JP3065268B2 - Track control method of track circuit and railroad crossing control method including the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling a track circuit and a method for controlling a level crossing including the method.

[0002]

2. Description of the Related Art Conventional level crossing control including block control of a track circuit will be described with reference to FIG. In the figure,
Reference numeral 1a denotes a track circuit. The track circuit 1a is usually constituted by an insulated track circuit for the purpose of avoiding signal interference. That is, in the track circuit 1a insulated by the rail insulator, block sections T1 to Tn of a predetermined block length are formed as block boundaries X1 to Xn where the insulator is located. Block traffic signals L1 to Ln are installed at the block boundaries X1 to Xn of the block sections T1 to Tn. Also, before and after (inside and outside) the block boundaries X1 to Xn of the block sections T1 to Tn, track circuit transmitting units S1 to Sn and track circuit receiving units R1 to Rn are provided. A railroad crossing 3 is provided in the block section T1.

In the block section T3, Rhs is a level crossing start point control receiving section, Shs is a track crossing start point control track circuit transmitting section, and in the block section T1, Rhe is a level crossing end point control receiving section, and She is a level crossing end point. The control track circuit transmission unit,
Kh is a railroad crossing control logic unit. D1 to Dn are concepts of the level of the track circuit signal flowing on the rail, and are high at the transmission point and low at the reception point.

In the above-described track circuit 1a, track circuit signals D1 to Dn are transmitted from transmission units S1 to Sn from the front in the traveling direction to the rear in the direction opposite to the traveling direction of the train. Conversely, the receiving units R1 to Rn are provided at the entry end of the train, and receive track circuit signals D1 to Dn to drive a track relay (not shown). For example, when the train enters the block section T1, the axle short-circuits between the rails, the reception input level decreases, the track relay is restored, and the train is detected. Upon detecting the train, the receiver R1 sets the signal control of the block signal L1 in the block section T1 to "red" and presents a stop signal to the subsequent train. At the same time, it notifies the adjacent block section T2 that the signal indication is "red". Similarly, the block section T2 knows the "red" indication of T1, indicates "yellow" on the traffic light L2, and notifies the block section T3 that the indication of the block section T2 is "yellow". In this way, the rear track circuit 1a sequentially displays a high-speed signal. In order to perform such multiple display control of traffic signals, it is necessary to transmit the train position information of the front track circuit along the track along the signal cables C1 to Cn. Faster, more versatile presentations require more and more cables.

On the other hand, the railroad crossing control functions by performing independent train detection separately from such block control. That is, the control of the circuit breaker and the like of the level crossing 3 is performed, for example, outside the level crossing 3 at a distance of 600 m or more, by the level crossing control logic unit Kh and the level crossing starting point control receiving unit Rhs and the level crossing starting point control track circuit transmitting unit S
hs to detect the train and perform start-start control, and to detect the train passing through the railroad crossing end point control receiving section Rhe and the railroad crossing end point control track circuit transmitting section She to perform the end point control. Do. At this time, the railroad crossing starting point control receiving unit Rhs and the railroad crossing control logic unit Kh transmit independent train detection information via the signal cable E4. These controls are controlled uniformly regardless of the train speed. Therefore, in an overcrowded state of the train schedule, an unidentified level crossing will appear, causing a great obstacle to road traffic.

As a solution to the cause of such traffic congestion on the road,
There is a fixed time control method that detects the train speed. For this purpose, it is necessary to take in the signal indications of the block outside traffic signals L2, L3, L4 into the level crossing control logic Kh, so that the signal cables E1 to E3 are necessary to take in this information. Assuming higher train speeds, more remote blocking conditions are required.

[0007]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems and does not require a large number of signal cables and does not require independent train detection for level crossing control. An object of the present invention is to provide a circuit block control method and a railroad crossing control method including the same.

[0008]

According to a first aspect of the present invention, there is provided a track control method for a track circuit, comprising: setting a plurality of block sections that do not insulate the track circuit;
A block signal is provided at the block boundary of these block sections, and a transmission repeater including a transmission section, a reception section and a logic section is provided for each block section, and the position information of the preceding train / subsequent train is transmitted from the transmission section of these transmission repeaters. The track circuit signal is output to adjacent track circuits both before and after the traveling direction of the train, and the output track circuit signal is received by the receiver of the transmission repeater. In addition to performing train detection at the section, the speed signal is indicated according to the order in which the block signals are to be blocked, and the block control is performed.

