JP2012127109A - Remote maintenance determination device and remote maintenance determination method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote maintenance determination system which reduces load on a service engineer and prevents failure of machinery from occurring.SOLUTION: A remote maintenance determination system 10 transmits operating conditions of a machine part 14 installed on a multistory parking device 12, so that the multistory parking device 12 is remotely monitored to determine necessity of maintenance. The remote maintenance determination system 10 forecasts operating conditions of the machine part 14 for a period from the present time to the next inspection day based on the transition of the operating conditions of the machine part 14 up to the present time, compares the forecasted results of the operating conditions and threshold values A and B indicating necessity of maintenance of the machine part 14 to determine maintenance execution time of the machine part 14, and allows an information display device 52 to notify the determined maintenance execution time.

Description

  The present invention relates to a remote maintenance determination device and a remote maintenance determination method.

Conventionally, for example, the operating status of machine parts installed in mechanical devices such as multi-story parking devices has been monitored to detect signs of malfunctions in machine parts, and the need for maintenance (necessity of emergency dispatch to the site) Remote maintenance judgment devices that judge (diagnosis) are being developed.
In Patent Literature 1, the parking device is remotely monitored at the management center, and the parking device remote maintenance system that determines the necessity of maintenance of each part of the parking device monitors the operating state of the machine of the parking device. Outputs information that monitors the operating state of the machine to the management center, determines whether maintenance is required at the management center based on the information output to the management center, and operates the machine based on the determination that is required for maintenance. A remote maintenance system for a parking apparatus is described which includes a stage for instructing the contents of maintenance to a service engineer (maintenance staff) along with the state.

  Here, the detection of a failure sign of a machine part is performed by, for example, determining whether the operation state of the machine part is within a predetermined setting range, comparing the current operation state with a past operation state, This is determined by whether or not information is received from a sensor that detects the operating state. For example, the operating status of machine parts (for example, the operating time and moving distance of machine parts) is constantly monitored, and when the operating status is out of a predetermined setting range, the remote maintenance determination device performs maintenance of the machine equipment. Inform the service engineer that the emergency dispatch to the site is necessary.

JP 2004-157828 A

  However, even if a service engineer is dispatched to the site, there are cases where maintenance of machine parts is not urgent or adjustment or inspection may be performed at the next periodic inspection. For this reason, whenever a service engineer dispatches to a mechanical facility to be maintained every time a sign of a malfunction of a machine part is detected, the burden on the service engineer is large.

  The present invention has been made in view of such circumstances, and provides a remote maintenance determination device and a remote maintenance determination method capable of reducing the burden on a service engineer and preventing a failure of a mechanical device in advance. For the purpose.

  In order to solve the above problems, the remote maintenance determination apparatus and the remote maintenance determination method of the present invention employ the following means.

  That is, the remote maintenance determination device according to the present invention remotely monitors the mechanical device and determines the necessity of maintenance by transmitting the operating state of the machine component provided in the mechanical device. A prediction means for predicting an operation state of the machine part from a current time to a predetermined time based on a change in an operation state of the machine part up to a current time, and a prediction result of the operation state predicted by the prediction means Are compared with a threshold value indicating the necessity of maintenance for the machine part, thereby determining means for determining the maintenance execution time of the machine part, and notification means for informing the maintenance execution time determined by the determination means .

According to the present invention, the remote maintenance determination device transmits the operating state of the machine component provided in the machine device, thereby remotely monitoring the machine device to determine the necessity of maintenance.
Based on the change in the operating state of the machine part up to the current time, the operating state of the machine part from the current time to a predetermined time is predicted by the prediction means provided in the remote maintenance determination device.
The predetermined time is, for example, one week later, the next inspection date, the next inspection date, the annual inspection date from the present time, or one year from the current time.
Then, the judgment result of the operation state predicted by the prediction means is compared with a threshold value indicating the necessity of maintenance for the machine part, thereby determining the maintenance execution time of the machine part. The determined maintenance execution time is notified.
The maintenance execution time is, for example, an emergency dispatch for immediate maintenance, a temporary inspection performed without waiting for the next inspection date, a next inspection date, or the like.

  Accordingly, the present invention predicts the operating state of the machine part from the present time to a predetermined time and determines the maintenance time from the operating state, thereby reducing the burden on the service engineer and preventing the machine part from being damaged beforehand. Can do.

In the remote maintenance determination device of the present invention, the mechanical device may be a multi-story parking device, and the operating state of the mechanical parts may be an operating state when the multi-story parking device is transporting a vehicle.
According to the present invention, since the mechanical device is a multi-story parking device, and the operation state of the machine part is the operation state when the multi-story parking device is transporting a vehicle, the operation of the machine component when a load is applied For example, since the operation state from the state to the next inspection date is predicted, the necessity for maintenance of the machine parts can be determined more accurately.

In the remote maintenance determination device of the present invention, a plurality of the threshold values may be set according to the maintenance content.
According to the present invention, since more threshold values are provided, the service engineer can perform more accurate maintenance on the mechanical device.

