JP4827288B2 - Speed check device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a speed checking device that checks a train speed at a plurality of points using a ground unit, and more particularly, to a speed checking device that can simplify a laying configuration of a cable that connects a ground unit and a speed verification receiver.
[0002]
[Prior art]
As a device for checking the speed of a train traveling on a train track at a plurality of points, conventionally, a detection ground element and a control ground element provided at each of the plurality of points, and a speed verification connected to these ground elements are used. There is a speed check device having a receiver (hereinafter referred to as a quick-light receiver). A conventional example of such a speed checking device will be described with reference to FIG.
[0003]
In FIG. 4, detection ground elements 3 </ b> A to 3 </ b> D are installed on a track 2 of a train 1 with a predetermined interval. The detection ground elements 3 </ b> A to 3 </ b> D include a coil for receiving a constant oscillation signal transmitted from the train 1. Each of the detection ground elements 3A to 3D is connected to the quick-light receiver 5 via the matching units 4A to 4D. Matching devices 4A to 4D include capacitors and resistors, and form a resonance circuit with detection ground elements 3A to 3D to attenuate signals of frequency components other than the oscillation frequency of the constantly oscillated signal, thereby detecting ground elements 3A. It is the structure which inputs the train detection signal from -3D to the quick-light receiver 5.
[0004]
Control ground elements 6A to 6D are installed on the traveling direction side of the train 1 of the detection ground elements 3A to 3D, respectively. In each control ground element 6A to 6D, both ends of the internal coil are short-circuited and opened by ON / OFF of the control relays 7A to 7D, and stop information is transmitted to the train 1 side when opened, and no stop information is displayed when short-circuited. It is comprised so that it may switch. The control relays 7A to 7D are excited by the current sent from the quick-light receiver 5, and short-circuit both ends of the coils of the control ground elements 6A to 6D.
[0005]
The installation distances d1 to d4 between the control ground elements 6A to 6D and the detection ground elements 3A to 3D provided in the immediate vicinity thereof are speeds set in advance in a timer 5A provided in the quick reference receiver 5 described later. It is determined based on the checking timer value and the speed limits V1 to V4 of the train 1 at the speed checking points 2A to 2D corresponding to the installation points of the control ground elements 6A to 6D. That is, if the train 1 travels within the speed limit, it is set to such a distance that the speed check timer value expires before passing the detection ground element 3A to 3D and arriving at the control ground element. . Conventionally, since the speed check timer value is constant, in the speed limit curve of FIG. 4, the speed limits in the control ground elements 6A to 6D are in the relationship of V1>V2>V3> V4, and the installation interval is , D1>d2>d3> d4.
[0006]
When receiving the constant oscillation signal from the detection ground elements 3A to 3D, the quick-light receiver 5 starts counting of the timer 5A. When the timer 5A times out the speed check timer value, the control relays 7A to 7D connected to the control ground elements 6A to 6D corresponding to the detection ground elements 3A to 3D to which the oscillation signal is always input are excited. At the same time, the quick-light receiver 5 switches the input to the detection ground element that performs the next speed check.
[0007]
Next, the operation of the conventional speed checking device will be described with reference to FIG. It is assumed that the train 1 travels on the track 2 while decelerating in the right direction in the figure.
When the train 1 passes over the detection ground element 3A, the quick-light receiver 5 receives the train detection signal from the detection ground element 3A that has received the constantly oscillating signal transmitted from the train 1, and starts the timer 5A. To do. When the speed of the train 1 is traveling at a speed exceeding the speed limit V1 at the speed check point 2A, the train 1 moves to the speed check point 2A before the timer 5A times out the speed check timer value. In order to reach, the stop information of the control ground element 6A is received. The train 1 that has received the stop information is forcibly stopped by, for example, the operation of the ATS onboard device in the train 1. On the other hand, when the train 1 is traveling at a speed such that the speed of the train 1 is within the speed limit V1 at the point 2A, the timer 5A times up the speed check timer value, and the control ground element 6A is transmitted. Since the information reaches the control ground element 6A after the information becomes no information, the process proceeds without receiving the stop information from the control ground element 6A. Then, the quick light receiver 5 switches the input to the detection ground element 3B corresponding to the next speed check point 2B. Thereafter, the speed check of the train is performed in the same manner at the speed check points 2B, 2C, and 2D.
