Status detection system

Abstract

The status detection system has a server and a device. The device has one or more internal devices, a control unit, a first storage unit, a determination unit, and a first communication unit. The first control unit obtains signal information from each internal device. The determination unit refers to the first database in the first storage unit and determines the status of the device based on the signal information. The first communication unit sends the determination result of the determination unit to the user's terminal device according to the instruction from the first control unit, and sends at least one of the determination result and the signal information to the server. The server stores a second database for determining the status of the device. The server determines the status of the device based on the determination result from the device and at least one of the signal information. When the device is in an abnormal state, the server notifies the maintenance personnel of the information based on the determination result. The server sends the data in the second database to the device, so that the device updates the first database.

Description

Technical Field

[0001] The present disclosure relates to a status detection system that detects the status of a device and notifies a user or maintenance personnel of the device of information indicating the status of the device. Background Art

[0002] Conventionally, there are known devices that perform self-diagnosis of failures or abnormalities in equipment such as cooling devices based on measurement data from various sensors installed in the equipment, and fault diagnosis systems including such devices (e.g., see Patent Document 1). The device transmits diagnostic information or abnormal measurement data to a remote monitoring computer or communication control terminal included in the fault diagnosis system.

[0003] Patent Document 1: Japanese Patent Application Laid-Open No. 2005-121248

[0004] According to the device described in Patent Document 1, maintenance personnel can identify the device's status based on diagnostic information received from the device. However, there are also cases where it is difficult to detect abnormalities or determine whether a fault has occurred solely through the device's self-diagnosis. Therefore, there is a concern that maintenance personnel may not be able to obtain accurate information about the device's status. In addition, in existing device self-diagnosis, there are cases where it can only determine whether the device has already failed. Therefore, there is a concern that even if the device has not failed, it will not be possible to obtain accurate information about when a failure will occur. Summary of the Invention

[0005] The present disclosure has been made to solve the above-mentioned problems, and an object of the present disclosure is to provide a status detection system capable of notifying users and maintenance personnel of equipment of information indicating a more accurate status of the equipment.

[0006] The status detection system involved in the present disclosure is a status detection system having one or more devices and a server used for maintenance and repair of the one or more devices, the above-mentioned device comprising: one or more internal devices, which are at least one of an actuator group including one or more actuators and a sensor group including one or more sensors; a first control unit, which controls the one or more internal devices and obtains signal information of any one of the signals for controlling each of the one or more internal devices and the signals from each of the one or more internal devices; a first storage unit, which stores a rewritable first database for determining the status of the above-mentioned device; a determination unit, which refers to the above-mentioned first database and uses the above-mentioned signal information to determine the status of the above-mentioned device; and a first communication unit, which communicates with a terminal device of a user of the above-mentioned device and the above-mentioned server, and the above-mentioned first control unit controls the above-mentioned first communication unit so as to send maintenance information including the determination result of the above-mentioned determination unit to the above-mentioned user. the terminal device of the user, and controls the above-mentioned first communication unit so as to send the judgment result and at least one of the above-mentioned signal information to the above-mentioned server, the above-mentioned server comprising: a second communication unit for receiving the above-mentioned judgment result and at least one of the above-mentioned signal information from the above-mentioned device; a second storage unit for storing a second database for judging the status of the above-mentioned device; a second control unit for judging the status of the above-mentioned device using the above-mentioned judgment result and at least one of the above-mentioned signal information received by the above-mentioned second communication unit; and a maintenance and repair assistance unit for notifying the maintenance personnel of the device of information based on the judgment result of the above-mentioned second control unit when the above-mentioned second control unit judges that the above-mentioned device is in an abnormal state requiring maintenance or repair, the above-mentioned second control unit controls the above-mentioned second communication unit so as to send the data in the above-mentioned second database to the above-mentioned device, and the above-mentioned judgment unit uses the data in the above-mentioned second database received from the above-mentioned server to generate or update the above-mentioned first database.

[0007] According to the status detection system disclosed herein, a device uses data from a second database on a server to optimize the first database used for determining the device's status. This allows the device to accurately determine its status and notify the user of accurate information about the device's status. Furthermore, the server determines the device's status based on at least one of the determination result and signal information received from the device, and notifies maintenance personnel of information based on the determination result. This allows the server to accurately notify maintenance personnel of the device's status. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a diagram illustrating the configuration of a state detection system according to the first embodiment.

[0009] Figure 2This is a flowchart showing an example of a state detection process related to a device in the first embodiment.

[0010] Figure 3 This is a flowchart showing an example of status detection processing involving the server in the first embodiment.

[0011] Figure 4 This is a diagram illustrating the results of determining the status of conventional equipment.

[0012] Figure 5 This is a diagram illustrating the determination results of the device status in the third embodiment.

[0013] Figure 6 This is a flowchart showing an example of a state detection process involving a device in the third embodiment.

[0014] Figure 7 This is a flowchart showing an example of status detection processing involving the server in Implementation 3.

[0015] Figure 8 This is a schematic diagram for explaining the determination process of the determination unit 104 according to the fifth embodiment.

[0016] Figure 9 This is a diagram showing an example of information recorded when an abnormal event occurs in an internal device.

[0017] Figure 10 This is a flowchart showing an example of abnormality frequency counting processing performed by the determination unit in the fifth embodiment. DETAILED DESCRIPTION

[0018] Hereinafter, the embodiment will be described based on the drawings. In the following drawings, the size relationship of each component may be different from the actual one.

[0019] Implementation method 1.

[0020] Figure 1 This is a diagram illustrating the structure of a state detection system according to Embodiment 1. The state detection system 1 includes one or more devices 10 and a server 11. The device 10 is, for example, an air conditioner. The device 10 includes an actuator group 100, a sensor group 101, a first communication unit 102, a first control unit 103, a determination unit 104, and a first storage unit 105. The actuator group 100 includes one or more actuators. An actuator converts electrical energy into physical energy, and is, for example, a pump, a compressor, or a motor. The sensor group 101 includes one or more sensors. A sensor is, for example, a thermometer, a hygrometer, or an infrared sensor. In addition, there are cases where actuators or sensors are described as internal devices below.

[0021] The first communication unit 102 is connected to a global network such as the Internet as a communication network based on a public line, and can realize communication between the device 10 and the server 11, and communication between the device 10 and the user's terminal device 2. Here, the user refers to the user of the device 10. The first communication unit 102 can be, for example, a gateway, or a component that performs protocol conversion and data packet transmission and reception between an indoor communication network and a communication network of a public line located outside the house. Alternatively, the first communication unit 102 can be, for example, a modem, or a component that performs modulation and demodulation between a transmission signal matched with a transmission path of a public line and a signal corresponding to a communication line within the home, or a component that converts a signal in a transmission medium such as an electric wire into a signal in a different type of transmission medium such as an optical line or a wireless line. In addition, the first communication unit 102 can also be a communication device that performs these processes as a network node.

