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Programmable interface of roadside unit in ETC (electronic toll collection) system and implementation method of programmable interface

A technology of roadside unit and programming interface, which is applied in the direction of program control devices, instruments, ticketing equipment, etc., can solve the problems of inflexibility, low data integration, slow application process speed, etc., achieve less communication time and improve communication efficiency Effect

Inactive Publication Date: 2015-03-18
AEROSPACE INFORMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantages of the integrated interface and transparent transmission interface of the above-mentioned RSU are: the integrated interface can only be aimed at a specific application, which is not flexible enough, and the change process can only be resolved through re-negotiation with the manufacturer
The transparent transmission interface transmits the data of some functional frames, the data integration is low, and the influence of factors such as physical port communication and synchronization leads to the slow speed of the entire application process

Method used

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  • Programmable interface of roadside unit in ETC (electronic toll collection) system and implementation method of programmable interface
  • Programmable interface of roadside unit in ETC (electronic toll collection) system and implementation method of programmable interface
  • Programmable interface of roadside unit in ETC (electronic toll collection) system and implementation method of programmable interface

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Embodiment 1

[0023] Embodiments of the Invention The programmable interface of the RSU provided by the embodiments of the present invention has the advantages of transparent transmission interface flexibility, high integration of integrated interfaces, and less communication time. Using the above programmable interface, users can flexibly customize the transaction process using the programming language supported by RSU, and users do not need to change the original ETC firmware interface when using the custom extended transaction process.

[0024] The structure diagram of RSU in an ETC system provided by this embodiment is as follows figure 1 Shown, including: scheduling kernel, transparent transmission interface, integrated interface and programmable interface. Among them, the scheduling kernel can be a customized real-time operating system, or a self-written scheduling program. This module is the core component of the RSU and governs the application of other modules. Transparent transmission...

Embodiment 2

[0037] The communication processing process between the scheduling kernel of the RSU and the logical communication processing module in the programmable interface provided by this embodiment is as follows: image 3 As shown, including the following process:

[0038] When the dispatch core receives an external command or internal logic message, it will process the above external command or internal logic message accordingly. When the above external command or internal logic message needs to be processed by the programmable interface, the dispatch core communicates through logic The channel sends a primitive message to the programmable interface, and the primitive message carries relevant information about the above external command or internal logic message.

[0039] When the logic communication processing module in the programmable interface receives the above primitive message, it will generate a corresponding primitive response event, which will be completed by other sub-modules i...

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Abstract

An embodiment of the invention provides a programmable interface of a roadside unit in an ETC (electronic toll collection) system and an implementation method of the programmable interface. The interface comprises a logic communication processing module, a code loading module, a code execution module and a code debugging module. The logic communication processing module performs logic communication with a schedule kernel of the roadside unit through a logic communication channel, and a user defined code transmitted from the schedule kernel through the logic communication channel is transmitted to the code loading module; an execution result of the user defined code transmitted from the code execution module is transmitted to the schedule kernel of the roadside unit; the code loading module loads the user defined code to be executed and performs validation on the user defined code. The programmable interface of the RSU (roadside unit) has the advantages of flexibility of a transparent transmission interface as well as high integration and less communication time of an integrated interface, and users can define a transaction process with programming languages supported by the RSU and the like by themselves.

Description

Technical field [0001] The invention relates to the technical field of vehicle toll management, in particular to a programmable interface of a roadside unit in an ETC (Electronic Toll Collection, electronic non-stop toll collection) system and an implementation method thereof. Background technique [0002] The ETC system is an automatic electronic toll collection system that is mainly researched and promoted internationally. It is suitable for vehicle toll collection solutions in highways and bridges and tunnels with heavy traffic. OBU (On-Board Unit, on-board unit) is a standard accessory of the ETC system, which is used to install on the front windshield of the vehicle. When the vehicle passes the ETC lane, the OBU communicates with the RSU (Roadside Unit, roadside unit) and other equipment , ETC charges can be completed without parking. Thereby increasing the speed of car traffic and effectively solving the problem of traffic jams. The capacity of the toll channel of this to...

Claims

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Application Information

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IPC IPC(8): G06F9/44G07B15/06
Inventor 李镇城刘洋
Owner AEROSPACE INFORMATION
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