According to a second aspect of the present invention, there is provided a railroad crossing control method, wherein a plurality of block sections which do not insulate a track circuit are set, a block signal is provided at a block boundary of these block sections, and a transmission section and a reception section are provided for each block section. And a transmission repeater composed of a logic unit, and outputs a track circuit signal including the position information of the preceding train and the succeeding train from the transmission unit of these transmission repeaters to track circuits adjacent both before and after the traveling direction of the train. The received track circuit signal is received by the receiver of the transmission repeater, the position information of the preceding train and the succeeding train is obtained, the train is detected by the logic unit, and the speed is indicated according to the order in which the blocking signals are closed. On the other hand, a railroad crossing control receiving unit and a railroad crossing control logic unit are provided in the vicinity of a railroad crossing installed in a predetermined block section of the track circuit, and this receiving unit transmits a transmission repeater behind the traveling direction of the train. Receiving the track circuit signals output from the section, and detects the position of the subsequent train crossing control logic unit calculates the crossing shutoff start time, and controlling the starting point of crossing.

According to a third aspect of the present invention, there is provided a level crossing control method according to the second aspect, wherein the level crossing control logic unit calculates a long approaching distance when the train speed is high and the train speed is low when performing the level crossing starting point control. At this time, the train approach distance is calculated to be short, and the logic part of the transmission repeater corrects the train speed shown on the block signal.

[0011]

FIG. 1 is a schematic view showing an embodiment of the present invention. The same reference numerals are given to the same parts as in the prior art, and the description thereof will be simplified. In this embodiment, the track circuit 1 is constituted by a non-insulated track circuit. X1 to Xn, which are not only the block boundaries but also the transmission repeater connection points to the track circuit 1, have track circuit transmitting units S1 to Sn.
n, track circuit receiver (for detecting preceding train position) R00-R0
n, and track circuit receiving section (for subsequent train position detection) R10 ~
R1n are connected in parallel. These block boundaries X1 to X
In n, boundary blurs l1 to ln which are features of the non-insulated track circuit are described.
Inevitably exists. K1 to Kn are transmission repeater logic units, which are connected to the transmission units S1 to Sn, the reception units R00 to R0n, and the reception units R10 to R1n, and are also connected to block signals L1 to Ln. The transmission repeater logic units K1 to Kn include transmission units S1 to Sn and reception units R00 to R
0n, together with the receiving units R10 to R1n, constitute transmission repeaters Q1 to Qn. The train speeds V1 to V3 are the block traffic signals L1 to L
It is shown corresponding to n.

The transmission repeaters Q1 to Qn correspond to conventional track circuit transmitting / receiving sections, and block sections T1 to Tn for detecting trains.
It is installed at the block boundaries X1 to Xn for each unit, and performs a function of transmitting and relaying a track circuit signal flowing in the track circuit 1 to an adjacent track circuit while performing train detection. The track circuit signals in the adjacent block sections T1 to Tn change the carrier frequency to avoid interference. R in block section T1
h is a level crossing control receiving unit, and Kh is a level crossing control logic unit. The track circuit signals D1 to Dn are transmitted to track circuits adjacent both before and after (inside and outside) the traveling direction of the train around the transmission point, and are high at the transmission point and low at the reception point. Track circuit signal D
The contents of the data 1 to Dn are the IDs of the transmission repeaters Q1 to Qn.
It consists of a number, preceding train position information, succeeding train position information, and other information. The orbit circuit signals D1 to Dn are constantly transmitted from the transmission relay units Q1 to Qn.

For example, a description will be given of train detection and information transmission in the transmission relay section Q2. The track circuit receiving section R01 receives the track circuit signal D1, discriminates the preceding train position information, and transmits it to the transmission relay logic section K2. When there is a train in the block section T1, the transmission relay logic unit K2 clears the preceding train position information and sets the number of open blocks to O. When there is no train in the block section T1, the transmission relay logic unit K2 inputs the track circuit signal D2 obtained by adding one block to the preceding train position information to the transmission unit S2. The track circuit receiving unit R13 receives the track circuit signal D3, determines the subsequent train position information, and determines the transmission relay logic unit K2.
Send to When there is a train in the block section T2, the transmission relay logic unit K2 clears the subsequent train position information and sets the number of open blocks to O. Here, the block section T2 is a boundary blur 1
2 so that the train detection is advanced by this 12 minutes. When there is no train in the block section T2, the transmission relay logic unit K2 inputs the track circuit signal D2 reduced by one block to the subsequent train position information to the transmission unit S2. The transmission relay unit Q2 thus performs train detection in the transmission relay logic unit K2,
A new track circuit signal D2 is created and transmitted to the track circuit 1.

The track circuit signal D2 is transmitted from the transmission section S2 to both the inside and the outside of the track circuit 1, and the transmission relay section Q1
Is received by the receiving unit R12 of the transmission relay unit Q3 and relayed. Thus, the transmission relay unit Q2 successively transmits the preceding train position and the succeeding train position to the adjacent track circuit 1.

