JP2003261029A - Monitor for level crossing safety device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To grasp a cause of a trouble in an early stage, and to rapidly restore the trouble when the trouble of a level crossing safety device is detected. <P>SOLUTION: A monitor for the level crossing safety device comprises a signal input unit 401 to input signals to relay contacts R1-R16, a signal processing unit 403 to add time information to them, an operational condition storage unit 404 to store the relay contacts with the time information added thereto, a sequence pattern setting unit 405 and a storage unit 406 to set and store a sequence check pattern to determine the trouble of the level crossing safety device, a comparison and determination means to determine the trouble of the level crossing safety device by comparing the sequence check pattern with the relay contact information with the time information added thereto, and a transmission unit 409 to output the relay contact information with the time information stored in the operational condition storage unit 404 added thereto and the result of comparison and determination output from the comparison and determination unit 407. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a railroad crossing security equipment monitoring device, and more particularly to a railroad crossing security equipment for monitoring the operating state of railroad crossing security equipment such as a railroad relay and making a failure judgment of the railroad crossing security equipment. The present invention relates to a monitoring device.

[0002]

2. Description of the Related Art Conventionally, failure information (relay contacts) from a failure detector is transmitted to a centralized monitoring device via a cable as a monitoring device for railroad crossing security equipment, and when there is a failure, the device number is sent to the centralized monitoring device. Was detected in.

[0003]

Although it is possible to know which equipment is in failure in the conventional apparatus, it has not been possible to grasp the cause of the failure. Therefore, it may take a long time to recover from the failure.

The present invention has been made in order to solve such a problem, and when a failure of the railroad crossing security equipment is detected, the cause of the failure can be grasped at an early stage, and the failure can be quickly recovered. Obtain a level crossing security equipment monitoring device that can be carried out.

[0005]

SUMMARY OF THE INVENTION The present invention is a railroad crossing security equipment monitoring device for monitoring railroad crossing security equipment composed of relays, each of which indicates an operating state of each relay of the railroad crossing security equipment. Signal input means for inputting relay contact status information, time information adding means for adding time information to each of the input relay contact status information, and operation for storing the relay contact status information with the time information added A sequence pattern in which a state storage means and a sequence check pattern for performing a failure determination of the railroad crossing safety facility based on the relay contact state information added with the time information stored in the operation state storage means are input. Input means, sequence pattern storage means for storing the input sequence check pattern, and the sequence pattern recording means. By comparing the sequence check pattern stored in the means with the relay contact state information added with the time information stored in the operation state storage means, the failure of the railroad crossing safety equipment is determined. Comparison / determination means, output means for outputting the relay contact state information added with the time information stored in the operation state storage means, and the comparison / determination result output from the comparison / determination means. This is a crossing security equipment monitoring device.

Further, the sequence pattern input means is composed of an interface device connected to an external device.

Further, the railroad crossing security equipment monitoring device is connected to a central monitoring device at a remote place via a predetermined transmission line, and the sequence check pattern is transmitted to the sequence pattern input means by the transmission line. Via the central monitoring device.

[0008]

FIG. 1 is a diagram showing an overall configuration of a railroad crossing security facility monitoring device (reference numeral 40) and its periphery according to an embodiment of the present invention. In FIG. 1, reference numeral 10 denotes a central monitoring device, which centrally monitors information from each level crossing safety equipment monitoring device. The central monitoring device 10 accumulates status information and failure information from the respective level crossing safety equipment monitoring devices 40 described later for a certain period of time, and when a failure is recognized, the status of each relay before and after the failure detection is a timing chart or a list. It is possible to confirm the details of the failure state at a distance by displaying such as. Reference numeral 20 denotes a device that performs remote transmission between the central monitoring device 10 and each level crossing security equipment monitoring device 40, and is a remote transmission device master station provided on the side of the central monitoring device 10. Reference numeral 30 is a remote transmission device slave station provided on the side of the railroad crossing security equipment monitoring device 40 that also performs remote transmission. Reference numeral 40 denotes a railroad crossing safety equipment monitoring device that monitors railroad crossing safety equipment (railroad crossing device) configured by a relay provided at a railroad crossing. Reference numeral 50 is a railroad crossing security equipment to be monitored, and a relay output and an analog output are connected to the railroad crossing security equipment monitoring device 40 by a cable. Level crossing security equipment monitoring device 40 and level crossing security equipment 50
Are provided in plurals as shown in FIG. 1 (the same number are connected in a one-to-one manner). Reference numeral 21 is a remote transmission bus that connects the remote transmission device master station 20 and the remote transmission device slave station 30, and 47 connects the remote transmission device slave station 30 and the railroad crossing security equipment monitoring device 40. It is a transmission bus.