[0022] The first control unit 103 controls the actuator group 100, the sensor group 101, and the first communication unit 102. The first control unit 103 outputs control signals to the actuator group 100 and the sensor group 101, controlling electrical signals such as voltage or current in the actuator group 100 and the sensor group 101. Furthermore, the first control unit 103 receives electrical signals from the actuator group 100 and the sensor group 101. The first control unit 103 may also receive control signals output to the actuator group 100 and the sensor group 101. In the following, the electrical signals and control signals received by the first control unit 103 may be referred to simply as "signals." Signal values ​​may be described as "signal values," and information representing signals may be described as "signal information."

[0023] The determination unit 104 determines the status of the device 10 based on the signal information. The status of the device 10 includes a state in which the device 10 is operating normally and a state in which an abnormality exists. A normal operating state refers to a state in which the device 10 is operating without any problems. An abnormal state refers to a state in which, even if the device 10 has not failed, there are signs of a failure, or a state in which a failure has occurred. In the following, a state in which the device 10 is operating normally may be described as a normal state or a normal state. Alternatively, a state in which an abnormality exists may be described as an abnormal state.

[0024] Hereinafter, the process of determining the status of the device 10 by the determination unit 104 may be described as diagnostic processing. The determination unit 104 uses the first database stored in the first storage unit 105 during the diagnostic processing. The first database includes information related to failures of the device 10 and information related to the status of the device 10, and is a collection of information necessary for determining the status of the device 10. The determination unit 104 generates and updates the first database as needed. Furthermore, as described later, the first database is generated and updated using data from the second database received from the server 11.

[0025] The first communication unit 102 transmits diagnostic information indicating the determination result of the determination unit 104, signal information, and data in the first database to the server 11 in accordance with instructions from the first control unit 103. Furthermore, the first communication unit 102 transmits maintenance information including diagnostic information to the user's terminal device 2 in accordance with instructions from the first control unit 103. The maintenance information may indicate the need for maintenance, the urgency of the maintenance, and the time required for maintenance.

[0026] The server 11 is a device that assists maintenance personnel in their work. The server 11 includes a second communication unit 110, a second control unit 111, a second storage unit 112, and a maintenance and repair assistance unit 113. The second communication unit 110 is connected to a global network such as the Internet, and can realize communication between the server 11 and the device 10. The second communication unit 110 can be a gateway or a modem, etc., similar to the first communication unit 102. The second communication unit 110 can perform protocol conversion between different communication networks, can realize data packet communication between different communication networks, can also modulate and demodulate signals in different lines, and can also convert signals in different types of transmission media. In addition, the second communication unit 110 can be a component that performs these processes.

[0027] The second control unit 111 controls the second communication unit 110 and the maintenance and repair support unit 113. When the second communication unit 110 receives signal information, diagnostic information, and data from the first database from the device 10, the second control unit 111 causes the second storage unit 112 to accumulate and store this information. Furthermore, the second control unit 111 causes the second storage unit 112 to accumulate and store information related to the actual results of maintenance and repairs input by maintenance personnel. In the following, information related to the actual results of maintenance and repairs input by maintenance personnel may be recorded as maintenance and repair actual results information. In the second storage unit 112, diagnostic information, signal information, and data from the first database obtained from the device 10 are aggregated with the maintenance and repair actual results information and stored in the second database. The second control unit 111 appropriately constructs and updates the second database based on the signal information and maintenance and repair actual results information from the device 10. Furthermore, in addition to information from the device 10, the first database in the second database may also be modified based on information input to the server 11.

[0028] The second control unit 111 refers to the second database and determines the state of the device 10 based on the signal information or the diagnostic information.

[0029] The maintenance and repair support unit 113 obtains maintenance and repair performance information from maintenance personnel. Furthermore, the maintenance and repair support unit 113 references the second database and, based on the determination result of the second control unit 111, estimates the details of the maintenance or repair work required for the equipment 10. Furthermore, the maintenance and repair support unit 113 estimates the number of working days required for the maintenance or repair. The maintenance and repair support unit 113 notifies the maintenance personnel of the work details, the number of working days, and the determination result of the second control unit 111.

[0030] Furthermore, the second control unit 111 in the first embodiment transmits the data in the second database to the device 10. The device 10 uses the data in the second database received from the server 11 to update the first database stored in the first storage unit 105, or to generate the first database if the first database does not exist in the first storage unit 105.

[0031] The second control unit 111 can control the second communication unit 110 to transmit maintenance information indicating the status of the device 10 to the user's terminal device 2. In this case, the maintenance information includes not only the diagnostic information but also information indicating the determination result of the second control unit 111.

[0032] The following describes the hardware configurations of the device 10 and the server 11. The functions of the device 10 can be implemented, for example, by a configuration including a processor such as a CPU (Central Processing Unit) or an MPU (Micro Processing Unit), memory such as a ROM (Read Only Memory) or a RAM (Random Access Memory), a storage device such as an HDD (Hard Disk Drive), a communication interface circuit, and control circuits such as a drive circuit. The functions associated with the first control unit 103 and the determination unit 104 can be implemented by the processor reading and executing various programs stored in the memory. Specifically, the control function of the actuator group 100 and the sensor group 101 associated with the first control unit 103 can be implemented by the processor reading control programs stored in the memory and performing processing corresponding to the control programs on the actuator group 100 and the sensor group 101 via the control circuit. The functions of the first communication unit 102 can be implemented by the aforementioned communication interface circuit. The functions of the first storage unit 105 can be implemented by the storage device or the memory. Furthermore, all or part of the functions of the device 10 can be implemented by dedicated hardware.

[0033] The functions of the server 11 can be implemented, for example, by a processor such as a CPU or MPU, memory such as ROM or RAM, a communication interface circuit, a storage device such as an HDD, a display device such as a liquid crystal display or CRT (Cathode Ray Tube), and an input device such as a keyboard, mouse, or touch panel. Among the functions of the maintenance and repair support unit 113, the function of accepting maintenance and repair results information from maintenance personnel can be implemented via this input device. Furthermore, the function of the maintenance and repair support unit 113 of notifying maintenance personnel of work details and work days can be implemented via this display device. However, these functions of the maintenance and repair support unit 113 can also be implemented via the communication interface circuit. In this case, maintenance and repair results information can be sent from the maintenance personnel's terminal device to the server 11, and work details and work days can be sent from the server 11 to the terminal device. The functions of the second control unit 111 and the maintenance and repair support unit 113's function of estimating work details and work days can be implemented by the processor reading and executing various programs stored in the memory. The functions of the second communication unit 110 can be implemented using the communication interface circuit. The functions of the second storage unit 112 can be implemented by memory or a storage device. All or part of the functions of the server 11 may also be implemented by dedicated hardware.

[0034] Hereinafter, the state detection process in the state detection system 1 according to the first embodiment will be described. Figure 2This is a flowchart showing an example of a state detection process related to a device in the first embodiment. Figure 3 This is a flowchart showing an example of the state detection processing involved in the server in Implementation 1. Figure 2 In step S1, the first control unit 103 controls the actuator group 100 and the sensor group 101 and obtains signal values. In step S2, the determination unit 104 refers to the first database and determines whether the device 10 is in an abnormal state based on the signal values.