In the remote maintenance determination device of the present invention, the threshold value may be correctable.
According to the present invention, the threshold value can be corrected according to the operating state or the like of each mechanical device, so that the service engineer can perform more accurate maintenance on the mechanical device.

The remote maintenance determination apparatus of the present invention further includes an input unit that receives an input as to whether or not the maintenance execution time determined by the determination unit is appropriate, and the threshold value depends on a result input by the input unit. May be amendable.
According to the present invention, since the threshold value can be corrected according to the determined maintenance execution time, the service engineer can perform more accurate maintenance on the mechanical device.

In the remote maintenance determination device of the present invention, the notification unit may be a display unit that displays a maintenance execution time determined by the determination unit and a maintenance content corresponding to the machine part requiring maintenance.
According to the present invention, since the maintenance execution timing and the maintenance content for the machine part are displayed on the display means, the service engineer can perform more accurate maintenance on the machine device.

Further, the remote maintenance determination device of the present invention requires the notification unit to perform the maintenance execution time determined by the determination unit, the predicted result of the operation state of the machine part predicted by the prediction unit, and maintenance. The display unit may display a plurality of maintenance contents corresponding to the machine part, and the maintenance content selected via the input unit among the plurality of maintenance contents displayed on the display unit may be stored.
According to the present invention, since a plurality of maintenance contents are displayed on the display means, the service engineer can determine the maintenance contents according to the maintenance execution timing and the operation state prediction result, and the maintenance contents selected via the input means Is stored, so that the selected maintenance content can be easily confirmed at a later date.

That is, a remote maintenance determination method according to the present invention is a remote maintenance determination method for determining remote maintenance of a machine device by transmitting an operating state of the machine component provided in the machine device, wherein the machine component A first step of predicting an operating state of the mechanical part from a current point of time to a predetermined time on the basis of a change in the operating state up to the present time, and a prediction result of the operating state predicted by the first step. A second process stage for determining the maintenance execution time of the machine component by comparing with a threshold value indicating the necessity of maintenance for the third, and a third process for informing the maintenance execution time determined by the second process, including.
According to the present invention, the operation state of the machine part from the present time to a predetermined time is predicted, and the maintenance time is determined from the operation state, so that the burden on the service engineer is reduced and the failure of the machine part is prevented in advance. Can do.

  According to the present invention, it is possible to reduce the burden on a service engineer and to prevent a mechanical component from being broken.

It is a block diagram which shows the structure of the remote maintenance judgment system which concerns on 1st Embodiment of this invention. It is a flowchart which shows the content of the process of the maintenance judgment program which concerns on 1st Embodiment of this invention. It is a graph which shows the prediction result of the maintenance judgment processing concerning a 1st embodiment of the present invention. It is a flowchart which shows the content of the process of the maintenance judgment program which concerns on 2nd Embodiment of this invention. It is a graph which shows the prediction result of the maintenance judgment processing concerning a 2nd embodiment of the present invention. It is a flowchart which shows the content of the process of the maintenance judgment program which concerns on 3rd Embodiment of this invention. It is a graph which shows the prediction result of the maintenance judgment processing concerning a 3rd embodiment of the present invention. It is a block diagram which shows the structure of the remote maintenance judgment system which concerns on 4th Embodiment of this invention. It is a block diagram which shows the structure of the remote maintenance judgment system which concerns on 5th Embodiment of this invention.

  Hereinafter, an embodiment of a remote maintenance determination device and a remote maintenance determination method according to the present invention will be described with reference to the drawings.

[First Embodiment]
The first embodiment of the present invention will be described below.
FIG. 1 is a block diagram showing a configuration of a remote maintenance determination system 10 as a remote maintenance determination device according to the first embodiment.
The remote maintenance determination system 10 according to the first embodiment remotely monitors the multi-story parking device 12 by transmitting the operating state of the machine part 14 provided in the multi-story parking device 12, and confirms the necessity for maintenance. It is to be determined, and includes a failure sign reporting device 16 and a plurality of maintenance centers 18.

As an example, the maintenance center 18 is provided for each multi-story parking device 12 and is installed in the vicinity of the corresponding multi-story parking device 12, and a service engineer (maintenance staff) who performs maintenance of the multi-story parking device 12 is stationed. ing. The maintenance center 18 may be provided for each of the plurality of three-dimensional parking apparatuses 12.
The multi-story parking device 12, the failure sign reporting device 16, and the maintenance center 18 can transmit and receive data via a communication line 20 (for example, an Internet line and a telephone line).

  The mechanical part 14 provided in the multi-story parking device 12 is, for example, a limit switch 22 (a limit switch that is provided at a position where the door is opened and detects an open state of the door, and a pair that detects opening and closing of the door). The door is provided in a closed position and is paired with a limit switch that detects the closed state of the door.), A wire rope and sheave (pulley) for hanging the carrier 24 that transports the vehicle in the vertical direction, and the carrier 24 are fixed. Machine parts 26 that operate in a certain period of time, such as a lock device and a pallet lift device, and other limit switches, photoelectric sensors, motors, inverters, relays, control devices, etc. is there.

