KR960003205A

KR960003205A - Hierarchical Road Traffic Network and Protocol

Info

Publication number: KR960003205A
Application number: KR1019940015697A
Authority: KR
Inventors: 장철
Original assignee: 김광호; 삼성전자 주식회사
Priority date: 1994-06-30
Filing date: 1994-06-30
Publication date: 1996-01-26

Abstract

본 발명에 따른 계층구조의 도로교통 통신망구조는 제1계층및 제2계층도로교통정보 통신망중 하나 이상이 여러개의 교통정보 통신기기들이 공유할 수 있는 유선 또는 무선의 통신선로를 가짐으로써, 전 지역의 교통신호제어장치들을 계층구조의 교통신호정보 데이타 통신망으로 연결함으로써 종합적이고, 신속하고, 정확한 교통상황 감시 및 효율적인 제어가 가능해진다. 또한, 공통선로를 사용할 수 있도록 제안된 통신망 프로토콜은 종합적인 교통관제를 위한 통신 목적을 효과적으로 만족하는 동시에 경제적인 교통신호정보 데이터통신망 처리장치를 간단하고 경제적으로 만들수 있다.In the hierarchical road traffic communication network structure according to the present invention, at least one of the first and second layer road traffic information communication networks has a wired or wireless communication line that can be shared by several traffic information communication devices, and thus, the entire area. By connecting traffic signal controllers in a hierarchical traffic signal information data network, comprehensive, fast and accurate traffic status monitoring and efficient control are possible. In addition, the network protocol proposed to use the common line can satisfy the communication purpose for comprehensive traffic control, and at the same time can make economical traffic signal information data communication network processing device simple and economical.

Description

Hierarchical Road Traffic Network and Protocol

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명에 따른 계층구조의 도로교통 통신망구조의 구성을 나타낸 도면이다.2 is a diagram showing the configuration of a hierarchical road traffic communication network structure according to the present invention.

Claims

In a road traffic data communication network having a hierarchical structure for efficient road traffic control in an automobile road network, at least one of the first and second road traffic information communication networks may be shared by multiple traffic information communication devices. A hierarchical road traffic communication network structure comprising a structure having a wireless communication line.

The road traffic communication network structure of claim 1, further comprising: a plurality of traffic signal devices having at least one input / output function for sensing or controlling traffic flow and having a serial data communication function; A traffic signal controller capable of controlling the traffic signal devices in a jurisdiction according to an instruction of a higher level control system or by itself; A first worm traffic signal information data communication network for exchanging traffic signal information between said traffic signal devices in said jurisdiction and said traffic signal controller; And a second layer traffic signal information data communication network having a data communication network line commonly used by the traffic signal controllers.

3. The hierarchical road traffic communication network structure according to claim 2, wherein in the road traffic communication network structure, a specific traffic signal controller resets traffic signal devices in a corresponding region through a reset line.

A reception mode maintenance step in which the state of data transceivers of all the traffic signal devices (TSDs) maintains a reception mode state having a high impedance before the traffic signal controller (TSC) sends a desired TSD ID; A reception mode conversion step of sending a desired TSD ID by the TSC on a common communication line and converting the TSC ID into a reception mode; A transmission mode conversion step of checking whether all TSDs are their IDs, converting TSDs of the corresponding IDs into transmission modes, and maintaining other TSDs and TSCs in a reception mode; And a receiving mode returning step of transmitting the desired data to the TSC through the common communication line and returning to the receiving mode.

※ Note: The disclosure is based on the initial application.