JP3317364B2 - On-board equipment - Google Patents
On-board equipmentInfo
- Publication number
- JP3317364B2 JP3317364B2 JP35332892A JP35332892A JP3317364B2 JP 3317364 B2 JP3317364 B2 JP 3317364B2 JP 35332892 A JP35332892 A JP 35332892A JP 35332892 A JP35332892 A JP 35332892A JP 3317364 B2 JP3317364 B2 JP 3317364B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- current
- reference current
- circuit
- track
- 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.)
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- Train Traffic Observation, Control, And Security (AREA)
- Selective Calling Equipment (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、移動体に搭載される車
上装置に関し、更に詳しくは、基準電流レベルを移動体
位置に応じて変化させ、軌道回路の異常を確実に検知す
る技術に係る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle device mounted on a moving body, and more particularly, to a technique for changing a reference current level in accordance with a position of the moving body to reliably detect an abnormality in a track circuit. Related.
【０００２】[0002]
【従来の技術】車上装置を含む移動体制御装置の一例と
して自動列車停止装置（以下、ＡＴＳ装置と称する。）
があり、ＡＴＳ装置の一例として、ＡＴＳ−ＳＰ形が知
られている。ＡＴＳ−ＳＰ形は、ＡＴＳ−Ｓ形をインテ
リジェント化したものであり、軌道回路の条件を取り入
れ、軌道回路が正常である場合において、列車が停止信
号を現示する信号機までに停止できるかどうかの判断を
自動的に行なうものである。軌道回路の条件を取り入れ
ているのは、軌道回路電流を列車検知や踏切に支障が発
生した場合の異常処理信号として利用しているからであ
る。2. Description of the Related Art As an example of a mobile control device including an on-board device, an automatic train stop device (hereinafter, referred to as an ATS device).
ATS-SP type is known as an example of the ATS device. The ATS-SP type is an intelligent version of the ATS-S type, incorporating the conditions of the track circuit and, when the track circuit is normal, whether or not the train can be stopped by the traffic signal indicating the stop signal. The judgment is made automatically. The reason for adopting the condition of the track circuit is that the track circuit current is used as an abnormality processing signal when trouble occurs in train detection or railroad crossing.
【０００３】図３は従来の車上装置の構成を示すブロッ
ク図である。図はＡＴＳ−ＳＰ形に適用した車上装置を
示し、１は軌道、２は車上装置、３は信号機、４は地上
装置、５は中継器、６は地上子、７は移動体である。FIG. 3 is a block diagram showing the configuration of a conventional on-board device. The figure shows an on-board device applied to the ATS-SP type, 1 is a track, 2 is an on-board device, 3 is a traffic light, 4 is a ground device, 5 is a repeater, 6 is a ground child, and 7 is a mobile unit. .
【０００４】軌道１は、複数の閉塞区間（軌道回路）１
１、１２・・・に区画されている。軌道回路１１は、軌
道回路送信器１１１が進路前方の一端Ｐ１に設けられて
いる。軌道回路送信器１１１は、周波数ｆ1 の軌道電流
Ｉs1を軌道回路１１に供給する。軌道回路１１は、移動
体７の車軸により軌間短絡される。軌道回路１２も同様
に構成され、図示しない軌道回路送信器１２１が周波数
ｆ2 の軌道電流Ｉs2を軌道回路１２に供給する。The track 1 includes a plurality of closed sections (track circuits) 1
Are divided into 1, 12,.... In the track circuit 11, a track circuit transmitter 111 is provided at one end P1 ahead of the course. The orbit circuit transmitter 111 supplies the orbit current Is1 having the frequency f1 to the orbit circuit 11. The track circuit 11 is short-circuited between the gauges by the axle of the moving body 7. The track circuit 12 is similarly configured, and a track circuit transmitter 121 (not shown) supplies a track current Is2 having a frequency f2 to the track circuit 12.
