Electric opening / closing body device, server device, maintenance timing prediction system of electric opening / closing body device, and maintenance timing prediction method of electric opening / closing body device

Abstract

To provide an electric opening / closing body device capable of predicting appropriate maintenance timing on a basis of temporal deterioration of the device.SOLUTION: An electric opening / closing body device comprises: an opening / closing body provided openably / closably; a driving part for driving the opening / closing body; an operation state information acquisition part for acquiring operation state information during opening / closing operation of the opening / closing body; a storage part for accumulating and storing the operation state information acquired by the operation state information acquisition part; and a prediction part for predicting maintenance timing from a temporal change of the operation state information accumulated in the storage part.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to an electric opening / closing device, a server device, a maintenance timing prediction system for an electric opening / closing device, and a maintenance timing prediction method for an electric opening / closing device. [Background technology]

[0002] Conventionally, in a device having an opening / closing body that opens and closes an opening, a technology is known in which maintenance information is acquired from multiple sensing means by a communication start command issued by operating a button to start communication, and maintenance information based on the acquired sensing signals is wirelessly transmitted to the outside, making it easy to check the maintenance information (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2017-179736 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional technology simply wirelessly transmits maintenance information acquired when a button is pressed to the outside, and a service technician must check the received maintenance information to determine whether maintenance is required. However, because device deterioration progresses gradually as the door is repeatedly opened and closed over a long period of time, simply checking the received maintenance information is not enough to determine whether the device has deteriorated over time, making it difficult to determine the appropriate time for maintenance.

[0005] The present disclosure aims to provide an electric opening / closing device, a server device, a maintenance timing prediction system for an electric opening / closing device, and a maintenance timing prediction method for an electric opening / closing device that are capable of predicting appropriate maintenance timing based on deterioration of the device over time. [Means for solving the problem]

[0006] The present disclosure relates to an electric opening / closing body device comprising an opening / closing body that can be opened and closed, a drive unit that drives the opening / closing body, an operation status information acquisition unit that acquires operation status information during the opening and closing operation of the opening / closing body, a memory unit that accumulates and stores the operation status information acquired by the operation status information acquisition unit, and a prediction unit that predicts the timing of maintenance from changes over time in the operation status information accumulated in the memory unit. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a diagram showing an electric opening / closing body device according to an embodiment; [Figure 2] FIG. 2 is a functional block diagram of the electric opening / closing device. [Figure 3] FIG. 2 is a functional block diagram showing the configuration of a control unit of the electric opening / closing body device. [Figure 4] 10 is a graph illustrating the principle of the maintenance timing prediction process. [Figure 5] 10 is a flowchart showing a process for predicting a maintenance time in an electric opening / closing body device. [Figure 6] 10 is a flowchart showing a maintenance timing prediction process for an electric opening / closing body device. [Figure 7] 10 is a graph illustrating maintenance determination. [Figure 8] 1 is a diagram showing a maintenance timing prediction system for an electric opening / closing body device according to a first embodiment. [Figure 9] 4 is a flowchart showing a process for predicting a maintenance time in the maintenance time prediction system for an electric opening-closing body device according to the first embodiment. [Figure 10]FIG. 10 is a diagram showing a maintenance timing prediction system for an electric opening / closing body device according to a second embodiment. [Figure 11] FIG. 10 is a functional block diagram of an electric opening-closing device in a maintenance timing prediction system for an electric opening-closing device according to a second embodiment. [Figure 12] FIG. 10 is a functional block diagram of a server device in a maintenance timing prediction system for an electric opening / closing body device according to a second embodiment. [Figure 13] 10 is a flowchart showing processing for an electric opening-closing device in a maintenance timing prediction system for an electric opening-closing device according to a second embodiment. [Figure 14] 10 is a flowchart showing the processing of a server device in a maintenance timing prediction system for an electric opening / closing body device according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. Figures 1 and 2 show an electric shutter device 1. The electric shutter device 1 is one embodiment of an electric opening / closing body device. In Figures 1 and 2, the electric shutter device 1 includes an electric shutter 2 that can open and close and shield an opening 12 for a window formed in a wall 11 of a building 10, an entrance and exit of a store or garage, etc.; an operation status information acquisition unit 3 that acquires operation status information of each unit of the electric shutter device 1; and a control device 4 that controls the electric shutter 2.

[0009] The electric shutter 2 comprises a winding-type shutter section 21 as an opening and closing body formed by connecting multiple slats, a winding section 22 capable of winding up and unwinding the shutter section 21, and a drive section 23 having a motor (not shown) that drives the winding section 22 to rotate.

[0010] The shutter unit 21 is wound up or down by the winding unit 22, which rotates by the drive unit 23, and the lower end moves upward or downward to open or close the opening 12. When moving from a closed state to an open state in the opening and closing operation of the electric shutter 2, the drive unit 23 drives the motor in the opening direction, causing the shutter unit 21 to be wound up by the winding unit 22. As a result, when the opening 12 is closed, the opening 12 opens from the bottom side. When moving from an open state to a closed state in the opening and closing operation of the electric shutter 2, the drive unit 23 drives the motor in the closing direction, causing the shutter unit 21 to be wound down by the winding unit 22. As a result, when the opening 12 is open, the opening 12 closes from the top side.

[0011] The operating state information acquisition unit 3 acquires various types of operating state information of the electric shutter device 1 while the shutter unit 21 is performing an opening / closing operation. The operating state information is information that indicates the state of the electric shutter device 1 while the shutter unit 21 is performing an opening / closing operation. Specifically, the operating state information is the voltage value, current value, motor data during the opening / closing operation, etc. of the electric shutter device 1 while the shutter unit 21 is performing an opening / closing operation. The voltage value is a primary voltage, a step-down voltage, etc. The motor data is data such as a load measurement value that measures the torque of the motor, the rotation speed, rotation direction or rotation position of the motor, and motor temperature. The operating state information acquired by the operating state information acquisition unit 3 may be any one type of these operating state information, or any two or more types of these operating state information.

