JP2023172722A - Failure sign diagnosis system and failure sign diagnosis method for door system - Google Patents

Abstract

To enable a failure sign diagnosis of a whole door system including not only a drive part of each door but also a management part, a communication device, etc.SOLUTION: A failure sign diagnosis system for a door system having a management unit for instructing an opening/closing timing to a plurality of opening/closing devices for controlling the opening/closing of each of a plurality of doors includes a data input unit for inputting information relating to the opening/closing time of each of the plurality of doors, a storage unit for storing the information relating to the opening/closing time of each of the plurality of doors including the past time, and a failure sign diagnosis unit for comparing the information relating to the opening/closing time with the information relating to the opening/closing time including the past time, diagnosing that there is a failure sign in the opening/closing devices of some of the doors when the opening/closing time of some of the doors is different from the past opening/closing time, and diagnosing that there is a failure sign in the management unit when the opening/closing time of all of the plurality of doors is different from the past opening/closing time.SELECTED DRAWING: Figure 1

Description

The present invention relates to a predictive failure diagnosis system and a predictive failure diagnosis method for door systems.

In order to improve the efficiency and save labor of railway maintenance work, there is a need to develop predictive failure diagnostic technology for railway ground equipment. Among railway ground equipment, platform door devices installed on station platforms have a major impact, such as delays in train operation, if they malfunction. Therefore, there is a need to develop a predictive failure diagnosis technique that detects and diagnoses the signs of a failure before it occurs.

As background technology for the present invention, there is a technology described in Patent Document 1. Patent Document 1 discloses that in a switchgear that can be opened and closed by driving a motor, a drive current acquisition section acquires the drive current of the motor, and a diagnosis section detects the change in the drive current acquired by the drive current acquisition section over time. A technique for identifying a current waveform and diagnosing the health of a switchgear based on the current waveform is described.

JP 2021-130378 Publication

Patent Document 1 discloses a method for diagnosing a sign of failure of a drive unit of each door in a platform door system installed on a transportation platform. However, the platform door system also includes a command device that controls the opening and closing operations of each door, and a communication device that opens and closes in conjunction with the vehicle door, so signs of failure in these devices must also be detected. There is a need.

Therefore, an object of the present invention is to provide a technique that enables predictive failure diagnosis of the entire platform door system, including not only the drive unit of each door but also the command device, communication device, and the like.

In order to solve the above-mentioned problems, one of the typical failure sign diagnosis systems of the present invention includes a plurality of doors, a plurality of opening/closing devices that control the opening/closing of each of the plurality of doors, and a system for controlling the plurality of opening/closing devices. A failure sign diagnosis system for diagnosing failure signs of a door system having a management unit that commands the opening/closing timing of each of a plurality of doors, the data input unit inputting information regarding the opening/closing time of each of the plurality of doors from the door system; A storage section that stores information regarding the opening/closing times of each of the multiple doors obtained from the data input section, including past information, and information regarding the opening/closing times obtained from the data input section and past opening/closing times obtained from the storage section. The predictive failure diagnosis unit is equipped with a failure sign diagnosis unit that diagnoses failure signs of the door system by comparing the included information, and the failure sign diagnosis unit diagnoses the opening/closing time of some doors among the plurality of doors and the past opening/closing times of the door. If the opening/closing devices of some of the doors are different from each other, it is diagnosed that there is a sign of failure in the opening/closing device of some of the doors, and if the opening/closing times of all the doors are different from the past opening/closing times of all the doors, the management department is notified of the failure. It is diagnosed when there are signs.

According to the present invention, in a door system, such as a platform door system, that includes a plurality of opening/closing devices and a management unit that controls their opening/closing timing, it is possible to diagnose signs of failure of the entire door system.
Problems, configurations, and effects other than those described above will be made clear by the description in the following detailed description.

1 is a diagram showing a block configuration of a failure sign diagnosis system and a door system to be diagnosed according to a first embodiment of the present invention; FIG. 3 is a diagram illustrating an example of a processing flow of a storage unit in Example 1. FIG. FIG. 3 is a diagram showing an example of a processing flow of a failure sign diagnosis section in the first embodiment. FIG. 3 is a diagram illustrating an example of a processing flow of a failure mode determination process for determining each failure mode. FIG. 3 is a diagram illustrating an example of a processing flow of failure mode determination processing for each door by the failure sign diagnosis unit in the first embodiment. FIG. 2 is a diagram showing a block configuration of a failure sign diagnosis system, a door system to be diagnosed, and an intervening vehicle according to a second embodiment of the present invention. 7 is a diagram illustrating an example of a processing flow of a storage unit in Example 2. FIG. 7 is a diagram illustrating an example of a processing flow of a failure sign diagnosis section in Example 2. FIG. FIG. 3 is a diagram illustrating an example of a processing flow of a failure mode determination process for determining each failure mode.