【０００５】車上装置２は、受信回路２６と、判定部２
７とを含んでいる。受信回路２６は、受信アンテナ２６
１と、信号処理回路２６２とを有している。受信アンテ
ナ２６１は、軌道回路１１に流れる軌道電流Ｉs1を受信
する。信号処理回路２６２は、軌道電流Ｉs1に基づく電
流検出信号Ｓ1 を出力する。判定部２７は、一定の値に
設定された基準電流レベルＩk を有し、電流検出信号Ｓ
1 が基準電流レベルＩk より低下したときに軌道回路が
異常であると判定し、判定信号Ｓ4 を出力する。[0005] The on-vehicle device 2 includes a receiving circuit 26 and a judging unit 2.
7 is included. The receiving circuit 26 includes a receiving antenna 26
1 and a signal processing circuit 262. The receiving antenna 261 receives the orbital current Is1 flowing through the orbital circuit 11. The signal processing circuit 262 outputs a current detection signal S1 based on the orbital current Is1. The determination unit 27 has a reference current level Ik set to a constant value, and
When 1 falls below the reference current level Ik, the track circuit is determined to be abnormal, and a determination signal S4 is output.
【０００６】図４は従来の車上装置の軌道回路状態判定
動作を説明する図である。図において、Ｓ1 は軌道回路
が正常である場合の電流検出信号である。横軸は送信点
Ｐ1から移動体位置Ｐx までの距離であり、縦軸は移動
体位置Ｐx で受信される軌道電流Ｉs1の電流レベルであ
る。以下、図３を参照しながら、図４を説明する。FIG. 4 is a diagram for explaining a track circuit state determination operation of a conventional on-board device. In the figure, S1 is a current detection signal when the track circuit is normal. The horizontal axis is the distance from the transmission point P1 to the moving body position Px, and the vertical axis is the current level of the orbital current Is1 received at the moving body position Px. Hereinafter, FIG. 4 will be described with reference to FIG.
【０００７】図示したように、軌道電流Ｉs1は、軌間の
リ−ク電流により送信端Ｐ1 から離れるほど減衰し、他
端Ｐ2 で最小となる。判定部２７の基準電流レベルＩk
は、軌道回路１１の全範囲で異常判定を確実にするため
に、電流検出信号Ｓ1 の最小値よりも小さい値に設定さ
れている。判定部２７は、雨天等で軌道１のリ−ク電流
が増大し、軌道電流Ｉs1が基準電流レベルＩk 以下に減
少した場合に異常と判定し、判定信号Ｓ4 を出力する。
また、踏切で支障事故が発生し、その異常処置として送
信点近傍の軌間短絡により軌道電流Ｉs1が減少させられ
た場合も異常と判定し、判定信号Ｓ4 を出力する。異常
と判定した判定信号Ｓ4 は、フェールセーフの観点か
ら、移動体７に対する停止信号となる。As shown in the figure, the orbital current Is1 attenuates farther from the transmitting end P1 due to the leak current between the gauges, and becomes minimum at the other end P2. Reference current level Ik of determination unit 27
Is set to a value smaller than the minimum value of the current detection signal S1 in order to reliably determine abnormality in the entire range of the track circuit 11. The judging section 27 judges that there is an abnormality when the leak current of the track 1 increases in rainy weather or the like and the track current Is1 decreases below the reference current level Ik, and outputs a judgment signal S4.
Also, when a trouble occurs at a railroad crossing and the track current Is1 is reduced by a short circuit between rails near the transmission point as an abnormal measure, it is determined that the track current is abnormal, and the determination signal S4 is output. The determination signal S4 determined to be abnormal is a stop signal for the moving body 7 from the viewpoint of fail-safe.
【０００８】次に車上装置２のＡＴＳ機能について、図
３を参照しながら説明する。地上装置４は、信号機３か
らの現示に従った入力信号Ｓ5 が入力され、入力信号Ｓ
5 に従った制御信号Ｓ6 を出力する。制御信号Ｓ6 は、
中継器５を介して地上子６から車上装置２に伝送され
る。地上子６は、信号機３の手前６００ｍの位置に設け
られている。地上装置４は、例えば入力信号Ｓ5 が停止
信号（赤）の場合は、移動体７が地上子６上を通過する
ときに、警報信号を含む制御信号Ｓ6 を車上装置２に伝
送する。Next, the ATS function of the on-board device 2 will be described with reference to FIG. The ground equipment 4 receives the input signal S5 according to the present signal from the traffic signal 3, and receives the input signal S5.