[0008]
[Problems to be solved by the invention]
However, the conventional speed check as described above has a configuration in which the speed check timer value set in the timer provided in the quick light receiver is made constant and the speed check is performed with one timer value. It is necessary to install a detection ground element for each control ground element installed at the point to be performed, and the number of cables connecting the ground element and the quick-light receiver increases, and the laying configuration becomes complicated. . Furthermore, the burden of maintenance and inspection is increased.
[0009]
The present invention has been made in view of the above circumstances, and by setting a plurality of speed check timer values in the timer provided in the quick reference receiver, only one detection ground element is required. It is an object of the present invention to provide a speed checking device that can simplify the laying configuration of the cable that connects the receiver and the quick-light receiver and can reduce the burden of maintenance and inspection.
[0010]
For this reason, the invention which concerns on Claim 1 has a space | interval in the train advancing direction side with respect to the detection ground element which receives the signal which is always oscillating from a train, and detects a train, and this detection ground element Based on the control ground element that transmits the train control information to the passing train, the train speed limit at the installation point of the control ground element, and the distance between the detection ground element and the control ground element When the set speed check timer value matches the elapsed time since the train detection signal was input from the detection ground element, the control control of the control ground element is switched from stop information to no information. A speed check receiver, and a speed check device for checking whether the train speed exceeds the speed limit at the installation point of the control ground element, and installing one of the detection ground elements, A plurality of control ground elements are provided at intervals. Installed, the rate Shosa receiver, on the basis of the detection ground coil in each train speed limit at the installation point of the distance and the respective control balise to each control ground coil, corresponding to the control ground terminal The train control information of the corresponding control ground element is switched from stop information to no information on the basis of a plurality of speed check timer values respectively set, and the detection ground element A feature is that the distance to the control ground element closest to the upper element is set to a value smaller than any of the distances between adjacent control ground element installation points .
[0011]
In this configuration, the number of detection ground elements is set to one, and a plurality of control ground elements are installed at a distance closer to the train traveling direction than the detection ground element. A plurality of speed check receivers are set for each control ground element based on the distance from the detection ground element to each control ground element and the train speed limit at the installation point of each control ground element. When the speed check timer value matches the elapsed time after the train detection signal is input from the detection ground element, the train control information of the control ground element is switched from stop information to no information.
[0012]
In the invention according to claim 2, the speed check receiver has a plurality of time measuring means for measuring each of the plurality of speed check timer values, and all of the plurality of time measuring means are configured to detect the train. The timing is started when a signal is input.
In the invention according to claim 3, the speed check receiver has a single time measuring means for measuring the plurality of speed check timer values. At the same time as the completion of the timing of the speed check timer value corresponding to the control ground element that arrives, it is assumed that the timer value up to the completion of the time measurement has been timed and corresponds to the control ground element that the train reaches next It was set as the structure which starts timing of the timer value for speed verification.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a view showing a first embodiment of the speed check device of the present invention. In addition, the same code | symbol is attached | subjected to the same part as the prior art shown in FIG. 4, and description is abbreviate | omitted.
In FIG. 1, one detection ground element 3 is installed in the vicinity of the entrance of the speed control section on the track 2 of the train 1, and the detection ground element 3 is connected to the quick reference receiver 5 through the matching unit 4. The A plurality of control ground elements 6A to 6D are installed at predetermined intervals on the track 2 on the traveling direction side of the train 1 from the detection ground element 3, and each of the control ground elements 6A to 6D is connected to a control relay 7A. It is connected to the quick-light receiver 5 together with ~ 7D. Further, for example, a stop station 8 is installed at the end of the speed control section.
[0014]
The speed limits V1 to V4 of the train 1 are determined at the speed check points 2A to 2D on the track 2 corresponding to the installation points of the control ground elements 6A to 6D, respectively. The speed limits V1 to V4 of the train 1 are obtained with reference to the stop station 8, for example. Specifically, the speed limit V4 of the train 1 at the speed check point 2D is the maximum value of the train speed at the speed check point 2D so that the train 4 can stop at the stop station 8 by a normal brake operation by the driver. is there. And the speed limit of the train 1 at the speed check point 2C is the speed check point 2C at which the train 1 can decelerate to the train speed limit V4 when the train 1 reaches the speed check point 2D by a normal brake operation by the driver. The maximum train speed. Since the speed limits V2 and V1 of the train 1 are determined in the same manner as V3, the description is omitted.
[0015]
As in this embodiment, after setting the installation positions of the control ground elements 2A to 2D in advance and setting the train speed limit at each of the speed check points 2A to 2D, the braking performance on the track 2 is improved. Even when different trains travel, it is not necessary to change the installation points of the control ground elements 6A to 6D.