[0035] When the device 10 is not in an abnormal state (step S2: No), in step S3, the first control unit 103 controls the first communication unit 102 to transmit diagnostic information indicating that the device 10 is in a normal state to the server 11. In step S3, the first control unit 103 may also control the first communication unit 102 to transmit signal information together with the diagnostic information to the server 11, or may control the first communication unit 102 to transmit data in the first database to the server 11. In addition, the first control unit 103 controls the first communication unit 102 to transmit maintenance information including the diagnostic information to the user's terminal device 2. The first communication unit 102 transmits the diagnostic information to the server 11 in accordance with the instruction from the first control unit 103. After transmitting the maintenance information to the terminal device 2, the device 10 ends the state detection process.

[0036] If the determination unit 104 determines in step S2 that the device 10 is in an abnormal state (step S2: Yes), in step S4, the first control unit 103 controls the first communication unit 102 to transmit diagnostic information indicating that the device 10 is in an abnormal state to the server 11. The first control unit 103 may also control the first communication unit 102 to transmit signal information along with the diagnostic information to the server 11, or may control the first communication unit 102 to transmit data in the first database to the server 11. Furthermore, the first control unit 103 controls the first communication unit 102 to transmit maintenance information including the diagnostic information to the user's terminal device 2. However, if the device 10 is in a normal state, the transmission of such maintenance information to the terminal device 2 may be omitted, for example, to reduce communication traffic.

[0037] Furthermore, when the determination unit 104 determines in step S2 that the device 10 has an abnormality, the determination unit 104 may infer the extent of the abnormality in the device 10 before processing in step S4. For example, the determination unit 104 may extract, based on the signal values, internal devices in the actuator group 100 and the sensor group 101 that have failed, or internal devices that have not failed but are not functioning normally, and analyze the extent of the abnormality and the content of the abnormality in the extracted internal devices. Furthermore, the determination unit 104 may infer the situation caused by the abnormality in the internal devices. Furthermore, in step S4, the first control unit 103 may control the first communication unit 102 to transmit the internal devices extracted by the determination unit 104, the extent of the abnormality in the internal devices, the content of the abnormality, etc., along with the diagnostic information, to the server 11.

[0038] In step S4 , the first communication unit 102 transmits the diagnostic information to the server 11 according to the instruction from the first control unit 103 , and after transmitting the maintenance information to the terminal device 2 , the device 10 ends the status detection process.

[0039] In the above example of the status detection process involving the device 10 , the device 10 transmits diagnostic information to the server 11 in steps S3 and S4 . However, the device 10 may transmit signal information to the server 11 instead of diagnostic information.

[0040] exist Figure 3 In step S10, the second control unit 111 of the server 11 determines whether the second communication unit 110 has received diagnostic information or signal information from the device 10. If the second communication unit 110 has not received diagnostic information or signal information from the device 10 (step S10: No), the server 11 stops processing at step S10. If the second communication unit 110 has received diagnostic information or signal information from the device 10 (step S10: Yes), in step S11, the second control unit 111 determines whether the device 10 is in an abnormal state based on the diagnostic information or signal information. Furthermore, if the information received by the second communication unit 110 in step S10 is diagnostic information, in step S11, the second control unit 111 refers to the diagnostic information to determine the status of the device 10. In this case, the second control unit 111 may also refer to the second database. If the information received by the second communication unit 110 in step S10 is signal information, in step S11, the second control unit 111 refers to the second database and determines the status of the device 10 based on the signal information.

[0041] When it is determined in step S11 that the device 10 is not in an abnormal state (step S11: No), the server 11 ends the processing. When it is determined in step S11 that the device 10 has failed or there is an abnormality in the device 10 (step S11: Yes), in step S12, the maintenance and repair assistance unit 113 infers the required maintenance or repair work content based on the state of the device 10 and the degree of the failure. In addition, the maintenance and repair assistance unit 113 infers the number of working days required for maintenance or repair. In step S13, the maintenance and repair assistance unit 113 notifies the maintenance personnel of the work content and working days inferred in step S12 and the determination result of the second control unit 111 in step S11. After the processing of step S13, the server 11 ends the status detection processing.

[0042] In addition, when the second communication unit 110 receives diagnostic information and signal information in step S10 (step S10: yes), in step S11, the second control unit 111 can refer to the second database and use the signal information to determine the status of the device 10. Moreover, the second control unit 111 can compare the determination result with the diagnostic information. If the comparison result is inconsistent, the second control unit 111 can send the data in the second database to the device 10. Moreover, the device 10 can update the first database based on the received data. It should be noted that, in addition to this, the first database can be updated periodically or at specific times.

[0043] The effects of the status detection system 1 according to Embodiment 1 are described below. The status detection system 1 includes one or more devices 10 and a server 11 used for maintenance and repair of the one or more devices 10. The device 10 includes one or more internal devices, a first control unit 103, a first storage unit 105, a determination unit 104, and a first communication unit 102. The one or more internal devices are at least one of an actuator group 100 including one or more actuators and a sensor group 101 including one or more sensors. The first control unit 103 controls the one or more internal devices and obtains signal information for controlling each of the one or more internal devices and for signals from each of the one or more internal devices. The first storage unit 105 stores a rewritable first database for determining the status of the device 10. The determination unit 104 refers to the first database and uses the signal information to determine the status of the device 10. The first communication unit 102 communicates with the terminal device 2 of the user of the device 10 and the server 11. The first control unit 103 controls the first communication unit 102 to transmit maintenance information including the determination result of the determination unit 104 to the user's terminal device 2, and also controls the first communication unit 102 to transmit the determination result and at least one of the signal information to the server 11. The server 11 includes a second communication unit 110, a second storage unit 112, a second control unit 111, and a maintenance and repair support unit 113. The second communication unit 110 receives at least one of the determination result and the signal information from the device 10. The second storage unit 112 stores a second database for determining the status of the device 10. The second control unit 111 uses at least one of the determination result and the signal information received by the second communication unit 110 to determine the status of the device. If the second control unit 111 determines that the device 10 is in an abnormal state requiring maintenance or repair, the maintenance and repair support unit 113 notifies the maintenance personnel of the device 10 of information based on the determination result of the second control unit 111. The second control unit 111 controls the second communication unit 110 so as to transmit the data in the second database to the device 10. The determination unit 104 uses the data in the second database received from the server 11 to update the first database.

[0044] According to embodiment 1, since the device 10 uses the data in the second database from the server 11 to optimize the first database referenced in determining the status of the device 10, the device 10 can accurately determine the status of the device 10. Moreover, the device 10 can notify the user of the accurate determination result via the first communication unit 102. As a result, the user of the device 10 can accurately and quickly know the status of the device 10 and can make a judgment on whether maintenance is necessary. In addition, the server 11 uses at least one of the determination result and signal information received from the device 10 to determine the status of the device 10. In the case where it is determined that the device 10 is in an abnormal state, the server 11 notifies the maintenance personnel of the information based on the determination result. As a result, the maintenance personnel of the device 10 can accurately and quickly know the status of the device 10 and can appropriately make a judgment on the content of maintenance.

