JPH01104859U - - Google Patents
Info
- Publication number
- JPH01104859U JPH01104859U JP20106687U JP20106687U JPH01104859U JP H01104859 U JPH01104859 U JP H01104859U JP 20106687 U JP20106687 U JP 20106687U JP 20106687 U JP20106687 U JP 20106687U JP H01104859 U JPH01104859 U JP H01104859U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- track
- train
- level
- local
- 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
Links
- 238000005070 sampling Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000012212 insulator Substances 0.000 description 1
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
Description
第１図はこの考案の一実施例を示すブロツク図
、第２図は矩形波に変換された軌道信号および局
部信号の波形を示す図、第３図は従来の装置を示
す図である。
１……軌道、２……軌道絶縁装置、４……軌道
リレー、１１……フイルタ回路、１２，１４……
シユミツト回路、１３……サンプリング回路、１
５……サンプリング値計数管理回路、１６……レ
ベル判定回路。
FIG. 1 is a block diagram showing an embodiment of this invention, FIG. 2 is a diagram showing the waveforms of an orbital signal and a local signal converted into rectangular waves, and FIG. 3 is a diagram showing a conventional device. 1... Track, 2... Track insulator, 4... Track relay, 11... Filter circuit, 12, 14...
Schmitt circuit, 13...Sampling circuit, 1
5... Sampling value count management circuit, 16... Level judgment circuit.
Claims (1)
準信号を区分した軌道回路の一端に供給したとき
軌道回路の他端から得られる軌道信号との位相差
および軌道信号の電圧に基づき列車の存在を検知
する列車検知器において、局部信号を矩形波に交
換する第１の変換器と、軌道信号を矩形波に変換
する第２の変換器と、軌道信号をサンプリングし
て局部信号が「１」レベルのときの軌道信号レベ
ルのサンプリングデータと局部信号が「０」レベ
ルのときの軌道信号レベルのサンプリングデータ
とが区分された軌道に列車が存在しないときのデ
ータから所定値以上変化したとき出力信号を発生
する検出器とを備えたことを特徴とする列車検知
器。 The presence of a train is detected based on the phase difference between the local signal used as a signal detection reference and the track signal obtained from the other end of the track circuit when this reference signal is supplied to one end of the divided track circuit, and the voltage of the track signal. In the train detector to be detected, a first converter converts the local signal into a rectangular wave, a second converter converts the track signal into a rectangular wave, and samples the track signal so that the local signal is at "1" level. When the sampling data of the track signal level when the local signal is at the "0" level and the sampling data of the track signal level when the local signal is at the "0" level change by more than a predetermined value from the data when there is no train on the divided track, the output signal is output. A train detector characterized in that it is equipped with a detector that generates a train.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20106687U JPH0618854Y2 (en) | 1987-12-29 | 1987-12-29 | Track circuit receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20106687U JPH0618854Y2 (en) | 1987-12-29 | 1987-12-29 | Track circuit receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01104859U true JPH01104859U (en) | 1989-07-14 |
| JPH0618854Y2 JPH0618854Y2 (en) | 1994-05-18 |
Family
ID=31491444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20106687U Expired - Lifetime JPH0618854Y2 (en) | 1987-12-29 | 1987-12-29 | Track circuit receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0618854Y2 (en) |
-
1987
- 1987-12-29 JP JP20106687U patent/JPH0618854Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0618854Y2 (en) | 1994-05-18 |
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