On the other hand, the transmission relay logic unit K2 detects the position of the preceding train through the receiving unit R01. Then, the number of blocks opened from this preceding train position is calculated, and the traffic light L2 is calculated.
Determines the signal to be instructed to the subsequent train and performs the present control. Since the railroad crossing 3 is in the block section T1, a railroad crossing control receiving unit Rh is provided near the railroad crossing 3 so that the railroad crossing 3 is controlled for a fixed time. That is, the receiving unit Rh receives the track circuit signal D2 and determines the position information of the subsequent train.
Based on the position information, the railroad crossing control logic unit Kh estimates the speed to be displayed on the subsequent train. The interruption start time of the railroad crossing 3 is calculated from the position information and the analogy time. When the train speed is high, the train approach distance is calculated to be long. When the train speed is low, the train approach distance is calculated short. Furthermore, boundary blurs 11 to ln, which are features of the non-insulated track circuit, are also subject to distance correction. In this way, constant-time control can be performed so that the railroad crossing 3 is not unnecessarily shut off.

In the above embodiment, the railroad crossing control including the track circuit block control has been described. However, the present invention is not necessarily limited to this. For example, only the track circuit block control may be performed. Also, the specific configuration of the transmission relay units Q1 to Qn is merely a preferred example, and it goes without saying that other configurations may be used.

[0017]

The invention of claim 1 is as described above,
A plurality of block sections that do not insulate the track circuit are set, a block signal is provided at a block boundary of these block sections, and a transmission repeater including a transmission section, a reception section, and a logic section is provided for each block section, and these transmission repeaters are provided. A track circuit signal including the position information of the preceding train and the succeeding train is output from the transmitting section to adjacent track circuits both before and after the traveling direction of the train, and the output track circuit signal is received by the receiver of the transmission repeater. In order to obtain the position information of the preceding and succeeding trains, perform the train detection by the logic unit, and to control the block by indicating the speed of the block signal in the order of the block, the block control of the track circuit was conventionally performed by the track side. Eliminates the need for laid signal control cables. Also, the train detection device that has been required for the level crossing starting point control up to now becomes unnecessary.
Since the track circuit signal itself has the preceding train position information and the succeeding train position information, the information can be used at any position along the railway. Since the transmission repeater performs train detection by itself and knows the position of the preceding train,
Signaling of the traffic light at the block boundary is possible.

The invention according to claims 2 and 3 further includes:
By providing the railroad crossing control receiving unit and the railroad crossing control logic unit near the railroad crossing, the position of the succeeding train and the speed information currently displayed on the succeeding train can be obtained. By installing the portable receiver in the gauge, train approach information can be obtained, and convenience and safety can be provided to a construction builder using train intervals. Furthermore, when such train approach information is obtained from the transmission repeater at the station, the information can be posted on the information display board, and there is an excellent effect that the service for passengers can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing an embodiment of the present invention.

FIG. 2 is a schematic view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Non-insulated track circuit 3 Railroad crossing X1-Xn Blocking boundary (transmission repeater connection point) S1-Sn Track circuit transmitter R00-R0n Track circuit receiver (for detecting preceding train position) R10-R1n Track circuit receiver (subsequent train) K1 to Kn Transmission repeater logic L1 to Ln Blocking signal l1 to In Boundary blur Q1 to Qn Transmission repeater T1 to Tn Blocking section Rh Level crossing control receiving section Kh Level crossing control logical section D1 to Dn Track circuit signal

Claims (3)

(57) [Claims] 1. A plurality of block sections which do not insulate a track circuit are set, a block signal is provided at a block boundary of these block sections, and a transmission repeater including a transmission section, a reception section and a logic section is provided for each block section. The transmission circuit of these transmission repeaters outputs track circuit signals including the position information of the preceding train and the succeeding train to adjacent track circuits both before and after the traveling direction of the train, and outputs the output track circuit signals of the transmission repeater. Receiving at the receiver, obtaining the position information of the preceding train and the succeeding train, detecting the train by the logic unit, and performing speed control according to the closing order of the blocking traffic signal and performing block control. Control method. 2. A plurality of block sections that do not insulate the track circuit are set, a block signal is provided at a block boundary of these block sections, and a transmission repeater including a transmission section, a reception section, and a logic section is provided for each block section. The transmission circuit of these transmission repeaters outputs track circuit signals including the position information of the preceding train and the succeeding train to adjacent track circuits both before and after the traveling direction of the train, and outputs the output track circuit signals of the transmission repeater. Received by the receiver, obtains the position information of the preceding train and the succeeding train, performs the train detection by the logic unit, and performs the speed control according to the closing order of the blocking signal and controls the blocking, while the predetermined blocking section of the track circuit A railroad crossing control receiving unit and a railroad crossing control logic unit are provided near the railroad crossing installed in the train, and this receiving unit receives the track circuit signal output from the transmitting unit of the transmission repeater behind the train traveling direction. A railroad crossing control method comprising: determining a position of a subsequent train; calculating a railroad crossing cutoff start time in a railroad crossing control logic unit; and controlling a starting point of the railroad crossing. 3. A railroad crossing control logic unit calculates a train approaching distance long when a train speed is high, at a railroad crossing starting point control,
3. The railroad crossing control method according to claim 2, wherein when the train speed is low, the approach distance of the train is calculated to be short, and the logic unit of the transmission repeater corrects the train speed displayed on the traffic signal.