The Advantages and Risks of Bluetooth Door Lock Can Not Be Ignored

The novel coronavirus pneumonia has disrupted the normal economic pace, but the US Proxy still raised $42 million B round of financing, and the total financing amount of the company was 58 million 800 thousand US dollars after the financing. It is reported that proxy company is mainly engaged in intelligent identification system. If such products are installed at door handles or elevators, users only need to turn on Bluetooth devices on their mobile phones, and the door will open automatically after receiving Bluetooth signals. Compared with the traditional key lock, fingerprint lock and identification card, Bluetooth is very convenient to open the door, which can reduce people's direct contact with public goods such as door lock.

Bluetooth door lock has outstanding advantages

Bluetooth door lock is a very important part of intelligent door lock. As an Internet of things connection technology, Bluetooth has its own advantages, and the combination with door lock can be described as a "natural match".

Bluetooth is a developing technology. Up to now, it has three categories and four versions. The bit rate has developed from 1Mbps to nearly 54Mbps. It seems to compete with WiFi in transmission speed. However, it is worth noting that once Bluetooth is turned on, it will continue to search and try to keep connected with the device. The power consumption of this process is very large. Bluetooth technology The future of Bluetooth technology lies in how to reduce power consumption while maintaining high transmission rate. Generally speaking, Bluetooth will continue to develop.

One of the main advantages of Bluetooth with keyless lock is that its battery life is more economical than WiFi. If the user uses the smart lock under normal circumstances and the number of entry and exit is reasonable, the battery can use Bluetooth for one year.

Another key advantage is the seamless integration of Bluetooth lock and smartphone without any third-party hub. If users' smart home needs are limited to keyless entry and do not need any hub of other devices, Bluetooth will be a wise choice.

Now, some large manufacturers purchase base station door locks. Their locks require Bluetooth and can be unlocked through mobile phone app. This is because Bluetooth door locks have incomparable advantages over fingerprint locks for centrally managed places.

A major innovation and breakthrough of smart locks on the market is to combine Bluetooth technology and supporting applications, break the fixed mode of traditional door locks and keys, and modernize the door locks.

The risk of Bluetooth smart door lock can not be ignored

Bluetooth smart door lock faces a very wide range of customer groups. Different user groups have different choices in Bluetooth smart phone unlocking, fingerprint unlocking, password unlocking and so on.

At present, the market of Bluetooth smart door lock is not standardized and there is no unified industry standard. Consumers often buy Bluetooth door lock because of novelty and convenience. Young users generally accept Bluetooth door lock because of the unlocking method of mobile app and convenient door lock system management.

In addition, when making Bluetooth smart door locks, manufacturers give priority to physical reliability rather than wireless security. Therefore, users who have bought problematic Bluetooth smart door locks are advised to close the Bluetooth connection on smart phones when not in use.

The Advantages and Risks of Bluetooth Door Lock Can Not Be Ignored 1

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Which Is a Good Collar Bluetooth Headset? Easy to Use Collar Bluetooth Headset Recommended
Which Is a Good Collar Bluetooth Headset? Easy to Use Collar Bluetooth Headset Recommended
Which is a good collar Bluetooth headset? Easy to use collar Bluetooth headset recommendedAt this stage, earphones have become a must-have for everyone. With more and more earphone styles and brands, there must be many friends who want to start earphones but are troubled by many earphones,According to different wearing methods, there are different types of headphones: split type (which can be divided into flat head and in ear type), neck hanging type (which can also be divided into flat head and in ear type) and head wearing type. Today, I recommend several neck hanging Bluetooth headphonesRecommendation 1: Nank Nanka S2 game Bluetooth headsetSelling price: 249 yuanBluetooth protocol: aptx ll, aptx HD, aptx, AAC, SBCWaterproof grade: IP55Endurance: 12hOne sentence comment: Nank Nanka S2 Bluetooth headset not only pursues the ultimate cost performance, but also takes into account the comfort and appearance. It is a high-quality and high-performance sports Bluetooth headset that is "easy-to-use, practical and durable". It is produced in full accordance with military standards, which will be loved by a group of sports enthusiasts. With the increase of brand exposure and the spread of users' word-of-mouth, now many ordinary donkey users begin to choose Nank Nanka S2 Bluetooth headset. Nanka S2 is the first Bluetooth headset supporting aptx ll protocol in the industry. The official delay is as low as 0.04s, while Apple's airpods score is 0.2S, and the hanging neck headset of a meter is about 0.3s. In the professional game Bluetooth headset, Nank Nanka S2 not only has built-in Qualcomm qcc3034 Bluetooth 5.0 chip, but also is the first in the industry to support aptx-ll low delay mode, combined with aptx-hd decoding and AAC high-speed transmission. By shortening the data cache time, it speeds up the data transmission speed, and the full link delay of the mobile phone from sound generation to sound reception is as low as 0.04 seconds, Compared with ordinary Bluetooth 5.0 chip, the delay rate is reduced by 42.9%, and compared with ordinary Bluetooth 4.2 chip, the delay rate is reduced by 81.8%, which further improves the connection stability and absolutely reaches the leading level in the game Bluetooth headset industry. After all, the cost performance is the strongest below 1000 yuan.Recommendation 2: B & oearset Bluetooth headsetSelling price: 780 yuanBluetooth protocol: AAC, SBC, LDACWaterproof grade: unknownEndurance: 5hOne sentence comment: just for wearing, the weight of the headset does not cause a bad experience. The ear hook with adjustable angle is very convenient to wear, and the headset is very stylish. And it's not like watching movies with in ear headphones. After wearing them for 1-2 hours, the ears often feel hot and painful in the ear canal. From this point of view, earphones are very suitable for medium and long distance travel.Interface: the charging port of earset is a type-C interface, and the use time of one charge is about 5 hours. This endurance time is not long, but it is enough for a long trip. Bluetooth version is 4.2, which is relatively stable and is not easy to cut off. The wire control and microphone of the earphone wire part, and the shape of the wire controller are also very implicit and elegant. The shell is anodized aluminum, and there is no printed logo on the keys, which also presents a simple aesthetic feeling.Recommendation 3: ath-ckr35bt iron triangle Bluetooth headsetSelling price: 348 yuanBluetooth protocol: AAC, SBC, LDACWaterproof grade: unknownEndurance: 7hIn a word: the earphone cavity flashes under the light, which feels like bulingbuling, but the material here is not metal, but plastic treated by high gloss electroplating process. Compared with black and white traditional colors, blue is undoubtedly more eye-catching. Although it is not as popular as some fashionable headphones, it is very suitable for some people who are a little sulky.Recommendation 4: libratone (Bird headset) track wireless Bluetooth headsetSelling price: 498 yuanBluetooth protocol: AAC, SBC, LDACWaterproof grade: IPx4Endurance time: 16hOne sentence comment: it is comfortable to wear and not easy to fall off. Other features: it can only be paired by downloading the app. The manual has an electronic graphic version in the app, and there is no paper manual in the package. Sound effect: noise reduction is very good. Appearance material: the material is indistinguishable, and the weight is really light. Satisfied with the appearance. The appearance is explosive and light. Compared with similar products, it feels very comfortable to wear. The material in contact with the skin can fit the outer ear well.