The multi-story parking apparatus 12 includes a sequencer 28 and a communication unit 30.
The sequencer 28 receives a predetermined signal of each mechanical component 14 from each mechanical component 14 and performs a process for using the data based on the predetermined signal as operating state data.

  A specific example of the operating state will be described below together with the operation of the sequencer 28.

  The sequencer 28 calculates the difference in the number of operations of the pair of limit switches 22 from the number of times the limit switch 22 is turned on or off in a predetermined period, and the communication unit 30 can transmit the calculation result via the communication line 20. Digital data is used. If the paired limit switch 22 is normal, there is no difference in the number of operations, and if a problem has occurred, the number of operations in the paired limit switch 22 will be different and will increase with time. .

  In addition, the sequencer 28 recognizes the angle output from the tilt sensor 32 as the tilt of the portable device 24, and uses the angle as digital data so that the communication unit 30 can transmit via the communication line 20. In addition, if the wire rope, sheave, and the carrying device 24 itself that suspends the carrying device 24 are normal, the carrying device 24 does not tilt. However, if the wire rope is stretched, the sheave is worn, or the carrying device 24 has a defect, the carrying device 24. It is considered that a slope is generated and increases with time.

  Further, the sequencer 28 determines the difference between the operation time and the average value of the operation time of the machine parts 26 that perform a fixed operation such as a lock device for fixing the transporter 24, a pallet lift device, an entrance door, and a pallet lateral feed device. And the calculation result is converted into digital data so that the communication unit 30 can transmit it via the communication line 20. If the machine parts 26 that perform these constant operations are normal, the difference from the average value does not occur or is very small. However, the machine parts 26 that perform these constant operations have malfunctions (insufficient lubricating oil, wear, rust, It is considered that a difference from the average value occurs when a foreign object biting occurs, and becomes larger with the passage of time.

  Of the mechanical parts 14, the mechanical part 14 involved in the transportation of the vehicle uses the operating state when the vehicle is transported as the operating state. For example, although the transporter 24 is also a mechanical part 14 related to the transportation of the vehicle, the inclination when moving up and down without mounting the vehicle is not used as the operating state, and when moving up and down with the vehicle mounted Is used as the operating state.

  In the following description, digital data indicating the operation state of each mechanical component 14 output from the sequencer 28 is collectively referred to as operation state data. Further, the value indicated by the operating state data according to the first embodiment is an absolute value.

  When the operation state data is input from the sequencer 28, the communication unit 30 transmits the operation state data to the failure sign reporting device 16 via the communication line 20.

The failure sign reporting device 16 includes a communication unit 40, a data management unit 42, a maintenance determination unit 44, and a transmission data creation unit 46.
The communication unit 40 receives the operation state data transmitted from the multi-story parking device 12 and outputs the received operation state data to the data management unit 42.

  The data management unit 42 includes a storage device 48 composed of a magnetic storage device or a semiconductor storage device. The date and time when the communication unit 40 receives the operation state data and the operation state data are associated with each other to operate the storage device 48. Store in the state storage area.

Based on the change in the operation state of the machine component 14 stored in the operation state storage area of the storage device 48 up to the current time, the maintenance determination unit 44 determines the predetermined time (for example, for the multi-story parking device 12) from the current time of the machine component 14. The operation state up to the next inspection date) is predicted, and the operation state prediction result is compared with a threshold value indicating the need for maintenance of the machine component 14, so that the maintenance execution time of the machine component 14 (hereinafter referred to as “maintenance execution time”). ”) (Hereinafter referred to as“ maintenance determination processing ”).
Note that the threshold corresponding to the mechanical component 14 is stored in the threshold storage area of the storage device 48. The threshold value may be shared by the multilevel parking apparatus 12 or may be different for each multilevel parking apparatus 12.

  The transmission data creation unit 46 performs the maintenance execution time determined by the maintenance determination unit 44, the predicted result of the operating state of the machine component 14, and the maintenance content (exchange, inspection, adjustment, etc.) according to the machine component 14 requiring maintenance. ) And the like are generated as transmission data for transmission to the maintenance center 18 and output to the data management unit 42.

When the transmission data is input, the data management unit 42 stores the input transmission data in the transmission data storage area of the storage device 48 and then outputs it to the communication unit 40.
When the transmission data is input, the communication unit 40 transmits the input transmission data to the maintenance center 18.

The maintenance center 18 includes a communication unit 50 and an information display device 52.
When receiving the transmission data, the communication unit 50 outputs the received transmission data to the information display device 52.
The information display device 52 has a graph display function and a maintenance content display function. Based on the input transmission data, the maintenance execution time for the machine part 14, the predicted result of the operation state of the machine part 14, and the machine part The maintenance content for 14 is displayed on the screen to notify the maintenance execution time and the like. As the information display device 52, a display device, a portable terminal device, a printing device, a facsimile device or the like provided in a personal computer or the like is used.
The maintenance center 18 includes not only the office where the service engineer is stationed, but also the service engineer who travels by car or the like with a portable terminal or PC having a communication function.

  Next, the operation of the failure sign reporting device 16 according to the first embodiment will be described.