The quick-light receiver 5 includes a CPU 5B. The CPU 5B has four timers as time measuring means, and each timer counts four speed checking timer values corresponding to the control ground elements 6A to 6D independently. The speed check timer value is set based on the speed limits V1 to V4 of the speed check points 2A to 2D and the distance between the detection ground element 3 and the control ground elements 6A to 6D. The speed check timer value is counted based on the clock frequency of the CPU 5B. Counting by the CPU 5B is performed for each control ground element 6A to 6D. When the CPU 5B receives the train detection signal from the detection ground element 3 that has received the constantly oscillating signal transmitted from the train 1, it counts each speed check timer value corresponding to all the control ground elements 6A to 6D. It is a configuration that starts all at once. When the CPU 5B counts up to the speed check timer value for each control ground element 6A to 6D, it energizes the control relays 8A to 8D connected to the control ground elements 6A to 6D corresponding to the speed check timer value. Then, the train control information of the control ground elements 6A to 6D is switched from stop information to no information.
[0016]
Next, the operation of the quick reference receiver 5 according to the first embodiment will be described with reference to the time chart of FIG.
FIG. 2A shows the output of the train detection signal of the detection ground element 3. FIGS. 2B to 2E show the state of the speed check timer value corresponding to each of the control ground elements 6A to 6D, respectively, and indicate that the rising part of the chart is counting. Yes. Moreover, FIG.2 (f)-(i) represents the content of the train control information of each control ground element 6A-6D.
[0017]
The CPU 5B in the quick light receiver 5 simultaneously starts the four timers simultaneously with receiving the train detection signal from the detection ground element 5 that has received the constant oscillation signal transmitted from the train 1. As a result, the CPU 5B starts counting all the speed check timer values corresponding to the control ground elements 6A to 6D (dotted line portions in FIGS. 2A and 2B to 2E). Counts up to the speed check timer values corresponding to the control ground elements 6A to 6D (FIGS. 2B to 2E). When the time for the speed check timer value is up, the CPU 5B switches the train control information of the control ground elements 6A to 6D corresponding to the speed check timer value from stop information to no information (FIG. 2 (b). ) To (e) and dotted lines in FIGS. 2 (f) to (i). Then, when the information that the train 1 has finished passing through the speed control section is input from the outside, the quick light receiver 5 resets the control ground elements 6A to 6D, switches the train control information to the stop information again, and then continues. Prepare for the speed check of the train.
[0018]
Specifically, when the train 1 is traveling at a speed exceeding the speed limit V1 of the train 1 at the speed check point 2A indicated by the speed limit curve in FIG. Before reaching the timer value, the stop information of the control ground element 6A is received to reach the speed check point 2A. The train 1 that has received the stop information is forcibly stopped by, for example, the operation of the ATS on-board device in the train. On the other hand, when the train 1 is traveling at a speed that is within the speed limit of the train 1 at the speed check point 2A, the train 1 reaches the speed check point 2A after the CPU 5B times up the speed check timer value. Therefore, it proceeds as it is without receiving stop information from the control ground element 6A. Thereafter, similarly, each time the speed check timer value corresponding to each control ground element 6B to 6D is timed up, the CPU 5B changes the train control information of the control ground elements 7B to 7D from stop information to no information. Switch. When information indicating that the train 1 has passed through the speed control section is input from the outside, the CPU 5B releases the excitation of the control relays 8A to 8D and resets the count value of the timer. As a result, the control ground elements 6 </ b> A to 6 </ b> D again transmit stop information on the track 2. And a speed check apparatus will be in the state before the train 1 is received by the detection ground element 3, and performs the speed check of the next train which approachs into the said speed control area.
[0019]
Next, 2nd Embodiment of this invention is described based on drawing. The arrangement of the speed checking device is the same as that of the first embodiment, and only the operation of the CPU 5B provided in the speed lighting receiver 5 is different.
Four speed checking timer values corresponding to the control ground elements 6A to 6D are set in the CPU 5B provided in the speed lighting receiver 5, and a timer as a single timing means for counting each timer value. have. An example of the timer is a ring counter. The ring counter regards that the speed check timer value corresponding to the control ground element 6A that the train first reaches reaches at the same time that the speed check timer value is reached, and the train reaches the next time. It is the structure which starts the count of the timer value for speed verification corresponding to the control ground element 6B to perform.
[0020]
Next, the operation of the quick-light receiver 5 according to the second embodiment will be described with reference to the time chart of FIG.