Embodiments 1 and 2, which are modes for carrying out the present invention, will be described below with reference to the drawings. Note that the present invention is not limited to these Examples. In addition, in the description of the drawings, the same parts are denoted by the same reference numerals.

Example 1 of the present invention will be described with reference to FIGS. 1 to 5.
(Block configuration)
FIG. 1 is a diagram showing a block configuration of a failure sign diagnosis system 100 and a door system 200 to be diagnosed according to a first embodiment of the present invention.

The failure sign diagnosis system 100 includes a data input section 110, a storage section 120, and a failure sign diagnosis section 130.

The door system 200 includes a plurality of doors 210 and a management section 220, and each door 210 includes one opening/closing device 211 inside.
Here, the door system is intended for platform doors installed on platforms such as stations, but is not limited to this. For example, it is also applicable to door systems for vehicle doors mounted on trains and the like. This point also applies to Example 1 and Example 2, which will be described later.

First, the individual components of the failure sign diagnosis system 100 will be explained.
The data input unit 110 inputs the opening/closing time information (opening time and closing time) of each door 210 from the management unit 220 of the door system 200 and outputs the opening/closing time information to the storage unit 120 and the failure sign diagnosis unit 130. Note that the method of inputting the opening/closing time information to the data input section 110 is not through input from the management section 220 but may be input directly from the opening/closing device 211 of each door 210 without passing through the management section 220.

In addition, if the door system 200 has a function that can send data to a server installed in a vehicle depot or the like or a storage area built on a cloud environment, a predictive failure diagnosis system can be used using public wireless communication, etc. By implementing 100 in an environment that allows connection to this storage area, input may be made from this storage area. This point also applies to Example 2, which will be described later.

The storage unit 120 inputs the opening/closing time information of each door 210 from the data input unit 110 and the diagnosis status from the failure sign diagnosis unit 130, and updates the reference opening/closing time information of each door 210 based on the input information. and store it in the storage area. At that time, door identification information may be assigned to each door 210 and stored together with this door identification information.

Furthermore, the storage unit 120 acquires reference opening/closing time information (reference opening time and reference closing time) of each door 210 from the storage area and outputs it to the failure sign diagnosis unit 130 . The operation mode (processing flow) of the storage unit 120 will be described later.

Here, regarding the storage area, if a storage area such as a memory, a hard disk, or an SSD exists in the predictive failure diagnosis system 100, the storage area may be stored within that storage area or externally via wired or wireless communication. If it can be connected to a storage area, it may be stored in that storage area. This point also applies to Example 2, which will be described later.

The failure sign diagnosis unit 130 inputs the opening/closing time information of each door 210 from the data input unit 110 and the standard opening/closing time information of each door 210 from the storage unit, and diagnoses failure signs based on the input information. Then, the diagnostic results are output to the driver, driving dispatcher (driving dispatch center), inspection and repair area (vehicle depot), etc. The operation mode (processing flow) of the failure sign diagnosis section 130 will be described later.

Next, individual components of door system 200 will be described.
The door 210 performs an opening or closing operation by an opening/closing device 211.
The opening/closing device 211 includes a drive device (not shown) for opening/closing the door 210, receives an opening/closing command (opening command or closing command) from the management unit 220, and opens/closes the door 210 in accordance with the opening/closing command. It also outputs to the management unit 220 whether the door 210 is open or closed.

The management unit 220 outputs opening/closing commands to the opening/closing device 211 of each door 210, and inputs the opening/closing state (open state or closed state) of each door from the opening/closing device 211. Further, the management unit 220 calculates the opening/closing time information of each door 210 from the transmission timing of the opening/closing command and the change in the opening/closing state of each door 210 received from the opening/closing device 211, and calculates the opening/closing time information of each door 210, and calculates the opening/closing time information of each door 210, and calculates the opening/closing time information of each door 210 from the transmission timing of the opening/closing command and the change in the opening/closing state of each door 210 received from the opening/closing device 211. Output to 110.

Here, the method of calculating the opening time and closing time will be described below.
・Opening time: The time from when the management unit 220 transmits the door open signal until receiving from each opening/closing device 211 that the open/closed state of each door 210 has changed to the open state. Time from transmitting the door close signal to receiving from each opening/closing device 211 that the open/close state of each door 210 has changed to the closed state

(Operation of storage unit 120)
FIG. 2 is a diagram illustrating an example of a processing flow of the storage unit 120 in the first embodiment. The execution entity of each processing step described below is a processing unit included in the storage unit 120, but the description of the entity will be omitted below.

In step S1001, reference opening/closing time information for each door 210 is acquired from the storage area and output to the failure sign diagnosis section 130.
In step S1002, the opening/closing time information of each door 210 is acquired from the data input unit 110, and the diagnosis state value is acquired from the failure sign diagnosis unit 130, respectively.