The operation will be briefly described. From the railroad crossing safety equipment 50 composed of relays, relay contact outputs R1 to R16 (state information of railroad crossing safety equipment) indicating the operation order of each relay and analog output A1 (battery voltage etc.).
Are supplied to the railroad crossing security equipment monitoring device 40. In the level crossing security equipment monitoring device 40, time information is added to the supplied information, and a failure is determined using a predetermined sequence check pattern based on the information, and the determination result is the failure information. , State information of railroad crossing security equipment with time information (relay contact output R1
~ R16) are output. The output information is transmitted to the central monitoring device 10 via the transmission bus 47, the remote transmission device slave station 30, the remote transmission bus 21, and the remote transmission device 20. The central monitoring device 10 accumulates the status information and the failure information from the respective level crossing security equipment monitoring devices 40 for a certain period of time. When a failure is recognized, the status of each relay before and after the failure detection is shown in a timing chart or a list. The details of the failure status can be confirmed at a distance by displaying.

FIG. 2 is a configuration diagram showing a configuration of a railroad crossing security equipment monitoring device 40 according to an embodiment of the present invention. In FIG. 2, 41 is a contact input circuit to which the relay contacts R1 to R16, which are state information of the railroad crossing security equipment 50, are input, and 42 is an analog signal such as a battery voltage input from the railroad crossing security equipment 50. The analog input circuit 43 is supplied with a relay contact input and an analog input, and by using the information, addition of time information at the time of change, failure determination using a sequence check pattern, and measurement of railroad crossing ringing time. -One-chip microcomputer that performs processing such as calculation, 44 is a non-volatile memory that stores the processing result of the one-chip microcomputer 43, 45 is a serial interface to which the sequence check pattern is input from the outside, and 46 is the one-chip microcomputer 43 A transmission interface for outputting the processing result of the above, 47 is the transmission bus shown in FIG. 1, and 48 is Connected to the serial interface 45 a is an external input.

The operation will be described. Railroad crossing security equipment 50
Information of the relay contacts R1 to R16 of the contact input circuit 41
Is converted to TTL level by
Is supplied to. The supplied information is 1 chip microcomputer 4
The time information is added internally and stored in the non-volatile memory 44. Analog output A1 in railroad crossing security facility 50
The level of (battery voltage or the like) is converted by the analog input circuit 42 and supplied to the one-chip microcomputer 43. The 1-chip microcomputer 43 performs sampling of analog input at a constant cycle, and when the level changes, the analog input is stored in the nonvolatile memory 44. The serial interface 45 takes in the data of the sequence check pattern from the external input 48, performs the data conversion by the 1-chip microcomputer 43, and then the nonvolatile memory 44.
Memorized in. As the non-volatile memory 44, an EEPROM or a static RAM backed up by a battery is used. Relay contact input R1 from railroad crossing safety equipment 50
The states of R16 and the analog input A1 are constantly checked according to the sequence check pattern data stored in the non-volatile memory 44, and the failure is determined.

When there is a change in the relay contact output and analog output of the level crossing security equipment 50, time information at the time of change is added, a failure is determined using a sequence check pattern, and the sounding time of the level crossing is calculated and calculated. Then, the resultant data is output to the transmission bus 47 via the transmission interface circuit 46 in a predetermined format.
Information transmission via the transmission bus 47 can also be performed by polling.