[0012] The operation state information acquisition unit 3 is a measuring instrument that measures operation state information, and an appropriate measuring instrument is selected and used depending on the type of operation state information to be acquired. Specific examples of the operation state information acquisition unit 3 include a voltmeter that measures voltage values, an ammeter that measures current values, a load meter that measures motor torque, a rotational position sensor that measures the motor's rotation speed, rotation direction, or rotational position, and a temperature sensor that measures the motor temperature. The operation state information acquisition unit 3 is provided in an appropriate location in the electric shutter device 1 depending on the operation state information to be acquired. Each time the shutter unit 21 performs at least one of an opening operation and a closing operation, the operation state information acquisition unit 3 can acquire operation state information at any one time point or multiple times during the operation. The operation state information acquired by the operation state information acquisition unit 3 is input to the control device 4.

[0013] The control device 4 includes functional units, a control unit 41, a storage unit 42, and a communication unit 43. In FIG. 1, the control device 4 is shown separated from the electric shutter 2, for example, so as to be disposed in a control box installed on an indoor wall, but the control device 4 may also be disposed, for example, in the housing of the electric shutter 2, near the rolled-up shutter unit 21. The control unit 41 and the storage unit 42 may be provided in a server device not shown in FIG. 1. The control unit 41 and the storage unit 42 may each be provided in separate server devices. These will be described in more detail below.

[0014] The control unit 41 is configured with a CPU (Central Processing Unit) for controlling the electric shutter device 1 and controls the operation of each unit of the electric shutter device 1. Specifically, the control unit 41 controls the drive unit 23 to rotate the winding unit 22 and open / close the shutter unit 21. The control unit 41 accumulates and stores the operation status information of the electric shutter device 1 acquired by the operation status information acquisition unit 3 in the memory unit 42. The control unit 41 controls the communication unit 43 to communicate with an external terminal X. The external terminal X is a terminal capable of wirelessly transmitting and receiving various information to and from the communication unit 43 of the control device 4. The external terminal X is operated by a user or a maintenance person (hereinafter, collectively referred to simply as "user"). The external terminal X is a terminal that has an operation application for the electric shutter device 1 installed and is associated with the electric shutter device 1, and is, for example, a remote control device, a mobile phone terminal, or the like. The number of external terminals X associated with the electric shutter device 1 is not limited to one, and may be two or more.

[0015] As shown in FIG. 3, the control unit 41 is configured to have the following functional units: a reception unit 411, a prediction unit 412, a threshold generation unit 413, and a switching unit 414.

[0016] The reception unit 411 can receive various instruction requests and setting information input to the electric shutter device 1 by a user operating the external terminal X or by a user operating an operation button (not shown) provided on the electric shutter device 1. The instruction requests include an open instruction request to open the shutter unit 21, a close instruction request to close the shutter unit 21, a stop instruction request to stop the operation of the shutter unit 21, etc. The setting information includes maintenance start information indicating that maintenance has been performed, maintenance end information indicating that maintenance has been completed, etc.

[0017] The receiving unit 411 can receive input of various types of operation state information acquired by the operation state information acquiring unit 3. The control unit 41 accumulates and stores the operation state information received by the receiving unit 411 from the operation state information acquiring unit 3 in the storage unit 42 as history information of the operation state.

[0018] The control unit 41 controls the storage unit 42 to accumulate and store the operation status information received by the reception unit 411 at predetermined operation intervals of the shutter unit 21. The predetermined operation interval of the shutter unit 21 is a period defined by the number of times at least one of the opening operation and the closing operation of the shutter unit 21 is performed. For example, if the operation interval is the operation interval of the opening operation, the control unit 41 counts the number of times the opening operation of the shutter unit 21 is performed, and when the count value reaches a predetermined value, resets the count value and accumulates and stores the operation status information input from the operation status information acquisition unit 3 during that operation in the storage unit 42. This reduces the amount of data of the operation status information accumulated in the storage unit 42 relative to the number of times the opening and closing operations are performed, thereby reducing the load on the storage unit 42. The predetermined operation interval of the shutter unit 21 may be a preset fixed value or may be arbitrarily set by the user via the external terminal X.

[0019] The prediction unit 412 makes a maintenance determination and predicts the timing of maintenance based on the operating state information acquired by the operating state information acquisition unit 3. Furthermore, the prediction unit 412 makes a failure determination based on the operating state information acquired by the operating state information acquisition unit 3. As shown in FIG. 4 , a maintenance determination threshold for determining whether maintenance is necessary and a failure determination threshold for determining whether a failure has occurred are set in the prediction unit 412. The maintenance determination threshold and the failure determination threshold are thresholds for measurement values ​​of the operating state information. The failure determination threshold is a fixed value and is set to a value greater than the maintenance determination threshold. The maintenance determination threshold is a changeable threshold. The prediction unit 412 compares the operating state information acquired by the operating state information acquisition unit 3 and stored in the storage unit 42 with the maintenance determination threshold and the failure determination threshold and determines whether the operating state information exceeds these thresholds, thereby making a maintenance determination as to whether maintenance is necessary and a failure determination as to whether a failure has occurred.

[0020] FIG. 4 shows an overview of the method for determining the maintenance timing in the prediction unit 412. The vertical axis represents the measured values ​​of the operating state information, such as the voltage value, acquired by the operating state information acquisition unit 3, and the horizontal axis represents the number of opening and closing operations of the shutter unit 21. The operating state information actually used to determine the maintenance timing is intermittent, calculated every predetermined number of opening and closing operations, but in FIG. 4, the operating state information is shown as a continuous curve. The prediction unit 412 compares the operating state information acquired from the operating state information acquisition unit 3 and stored in the storage unit 42 with a maintenance determination threshold and a failure determination threshold.

[0021] When the prediction unit 412 determines that the operating status information has exceeded the maintenance determination threshold, it sends a predetermined maintenance notification to the user's external terminal X via the communication unit 43 described below, indicating that it is time for maintenance. This allows the user to take appropriate measures to perform maintenance on the electric shutter device 1 in a timely manner. When the prediction unit 412 determines that the operating status information has exceeded the malfunction determination threshold, it sends a predetermined malfunction occurrence notification to the user's external terminal X via the communication unit 43 described below, indicating that a malfunction has occurred. This allows the user to take appropriate measures to repair the malfunction of the electric shutter device 1 in a timely manner. The specific prediction processing in the prediction unit 412 will be described later.

[0022] The threshold generation unit 413 generates a maintenance determination threshold for the prediction unit 412 to determine the timing of maintenance based on changes over time in the operating status information over a predetermined period. The changes over time in the operating status information indicate whether the deterioration of the electric shutter device 1 is progressing rapidly or slowly. The changes over time in the operating status information are, for example, the slope of the graph shown in FIG. 4, and are calculated from multiple pieces of operating status information over a predetermined period stored in the storage unit 42 as historical information on the operating status. This makes it possible to determine the need for maintenance in accordance with the progression of deterioration of the electric shutter device 1, and to predict an appropriate maintenance timing based on the deterioration of the electric shutter device 1 over time.