In step S1003, it is determined whether the diagnostic status value is 0 (normal), and if it is 0 (normal) (Yes), the process advances to step S1004, and if it is other than 0 (abnormal) (No), the process is end.

The subsequent processes from step S1004 to step S1008 are looped by the number of doors 210 (=opening/closing devices 211), and are performed for each opening/closing time information of each door 210.

In step S1004, the reference time information, total opening/closing time information (total opening time and total closing time), and total opening/closing frequency information (total opening frequency and total closing frequency) of each door 210 are acquired from the storage area.
In step S1005, the opening time/closing time of each door 210 obtained from the data input unit 110 is added to the total opening time/total closing time of each door 210, and the process proceeds to step S1006.

In step S1006, the value of the total number of openings/total number of closings of each door 210 is increased by 1, respectively.
In step S1007, the reference opening time information of each door 210 is updated using the following formula.
Standard opening time = Total opening time ÷ Total number of openings Standard closing time = Total closing time ÷ Total number of closings In step S1008, the updated standard opening/closing time information of each door 210 is stored in the storage area.

If the process has been completed for all doors 210, the process is terminated; otherwise, the process returns to step S1004.

(Operation of predictive failure diagnosis unit 130)
FIG. 3 is a diagram illustrating an example of a processing flow of the failure sign diagnosis unit 130 in the first embodiment. The main body that executes each processing step described below is the failure sign diagnosis unit 130, but the description of that main body will be omitted below.

In step S1101, the opening/closing time information of each door 210 is acquired from the data input unit 110, and the reference opening/closing time information of each door 210 is acquired from the storage unit 120.
In step S1102, it is determined whether the absolute value of the difference between the opening time and the reference opening time and the absolute value of the difference between the closing time and the reference closing time are each less than or equal to the threshold value _d1 for all doors 210. If Yes, the process advances to step S1103; if No, the process advances to step S1106. Details of the threshold value _d1 will be described later.

In step S1103, the value of the diagnostic state is set to 0 (normal).
In step S1104, the value of the failure sign counter of the management unit 220 and the value of the failure sign counter of all the doors 210 are both initialized to 0.
In step S1105, the diagnostic status is output to the storage unit 120, and the process ends.

In step S1106, the value of the diagnostic state is set to 1 (possibility of abnormality).
In step S1107, failure mode determination processing, which will be described later, is performed.
In step S1108, it is determined whether there is a device whose failure mode value is other than 0 in the management unit 220 or each switchgear 211. If there is (Yes), the process advances to step S1109; if there is no (No), the process advances to step S1105.
In step S1109, a failure sign alert is notified to the driver, driving command center (driving command center), inspection and maintenance area (vehicle depot), or the like. Details of the method of notifying the failure sign alert will be described later.

(Threshold value d ₁ )
Here, details of the threshold value _d1 will be explained.
The threshold value _d1 is a parameter indicating how many seconds or more the current opening/closing time is longer than the reference opening/closing time to be determined to be an abnormal value. For example, the threshold value _d1 is generally calculated from the standard deviation σ, which is calculated by collecting in advance data on the opening/closing time of each door 210 in a normal state in a number of data that can ignore the effects of operation and weather, etc. Either find and set the 3σ value that is considered a statistical outlier, or if the standard opening/closing time and maximum or minimum opening/closing time are determined in the specifications of the door 210, set the standard opening/closing time. The largest difference between the closing time and the maximum or minimum opening/closing time may be set.

(Failure mode and failure mode determination processing)
Next, details of the failure mode determination process in the failure sign diagnosis section 130 will be explained.
First, the failure mode is a signal indicating whether there is a sign of failure in the door system 200, and if there is a sign of failure, where and what type of failure sign is occurring.

Definitions of failure modes in Example 1 are shown below.
- Failure mode value '0': There is no failure sign. - Failure mode value '1': There is a failure sign in the control/transmission device of the management unit 220. - Failure mode value '2': Opening/closing of a certain door 210. There is a sign of failure in the drive device of the device 211 due to deterioration over time - Failure mode value '3': There is a sign of horizontal distortion of the door or the rail supporting the door in the drive device of the opening/closing device 211 of a certain door 210. Yes/Failure mode value '4': There is a sign of vertical distortion of the door or the rail supporting the door in the drive device of the opening/closing device 211 of a certain door 210.

FIG. 4 is a diagram illustrating an example of a processing flow of a failure mode determination process (step S1107 shown in FIG. 3) for determining each failure mode. The main body that executes each processing step described below is the failure sign diagnosis unit 130, but the description of that main body will be omitted below.

Step S1201 determines whether the absolute value of the difference between the opening time and the reference opening time and the absolute value of the difference between the closing time and the reference closing time are larger than a threshold value _d1 for all doors 210. If Yes, the process advances to step S1202; if No, the process advances to step S1206.