[0045] Furthermore, since the server 11 does not transmit maintenance information to the terminal device 2 and the device 10 transmits the maintenance information to the user's terminal device 2 , the communication volume in the server 11 is reduced, and the communication processing load of the server 11 can be reduced.

[0046] The maintenance and repair assisting unit 113 in the first embodiment infers the content of the maintenance or repair work for the device 10 and the number of working days required for the maintenance or repair based on the determination result of the second control unit 111. Furthermore, the maintenance and repair assisting unit 113 notifies the maintenance personnel of the content of the work, the number of working days, and the determination result of the second control unit 111. Since the maintenance and repair assisting unit 113 infers the content of the work and the number of working days based on the accurate determination result of the second control unit 111 regarding the status of the device 10, the maintenance personnel can obtain accurate information regarding the maintenance and repair of the device 10. Thus, the maintenance personnel can suppress sudden failures of the device 10 before they occur and can perform appropriate operations. In addition, the maintenance personnel can perform decentralized processing of the operations and can quickly procure the required parts. Therefore, the maintenance operation can be made more efficient.

[0047] The second database in Embodiment 1 includes maintenance and repair performance information, which indicates the actual performance of maintenance or repairs performed by maintenance personnel. The maintenance and repair support unit 113 references the second database to infer the work content and work days. This provides feedback on the maintenance personnel's actual performance during the inference of work content and work days, allowing the maintenance and repair support unit 113 to infer appropriate and efficient work content and appropriate work days.

[0048] When the determination unit 104 determines that the device 10 is in an abnormal state requiring maintenance or repair, the first control unit 103 in Embodiment 1 controls the first communication unit 102 to transmit maintenance information to the user's terminal device 2. Thus, when the device 10 is in a normal state, maintenance information is not transmitted or received between the device 10 and the terminal device 2, thereby reducing communication traffic.

[0049] Implementation method 2.

[0050] The device 10 in the first embodiment performs diagnostic processing by referring to the first database stored in the first storage unit 105. The device 10 in the second embodiment improves the accuracy of fault or abnormality detection during diagnostic processing by improving the accuracy of the first database. The following describes the state detection system 1 according to the second embodiment. Components identical to those in the first embodiment and having identical functions are denoted by the same reference numerals as those in the first embodiment. Components, functions, and operations identical to those in the first embodiment will be omitted unless otherwise noted.

[0051] In Embodiment 2, the server 11 transmits device information including at least one of the following information: the model, year of manufacture, environmental conditions, and operating mode of the device 10. The information indicating the environmental conditions indicates environmental conditions such as the temperature and humidity at the location where the device 10 is installed. The information indicating the operating mode indicates the operating mode of the device 10. For example, if the device 10 is a heating device, this information indicates heating operation. It may also indicate the type of control, such as inverter control.

[0052] Device information is pre-stored in the second storage unit 112. Alternatively, the device information may be included in the second database. Device information may be transmitted each time it is updated, periodically, or upon receipt of a request from the server 11 from the device 10. The second communication unit 110 transmits the device information to the device 10 in response to an instruction from the second control unit 111. Upon receiving the device information, the first control unit 103 of the device 10 causes the first storage unit 105 to store the device information.

[0053] Here, there is also the possibility that data related to other devices 10 are included in the first database because the first database in the first storage unit 105 is updated by data received from the server 11. The device 10 in embodiment 2 can extract information required for the diagnostic process from the first database by referring to the device information. The required information is information related to the device 10, for example, information related to a device 10 that is the same or similar in model to the device 10 and operates in the same or similar manner to the device 10. In addition, the information related to the device 10 can also be information related to a device 10 that has the same or similar environmental conditions. In this way, during the diagnostic process, the device 10 excludes data related to other devices 10 that are not similar to itself in the first database of the reference object. As a result, the device 10 can quickly and efficiently detect the status of the device 10 using only information related to the device 10.

[0054] Furthermore, the first control unit 103 or the determination unit 104 may update the first database using the device information received from the server 11 , delete information related to other devices 10 , and leave only information necessary for determining the status of the device 10 .

[0055] Furthermore, in Embodiment 2, the second control unit 111 can control the second communication unit 110 to transmit maintenance information including device information to the terminal device 2. If this maintenance information includes information indicating the model of the device 10, the user who receives this maintenance information can inform the maintenance personnel of the model, thereby facilitating maintenance requests. Furthermore, if this maintenance information includes the year of manufacture, the maintenance personnel who have received the maintenance request from the user can determine the degree of deterioration or wear of the device 10 based on the year of manufacture, thereby facilitating maintenance work.

[0056] The following describes the effects of the status detection system 1 involved in embodiment 2. The second storage unit 112 in embodiment 2 stores device information, which includes information indicating at least one of the model, manufacturing year, environmental conditions, and operating mode of the device 10. The second control unit 111 controls the second communication unit 110 so as to send the device information to the device 10. When the device information is received from the server 11, the determination unit 104 uses the device information to determine the status of the device 10. Therefore, even if the first storage unit 105 includes information related to other devices 10, the device 10 can extract only the information related to the device 10, and can use the extracted information to quickly and efficiently detect the status of the device 10.

[0057] In Embodiment 2, the first control unit 103 controls the first communication unit 102 to transmit maintenance information including device information to the user's terminal device 2. Thus, when a user requests maintenance, the user notifies the maintenance personnel of the device information, allowing the maintenance personnel to quickly and efficiently retrieve information about the device 10 and make a quick decision.

[0058] Implementation method 3.

[0059] The device 10 in the above-mentioned embodiments 1 and 2 determines whether the device 10 is normal or in a fault state or an abnormal state based on signal information. The device 10 in the embodiment 3 classifies the state of the device 10 in more detail. In addition, the device 10 provides the user with a judgment criterion such as the urgency of maintenance and the period when maintenance is required. Moreover, the server 11 can notify the maintenance personnel of more detailed work content and work days based on the diagnostic information obtained from the device 10. The following is an explanation of the state detection system 1 involved in the embodiment 3. Among them, the same figure mark as the figure mark in the embodiment 1 and 2 is marked for the structure with the same function in the components that are the same as the components in the above-mentioned embodiments 1 and 2. In addition, the description of the components, functions and actions that are the same as those in the above-mentioned embodiments 1 and 2 will be omitted unless otherwise stated.