FIG. 2 is a flowchart showing the flow of the maintenance determination program executed by the maintenance determination unit 44 when the failure sign reporting device 16 performs the maintenance determination process. The maintenance determination program is stored in the maintenance determination unit 44. Pre-stored in a predetermined area of the means.
Note that the maintenance judgment program starts its operation and starts executing the failure sign reporting device 16, stops the operation of the failure sign reporting device 16, and stops its execution.

First, in step 100, it is determined whether or not the operating state indicated by the operating state data of the mechanical component 14 received by the communication unit 40 exceeds the threshold value A. If the determination is affirmative, the process proceeds to step 102. In the case of a negative determination, a waiting state is entered.
The threshold A is a value indicating the necessity of maintenance, in other words, a value indicating an operating state that is a precursor of a failure of the mechanical component 14 (three-dimensional parking device 12), but the three-dimensional parking device 12 is statistically out of order. Therefore, the possibility of being stopped or damaged is a low standard, and a value corresponding to each mechanical component 14 is stored in the threshold storage area of the storage device 48. Therefore, in step 100, the threshold A corresponding to the mechanical component 14 corresponding to the operating state data received by the communication unit 40 is read from the threshold storage area of the storage device 48, and the read threshold A and the operating state data are used. Compare the values when indicated.

In the next step 102, it is determined whether or not the operating state indicated by the operating state data of the machine component 14 received by the communication unit 40 exceeds the threshold value B. If the determination is affirmative, the process proceeds to step 108. If the determination is negative, the process proceeds to step 104.
Note that the threshold value B is a criterion that is statistically higher than the threshold value A for the possibility that the multi-story parking device 12 will fail and stop or break, and the value corresponding to each mechanical component 14 is a threshold value stored in the storage device 48. It is stored in the area. Therefore, in step 102, the threshold value B corresponding to the mechanical component 14 corresponding to the operating state data received by the communication unit 40 is read from the threshold value storage area of the storage device 48, and the read threshold value B and the operating state data are used. Compare the values when indicated.

In step 104, the past operating state of the machine part 14 whose operating state exceeds the threshold A is read from the operating state storage area of the storage device 48, and based on the change in the operating state of the machine part 14 up to the present time, The operating state of the machine part 14 from the present time to the next inspection date is predicted.
Specifically, an approximate expression is calculated from the values of a plurality of operating state data stored in the storage device 48, and a predicted value (predicted operating state) of the operating state is calculated by extrapolation using the approximate expression.

  In step 106, it is determined whether or not the predicted value of the operating state calculated in step 104 exceeds the threshold value B by the next inspection date. If the determination is affirmative, the process proceeds to step 110, whereas if the determination is negative. The process proceeds to step 112.

FIG. 3 is a graph showing a prediction result of the maintenance determination process according to the first embodiment.
In the lines indicating the operating states α and β, the solid line indicates the change in the operating state up to the present time, and the broken line indicates the predicted operating state from the current time to the next inspection date. FIG. 3 illustrates two lines α and β. However, this is an example, and the actual display is a single line indicating the operating state of the target mechanical component 14. The operation states of other related mechanical parts 14 may be shown together and are not limited to two (the same applies to FIGS. 5 and 7 described later).
As shown in FIG. 3, the mechanical component 14 corresponding to the operating state α is a mechanical component 14 that exceeds the threshold B by the next inspection date, and is an operating state in which an affirmative determination is made in Step 106. On the other hand, the mechanical part 14 corresponding to the operating state β is a mechanical part 14 that does not exceed the threshold B by the next inspection date, and is an operating state that is negative in step 106.

Step 108 is a case where an affirmative determination is made in Step 102. In this case, since the operating state of the machine component 14 has already exceeded the threshold value B, the multi-story parking apparatus 12 has failed in the near future. There is a high possibility of being stopped or damaged. Therefore, it is necessary to make the information display device 52 notify the emergency parking of the service engineer to the multi-story parking apparatus 12 in which the mechanical component 14 is provided.
Accordingly, in step 108, a creation instruction for creating transmission data for notifying emergency dispatch is transmitted to the transmission data creation unit 46, and this program is terminated. In step 108, as the maintenance contents corresponding to the emergency dispatch, for example, it is considered that there is a high possibility that the corresponding machine part 14 is out of order, so “replacement” is selected.

When the creation instruction transmitted in step 108 is input, the transmission data creation unit 46 creates transmission data for notifying emergency dispatch. Then, the created transmission data is transmitted to the maintenance center 18 corresponding to the multi-story parking device 12 that is an object of emergency dispatch. In the maintenance center 18 that has received the transmission data, based on the received transmission data, the information display device 52 displays an image indicating the necessity of emergency dispatch together with an image indicating the target mechanical part 14 and an image indicating the maintenance content. To inform the service engineer.
Thereby, the service engineer can be dispatched to the multistory parking apparatus 12 which requires emergency.