In step S1202, the value of the failure sign counter of the management unit 220 is incremented by 1.
In step S1203, it is determined whether the value of the failure sign counter of the management unit is larger than the threshold value _d2 . If Yes, the process advances to step S1204; if No, the process advances to step S1205. Details of the threshold value _d2 will be described later.

In step S1204, the failure mode value is set to 1, and the process ends.
In step S1205, the failure mode value is set to 0, and the process ends.
In step S1206, failure mode determination processing for each door 210 is performed, and the processing ends. Details of the failure mode determination process for each door 210 will be described later.

(Threshold value d ₂ )
Here, details of the threshold value _d2 will be explained.
The threshold value _d2 is a parameter that indicates how many consecutive times the opening/closing time obtained from the management unit 220 shows a value different from the reference opening/closing time to determine that a failure sign has occurred. .
In the door system 200 such as a platform door, a phenomenon occurs in which the opening/closing time is suddenly different from the standard opening/closing time, although it is not a sign of failure, such as a longer closing time due to a foreign object getting caught during the opening/closing operation. There are cases where Therefore, unlike the above-mentioned phenomenon, the method for calculating the threshold value _d2 is to use a value that can be determined to be a time that is definitely different from the standard opening/closing time each time (for example, a number of times such as 5 times or 10 times). ).

(Failure mode determination process for door 210)
FIG. 5 is a diagram illustrating an example of a processing flow of failure mode determination processing for each door 210 (step S1206 shown in FIG. 4) by the failure sign diagnosis unit 130 in the first embodiment. The main body that executes each processing step described below is the failure sign diagnosis unit 130, but the description of that main body will be omitted below.

In step S1301, doors 210 to 1 are determined in step S1201 of the failure mode determination process that either the difference between the opening time and the reference opening time or the difference between the closing time and the reference closing time is larger than the threshold value _d1 . Choose one.
In step S1302, the value of the failure sign counter for the selected door 210 is incremented by 1.

In step S1303, it is determined whether the value of the failure sign counter of the selected door 210 is larger than the threshold value _d2 . If Yes, the process advances to step S1304; if No, the process advances to step S1307.

In step S1304, it is determined whether the total number of openings or total number of closings of the selected door 210 is greater than a threshold value _d3 . If Yes, the process advances to step S1305; if No, the process advances to step S1309. Details of the threshold value _d3 will be described later.

In step S1305, the failure mode value of the selected door 210 is set to 2.
In step S1306, it is determined whether there are any remaining doors 210 that were not selected in step S1301. If Yes, the process ends; if No, the process returns to step S1301.
In step S1307, the failure mode value of the selected door 210 is set to 0.

In step S1308, it is determined whether the difference between the opening time of the selected door 210 and the reference opening time and the difference between the closing time and the reference closing time are both greater than a threshold value _d1 . If Yes, the process advances to step S1309; if No, the process advances to step S1310.

In step S1309, the failure mode value of the selected door 210 is set to 3. In other words, if it is determined that both the difference regarding the opening time and the difference regarding the closing time described above are larger than the threshold value _d1 , distortion or the like may occur in the horizontal direction of the door or the rail supporting the door, which is the part directly involved in the opening/closing operation. It is determined that there are signs of failure.
In step S1310, the failure mode value of the selected door 210 is set to 4. That is, if it is determined that either the difference regarding the opening time or the difference regarding the closing time described above is larger than the threshold value _d1 , in the vertical direction of the door or the rail supporting the door, which is a part that is not directly involved in the opening/closing operation, It is determined that there are signs of failure such as distortion.

(Threshold value _d3 )
Here, details of the threshold value _d3 will be explained.
The threshold value _d3 is a parameter for determining that the cause is deterioration of the equipment or parts that constitute the driving device of the opening/closing device 211, and is determined based on the total number of opening/closing times. For example, it targets the deterioration of equipment or parts that require periodic replacement, such as timing belts and motor brushes.
The threshold value _d3 can be calculated, for example, by multiplying the service life of equipment or parts that require replacement by the number of openings or closings per year calculated from train operation. In addition, if there are multiple devices or parts that need to be replaced, multiply the service life of the device or part with the shortest service life by the number of openings or closings per year listed above. It may be calculated. Furthermore, if there are devices or parts that have been replaced in the past at the time the predictive failure diagnosis system 100 is introduced, the calculation is performed by selecting the one with the shortest remaining service life at the time of the installation of the predictive failure diagnosis system 100. You may.

(Notification of failure sign alert)
Next, a method of notifying a failure sign alert will be explained.
The failure sign alert notifies the driver, driving command center (driving command center), inspection and repair area (vehicle depot), etc. that a failure sign of the door system 200 has been detected, at least through a screen display or an audio sound. It is a function.

