Readable storage medium, route identification system, vehicle-mounted unit and transaction method

Abstract

The present invention relates to a readable storage medium, a path identification system, a vehicle-mounted unit, and a transaction method between the vehicle-mounted unit and the roadside unit, wherein, after the vehicle-mounted unit wakes up, it performs: in the first stage, receives the information sent by the roadside unit BST signal, and reply the VST signal to the roadside unit after waiting for the first preset time; in the second stage after the first stage, receive the BST signal sent by the roadside unit, and send the VST signal to the roadside unit after waiting for the second preset time The roadside unit replies to the VST signal, and judges whether its own uplink frequency matches the downlink frequency of the roadside unit, and if so, conducts a transaction with the roadside unit; after the transaction is completed or in the third stage after the second stage, receiving The BST signal sent by the roadside unit, and reply the VST signal to the roadside unit after waiting for the third preset time. Implementing the technical solution of the present invention can save energy consumption, avoid reflective transactions and reverse transactions, and increase the success rate of one transaction.

Description

technical field [0001] The invention relates to the field of intelligent transportation (Intelligent Transportation System, ITS), in particular to a readable storage medium, a path identification system, a vehicle-mounted unit and a transaction method. Background technique [0002] In the field of intelligent transportation applications, the path recognition system will become more and more common, so the importance of the identification card is self-evident. During the practical process, the card often wakes up too early, and when the signal is returned, the antenna cannot receive it, and the uplink of the card does not match the downlink of the antenna, which will easily cause unnecessary power consumption for a long period of time after the card wakes up, and even wait until it enters a stable area. Sometimes it enters dormancy again, which causes the transaction to fail, and the power consumption is serious, so that the success rate is not high at one time, and the life ...

AI Technical Summary

Problems solved by technology

During the practical process, the card often wakes up too early, and when the signal is returned, the antenna cannot receive it, and the uplink of the card does not match the downlink of the antenna, which will easily cause unnecessary power consumption for a long period of time after the card wakes up, and even wait until it enters a stable area. Sometimes it enters dormancy, which causes the transaction to fail, and the power consumption is serious, so that the success rate is not high, and the life is short, resulting in incomplete charging, which is an embarrassing scene that the owner does not recognize

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