5 to output a control signal S6. The control signal S6 is
The signal is transmitted from the ground carrier 6 to the on-board device 2 via the repeater 5. The ground child 6 is provided at a position 600 m before the traffic light 3. For example, when the input signal S5 is a stop signal (red), the ground device 4 transmits a control signal S6 including an alarm signal to the on-vehicle device 2 when the moving body 7 passes over the ground child 6.
【０００９】車上装置２は、地上子６から制御信号Ｓ6
が供給され、停止に至るまでの速度照査パタ−ンを設定
し、移動体７の速度が速度照査パタ−ンを超えていると
きにブレ−キをかけるように制御する。The on-board device 2 receives a control signal S6 from the ground child 6.
Is supplied, and a speed check pattern up to the stop is set. When the speed of the moving body 7 exceeds the speed check pattern, control is performed so as to apply a brake.
【００１０】[0010]
【発明が解決しようとする課題】しかしながら、従来の
車上装置は、図４に示すように、基準電流レベルＩk が
電流検出信号Ｓ1 よりも小さい値に設定されているの
で、移動体が送信端Ｐ1 に近い位置にあるときに軌道回
路の異常が発生した場合は、参照符号ｃで示すように、
電流検出信号Ｓ1 が基準電流レベルＩk 以下とならず、
軌道回路の異常検知ができない。このため、踏切で支障
事故が発生した場合に、地上側で軌道回路電流を減少さ
せて異常処理をしたにもかかわらず、車上側でこれを検
知できず、最悪の場合、衝突事故を発生するおそれがあ
る。However, in the conventional on-vehicle apparatus, as shown in FIG. 4, the reference current level Ik is set to a value smaller than the current detection signal S1, so that the moving body is connected to the transmitting end. If a track circuit abnormality occurs at a position close to P1, as indicated by reference numeral c,
When the current detection signal S1 does not fall below the reference current level Ik,
Track circuit abnormality cannot be detected. For this reason, in the event of an accident at a railroad crossing, even though the track circuit current has been reduced on the ground side and abnormal processing has been performed, this cannot be detected on the vehicle side, and in the worst case, a collision accident will occur There is a risk.
【００１１】そこで、本発明の課題は、上述した問題点
を解決し、基準電流レベルを移動体位置に応じて変化さ
せ、軌道回路の各位置において、軌道回路の異常を確実
に検知し得る車上装置を提供することである。Accordingly, an object of the present invention is to solve the above-mentioned problems, to change the reference current level according to the position of the moving body, and to reliably detect an abnormality of the track circuit at each position of the track circuit. It is to provide the above equipment.
【００１２】[0012]
【課題を解決するための手段】上述する課題解決のた
め、本発明は、受信回路と、基準電流設定部と、判定部
とを含み、軌道上を走行する移動体に搭載される車上装
置であって、前記受信回路は、受信アンテナと、信号処
理回路とを有し、前記受信アンテナが軌道回路に流れる
軌道電流を受信し、前記信号処理回路が前記軌道電流に
基づく電流検出信号を出力する回路であり、前記基準電
流設定部は、前記軌道回路内の移動体位置と受信される
軌道電流との関係に基づく基準電流デ−タを有し、走行
距離信号が入力され、前記走行距離信号から移動体位置
を割り出し、その移動体位置に対応する基準電流を前記
基準電流デ−タから読み出し、基準電流信号として出力
するものであり、前記判定部は、前記電流検出信号と前
記基準電流信号とを比較し、軌道回路の状態を判定す
る。In order to solve the above-mentioned problems, the present invention provides an on-vehicle device which includes a receiving circuit, a reference current setting unit, and a determination unit and is mounted on a moving body traveling on a track. Wherein the receiving circuit has a receiving antenna and a signal processing circuit, the receiving antenna receives an orbital current flowing through a track circuit, and the signal processing circuit outputs a current detection signal based on the orbital current. The reference current setting unit has reference current data based on a relationship between a position of a moving object in the track circuit and a received track current, a mileage signal is input, and the mileage signal is input. The position of the moving object is determined from the signal, a reference current corresponding to the position of the moving object is read from the reference current data, and is output as a reference current signal. The determination unit includes the current detection signal and the reference current. Signal And compare, it determines the state of the track circuit.