[0023] The threshold generation unit 413 can generate a maintenance judgment threshold based on changes over time in the operating state information after the shutter unit 21 has been opened and closed for a predetermined period of time. The predetermined period is, for example, the period until maintenance is performed, or the period until a preset number of opening and closing operations is reached after the maintenance judgment threshold is determined. Because the maintenance judgment threshold can be generated from the tendency of changes in the operating state of each electric shutter device 1, it is possible to generate a maintenance judgment threshold that takes into account individual differences between each electric shutter device 1, such as size and installation state. This makes it possible to predict the timing of maintenance reliably without being affected by individual differences.

[0024] The switching unit 414 switches whether the maintenance timing prediction function of the prediction unit 412 is enabled or disabled. For example, when the receiving unit 411 receives maintenance start information from the user, the switching unit 414 switches the prediction function of the prediction unit 412 to OFF, and when the receiving unit 411 receives maintenance end information from the user, the switching unit 414 switches the prediction function of the prediction unit 412 to ON. When the receiving unit 411 receives an instruction request to turn the prediction function OFF from the user via the external terminal X, the switching unit 414 switches the prediction function of the prediction unit 412 to OFF, and when the receiving unit 411 receives an instruction request to turn the prediction function ON from the user via the external terminal X, the switching unit 414 switches the prediction function of the prediction unit 412 to ON. When multiple external terminals X are associated with the electric shutter device 1, the switching unit 414 can set, for each external terminal X, whether to accept an instruction request to turn the prediction function ON or OFF.

[0025] The storage unit 42 is configured by a storage device such as an SSD (Solid State Drive) or RAM (Random Access Memory). The storage unit 42 stores operation programs for executing various functions of the electric shutter device 1. Furthermore, the storage unit 42 accumulates and stores the operation status information received from the operation status information acquisition unit 3 by the reception unit 411 as history information of the operation status.

[0026] 2, the communication unit 43 has a receiving unit 431 and a transmitting unit 432. The receiving unit 431 is capable of receiving various instruction requests and setting information from a user transmitted from an external terminal X. The instruction requests and setting information received by the receiving unit 431 are input to the control unit 41 and accepted by the accepting unit 411. The transmitting unit 432 is capable of transmitting various information related to the electric shutter device 1 to the external terminal X. The information transmitted from the transmitting unit 432 to the external terminal X includes information on maintenance notifications and failure occurrence notifications. The communication unit 43 is not limited to one that performs wireless communication, and may have a function of performing wired communication via a communication cable.

[0027] Next, the processing operation when predicting the time for maintenance in the electric shutter device 1 will be described with reference to Figures 5 to 7. The processing operation for predicting the time for maintenance is executed according to a predetermined program stored in the storage unit 42 or the like.

[0028] 5, in step S1, the control unit 41 receives, via the reception unit 411, operation status information acquired by the operation status information acquisition unit 3 when the opening or closing operation of the shutter unit 21 is performed. Here, the description will be given assuming that operation status information during the opening operation of the shutter unit 21 is received. After receiving the operation status information, the process proceeds to step S2.

[0029] In step S2, the control unit 41 determines whether or not the opening operation of the shutter unit 21 has been completed. If it is determined that the opening operation has been completed (step S2: YES), the process proceeds to step S3. If it is determined that the opening operation has not been completed (step S2: NO), the control unit 41 waits until the opening operation is completed.

[0030] The control unit 41 counts the number of times the opening operation of the shutter unit 21 is performed each time. In step S3, the control unit 41 determines whether a predetermined operation interval for storing operation status information has elapsed based on the count value of the number of times the opening operation of the shutter unit 21 has been performed. If it is determined that the predetermined operation interval has elapsed (step S3: YES), the process proceeds to step S4. If it is determined that the predetermined operation interval has not elapsed (step S3: NO), the control unit 41 ends the process of predicting the current maintenance time.

[0031] In step S4, the control unit 41 accumulates and stores the operation state information received by the reception unit 411 from the operation state information acquisition unit 3 at that time in the storage unit 42. After storing the operation state information, the process proceeds to step S5.

[0032] In step S5, the control unit 41 determines whether the prediction function is set to ON by the switching unit 414. If it is determined that the prediction function is set to ON (step S5: YES), the process proceeds to step S6. If it is determined that the prediction function is set to OFF (step S5: NO), the control unit 41 ends the process of predicting the current maintenance time.

[0033] In step S6, the control unit 41 starts the process of predicting the time for maintenance. A specific prediction process is shown in Fig. 6. In step S61, the control unit 41 determines whether or not maintenance is currently being performed on the electric shutter device 1. Whether or not maintenance is currently being performed is determined by determining whether maintenance start information or maintenance end information has been received from the user. If it is determined that maintenance is currently being performed (step S61: YES), the process proceeds to step S62. If it is determined that maintenance is not currently being performed (step S61: NO), the process proceeds to step S66.

[0034] In step S62, the control unit 41 suspends the prediction process in the prediction unit 412. This stops the prediction function as shown in Fig. 7. Thereafter, the process proceeds to step S63.

[0035] The period during which the prediction function of prediction unit 412 is stopped is the period during which a new maintenance determination threshold is generated. In step S63, control unit 41 reads out the operating state information accumulated in storage unit 42 and calculates the gradient of change, which is the change over time in the operating state information, from the operating state history. Thereafter, the process proceeds to step S64.

[0036] In step S64, based on the gradient of change in the operational state information calculated in step S63, the control unit 41 generates a new maintenance determination threshold in the threshold generation unit 413. After the new maintenance determination threshold is generated, the process proceeds to step S65.

[0037] In step S65, the control unit 41 determines whether or not maintenance of the electric shutter device 1 has been completed by receiving maintenance completion information from the user. If it is determined that maintenance has been completed (step S65: YES), the process proceeds to step S66. If it is determined that maintenance has not been completed (step S65: NO), the control unit 41 waits until maintenance is completed.