[0060] In the third embodiment, the state of the device 10 is divided into multiple levels. In the third embodiment, the state of the device 10 is divided into five levels. 5, which is the number of levels, is an example, and may be 3, 4, or 6 or more. In the embodiment, level 0 refers to a good state, and level 1 refers to a normal state. In addition, level 2 refers to an unsatisfactory state, and level 3 refers to a mild fault state. In addition, level 4 refers to a severe fault state. Here, a good state refers to, for example, a state in which the device 10 is the same as a new one, and an unsatisfactory state refers to a state in which the device 10 has not failed but signs of a fault can be seen. Furthermore, a mild fault state refers to a state in which the device 10 can be operated although some functions are restricted. In addition, a severe fault state refers to a state in which a fatal problem has occurred in the device 10, for example, a state in which the device 10 malfunctions, does not perform the action desired by the user, or does not operate.

[0061] The status of each internal device may be classified into multiple levels, similar to the status of the equipment 10. For example, the status of each internal device may include a good state, a normal state, an unsatisfactory state, a minor fault state, and a major fault state.

[0062] The first database in the first storage unit 105 includes information such as thresholds indicating the range of signal values ​​corresponding to the various states of each internal device. For example, the first database includes the upper and lower limits of the signal values ​​when each internal device is in a normal state. Furthermore, the first database includes at least one of the upper and lower limits of the signal values ​​when each internal device is in a good state. The determination unit 104 determines the state of the device 10 based on the signal values ​​of each internal device obtained by the first control unit 103. Here, each signal value may be obtained over a certain period of time or at a specific time.

[0063] In addition to the status of each internal device indicated by the signal value, the determination unit 104 also uses the number of internal devices in the actuator group 100 and the sensor group 101 in a normal state or a faulty state as a criterion for determining the status of the device 10. Furthermore, the determination unit 104 can determine the level of each internal device's status based on the signal value of each internal device, and use the status of each internal device as a criterion for determining the status of the device 10.

[0064] Next, a specific example of the determination result of the determination unit 104 will be described in comparison with the conventional case. Figure 4 This is a diagram illustrating the results of determining the status of conventional equipment. Figure 5 This is a diagram illustrating the determination results of the device status in the third embodiment. Figure 4 as well as Figure 5 The current and voltage values ​​of actuator A, actuator B, sensor A, and sensor B at time i are shown in FIG. Figure 4 as well as Figure 5 In , i is represented by a natural number from 1 to 3. For example, the current value of actuator A at time 1 is 0.52 [A].

[0065] like Figure 4 As shown, in the conventional case, whether actuator A, actuator B, sensor A, or sensor B is in a normal state or a faulty state is determined based on the obtained current value and voltage value. Figure 4 In the example, actuator A is determined to be in a normal state. Similarly, actuator B is determined to be in a normal state. Furthermore, sensor A is determined to be in a normal state. Furthermore, sensor B is determined to be in a faulty state.

[0066] The database referred to in the determination of the state of the existing equipment defines the state of the equipment according to whether each internal device is in a normal state or a faulty state. Moreover, in the existing database, only the normal state or the faulty state is defined as the state of the equipment. Figure 4As shown, since the states of actuator A, actuator B, sensor A, and sensor B are normal, normal, normal, and faulty, it is determined based on the database that the device is in a faulty state.

[0067] like Figure 5 As shown, in the third embodiment, it is determined which state of levels 0 to 4 the actuator A, actuator B, sensor A, and sensor B are in based on the obtained current value and voltage value. Figure 5 In the embodiment 3, actuator A is determined to be in a good state at level 0, actuator B is determined to be in an unsmooth state at level 2, sensor A is determined to be in a normal state at level 1, and sensor B is determined to be in a severe fault state at level 4. In the first database of embodiment 3, the state of the device 10 is defined in units of levels according to the level of the state of each internal device. In the first database, as the state of the device 10, the states at each level 0 to 4 are defined as described above. Figure 5 The first database in defines a level 3 mild fault state as the state of the device 10 when actuator A is in a good state, actuator B is in an unsmooth state, sensor A is in a normal state, and sensor B is in a severe fault state. Figure 5 As shown, in the third embodiment, the state of the device 10 can be determined in more detail than in the conventional case.

[0068] The first control unit 103 controls the first communication unit 102 so as to send maintenance information indicating the status of the device 10 determined by the determination unit 104 to the user's terminal device 2. The maintenance information indicates the status of the device 10 at any one of the five levels mentioned above. The user can respond to the status of the device 10 more flexibly based on the maintenance information. For example, the user can easily determine whether maintenance is necessary based on the status of the device 10 indicated by the maintenance information, and can entrust the maintenance personnel as needed. In addition, the user can estimate in advance the period when maintenance is required. Therefore, the user can maintain the required functions of the device 10 and entrust the maintenance at the required period, and entrust the maintenance at the appropriate time, so that unforeseen events can be suppressed in advance. Therefore, the period during which the device 10 does not perform the action desired by the user can be minimized.

[0069] First control unit 103 controls first communication unit 102 to transmit the level of the device 10 status determined by determination unit 104 and diagnostic information indicating at least one of the statuses of device 10 at that level to server 11. Furthermore, second storage unit 112 of server 11 in Embodiment 3 associates and stores each level with information indicating the status of device 10 indicated by that level. Second control unit 111 of server 11 determines the status of device 10 based on the diagnostic information or signal information.

[0070] Furthermore, when the second control unit 111 uses the signal information to determine the state of the device 10, the second database, like the first database, includes at least one of the upper limit and lower limit of the signal value of each internal device in each state of the device 10. Furthermore, the second control unit 111 refers to the second database and performs the same determination process as the determination process of the determination unit 104. In this case, Figure 5 The first database shown is replaced by the second database.

[0071] The maintenance and repair support unit 113 estimates the content or number of days of maintenance or repair work based on the state of the device 10 determined by the second control unit 111, and notifies the maintenance personnel.

[0072] Below, refer to Figure 6 as well as Figure 7 , the process of processing involved in the status detection system involved in implementation mode 3 is explained. Figure 6 This is a flowchart showing an example of a state detection process involving a device in the third embodiment. Figure 7 This is a flowchart showing an example of the state detection processing involved in the server in Implementation 3. Figure 6In step S20, the first control unit 103 controls the actuator group 100 and the sensor group 101 and obtains the signal value. In step S21, the determination unit 104 refers to the first database and uses the signal value to determine the level of the device 10. At this time, the status of each internal device is determined to be one of the five levels mentioned above based on the range of the signal value of each internal device, and the level of the device 10 is determined based on the status of each internal device. Through the determination process in step S21, the determination unit 104 performs any one of steps S22 to S26. In step S22, the determination unit 22 determines that the device 10 is in a good state of level 0. In step S23, the determination unit 22 determines that the device 10 is in a normal state of level 1. In step S24, the determination unit 22 determines that the device 10 is in an unsatisfactory state of level 2. In step S25, the determination unit 22 determines that the device 10 is in a mild fault state of level 3. In step S26 , the determination unit 22 determines that the device 10 is in a severe failure state of level 4 .