What Kind of Bluetooth Headset Does Not Hurt the Ear and the Top Ten Bone Conduction Headset Brands
What Kind of Bluetooth Headset Does Not Hurt the Ear and the Top Ten Bone Conduction Headset Brands
At present, bone conduction earphones are relatively small products, and their popularity is not too high. Maybe many people don't understand them.At present, it is mainly positioned as a sports headset, which is mainly used for running, swimming, fitness and other sports. It is more popular in the sports and fitness circle.In addition, due to the non ear design of bone conduction earphones, it is also very friendly to people with otitis media who have small ears and are not suitable for wearing earphones. Next, I'd like to introduce some bone conduction headphones that don't hurt your ears.1. Nanka runner pro2 bone conduction wireless headset"Constantly protect human hearing health by continuously bringing open binaural and healthier bone conduction hearing products." this is the development mission of Nank Nanka bone conduction. In the environment where the industry standard of bone conduction is not yet perfect, Nank Nanka took the lead in releasing, full earthquake directivity technology and ot closed leakage reduction 3.0 Technology. The use experience of bone conduction earphone is greatly improved.In terms of wearing, Nanka runner pro2 has a super light body of 28g, and the material is made of highly active and flexible titanium. It is comfortable and has no sense of weight-bearing, which can ensure a healthy all-weather listening experience. At the same time, Nanka runner Pro 2 introduces NFC flash connection technology, abandons the cumbersome Bluetooth connection process, and brings a smoother and faster connection; Ipx8 level deep waterproof provides users with the use of underwater scenes. They can still listen to music when swimming and bathing.2. Shaoyin as800 bone conduction Bluetooth headsetThis is the flagship machine of Shaoyin bone conduction Bluetooth headset. The lightweight body is only 26G. The connection between the 5.0 Bluetooth chip and the mobile phone is more rapid and stable. The innovative 180 ° tilt damping technology provides a more solid guarantee for the sound quality of the headset. The super water proof performance of IP67 makes it easy for you to prevent rain from spilling, The 8-hour endurance performance makes the exercise more enjoyable.3. Philips n6605 bone conduction headsetIn appearance, Philips adopts a highly functional appearance, which is a bit like the headphones in science fiction movies, with avant-garde and great tension. The main part is skin friendly silica gel, which is very friendly and will not hurt the skin. Its weight is only 36g, and it has no sense of weight-bearing.The biggest highlight is that the Philips n6605 is equipped with two LED warning lights, which can be switched on, slow flashing, fast flashing and off, so as to maximize the personal safety of night runners.4. Nank Nanka CC II bone conduction sports headsetNank Nanka CC2 is an entry-level bone conduction earphone of Nanka. Although it is an entry-level, it is not as much as some middle-end bone conduction earphones on the market. Firstly, in terms of waterproof, Nank Nanka CC2 is waterproof to ipx6, which is not available in some middle-end earphones. Secondly, Nank Nanka CC2 is equipped with a magnetic suction charging interface only owned by the flagship model, Instead of the traditional type-C interface, this design brings better sealing, dustproof and waterproof to a higher level. The fuselage weighs only 28 grams, so that the ears do not feel the slightest burden and pressure during sports, which can fully create a better sports experience for users.fqj
How You Can Make Money on Bluetooth Headset Products
How You Can Make Money on Bluetooth Headset Products
The introduction of bluetooth headsetBluetooth headset is an advanced technology that makes people use it to communicate with each other, communicating via Bluetooth. A bluetooth headset allows users to hear and speak without any physical connection to another person. It uses a single microphone and can provide up to 3 listening speeds. When using bluetooth headset, users can listen to their own conversations without having to connect to another person. If they have one, they can also send text messages without having to be connected to another person. They can also add audio when they are in the room.Bluetooth headset is an advanced Bluetooth headset that allows users to use it to control their phone and also connect to other devices, such as phones, TVs, computers, PDAs, notebooks, notebooks, tablets, desktops, etc. The bluetooth headset uses Bluetooth technology to make it possible to send and receive data from another device. A bluetooth headset can be used to send and receive data from another device. In the context of a computer, bluetooth headset is used to communicate with other devices in the same network.It is an easy way to communicate using Bluetooth. If you have never used bluetooth headset before, then this article is a great place to start. You can now get your hands on the bluetooth headset and have a quick glimpse of what it is that you are looking for. There are many things that you can do to make sure that you are getting the best quality sound possible. The only thing that you need to do is check the microphone before you start talking to the speaker. It is important to note that bluetooth headset does not use any batteries or other power sources.Bluetooth headset is a means of connecting to other computers or mobile devices and then communicating with them using Bluetooth headset. It is used by people who have difficulties with voice communication. The Bluetooth headset can be used to connect to the laptop or tablet, as well as to communicate