[0038] After the maintenance is performed, in step S66, the control unit 41 updates the existing maintenance determination threshold set in the prediction unit 412 to the new maintenance determination threshold generated in step S64. As shown in Fig. 7, the maintenance determination threshold newly generated for the predicted function outage period after the maintenance is performed is set to a value greater than the previous maintenance determination threshold. This is because, in general, performing maintenance temporarily improves the deterioration state of the electric shutter device 1, but it is difficult to completely restore the device to its initial state.

[0039] The magnitude of the value of the maintenance determination threshold to be updated is determined based on the slope of change in the operational status information. For example, as shown in FIG. 7, when comparing a case where the slope of change in the operational status information is steep with a case where the slope of change is gradual, it is determined that the deterioration state progresses more quickly when the slope of change is steep, and it is therefore desirable to perform maintenance earlier than when the slope of change is gradual. Therefore, the change range h1 of the value of the maintenance determination threshold to be generated and updated when the slope of change in the operational status information is steep is smaller than the change range h2 of the value of the maintenance determination threshold to be generated and updated when the slope of change in the operational status information is gradual. After the maintenance determination threshold is updated, the process proceeds to step S67.

[0040] In step S67, the control unit 41 compares the operation status information stored in the storage unit 42 in step S4 shown in Fig. 5 with the maintenance determination threshold in the prediction unit 412, and determines whether the value of the operation status information exceeds the maintenance determination threshold. Thereafter, the process proceeds to step S7 shown in Fig. 5.

[0041] 5, in step S7, the control unit 41 determines whether it is time for maintenance. As shown in Fig. 7, if it is determined that the operation state information acquired at the time of the number of opening and closing operations exceeds the maintenance determination threshold (step S7: YES), it is determined that it is time for maintenance, and the process proceeds to step S8. If it is determined that the maintenance determination threshold has not been exceeded (step S7: NO), the control unit 41 ends the maintenance time prediction process.

[0042] In step S8, the control unit 41 controls the communication unit 43 to transmit a maintenance notification from the transmission unit 432 to the external terminal X. Therefore, the transmission unit 432 in the communication unit 43 functions as a determination result transmission unit that transmits the determination result of the maintenance time. This allows the user to recognize that the electric shutter device 1 requires maintenance. After transmitting the maintenance notification, the control unit 41 ends the maintenance time prediction process.

[0043] In the above embodiment, the operating status information acquired by the operating status information acquisition unit 3 is configured to be stored in the storage unit 42 provided in the electric shutter device 1. However, the storage unit that stores the operating status information may be provided in a server device separate from the electric shutter device 1.

[0044] FIG. 8 shows an overview of a maintenance timing prediction system 100 for an electric shutter device 1 that includes a server device 5 separate from the electric shutter device 1. The electric shutter device 1 has the same configuration as the electric shutter device 1 described above. The server device 5 includes a memory unit 51 that accumulates and stores the operating status information acquired by the operating status information acquisition unit 3. The specific server device 5 is not particularly limited. The server device 5 may be, for example, a home server installed indoors and communicably connected to the control device 4 of the electric shutter device 1 via a wired or wireless local area network (LAN), or a cloud server connected to the control device 4 of the electric shutter device 1 via an internet connection. This eliminates the need to store the operating status information in the memory unit 42 of the electric shutter device 1, further reducing the load on the memory unit 42. The server device 5 can use a memory unit 51 with a large storage capacity, so it is possible to accumulate and store the operating status information acquired by the operating status information acquisition unit 3 one by one.

[0045] The processing operations performed when predicting the maintenance time in this maintenance time prediction system 100 will be described with reference to FIG.

[0046] In step S101, the control unit 41 receives, via the reception unit 411, the operation state information acquired by the operation state information acquisition unit 3 when the opening / closing operation of the shutter unit 21 is performed. Here, the description will be given assuming that the operation state information during the opening operation of the shutter unit 21 is received.

[0047] In step S102, the control unit 41 determines whether or not the opening operation of the shutter unit 21 has been completed. If it is determined that the opening operation has been completed (step S102: YES), the process proceeds to step S103. If it is determined that the opening operation has not been completed (step S102: NO), the control unit 41 waits until the opening operation is completed.

[0048] In step S103, the control unit 41 determines whether or not it is in a state where it is communicably connected to the server device 5. If it is determined that it is connected to the server device 5 (step S103: YES), the process proceeds to step S104. If it is determined that it is not connected to the server device 5 (step S103: NO), the process proceeds to step S109.

[0049] In step S104, each time the operation status information acquisition unit 3 acquires operation status information, the control unit 41 controls the communication unit 43 to transmit the operation status information from the transmission unit 432 to the server device 5. The server device 5 accumulates and stores the operation status information transmitted from the electric shutter device 1 in the memory unit 51. After transmitting the operation status information to the server device 5, the process proceeds to step S105.

[0050] In step S105, the control unit 41 determines whether the prediction function has been set to ON by the switching unit 414. If it is determined that the prediction function has been set to ON (step S105: YES), the process proceeds to step S106. If it is determined that the prediction function has been set to OFF (step S105: NO), the control unit 41 ends the process of predicting the current maintenance time.

[0051] In step S106, the control unit 41 receives the operating status information stored in the storage unit 51 from the server device 5, and starts the maintenance timing prediction process. The specific prediction process is the same as in Fig. 6, so a description thereof will be omitted. After the maintenance timing prediction process is executed, the process proceeds to step S107.

[0052] In step S107, the control unit 41 determines whether or not it is time for maintenance based on the result of the prediction process. If it is determined that it is time for maintenance (step S107: YES), the process proceeds to step S108. If it is determined that it is not time for maintenance (step S107: NO), the control unit 41 ends the process of predicting the time for maintenance.

[0053] In step S108, the control unit 41 controls the communication unit 43 to transmit a maintenance notification from the transmission unit 432 to the external terminal X. After transmitting the maintenance notification, the control unit 41 ends the maintenance timing prediction process.

[0054] On the other hand, if step S103 is determined to be NO, in step S109, the control unit 41 determines whether or not a predetermined operation interval for storing operation status information has elapsed, based on the count value of the number of times the opening operation of the shutter unit 21 has been performed. If it is determined that the predetermined operation interval has elapsed (step S109: YES), the process proceeds to step S110. If it is determined that the predetermined operation interval has not elapsed (step S109: NO), the control unit 41 ends the process of predicting the current maintenance time.

[0055] In step S110, the control unit 41 accumulates and stores the operation status information received by the reception unit 411 from the operation status information acquisition unit 3 at that time in the memory unit 42 within the electric shutter device 1. After storing the operation status information, the process proceeds to step S105, and the above process is executed.