【００１３】[0013]
【作用】受信回路は、受信アンテナが軌道回路に流れる
軌道電流を受信し、信号処理回路が軌道電流に基づく電
流検出信号を出力し、基準電流設定部は、軌道回路内の
移動体位置と受信される軌道電流との関係に基づく基準
電流デ−タを有し、走行距離信号が入力され、走行距離
信号から移動体位置の位置を割り出し、その移動体位置
に対応する基準電流を基準電流デ−タから読み出し、基
準電流信号として出力するものであり、判定部は、電流
検出信号と基準電流信号とを比較し、軌道回路の状態を
判定するから、基準電流レベルを移動体位置に応じて変
化させ、軌道回路の各位置において、軌道電流のレベル
が一定の減衰率以上低下したときに軌道回路の異常を確
実に検知できる。In the receiving circuit, the receiving antenna receives the orbital current flowing in the track circuit, the signal processing circuit outputs a current detection signal based on the orbital current, and the reference current setting section determines the position of the moving object in the track circuit and the reception. And the reference current data based on the relationship with the orbital current to be input, a travel distance signal is input, the position of the moving body position is determined from the travel distance signal, and the reference current corresponding to the moving body position is used as the reference current data. The determination unit compares the current detection signal with the reference current signal to determine the state of the track circuit, and determines the reference current level according to the position of the moving object. By changing the level of the track circuit, it is possible to reliably detect an abnormality in the track circuit when the level of the track current decreases at a certain rate or more at each position of the track circuit.
【００１４】[0014]
【実施例】図１は本発明に係る車上装置の構成を示すブ
ロック図である。図は車上装置をＡＴＳーＳＰ形に適用
した場合を示し、図３と参照符号は同一性ある構成部分
を示している。FIG. 1 is a block diagram showing the configuration of an on-board device according to the present invention. The figure shows a case where the on-board device is applied to the ATS-SP type, and the reference numerals in FIG. 3 indicate the same components.
【００１５】車上装置２は、受信回路２１と、基準電流
設定部２２と、判定部２３とを含んでいる。受信回路２
１は、受信アンテナ２１１と、信号処理回路２１２とを
有している。受信アンテナ２１１は、軌道回路１１に流
れる軌道電流Ｉs1を受信する。信号処理回路２１２は、
軌道電流Ｉs1に基づく電流検出信号Ｓ1 を出力する。基
準電流設定部２２は、軌道回路１１内の移動体位置Ｐx
と受信される軌道電流Ｉs1との関係に基づく基準電流デ
−タＩk を有している。基準電流デ−タＩk は、軌道回
路１１を試験走行して実測した軌道電流Ｉs1から求める
か、または計算によって求められる。基準電流設定部２
２は、走行距離信号Ｓ2 が入力され、走行距離信号Ｓ2
から移動体位置Ｐx を割り出し、その移動体位置Ｐx に
対応する基準電流を基準電流デ−タＩk から読み出し、
基準電流信号Ｓ3 として出力する。具体的には、軌道回
路１１の長さＬ１がデ−タとして与えられ、移動体７が
位置Ｐ2 から所定の距離を移動する度にその移動体位置
Ｐx の基準電流デ−タＩkに更新し、基準電流信号Ｓ3
を出力する。走行距離信号Ｓ2 は、タコジェネレータ２
２１により車輪の回転数を検出して得ている。判定部２
３は、電流検出信号Ｓ1 と基準電流信号Ｓ3 とを比較し
て軌道回路１１の状態を判定する。電流検出信号Ｓ1 が
基準電流信号Ｓ3 より小さくなったときに異常と判定
し、判定信号Ｓ4 を出力する。The on-vehicle device 2 includes a receiving circuit 21, a reference current setting unit 22, and a determination unit 23. Receiving circuit 2
1 has a receiving antenna 211 and a signal processing circuit 212. The receiving antenna 211 receives the orbital current Is1 flowing through the orbital circuit 11. The signal processing circuit 212
A current detection signal S1 based on the orbital current Is1 is output. The reference current setting unit 22 determines the position Px of the moving object in the track circuit 11.
