Device for transmitting environmental parameters by using VGA (Video Graphics Array) video data line

The invention belongs to the technical field of sensor transmission, and particularly relates to a device for transmitting environmental parameters by using a VGA video data line. The device is composed of a data acquisition end, a data transmission line and a data receiving end, the data acquisition end comprises an image sensor, an environment sensor, an FPGA device and a DDR memory, the FPGA device receives video image data output by the image sensor and environment sensor data, the DDR memory is used for caching, a time sequence generator module is designed according to output video resolution and frame rate, and the time sequence generator module is connected with the data transmission line. The data receiving end is used for generating an output horizontal synchronizing signal, an output field synchronizing signal and an output pixel clock, outputting a video signal in the validity period of the horizontal synchronizing signal and the field synchronizing signal and outputting sensor data in the blanking