When the failure sign diagnosis system 100 is installed on a train, the failure sign diagnosis system 100 outputs a failure sign alert to a vehicle information control device (not shown), and displays the driver's cab etc. from the vehicle information control device (not shown). Displays on the screen that a sign of failure has been detected in the device. Alternatively, the failure sign diagnosis system 100 may directly display on a display on a driver's cab or the like that a failure sign has been detected.

Further, the failure sign diagnosis system 100 transmits vehicle data aggregated by a vehicle information control device (not shown) to a driving command center (driving command center), an inspection and repair area (vehicle depot), etc. using a public wireless communication network, etc. If it has a function to send to the ground system, it includes the failure sign alert in the vehicle data and sends it to the ground system. Thereby, a failure sign alert may be notified via the ground system from a screen or the like provided in the ground system.

Furthermore, when a ground system in a driving command center (driving command center) or an inspection/maintenance area (vehicle depot) implements the predictive failure diagnosis system 100, the predictive failure diagnosis system 100 sends predictive failure alerts to the ground system. It may be displayed on a screen provided.
(effect)
As described above, the failure sign diagnosis system according to the first embodiment is capable of controlling not only the driving device of each door opening/closing device but also the control device for a door system consisting of a management unit and an opening/closing device that controls the opening/closing of a plurality of door devices. This makes it possible to detect signs of failure of the entire door system, including the parts.

In addition, the failure sign diagnosis system according to the first embodiment uses a function to calculate standard opening/closing times when equipment is normal from past opening/closing time information, and compares past opening/closing times with current opening/closing times. If the opening/closing time of a specific door differs from the past opening/closing time, it is determined that there is a sign of failure in the door system management section, and if the opening/closing time of a specific door differs from the past opening/closing time, , it has a function that determines that there is a sign of failure in that particular door.

Further, the failure sign diagnosis system 100 according to the first embodiment takes into account the number of times the door has been opened and closed, and the difference between the opening and closing times in the past with respect to the failure sign of the door. It has a function to determine the cause of failure in the drive device of the door opening/closing device.

A second embodiment of the present invention will be described with reference to FIGS. 6 to 9.
(Block configuration)
FIG. 6 is a diagram showing a block configuration of a failure sign diagnosis system 100, a door system 200 to be diagnosed, and an intervening vehicle 300 according to a second embodiment of the present invention.

In the second embodiment, the components of the failure sign diagnosis system 100 and the components of the door system 200 are the same as those in the first embodiment, except that the opening/closing operation commands for the door system 200 are transmitted from the vehicle 300. This is different from Example 1.

In the following, regarding Example 2, a plurality of door systems 200 and vehicles 300 each exist, such as a platform door installed at each station in a railway line section and a group of trains running on that line section, and An example will be described in which a specific vehicle 300 stops with respect to the door system 200.

Note that the description of each component of the failure sign diagnosis system 100 and the door system 200 is omitted because it is the same as in the first embodiment. Furthermore, regarding the input/output of each part, the explanation will be limited to the points that are different from the first embodiment.

Vehicle 300 includes a vehicle information control section 310, a first transmission section 320, and a second transmission section 330. In addition, the vehicle 300 is originally equipped with functions and equipment for driving such as wheels, a driver for controlling driving, or functions and equipment for automatic driving control that replaces the driver, etc. Since they do not directly affect the operation mode of Example 2, their explanation will be omitted.

The data input unit 110 receives vehicle identification information (for example, information about which vehicle 300 the information was acquired from) and door system identification information (information about which door system 200 the information was acquired from) from the first transmission unit 320 of the vehicle 300. ) is input, and is output to the storage unit 120 and the failure sign diagnosis unit 130.

Here, the opening/closing time information can be inputted in the data input unit 110 by directly inputting it from the first transmission unit 320 of the vehicle 300 to the failure sign diagnosis system 100 via public wireless communication or the like; If the vehicle has a function that allows transmission to a storage area built on a server installed in a server or a cloud environment, the predictive failure diagnosis system 100 should be implemented in an environment where it can be connected to this storage area. , etc. are assumed when inputting from this storage area.

The storage unit 120 acquires reference opening/closing time information of each door 210 of the door system 200 that matches the door system identification information from the storage area, and outputs it to the failure sign diagnosis unit 130. Further, the opening/closing time information of each door 210 is inputted from the data input section, and the reference opening/closing time information of each door 210 of the door system 200 that matches the door system identification information is updated and stored in the storage area. Details of the operation of the storage unit 120 will be described later.

The predictive failure diagnosis unit 130 inputs the opening/closing time information of each door 210 from the data input unit 110 and the standard opening/closing time information of each door 210 of the door system 200 that matches the door system identification information from the storage unit 120, It diagnoses signs of failure based on each input information, and outputs the diagnosis results to the driver, driving command center (driving command center), inspection and repair area (vehicle depot), etc. The method of outputting to the driver, driving command center (driving command center), inspection and repair area (vehicle depot), etc. is the same as in the first embodiment, so the explanation will be omitted. Further, the operation mode (processing flow) of the failure sign diagnosis section 130 will be described later.