[0073] Following the processing of steps S22 to S26, in step S27, the first control unit 103 controls the first communication unit 102 to transmit diagnostic information including the determination result of the determination unit 104 to the server 11. At this time, the first control unit 103 may control the first communication unit 102 to transmit signal information along with the diagnostic information to the server 11, or may control the first communication unit 102 to transmit data from the first database to the server 11. Furthermore, in step S27, the first control unit 103 controls the first communication unit 102 to transmit maintenance information including the diagnostic information to the user's terminal device 2. Furthermore, the first control unit 103 may control the first communication unit 102 to transmit maintenance information to the terminal device 2 only when the device 10 is in any of the states from Level 2 to Level 4. After the processing of step S27, the device 10 ends the status detection process.

[0074] exist Figure 7In step S30, the second control unit 111 of the server 11 determines whether the second communication unit 110 has received diagnostic information or signal information from the device 10. If the second communication unit 110 has not received diagnostic information or signal information from the device 10 (step S30: No), the server 11 stops processing at step S30. If the second communication unit 110 has received diagnostic information or signal information from the device 10 (step S30: Yes), in step S31, the second control unit 111 uses the diagnostic information or signal information to determine the current state of the device 10. Furthermore, if the information received by the second communication unit 110 in step S30 is diagnostic information, in step S31, the second control unit 111 uses the diagnostic information to determine the current state of the device 10. If the information received by the second communication unit 110 in step S30 is signal information, in step S31, the second control unit 111 refers to the second database and determines the current state of the device 10 based on the signal information.

[0075] Based on the determination in step S31, the second control unit 111 performs one of the determinations in steps S32 to S36. In step S32, the second control unit 111 determines that the device 10 is in a faulty state at level 2. In step S33, the second control unit 111 determines that the device 10 is in a mild fault state at level 3. In step S34, the second control unit 111 determines that the device 10 is in a severe fault state at level 4. In step S35, the second control unit 111 determines that the device 10 is in a good state at level 0. In step S36, the second control unit 111 determines that the device 10 is in a normal state at level 1.

[0076] Following step S32, in step S37, the maintenance and repair support unit 113 estimates the details of the maintenance work for the equipment 10. Furthermore, the maintenance and repair support unit 113 estimates the number of working days required for the maintenance work. Following the processing in step S33 and step S3, in step S37, the maintenance and repair support unit 113 estimates the details of the repair work for the equipment 10. Furthermore, the maintenance and repair support unit 113 estimates the number of working days required for the repair work.

[0077] Following step S37, the maintenance and repair support unit 113 notifies the maintenance personnel of the work details and work days estimated in step S37 and the result of the determination process in step S31. After the processes in steps S35, S36, and S38, the server 11 ends the process.

[0078] In addition, when the second communication unit 110 receives diagnostic information and signal information in step S30 (step S30: Yes), in step S31, the second control unit 111 can refer to the second database and use the signal information to determine the status of the device 10. Moreover, the second control unit 111 can compare the determination result with the diagnostic information. If the comparison result is inconsistent, the second control unit 111 can send the data in the second database to the device 10. Moreover, the device 10 can update the first database based on the received data. In addition, the first database can be updated regularly or at specific times.

[0079] The following describes the effects of the status detection system 1 in Embodiment 3. The determination unit 104 in Embodiment 3 determines the status of the device 10 as one of a plurality of states, including a good state, a normal state, a faulty state, a minor fault state, and a major fault state, based on signal information from one or more internal devices. This allows for detailed determination of the status of the device 10. By obtaining maintenance information including this determination result, the user can accurately determine whether maintenance is necessary. Furthermore, if maintenance is necessary, the user can easily estimate the time of maintenance. Furthermore, by requesting maintenance at the appropriate time, the period during which the device 10 does not perform the desired action can be minimized. Furthermore, by obtaining the determination result of the second control unit 111 and the diagnostic result of the maintenance and repair assistance unit 113 via the maintenance and repair assistance unit 113, maintenance personnel can quickly and easily identify the details of the status of the device 10. Furthermore, the maintenance and repair support unit 113 uses the detailed determination result regarding the state of the equipment 10 to estimate the work content and work days, thereby facilitating optimization of the maintenance or repair work performed by the maintenance personnel.

[0080] When the second communication unit 110 receives signal information from each of more than one internal devices, the second control unit 111 in embodiment 3 determines the state of the device 10 as any one of a plurality of states including a good state, a normal state, an unsatisfactory state, a mild fault state, and a severe fault state based on the signal information from each of the more than one internal devices. In this way, the state of the device 10 can be determined in detail. By obtaining the determination result of the second control unit 111 and the inference result of the maintenance and repair assistance unit 113 through the maintenance and repair assistance unit 113, the maintenance personnel can quickly and easily identify the details of the state of the device 10. In addition, the maintenance and repair assistance unit 113 makes it easier to optimize the maintenance or repair work performed by the maintenance personnel by using the detailed determination result on the state of the device 10 to infer the work content and the number of work days.

[0081] Implementation method 4.

[0082] In the above-mentioned embodiments 1 to 3, as a notification process for the maintenance personnel regarding the work content and work days involved in the maintenance and repair auxiliary unit 113, a notification process based on a screen display is shown as an example. The maintenance and repair auxiliary unit 113 in the fourth embodiment has a communication interface circuit that can communicate with the terminal device of the maintenance personnel, and sends the inferred work content and work days and the judgment result of the second control unit 111 to the terminal device of the maintenance personnel. The following is an explanation of the state detection system 1 involved in the fourth embodiment. Among them, the same reference numerals as the reference numerals in the figures in the first to third embodiments are marked for the same components and functions as the components in the first to third embodiments. In addition, the description of the components, functions and actions that are the same as those in the first to third embodiments is omitted unless otherwise stated.

[0083] Furthermore, in addition to the maintenance and repair support unit 113 having a communication interface circuit, the second control unit 111 can transmit the determination result and the estimation result of the maintenance and repair support unit 113 to the terminal device of the maintenance personnel via the second communication unit 110 .

[0084] Since the process flow involved in the device 10 in the fourth embodiment is the same as Figure 2 or Figure 6 The process shown in FIG4 is the same, so the description is omitted. Except for the following differences, the process of the server 11 in the fourth embodiment is the same as that in FIG4. Figure 3 or Figure 7 The process shown is the same. Only the differences are described below.

[0085] As the notification process in step S13 or step S38 , the maintenance and repair support unit 113 in the fourth embodiment transmits the work details and the work days to the terminal device of the maintenance person.

[0086] The following describes the effects of the status detection system 1 according to the fourth embodiment. The maintenance and repair auxiliary unit 113 in the fourth embodiment sends information indicating the determination result of the second control unit 111 and information indicating the inferred work content and work days to the terminal device of the maintenance personnel according to the instruction of the second control unit 111. Thus, even if the maintenance personnel are not on the server 11 side, they can receive notifications about information indicating that the device 10 is in an abnormal state, information indicating the work content and work days for maintenance or repair of the device 10. Therefore, the maintenance personnel's work can be made more efficient, and the period during which the device 10 is inoperative can be shortened. In addition, the maintenance personnel can notify the user of this information obtained through the maintenance and repair auxiliary unit 113, and can propose repair work or replacement parts as needed.

