JP3826335B2 - Automatic train driving device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automatic train driving device mounted on a railway vehicle, can recognize a change in the reception level of a speed limit signal of the automatic train control device, and the signal change boundary stored in the device as the level change point. The present invention relates to an automatic train driving device having means for comparing with information.
[0002]
[Prior art]
In the automatic train driving device according to the prior art, the traveling position is detected and corrected only from the point signal inputted from the traveling distance calculation by speed frequency acquisition and the traveling position correction ground element installed on the ground. It was.
[0003]
For this reason, if a significant amount of slipping or gliding occurs during travel and the travel distance calculation value differs greatly from the actual distance, the travel position must be misidentified until the ground unit is installed. There wasn't.
[0004]
In addition, the ground element for travel position correction is usually used for deceleration control when entering the next station, and the installation position is set immediately before the next station for that purpose, so the travel distance calculation value is greatly increased. If the driving pattern is different from the normal driving pattern until the ground signal is received, even if control is performed to follow the normal driving pattern from the time when the correction is performed, it cannot be tracked until the stop, and the stop accuracy , Riding comfort may be affected.
[0005]
[Problems to be solved by the invention]
In the prior art, the travel position is detected and corrected only from the point signal input from the travel distance calculation by speed frequency acquisition and the travel position correction ground element installed on the ground. Even if a large amount of slipping or gliding occurs and the mileage calculation value is significantly different from the actual distance, it is necessary to travel with the misplaced position up to the ground station installation point in front of the next station. It has a problem that it cannot be obtained.
[0006]
An object of the present invention is to solve the problems of the prior art, to enable correction of the traveling position of the host vehicle at any time other than when receiving a ground element during traveling, and to correct a traveling position detection error according to the traveling speed. It is to provide an automatic train driving device capable of performing the above.
[0007]
[Means for Solving the Problems]
According to the present invention, the object is to provide a train having an automatic train control device that continuously receives a frequency signal from a track circuit laid on the ground, determines a travel speed limit based on the frequency, and performs travel speed limit control. point is mounted on a vehicle, captures the frequency signal, the line power sale automatic train operation system signal discrimination in the device comprises means for recognizing the input level of the frequency signal, changes over a certain range the input level And the signal blockage boundary point information stored in the apparatus, and if the difference between the points is within a certain distance, the travel position of the host vehicle is corrected and the level change of the frequency signal for speed limit control is If you can not recognize on the vehicle even if you travel to the position corresponding to the signal blockage boundary information stored in the device, based on the travel distance calculation by speed frequency capture and the point signal by the ground unit, By performing the determination and correction of vehicle travel position is achieved.
[0008]
In addition, the object is to consider the reception delay time on the vehicle of the frequency signal for speed limit control at the time of travel position correction, and to recognize a point where a level change over a certain range of the signal is recognized according to the travel speed. This is achieved by correcting.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of an automatic train driving apparatus according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing a configuration of an automatic train driving apparatus according to an embodiment of the present invention.
[0010]
In FIG. 1, 3 is a vehicle body, 1 is an automatic train driving device (hereinafter referred to as an ATO device), 2 is an automatic train control device (hereinafter referred to as an ATC device), 8 is an ATC signal reception level detection circuit, 10 Is an ATC device speed check unit, 15 is an ATC signal blockage boundary data storage device, 14 is a comparison circuit, and 17 is an ATO control unit.
[0011]
An automatic train driving device (ATO device) 1 according to an embodiment of the present invention has a reception level of an ATC signal received via an antenna 4 from a track circuit 18 in which an automatic train control device (ATC device) 2 is laid on the ground. ATC signal reception level detection circuit 8 to be measured, speed generator 6, integration circuit 11 for integrating speed pulses to obtain a travel distance, signal level drop point detected by ATC signal reception level detection circuit 8 and ATC signal blockage boundary data storage device 15. Comparison circuit 14 for comparing 15 data, ATO device receiving antenna 5 for inputting the signal of ATO ground unit 19 to the device, ATO receiving unit 9, storage device 16 for storing ATO ground unit position data, and each device It is comprised by the control part 17 which determines a driving pattern using the input signal from, and outputs a driving command to each apparatus in a vehicle.