The management unit 220 of the door system 200 receives an opening/closing command from the second transmission unit 330 of the vehicle 300 and outputs the opening/closing command to the opening/closing device 211 of each door 210. Further, the opening/closing state of each door (open or closed) is input from the opening/closing device 211 and output to the second transmission unit 330 of the vehicle 300 .

Vehicle information control section 310 of vehicle 300 communicates with data input section 110 of failure sign diagnosis system 100 via first transmission section 320 . Further, the vehicle information control unit 310 communicates with the management unit 220 of the door system 200 via the second transmission unit 330, outputs an opening/closing command to the management unit 220, and sends the management unit 220 to the opening/closing state of each door 210. Enter.

Furthermore, the vehicle information control unit 310 calculates the opening/closing time information of each door 210 from the input closed/closed state of each door 210, adds vehicle identification information and door system identification information to this opening/closing time information, and inputs the data. 110.
Here, a method for calculating the opening/closing time information will be described below.
- Opening time: time from when the vehicle information control unit 310 transmits a door open signal until receiving from the management unit 220 that the open/close state information of each door 210 has changed to the open state -Closing time: vehicle information control The time from when the unit 310 transmits the door close signal until receiving from the management unit 220 that the open/close state information of each door 210 has changed to the closed state.

(Operation of storage unit 120)
FIG. 7 is a diagram illustrating an example of a processing flow of the storage unit 120 in the second embodiment. Note that, in the following, only the differences from the first embodiment will be explained, and although the main body that executes each processing step is the processing unit included in the storage unit 120, the description of the main body will be omitted.

In step S1401, door system identification information included in the opening/closing time information is acquired from the data input unit 110.
In step S1402, the door system 200 that matches the door system identification information is selected.
In step S1403, the reference time information of each door 210 of the door system 200 is acquired from the storage area and output to the failure sign diagnosis unit 130.

The contents of the subsequent steps S1002 and S1003 are the same as those in the first embodiment, and therefore the description thereof will be omitted.
The subsequent processes from step S1404 to step S1008 are looped by the number of doors 210 (=opening/closing devices 211) of the door system 200, and are performed for each opening/closing time information of each door 210.

In step S1404, reference time information, total opening/closing time information (total opening time and total closing time), and total opening/closing frequency information (total opening frequency and total closing frequency) of each door 210 of the door system 200 are acquired from the storage area. .
The contents of each process from step S1005 to step S1008 are the same as in the first embodiment, and therefore the description thereof will be omitted.

(Operation of predictive failure diagnosis unit 130)
FIG. 8 is a diagram illustrating an example of a processing flow of the failure sign diagnosis unit 130 in the second embodiment. In the following, only the differences from the first embodiment will be explained, and although the main body that executes each processing step is the failure sign diagnosis section 130, the description of that main body will be omitted below.

The contents of each process from step S1101 to step S1103, step S1105, step S1106, and step S1109 are the same as those in the first embodiment, and therefore the description thereof will be omitted.
However, since the failure mode determination process in step S1107 is different from the first embodiment, it will be described later.

In step S1501, the value of the failure sign counter of the management unit 220 in the door system 200 that matches the door system identification information and the value of the failure sign counter of all the doors 210 are initialized to 0, respectively.
In step S1502, the value of the failure sign counter of the vehicle 300 that matches the vehicle identification information is initialized to zero.

In step S1503, it is determined whether there is a device whose failure mode value is other than 0 in the vehicle 300 that matches the vehicle identification information, the management unit 220 in the door system 200 that matches the door system identification information, and each door 210. If there is (Yes), the process advances to step S1109; if there is no (No), the process advances to step S1105.

(Failure mode and failure mode determination processing)
Next, regarding the failure mode and failure mode determination processing, only the differences from the first embodiment will be explained.
For the failure mode in the second embodiment, in addition to the failure mode values 0 to 4 in the first embodiment, the following failure mode values are defined.Failure mode value '5': Second transmission of a certain specific vehicle 300 There are signs of failure in section 330.

FIG. 9 is a diagram showing an example of the processing flow of the failure mode determination process (step S1107 shown in FIG. 8) for determining each failure mode. In the following, only the differences from the first embodiment will be explained, and although the main body that executes each processing step is the failure sign diagnosis section 130, the description of that main body will be omitted below.

In step S1201, the same process as in the first embodiment is performed, and if YES, the process advances to step S1601; if NO, the process advances to step S1206.

In step S1601, the value of the failure sign counter of the management unit 220 of the door system 200 that matches the door system identification information is incremented by 1.
In step S1602, the value of the failure sign counter of the vehicle 300 that matches the vehicle identification information is incremented by 1.