Step 110 is a case where an affirmative determination is made in Step 106. In this case, since the predicted operating state of the machine part 14 exceeds the threshold B by the next inspection date, the three-dimensional operation is performed by the next inspection date. There is a high possibility that the parking device 12 will fail and stop or break. For this reason, it is necessary to cause the information display device 52 to notify the multi-story parking apparatus 12 provided with the mechanical component 14 that the temporary inspection is performed.
Therefore, in step 110, a creation instruction for creating transmission data for performing the extraordinary inspection is transmitted to the transmission data creation unit 46, and this program ends. In step 110, as a maintenance content corresponding to the case of the extraordinary inspection, for example, since it is considered that there is a high possibility that the corresponding machine part 14 has failed by the next inspection date, “replacement” or “adjustment” is performed. select.

When the creation instruction transmitted in step 110 is input, the transmission data creation unit 46 creates transmission data for notifying the implementation of the temporary inspection. Then, the created transmission data is transmitted to the maintenance center 18 corresponding to the multi-story parking apparatus 12 to be subjected to the temporary inspection. In the maintenance center 18 that has received the transmission data, based on the received transmission data, an image indicating that the information display device 52 needs to perform a temporary inspection is displayed as an image showing the target mechanical component 14 as shown in FIG. A service engineer is notified by displaying it together with an image showing a predicted result and an image showing maintenance contents.
As a result, the service engineer can perform a temporary inspection systematically.

Step 112 is a case where a negative determination is made in Step 106. In this case, since the predicted operating state of the machine part 14 does not exceed the threshold B by the next inspection date, the three-dimensional operation is performed by the next inspection date. The possibility that the parking device 12 breaks down and is stopped or damaged is low. Therefore, it is necessary for the information display device 52 to notify the multilevel parking apparatus 12 provided with the machine part 14 that the machine part 14 is inspected on the next inspection day.
Therefore, in step 112, a creation instruction for creating transmission data for inspecting the machine part 14 on the next inspection day is transmitted to the transmission data creating unit 46, and this program is terminated. In step 112, “inspection” is selected as the maintenance content for the corresponding machine part 14.

When the creation instruction transmitted in step 110 is input, the transmission data creation unit 46 creates transmission data for notifying that the machine part 14 is inspected on the next inspection day. Then, the created transmission data is transmitted to the maintenance center 18 corresponding to the multi-story parking device 12 to be subjected to inspection. In the maintenance center 18 that has received the transmission data, based on the received transmission data, the information display device 52 displays an image indicating the necessity of inspection, an image indicating the target mechanical component 14, as shown in FIG. A service engineer is notified by displaying it together with an image showing a prediction result and an image showing maintenance contents.
As a result, the service engineer inspects the corresponding machine part 14 on the next inspection day, thereby eliminating the need for useless emergency dispatch.

As described above, the remote maintenance determination system 10 according to the first embodiment determines that the three-dimensional parking device 12 is remotely maintained by transmitting the operating state of the mechanical component 14 provided in the three-dimensional parking device 12. To do. Then, the remote maintenance determination system 10 predicts the operating state of the machine part 14 from the current time to the next inspection date based on the change in the operating state of the machine part 14 up to the current time. 14 is compared with the thresholds A and B indicating the necessity of maintenance, and the maintenance execution time of the machine part 14 is determined, and the determined maintenance execution time is notified to the information display device 52.
Therefore, the remote maintenance determination system 10 according to the first embodiment can reduce the burden on the service engineer and prevent a malfunction of the multi-story parking device 12 that is a mechanical device.

  In the remote maintenance determination system 10 according to the first embodiment, the mechanical device is the multi-story parking device 12, and the operating state of the mechanical component 14 is set to the operating state when the multi-story parking device 12 is transporting the vehicle. Therefore, since the operation state from the operation state of the machine part 14 when the load is applied to the next inspection date is predicted, the necessity of maintenance of the machine part 14 can be determined more accurately.

[Second Embodiment]
Hereinafter, a second embodiment of the present invention will be described.
The configuration of the remote maintenance determination system 10 according to the second embodiment is the same as the configuration of the remote maintenance determination system 10 according to the first embodiment shown in FIG.
In the remote maintenance determination system 10 according to the second embodiment, three threshold values A, B, and C are provided as threshold values indicating the necessity of maintenance for the machine component 14 according to the contents of the maintenance.

  FIG. 4 is a flowchart showing a process flow of the maintenance determination program executed by the maintenance determination unit 44 when the failure sign reporting device 16 according to the second embodiment performs the maintenance determination process. In FIG. 4, the same steps as those in FIG. 2 are denoted by the same reference numerals as those in FIG.

  In step 106, it is determined whether or not the predicted value of the operating state calculated in step 104 exceeds the threshold value B by the next inspection date. If the determination is affirmative, the process proceeds to step 107, whereas if the determination is negative. The process proceeds to step 112.

