The carbon dioxide detector uses a combination of a single-chip MSP430 and a new type of gas sensor. A non-heating semiconductor gas sensor with low power consumption is used to collect and convert the carbon dioxide concentration into electrical signals, and then the corresponding data processing is performed through the MSP430, and the sensitivity of the instrument is corrected through software to improve the reliability of the operation of the carbon dioxide detector. Terminal Fender,Tug Boat Bumpers,Tug Boat Rubber Dock,Tugboat Special Fenders Zhejiang Hengbang Rubber Products Co., Ltd. , https://www.hengbang-rubber.com
Software Design Procedure The CO2 detector software uses a functional modular design consisting of a main program and four subroutine modules. The main program completes the initialization, system self-test and sub-module call; the data acquisition and A/D conversion sub-module automatically completes the signal acquisition and enters the MSP430A/D port, and the data processing subroutine completes the processing of the data collected by the A/D port ( Including the voltage size, frequency parameter processing); liquid crystal display sub-module completes the software driver, concentration display of the liquid crystal module; interrupt sub-module to complete a variety of interrupt signal processing, such as the CO2 concentration exceeds the standard to generate an interrupt signal to drive the motor work.
Sensitivity correction The CO2 detector converts carbon dioxide concentration into electrical signals via sensors. In the measurement process, the sensitivity of the sensor will decrease with the increase of the use time and the instability of the power supply voltage of the instrument, thus affecting the measurement accuracy. Therefore, the sensitivity of the sensor must be corrected. As the CO2 detector is subject to many interference signals, if hardware circuit compensation is used, new interference will inevitably be introduced. Taking into account comprehensively, a software method is used to correct the sensitivity.
Carbon Dioxide Detector utilizes MSP430 with low power consumption and on-chip peripherals as the main control chip to detect carbon dioxide concentration, making the instrument have LCD display and drive motor output mode, which can automatically adjust indoor carbon dioxide concentration, real-time detection, real-time improvement of indoor air The role of quality, in addition, through the software to correct the sensitivity of the detector, to ensure the accuracy of the measurement of carbon dioxide concentration. Carbon dioxide detector can also expand its use, such as measuring the concentration of indoor toxic gases CO, formaldehyde, etc., can also be in the detection of indoor humidity residential indicators, based on this display time to make it more powerful.