The above calculation is performed as follows. In the 1-chip microcomputer 43, a time counter that counts up every 1 msec is provided, data is taken in by sampling the relay contact input and analog input at a constant cycle, and the change in data is recognized by collation multiple times. In this case, the data of the time counter is added to the input information to make the change information. The time counter displays hours, minutes, seconds (10m
(sec resolution) data, and the time is calibrated once a day by a command from the central monitoring device 10. Thereby, the central monitoring device 10 and each level crossing security equipment monitoring device 40 can be synchronized in time.

FIG. 3 is a functional block diagram summarizing the operation of the railway crossing security equipment monitoring device 40 of FIG. 2 described above. Figure 3
In the figure, 401 is a relay contact R of the railroad crossing safety equipment 50.
1 to R16 and the like is a signal input unit,
Reference numeral 403 is a time signal generation unit that generates time information to be added to the input state information of the relay contacts R1 to R16, and 403 is a signal processing unit that performs processing such as addition of the time information. Is an operation information storage unit that stores state information to which the time information has been added by the signal processing unit 403. An example of data stored in the motion information storage unit 404 is shown in FIG. As shown in FIG. 4, state data is stored together with time data. The time data is DATA1 indicating XX hour and DATA indicating XX minute.
2, XX. It is composed of DATA3 indicating XX seconds (time data: (DATA1, DATA2, DATA
3) x 10 msec). The state data indicates R1 to R16 by 1 bit each, and DAT indicating R1 to R8.
It is composed of A4 and DATA5 indicating R9 to R16 (status data: each 16-bit status of (DATA4, DATA5)).

Returning to the explanation of FIG. 3, reference numeral 405 is a sequence pattern setting section for setting a sequence check pattern from the outside, and 406 is a sequence in which the sequence check pattern set by the sequence pattern setting section 405 is stored. It is a pattern storage unit. FIG. 5 shows an example of the sequence check pattern. Now, in the case where the train detection device that detects a train passing through a railroad crossing is a controller, A is the first descending starting point, the name of the A point crossing control PR relay is APR, and B is the second starting point. Then, the name of the B point crossing control PR relay is BPR, and D is the name of the D point crossing control PR relay at the third starting point, and C
However, at the end point, the name of the C point crossing control PR relay is CPR
And The name of the alarm control reaction relay is RBPR.

The upper diagram of FIG. 5 shows RBPR, BPR and CP.
The pattern is checked by the contact input of R,
Condition 1 and condition 2 for failure detection are defined as follows, and when condition 1 or condition 2 is satisfied, it is determined to be a failure. Condition 1: RBPR = ON when BPR rises Condition 2: RBPR = ON when CPR rises

The lower diagram of FIG. 5 shows RBPR, BPR and DP.
The pattern is checked by the contact input of R,
Condition 3 and condition 4 for detecting a failure are defined as follows, and when condition 3 or condition 4 is satisfied, it is determined to be a failure. Condition 1: Less than 1 second from BPR rising to RBPR = ON Condition 2: Less than 1 second from DPR rising to RBPR = ON

Returning to the explanation of FIG. A comparison / determination unit 407 compares the sequence check pattern stored in the sequence pattern storage unit 406 with the state information added with the time information stored in the operation information storage unit 404 to determine a failure. Is. A comparison / determination unit 407 generates an operation instruction signal based on the comparison / determination result by the comparison / determination unit 407.
The operation instruction unit outputs an operation instruction signal together with the determination result. Reference numeral 409 denotes a transmission processing unit that externally outputs the state information added with the time information stored in the operation information storage unit 404, the comparison / determination result and the operation instruction signal output from the operation instruction unit. With such a configuration, the operating state of railroad crossing security equipment such as a railway configured with relays is stored and monitored together with time information, and equipment failure determination and sequence analysis before and after failure are performed.