3A shows the train detection output of the detection ground element 3 as in the first embodiment, and FIGS. 3B to 3E show the speed check timer values for the control ground elements 6A to 6D, respectively. Represents the state of counting.
[0021]
The CPU 5B activates the ring counter simultaneously with receiving the train detection signal from the detection ground element 5 that has received the constant oscillation signal transmitted from the train 1. As a result, the CPU 5B starts counting (dotted line portions in FIGS. 3A and 3B). Then, when the speed check timer value corresponding to the control ground element 6A expires, the CPU 5B starts counting the speed check timer value for the control ground element 6B (FIGS. 3B and 3C). Dotted line). Then, the CPU 5B counts a value obtained by subtracting the already-counted speed check timer value corresponding to the control ground element 6A from the speed check timer value corresponding to the control ground element 6B that the train will reach next. Thereafter, similarly, the CPU 5B sequentially counts the speed check timer values corresponding to the control ground elements 6C and 6D (FIGS. 3D and 3E).
[0022]
Thus, as shown in FIG. 3, the second embodiment is configured to reset the timer count process substantially every time the speed check timer value expires and to count the next speed check timer value. Therefore, it is possible to reduce the timer error due to the long time keeping.
As described above, one detection ground element 3 is installed near the entrance of the speed control section on the track 2, and a predetermined interval is provided on the track 2 on the traveling direction side of the train 1 from the detection ground element 3. The control ground elements 6A to 6D are installed, and based on the distance from the detection ground element 3 to each control ground element 6A to 6D and the speed limit of the train 1 in each control ground element 6A to 6D. Since a plurality of speed verification timer values are set for each of the speed verification points 2A to 2D, it is not necessary to provide a plurality of detection ground elements. The number of cables connecting the reference receiver 5 can be reduced, and the cable laying configuration can be simplified. Accordingly, the maintenance of the apparatus can be improved.
[0023]
In the first and second embodiments, the CPU 5B is used to set and count a plurality of speed check timer values. However, a timer circuit other than the CPU is used to set a plurality of timer values. Alternatively, it may be configured to count.
[0024]
【The invention's effect】
As described above, according to the first and second aspects of the invention, since only one detection ground element is required, the cable laying configuration can be simplified, and maintenance can be improved.
According to the third aspect of the invention, it is possible to reduce a timer error due to an increase in time measurement.
[Brief description of the drawings]
FIG. 1 is a configuration diagram of a speed check device according to a first embodiment of the present invention. FIG. 2 is an operation time chart of a speed check receiver according to the first embodiment. FIG. Operation time chart of speed check device [Fig. 4] Configuration diagram showing an example of a conventional speed check device [Explanation of symbols]
1 Train 3 Ground unit for detection 5 Speed receiver 5B CPU
6A-6D control ground unit

Claims (3)

A detection ground element that detects a train by receiving a signal that constantly oscillates from the train,
A control ground element that is installed with an interval on the train traveling direction side with respect to the detection ground element and transmits train control information to a passing train,
The speed limit timer value set based on the train speed limit at the installation point of the control ground element and the distance between the detection ground element and the control ground element is input to the train detection signal from the detection ground element. A speed check receiver for controlling the train control information of the control ground element from stop information to no information when it coincides with the elapsed time since the train time, and the train speed is at the installation point of the control ground element In a speed check device that checks whether or not the speed limit is exceeded,
One of the detection ground elements is installed, and a plurality of the control ground elements are installed at intervals, and the speed verification receiver is configured to detect the distance from the detection ground element to each control ground element and Based on each train speed limit at the installation point of the control ground element, the train of the corresponding control ground element based on a plurality of speed check timer values respectively set corresponding to each control ground element While switching control information from stop information to no information ,
The distance from the detection ground element to the control ground element closest to the detection ground element is set to a value smaller than any of the distances between adjacent control ground element installation points. Speed check device featuring. The speed check receiver has a plurality of time measuring means for measuring each of a plurality of speed check timer values respectively set corresponding to the control ground elements, and all of the plurality of time measuring means include: The speed check device according to claim 1, wherein time counting is started when the train detection signal is input.   The speed check receiver has a single timing means for timing the plurality of speed check timer values, and the single timing means corresponds to the speed corresponding to the control ground element that the train reaches first. At the same time as the completion of the timing of the check timer value, it is assumed that the timer value up to the completion of the time is counted, and the timing of the speed check timer value corresponding to the control ground element that the train reaches next is started. The speed check device according to claim 1, wherein the speed check device is configured.

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