Application of the hottest led remote control in s

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Application of LED remote control in street lamps, parking lots and indoor lighting

Abstract: easy remote control is one of the advantages of LED in general lighting applications. This application note introduces the remote control scheme of the street lamp lighting system, which can realize the control of the lighting system through power line transmission or wireless transmission

led provides greater design flexibility for dimming and changing lighting color. It is very suitable for building lighting, indoor lighting and dimming, high-energy street lamps and outdoor lighting. In such applications, lighting can be remotely controlled

these applications can bring great value-added space to users. However, in order to succeed in the market, the cost of upgrading lighting facilities to LED technology must be controlled at the lowest level. Undoubtedly, the scheme that can reuse the existing infrastructure must also be the most popular scheme in the market

in remote control LED lighting applications, the infrastructure with the highest product upgrade cost is to control LED lighting wiring. Fortunately, two technologies can be used to save this expensive upgrade cost, which mainly depends on the overall level of the company: LED lights can be controlled through wireless links or through existing power lines using PLC technology

plc technology can support long-distance communication, but it may cause some problems when the circuit breaker or transformer of the AC line does not allow the free transmission of data flow. Although this problem does not exist in wireless communication, the communication frequency is limited to the unauthorized band, and the wireless communication distance is also limited. In some cases, the best solution can be achieved by combining the two technologies: power line communication without transformer barrier, and wireless connection to support cross transformer design

main design requirements for remote control LED lighting include:

communication range. This depends on the specific application. For the indoor application of the residence, the communication range of about 30m can meet the requirements, and the street lamp needs a communication range of several kilometers

low power consumption. An important selling point of LED is high energy efficiency. When the lighting is turned off and only the communication line remains in an effective state, it is necessary to ensure the lowest power consumption of the LED lamp, which is very critical for the design

communication rate. Some lighting applications require only a low communication rate (several kbps) to meet the requirements of dimming control and fault status reading. However, building lighting sometimes requires very high data rates, even up to 100kbps. Wall washing lamp is a typical example of this kind of application. It controls multiple lighting lamps through a bus and needs to constantly change the light color

low cost. Most lighting applications have similar requirements

typical wireless control lighting system block diagram

typical PLC control lighting system block diagram. For complete information about the LED lighting scheme recommended by Maxim,

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the remote control lighting system usually includes a product controller from some foreign manufacturers, which can be a discrete unit or integrated in another IC. In most cases, a basic microcontroller is enough to meet the requirements, unless the system uses complex communication protocols and complex stacks (such as ZigBee). The controller is responsible for processing communication protocol decoding, LED driver dimming signal, reading fault status and other functions, and is used to control the lighting effect of lights (such as theater dimming)

when wireless communication is adopted for lighting applications, MAX1473 receiver and max1472 transmitter provided by Maxim can be selected. These products work in 300MHz to 450MHz unauthorized band, and the communication distance can reach 30m to 50m in indoor environment. The maxq610 microcontroller provides all the necessary functions mentioned above at a very low cost

for PLC applications, Maxim's solutions include max2991 analog front end (AFE) and max2990 baseband processors. These devices constitute a complete set of power line transmit/receive chipsets, which can transmit data on 10km power lines at a data rate of up to 100kbps. This transmission distance makes it very suitable for street lighting systems. Max2990 integrates a microcontroller with PWM output to control PWM dimming input of LED driver. This function eliminates other circuits that generate dimming signals

g3-plc is a trademark of Maxim integrated products, Inc

ieee is the registered service mark of the American Society of electrical and electronics engineers. (end)

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