[0056] According to the maintenance timing prediction process by this maintenance timing prediction system 100, the memory unit 51 of the server device 5 can have a larger memory capacity than the memory unit 42 of the electric shutter device 1, so when the server device 5 is connected to the electric shutter device 1, it is possible to accumulate and store the operation status information acquired by the operation status information acquisition unit 3 one by one. This shortens the accumulation interval of the operation status information, improving the accuracy of prediction of the maintenance timing.

[0057] In this maintenance timing prediction system 100, the storage unit 51 of the server device 5 may store the operation state information for each predetermined operation interval of the shutter unit 21.

[0058] FIG. 10 shows an overview of a maintenance timing prediction system 200 including an electric shutter device 1A and a server device 5A. In this system 200, the electric shutter device 1A includes a reception unit 411 as shown in FIG. 11 but does not include the functional units of a prediction unit, a threshold generation unit, and a switching unit. Although not shown in FIG. 11, the electric shutter device 1A may include a memory unit 42. In contrast, as shown in FIG. 12, the server device 5A includes, in addition to a memory unit 51, the functional units of a prediction unit 52, a threshold generation unit 53, a switching unit 54, and a communication unit 55, as well as a control unit (not shown) that controls these functional units. The prediction unit 52, the threshold generation unit 53, the switching unit 54, and the communication unit 55 have the same functions as the prediction unit 412, the threshold generation unit 413, the switching unit 414, and the communication unit 43 configured in the control device 4 of the electric shutter device 1 shown in FIGS. 2 and 3 . Therefore, the above descriptions are used to cite these units, and their descriptions will be omitted here.

[0059] The processing operations performed when predicting the maintenance time in this maintenance time prediction system 200 will be described with reference to FIGS.

[0060] 13, in step S201, the control unit 41 receives, via the reception unit 411, the operation state information acquired by the operation state information acquisition unit 3 when the opening / closing operation of the shutter unit 21 is performed. Thereafter, the process proceeds to step S202.

[0061] In step S202, the control unit 41 determines whether or not the opening operation of the shutter unit 21 has been completed. If it is determined that the opening operation has been completed (step S202: YES), the process proceeds to step S203. If it is determined that the opening operation has not been completed (step S202: NO), the control unit 41 waits until the opening operation is completed.

[0062] In step S203, the control unit 41 controls the communication unit 43 to transmit the operating state information from the transmission unit 432 to the server device 5 every time the operating state information acquisition unit 3 acquires the operating state information.

[0063] 14, the server device 5A determines in step S203 whether or not it has received the operation status information transmitted from the electric shutter device 1A. If it determines that it has received the operation status information (step S301: YES), the process proceeds to step S302. If it determines that it has not received the operation status information (step S301: NO), the server device 5A waits until it receives the operation status information.

[0064] In step S302, the server device 5A accumulates and stores the operating status information transmitted from the electric shutter device 1A in the storage unit 51. Thereafter, the process proceeds to step S303.

[0065] In step S303, the server device 5A determines whether the prediction function is set to ON by the switching unit 54. If it is determined that the prediction function is set to ON (step S303: YES), the process proceeds to step S304. If it is determined that the prediction function is set to OFF (step S303: NO), the server device 5A ends the process of predicting the current maintenance time.

[0066] In step S303, the server device 5A starts the maintenance timing prediction process in the prediction unit 52. The specific prediction process is the same as that in FIG. 6, so a detailed description will be omitted. The prediction unit 52 executes the maintenance timing prediction process based on the operation status information transmitted from the control unit 41 of the electric shutter device 1A. Therefore, in this electric shutter device 1A, the transmission unit 432 in the communication unit 43 of the control unit 41 functions as an operation status information transmission unit that transmits the operation status information acquired by the operation status information acquisition unit 3 to the server device 5A, which predicts the maintenance timing based on the operation status information. After executing the maintenance timing prediction process, the process proceeds to step S305.

[0067] In step S305, the server device 5A determines whether or not it is time for maintenance based on the result of the prediction process. If it is determined that it is time for maintenance (step S305: YES), the process proceeds to step S306. If it is determined that it is not time for maintenance (step S305: NO), the server device 5A ends the process of predicting the maintenance time.

[0068] In step S306, the server device 5A controls the communication unit 55 to transmit a maintenance notification to the external terminal X. After transmitting the maintenance notification, the server device 5A ends the maintenance timing prediction process.

[0069] According to the maintenance timing prediction process performed by this maintenance timing prediction system 200, the operation status information acquired by the operation status information acquisition unit 3 can be accumulated and stored in the memory unit 51 of the server device 5A one by one. Since the accumulation interval of the operation status information is shortened, the accuracy of the maintenance timing prediction is improved. In addition, since there is no need for prediction processing on the electric shutter device 1A side, the configuration of the electric shutter device 1A can be simplified.

[0070] In this maintenance timing prediction system 200, the storage unit 51 of the server device 5A may store the operation state information for each predetermined operation interval of the shutter unit 21.

[0071] According to this embodiment, the following effects are achieved: The electric shutter device 1 of this embodiment includes a shutter unit 21 that is capable of opening and closing, a drive unit 23 that drives the shutter unit 21, an operation status information acquisition unit 3 that acquires operation status information during the opening and closing operation of the shutter unit 21, a memory unit 42 that accumulates and stores the operation status information acquired by the operation status information acquisition unit 3, and a prediction unit 412 that predicts the timing of maintenance from changes over time in the operation status information accumulated in the memory unit 42. This makes it possible to predict an appropriate maintenance timing based on deterioration of the electric shutter device 1 over time.

[0072] In this embodiment, a threshold generator 413 is provided to generate a maintenance determination threshold for determining the timing of maintenance based on a change over time in the operation status information after a predetermined period of opening and closing operations has been performed, by comparing the operation status information with the change over time. This makes it possible to set a maintenance determination threshold for predicting the appropriate timing of maintenance based on the deterioration over time of the electric shutter device 1.

[0073] In this embodiment, the prediction unit 412 updates the maintenance determination threshold after maintenance is performed, thereby making it possible to predict the maintenance timing using the new maintenance determination threshold after maintenance is performed.

[0074] In this embodiment, the prediction unit 412 stops predicting the timing of maintenance for a period after the maintenance is performed and before the maintenance determination threshold is updated, thereby making it possible to prevent unnecessary determination of the timing of maintenance.

