JPS6112200U

JPS6112200U - Vehicle approach monitoring device

Info

Publication number: JPS6112200U
Application number: JP9593084U
Authority: JP
Inventors: 昭森本
Original assignee: 株式会社明電舎
Priority date: 1984-06-26
Filing date: 1984-06-26
Publication date: 1986-01-24

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の実施例を示す回路図、第２図は第１の
検出部、第２の検出部よりの出力波形を示す波形図であ
る。Ｓ１・・・第３の検出部を兼ねた第１の検出部、Ｓ２・
・・第４の検出部を兼ねた第２の検出部、Ｓ５・・・第
５の検出部、１・・・進行方向判断部、２・・・車速演
算部、３・・・長さ演算部、４・・・車輛判断部、５・
・・警告発生部。FIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIG. 2 is a waveform diagram showing output waveforms from a first detection section and a second detection section. S1: a first detection section that also serves as a third detection section, S2.
...Second detection section that also serves as the fourth detection section, S5...Fifth detection section, 1.. Traveling direction determination section, 2.. Vehicle speed calculation section, 3.. Length calculation Section, 4... Vehicle judgment section, 5.
...Warning section.

Claims

[Scope of utility model registration request]

A first detecting section and a second detecting section for detecting vehicle passage, which are provided near an entrance where vehicles are prohibited and spaced apart from each other along the length direction of the road; a traveling direction determining section that determines the traveling direction of the vehicle based on a signal from the second detecting section; and a traveling direction determining section that determines the traveling direction of the vehicle based on the signal from the second detecting section; a third detection section and a fourth detection section for passage detection; a vehicle speed calculation unit that calculates the travel time of the vehicle between these detection units from the signals from the third detection unit and the fourth detection unit, and calculates the vehicle speed based on this travel time and the distance between the detection units; a fifth detection unit for detecting vehicle passage provided nearby;
a length calculation section that calculates the passing time of the vehicle to the fifth detection section from the signal from the fifth detection section and calculates the length of the vehicle based on the passing time and the signal from the vehicle speed calculation section; Based on the output signals from the traveling direction determining section, the vehicle speed calculating section, and the length calculating section, it is determined whether or not a vehicle is attempting to enter the entrance, and when it is determined that the vehicle is attempting to enter, a warning command is issued. A vehicle approach monitoring device comprising a vehicle determination section and a warning generating section that issues a warning in response to a warning command from the vehicle determination section.