with any other computer or mobile device. A bluetooth headset can also be used to connect to an USB cable and it can also be used to connect to an internet connection.The product instructions of bluetooth headsetBluetooth headset is the basic means of communicating with your phone or other device that has been in your hands for many years. If you have any technical questions about bluetooth headset then we have put together a quick guide to help you get started on how to use bluetooth headset.No one wants to be stuck in a factory and waiting for someone to get hold of the bluetooth headset. You just need to put it in their hands and go through the instructions and connect it to the computer. If you have any problems with this then I suggest you check out this article on the topic 'What is bluetooth headset?' where the section focuses on 'The products instructions of bluetooth headset' could look like this 'No one wants to be stuck in a factory and waiting for someone to get hold of the bluetooth headset.Backing up your phone or bluetooth headset is the best way to save energy and get more done in your work. There are many different types of bluetooth headset, so you need to be sure to choose the right one for you. The right bluetooth headset will make your life easier and help you work more efficiently. You can also find a great deal on bluetooth headset accessories by following these links: www.bluetooth.Bearing in mind that bluetooth headset are relatively expensive, and many people will purchase them to keep their hands free from any obstructions in their own body. They can be used by people who want to take control of their phone while doing so. The Bluetooth headset also allows users to play music or use other apps. If you want to use the Bluetooth headset then you need to install it on your computer and make sure that it is connected to the internet.How to maintain bluetooth headsetThe easiest way to keep track of your device is to create a secure connection and install it on your computer. You can then connect it to your Bluetooth headset by pressing the keypad on the keyboard or using the remote control. This will ensure that your device is connected to the Internet.If you want to use bluetooth headset, then go for the Google's Smart Pc. Just make sure that you have Bluetooth headset and your computer is connected to the same WiFi network. If you are using a laptop or tablet, then go for the best wireless headset available in the market. You can buy it from Amazon if you have one.Bluetooth headset is an important part of our daily lives. There are two types of bluetooth headset, Bluetooth headset and Bluetooth headset. The most important part of bluetooth headset is that it uses Bluetooth headset and wireless headset. If you have any doubt about how to maintain bluetooth headset then contact us and we will tell you how to maintain bluetooth headset.No one is talking about bluetooth headset, but we all know that there are many different types of bluetooth headset. For example, you can use Bluetooth headset to call someone and get help from your friend or family. It is easy to connect Bluetooth headset to your computer and make calls using your phone. It is not difficult to use Bluetooth headset and it is much easier to use than other Bluetooth headset. The difference between Bluetooth headset and Bluetooth headset is that they are compatible with each other and there are many different types of bluetooth headset.Bluetooth headset is an advanced type of wireless technology that allows people to communicate with each other. It can provide various communication services such as texting, web surfing, or any other mobile device. If you are interested in becoming a user of bluetooth headset then you should read this blog post about how to use bluetooth headset. The best way to use bluetooth headset is to install the application on your computer and connect it to your Bluetooth headset. You can also use it to get some support for your phone.Tips for buying bluetooth headsetIt is really easy to find some great Bluetooth headset. Most people just want to use it to play games, while many people use it to watch TV, talk to people and have conversations. But when you are using bluetooth headset you need to make sure that you get the right information about what you are looking for. I will explain what I mean by bluetooth headset and what it is used for.Bluetooth headset is a universal accessory that you can use to connect to your computer, laptop, smartphone, or any other device. It is usually attached to your computer or phone by using Bluetooth headset and makes it possible to connect to your computer via Bluetooth headset. When using bluetooth headset, you can connect to your computer by connecting it to your smartphone or other device. This will allow you to make calls and messages from your computer or device.When you are purchasing bluetooth headset, it is important to make sure that you get the right one for your needs. Buying bluetooth headset from a reputable online store will give you the best advice about what to look for in buying bluetooth headset. The internet is an amazing place to find information about bluetooth headset and how to use it properly. It is very important to have the right bluetooth headset to ensure that you get the right one for your needs.Buy bluetooth headset and use it to listen to music, make calls, play games, etc. A good way to save money on electricity is to get bluetooth headset by downloading it from your computer. It will cost you about $10 and will give you enough information about how to use bluetooth headset. Buy bluetooth headset by download link below. This is the best way to buy bluetooth headset by download link. It will give you enough information about how to use bluetooth headset by download link.
