200 thousand LUX band display light intensity sensor RS485 collector | Автомобили и мотоциклы

Product introductionSD2161B sensor is RS485 bus type illuminance sensor, which adopts RS485 interface and standard MODBUS-RTU protocol. It can realize multi-point simultaneous monitoring, networking and remote transmission.The utility model is suitable for various places, and is especially suitable for places such as agricultural sheds and urban lighting.In order to facilitate engineering networking and industrial applications, this module uses the widely used MODBUS-RTU communication protocol, and supports the two development. The user only needs to use any serial communication software according to our communication protocol to realize the inquiry and establishment of the module data.Illuminance can be measured directly by illuminance meter. The illumination unit is lux, lux is English transliteration, also spelled lx. The light uniform illumination of objects, luminous flux in 1 square meters area is 1 lumens, the illuminance of 1 lux. Sometimes in order to make full use of light, often attach a reflecting device on the light source, the luminous flux can get some direction more, to increase the intensity of illumination on the illuminated surface is. Such as car headlights, flashlights, photography lights, etc..The following is the value of various environmental illuminance: unit LuxNight: 0.001 - 0.02; 0.02 - 0.3; cloudy Moonlight: indoor: 5 - 50; 50 - 500; outdoor: cloudy sunny indoor: 100 - 1000; illuminance at noon the sun in summer is about 10*6 times; the required reading books when the illumination: 50 - 60; standard illumination: home video camera 1400.technical parameter1. wiringDirect use of the device's own lead, according to color tips for wiring2. device address settingsThrough software settings, see the communication protocol section.3. displayThe first row shows the values of the illuminance, and the second row shows the values of temperature and humidity.4. communication protocolAll operations or replies to the device are 16 hexadecimal data. Default communication baud rate: 9600,8, N, 1.

 

 

Typical scheme:SD2191B through the RS485 bus networking way, you can extend the communication distance to 1200 meters long, can effectively solve the shortest connection between the shortest distance problem.Below is the RS485 network structure diagram of SD2191B sensor typical illumination monitoring and control based on each SD2191B sensor has a node number, a small system can be placed 1-15 SD2191B sensor. Since each SD2191B sensor is powered by a wide power supply, the whole system can be powered by a bus.