And the reference current data Ik based on the relationship with the received orbital current Is1. The reference current data Ik is obtained from the track current Is1 measured by running the track circuit 11 on a test basis or by calculation. Reference current setting unit 2
2 receives the mileage signal S2 and outputs the mileage signal S2.
, And a reference current corresponding to the moving body position Px is read from the reference current data Ik.
It is output as a reference current signal S3. More specifically, the length L1 of the track circuit 11 is given as data, and each time the moving body 7 moves a predetermined distance from the position P2, it is updated to the reference current data Ik at the moving body position Px. , Reference current signal S3
Is output. The traveling distance signal S2 is
21 is obtained by detecting the number of rotations of the wheels. Judgment unit 2
3 judges the state of the track circuit 11 by comparing the current detection signal S1 with the reference current signal S3. When the current detection signal S1 becomes smaller than the reference current signal S3, it is determined that there is an abnormality, and a determination signal S4 is output.
【００１６】図２は本発明に係る車上装置の軌道回路状
態判定動作を説明する図である。図において、Ｓ1 は電
流検出信号、Ｓ3 は基準電流信号である。以下、図１を
参照しながら、図２を作用と共に説明する。FIG. 2 is a diagram for explaining the track circuit state determination operation of the on-board device according to the present invention. In the figure, S1 is a current detection signal, and S3 is a reference current signal. Hereinafter, FIG. 2 will be described together with the operation with reference to FIG.
【００１７】電流検出信号Ｓ1 は、軌道回路１１に異常
がない場合に受信される軌道電流Ｉs1を示している。基
準電流信号Ｓ3 は、電流検出信号Ｓ1 の１／３〜１／４
となるように設定されている。基準電流信号Ｓ3 は、複
数の基準電流デ−タＩk0、Ｉk1、Ｉk2・・・により近似
されている。移動体７が位置Ｐ2 にあるときは、基準電
流デ−タＩk0となる。移動体７が距離△Ｘだけ移動し、
移動体位置Ｐx1にあると判定されたときは、基準電流デ
−タＩk1に更新される。以後、移動体７が距離△Ｘ移動
する度に基準電流デ−タＩk2、Ｉk3・・・に更新され
る。The current detection signal S1 indicates the orbital current Is1 received when there is no abnormality in the orbital circuit 11. The reference current signal S3 is 1/3 to 1/4 of the current detection signal S1.
It is set to be. The reference current signal S3 is approximated by a plurality of reference current data Ik0, Ik1, Ik2,. When the moving body 7 is at the position P2, the reference current data is Ik0. The moving body 7 moves by a distance ΔX,
When it is determined that the vehicle is at the moving body position Px1, the reference current data Ik1 is updated. Thereafter, the reference current data Ik2, Ik3,... Are updated every time the moving body 7 moves by the distance ΔX.