[0087] Implementation method 5.

[0088] The state detection system 1 according to the fifth embodiment can adjust the signal processing load according to the computing power of the device 10. In other words, in the state detection system 1, even if an IC (Integrated Circuit) with low computing power is used in the first control unit 103, the determination unit 104, and the second control unit 111, the state detection system 1 can accurately determine the state of the device 10. The state detection system 1 according to the fifth embodiment is described below. Among them, the same reference numerals as those in the figures in the first to fourth embodiments are used to mark the same components and functions as those in the first to fourth embodiments. In addition, the description of the components, functions, and actions that are the same as those in the first to fourth embodiments will be omitted unless otherwise stated.

[0089] Figure 8 This is a schematic diagram for explaining the determination process of the determination unit 104 according to the fifth embodiment. The determination unit 104 determines the signal value x obtained from each internal device in step S40 as needed. k Perform signal processing. Among them, the signal value x k For example, the voltage value V k Or the current value I k . Index k is a natural number from 1 to n. In addition, n is a natural number. Signal processing includes, for example, addition and subtraction operations, multiplication and division operations, frequency characteristic calculations, or gradient calculations of each signal value, but is not limited to these. Frequency characteristic calculation refers to the process of calculating the frequency characteristics of a signal, for example, by FFT (Fast Fourier Transform). In addition, gradient calculation refers to the process of calculating the gradient of each signal value in the sample time. Among them, Figure 8 α in k and y k is the signal value x k The intermediate value in signal processing.

[0090] In step S41, the determination unit 104 determines the value X calculated by signal processing. k The value x is compared with a predetermined threshold value to determine whether there is an abnormality in the internal device. Hereinafter, the value calculated by the above signal processing is recorded as a calculated value. In addition, if the determination unit 104 does not perform the processing of step S40, in step S41, the determination unit 104 can use the signal value x to determine whether there is an abnormality in the internal device. k Instead of calculating the value X k .

[0091] In step S41, the determination unit 104 calculates the calculated value X during a predetermined first time. k The relationship between the value of X and the threshold value satisfies certain conditions. k When the magnitude relationship with the threshold satisfies a specific condition, the calculated value X k Less than the threshold or greater than the threshold. For example, Figure 8 In the calculation of the value X k If the internal device is not in the normal range P but in the abnormal range Q, a specific condition is satisfied. The determination unit 104 counts the number of times it determines that the internal device is abnormal during the first period and records the counted number in the determination unit 104 or the first storage unit 105 .

[0092] The determination unit 104 determines the calculated value X during the first time. k The processing combination of n times to determine whether the magnitude relationship with the threshold satisfies a specific condition is executed. For example, the determination unit 104 executes the determination processing in n first times in parallel. In addition, there is also the following method of determining the calculated value X k The process of determining whether the magnitude relationship with the threshold satisfies a specific condition is described as abnormality detection processing. k If the magnitude relationship with the threshold value satisfies a specific condition, the determination unit 104 determines that an abnormality has occurred in the internal device. In addition, the process of counting the number of times an abnormality has occurred in the internal device during the first period of time may be described as abnormality count processing.

[0093] Figure 9 This diagram shows an example of information recorded when an abnormal event occurs in an internal device. This information may also be recorded as abnormality count information. Here, the abnormality count process is performed n times. Each abnormality count process is labeled with an index k. Figure 9 The horizontal axis of the coordinate graph shown represents the index k, and the vertical axis represents the number of events that are judged to have occurred abnormally in the first time. For example, with respect to sensor A, in the abnormality count processing with index k being 2, the number of events that are counted as having occurred abnormally is the largest. With respect to sensor B, as the value of index k becomes larger, the number of times that it is counted as having occurred abnormally becomes smaller. In this way, the presence or absence of a fault can be inferred based on the distribution of the number of occurrences of abnormal events in the first time for each index k as shown in the abnormality number information, and the prediction of a fault can be achieved based on the transition of the distribution of the number of occurrences of abnormal events. The determination unit 104 uses Figure 9 The illustrated data is used to determine the status of the device 10 including the internal devices.

[0094] Below, refer to Figure 10The abnormality count process in the fifth embodiment will be described. Figure 10 This is a flowchart showing an example of abnormality count processing involved in the determination unit in the fifth embodiment. Figure 2 In the process shown, the process of step S1 is replaced by Figure 10 In addition, in the fifth embodiment, Figure 2 In step S2, the signal information is replaced with the abnormality number information. The determination unit 104 in the fifth embodiment can Figure 6 In the process shown, the process of step S20 is replaced by Figure 10 In addition, in the fifth embodiment, Figure 6 In step S21, the signal information is replaced with the abnormality count information. In step S21, the determination unit 104 determines the state of the device 10 using the abnormality count information of each internal device.

[0095] exist Figure 10 In step S50 shown in FIG. 1 , the determination unit 104 obtains the signal value x from the internal device. k In step 51, the determination unit 104 performs a reference Figure 8 The signal processing in step S41 described above is performed. If the signal processing is not necessary, the processing in step S51 can be skipped. In step S52, the determination unit 104 determines whether the calculated value X k Or the signal value x k Whether the magnitude relationship with the threshold satisfies a specific condition. If this magnitude relationship satisfies the specific condition, the determination unit 104 determines that an abnormal event has occurred in the internal device. If the determination unit 104 determines in step S52 that an abnormal event has occurred (step S52: Yes), in step S53, the determination unit 104 counts the number of times the abnormal event has occurred. If the determination unit 104 determines in step S52 that no abnormal event has occurred (step S52: No), the determination unit 104 moves the process to step S54. After step S53, the determination unit 104 moves the process to step S54.

[0096] In step S54, the determination unit 104 determines whether the first time has passed since the start of the abnormality count process. If the first time has not passed (step S54: No), the determination unit 104 returns the process to step S50. If the first time has passed (step S54: Yes), the determination unit 104 moves the process to step S50. Figure 2 Step S2 shown or Figure 6The process of steps S50 to S54 is performed n times in parallel. After the process of steps S50 to S54 is performed n times for each of the internal devices, the determination unit 104 executes the process of step S2 or step S21.

[0097] The above is the determination of the determination unit 104. Figure 9 as well as Figure 10 The processing shown in FIG1 is described, but these processes can also be executed by the server 11 that receives the signal value from the device 10. In this case, the second control unit 111 of the server 11 replaces Figure 3 The processing in step S10 or the processing in step S31 is performed Figure 10 In this case, the signal information in step S11 or step S31 is replaced with the abnormality number information.

[0098] In addition, the device 10 and the server 11 can also perform Figure 9 as well as Figure 10 In this case, the second control unit 111 may compare the result of the determination process in step S11 or S31 following step S54 with the diagnostic information from the device 10. If the comparison result is inconsistent, the second control unit 111 may send the data in the second database to the device 10. Furthermore, the device 10 may update the first database based on the received data. In addition, the first database may be updated periodically or at specific times.

