JP2938596B2 - Optical transmission type automatic closing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical communication type automatic closing device which is used in connection with a railway track to ensure the safety of the operation of a vehicle, and more particularly to receiving and responding to an optical signal transmitted from a vehicle-mounted device. The present invention relates to an improvement in a part of an optical receiver for displaying.

[0002]

2. Description of the Related Art In order to ensure the safety of railway operation, blocking devices are used for the purpose of permitting only one train per section. Among these, the optical transmission type automatic closing device is provided with a closing device such as a point machine or a signal light laid on a railway track, and a stopping device as shown in FIG. 4 (schematic plan view) and FIG. 5 (schematic side view). 50, a station device 30 for operating the closing devices (pointers RP, signal lights S) installed on the train 50, and an in-vehicle device 2 provided in the train T for transmitting (transmitting) an optical signal in accordance with an operation of a crew member.
0 (not shown) and the support 17 on the side of the track R in the stop
It receives the coded unique optical signal transmitted from the in-vehicle device 20 and transmits an electric signal corresponding to the optical signal to the station device 30 installed in the vicinity through the twisted pair wire 19. The display unit 15 transmits and operates the closing device group via the station device 30 and receives an electric signal indicating that these predetermined operations are completed from the closing device group via the station device 30. The predetermined display operation of the reaction lamp 15A provided in (for example, changing the present color,
The optical receiving device 10 is configured to notify the operator of the vehicle-mounted device on the train stopped at the station by flashing or the like) of the completion of the operation of the blocking device. Normally, the display operation is assigned an operation in which a constantly lit reaction lamp blinks at a constant interval.

When the driver of the train T departs from the stop station in the closed section BLa to the next closed section BLb, the driver of the train T operates the on-vehicle device 20 to receive the light receiving section of the optical receiving apparatus 10 provided near the front track side. An optical signal is transmitted to 11 for a departure request. In response to the light signal, when each of the closing devices including the distant one has completed the predetermined operation, the driver is informed to this effect by the predetermined display operation of the reaction lamp 15A of the display unit 15 of the light receiving device 10. Can be After confirming this display, the driver advances the train. In addition, the optical receiver further includes an amplifying unit 12, a transformer 13, a matching transformer 14,
The power supply 16 is included. In addition, the in-vehicle device 2
In the case of 0, the same thing is often mounted as a spare in case of failure.

[0004]

By the way, in the above-mentioned conventional optical transmission type automatic closing device, the on-vehicle device 20 and the
The display state of the reaction lamp 15A provided on the display unit 15 of the receiving device changes only when all of the receiving device 10, the station device 30, the closing device, and the like are operating normally. For this reason, it is possible to find out at the time of a failure in which the entire device does not function normally. However, it is not possible to identify which part of the many devices that are connected in the order in which it is known that there is a failure, and which is related to each other, from the display of the reaction lamp 15A with the conventional device. It takes a lot of time to find out whether there is a fault, repair it and repair the equipment,
During this time, the operation of public railways will be greatly affected. Also, from the viewpoint of the operator of the vehicle-mounted device, even if a failure display is obtained as a result of transmitting the optical signal, the operation is repeated many times in consideration of a case where the transmission of the optical signal is inadequate. The burden is heavy. Furthermore, since the optical communication system is used, if the distance between the in-vehicle device 20 as the transmitter and the light receiving device 10 as the receiver is not appropriate due to the performance limit or is not appropriate, or due to a weather condition such as rainy weather, the light is temporarily stopped. In some cases, a signal may not reach the receiving device 10 and an indication equivalent to a failure may be obtained, but such a case cannot be accurately specified.

In view of the situation described above, according to the present invention, the failure (or failure) of the optical transmission type automatic closing device is known step by step during a series of operations. Simple measures such as replacement of the device or approaching the receiving device can eliminate the malfunction of the optical transmission type automatic closing device or confirm that it is truly a failure and promptly contact the appropriate department. And the like, which can reduce the psychological burden on the operator of the vehicle-mounted device by taking optimal measures such as performing the same, such as the case where the optical communication between the vehicle-mounted device and the optical receiver is not established. It is an object of the present invention to provide an optical transmission type automatic closing device having a configuration that can be informed.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an optical transmission type automatic closing device according to the present invention comprises a closing device attached to a railway, and a station device installed in a stop yard to operate the closing device. , An in-vehicle device that is provided in the train and sends out a unique optical signal, and is erected on the side of the track inside the stop yard,
An optical signal transmitted from the in-vehicle device is received, and an electric signal corresponding to the optical signal is transmitted to the station device installed in the vicinity, and the closing device is caused to perform a predetermined operation via the station device. An electric signal to the effect that the completion has been received from the closing device via the station device, and the vehicle-mounted device operator on the train stopped at the station by a predetermined display operation of the reaction lamp provided on the display unit. In an optical transmission type automatic closing device comprising an optical receiving device for notifying the operation completion,
When the optical receiving device receives and receives a predetermined optical signal from the in-vehicle device, this is indicated by a second predetermined display operation different from the first predetermined display operation of the reaction lamp. The configuration is configured so as to inform the operator.