【００１８】以上述べたように、受信回路２１は、受信
アンテナ２１１が軌道回路１１に流れる軌道電流Ｉs1を
受信し、信号処理回路２１２が軌道電流Ｉs1に基づく電
流検出信号Ｓ1 を出力し、基準電流設定部２２は、軌道
回路１１内の移動体位置Ｐxと受信される軌道電流Ｉs1
との関係に基づく基準電流デ−タＩk を有し、走行距離
信号Ｓ2 が入力され、走行距離信号Ｓ2 から移動体位置
Ｐx を割り出し、その移動体位置Ｐx に対応する基準電
流を基準電流デ−タＩk から読み出し、基準電流信号Ｓ
3 として出力するものであり、判定部２３は、電流検出
信号Ｓ1 と基準電流信号Ｓ3 とを比較し、軌道回路の状
態を判定するから、基準電流レベルＩkを移動体位置Ｐx
に応じて変化させ、軌道回路１１の各位置において、
軌道電流Ｉs1のレベルが一定の減衰率以上低下したとき
に軌道回路の異常を確実に検知できる。例えば、参照符
号ｃで示すように、雨天等で軌道のリ−ク電流が増大
し、軌道電流Ｉs1が基準電流レベルＩk 以下に減少した
場合は、軌道回路１１の各位置において異常を判定し、
判定信号Ｓ4 を出力する。また、参照符号ｄで示すよう
に、移動体７が移動体位置Ｐx3を通過した時に踏切で支
障事故が発生し、その異常処置として送信点近傍の軌間
短絡により軌道電流Ｉs1が減少させられた場合も、基準
電流信号Ｓ3 が基準電流デ−タＩk3に更新されているの
で、軌道電流Ｉs1が基準電流デ−タＩk0以下とならない
場合でも異常を判定し、判定信号Ｓ4 を出力する。As described above, in the receiving circuit 21, the receiving antenna 211 receives the orbital current Is1 flowing through the orbital circuit 11, the signal processing circuit 212 outputs the current detection signal S1 based on the orbital current Is1, and the reference current The setting unit 22 determines the position Px of the moving object in the track circuit 11 and the received track current Is1.
, A traveling distance signal S2 is input, a moving body position Px is determined from the traveling distance signal S2, and a reference current corresponding to the moving body position Px is converted to a reference current data. From the reference current signal Ik.
The determination unit 23 compares the current detection signal S1 with the reference current signal S3 to determine the state of the track circuit, and therefore determines the reference current level Ik as the moving object position Px
And at each position of the track circuit 11,
When the level of the orbital current Is1 decreases by a predetermined attenuation rate or more, an abnormality in the orbital circuit can be reliably detected. For example, as indicated by reference numeral c, when the leak current of the orbit increases in rainy weather or the like and the orbit current Is1 decreases below the reference current level Ik, an abnormality is determined at each position of the orbit circuit 11,
The judgment signal S4 is output. Further, as indicated by reference numeral d, when the moving body 7 passes through the moving body position Px3, an obstacle accident occurs at a railroad crossing, and as an abnormal treatment, the track current Is1 is reduced due to a short-circuit between gauges near the transmission point. Also, since the reference current signal S3 has been updated to the reference current data Ik3, even if the orbital current Is1 does not become lower than the reference current data Ik0, an abnormality is determined and a determination signal S4 is output.
【００１９】他の軌道回路も同様に構成されている。隣
接する軌道回路は、軌道電流Ｉs の周波数が異なってい
る。このため、車上装置２は、軌道電流Ｉs から走行し
ている軌道回路を識別することができ、しかも識別した
軌道回路の長さはデ−タとして所有しているから、各軌
道回路において同様の異常判定ができる。The other track circuits have the same configuration. Adjacent track circuits have different frequencies of the track current Is. For this reason, the on-board device 2 can identify the running track circuit from the track current Is, and since the length of the identified track circuit is possessed as data, the same applies to each track circuit. Can be determined.
【００２０】更に、図１の実施例では、ＡＴＳ機能を発
揮させるため、地上子６から車上装置２に制御信号Ｓ6
が伝送される。地上子６は送信点Ｐ1 から距離Ｌ２を隔
てた位置に設けられているため、車上装置２は制御信号
Ｓ6 を受信した時に、移動体位置の補正が可能となる。
このため、基準電流デ−タＩk を適切なものに設定で
き、異常判定を更に確実なものとすることができる。Further, in the embodiment shown in FIG. 1, the control signal S6 is transmitted from the ground member 6 to the on-vehicle device 2 in order to exert the ATS function.
Is transmitted. Since the grounding element 6 is provided at a distance L2 from the transmission point P1, the on-board device 2 can correct the position of the moving body when receiving the control signal S6.
