RFID-based electronic bus station board device

Abstract

The invention belongs to the technical field of a public transport management device and system, relates to an RFID-based electronic bus station board device, and especially relates to an electronic device based on an RFID communication technology, for realizing data communication between a bus and an electronic station board and displaying arrival information to waiting passengers. The device comprises an MSP430 single-chip microcomputer, an RFID integrated module, a GPRS / 3G communication module, a display output interface and a connection circuit board. The MSP430 single-chip microcomputer controls operation of the device and finishes data transmission and processing among an RFID module, a communication module and the display output interface; the RFID integrated module is in charge of communicating with a bus-mounted RFID module, receiving arrival information from a vehicle-mounted module, or writing an arrival record in the vehicle-mounted module; the GPRS / 3G communication module, as a device optional member, realizes communication with a remote data server through a GPRS or 3G signals for obtaining the arrival information; and the device provides serial signal output interfaces of two modes, i.e., RS-232 and RS-485 for providing display signals or providing data input for an industrial control computer.

Description

technical field [0001] The invention relates to an RFID-based electronic bus stop board device, in particular to an electronic device that realizes data communication between a bus vehicle and an electronic bus stop board based on RFID communication technology and can display arrival information to waiting passengers. It belongs to the technical field of public traffic management equipment and systems. Background technique [0002] The electronic bus stop sign refers to the sign of the bus in the form of an electronic display screen. Through the electronic screen, you can see the operation status of the next bus or even all the buses on the line, that is, which station has a bus and which station has no bus. , Estimated time to arrive at this station, crowding of people on board, whether there is a breakdown of the car and other information. It integrates computer, communication, electronic map and modern control technology, and it is one of the symbols of urban public tran...

AI Technical Summary

Problems solved by technology

[0009] The use of "3G" technology can certainly achieve real-time / on-time positioning of vehicles, but on fixed bus routes, this redundant function does not bring benefits to the entire system, and may even cause trouble

At the same time, there is overlap between communication peak hours and passenger transport peak hours, and the adverse consequences of information transmission failure due to communication network congestion are also the greatest

[0010] (3) Construction and maintenance costs are too high

The operation of the electronic station sign system in operation is completely dependent on the public wireless network, and the inbound and outbound data traffic is too high, resulting in high daily operating costs

At the same time, the high cost makes it a luxury to set up electronic stop signs in remote sites, which ultimately leads to the limitation of the entire scope of action

In areas with poor wireless communication signals, the use of electronic stop signs is greatly restricted

Images