The above-mentioned optical transmission type automatic closing device further uses infrared rays as the above-mentioned optical signal, and a second predetermined display of the reaction lamp for notifying that a predetermined optical signal has arrived from the vehicle-mounted device and has received it. The operation is configured such that the reaction lamp that is always on is extinguished for a predetermined period.

[0008]

The operator of the vehicle-mounted device determines whether or not a predetermined optical signal has arrived at the optical receiver from the vehicle-mounted device, that is, whether there is a failure or a malfunction during this time, based on the presence or absence of the second predetermined display operation of the reaction lamp. You can easily find out. As a result of this operation, the operator recognizes that the optical signal has failed to reach between the on-vehicle device and the optical receiving device, and in response to this, can take immediate measures, that is, repeat transmission several times, or use a spare on-vehicle device. The user can immediately take a countermeasure, such as trying to transmit using, or transmitting closer to the optical receiving device. If the prescribed response is not obtained even with these measures, the range of the failed part can be identified as a failure of the other part of the optical transmission type automatic closing device, and it can be specified when the maintenance personnel repairs the device. The required time can be reduced. Further, the reaction lamp that constantly lights the second predetermined display operation of the reaction lamp that informs the operator of the vehicle-mounted device that the predetermined optical signal has reached the optical receiver from the vehicle-mounted device is extinguished for a predetermined period. With the configuration, this confirmation is easy.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a diagram showing a schematic configuration of an in-vehicle device 20 and an optical receiving device 10 that constitute an optical transmission type automatic closing device of the present invention. The in-vehicle device 20 is exactly the same as that conventionally used, and includes a switch 21 for instructing departure, arrival or cancellation thereof, a logic unit 22 for generating a unique code corresponding to each instruction, and this code. It comprises a light emitting unit 23 for sending out a communication destination and a battery 24.
The light receiving device 10 has a reaction lamp 1 on the display unit 15.
The only difference is that a second drive section 15D is added to drive 5A to meet the purpose of the invention. FIG. 2 is an electric circuit block diagram showing a main part of the optical receiving device 10 of the optical transmission type automatic closing device of the present invention. The light receiving unit 11 uses a light receiving element 11A, and outputs an electric signal corresponding to an optical signal (infrared ray) transmitted from the vehicle-mounted device 20. The light receiving unit 11 includes an amplifying unit 12, ie, a transformer 12A, amplifiers 12B and 12B.
C and the limiter 12D are connected in this order, and the output of the limiter 12D is connected to one winding L1 of the transformer 13 and the second drive unit 15D. Also, the transformer 13
A signal from an external station device 30 is extracted from the winding L1 and is connected to the first drive unit 15C. The amplifying unit 12 is provided for the purpose of suppressing noise in the transmission signal and adjusting the level of the transmission signal so as to be suitable for the subsequent processing.

The first drive section 15C receives a signal indicating that each section is normal, which is returned from the station device 30, and converts the signal into a rectifier circuit 154, a comparator 155,
Monostable multivibrator 156, non-stable multivibrator 157, synthesizing circuit 158 and drive circuit 159
, The reaction indicator lamp 15A is driven, and a normal operation is displayed. Further, the second driving unit 15D includes:
An output signal corresponding to the infrared light signal from the in-vehicle device 20 from the limiter 12 is converted into a rectifier circuit 151, a comparator 15
2. A predetermined infrared light signal is transmitted from the in-vehicle device 20 to the optical receiving device 10 by sequentially processing by the monostable multivibrator 153 and reflecting the result to the operation of the monostable multivibrator 156. The reaction indicator light 15A
However, the operator of the vehicle-mounted device is notified in the form of a display operation in which the constantly lit reaction indicator light goes out for a predetermined time (for example, 0.4 seconds). Subsequent to this display operation, if the entire optical transmission type automatic closing device is normal, the conventional display operation such as the blinking of the reaction indicator lamp 15A at regular intervals is performed, as in the conventional case. Needless to say, the in-vehicle device operator understands the fact.

FIG. 3 shows the electric signal waveforms (A) to (C) of the main parts of the apparatus of this embodiment in a normal state, and the reaction lamp 15.
3A illustrates light output states in various cases including a normal state and a failure state of A. The waveform (A) shows the output of the monostable multivibrator 153, the waveform (B) shows the output of the monostable multivibrator 156, and the waveform (C) shows the output of the non-stable multivibrator 157. The state (D) of the reaction lamp 15A indicates a case where the apparatus of the present embodiment is operating normally. When the waveform is on, the light is on, and when it is below, the light is off. That is, it is shown that the reaction lamp 15A which is normally lit in the normal state receives the light signal, turns off the light once (second display operation) for a predetermined time, and then repeats blinking temporarily at a constant interval (first display operation). I have. The state (E) shows the operation of the reaction lamp when the optical signal has reached the optical receiving device 10 but there is a failure in the subsequent device. Only the (second display operation) is performed, but the lighting state is maintained thereafter. In this case, it is presumed that it is difficult for the operator of the vehicle-mounted device to restore the optical transmission type automatic closing device, so that the restoration by another person is necessary. Further, the state (F) shows the operation of the reaction lamp when the optical signal does not reach the optical receiver 10, and the display operation of the reaction lamp 15A shows no change even when the optical signal is transmitted, and the lighting state is not changed. Hold. In this case, the operator of the in-vehicle device performs the various measures described above. In many cases, these simple measures can restore the function of the optical transmission type automatic closing device and continue train operation.