In step 107, it is determined whether or not the predicted value of the operating state calculated in step 104 exceeds the threshold value C by the next inspection date. If the determination is affirmative, the process proceeds to step 109, whereas the determination is negative. The process proceeds to step 110.
The threshold value C is a criterion that statistically indicates the possibility that the multi-story parking device 12 will fail and stop or break is higher than the threshold value B, and the value corresponding to each mechanical component 14 is the threshold value of the storage device 48. It is stored in the storage area. Therefore, in step 107, the threshold value C corresponding to the mechanical component 14 corresponding to the operation state data received by the communication unit 40 is read from the threshold value storage area of the storage device 48, and the read threshold value C and the operation state data are used. Compare the values when indicated.

Step 109 is a case where an affirmative determination is made in Step 107. In this case, since the predicted operating state of the mechanical component 14 exceeds the threshold value C by the next inspection date, the three-dimensional operation is performed by the next inspection date. The parking device 12 is more likely to stop and break due to a failure. Therefore, it is necessary for the information display device 52 to notify the multi-story parking device 12 provided with the mechanical component 14 of the implementation of the temporary inspection in the near future.
Therefore, in step 109, a creation instruction for creating transmission data for performing a temporary inspection in the near future is transmitted to the transmission data creation unit 46, and this program is terminated. In step 109, as a maintenance content corresponding to a temporary inspection in the near future, for example, since it is considered that there is a high possibility that the corresponding machine part 14 has failed by the next inspection date, “replacement” or “adjustment”. Select.

The emergency dispatch date notified in step 108 according to the second embodiment is dispatched immediately (on the day), but the temporary inspection date notified in step 109 is the same day. It is not necessary, but it is assumed that it is during both days (a few days) from the present time. Furthermore, the implementation date of the temporary inspection notified in step 110 according to the second embodiment may be about one week ahead of the current time.
In this way, by changing the implementation date of emergency dispatch and extraordinary inspection step by step, the schedule change of the service engineer on the day will occur in the emergency dispatch on that day, increasing the burden on the person in charge on that day, but tomorrow Then, it is possible to adjust the schedule, such as calling a service engineer on holiday. In addition, if it is about one week away, it is possible to adjust the work schedule so that the person in charge who is going to work can handle, so the schedule adjustment becomes easier and the burden on the service engineer is reduced.

FIG. 5 is a graph showing a prediction result of the maintenance determination process according to the second embodiment.
In the line indicating the operating state γ, the solid line indicates the change in the operating state up to the present time, and the broken line indicates the predicted operating state from the current time to the next inspection date.
As shown in FIG. 5, the mechanical component 14 corresponding to the operating state γ is a mechanical component 14 that exceeds the threshold C by the next inspection date, and is an operating state in which an affirmative determination is made in Step 107.

  As described above, the remote maintenance determination system 10 according to the second embodiment can reduce the burden on the service engineer and can prevent the mechanical component 14 from being broken. Since the threshold is provided, the service engineer can perform more accurate maintenance on the multi-story parking apparatus 12.

[Third Embodiment]
Hereinafter, a third embodiment of the present invention will be described.
The configuration of the remote maintenance determination system 10 according to the third embodiment is the same as the configuration of the remote maintenance determination system 10 according to the first embodiment shown in FIG.
In the remote maintenance determination system 10 according to the third embodiment, four threshold values A, A ′ and threshold values B, B ′ indicating the necessity of maintenance for the machine component 14 are provided.
Specifically, a reference value is provided for the operation state of each machine component 14, and the remote maintenance determination system 10 determines whether the operation state includes threshold values A and A ′ including the reference value, or ranges of threshold values B and B ′. By determining whether or not to deviate from the above, a sign of a failure of the mechanical component 14 is detected.

  FIG. 6 is a flowchart showing a processing flow of the maintenance determination program executed by the maintenance determination unit 44 when the failure sign reporting device 16 according to the third embodiment performs the maintenance determination processing. In FIG. 6, the same steps as those in FIG. 2 are denoted by the same reference numerals as those in FIG.

First, in step 100 ′, it is determined whether or not the operating state indicated by the operating state data of the mechanical component 14 received by the communication unit 40 has deviated from the range of the thresholds A and A ′. On the other hand, the process proceeds to step 102 ′.
Note that the thresholds A and A ′ are standards that statistically indicate that the multi-story parking apparatus 12 is unlikely to stop and break due to a failure, and values corresponding to each mechanical component 14 are stored in the threshold storage area of the storage device 48. It is remembered. Therefore, in step 100 ′, the threshold values A and A ′ corresponding to the mechanical component 14 corresponding to the operation state data received by the communication unit 40 are read from the threshold storage area of the storage device 48, and the read threshold values A and A ′ are read. Compare the value with the value as indicated by the operating state data.

In the next step 102 ′, it is determined whether or not the operating state indicated by the operating state data of the machine part 14 received by the communication unit 40 has deviated from the range of the threshold values B and B ′. On the other hand, if the determination is negative, the process proceeds to step 104.
Note that the thresholds B and B ′ are standards that are statistically higher than the thresholds A and A ′ that are likely to cause the multi-story parking device 12 to fail and stop or be damaged. It is stored in the threshold storage area of the storage device 48. Therefore, in step 102 ′, the threshold values B and B ′ corresponding to the mechanical component 14 corresponding to the operation state data received by the communication unit 40 are read from the threshold storage area of the storage device 48, and the read threshold values B and B ′ are set. Compare the value with the value as indicated by the operating state data.