For this reason, the reference current data Ik can be set to an appropriate value, and the abnormality determination can be made more reliable.
【００２１】上述の実施例では、基準電流設定部２２
は、処理を容易にするため、移動体７が一定距離移動す
る度に基準電流デ−タＩk を更新するように構成されて
いるが、基準電流デ−タＩk を大量に記憶し、走行距離
信号Ｓ2 が入力される度にその移動体位置Ｐx に対応す
る基準電流を基準電流デ−タＩk から読み出し、基準電
流信号Ｓ3 として出力するように構成してもよい。ま
た、走行距離信号Ｓ2 は、移動体７の移動速度から求め
ることもできる。In the above embodiment, the reference current setting section 22
Is configured so that the reference current data Ik is updated every time the moving body 7 moves a predetermined distance in order to facilitate the processing. Each time the signal S2 is input, a reference current corresponding to the moving body position Px may be read from the reference current data Ik and output as the reference current signal S3. Further, the traveling distance signal S2 can be obtained from the moving speed of the moving body 7.
【００２２】[0022]
【発明の効果】以上述べたように、本発明は、受信回路
は、受信アンテナが軌道回路に流れる軌道電流を受信
し、信号処理回路が軌道電流に基づく電流検出信号を出
力し、基準電流設定部は、軌道回路内の移動体位置と受
信される軌道電流との関係に基づく基準電流デ−タを有
し、走行距離信号が入力され、走行距離信号から移動体
位置の位置を割り出し、その移動体位置に対応する基準
電流を基準電流デ−タから読み出し、基準電流信号とし
て出力するものであり、判定部は、電流検出信号と基準
電流信号とを比較し、軌道回路の状態を判定するから、
基準電流レベルを移動体の位置に応じて変化させ、軌道
回路の各位置において、軌道回路の異常を確実に検知し
得る車上装置を提供できる。As described above, according to the present invention, in the receiving circuit, the receiving antenna receives the orbital current flowing through the track circuit, the signal processing circuit outputs the current detection signal based on the track current, and the reference current setting. The unit has reference current data based on the relationship between the position of the moving object in the track circuit and the received orbital current, receives a mileage signal, determines the position of the moving object position from the mileage signal, The reference current corresponding to the position of the moving body is read from the reference current data and output as a reference current signal. The determination unit compares the current detection signal with the reference current signal to determine the state of the track circuit. From
It is possible to provide an on-board device capable of changing the reference current level according to the position of the moving body and reliably detecting an abnormality of the track circuit at each position of the track circuit.
【図１】本発明に係る車上装置の構成を示すブロック図
である。FIG. 1 is a block diagram showing a configuration of an on-board device according to the present invention.
【図２】本発明に係る車上装置の軌道回路状態判定動作
を説明する図である。FIG. 2 is a diagram illustrating a track circuit state determination operation of the on-board device according to the present invention.
【図３】従来の車上装置の構成を示すブロック図であ
る。FIG. 3 is a block diagram showing a configuration of a conventional on-board device.
【図４】従来の車上装置の軌道回路状態判定動作を説明
する図である。FIG. 4 is a diagram illustrating a track circuit state determination operation of a conventional on-board device.