In the present invention, the present invention is not limited to the above-described embodiment. For example, although the visibility is lowered, the two types of display operations can be made to blink, and the two blinking periods can be changed to distinguish them. However, as a remark, the display operation of extinguished light shown in the above embodiment is an effective display operation that is particularly easy for the observer to confirm. If the technical idea of the present application is extended, the operation of the series of optical transmission type automatic closing devices is divided into stages as appropriate, and the presence or absence of a failure in each stage is made to correspond to the difference in the final display operation, thereby making the range of the failure smaller. Although it is conceivable to specify the range, it is particularly important to be able to immediately determine the range presented in the embodiment, that is, whether or not there is a failure (fault) between the vehicle-mounted device and the optical receiver, as described above. There are significant advantages.

[0013]

As described above in detail, the optical transmission type automatic closing device for a railway according to the present invention includes a closing device, a station device for operating the closing device, and a vehicle-mounted device provided in the train for transmitting an optical signal. When the specific optical signal transmitted from the in-vehicle device is received and the corresponding predetermined operation of each related device is completed, this is notified to the in-vehicle device operator by the predetermined display operation of the reaction lamp provided on the display unit. In the optical automatic closing device consisting of a light receiving device configured to inform the device, the light receiving device, when a predetermined optical signal arrives from the in-vehicle device and receives it, this effect is indicated by the reaction lamp. Since the configuration is made so that the operator of the in-vehicle device is informed by the second predetermined display operation, it is possible for the in-vehicle device operator to surely know that the optical communication between the in-vehicle device and the optical receiver has not been performed, and to switch to the spare in-vehicle device. It is possible to eliminate the malfunction of the optical transmission type automatic closing device by simple countermeasures such as replacement or approaching the receiving device, or confirm that it is truly a failure and promptly contact the appropriate department And so on. In addition, if optical communication is performed between the in-vehicle device and the optical receiving device, but a predetermined response cannot be obtained, it is necessary to specify a range of the failed portion as a failure of another portion of the optical transmission type automatic closing device. The time required for repairs by equipment maintenance personnel can be reduced.

[0014] In addition to the above-mentioned structure, infrared light is used as the light signal, and a second light of the reaction lamp for notifying that a predetermined light signal has arrived from the vehicle-mounted device and has received it.
The predetermined display operation is configured so that the constantly lit reaction lamp is extinguished for a predetermined period, so that the operator of the vehicle-mounted device determines whether or not optical communication between the vehicle-mounted device and the optical receiver is normally performed. Easy and reliable visual recognition.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of an on-vehicle device and an optical receiving device that constitute an optical transmission type automatic closing device according to the present invention.

FIG. 2 is an electric circuit block diagram showing one embodiment of the optical receiving device of the optical transmitting type automatic closing device of the present invention.

FIG. 3 is a waveform chart for explaining the operation of each part of the embodiment of the optical transmission type automatic closing device according to the present invention.

FIG. 4 is a schematic plan view of a railway stop part showing a part of a device group relating to the optical transmission type automatic closing device of the present invention.

FIG. 5 is a schematic configuration diagram of an optical receiving device and a station device that constitute the optical transmission type automatic closing device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Light receiving device, 15 ... Display part, 15A ... Reaction lamp, 20 ... In-vehicle device, 30 ... Station device, T ... Train.

Claims (2)

(57) [Claims] 1. An obstruction device attached to a railway, a station device installed in a departure yard to operate the obstruction device, an on-vehicle device provided on a railway vehicle and transmitting a unique optical signal, Standing beside, receives an optical signal transmitted from the on-vehicle device, sends an electric signal corresponding to the optical signal to the station device installed in the vicinity and transmits the electric signal corresponding to the optical signal to the closing device via the station device. A predetermined operation is performed, and an electric signal indicating that the operation is completed is received from the closing device via the station device, and the vehicle-mounted device operation on the train stopped at the station by the predetermined display operation of the reaction lamp provided on the display unit. In a light transmitting automatic closing device comprising a light receiving device that informs the person of the completion of the operation of the closing device, the light receiving device,
When a predetermined optical signal arrives and is received from the in-vehicle device, this is notified to the operator of the in-vehicle device by a second predetermined display operation different from the first predetermined display operation of the reaction lamp. An optical automatic closing device characterized by being constituted. 2. A second predetermined display operation of the reaction lamp for notifying that a predetermined optical signal has arrived from the in-vehicle device and has been received while using infrared light as the optical signal. The optical transmission type automatic closing device according to claim 1, wherein the light is turned off for a predetermined period.