Design of Subway Passenger Guidance System Based on Array Resistance Pressure Sensor

In recent years, with the continuous growth of passenger flow, there are different degrees of congestion and unreasonable utilization of car resources in subway cars. In order to solve the above problems, this paper uses the method of displaying the congestion degree to the passengers, so that the passengers can know the congestion situation of the arriving subway cars in advance, so as to select the cars reasonably. Based on this, a subway car passenger guidance system based on array resistance pressure sensor is designed.Firstly, this paper determines the overall structure of the system, and also describes the work flow of the whole system; secondly, according to the hardware part of the pressure sensing part of the subsystem, this paper makes a more detailed design, determines the sensors selected in this paper, designs the structure of the pressure collection array and the wiring mode, and designs the hardware circuit of this part; Finally, the workflow of congestion display is introduced. The application of this system will be of great significance to improve the comfort of passengers, make rational use of car resources and ease the congestion of car so as to reduce the security risks.