  In step 104, the past operating state of the machine part 14 whose operating state has deviated from the range of the thresholds A and A ′ is read from the operating state storage area of the storage device 48, and the operating state of the machine part 14 up to the present time is changed. Based on this, the operating state of the mechanical component 14 from the present time to the next inspection date is predicted.

  In step 106 ′, it is determined whether or not the predicted value of the operating state calculated in step 104 deviates from the range of the thresholds B and B ′ by the next inspection date. If the determination is affirmative, the process proceeds to step 110. On the other hand, in the case of negative determination, the routine proceeds to step 112.

FIG. 7 is a graph showing a prediction result of the maintenance determination process according to the third embodiment.
In the lines indicating the operating states α ′ and β ′, the solid line indicates the change in the operating state up to the current time, and the broken line indicates the predicted operating state from the current time to the next inspection date.
As shown in FIG. 7, the mechanical part 14 corresponding to the operating state α ′ is a mechanical part 14 that deviates from the range of the thresholds B and B ′ by the next inspection date, and a positive determination is made in step 106 ′. It is in an operating state. On the other hand, the mechanical component 14 corresponding to the operating state β ′ is a mechanical component 14 that does not deviate from the range of the thresholds B and B ′ by the next inspection date, and is an operating state that is negative in step 106 ′.

  As described above, the remote maintenance determination system 10 according to the third embodiment can reduce the burden on the service engineer and can prevent the machine component 14 from being broken. Since the threshold is provided, the service engineer can perform more accurate maintenance on the multi-story parking apparatus 12.

[Fourth Embodiment]
The fourth embodiment of the present invention will be described below.
FIG. 8 is a block diagram showing the configuration of the remote maintenance determination system 10 according to the fourth embodiment. In FIG. 8, the same components as those in FIG. 1 are denoted by the same reference numerals as those in FIG.

The information display device 52 of the maintenance center 18 has a plurality of maintenance contents corresponding to the maintenance execution timing obtained by executing the maintenance determination process, the predicted operation state of the machine component 14, and the machine component 14 requiring maintenance. Is displayed.
Since a plurality of maintenance contents are displayed on the information display device 52, the service engineer determines the maintenance contents to be executed according to the maintenance execution timing and the predicted operation state.

The maintenance center 18 includes an information input device 54.
The information input device 54 has a maintenance content selection function that allows a service engineer to select maintenance content to be executed from among a plurality of maintenance content displayed on the information display device 52.
That is, the service engineer selects the determined maintenance content from the plurality of maintenance content displayed on the information display device 52 via the information input device 54. Then, the selected maintenance content is stored in a predetermined area of the storage device 48 of the data management unit 42 via the communication unit 50.

As described above, the remote maintenance determination system 10 according to the present fourth embodiment selects the maintenance content selected via the information input device 54 by storing it in correspondence with the maintenance execution timing and the predicted operation state. The details of maintenance performed can be easily confirmed at a later date.
As the information input device 54, a personal computer, a portable terminal device, or the like is used, and the information display device 52 may also be used.

[Fifth Embodiment]
The fifth embodiment of the present invention will be described below.
FIG. 9 is a block diagram showing the configuration of the remote maintenance determination system 10 according to the fifth embodiment. 9 that are the same as those in FIG. 8 are assigned the same reference numerals as in FIG. 8, and descriptions thereof are omitted.

The information input device 54 according to the fifth embodiment has a threshold correction function.
The threshold value correction function corrects the threshold value stored in the threshold value storage area of the storage device 48 to a value input via the information input device 54.

As a specific example, a threshold value is set for each multi-story parking device 12 according to the number of vehicles entering / exiting the multi-story parking device 12 (for example, the number of vehicles entering / exiting in January, hereinafter referred to as “number of vehicles entering / exiting”). To correct. If the number of storage / removal units in the multi-story parking device 12 is small, the number of times that the mechanical component 14 is activated also decreases. If the same threshold value as that of the multi-story parking apparatus 12 having a large number of entering / exiting vehicles is set up to such a multi-story parking apparatus 12, even if no replacement or emergency is required, the service engineer is required for maintenance. May be dispatched to.
Therefore, unnecessary dispatch of the service engineer can be suppressed by correcting the threshold value for each multi-story parking device 12 according to the number of entering and leaving. It should be noted that the number of incoming / outgoing vehicles of each multi-story parking device 12 may be stored as a database in the storage device 48, or an operator who corrects the threshold value from the operation state data stored in the operation state storage area of the storage device 48. You may judge.

Furthermore, the information input device 54 according to the fifth embodiment performs the maintenance execution determined in the maintenance determination processing after the service engineer is dispatched to the multi-story parking device 12 and performs maintenance according to the result of the maintenance determination processing. It is possible to accept an input as to whether or not the time is appropriate.
The threshold value can be corrected according to the result input by the information input device 54.

