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The cheapest 10 yuan "smart lighting" is about to debut
What is smart for hardware? The mass media often defines this: hardware products can be smart when they are connected to mobile apps. In the article "Intelligence of Shackles", Terryoy said: When cutting into people's life scenes, the first consideration is how products serve people, which can help people quickly analyze and judge in a specific scene. It is the real intelligence to decide and solve the problem. According to the above two definitions, the product to be introduced below is also considered as intelligent hardware, except that it only spends 10 yuan on the original LED lights, and completes the transition to intelligence. The project is called U-Beacon, and people can use it to accurately locate indoor commercial premises. In the U-Beacon team's office, the person in charge, Tang Haijun, demonstrated the positioning technology to the author: I saw him pull out his mobile phone, open the APP, point the front camera to the light bulb on the roof, and after a few seconds, the mobile phone Information about the location is displayed. What is the principle of this? Does this light look exactly like an ordinary LED light? The author asked curiously. Haha, this thing is fun, you also look at the front camera of the phone against the light. Tang Haijun said with a smile. After the author did it, the door of a new world was opened. The seemingly ordinary LED lights showed a flashing black line in the phone. Is this the same as the principle of scanning QR codes? The author asked. It can be understood in this way, but our QR code is invisible to the naked eye. This technology is called visible light communication technology. Visible light communication technology, also called LED white light communication technology, the principle of technology is to compile the information to be transmitted into a modulated signal, and attach it to the driving current of the LED lamp by pulse width modulation method, which is beneficial to the ubiquitous light source in the user. The transmitting carrier, when the user enters the lighting area of ​​the luminaire, receives and recognizes the optical signal by the smart phone without adding any hardware, parses out the unique identification information sent by the luminaire, and determines the corresponding location information in the map database by using the acquired identification information. Complete the positioning. However, we have an indoor positioning system for transmission of GPS, WIFI, Bluetooth, etc. in our lives. What is the significance of visible light communication technology? For this question, the answer given by Tang Haijun is this: Nowadays more and more large shopping malls have an area of ​​more than 100,000 square meters. When more and more large indoor spaces appear, we have been supplemented by heavy responsibility. There is a large error in the indoor positioning system. Whether it is GPS or WIFI, or Bluetooth, the technical flaws, especially in terms of accuracy, are very obvious. The positioning accuracy of GPS is 10-100 meters, and it has to be affected by the environment. It needs multi-point positioning and data matching to complete, and the reaction speed is relatively slow. Although the technology of WIFI and Bluetooth is relatively mature, by relying on the principle that the wireless signal of the mobile phone and the WiFi wireless network is attenuated in the air, the intensity of the wireless signal is measured, and the distance of the attenuation is calculated to determine the indoor position, because the wireless signal is attenuated in the air. Affected by the environment inside the building, there is no way to locate the accuracy less than 5 meters, so the positioning is very inaccurate. It is precisely because of these defects of other positioning that visible light communication technology has its existence. LED lights that use visible light communication technology can emit high-speed bright and dark flickering signals that are invisible to the naked eye. These signals can be used not only to transmit information, but also to achieve positioning accuracy of up to 1 meter. In the eyes of the U-Beacon team, this is the ideal solution to the accuracy of positioning. Prior to U-Beacon, the US Bytelight team had completed financing through similar technologies and worked with lighting manufacturers to enter actual production. However, U-Beacon has become a bigger step. They have equipped the 3D 360 real-world map application app for the device. They want to use it to build a mature online community and build an O2O platform. The data is integrated to open up more imagination. So will this LED light be popular? At least the team itself is very confident, and they give two reasons: First, LED lamps and smartphones are hardware with large-scale popularity. According to statistics at the beginning of this year, the total number of mobile Internet users in China reached 838 million; nowadays, large-scale shopping malls require a large number of LED lighting equipment, so users can take out their mobile phones at any time to locate the top lamps; meanwhile, 2013-2015 The year will also be a period of rapid growth in LED lighting penetration. Second, the use of this technology is very simple and cheap. As long as the LED lights are spent 10 yuan per module for simple configuration, the positioning function can be realized without the need for the merchant to replace the equipment. Finally, the author still throws the problem of intelligence to U-Beacon. Most people may think that things like GoogleGlass and Jawbone can be called smart hardware, so they only use U-Beacon positioning technology for 10 dollars. Is the light counted as intelligent hardware? I don't know if it is intelligent hardware. I only know that it can bring convenience to people, and the goal pursued by intelligent hardware is to bring convenience to people's lives. This is enough. Tang Haijun said seriously.