Portable receiver for train approaching pre-warning system
A train approaching and portable technology, applied in transmission systems, signal indicators on vehicles, railway car body components, etc., can solve the problem of lack of mutual communication devices, etc. Small volume effect
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[0018] see figure 1 , is a schematic diagram of the vehicle-mounted machine. The vehicle-mounted machine includes a driving data acquisition box 11, which is connected with several sensors for collecting the driving data of the train, such as vehicle speed, mileage mark, etc.; the data conversion platform 12 is connected to the data acquisition box. The data collected by the data acquisition box 11 must be strictly isolated, so the effect of the data conversion platform 12 is to isolate the driving data acquisition box 11 and other equipment. The data conversion platform 12 includes a microprocessor and a storage unit for storing driving data. The device is used to control the work of the data conversion platform 12; the encoding unit 13 is connected to the data conversion platform 12, and the driving data is carried out to POCSAG encoding; Modulate, power amplify and receive the radio frequency signal of the alarm data of the ground terminal equipment to demodulate; the alar...
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