In step S1203, the same process as in the first embodiment is performed, and if Yes, the process advances to step S1204, and if No, the process advances to step S1603.

In step S1603, it is determined whether the value of the failure sign counter of vehicle 300 is greater than threshold value _d2 . If Yes, the process advances to step S1604; if No, the process advances to step S1205.
In step S1604, the failure mode value is set to 5, and the process ends. That is, it is determined that there is a sign of a failure in the second transmission section 330 that communicates with the management section 220 of the corresponding door system 200 in the corresponding vehicle 300.

The contents of each process in step S1205 and step S1206 are the same as in the first embodiment, so the description thereof will be omitted.

(effect)
As described above, the predictive failure diagnosis system according to the second embodiment performs predictive failure diagnosis of the door system that controls the operation of the opening/closing device by receiving opening/closing commands from the vehicle. It is also possible to detect signs of failure.

In addition, the failure sign diagnosis system has a function that can determine whether a failure sign is occurring in the communication device on the vehicle side or the door system side, and when there are multiple vehicles and door systems, which vehicle or door system side It has a function that identifies which door system is experiencing signs of failure.

That is, the failure sign diagnosis system according to the second embodiment detects failure signs of the entire door system including the communication device with the vehicle in a door system that controls the operation of the opening/closing device by receiving opening/closing commands from the vehicle. make it possible.

Although the first and second embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments 1 and 2, and various changes can be made without departing from the gist of the present invention. It is. For example, the first and second embodiments described above are described in detail to explain the present invention in an easy-to-understand manner, but the present invention is not necessarily limited to having all the configurations described. Other embodiments that are considered within the technical spirit of the present invention are also included within the scope of the present invention.

Moreover, a part or all of the above-described configurations, functions, processing units, etc. may be realized in hardware by designing, for example, an integrated circuit. Further, each of the configurations, functions, etc. described above may be realized by software by a processor interpreting and executing a program for realizing each function. Information such as programs, tables, and files that implement each function can be stored in a storage device such as a memory, a hard disk, or an SSD (Solid State Drive), or a storage medium such as an IC card, an SD card, or a DVD.

100...Failure sign diagnosis system, 110...Data input unit, 120...Storage unit,
130...Failure sign diagnosis unit, 200...Door system, 210...Door, 211...Opening/closing device,
220...Management unit, 300...Vehicle, 310...Vehicle information control unit,
320...first transmission section, 330...second transmission section

Claims (14)

