JP2023104518A - Passenger guiding system and monitoring method of passenger guiding system - Google Patents

Abstract

To solve the conventional problems in that when a computing machine having the same function as an operation computing machine is provided as backup at the time of occurrence of abnormality, it is not in use except when the backup is operated and this results in an excessive facility.SOLUTION: As a passenger guiding system configured of a plurality of computing machines, each of the plurality of computing machines includes a monitoring unit and a plurality of common functions. A first priority is set to each of the plurality of computing machines and a second priority is set to each of the plurality of common functions. Each of the plurality of computing machines executes a function having the second priority corresponding to its own first priority and determines a function to be executed by the other computing machine by mutual state monitoring by the monitoring units between the computing machine and the other computing machine.SELECTED DRAWING: Figure 1

Description

The present invention relates to a passenger guidance system composed of a plurality of guidance devices and a method of monitoring the passenger guidance system.

As a conventional passenger guidance system, in Patent Document 1, when an operational abnormality is detected, a system that acquires corrected guidance information corresponding to the operational abnormality and carries out passenger guidance according to the corrected guidance information is disclosed.

Further, in Patent Document 2, a plurality of control devices (computers) having a plurality of information processing means (objects) are configured, and when an abnormality occurs, another computer having the same information processing means (objects) acts as a substitute for information processing. A train operation management system is disclosed.

JP 2019-18688 A JP-A-5-139312

As a backup computer in case of an abnormality, it is premised that it is composed of a substitute computer having the same function as the operating computer, and this computer is not used and becomes a surplus facility except during the backup operation.

In order to solve the above problems, one representative passenger guidance system of the present invention comprises a plurality of computers, each of which has a monitoring unit and a plurality of common functions, each of which comprises A first priority and a second priority are set for each of a plurality of common functions, and each of the plurality of computers has a function having a second priority corresponding to its own first priority. Along with execution, the function to be executed by the other computer is determined by mutual status monitoring with the other computer by the monitoring unit.

According to the present invention, it is possible to give priority to a plurality of functions possessed by each of a plurality of computers constituting a passenger information system, minimize functions that are degraded when an abnormality occurs, and reduce the number of alternative devices. It becomes possible.

FIG. 1 is a diagram showing an example of the device configuration of a passenger guidance system according to an embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments according to the present invention will be described as modes for carrying out the present invention with reference to the drawings. It should be noted that the present invention is not limited by these examples.

FIG. 1 is a diagram showing an example of the device configuration of a passenger guidance system according to an embodiment of the present invention.
The first computer 101, the second computer 201, and the third computer 301 respectively have first functions (102, 202, 302), second functions (103, 203, 303), and third functions ( 104, 204, 304), monitoring units (105, 205, 305) and external equipment communication units (106, 206, 306).

In light of the passenger guidance system, each computer (101, 201, 301) corresponds to, for example, a guidance device installed at a station, and the first to third functions are, for example, guidance control, broadcast output, Functions such as display output to departure signs are supported.

A priority order is set for each of the first computer 101, the second computer 201, and the third computer 301. In this embodiment, the first computer 101, the second computer 201, and the third computer 301 The order of priority shall be higher.

Also, the functions of the first computer 101, the second computer 201, and the third computer 301 are also given priorities. shall have the highest priority in order of function.

Further, the first computer 101, the second computer 201, and the third computer 301 mutually obtain state information (401, 402, 403) of other computers by their respective monitoring units (105, 205, 305). By exchanging data by sending and receiving data, each other determines and recognizes the operation mode of the other computer.

According to the above priority,
- The first computer 101 with the highest priority executes the first function 102 with the highest priority.
- The second computer 201 with the second priority judges that the first computer 101 is executing the first function 102 by the monitoring unit 205, and executes the second function 203 with the second priority. Execute.
- The third computer 301 with the third highest priority has the first computer 101 executing the first function 102 and the second computer 201 executing the second function 203 by the monitoring unit 305 . is determined, and the third function 304 having the third priority is executed.

Guidance control for the external equipment 501 is performed by each computer (101, 201, 301) executing each function via each external equipment communication section (106, 206, 306).

Next, the operation mode when each of the first computer 101, the second computer 201, and the third computer 301 stops will be described.