[0012]
Next, the operation of the embodiment of the present invention configured as described above will be described.
[0013]
The ATO device 1 of the present invention includes an ATC signal reception level detection circuit 8 that measures the reception level of an ATC signal received via the antenna 4 from the track circuit 18 laid on the ground by the ATC device 2.
[0014]
If the vehicle is traveling ATC signal section, ATC signal reception level passing Tsuneichi Dan changes in ATC signal blockage boundary as shown in FIG. The AC signal reception level detection circuit 8 outputs a level change detection signal at a timing when the reception level changes over a certain range.
[0015]
At this timing, the traveling position data calculated by the integrating circuit 11 from the speed pulse signal input from the speed generator 6 is output to the comparison circuit 14.
[0016]
The comparison circuit 14 compares the travel position data at this time with the ATC signal blockage boundary data programmed in the storage device 15 in advance, and if the difference is within a certain range, the current travel position coincides with the ATC signal blockage boundary. The travel position correction command is output to the ATO control unit 17 assuming that the position is a position. At that time, the ATO control unit 17 corrects the travel position recognition of the host vehicle to the position and performs subsequent control.
[0017]
However, when the vehicle is driven at a high speed, a delay in detecting a decrease in the ATC signal reception level cannot be ignored. Therefore, in this embodiment, the ATC signal reception level detection circuit 8 according to the traveling speed by the data correction device 13. After the travel position recognition at the time of detection is corrected, the comparison circuit 14 compares it with the ATC signal blockage boundary data.
[0018]
In addition, when the vehicle travels to a position corresponding to the ATC signal blockage boundary data programmed in the ATC signal blockage boundary data storage device 15 and the level change beyond a certain range of the ATC signal cannot be detected within the detection permission section, the ATC signal Travel position correction based on level change detection is not performed.
[0019]
In that case, as in the prior art, the ATO control unit 17 determines and corrects the train travel position based on the travel distance calculation by the speed frequency signal fetching from the speed generator 6 and the point signal from the ground element 19 for ATO. Do.
[0020]
【The invention's effect】
As described above, according to the present invention, the ATC signal reception level change point is detected, and the point is compared with the ATC signal blockage boundary data programmed in the apparatus, so that the difference between the points is within a certain distance. If so, the traveling position of the host vehicle can be corrected.
[0021]
Further, by taking into account the reception delay time on the vehicle when the ATC signal level change is detected, the travel position at the detection point is corrected according to the travel speed, so that more accurate travel position correction can be performed.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.
FIG. 2 is a diagram illustrating a typical example of an ATC signal reception level in the vicinity of an ATC signal blockage boundary;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Automatic train operation apparatus (ATO apparatus), 2 ... Automatic train control apparatus (ATC apparatus), 3 ... Vehicle body, 4 ... ATC signal receiving antenna, 5 ... ATO signal receiving antenna, 6 ... Speed generator, 7 ... ATC signal Receiving unit, 8 ... ATC signal reception level detection circuit, 9 ... ATO signal receiving unit, 10 ... ATC device speed checking unit, 11 ... Speed pulse integration circuit, 12 ... AND circuit, 13 ... Data correction device, 14 ... Comparison circuit, DESCRIPTION OF SYMBOLS 15 ... ATC signal obstruction | occlusion boundary data storage device, 16 ... ATO ground element position data storage device, 17 ... ATO control part, 18 ... Track circuit for automatic train control device (ATC device), 19 ... Automatic train operation device (ATO device) For ground child.

Claims (1)

The frequency signal is continuously received from the track circuit laid on the ground, the travel speed limit is determined based on the frequency, and installed in the railway vehicle having an automatic train control device that performs the travel speed limit control, and the frequency signal is captured. in line cormorants automatic train operation system signal discrimination in the apparatus,
And means for recognizing the input level of the frequency signal, compares the signal blockage frontier point information stored in the apparatus and the point that has changed over a certain range the input level difference of the point is within the predetermined distance If the travel position of the host vehicle is corrected and the level change of the frequency signal for speed limit control cannot be recognized on the vehicle even when traveling to the position corresponding to the signal blockage boundary information stored in the device An automatic train driving device that performs judgment and correction of a train travel position based on a travel distance calculation by speed frequency acquisition and a point signal by a ground element .

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