At Present, the Most Worthy Bluetooth Headset and the Domestic Bluetooth Headset with the Best Reput
At Present, the Most Worthy Bluetooth Headset and the Domestic Bluetooth Headset with the Best Reput
Bluetooth headset has become a representative of the trend for a time. As the student party leading the fashion army, it is even more staffed. However, for many Bluetooth headset brands and styles, it is really eye-catching for a time. Let's briefly summarize the current headset brands. Among the medium and high-end headphones, our domestic Bluetooth headphones are the most popular. It is convenient for you to choose and count out several domestic Bluetooth headsets with good reputation.1. Nank Nanka Lite ProHighlight: Qualcomm Bluetooth 5.2, good sound quality, game acceleration modeRecommendation Index: 5 starsNank Nanka Bluetooth headset is the most popular Bluetooth headset recently. Some time ago, it was rated as the "most cost-effective first choice" of Bluetooth headset in 2020 by major digital media. Its online popularity and hot sales have been sublimated and affirmed again.In terms of configuration, the main cost-effective Bluetooth headset adopts Qualcomm's newly released Bluetooth 5.2 technology and all-round upgraded ceramic antenna. Combined with the dual host design, the left and right communication signal strength is increased by 800%, the anti-interference energy is increased by 300%, and the transmission distance is increased by 50%. In addition, ipx5 level deep waterproof, game one click acceleration, 13mm composite diaphragm large dynamic coil unit, dual mic enc call noise reduction, support type-C fast charging, support intelligent touch, adjust the volume, and the headset can last up to 7 hours alone. When used with the charging bin, it can provide 28 hours of ultra long endurance. It is praised by major professional media as "the king of cost performance in Bluetooth headset".In addition, the high comfort and sound quality of this Nank Nanka Lite Pro headset is well-known in the industry. It has a semi in ear design that does not squeeze the ear canal. It weighs 3.8g, which is more in line with the ear type of Asians. In terms of sound quality, South Carolina Lite Pro is still in the testing stage, and has established a high-standard acoustic laboratory. It has also hired Canadian Toronto musician William Arnaldo to work with 20 European and American tuners for two years. It has been debugged millions of times for different music styles, making its sound quality highly original, showing a strong and broad range, making the treble dynamic and the bass powerful, Comparable to the effect of thousand yuan headphones.2、1MORE PistonBudsHighlight: it is very compact and easy to carry, and the endurance can reach 20 hours.Recommendation Index: 4 starsPistonbuses gives people the feeling that the price is not reduced. In fact, 4.2g on one side is not much different from a piece of A4 paper, and the 7mm micro ring makes pistonbuses have the Ultra Mini design with comfobus. Bluetooth 5.0 ensures the signal stability. The headset supports master-slave switching, and the use of one ear and two ears can be switched seamlessly. On the basis of meeting the certain density of human voice, the sound quality, It provides a good display of high-frequency overtone and musical instrument hierarchy, and gives consideration to the overall balance for the playback of tracks.3、OPPO Enco XHighlight: a high-end earphone made by oppo, noise reduction and sound quality coexistRecommendation Index: 5 starsAs for the earphone body, there is indeed some taste of fruit brand at the first sight, but considering that the current TWS earphone is difficult to make any major innovation in appearance design. In order to make up for his lack of experience in the headphone industry, oppo asked Dana's audio experts to tune oppo enco x to ensure that the sound output is more hierarchical. At the hardware level, it adopts coaxial dual unit and supports lhdc high bit rate transmission, which can better ensure the sound quality. As for noise reduction, most sounds can be isolated after wearing headphones and turning on the strong noise reduction function. If songs are played at the same time, it is basically isolated from the world.4、FIIL CC2Highlight: fully upgrade Bluetooth 5.2 with long enduranceRecommendation Index: 4 starsThis headset focuses on young users and takes into account sports and fashion elements, so it is more personalized and younger in design. The metal body, strong lines and open charging bin. Fiil CC2 also upgrades Bluetooth chip 5.2, and improves the connection stability and anti-interference ability. At the same time, the power consumption has also increased a lot. Under the same volume of the charging bin and the previous generation, the battery life of the headset has been increased to 32 hours. The 13.1 mm large moving coil unit, combined with the titanium plated three-layer composite diaphragm, can provide a wider sound field and better analytical power, and the sound field has been specially debugged to bring an immersive music experience.
Do Bose Soundlink Speakers Connect with All Bluetooth Devices?
Do Bose Soundlink Speakers Connect with All Bluetooth Devices?
Do Bose Soundlink speakers connect with all bluetooth devices?Should connect with any Bluetooth devise.the older devises may transmit more noise and the signal will not be as clear also could drop the signal occasionally but it should connect.newer versions will have a better sound and are less apt to drop the signal— — — — — —How NFC can to speed Bluetooth transactions—todayWhile Bluetooth is an excellent technology for short-range data communication, shortcomings in its transport layer protocol can make the initial set-up of links between devices cumbersome for the user. Simply associating a Bluetooth headset to a cellular phone can take up to 30 seconds (worst case) and even re-connecting previously recognized nodes often requires some manual intervention. Fortunately, Near Field Communication (NFC) technology can be used in conjunction with Bluetooth to simplify the process of adding nodes to a user's normal personal area network, or establishing temporary links to public resources such as cash machines, photo printers, or point-of-sale terminals. Using NFC to do the initial "handshake" between Bluetooth nodes eliminates the need for user intervention and enables almost instantaneous pairing of devices. Its separate operating frequency and complimentary applications (see Table 1) make it easy for NFC to co-exist with Bluetooth in the same product, allowing it to simplify the discovery and negotiation phases of a Bluetooth transaction. There are three main features that make NFC different and complementary to any other wireless network technology. • Shorter distance: NFC has been deliberately designed with an extremely short (10cm) operating range to prevent accidental or unauthorized activation of the link. • Intuitive linking procedure: NFC's linking procedure was developed to work the way ordinary consumers do, instead of the way engineers or programmers think. Much like today's smart cards, initiating a transaction with an NFC-enabled PDA or cell phone is accomplished by simply holding it in close proximity to the device you wish to connect to. • Ability to communication with un-powered RFID products: NFC works in the conventional way between self-powered devices and also supports communication to passive devices such as contactless smart cards or RF transponders. NFC basics NFC was originally designed for "no-touch" data transfers across very short distances (10cm or less) using the 13.56 MHz RFID band. It is an open standard, defined by ISO 18092 and ECMA 340 and is backward-compatible with the global standard for RFID per ISO 1443. Its low cost, high reliability and global compatibility has made it the technology of choice for applications such as RFID, electronic payment, and "no swipe" smart cards. These same characteristics also allow NFC to serve as a secondary channel to automatically perform the authentication and initial parameter exchange required to establish a Bluetooth link. Whereas a normal "pairing" operation between Bluetooth devices usually takes five or six seconds (and up to 30 seconds in congested environments), NFC's streamlined single-link protocol completes the same task in 100-200 milliseconds. This efficiency is in good part due to the fact that NFC is a relatively simple protocol initially developed for a handful of straightforward, point-to-point applications, an approach which contrasts sharply to Bluetooth's more complex series of usage models. Using a subset of standard RFID technology and a typical output power of between 1 to 2 dBm, NFC can support ultra-short data links with transfer rates of 106 Kbits/s, 212 Kbits/s, and 424 Kbits/s in both its active and a passive operational modes (see figure 1). NFC's "active mode" requires both devices to support full