Intelligent LED indoor lighting system based on ZigBee module
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- Source: Dongyang Information Network
Summary: What is the sexual maturity of ZigBee, Wi-Fi and other wireless communication technologies? The picture period makes LED indoor lighting "smart" a reality. ”After the LED intelligent control system receives the environmental information through the front-end remote sensing, and transmits it wirelessly, the ZigBee module accepts the wireless signal and issues instructions to the LED lamps to achieve wireless control.
Source: High-tech LED
ZigBee, Wi-Fi and other wireless communication technologies are mature. What is the picture period? LED indoor lighting "smart" becomes a reality. Friends can not imagine the picture: the owner returns home at night to open the door, the LED lighting in the living room will automatically start and automatically adjust to the most suitable color temperature according to the indoor light. When the host enters the bedroom, the LED lights in the living room are automatically turned off, and the bedroom lights are automatically adjusted to the reading mode; when you are resting, the LED lights are automatically turned off.
"You are no longer a picture in a science fiction movie , nor is your friend's real life." Said Tang Hao, deputy manager of the marketing department of Murata Electronics Trading (Shenzhen) Co., Ltd. (hereinafter referred to as "Murata Electronics"). The intelligent control system of Zhao cannot enter the final modulation phase, and software development cannot be completed. After the upgrade is completed, it will be fully launched to the market.
The definition of "intelligent control" is the self- regulation technology of LED lamps without human intervention. In short, it is impossible. The touch of a button and the adjustment of LED lights are clearly excluded from the "smart". . In addition to the sensitivity, low power consumption, and stability of the control system, how to use the simplest operation to give users the most comfortable feeling is a big issue that buyers are more concerned about.
According to Tang Hao, this set of wireless network protocols specifically for LED indoor lighting systems mainly uses ZigBee for short distance transmission during deceleration. The main characteristics of this network protocol are low power consumption, low cost, low transmission bandwidth, support for a large number of nodes, Supporting network topology, low complexity, fast, reliable, security and other characteristics are being adopted by too many intelligent control companies.
According to the reporter's understanding, 433 is one of the more systems currently adopted by intelligent control enterprises. The 433 system is relatively inexpensive, but you cannot equip your physical transmission with unified software, and it is easy for each company to develop a major compatibility issue. Together, the 433 system has a low frequency band and is susceptible to signal interference.
"After testing, my friends found that it is impossible for a vacuum cleaner or a hair dryer to cause interference to the 433 signal. All of them resolutely abandoned the development of the 433 system." Tang Hao said, "The physical bottom layer higher than IEEE5002.15.4 can not pass the write The software under ZigBee network protocol realizes more stable intelligent control. "
After the LED intelligent control system receives the environmental information through the front-end remote sensing, and transmits it wirelessly, the ZigBee module accepts the wireless signal to issue instructions to the LED lamps to finally achieve wireless control. In terms of remote sensing, according to the reporter, there are many control laws based on sensing elements including human body infrared sensors, vibration or shock sensors, light control sensors, temperature and humidity sensors, etc. The human body's infrared and vibration sensors are frequently used in LED intelligent control systems, which can not be aimed at the field of indoor home and commercial lighting.
"Friends are conceiving to add solid sensing to the entire smart home system, but friends are still investigating the scope of solid identification." Tang Hao said that in addition to CO2, friends hope to include formaldehyde, acetaldehyde, gas and other solid detection. Realize automatic alarm through cooperation with intelligent security .
When the reporter asked about the system being placed on a tablet or computer and non-local memory, Tang Hao said that it is impossible for the integrity of LED lighting to rely on the gateway to remove the signal, even if the smarthome software application is installed, it will not affect the application of the mobile phone or computer. At present, it is impossible to develop the standard control software of Google Android system for mobile phones, and the embedded webpage control can be entered by logging in the IP address and entering the username and password. It is impossible that Murata already has control interface technology, and the development of the interface for the Apple 45ISO system is slowed down. The control interface is very simple, and one-click control such as on, off and color temperature can be realized without clicking.
In order to take care of the operation of the elderly and children, Murata Electronics has also developed a touch control panel in the system. Clicking the panel can also achieve the integrity control of the LED lamps. "It is impossible for customers to have personalized control, and friends may not be able to develop control software separately, but the development cycle depends on the actual requirements of customers." Tang Hao said.
For the control interface of the tablet computer, Murata Electronics has designed 4 sets of scene modes for meeting guests, rest, etc., and can achieve one-click control without clicking the relevant buttons. "My friend implements IFTTT's interface design concept and is upgrading his friend's interface again." Tang Hao said.
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