[0075] In this embodiment, the storage unit 42 accumulates the operating state information at predetermined operating intervals of the shutter unit 21. This reduces the amount of data stored in the storage unit 42, thereby reducing the load on the storage unit 42.

[0076] In this embodiment, when the prediction unit 412 determines that it is time for maintenance, the transmission unit 432 is a determination result transmission unit that transmits the determination result to the external terminal X. This allows the user to be notified of the maintenance time, and the user can take appropriate measures to maintain the electric shutter device 1 in a timely manner.

[0077] In this embodiment, a switching unit 414 is provided to switch whether or not the maintenance timing prediction function by the prediction unit 412 is enabled. This allows the user to arbitrarily select the maintenance prediction process. Furthermore, it is possible to prevent unnecessary maintenance prediction processes from being executed during maintenance.

[0078] The electric shutter device 1 of this embodiment includes a shutter unit 21 that is capable of opening and closing, a drive unit 23 that drives the shutter unit 21, an operation status information acquisition unit 3 that acquires operation status information during the opening and closing operation of the shutter unit 21, and a transmission unit 432 that is an operation status information transmission unit that transmits the operation status information acquired and accumulated by the operation status information acquisition unit 3 to a server device 5 to predict the timing of maintenance from changes over time in the operation status information. This makes it possible to transmit to the server device 5 operation status information that enables the server device 5 to predict an appropriate timing for maintenance based on deterioration over time of the electric shutter device 1.

[0079] The server device 5A of this embodiment is connected to be able to communicate data with the electric shutter device 1A, which is equipped with an operation status information acquisition unit 3 that acquires operation status information during the opening and closing operation of the shutter unit 21 by the drive unit 23, and is equipped with a prediction unit 52 that predicts the timing of maintenance from changes over time in the operation status information transmitted and accumulated from the electric shutter device 1A. This enables the server device 5A to predict the appropriate timing of maintenance based on the deterioration over time of the electric shutter device 1A.

[0080] The maintenance timing prediction system 100, 200 for an electric shutter device of this embodiment includes an electric shutter device 1, 1A having a shutter unit 21 that can be opened and closed, a drive unit 23 that drives the shutter unit 21, and an operation status information acquisition unit 3 that acquires operation status information during the opening and closing operation of the shutter unit 21, a server device 5, 5A connected to the electric shutter device 1, 1A so as to be able to communicate data, a memory unit 42, 51 that is provided in at least one of the electric shutter device 1, 1A or the server device 5, 5A and that accumulates and stores the operation status information acquired by the operation status information acquisition unit 3, and a prediction unit 412, 52 that is provided in either the electric shutter device 1, 1A or the server device 5, 5A and that predicts the maintenance timing from changes over time in the operation status information accumulated in the memory unit 42, 51. This makes it possible to predict an appropriate maintenance timing based on deterioration over time of the electric shutter device 1, 1A. If the memory unit is a memory unit 51 provided in the server device 5, 5A, the operating status can be stored in the memory unit 51, so it is possible to store the operating status information each time it is acquired, and by shortening the accumulation period of the operating status information, the accuracy of predicting the maintenance timing is also improved.

[0081] The maintenance timing prediction system 200 for an electric shutter device of this embodiment includes an electric shutter device 1A having a shutter unit 21 that can be opened and closed, a drive unit 23 that drives the shutter unit 21, and an operation status information acquisition unit 3 that acquires operation status information during the opening and closing operations of the shutter unit 21, and a server device 5A connected to the electric shutter device 1A for data communication. The server device 5A includes a memory unit 51 that accumulates and stores the operation status information acquired by the operation status information acquisition unit 3, and a prediction unit 52 that predicts the maintenance timing based on changes over time in the operation status information accumulated in the memory unit 51. This makes it possible to predict an appropriate maintenance timing based on deterioration over time of the electric shutter device 1A. Because the operation status can be stored in the memory unit 51 of the server device 5A, it is also possible to store the operation status information each time it is acquired. This shortens the storage period for the operation status information, thereby improving the accuracy of the maintenance timing prediction. Furthermore, because the server device 5A has the maintenance timing prediction function, the configuration of the electric shutter device 1A is simplified.

[0082] The maintenance timing prediction system 100, 200 for an electric shutter device of this embodiment includes an electric shutter device 1, 1A having a shutter unit 21 that can be opened and closed, a drive unit 23 that drives the shutter unit 21, and an operation status information acquisition unit 3 that acquires operation status information during the opening and closing operation of the shutter unit 21, and a server device 5A connected to the electric shutter device 1, 1A so as to be able to communicate data with the electric shutter device 1, 1A. The electric shutter device 1, 1A has a transmitter 432 that is an operation status information transmitter that transmits the operation status information acquired by the operation status information acquisition unit 3 to the server device 5A, and the server device 5A has a prediction unit 52 that predicts the maintenance timing from changes over time in the operation status information transmitted and accumulated from the electric shutter device 1, 1A. This allows the server device 5A to predict an appropriate maintenance timing based on deterioration over time of the electric shutter device 1A.

[0083] The method for predicting the timing of maintenance for the electric shutter device 1, 1A of this embodiment acquires operating status information during the opening and closing operation of the shutter unit 21, which opens and closes when driven by the drive unit 23, accumulates and stores the acquired operating status information, and predicts the timing of maintenance from changes over time in the accumulated operating status information. This makes it possible to predict the appropriate timing of maintenance based on changes over time in the electric shutter device 1, 1A.

[0084] In this embodiment, a maintenance determination threshold is generated based on the change over time in the operation status information after a predetermined period of opening and closing operations has been performed, and is compared with the operation status information to determine when maintenance is required. This makes it possible to set a maintenance determination threshold for predicting an appropriate maintenance time based on the deterioration over time of the electric shutter device 1, 1A.

[0085] In this embodiment, the maintenance determination threshold is updated after maintenance is performed on the electric shutter device 1, 1A. This makes it possible to predict the time for maintenance after maintenance is performed using the new maintenance determination threshold.

[0086] In this embodiment, after maintenance of the electric shutter device 1, 1A is performed, prediction of the time for maintenance is stopped for a period until the maintenance determination threshold is updated. This makes it possible to prevent unnecessary determination of the time for maintenance.

