Development And Research Of Intelligent Wireless Led Desk Lamp Illuminance Detection Instrument

Reading lamp is the most commonly used to work and study.With the improvement of living level,the lighting quality of reading lamp,has been paid more and more attentions.The material structure of the human retina determines that we can only identify electromagnetic waves in the visible light band.Using light illuminance sensors to collect and analyze the lamp illumination is an important means to objectively evaluate the quality of the lamp.Based on Android operating system,the illumination detection system for WiFi environment was designed and developed in this thesis.The system is mainly composed of four parts:data acquisition module BH1750FVI,STC89LE54RD microcontroller,WiFi wireless communication module HX-M02,mobile client.Among them,the BH1750FVI is a digital light intensity sensor IC,built-in integrated operational amplifier and digital to analog conversion module ADC,which is responsible for data acquisition and conversion.The system control unit is realized by the single-chip microcomputer with STC89LE54RD as the chip.It is responsible for receiving the specific commands sent by the mobile client through the WiFi,parsing and executing.WiFi module is the wireless data transmission channel between the mobile client and the system control unit.The mobile client provides friendly human-computer interaction interface to display the received data.Through the analysis of program debugging and data,the illuminance detection range of the system is 0?655361ux,at the same time the display resolution is 1lux,linearity is 0.92824,and the relative error is less than 8%.The system realizes the functions of wireless data transmission,display and data export,and the whole conforms to the design standard.