(1) When the first computer 101 is stopped When the second computer 201 determines that the first computer 101 and its first function 102 are stopped from the state information 401 and 402 exchanged by the monitoring unit 205, the execution The second function 203 that has been running is stopped, and the first function 202 is executed instead of the first computer 101 .
The third computer 301 stops the first computer 101 and causes the second computer 201 to execute the first function 202 and stop the second function 203 based on the status information 402 and 403 exchanged by the monitoring unit 305 . When determined, the third function 304 that was being executed is stopped, and the second function 303 is executed instead of the second computer 201 .
As described above, the passenger guidance system degenerates functions with lower priority by stopping the third function itself.

(2) When the second computer 201 stops The first computer 101 continues the operation of the first function 102 .
When the third computer 301 determines that the second computer 201 and the second function 203 are to be stopped from the status information 402 and 403 exchanged by the monitoring unit 305, the third computer 301 stops the running third function 304, It executes the second function 303 instead of the second computer 201 .
As described above, the passenger guidance system degenerates functions with lower priority by stopping the third function itself.

(3) When the Third Computer 301 Stops The first computer 101 continues the operation of the first function 102, and the second computer 201 continues the operation of the second function 203, respectively.
Since the third function 304 executed by the third computer 301 is stopped, the passenger guidance system degenerates the functions with lower priority by stopping the third function itself.

As described above, when a constituent computer stops, it is possible to degenerate a function with a lower priority and continue the operation mode of a predetermined function.

Also, when recovering from a stop, the state information may be used to restore the original state (original functional configuration).

Here, the state information 401, 402, and 403 may be recorded including the states of other computers recognized by the source computer. For example, the state information 401 includes the state of the second computer 201 and the state of the third computer 301 recognized by the second computer.

As a result, for example, when the first computer 101 fails to receive the status information 403 from the third computer 301, the first computer 101 receives the status information 401 from the second computer 201. By comparing the state of the third computer 301 and the failure to receive the state information 403, it is determined whether the third computer 301 is stopped or the state information 403 is missing.

Although the case where there are three computers has been described as an embodiment of the present invention, the present invention can be applied to a case of two computers or a case of four or more computers. Moreover, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention.

101: first computer, 201: second computer, 301: third computer,
102, 202, 302: first function, 103, 203, 303: second function,
104, 204, 304: third function, 105, 205, 305: monitoring unit,
106, 206, 306: external equipment communication unit, 401, 402, 403: status information,
501: External equipment

Claims (5)

A passenger information system comprising a plurality of computers,
Each of the plurality of computers has a monitoring unit and a plurality of common functions,
A first priority is set for each of the plurality of computers and a second priority is set for each of the plurality of common functions,
Each of the plurality of computers executes the function having the second priority corresponding to the first priority of itself, and the mutual status monitoring with the other computers by the monitoring unit determining said functions performed by a computer in . A passenger guidance system according to claim 1,
When each of the plurality of computers determines that the function being executed by the other computer has been stopped by the monitoring unit, the computer itself executes the function based on the first priority of the other computer. a passenger information system that stops the function being executed and determines whether the function that has been executed by the other computer is to be executed by itself. A passenger guidance system according to claim 2,
When each of the plurality of computers has a lower priority than the first priority of the other computer, each of the computers stops the function being executed by itself and is executed by the other computer. A passenger guidance system characterized in that it itself executes the functions described above. A passenger guidance system according to any one of claims 1 to 3,
Each of the plurality of computers exchanges state information of all of the plurality of computers recognized by the other computers via the monitoring unit, and checks whether there is an error in the state information of the other computers recognized by itself. A passenger guidance system characterized by determining whether or not. A monitoring method for a passenger information system comprising a plurality of computers having a plurality of common functions,
setting a first priority to each of the plurality of computers and a second priority to each of the plurality of common functions;
Each of the plurality of computers executes the function having the second priority corresponding to the first priority of itself, and mutually monitors the status with the other computers to be executed by the other computers. and if it is determined to stop the function, the function being executed by itself is stopped based on the first priority of the other computer and the other computer executes it. A method for monitoring a passenger information system, characterized by determining whether the function performed by the passenger guidance system is to be executed by itself.

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