Vehicle Exhaust Emission Monitoring Device
A technology for automobile exhaust and monitoring devices, applied in sampling devices, color/spectral characteristic measurement, etc., can solve the problem of not considering external air pollution, etc., and achieve the effect of facilitating compliance testing and saving power
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[0017] It should be noted that, in the case of no conflict, the preferred embodiment in the present application and the features in the embodiment can be combined with each other. The present invention will be further described below in conjunction with the accompanying drawings.
[0018] Such as figure 1 As shown, the vehicle exhaust emission monitoring device according to the embodiment of the present invention includes a monitoring terminal and a detection terminal. The monitoring terminal includes a processing unit, and the detection terminal includes: a control unit, a power supply unit and a communication unit respectively connected to the control unit. The control unit adopts STM32F103XX series ARM processor, provides digital-to-analog conversion circuit, and realizes the analog input of the sensor. The digital-to-analog conversion circuit uses ICL7135 to convert the collected analog data into digital data. It is a four-and-a-half-bit double-integral A / D converter, wh...
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