FIG. 6 shows another example of the sequence check pattern in the railroad crossing safety equipment monitoring device 40. In FIG. 6, R
The pattern is checked by the contact input of BPR, BPR and CPR, and BP is turned on when RBPR is OFF.
When R or CPR is turned on, the failure is immediately detected. The pattern in this case is expressed as follows. Failure detection: RBPR = OFF AND (BPR = ON
ORCPR = ON) Failure judgment time = immediate

FIG. 7 is another example of the sequence check pattern in the railroad crossing safety equipment monitoring device 40 as in the above case.
In FIG. 7, the pattern is checked by the relay contact input of BPR, DPR, and RBPR, and when the BPR or DPR is in the OFF state and the RBPR remains in the OFF state for 1 second or longer, the failure occurs when it becomes ON. To detect. The pattern in this case is expressed as follows. Fault detection: (BPR = OFF OR DPR = OFF) AND (ON after RBPR = OFF state continues for 1 second or longer) Fault determination time = 1 second or longer

The level of the analog input can be set freely and can be incorporated in the sequence check pattern. Such a failure of the railroad crossing safety equipment can be detected by checking a sequence pattern including time elements of each relay contact input and analog input.

The sequences of the level crossing security equipment 50 are not all the same, and the sequence check pattern can freely combine each relay contact input and analog input according to each sequence. There are the following two methods of setting.
The first method is from the external input 48 to RS-232C.
Or, connect to an external device with a general-purpose interface such as RS-422, and use 1 through the serial interface 45.
The data is taken into the chip microcomputer 43, converted, and then stored in the non-volatile memory 44. This method is used when the sequence check pattern is changed in the field. As a second method, the central monitoring device 10 to the remote transmission device master station 20 and the remote transmission bus 2 are used.
1, the remote transmission device slave station 30, the transmission bus 47, and the transmission interface circuit 46 to transmit the data of the sequence check pattern in a predetermined data format and send the data to the one-chip microcomputer 43.
In this case also, the data is converted by the chip microcomputer 43 and then stored in the nonvolatile memory 44. This method, which is used when the sequence check pattern is changed remotely, makes it possible to easily change the failure determination pattern remotely.

In the central monitoring device 10, the operation and time information of each relay from each railroad crossing security equipment monitoring device 40 is taken in, and for the safety of train operation such as the operation time of each relay, the ringing time of the railroad crossing security equipment, etc. The operation time that requires management can be aggregated and managed. Further, by automatically performing statistical processing on the time required for such management and performing trend monitoring, preventive maintenance of the railroad crossing safety equipment itself can be performed and accidents can be prevented.

As described above, in the present embodiment, the sequence pattern check including the time elements is performed from each of the relay contact outputs R1 to R16 and the analog output A1 from the railroad crossing security equipment 50 to check the railroad crossing security equipment. Since the state is monitored and the failure is determined, when the failure of the railroad crossing security equipment 50 is detected, the cause of the failure can be easily analyzed from the detailed data in which the states before and after the failure detection are stored to grasp the cause of the failure. Can be carried out early, and the restoration of the failure can be carried out promptly. Further, since maintenance such as changing the setting of the sequence check pattern can be easily performed on site or remotely, it is excellent in maintainability and convenience. Furthermore, by measuring and managing the time required for the safety of train operation, such as the sounding time of railroad crossings, from the operating time of the relay,
Preventive maintenance of equipment can be performed.

[0025]

The present invention is a railroad crossing safety equipment monitoring device for monitoring railroad crossing safety equipment composed of relays, wherein each relay contact state information indicates the operating state of each relay of the railroad crossing safety equipment. Signal input means for inputting, time information adding means for adding time information to the input relay contact state information, operation state storage means for storing the relay contact state information with time information added, Sequence pattern input means for inputting a sequence check pattern for determining a failure of the railroad crossing safety equipment based on the relay contact state information added with the time information stored in the operating state storage means, and A sequence pattern storage means for storing the sequence check pattern, and a sequence pattern storage means for storing the sequence check pattern. By comparing the sequence check pattern and the relay contact state information to which the time information stored in the operation state storage means is added, a comparison / determination means for determining a failure of the railroad crossing safety equipment, The relay contact state information added with the time information stored in the operation state storage means and the comparison /
Since this is a railroad crossing security equipment monitoring device equipped with an output means for outputting the comparison / judgment result output from the judgment means, when the failure of the railroad crossing security equipment is detected, the cause of the failure can be grasped at an early stage. It is possible to quickly recover from the failure.