そして、閾値は、上記入力された選択結果に応じた表２に示される基準に従って、データ管理部４２によって予め設定された修正量で修正される。

Specifically, a service engineer who has performed emergency dispatch, temporary inspection, or periodic inspection based on the maintenance execution time determined in the maintenance determination process, performs the maintenance Any one of the contents is selected and input via the information input device 54.

Then, the threshold value is corrected by a correction amount preset by the data management unit 42 in accordance with the criteria shown in Table 2 corresponding to the input selection result.

In addition, as the timing of correction of the threshold value, when the selection results input via the information input device 54 are periodically aggregated and corrected collectively, the correction of the corresponding threshold is performed as soon as the selection result is obtained. In this case, the data management unit 42 arbitrarily sets the value.
The operator (service engineer) may input the correction amount via the information input device 54 without using a correction amount set in advance as the threshold correction amount.

  As mentioned above, although this invention was demonstrated using said each embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. Various changes or improvements can be added to the above-described embodiments without departing from the gist of the invention, and embodiments to which the changes or improvements are added are also included in the technical scope of the present invention.

  For example, in each of the above-described embodiments, the embodiment has been described in which the mechanical device that is the object of the maintenance determination process by the remote maintenance determination system 10 is the three-dimensional parking device 12, but the present invention is not limited to this, For example, the device may be another mechanical device different from a three-dimensional parking device such as an elevator.

  In each of the above embodiments, the remote maintenance determination system 10 is described as a device in which the failure sign reporting device 16 and the maintenance center 18 are connected via a communication network. However, the present invention is limited to this. Instead, the remote maintenance determination system 10 may be configured such that the maintenance center 18 includes the failure sign notification device 16.

  Further, in each of the embodiments described above, the mode in which the operating state of the mechanical component 14 from the current time to the next inspection date is predicted when the operating state of the mechanical component 14 exceeds the threshold value A has been described. The operation state data of the machine part 14 may be predicted every time the operation sign data of the machine part 14 is input to the failure sign notification device 16, and the operation state of the machine part 14 from the current time to the next inspection date may be predicted.

  Further, in each of the above-described embodiments, the mode in which the information display device 52 is used as a device for notifying the maintenance execution time and the like has been described. However, the present invention is not limited to this, and an apparatus for notifying the maintenance execution time and the like. It is also possible to use a loudspeaker that informs the maintenance execution time by voice.

  Further, in each of the above embodiments, the mode in which the operation state is predicted from the current time to the next inspection has been described, but the present invention is not limited to this, and the operation state is predicted in the period. One period after the current time, another check date after the current time, an annual check date from the current time, or a year after the current time may be used for another period.

DESCRIPTION OF SYMBOLS 10 Remote maintenance judgment system 12 Multi-story parking apparatus 14 Machine part 16 Failure sign notification apparatus 18 Maintenance center 44 Maintenance judgment part 52 Information display apparatus 54 Information input apparatus

Claims (8)

A remote maintenance determination device for remotely monitoring the mechanical device and determining the necessity of maintenance by transmitting an operating state of a mechanical component provided in the mechanical device,
Predicting means for predicting the operating state of the machine part from the current time to a predetermined time based on a change in the operating state of the machine part up to the current time;
A determination unit that determines a maintenance execution time of the machine part by comparing a prediction result of the operation state predicted by the prediction unit with a threshold value indicating a need for maintenance of the machine part;
Notification means for notifying the maintenance execution time determined by the determination means;
Remote maintenance judgment device equipped with. The mechanical device is a multilevel parking device,
The remote maintenance determination device according to claim 1, wherein the operation state of the mechanical component is an operation state when the multi-story parking apparatus is transporting a vehicle.   The remote maintenance determination device according to claim 1, wherein a plurality of the threshold values are set according to maintenance contents.   The remote maintenance determination device according to any one of claims 1 to 3, wherein the threshold value can be corrected. An input means for receiving an input as to whether or not the maintenance execution time determined by the determination means is appropriate;
The remote maintenance determination device according to any one of claims 1 to 4, wherein the threshold value can be modified according to a result input by the input unit.   6. The display device according to claim 1, wherein the notification unit is a display unit that displays a maintenance execution time determined by the determination unit and a maintenance content corresponding to the mechanical part requiring maintenance. Remote maintenance judgment device. The notification means includes a maintenance execution time determined by the determination means, a predicted result of an operation state of the machine part predicted by the prediction means, and a plurality of maintenance contents corresponding to the machine parts requiring maintenance. Display means for displaying,
The remote maintenance determination apparatus according to any one of claims 1 to 6, wherein a maintenance content selected via an input means among a plurality of maintenance contents displayed on the display means is stored. A remote maintenance determination method for determining remote maintenance of a mechanical device by transmitting an operating state of a machine part provided in the mechanical device,
A first step of predicting an operating state of the machine component from a current time to a predetermined time based on a change in the operating state of the machine component up to the current time;
A second process stage for determining a maintenance execution time of the machine part by comparing a predicted result of the operation state predicted by the first process with a threshold value indicating a need for maintenance of the machine part;
A third step of notifying the maintenance execution time determined in the second step;
Remote maintenance judgment method including.

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