With the development of wireless technologies such as Wifi, Zigbee and GSM, Bluetooth technology is still the mainstream wireless communication technology. From the initial version of 1.0 to the current version of Bluetooth 5, Bluetooth technology has maintained a rapid growth in the wireless market. Especially, the popularity of mobile Internet has effectively expanded the application prospect of Bluetooth, and Bluetooth technology has become the standard of all kinds of mobile intelligent terminals. Why can Bluetooth technology become the mainstay of wireless technology? What are the advantages of Bluetooth technology compared with other mainstream wireless technologies? This paper discusses the application and development of Bluetooth technology in mobile Internet from the aspects of transmission speed, power consumption and security.
One. ? Historical Evolution of Bluetooth Technology
Bluetooth transmission, as a general communication technology, its main function is to replace the transmission of data lines, which is used for the connection and transmission between portable devices and their applications, such as mobile phones and other Bluetooth devices. From version 1.0 to version 5, Bluetooth has given more and more electronic devices a simple, safe and low-cost connection scheme.
Two. ? The advantages of Bluetooth technology in the application of mobile Internet have experienced five generations of development, and the power consumption problem that hinders the wide application of Bluetooth technology has been broken. The transmission speed and power consumption can reach 150 kbey, 40mA and 10 kbey, 30uA respectively. Among them, the maximum standby time, fast connection and low peak power consumption of BLE technology are of great significance for expanding the Bluetooth market and the convenient application of mobile Internet. Of course, Wifi, Zigbee, proprietary protocols, Bluetooth, GSM, CDMA, WCDMA, TD-SCDMA? It is also the mainstream wireless communication technology at present, but in internet applications, GSM, CDMA, WCDMA, TD-SCDMA? Belongs to the standard of mobile phone communication, so the following mainly compares the advantages and disadvantages of Bluetooth technology with Wifi, Zigbee and private protocol communication in mobile Internet applications. Bluetooth transmission, as a general communication technology, its main function is to replace the transmission of data lines, which is used for the connection and transmission between portable devices and their applications, such as mobile phones and other Bluetooth devices. Bluetooth provides a simple, safe and low-cost connection scheme for more and more electronic devices.
1、? Bluetooth and Wifi:Wifi is the most competitive wireless communication technology at present, which is very similar to Bluetooth in many aspects and the most threatening wireless technology in the development of Bluetooth technology. Compared with Bluetooth technology, Wifi has more advantages in communication distance and transmission rate, but its disadvantages are high power consumption, high cost and large radiation. However, the mobility of mobile Internet applications requires smart terminal devices to have good endurance, so Wifi is not suitable for low-power transmission devices such as wearable devices and cannot replace Bluetooth technology in the short term. In addition, the communication distance of Wifi is far, and the security of data transmission is vulnerable to hacker attacks.
2、? Bluetooth and Zigbee:Zigbee is a technical solution between wireless tag technology and Bluetooth. It has the characteristics of short distance, low complexity, low cost, low power consumption and fast response. Its power consumption performance is better than Bluetooth, and its security is between Wifi and Bluetooth. But the working speed is low (20 ~ 250 kbps), which can only meet the application requirements of low-speed data transmission. It belongs to minority communication technology, and the most terrible thing is that mobile phones don't support it. In the application of mobile Internet mainly based on smart phones, Zigbee can be said to be basically uncompetitive.
3、? Bluetooth and private protocol: The main advantage of the wireless application scheme of private protocol is its low cost, but its application scope is relatively narrow, and it is generally used for specific applications such as mine safety and home-school communication. Generally speaking, despite Bluetooth technology and Wifi, Compared with ZigBee, proprietary protocols and other wireless transmission technologies, there are still some defects, and at the same time, they are facing the competition of various wireless technologies. However, because the communication speed, power consumption and security of Bluetooth technology have reached a corresponding balance, Bluetooth technology is still competitive enough in mobile Internet applications.
3. Development and prospect of Bluetooth technology
At present, the main application of Bluetooth technology is in the field of consumer electronics. With the popularity of Bluetooth and the rise of mobile Internet, the application of Bluetooth technology has expanded from portable devices such as mobile phones and tablets to new fields such as Internet of Things and medical care. Many Bluetooth applications based on mobile platforms have brought new business opportunities to the whole wireless market.
Based on the introduction of Bluetooth 5, many indoor location service providers also got a surprise. Previously, Fun Electronics said that the technological innovation of Bluetooth 5 has injected more powerful power into the indoor positioning industry, which not only improves the positioning accuracy, but also enables the Bluetooth indoor positioning technology to operate stably in a more complex environment, providing technical support for richer application scenarios. As a leading provider of indoor location solutions in China, Xunxi has provided a variety of safe and efficient operation modes for industries, medical care, nursing homes, intelligent buildings, factories, exhibitions, museums/exhibition halls, kindergartens, prisons, fire protection and other fields. Now, we will wait and see whether more intelligent scenes can be realized by combining Bluetooth 5 technology.