Diagnosing failure signs of a door system that includes a plurality of doors, a plurality of opening/closing devices that control the opening and closing of each of the plurality of doors, and a management unit that instructs the plurality of opening/closing devices to open and close timing of each of the plurality of doors. A predictive failure diagnosis system,
a data input unit that inputs information regarding opening and closing times of each of the plurality of doors from the door system;
a storage unit that stores information regarding the opening and closing times of each of the plurality of doors, including past times, acquired from the data input unit;
A predictive failure diagnosis for diagnosing a predictive failure of the door system by comparing information regarding the opening/closing time obtained from the data input unit and information including the past information regarding the opening/closing time acquired from the storage unit. Equipped with a
If the opening/closing time of some of the plurality of doors is different from the past opening/closing time of the door, the failure sign diagnosis unit determines that there is a failure sign in the opening/closing device of some of the doors. A failure sign diagnosis system characterized by diagnosing and diagnosing that there is a failure sign in the management section if the opening/closing times of all the plurality of doors are different from the past opening/closing times of all the doors. The failure sign diagnosis system according to claim 1,
The past information regarding the opening/closing time of each of the plurality of doors is updated from the information regarding the opening/closing time of each of the plurality of doors and the information regarding the past total opening/closing time and total number of openings/closing of each of the plurality of doors, and the past information regarding the opening/closing time of each of the plurality of doors is updated. The failure sign diagnosis system is characterized in that the opening/closing time is stored as a reference for diagnosing the failure sign for each of the plurality of doors. The failure sign diagnosis system according to claim 1,
The failure sign diagnosis system is characterized in that, when the failure sign diagnosis unit diagnoses that the failure sign exists, it notifies the failure sign by at least one of a screen display and an audio sound. The failure sign diagnosis system according to any one of claims 1 to 3,
When the failure predictive diagnosis unit diagnoses that there is a failure sign in the opening/closing device of some of the doors, the failure predictive diagnosis unit further determines that the number of openings and closings by the opening/closing device up to the diagnosis is of the equipment or parts constituting the opening/closing device. A predictive failure diagnosis system that determines that there is a sign of failure in the device or part when the number of openings and closings is greater than the expected number of times based on the service life. The failure sign diagnosis system according to any one of claims 1 to 3,
When the failure predictive diagnosis unit diagnoses that there is a failure sign in the opening/closing device of some of the doors, the failure predictive diagnosis unit further determines that the number of openings and closings by the opening/closing device up to the diagnosis is of the equipment or parts constituting the opening/closing device. When the number of openings and closings is less than the number of openings and closings expected from the service life, if the opening time and closing time of the said partial door are different from the past opening time and closing time of the door, the opening time of the partial door or the door concerned is If it is determined that there is a sign of failure in the horizontal direction in the supporting rail portion, and either the opening time or closing time of the part of the door is different from the past opening time or closing time of the door, the part of the door or A failure sign diagnosis system characterized by determining that there is a failure sign in the vertical direction in a rail portion that supports the door. The failure sign diagnosis system according to any one of claims 1 to 3,
When the management unit of the door system and the data input unit of the failure sign diagnosis system communicate via a plurality of external devices,
When the failure sign diagnosis unit diagnoses the failure sign with respect to the information regarding the opening/closing time acquired through some external devices among the plurality of external devices, the failure sign diagnosis unit detects a failure sign in some of the external devices. When determining that there is a failure sign and diagnosing the failure sign based on information regarding the opening/closing time obtained through all of the plurality of external devices, it is determined that the door system has a failure sign as described in claim 1. A failure sign diagnosis system characterized by: The failure sign diagnosis system according to claim 6,
If there are a plurality of door systems, assigning identification information to each of the plurality of external devices and the plurality of door systems,
The failure sign diagnosis system is characterized in that the failure sign diagnosis unit uses the identification information to identify a door system and an external device in which the failure sign has been diagnosed. A failure for diagnosing failure signs of a door system having a plurality of doors, a plurality of opening/closing devices that control the opening/closing of the plurality of doors, and a management section that instructs the plurality of opening/closing devices to open/close timing of each of the plurality of doors. A predictive diagnostic method,
inputting information regarding the opening/closing time of each of the plurality of doors from the management unit;
storing information regarding the opening and closing times of each of the plurality of doors, including past times;
Compare the information regarding the opening/closing time with the information including the past opening/closing time, and if the opening/closing time of some doors among the plurality of doors differs from the past opening/closing time of the door. diagnoses that there is a failure sign in the opening/closing device of some of the doors, and if the opening/closing time of all of the plurality of doors is different from the past opening/closing time of all the doors, the management unit is informed of the failure sign. A failure sign diagnosis method characterized by diagnosing that there is a problem. The failure sign diagnosis method according to claim 8,
The past information regarding the opening/closing time of each of the plurality of doors is updated from the information regarding the opening/closing time of each of the plurality of doors, and the information regarding the past total opening/closing time and the total number of times of opening/closing of each of the plurality of doors, and the past information regarding the opening/closing time of each of the plurality of doors is updated. A method for diagnosing failure signs, characterized in that opening/closing times are stored as a reference for diagnosing the failure signs for each individual. The failure sign diagnosis method according to claim 8,
A failure sign diagnosing method characterized in that, when it is diagnosed that the failure sign exists, the failure sign is notified by at least one of a screen display and an audio sound. The failure sign diagnosis method according to any one of claims 8 to 10,
Diagnose that the opening/closing device of some of the doors has signs of failure, and further, the number of openings/closings by the opening/closing device until the diagnosis is greater than the number of openings/closings expected from the service life of the equipment or parts constituting the opening/closing device. If there are many failure signs, it is determined that there is a failure sign in the device or the part. The failure sign diagnosis method according to any one of claims 8 to 10,
Diagnose that the opening/closing device of some of the doors has signs of failure, and furthermore, the number of openings and closings by the opening/closing device until the diagnosis is less than or equal to the expected number of openings/closings based on the service life of the equipment or parts that make up the opening/closing device. In this case, if the opening time and closing time of the part of the door are different from the past opening time and closing time of the door, there is a horizontal failure in the part of the door or the rail that supports the door. If it is determined that there is a sign, and either the opening time or closing time of the part of the door is different from the past opening time or closing time of the door, the part of the door that supports the door or the rail part that supports the door is A failure sign diagnosis method characterized by determining that there is a failure sign in the vertical direction. The failure sign diagnosis method according to any one of claims 8 to 10,
When the management unit of the door system communicates via a plurality of external devices,
When the failure sign is diagnosed with respect to the information regarding the opening/closing time obtained through some of the external devices among the plurality of external devices, it is determined that some of the external devices have the failure sign; When the failure sign is diagnosed with respect to the information regarding the opening/closing time obtained through all of the plurality of external devices, it is determined that the door system has the failure sign according to claim 8. Diagnostic method. The failure sign diagnosis method according to claim 13,
If there are a plurality of door systems, each of the plurality of external devices and the plurality of door systems is provided with identification information, and the identification information is used to identify the door system and external device in which the failure sign has been diagnosed. A failure sign diagnosis method characterized by the following.

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