[0087] In this embodiment, the operating state information is accumulated at predetermined operating intervals of the shutter unit 21. This reduces the amount of data stored in the storage units 42 and 51, thereby reducing the load on the storage units 42 and 51.

[0088] In this embodiment, when it is determined that it is time for maintenance, the determination result is transmitted to the external terminal X. This allows the user to be notified of the time for maintenance, and allows the user to take appropriate measures for maintenance of the electric shutter device 1 in a timely manner.

[0089] While the preferred embodiments of the present disclosure have been described above, the present disclosure is not limited to the above-described embodiments and can be modified as appropriate.

[0090] In the above embodiments, electric shutter devices 1 and 1A having an electric shutter 2 that can be opened and closed to shield an opening 12 formed in a wall 11 of a building 10, such as a window, a store or garage entrance, etc., have been exemplified as the electric opening / closing device, but the electric opening / closing device of the present disclosure may be any device that has an opening / closing body that electrically operates to open and close, and is not limited to such electric shutter devices 1 and 1A. The electric opening / closing device of the present disclosure may be, for example, an electric window device that electrically opens and closes a paper screen installed on a sliding window or a bay window, a device that electrically opens and closes a blind, shade, roller curtain, or awning installed on a window, or an electric door device that electrically opens and closes a door such as a front door.

[0091] The present disclosure includes an electric opening / closing device, a server device, a maintenance timing prediction system for an electric opening / closing device, and a maintenance timing prediction method for an electric opening / closing device, as described in the following aspects.

[0092] <Aspect 1> An electric opening / closing body device comprising: an opening / closing body that can be opened and closed; a drive unit that drives the opening / closing body; an operation status information acquisition unit that acquires operation status information during the opening and closing operation of the opening / closing body; a memory unit that accumulates and stores the operation status information acquired by the operation status information acquisition unit; and a prediction unit that predicts the timing of maintenance from changes over time in the operation status information accumulated in the memory unit.

[0093] <Aspect 2> The electric opening / closing body device according to aspect 1 further includes a threshold value generating unit that generates a threshold value for determining when maintenance is required based on changes in the operating status information over time after a predetermined period of opening and closing operations have been performed, by comparing the operating status information with the threshold value.

[0094] <Aspect 3> 3. The electric opening / closing body device according to aspect 2, wherein the prediction unit updates the threshold value after maintenance is performed.

[0095] <Aspect 4> 4. The electric opening-closing body device according to aspect 3, wherein the prediction unit stops predicting the timing of maintenance for a period after maintenance is performed and before the threshold value is updated.

[0096] <Aspect 5> 5. The electric opening-closing body device according to any one of aspects 1 to 4, wherein the storage unit accumulates the operation state information at predetermined intervals of operation of the opening-closing body.

[0097] <Aspect 6> 6. The electric opening / closing body device according to any one of aspects 1 to 5, further comprising a determination result transmitting unit that transmits a determination result to an external terminal when the predicting unit determines that it is time for maintenance.

[0098] <Aspect 7> 7. The electric opening-closing body device according to any one of aspects 1 to 6, further comprising a switching unit that switches between presence and absence of a function for the prediction unit to predict the maintenance time.

[0099] <Aspect 8> an opening / closing body that is capable of being opened and closed; a drive unit that drives the opening / closing body; an operation status information acquisition unit that acquires operation status information during the opening and closing operation of the opening and closing body; An electric opening / closing body device comprising: an operating status information transmitting unit that transmits the operating status information acquired and accumulated by the operating status information acquiring unit to a server device that predicts the timing of maintenance based on changes over time in the operating status information.

[0100] <Aspect 9> The electric opening / closing body device is connected so as to be capable of data communication with an operation status information acquisition unit that acquires operation status information during the opening / closing operation of the opening / closing body by the drive unit, a server device including a prediction unit that predicts a maintenance timing based on a change over time in the operational state information transmitted from the electric opening / closing body device and stored;

[0101] <Aspect 10> an opening / closing body that is capable of being opened and closed; a drive unit that drives the opening / closing body; an electric opening / closing body device having an operation state information acquisition unit that acquires operation state information during the opening / closing operation of the opening / closing body; a server device connected to the electric opening / closing body device so as to be able to communicate data with the electric opening / closing body device; a storage unit provided in at least one of the electric opening / closing body device and the server device, which accumulates and stores the operation status information acquired by the operation status information acquisition unit; A maintenance timing prediction system for an electric opening / closing device, comprising: a prediction unit provided in either the electric opening / closing device or the server device, which predicts the maintenance timing from changes over time in the operating status information stored in the memory unit.

[0102] <Aspect 11> A maintenance timing prediction system for an electric opening / closing body device comprising: an electric opening / closing body device having an opening / closing body that can be opened and closed, a drive unit that drives the opening / closing body, and an operation status information acquisition unit that acquires operation status information during the opening and closing operation of the opening / closing body; and a server device that is connected to the electric opening / closing body device so that data communication is possible, wherein the server device comprises a memory unit that accumulates and stores the operation status information acquired by the operation status information acquisition unit, and a prediction unit that predicts the maintenance timing from changes over time in the operation status information accumulated in the memory unit.

[0103] <Aspect 12> an opening / closing body that is capable of being opened and closed; a drive unit that drives the opening / closing body; an electric opening / closing body device having an operation status information acquisition unit that acquires operation status information during the opening / closing operation of the opening / closing body; a server device connected to the electric opening / closing body device so as to be able to communicate data with the electric opening / closing body device; the electric opening / closing body device has an operation status information transmitting unit that transmits the operation status information acquired by the operation status information acquiring unit to the server device, The server device is a maintenance timing prediction system for an electric opening / closing body device, and has a prediction unit that predicts the maintenance timing from changes over time in the operating status information transmitted from and accumulated by the electric opening / closing body device.

[0104] <Aspect 13> A method for predicting the timing of maintenance for an electric opening / closing body device, which acquires operating status information during the opening / closing operation of an opening / closing body that is opened and closed by driving a drive unit, accumulates and stores the acquired operating status information, and predicts the timing of maintenance from changes over time in the accumulated operating status information.

[0105] <Aspect 14> A method for predicting the timing of maintenance for an electric opening / closing device as described in aspect 13, which generates a threshold value for determining the timing of maintenance based on changes in the operating status information over time after performing opening and closing operations for a predetermined period of time and comparing the operating status information with the operating status information.