duplex data exchanges while "active/passive" operation only requires a single active transmitter which can be used to energize its passive counterpart. The passive element's receiver is only required to acknowledge its presence when polled, confirm availability to enter communication, and acknowledge receipt of data. NFC's active mode on the other hand, requires both nodes to be engaged and negotiate the exchange. While most applications require that both NFC nodes be active, the "active/passive" mode will be useful for communicating with un-powered devices, like contactless cards. An NFC transaction always follows a straightforward sequence of Discovery, Authentication, Negotiation, Transfer, and Acknowledgment." In addition, its short (10 cm) range limits access to potential "black hat" hackers. For sensitive applications such as secure payment exchanges, AES and triple DES encryption can be added at higher layer using the same techniques employed by standard smart card technologies. NFC's negotiation phase establishes parameters which define the upcoming transaction such as link speed, device ID, application, transfer size, and action requested. At this point, the NFC link can either perform a simple data transaction of its own, or be used to establish a connection to a Bluetooth-based peer-to-peer or host/client link between devices. The latter involves negotiating Bluetooth node addresses for both ends and using Bluetooth's higher-layer protocols to handle link termination. These parameters are passed between the Bluetooth and NFC devices using either serial link, typically either an I2 C, or SPI interface, and a simple exchange protocol. This ability to handle lower-layer tasks automatically enables the NFC protocol to greatly improve the user experience of many consumer applications. The illustration below (see Figure 2) compares the interactions required by the user to establish a link between two cellular handsets or PDAs in order to play a game or exchange photos. Similar mechanisms have also been developed for Wi-Fi and Wireless USB users to enjoy the same level of speed and convenience when making connections to their networks. Figure 2 - NFC's transparent handoff to Bluetooth simplifies establishing a link for multiplayer gaming between handheld devices Since NFC compliments Bluetooth's longer range and higher data rates, devices equipped with both technologies enjoy greater flexibility and offer a much better user experience. A simplified way of looking at the synergies between the two technologies is to imagine that Bluetooth is a versatile "cable" that can be used to enable exchanges between any two electronic devices while NFC serves as a universal "connector" that makes the process quick and easy. But rather than simply list the dozens of applications where NFC is expected to find a ready market, we'll explore a few scenarios that show how simplifying Bluetooth's linking process can help make today's applications easier and more fun to use. We'll also look at how NFC will enable new applications that unleash the power of handheld devices and may even give rise to entirely new classes of products. Hands-free connections NFC will gain early market acceptance by simplifying the process of linking Bluetooth-equipped cell phones with headsets and hands-free systems. A headset or speaker unit need only contain a contactless RFID card to enable pairing with a cell phone simply by touching the two devices together. In this scenario, the phone reads the card to determine both the offered functionality of the headset and the Bluetooth set-up parameters. Synchronization of your phone or PDA is now as simple as holding the device close to your PC and answering a couple of questions from a menu on your handheld's screen. Gaming NFC will also find many applications in the world of electronic games by enabling local networked game play in ad-hoc environments such as students gathering at lunch or commuters on their way to and from work. When used in conjunction with Bluetooth, NFC overcomes many of problems currently associated with establishing a connection that have slowed its acceptance. Unlike connecting Bluetooth headsets to cell phones where a link is usually configured only once, ad-hoc gaming requires a gamer to establish a new link every time they hook up with a player. The three-to-five-minute procedure that was acceptable for a one-time set-up of a phone and headset quickly becomes a time-consuming hassle if a user has to repeat it several times a day. This process can get even more complicated in crowded public spaces where many Bluetooth devices may be visible at any one time-a situation which makes it difficult to determine which device is the one you want to attach to. NFC provides the solution to this problem, allowing connections to be made seamlessly, intuitively and instantly. Whether you've got a dedicated gaming device such as a Game Boy or PS2, or you're using the games embedded in your cell phone or PDA, NFC makes setting up a multiplayer connection a simple "touch-and-go" operation. The two gamers only need to touch their devices and allow the NFC software on the devices to handle the discovery, inquiry, authentication and encryption set-up required to establish a Bluetooth link. Image printing The rise of digital photography has created an explosive demand for instant prints, both from home printers and the photo kiosks that are finding their way into nearly every drugstore, discount outlet, and convenience store. NFC-enabled Bluetooth links can provide a simpler alternative to the USB cables CDs, and memory cards that are currently used to move images between cameras and printers. Printing the images on your phone or camera at a commercial photo kiosk would simply involve placing your device in a designated area on top of the machine, enabling image sharing from your handheld's menu, and printing in the normal manner. In the home and office, printers with NFC-enabled Bluetooth capabilities will make printing directly from any similarly equipped camera a seamless process. During the two-to-three years it will take for the technology to become commonplace, USB-based adapter "dongles" can enable older computers and printers to talk to Bluetooth-equipped handhelds. Image sharing The same technology will also help 'liberate' images from the cramped confines of the tiny screens in PDAs and smartphones. It's not too hard to imagine friends swapping photos between handhelds in the same way that they 'beam' business cards to each other today. This ability to fluidly move images will also enable computers, televisions, and flat panel screens to become temporary displays for pictures. Image transfer capabilities can be inexpensively embedded in a DVD player, home theater unit, or perhaps even in the video display itself. Simply touching your handheld device to an NFC-enabled Bluetooth appliance will initiate a link and bring a menu up on the portable unit's screen that allows you to select, transfer and display an image. And much like computers, aftermarket Bluetooth adapters will enable earlier-generation video products to accept a user's photos from any Bluetooth-enabled source. The feasibility of image sharing has already been proven in a technical demonstration conducted by Philips. In subsequent commercial implementations, the NFC software will be integrated into the unit's software to minimize user interaction. NFC today and tomorrow NFC is already gaining wide acceptance with the technology already complimenting Bluetooth capabilities in cell phones, PDAs, and other high-volume consumer devices. We can expect to see Bluetooth-equipped devices that support NFC on the market during 2006. NFC-enabled POS terminals cash machines are already deployed in different regions and touch-and-go photo print kiosk are slated to hit the market in early 2007. During these early days, NFC will find its way into products as a stand-alone chip. Initial target cost for the types of applications described above is under $1 for high production volumes that are driven by widespread acceptance. Within two-to-three years, it is expected that most NFC devices will become functional cores within larger integrated solutions, making it more of a design feature than a cost addition. This widespread acceptance of NFC as an enabling technology for wireless protocols will help create a new generation of wireless products that interoperate seamlessly and exchange voice, video, and e-cash with equal ease. For further information NFC is an open standard, governed by the NFC Forum whose charter is to guarantee interoperability between applications. For more information, About the author Taoufik Ghanname is a marketing manager for contactless and embedded security at Philips Semiconductors, and is responsible for near field communication (NFC) business Ghanname holds a Master in Electronics & Telecommunications from Institut National Polytechnique de Grenoble (INPG-ENSERG).
