JPH0475768U - - Google Patents

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Publication number
JPH0475768U
JPH0475768U JP11867190U JP11867190U JPH0475768U JP H0475768 U JPH0475768 U JP H0475768U JP 11867190 U JP11867190 U JP 11867190U JP 11867190 U JP11867190 U JP 11867190U JP H0475768 U JPH0475768 U JP H0475768U
Authority
JP
Japan
Prior art keywords
train
circuit
detection
pulses
detection sensor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP11867190U
Other languages
Japanese (ja)
Other versions
JPH0717626Y2 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1990118671U priority Critical patent/JPH0717626Y2/en
Publication of JPH0475768U publication Critical patent/JPH0475768U/ja
Application granted granted Critical
Publication of JPH0717626Y2 publication Critical patent/JPH0717626Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Train Traffic Observation, Control, And Security (AREA)
  • Emergency Alarm Devices (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の送信装置の一実施例を示す
ブロツク図、第２図はこの考案の受信装置の一実
施例を示すブロツク図、第３図はこの考案の動作
を説明するための波形図、第４図はこの考案の送
信装置に用いる各信号用符号化回路の実施例を示
すブロツク図である。 １……レール、２……列車検知センサ、３……
脱落検知センサ、１３……パルス発生器、１４〜
１６……各信号用符号化回路、１７……電圧比較
器、２１……スイツチ制御回路、２２……発振器
、２３……変調回路、２５……電波発信装置、４
０２……ゲート、３１……受信機、３３……復号
回路、３４Ｂ，３４Ｃ，３４Ｄ……符号比較器、
３４Ｅ，３４Ｆ，３４Ｇ……設定器、３９……警
報器。 Fig. 1 is a block diagram showing an embodiment of the transmitting device of this invention, Fig. 2 is a block diagram showing an embodiment of the receiving device of this invention, and Fig. 3 is a waveform diagram for explaining the operation of this invention. 4 are block diagrams showing embodiments of each signal encoding circuit used in the transmitter of this invention. 1...Rail, 2...Train detection sensor, 3...
Falling detection sensor, 13...Pulse generator, 14~
16... Encoding circuit for each signal, 17... Voltage comparator, 21... Switch control circuit, 22... Oscillator, 23... Modulation circuit, 25... Radio wave transmitter, 4
02... Gate, 31... Receiver, 33... Decoding circuit, 34B, 34C, 34D... Code comparator,
34E, 34F, 34G... Setting device, 39... Alarm device.

Claims (1)

【実用新案登録請求の範囲】 Ａ レールに近接して設けられ列車の通過を検知
する列車検知センサと、 Ｂ この列車検知センサがレールの取付姿勢から
脱落したことを検知する脱落検知センサと、 Ｃ これら列車検知センサ及び脱落検知センサの
検知出力により一定個数のクロツクパルスを取出
すゲートと、 Ｄ このゲートによつて取出されたクロツクパル
スを上記各センサ毎に割当た符号化パルスに変換
する符号化回路と、 Ｅ この符号化回路から出力される符号化パルス
によつて一定周波数の信号を断続し、パルス変調
回路を送出する変調回路と、 Ｆ この変調回路から出力されるパルス変調信号
を電波を重畳して送信する電波発信装置と、 Ｇ この電波発信装置から発信された電波を受信
し、上記パルス変調信号を出力する受信機と、 Ｈ この受信機から出力されるパルス変調信号を
符号化されたパルスに復号する復号回路と、 Ｉ この復号回路で復号された符号を、設定した
符号と比較し、一致を検出する論理比較器と、 Ｊ この論理比較器の検出出力によつて動作する
警報器と、 によつて構成した列車接近警報装置。[Scope of Claim for Utility Model Registration] A. A train detection sensor that is installed close to the rail and detects the passage of a train; B. A falling-off detection sensor that detects when this train detection sensor has fallen from the rail mounting position; C. A gate that extracts a certain number of clock pulses based on the detection outputs of these train detection sensors and dropout detection sensors; D An encoding circuit that converts the clock pulses extracted by this gate into encoded pulses assigned to each of the sensors; E A modulation circuit that intermittents a constant frequency signal using coded pulses output from this encoding circuit and sends out a pulse modulation circuit; A radio wave transmitting device that transmits; G a receiver that receives the radio waves transmitted from this radio wave transmitting device and outputs the pulse modulated signal; H converts the pulse modulated signal output from this receiver into encoded pulses; a decoding circuit for decoding; I a logic comparator for comparing the code decoded by this decoding circuit with a set code and detecting a match; J an alarm that operates based on the detection output of this logic comparator; A train approach warning system constructed by
JP1990118671U 1990-11-13 1990-11-13 Train approach warning device Expired - Lifetime JPH0717626Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990118671U JPH0717626Y2 (en) 1990-11-13 1990-11-13 Train approach warning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990118671U JPH0717626Y2 (en) 1990-11-13 1990-11-13 Train approach warning device

Publications (2)

Publication Number Publication Date
JPH0475768U true JPH0475768U (en) 1992-07-02
JPH0717626Y2 JPH0717626Y2 (en) 1995-04-26

Family

ID=31866617

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990118671U Expired - Lifetime JPH0717626Y2 (en) 1990-11-13 1990-11-13 Train approach warning device

Country Status (1)

Country Link
JP (1) JPH0717626Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012171560A (en) * 2011-02-23 2012-09-10 Nippon Signal Co Ltd:The Wheel detector
CN117533368A (en) * 2023-12-21 2024-02-09 通号(西安)轨道交通工业集团有限公司北京分公司 Wheel sensor and falling detection device, method and system thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5337107U (en) * 1976-09-04 1978-04-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5337107U (en) * 1976-09-04 1978-04-01

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012171560A (en) * 2011-02-23 2012-09-10 Nippon Signal Co Ltd:The Wheel detector
CN117533368A (en) * 2023-12-21 2024-02-09 通号(西安)轨道交通工业集团有限公司北京分公司 Wheel sensor and falling detection device, method and system thereof

Also Published As

Publication number Publication date
JPH0717626Y2 (en) 1995-04-26

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term