Further, since the sequence pattern input means is composed of an interface device connected to an external device, the sequence check pattern can be easily changed on site.

Further, the railroad crossing security equipment monitoring device is connected to a central monitoring device at a remote place via a predetermined transmission line, and the sequence check pattern is transmitted to the sequence pattern input means by the transmission line. The sequence check pattern can be easily changed from a remote place since the data is input from the central monitoring device via the.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an overall configuration of a railroad crossing safety equipment monitoring device and its surroundings according to the present invention.

FIG. 2 is a block diagram showing an internal configuration of a railroad crossing security facility monitoring device according to the present invention.

FIG. 3 is a functional block diagram showing functions of the railway crossing security equipment monitoring device according to the present invention.

FIG. 4 is an explanatory diagram showing an example of data stored in an operation information storage unit of the railroad crossing safety equipment monitoring device according to the present invention.

FIG. 5 is an explanatory diagram showing an example of a sequence check pattern of the railroad crossing safety equipment monitoring device according to the present invention.

FIG. 6 is an explanatory diagram showing an example of a sequence check pattern of the railroad crossing safety equipment monitoring device according to the present invention.

FIG. 7 is an explanatory diagram showing an example of a sequence check pattern of the railroad crossing safety equipment monitoring device according to the present invention.

[Explanation of symbols]

10 central monitoring device, 20 remote transmission device master station, 21
Remote transmission bus, 30 remote transmission device slave station, 40 railroad crossing security equipment monitoring device, 41 contact input circuit, 42 analog input circuit, 43 1-chip microcomputer, 44 non-volatile memory, 45 serial interface, 46 transmission interface circuit, 47 transmission bus , 48 external input,
50 crossing security equipment, 401 signal input unit, 402 time signal generation unit, 403 signal processing unit, 404 operation information storage unit, 405 sequence pattern setting unit, 406
Sequence pattern storage unit, 407 comparison / determination unit, 4
08 operation instruction unit, 409 transmission processing unit.

Claims (3)

[Claims] 1. A railroad crossing security equipment monitoring device for monitoring railroad crossing security equipment composed of relays, wherein relay contact state information indicating an operating state of each relay of the railroad crossing security equipment is input. Signal input means, time information adding means for adding time information to each of the input relay contact state information, operation state storage means for storing the relay contact state information with the time information added, and the operation state Sequence pattern input means for inputting a sequence check pattern for judging a failure of the railroad crossing safety equipment based on the relay contact state information to which the time information stored in the storage means is added, and the input Sequence pattern storage means for storing the sequence check pattern, and before the sequence pattern storage means stores the sequence pattern storage means. By comparing the sequence check pattern and the relay contact state information to which the time information stored in the operation state storage means is added, a comparison / determination means for determining a failure of the railroad crossing safety equipment, The relay contact state information to which the time information stored in the operation state storage means is added, and output means for outputting the comparison / determination result output from the comparison / determination means are provided. Level crossing security equipment monitoring device. 2. The railroad crossing security equipment monitoring device according to claim 1, wherein the sequence pattern input means comprises an interface device connected to an external device. 3. The railroad crossing security equipment monitoring device is connected to a central monitoring device at a remote place via a predetermined transmission path, and the sequence check pattern is transmitted to the sequence pattern input means by the transmission path. The railway crossing security equipment monitoring device according to claim 1 or 2, wherein the central monitoring device inputs the data via a vehicle.