FI / Bluetooth Combination Pure CMOS RF Front-end IC Rfx8422s and Rfx8422
FI / Bluetooth Combination Pure CMOS RF Front-end IC Rfx8422s and Rfx8422
key word:RF IC, RF front end, Wi Fi, BluetoothThe rfx8422s and rfx8422 series of pure CMOS rfeic provide a complete PA / LNA / SP3T three in one solution, and the price is lower than the two in one products of competitorsRfaxis began mass production of rfx8422s. This is the first and only single chip / single silicon Wi Fi / Bluetooth combined pure CMOS RF front-end integrated circuit (rfeic) in the industry. In addition, rfaxis has started sampling rfx8422, which is a simple alternative to rfx8422s for applications requiring a maximum package thickness of no more than 0.4mm.Mike Neshat, chairman and CEO of rfaxis, said: "we are pleased to announce that rfaxis is about to release a new Wi Fi / Bluetooth RF front-end solution at an unprecedented price."Rfx8422s and rfx8422 integrate key RF functions for dual-mode Wi Fi / Bluetooth operation in smartphones or other mobile devices. These functions include high efficiency linear power amplifier (PA), low noise amplifier (LNA) and single pole three throw (SP3T) antenna switches all integrated in a single silicon chip, and adopt an ultra compact 2.5x2.5mm 16 pin four side pinless flat (QFN) package. The rfx8422s and rfx8422 series, which constitute a complete "three in one" rfeic, are developed and produced by the bulk CMOS process with the most cost-effective advantages in the industry, providing the most advanced RF performance and pin compatibility with similar products of competitors in today's market.Neshat said: "By making full use of the cost-effectiveness of CMOS, we can now provide a complete wi FI / Bluetooth combined three in one rfeic, which is not only cheaper than the existing two in one solution of our competitors, but also has much more functions. For the sake of cost performance, our competitors' two in one products only provide LNA and SP3T switches, but lack the ability to expand the operation range of wireless devices Important power amplifier. By releasing the revolutionary rfx8422s / rfx8422 product series, rfaxis continues to provide CMOS based rfeic technology that can change the rules of the game for the mainstream wireless market. "Founded in January 2008 and headquartered in Irvine, California, rfaxis, Inc. specializes in the design and development of RF semiconductors. With its patented technology, the company leads the next-generation wireless solutions specially designed for the multi billion dollar Bluetooth, WLAN 802.11b/g/a/n/ac, MIMO, ZigBee, AMR / AMI and wireless audio / video streaming markets. It utilizes pure CMOS and combines its own innovative methods , patented technology and trade secrets, rfaxis has developed the world's first RF front-end integrated circuit (rfeic). For more information, please visit:.contact information:RFaxis, Inc.Company contact information:Yongxi Qian,949-825-6300yongxi@rfaxis.com
Cypress Launches the Most Integrated Bluetooth Intelligent Module in the Industry
Cypress Launches the Most Integrated Bluetooth Intelligent Module in the Industry
San Jose, California, USA, October 5, 2015 – Cypress Semiconductor (NASDAQ: CY) today launched a Bluetooth ® Intelligent module, the low-power Bluetooth solution takes the lead in integrating programmable analog and digital modules into a fully certified module. This new small size ez-ble ™ PSoC ® The module complies with Bluetooth 4.1 standard. Through the global management standard, the design process can be greatly simplified and the product launch process can be accelerated. Cypress can provide chips, software, firmware and hardware modules in a one-stop manner, so as to make customer support very smooth and facilitate the development of sensor based low-power Internet of things systems, including sports and fitness monitoring devices, medical devices, wearable devices, home automation solutions and game controllers.Sensor based systems need an analog front end (AFE) for sensing, digital control logic, a ble RF module and a microcontroller, while products equipped with advanced user interface also need a touch or display IC. Ez-ble PSoC module is based on cypress PSoC ® 4 ble programmable system on chip with arm ® Cortex ®- M0 core integrates all modules required for sensor based systems in a compact space of 11 mm x 11 mm x 1.8-mm, as well as cypress's industry-leading CapSense ® Capacitive touch function, two crystal oscillators, an on-board antenna, a metal shield and multiple passive components. Customers who use this module for design can apply for the use of Bluetooth logo on their products by referring to the unique authentication design identification code (QDID) assigned by Bluetooth SIG to cypress. Ez-ble PSoC module meets the certification and radio management standards of major markets such as the United States, Canada, Japan, South Korea and Europe, and can save about 200000 US dollars for customers in hardware R & D, testing, manufacturing and certification costs.Dave solda, director of cypress module business unit, said: "Sensor based systems that connect the real world to the Internet of things must interact and operate autonomously using low-power wireless communication modules and batteries. These system designs used to require multiple ICs, but cypress's ez-ble PSoC enables designers to use an easy-to-use module to improve the integration of the system, so as to reduce the BOM cost and required on-board space of the solution, and reduce the cost of the solution Short time to market. "Designers of Bluetooth intelligent products often need to use software tools from multiple manufacturers and develop complex firmware to meet the requirements of wireless specifications. Cypress integrates Bluetooth low-power protocol stack and configuration files into a royalty free, GUI Based ble component. Designers can use cypress's PSoC creator ™ The IDE will drag and drop the component into their design. PSoC creator allows designers to complete system design with a simple tool. The application details of cypress ble component built in PSoC creator include all supported