Vehicle-mounted OBU abnormal state warning system and method

Abstract

The invention relates to a vehicle-mounted OBU abnormal state warning system and method. The system comprises a high-frequency antenna detection module, an OBU state information acquisition module, aninformation processing module and a voice prompt module, wherein the high-frequency antenna detection module is used for detecting whether a high-frequency antenna signal exists in front of a road inreal time or not during vehicle driving process, the OBU state information acquisition module is used for acquiring a working state signal of a vehicle-mounted OBU, the information processing moduleis used for processing and analyzing information provided by the high-frequency antenna detection module and the OBU state information acquisition module, and the voice prompt module is used for broadcasting abnormalitiesof the OBU working state and reminding a driver and passengers of detecting the OBU. According to the method, the vehicle OBU is detected in advance before ETC transaction and path identification of the vehicle, the driver and passengers are noticed with the working state of the OBU in advance, and the OBU is enabled to be a normal working state during vehicle transaction. Bythe system, the transaction success rate of the OBU vehicle can be effectively improved, the passing rate of an ETC lane is improved, and the ETC vehicle path identification success rate is improved.

Description

technical field [0001] The invention belongs to the technical field of traffic equipment, and in particular relates to a vehicle-mounted OBU abnormal state alarm system and method. Background technique [0002] With the continuous development and progress of science and technology, the application of new technologies in the field of expressway electromechanical toll collection systems is also constantly developing. Users using ETC can quickly pass through the ETC lane set up by the toll station. The application of this technology not only greatly improves the efficiency of expressway toll stations, but also reduces the time for queuing up to pick up the card and pay the toll. Due to the continuous increase in the number of cars in the country, the technical path of the integration and application of various payment methods such as electronic toll collection (ETC) supplemented by license plate image recognition has been developed. [0003] Although the ETC electronic non-par...

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Problems solved by technology

[0003] Although the ETC electronic non-parking quick toll collection technology has been used for many years, the technology is relatively mature, but due to the improper operation of the driver and passengers, the incomplete cognition of the new system, etc., the ETC still has the following defects in the use process: a .Before the driver and passengers enter the ETC lane, there is poor contact between the access card and the on-board OBU, which leads to the failure of the vehicle transaction; b. The ETC vehicle enters the lane and the car follows the car too closely, resulting in the failure of the vehicle transaction; c. Ordinary vehicles mistakenly enter the ETC lane and cause the ETC Reduced traffic rate and related safety hazards; d. ETC antenna failure and adjacent channel interference lead to transaction failure, etc.;

[0004] In the above situation, the relevant technicians have solved the transaction failures caused by ETC adjacent channel interference, vehicles entering by mistake, and following vehicles too close. However, the transaction failures caused by poor OBU contact are mainly due to the This problem has always existed due to the irregular operation of the passengers

With the continuous promotion and development of ETC, similar problems will occur and seriously affect the traffic efficiency of the entire lane.

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