Luo Wenzheng: Chief Engineer of Sichuan Xinli Light Source Co., Ltd., Secretary General of Chengdu Semiconductor Lighting Engineering Center.
The standard is missing, the company can not form economies of scale
China Lighting Network: What breakthroughs have your company made in the research and development of semiconductor lighting technology?
Luo Wenzheng, the chief engineer of Xinli Light Source: The application of Xinli Light Source into high-power semiconductor lighting is relatively early (at the end of 2003). The industry involved is relatively wide and there are many project cases. We have accumulated rich experience in field application, from LED phosphors, LED lighting, LED cooling and LED driving have their own unique technical characteristics, forming independent intellectual property rights, currently forming more than 50 patents. More than 40 cases of road lighting, tunnel lighting, subway lighting, office lighting and other venue lighting projects have made a useful attempt to promote the promotion of semiconductor lighting application technology in our country.
China Lighting Network: The lack of LED lighting standards, what difficulties does your company bring to the production and sales of LED products?
Luo Wenzheng, the chief engineer of Xinli Light Source: Because there is no LED standard, and many customers lack the knowledge of LED lighting source, most of them use the requirements of traditional light source to measure LED lighting source, such as shape and size. The variety of requirements has resulted in a wide variety of product production, low production efficiency, and the inability to form economies of scale.
Because there is no LED lighting standard, the quality of the LED industry is uneven, and the gap is very large. At present, the price of high-quality LED lighting products is higher than that of traditional lighting products, and the initial input cost is high. Therefore, many small enterprises use many low-cost and low-quality devices to increase the attractiveness to customers in order to squeeze into the market. . Because there is no LED lighting standard, many customers do not have objective standards. Most of them listen to the manufacturer's energy saving and environmental protection theory and price comparison and decide whether to buy. Many of these cases have caused many inferior LED lighting products to flood the market, and the use effect has greatly impacted customer confidence. The final conclusion is that LED lighting is still immature, which has greatly contributed to the promotion of many excellent manufacturers including Xinli Light Source. Impact.
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What is 2.4g wireless module?
2.4g line module operating frequency in the range of 24400-2484mhz, can communicate through the scanning protocol, air rate up to 1Mbps, output power up to +4dBm, the module has the advantages of low power consumption, cost-effective. Movingcomm's current 2.4g antenna modules are: IOT04, IOT05, IOT09, IOT18, IOT60, etc. Users can choose a variety of modules with a transmission distance of 50-500 meters according to cost considerations.
Second, the role of 2.4g wireless module
Function 1, for the formation of a star topology wireless communication network, and must be a multi-point star topology, some extraordinary places need wireless communication. On the one hand, the transmitting and receiving module is cheap, and the cost of forming the star topology is relatively low. On the other hand, the transmitting and receiving module can adopt the modular design, which is small in size, easy to use and easy to integrate. For the wireless network with low communication speed and close distance, the transmitting and receiving module is very practical.
Function 2, for wireless multi-channel (parallel) control. Such as complex remote-controlled robots, some places require multi-channel (parallel) control. One method is to use the receiving module to directly connect to the decoder, and then connect to the relays and other electronic components to drive the subsequent controlled object; the other method is to use the receiving module to connect to the single chip microcomputer, and after the data is disposed of, the single chip microcomputer is connected to the relays and other electronic components to drive the subsequent controlled object. Usually a pair of transmitting and receiving modules can achieve up to six parallel wireless control, if the required number of channels is greater than six, you can use multiple pairs of transmitting and receiving modules, and work at the same time to meet the actual needs.
Function 3, used for general serial port, RS232 antenna data transmission, there are usually many control instruments and equipment using serial port, and communication with these devices must meet the requirements of serial port. In some extraordinary places, when the industrial control site must use the antenna transmission mode, it is natural to choose the transmitting and receiving modules mentioned in this article, but it must be explained here that to use this communication mode, the corresponding software must be prepared at the transmitting end and the receiving end respectively to achieve the conversion of file formats, in order to achieve the purpose of wireless communication, if the communication system is full-duplex. It can be achieved by using two pairs of transmitting and receiving modules, working simultaneously.
Third, 2.4g wireless module application field
2.4G wireless module is widely used in wireless health sports products, wireless mouse and keyboard, product information push, wireless remote sensing, wireless ranging system, alarm security system, smart home, toy control, tire pressure monitoring and other fields. With the 2.4G wireless module, all the whole house wireless smart home can be linked together, you can control all the smart home devices through the link of the network, and then you can control the switch of all the whole house wireless home, adjust the brightness of the lamp, adjust the rise and fall of the curtain, etc., through the continuous innovation of technology, The whole house wireless smart home can be controlled by a small white robot voice, can be controlled by a smart scene panel, can be controlled by sensors and so on.
Four, 2.4g wireless module how to choose antenna
In general, the 2.4g wireless module requires an impedance of 50 ohms, a red wire used with 2.4g, a 2.4g folded rod antenna, a 2.4g gold-plated straight head rod antenna, a 2.4g gold-plated elbow rod antenna, and a 2.4g small suction cup antenna. These antennas are special antennas designed for 2.4g wireless communication system, antenna standing wave ratio performance is good, small size, clever structure, easy installation, stable performance, with good anti-vibration and aging ability.
2.4G Router Module,M2 Wifi Module,2.4 Ghz Wifi Module,Mini Wifi Module
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