ble protocol version application instances and hundreds of mixed signal system design application instances.The ez-ble PSoC module allows designers to create custom AFE front ends for sensor interfaces using programmable analog modules such as operational amplifiers, comparators, ADCs and DACs. Designers can also integrate digital logic through programmable digital modules, including timers, counters, pulse width modulators (tcpwm), serial communication modules (SCB) and universal digital modules (UDB) The programmable architecture allows UDB to share CPU tasks, thus reducing the power consumption of battery powered applications, and dynamically reconfigure each module to provide a variety of functions.Besides ez-ble PSoC, cypress also has ez-ble PSoC ™ Module, which is based on cypress's pres ble programmable on-chip RF solution. At present, it is put into mass production in a small 10 mm x 10 mm x 1.8-mm specification. Ez-ble pres is aimed at remote controls, medical and fitness equipment, household appliances, toys and other wireless applications.Cypress offers a $49 ble pioneer development kit that allows users to easily use cypress's ble devices while maintaining the original design commonly used based on the PSoC 4 pioneer toolkit. The kit includes a USB ble adapter that can be paired with the cysmart simulation tool to connect the designer's windows ® The PC is transformed into a ble debugging environment. Designers can insert the ez-ble PSoC evaluation board (cyble-014008-eval) into the ble pioneer development kit to quickly and easily evaluate the ez-ble PSoC module.Product supplyThe ez-ble PSoC module is now provided with samples and is expected to be put into mass production in the fourth quarter of 2015. It is a 32 pad SMT module equipped with 25 gpios, 128KB flash memory and 16kb SRAM, which is ideal for space constrained applications.About cypressCypress (NASDAQ: CY) provides core high-performance and high-quality solutions for today's most advanced embedded systems, which are used in a wide range of fields from automotive, industrial and network platforms to highly interactive consumer and mobile devices. We have a rich product line, including nor flash memory and f-ram ™ And SRAM, traveo ™ Microcontroller, the industry's only PSoC ® Programmable system on chip solution, analog and PMIC power management chip, CapSense ® Capacitive touch sensing controller, wireless ble, low-power Bluetooth and USB connection solutions. Cypress is committed to providing innovative, industry-class support and excellent system value to customers all over the world.
There Are Many Brands of Bluetooth Headsets on the Market. How Should We Choose
Once upon a time, the first time I saw a Bluetooth headset was in a Hong Kong police bandit film. When the police performed their task, they stuffed a small Bluetooth headset in their ears, which was both hidden and convenient. Nowadays, it is not surprising that Bluetooth headsets are widely used, and there are many kinds of Bluetooth headsets on the market. With a wide range of brands and different kinds of Bluetooth headsets on the market, how to choose Bluetooth headsets has become a difficult problem.The double twelve is coming soon. Many netizens are eager to try. They are ready to chop their hands. Friends who intend to buy Bluetooth headsets pay attention to it. A real wireless Bluetooth headset highly praised by music enthusiasts has strongly joined the Double Twelve activities. The preferential strength is unprecedented. Conscience products are worth owning. Rambler Bluetooth headset used to be the love of music enthusiasts. This Edifier fundus true wireless noise reduction headset adheres to the consistent concept of putting sound quality communication first, and adds many functions such as active noise reduction, dust and water prevention, single and double seamless switching and so on. Whether you are an Apple phone or an Android phone, it can match perfectly. Such an excellent Walker's real wireless noise reduction headset is worth at least more than 1000 yuan, but it only needs more than 300 yuan to catch up with the year-end double 12 promotions.During the year-end Shopping Festival of the 12th lunar new year, both the manufacturer and Jingdong platform showed full sincerity. There was no fancy publicity, only sincere concessions. During the event, there is no need to spell out orders or match with other products. As long as you place an order for Edifier fundus real wireless noise reduction headphones, you can get a direct discount of 80 yuan. In addition, Jingdong Baitiao phase III is interest free, comments on the map, can also get a thousand Jingdou, and even have a chance to kill a second for one yuan. These concessions are based on the walkers and the embodiment of brand strength, so that more consumers can have a real personal experience of real wireless Bluetooth headsets with advanced technology.Although the price of this activity has been greatly reduced, the quality of walkers' real wireless Bluetooth headset has only increased. This Edifier fundus true wireless noise reduction headset applies the latest noise reduction technology, which can perfectly deal with the external environmental noise and let users hear the original sound.Through a series of sound processing technologies, such as diaphragm technology, active noise reduction technology, external environment monitoring technology and dual wheat call noise reduction technology, it makes the clear sound stay in the heart through the headset, like a sweet spring. This headset has also done enough homework in sound transmission technology, fully taking into account the needs of the mobile game party, and has developed a professional game mode. In this mode, the delay can be as low as 80ms, listening and position identification is extremely accurate, so that friends who like to play games with headphones can enjoy the flowing game experience.Friends who want to buy Bluetooth headsets, Edifier fundus really wireless noise reduction headsets can't be missed in this double 12 year-end Shopping Festival.fqj
How to Choose Between Meilan E3 and Red Rice Note5?