[0106] <Aspect 15> Aspect 15. The method for predicting a maintenance time for an electric opening-closing device according to aspect 14, wherein the threshold value is updated after maintenance of the electric opening-closing device is performed.

[0107] <Aspect 16> Aspect 16. The method for predicting a time for maintenance of an electric opening-closing body according to aspect 15, wherein prediction of the time for maintenance is stopped for a period after maintenance of the electric opening-closing body is performed and until the threshold value is updated.

[0108] <Aspect 17> 17. The method for predicting timing of maintenance of an electric opening-closing body device according to any one of aspects 13 to 16, wherein the operation state information is accumulated at predetermined intervals between operations of the opening-closing body.

[0109] <Aspect 18> 18. The method for predicting the time for maintenance of an electric opening-closing body device according to claim 13, wherein, when it is determined that it is time for maintenance, the determination result is transmitted to an external terminal. [Explanation of symbols]

[0110] 1, 1A Electric shutter device (electric opening / closing body device), 21 Shutter unit (opening / closing body), 23 Drive unit, 3 Operation status information acquisition unit, 42, 51 Memory unit, 432 Transmission unit (judgment result transmission unit, operation status information transmission unit), 5, 5A Server device, 52, 412 Prediction unit, 53, 413 Threshold value generation unit, 54, 414 Switching unit

Claims

1. an opening / closing body that is capable of being opened and closed; a drive unit that drives the opening / closing body; an operation status information acquisition unit that acquires operation status information during the opening and closing operation of the opening and closing body; a storage unit that accumulates and stores the operation status information acquired by the operation status information acquisition unit; a prediction unit that predicts a maintenance timing based on a change over time in the operating state information stored in the storage unit.

2. The electric opening / closing body device according to claim 1, further comprising a threshold value generating unit that generates a threshold value for determining when maintenance is required based on changes over time in the operating status information after a predetermined period of opening and closing operations has been performed, by comparing the operating status information with the threshold value.

3. The electric opening / closing body device according to claim 2 , wherein the prediction unit updates the threshold value after maintenance is performed.

4. The electric opening / closing body device according to claim 3 , wherein the prediction unit stops predicting the maintenance time for a period after the maintenance is performed and before the threshold value is updated.

5. The electric opening / closing body device according to any one of claims 1 to 4, wherein the storage unit accumulates the operation state information at predetermined operation intervals of the opening / closing body.

6. The electric opening / closing body device according to any one of claims 1 to 4, further comprising a judgment result transmission unit that transmits the judgment result to an external terminal when the prediction unit determines that it is time for maintenance.

7. The electric opening / closing body device according to any one of claims 1 to 4, further comprising a switching unit that switches between presence and absence of a function for predicting the maintenance time by the prediction unit.

8. an opening / closing body that is capable of being opened and closed; a drive unit that drives the opening / closing body; an operation status information acquisition unit that acquires operation status information during the opening and closing operation of the opening and closing body; An electric opening / closing body device comprising: an operating status information transmitting unit that transmits the operating status information acquired and accumulated by the operating status information acquiring unit to a server device that predicts the timing of maintenance based on changes over time in the operating status information.

9. The electric opening / closing body device is connected so as to be capable of data communication with an operation status information acquisition unit that acquires operation status information during the opening / closing operation of the opening / closing body by the drive unit, a server device including a prediction unit that predicts a maintenance timing based on a change over time in the operational state information transmitted from the electric opening / closing body device and stored;

10. an opening / closing body that is capable of being opened and closed; a drive unit that drives the opening / closing body; an electric opening / closing body device having an operation state information acquisition unit that acquires operation state information during the opening / closing operation of the opening / closing body; a server device connected to the electric opening / closing body device so as to be able to communicate data with the electric opening / closing body device; a storage unit provided in at least one of the electric opening / closing body device and the server device, which accumulates and stores the operation status information acquired by the operation status information acquisition unit; A maintenance timing prediction system for an electric opening / closing device, comprising: a prediction unit provided in either the electric opening / closing device or the server device, which predicts the maintenance timing from changes over time in the operating status information stored in the memory unit.

11. an opening / closing body that is capable of being opened and closed; a drive unit that drives the opening / closing body; an electric opening / closing body device having an operation state information acquisition unit that acquires operation state information during the opening / closing operation of the opening / closing body; a server device connected to the electric opening / closing body device so as to be able to communicate data with the electric opening / closing body device; The server device a storage unit that accumulates and stores the operation status information acquired by the operation status information acquisition unit; a prediction unit that predicts a maintenance timing based on a change over time in the operating state information stored in the storage unit.

12. an opening / closing body that is capable of being opened and closed; a drive unit that drives the opening / closing body; an electric opening / closing body device having an operation status information acquisition unit that acquires operation status information during the opening / closing operation of the opening / closing body; a server device connected to the electric opening / closing body device so as to be able to communicate data with the electric opening / closing body device; the electric opening / closing body device has an operation status information transmitting unit that transmits the operation status information acquired by the operation status information acquiring unit to the server device, The server device is a maintenance timing prediction system for an electric opening / closing body device, and has a prediction unit that predicts the maintenance timing from changes over time in the operating status information transmitted from and accumulated by the electric opening / closing body device.

13. Acquire operation state information during the opening and closing operation of the opening and closing body that is opened and closed by the drive unit; Accumulating and storing the acquired operating status information; A method for predicting the timing of maintenance for an electric opening / closing body device, which predicts the timing of maintenance from changes over time in the accumulated operating state information.

14. A maintenance timing prediction method for an electric opening / closing device as described in claim 13, wherein a threshold value is generated based on changes in the operating status information over time after a predetermined period of opening and closing operations, and is used to determine the timing of maintenance by comparing the operating status information.

15. The method for predicting a maintenance time for an electric opening-closing device according to claim 14, wherein the threshold value is updated after maintenance of the electric opening-closing device is performed.

16. The method for predicting a maintenance time for an electric opening-closing body device according to claim 15, wherein prediction of the maintenance time is stopped for a period after maintenance of the electric opening-closing body device is performed and until the threshold value is updated.

17. The method for predicting a maintenance time for an electric opening-closing body device according to any one of claims 13 to 16, wherein the operation state information is accumulated at predetermined intervals between operations of the opening-closing body.

18. The method for predicting the timing of maintenance of an electric opening / closing body device according to any one of claims 13 to 16, wherein, when it is determined that it is time for maintenance, the determination result is transmitted to an external terminal.

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