JPH0271065U

JPH0271065U -

Info

Publication number: JPH0271065U
Application number: JP826088U
Authority: JP
Priority date: 1988-01-26
Filing date: 1988-01-26
Publication date: 1990-05-30

Description

[Brief explanation of drawings]

第１図は、この考案に基いた列車検知器の設置
数及び設置位置を、近接する踏切が３個の場合に
ついて示す概念図、第２図は第１図の踏切に対応
する踏切制御装置の構成を概略的に示すブロツク
図、第３図は内側の踏切の警報駆動手段の構成を
示すブロツク図、第４図は列車位置と各踏切の警
報機の鳴動の時間関係を示すタイムチヤート、第
５図は警報駆動手段の機能をマイクロコンピユー
タで実現する場合の動作手順の一例を示すフロー
チヤートである。第６図は最外側の踏切の制御の
二重化方法の一例を示すブロツク図である。第７
図及び第８図は従来の踏切制御装置の構成を示す
ものであり、第７図は基本的構成を一つの踏切に
ついて示す概念図、第８図は三つの踏切の場合の
構成を示す概念図である。ＲＣＡ，ＲＣＢ，ＲＣＣ…踏切、ＳｕＡ，Ｓｄ
Ｃ…警報開始用列車検知器、ＥＡ，ＥＢ，ＥＣ…
警報終止用列車検知器、ＷＺＡ…警報区間、ＷＤ
Ａ，ＷＤＢ，ＷＤＣ…警報駆動手段、ＬＡ，ＬＢ
，ＬＣ…論理回路、ＤＡ，ＤＢ，ＤＣ…駆動回路
、ＴＢ，ＴＣ…遅延タイマ、ＢＢ，ＢＣ…バツク
アツプ回路、ＷＡ，ＷＢ，ＷＣ…警報機。 Figure 1 is a conceptual diagram showing the number and location of train detectors installed based on this idea for a case where there are three adjacent level crossings, and Figure 2 is a diagram of the level crossing control device corresponding to the level crossing in Figure 1. FIG. 3 is a block diagram showing the structure of the inner level crossing alarm driving means; FIG. 4 is a time chart showing the time relationship between the train position and the sounding of the alarms at each level crossing; FIG. 5 is a flowchart showing an example of the operating procedure when the function of the alarm driving means is realized by a microcomputer. FIG. 6 is a block diagram showing an example of a method for duplicating the control of the outermost level crossing. 7th
8 and 8 show the configuration of a conventional level crossing control device. FIG. 7 is a conceptual diagram showing the basic configuration for one level crossing, and FIG. 8 is a conceptual diagram showing the configuration for three level crossings. It is. RCA, RCB, RCC...Railroad crossing, SuA, Sd
C...Train detector for starting alarm, EA, EB, EC...
Warning termination train detector, WZA...warning section, WD
A, WDB, WDC...Alarm driving means, LA, LB
, LC...logic circuit, DA, DB, DC...drive circuit, TB, TC...delay timer, BB, BC...backup circuit, WA, WB, WC...alarm.

補正平１．６．１５図面の簡単な説明を次のように補正する。明細書第１７頁第１７行目の「踏切が３個の」
を「３個の踏切の」に訂正する。Amendment 1.6.15 Hei 1. The brief description of the drawing is amended as follows. "There are three railroad crossings" on page 17, line 17 of the specification.
is corrected to "of three railroad crossings."

Claims

[Scope of Claim for Utility Model Registration] (a) A train detector for starting a warning is installed at the outermost level crossing among multiple adjacent level crossings, and a train detector for ending the warning is installed at each level crossing, ) At the outermost level crossing, a warning is started based on a detection signal from the warning starting train detector,
and an alarm driving means for terminating the alarm based on a detection signal from the alarm-terminating train detector installed at the same level crossing; and a delay timer that outputs an alarm start signal when a predetermined time corresponding to the minimum train travel time from the outer level crossing alarm start point to the alarm start point of the relevant level crossing has elapsed, and an inverted signal of the output of the delay timer. a backup circuit that outputs a warning start signal when a detection signal from the warning end train detector installed at the outer level crossing satisfies an AND condition; and a backup circuit that outputs a warning start signal based on the delay timer or the warning start signal from the backup circuit. A level crossing control device comprising an alarm drive means comprising a drive circuit that starts an alarm when the alarm is reached and terminates the alarm based on a detection signal from the alarm terminating train detector provided at the railroad crossing. .