The protagonist of the first press conference after the Spring Festival is Meilan E3, which will be held in Beijing on March 21. On March 16, Xiaomi will release the new red rice note 5 of the red rice series. The latter's important selling points are the domestic launch of Xiaolong 636 and photo promotion.On March 12, Meilan E3, which was "exposed" by the Ministry of industry and information technology as early as February this year, has been released with detailed configuration. The model of the machine is m851q, which provides three colors: champagne gold, obsidian black and dark blue, and the body size is 156.8 & times; 75&TImes; 7.6mm, weight 163g. 5.99-inch 2160 * 1080 IPS screen, 3300mah battery, Android 7.1.1 at the bottom of the system.The CPU frequency is 1.8GHz. In 2018, it's hard not to doubt that this is Xiaolong 636. The CPU of Xiaolong 636 is a 4 4-core kryo 260 core of 14nm LPP process, with the highest dominant frequency of 1.8GHz, and the GPU is Adreno   509。 It was jokingly called the youth version of Xiaolong 660, with hexagon   680 DSP and X12 LTE baseband (these two are the things of Xiaolong 820 / 821) support Bluetooth 5, but the dual channel lpddr4 frequency is only 1333mhz (Xiaolong 660 is 1866mhz).It provides 4 / 6G memory and 32 / 64 / 128G configurations. The main camera is 12 million 20 million pixels, which is likely to continue the miracle of the king of magic blue note's 6000 yuan photo. The configuration of red rice note 5 highly coincides with that of red rice note 5, and both sides are expected to focus on their own photos. If there is another play in the thousand yuan file, what price can Meilan give.
Have You Ever Used Tape Storage
Have You Ever Used Tape Storage
As long as it is related to technology, "never say impossible" to technologies that seem to be outdated. When one day there is a "change of Dynasty", it may "make a comeback", or even become more usable or attractive, and become a good way to solve new problems.It can't be true? Are we stepping into the time machine now? Everyone knows that "tape" is... "Antique" technology! Don't all storage applications now use solid state disk (SSD) or hard disk drive (HDD) memory?The answer is not exactly right. In a recent article in the Wall Street Journal - "companies look to an old technology to protect against new threats", it is mentioned that many companies store data on tape again in case. This is not just an anecdote: there are some powerful data certificates in the market, the unit shipment of tape has increased, and more and more data is stored on tape.Although tape is not as easy to access as SSD or HDD memory, this attribute is also an advantage, especially when the "worst" situation occurs, it can show its strong and slow recovery mechanism. In addition, because tapes cannot be "online", hackers are unlikely to access them. The Wall Street Journal article pointed out that "the government, financial services companies, medical insurance companies and other regulated industries still use tape as a backup system for digital records. Now, some companies are turning back to tape technology because hackers are becoming more and more powerful in penetrating their preventive measures."If you still stick to the old idea that tape is a large volume of disk, it is really out of date; In fact, there are only some archive disks left, and we are lucky to find the playback device. At present, the tape industry has standardized on the easy-to-use tape cartridge, so that it can play and rewind through the manipulator under the large array configuration of the tape drive "field", as shown in the table. Even with the assistance of the international tape storage Council, some standards began to appear, focusing on defining overall dimensions and formats, etc. Tape storage Council is an industry organization established in 2012 to promote the technological innovation and application of tape storage industry.Modern tape drives (lto-7) can be equipped with backup and restore performance up to 750mb / S (2.7tb / HR), and each cartridge can support 15tb of data (source: quantum Corp.)Two key criteria: ltfs and LTOThe two key standards of tape technology are linear tape file system (ltfs) - which can make tape "almost" like HDD; And the linear tape open (LTO) standard developed in the late 1990s as an alternative to the then proprietary tape format. In the "technology advances promote tape to new markets" report recently published by the tape storage Council, it briefly describes the latest progress and application of tape technology.The comparison of tape with SDD or HDD is not limited to security; The tape storage Council believes that reliability and bit error rate (BER) also deserve attention. As shown in the figure below, the quantum lto-7 has an error every 1019 bits, while the HDD of the top gauge has an average error of 1016 bits. The difference of up to three orders of magnitude is really impressive. Other performance comparisons between tape and HDD are also noteworthy, and may even break the traditional myth.Comparing different data storage media shows that high-performance tape provides the lowest bit error rate, even 1000 times better than other technologies (source: tape storage Council)The tape system is also a miniature analog signal and wireless transmission link, even if the stored data is digital. In many ways, it is similar to RF channel, except that RF is replaced by magnetic field for energy transmission. In addition, it also has all the problems that affect the RF "wireless" link, such as jitter, signal-to-noise ratio (SNR), inter symbol interference, signal strength change and so on.Of course, the reading channel starts with the analog preamplifier (installed as close to the reading head itself as possible) and the variable gain amplifier (VGA). But that is only the beginning of analog signal processing, because advanced tape systems use read channels with partial response, maximum likelihood (PRML) signal detection circuits to maximize the chance of successful and zero error data restoration (although the channel is irregular). Although the physical scale may be much smaller than the RF link, the signal path blocks are similar.There seems to be a development element contrary to "going back to the future". Tape is not only the first high-density data storage mechanism (much earlier than HDD), but also an early "amateur" - personal computers (PCS) use Philips Consumer audio tape cartridges as low-cost storage media (of course, low-speed and low-capacity), load the operating system and store programs and data through the "boot loader". Today, tape is not cost-effective for hobbies and business applications, especially high-density HDDs, which are more affordable and random access, but potential tape technology still plays a vital role - and even the trend of "comeback".As usual, I would like to reiterate once again: as long as it is related to technology, it is "never impossible" to say what seems to be outdated technology. When one day the "dynasty changes", it may "reappear in the Jianghu", or even become more usable or attractive, and become a good way to solve new problems.Have you used advanced LTO / ltfs tape technology? Or have you ever used tape storage before?
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