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On board unit embedded secure access module (ESAM) for free stream toll collection and use method thereof

A vehicle-mounted unit and free technology, applied in ticketing equipment, instruments, etc., can solve problems such as slow processing speed, poor scalability, and long command execution time, and achieve the effects of ensuring safety, speeding up processing speed, and improving workability

Inactive Publication Date: 2013-06-12
HUAZHONG UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the DSRC (Dedicated Short Range Communications) national standard GB / T20851-2007 "Dedicated Short Range Communications for Electronic Toll Collection" in China's electronic toll collection system is mainly used in highway electronic tolls in some provinces and cities. Charging, its functions are relatively limited, the scalability is poor, and the processing speed is slow, and each COS (Chip Operating System, on-chip operating system) instruction takes a long time to execute, which cannot meet the application requirements of urban road and bridge free flow electronic toll collection

Method used

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  • On board unit embedded secure access module (ESAM) for free stream toll collection and use method thereof
  • On board unit embedded secure access module (ESAM) for free stream toll collection and use method thereof
  • On board unit embedded secure access module (ESAM) for free stream toll collection and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0183] The OBU-RSU charging model technical solution based on the free flow of urban roads and bridges of embodiment 1 includes the following contents:

[0184] 1. The encoding mechanism of the content exchange of the Beacon Service Table (BST) and the Vehicle Service Table (VST) application layer is compatible with different application modes, including charging transaction mode and audit mode. The new field RSUTransactionMode is used to identify the transaction mode of RSU And supported OBU types, the specific design is shown in the table below:

[0185] RSUTransactionMode format definition

[0186]

[0187] 2. Using frame merging technology and RSU to deal with the concurrent processing mechanism of multiple OBUs, a dedicated service primitive and transaction process of charging mode are designed to better meet the application requirements of urban road and bridge free flow charging mode. The detailed frame format is described as follows :

[0188] (1) INITIALISATION_r...

Embodiment 2

[0318] The present invention is based on the OBU-RSU inspection mode embodiment 2 of urban road and bridge free flow inspection application and specifically includes the following contents:

[0319] 1. The encoding mechanism of the content exchange of the Beacon Service Table (BST) and the Vehicle Service Table (VST) application layer is compatible with different application modes, including charging transaction mode and audit mode. The new field RSUTransactionMode is used to identify the transaction mode of RSU And supported OBU types, the specific design is shown in the table below:

[0320] RSUTransactionMode format definition

[0321]

[0322] The difference between Class A electronic tags, Class B and Class C electronic tags:

[0323] (1) Basic type (Class A): single-chip active electronic label.

[0324] (2) Compatible type (Type B): double-chip electronic label (same as the national standard GB / T20851-2007).

[0325] (3) Extended type (Category C): double-chip ele...

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Abstract

The invention provides an on board unit embedded secure access module (ESAM) for free stream toll collection and a use method of the on board unit ESAM for the free stream toll collection. An arborescence hierarchical structure is adopted by a file structure of the ESAM, a root node of the ESAM is a master control file (MF), and a child node of the ESAM comprises a system key file, a system information file, a system keep file, a free stream electronic toll collection application directory file DF03, and a traffic management application directory file DF04. The use method of the on board unit ESAM for the free stream toll collection comprises a city road bridge free stream electronic toll collection process and a free stream electronic inspection process, wherein each toll collection process comprises a process of a bidirectional safety certificate in concurrent operation which is carried out by a road side unit on an on board unit. The board unit ESAM for the free stream toll collection and the use method of the on board unit ESAM for the free stream toll collection are good in performance, and can satisfy concurrent processing of a plurality of on board units (OBUs) of city road bridge free stream toll collection.

Description

technical field [0001] The invention relates to an OBU-ESAM security module technical solution based on urban road and bridge free-flow electronic toll collection in the application field of urban intelligent traffic. Background technique [0002] At present, the urban road and bridge free-flow tolling technology is one of the most advanced road and bridge tolling technologies in the world. It is a fast electronic toll collection system without any toll roadblocks. This kind of charging system has been quite mature in some developed countries, but due to the great difference between China's application market and foreign application markets, there will be certain risks in directly using the existing international mature technology; It is still in the research stage and there are no application cases yet. [0003] Electronic Toll Collection (ETC) is an automatic toll collection system for roads, bridges and tunnels that is being developed and promoted internationally. It is...

Claims

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Application Information

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IPC IPC(8): G07B15/06
Inventor 周胜利曾致远彭宗奎杨文丽陈正明黎育红郑承志白玉洁桂猛石世壮
Owner HUAZHONG UNIV OF SCI & TECH
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