１ 軌道 １１、１２ 軌道回路 １１１ 軌道回路送信器 ２ 車上装置 ２１ 受信回路 ２１１ 受信アンテナ ２１２ 信号処理回路 ２２ 基準電流設定部 ２３ 判定部 ７ 移動体 Ｓ1 電流検出信号 Ｓ2 走行距離信号 Ｓ3 基準電流信号 Ｓ4 判定信号 Ｉk 基準電流デ−タ Ｉs1 軌道電流 REFERENCE SIGNS LIST 1 track 11, 12 track circuit 111 track circuit transmitter 2 on-board device 21 receiving circuit 211 receiving antenna 212 signal processing circuit 22 reference current setting unit 23 determination unit 7 moving object S1 current detection signal S2 mileage signal S3 reference current signal S4 Judgment signal Ik Reference current data Is1 Orbital current
フロントページの続き (72)発明者 太刀川 寛 埼玉県浦和市上木崎１丁目13番８号 日 本信号株式会社 与野事業所内 (72)発明者 三枝 秀隆 埼玉県浦和市上木崎１丁目13番８号 日 本信号株式会社 与野事業所内 (72)発明者 斉藤 安雄 埼玉県浦和市上木崎１丁目13番８号 日 本信号株式会社 与野事業所内 (56)参考文献 特開 平２−197459（ＪＰ，Ａ) 特開 昭57−75503（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B61L 1/18 B61L 23/04 Continuation of the front page (72) Inventor Hiroshi Tachikawa 1-13-8 Kamikizaki, Urawa-shi, Saitama Nihon Signal Co., Ltd. Yono Works (72) Inventor Hidetaka Saegusa 1-13-8 Kamikizaki, Urawa-shi, Saitama In the Yono Works of Nippon Signal Co., Ltd. (72) Inventor Yasuo Saito 1-13-8 Kamikizaki, Urawa-shi, Saitama Pref. In the Yono Works of Nihon Signal Co., Ltd. (56) References JP-A-2-19759 (JP, A JP-A-57-75503 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B61L 1/18 B61L 23/04
Claims (1)
とを含み、軌道上を走行する移動体に搭載される車上装
置であって、 前記受信回路は、受信アンテナと、信号処理回路とを有
し、前記受信アンテナが軌道回路に流れる軌道電流を受
信し、前記信号処理回路が前記軌道電流に基づく電流検
出信号を出力する回路であり、 前記基準電流設定部は、前記軌道回路内の移動体位置と
受信される軌道電流との関係に基づく基準電流デ−タを
有し、走行距離信号が入力され、前記走行距離信号から
移動体位置を割り出し、その移動体位置に対応する基準
電流を前記基準電流デ−タから読み出し、基準電流信号
として出力するものであり、 前記判定部は、前記電流検出信号と前記基準電流信号と
を比較し、前記軌道回路の状態を判定する車上装置。1. An on-board device including a receiving circuit, a reference current setting unit, and a determining unit, mounted on a moving body traveling on a track, wherein the receiving circuit includes a receiving antenna, a signal processing unit, A circuit, wherein the receiving antenna receives an orbital current flowing through a track circuit, and the signal processing circuit outputs a current detection signal based on the orbital current. The vehicle has reference current data based on the relationship between the position of the moving object in the vehicle and the received orbital current, receives a traveling distance signal, calculates the moving object position from the traveling distance signal, and corresponds to the moving object position. A reference current is read from the reference current data and output as a reference current signal. The determination unit compares the current detection signal with the reference current signal to determine a state of the track circuit. Upper device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35332892A JP3317364B2 (en) | 1992-12-11 | 1992-12-11 | On-board equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35332892A JP3317364B2 (en) | 1992-12-11 | 1992-12-11 | On-board equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06171509A JPH06171509A (en) | 1994-06-21 |
| JP3317364B2 true JP3317364B2 (en) | 2002-08-26 |
Family
ID=18430109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35332892A Expired - Fee Related JP3317364B2 (en) | 1992-12-11 | 1992-12-11 | On-board equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3317364B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4943977B2 (en) * | 2007-09-11 | 2012-05-30 | 学校法人日本大学 | Track circuit management apparatus and track circuit management method |
| KR101634148B1 (en) * | 2014-03-24 | 2016-06-29 | 한국철도기술연구원 | Rail breakage detecting device and method thereof |
| CN105172842B (en) * | 2015-09-02 | 2018-02-09 | 湖南中车时代通信信号有限公司 | A kind of train is driven to calibration method, equipment and system by station track |
| JP2018063225A (en) * | 2016-10-14 | 2018-04-19 | 公益財団法人鉄道総合技術研究所 | Abrupt advance point extraction processing method and abrupt advance point extraction processing system of waveform data |
-
1992
- 1992-12-11 JP JP35332892A patent/JP3317364B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06171509A (en) | 1994-06-21 |
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