[0099] The following describes the effects of the state detection system 1 in the fifth embodiment. The determination unit 104 in the fifth embodiment determines the signal value x of each of one or more internal devices. k Or the calculated value X obtained by signal processing the signal value k The number of times the magnitude relationship with the threshold value satisfies a specific relationship during the first time period is counted, and the device status is determined using the counted number. This allows the signal processing load to be adjusted according to the computing power of the device 10. Therefore, even if the computing power of the IC in the determination unit 104 is low, it is still possible to determine that the device 10 is in an abnormal state.

[0100] Description of reference numerals:

[0101] 1…status detection system; 2…terminal device; 10…equipment; 11…server; 100…actuator group; 101…sensor group; 102…first communication unit; 103…first control unit; 104…judgment unit; 105…first storage unit; 110…second communication unit; 111…second control unit; 112…second storage unit; 113…maintenance and repair assistance unit.

Claims

1. A status detection system comprising one or more devices and a server used for maintenance and repair of the one or more devices, wherein: The device has: One or more internal devices are at least one of an actuator group including one or more actuators and a sensor group including one or more sensors; a first control unit configured to control the one or more internal devices and obtain signal information of any one of signals for controlling each of the one or more internal devices and signals from each of the one or more internal devices; a first storage unit storing a rewritable first database for determining the state of the device; a determination unit that refers to the first database and uses the signal information to determine a state of the device; as well as a first communication unit for communicating with a terminal device of a user of the device and the server; The first control unit controls the first communication unit so as to transmit maintenance information including a determination result of the determination unit to the terminal device of the user, and controls the first communication unit so as to transmit at least one of the determination result and the signal information to the server. The server has: a second communication unit configured to receive at least one of the determination result and the signal information from the device; a second storage unit storing a second database for determining the state of the device; a second control unit that determines a state of the device using at least one of the determination result and the signal information received by the second communication unit; as well as a maintenance and repair assisting unit that, when the second control unit determines that the equipment is in an abnormal state requiring maintenance or repair, notifies a maintenance person of the equipment of information based on the determination result of the second control unit; The second control unit controls the second communication unit so as to transmit the data in the second database to the device. The determination unit generates or updates the first database using the data in the second database received from the server. The maintenance and repair assistance unit infers the work content of the maintenance or repair of the equipment and the number of working days required for the maintenance or repair based on the judgment result of the second control unit, and notifies the maintenance personnel of the work content, the number of working days and the judgment result of the second control unit.

2. The state detection system according to claim 1, characterized in that: The second database includes maintenance and repair actual result information, which indicates the actual results of maintenance or repair performed by the maintenance personnel. The maintenance and repair support unit refers to the second database to estimate the work content and the work days.

3. A status detection system comprising one or more devices and a server used for maintenance and repair of the one or more devices, wherein: The device has: One or more internal devices are at least one of an actuator group including one or more actuators and a sensor group including one or more sensors; a first control unit configured to control the one or more internal devices and obtain signal information of any one of signals for controlling each of the one or more internal devices and signals from each of the one or more internal devices; a first storage unit storing a rewritable first database for determining the state of the device; a determination unit that refers to the first database and uses the signal information to determine a state of the device; as well as a first communication unit for communicating with a terminal device of a user of the device and the server; The first control unit controls the first communication unit so as to transmit maintenance information including a determination result of the determination unit to the terminal device of the user, and controls the first communication unit so as to transmit at least one of the determination result and the signal information to the server. The server has: a second communication unit configured to receive at least one of the determination result and the signal information from the device; a second storage unit storing a second database for determining the state of the device; a second control unit that determines a state of the device using at least one of the determination result and the signal information received by the second communication unit; as well as a maintenance and repair assisting unit that, when the second control unit determines that the equipment is in an abnormal state requiring maintenance or repair, notifies a maintenance person of the equipment of information based on the determination result of the second control unit; The second control unit controls the second communication unit so as to transmit the data in the second database to the device. The determination unit generates or updates the first database using the data in the second database received from the server. The second storage unit stores device information including information indicating at least one of a model, a manufacturing year, an environmental condition, and an operating mode of the device. The second control unit controls the second communication unit so as to transmit the device information to the device. When the device information is received from the server, the determination unit determines the status of the device using the device information.

4. The state detection system according to claim 3, characterized in that: The first control unit controls the first communication unit so as to transmit the maintenance information including the device information to the terminal device of the user.

5. The state detection system according to any one of claims 1 to 4, characterized in that: The determination unit determines the state of the equipment as any one of a plurality of states including a good state, a normal state, a bad state, a minor fault state, and a major fault state based on the signal information of each of the one or more internal devices.

6. A status detection system comprising one or more devices and a server used for maintenance and repair of the one or more devices, wherein: The device has: One or more internal devices are at least one of an actuator group including one or more actuators and a sensor group including one or more sensors; a first control unit configured to control the one or more internal devices and obtain signal information of any one of signals for controlling each of the one or more internal devices and signals from each of the one or more internal devices; a first storage unit storing a rewritable first database for determining the state of the device; a determination unit that refers to the first database and uses the signal information to determine a state of the device; as well as a first communication unit for communicating with a terminal device of a user of the device and the server; The first control unit controls the first communication unit so as to transmit maintenance information including a determination result of the determination unit to the terminal device of the user, and controls the first communication unit so as to transmit at least one of the determination result and the signal information to the server. The server has: a second communication unit configured to receive at least one of the determination result and the signal information from the device; a second storage unit storing a second database for determining the state of the device; a second control unit that determines a state of the device using at least one of the determination result and the signal information received by the second communication unit; as well as a maintenance and repair assisting unit that, when the second control unit determines that the equipment is in an abnormal state requiring maintenance or repair, notifies a maintenance person of the equipment of information based on the determination result of the second control unit; The second control unit controls the second communication unit so as to transmit the data in the second database to the device. The determination unit generates or updates the first database using the data in the second database received from the server. The determination unit determines the state of the equipment as any one of a plurality of states including a good state, a normal state, a bad state, a minor fault state, and a major fault state based on the signal information of each of the one or more internal devices.

7. The state detection system according to any one of claims 1 to 4 and 6, characterized in that: When the determination unit determines that the device is in the abnormal state, the first control unit controls the first communication unit so as to transmit the maintenance information to the terminal device of the user.

8. The state detection system according to any one of claims 1 to 4 and 6, characterized in that: When the second communication unit receives the signal information of each of the one or more internal devices, the second control unit determines the state of the device as any one of a plurality of states including a good state, a normal state, an unsmooth state, a mild fault state and a severe fault state based on the signal information of each of the one or more internal devices.

9. The state detection system according to any one of claims 1 to 4 and 6, characterized in that: The maintenance and repair support unit transmits information based on the determination result of the second control unit to the terminal device of the maintenance worker in accordance with the instruction of the second control unit.

10. The state detection system according to any one of claims 1 to 4 and 6, characterized in that: The determination unit counts the number of times that the value of the signal of each of the one or more internal devices or the calculated value obtained by signal processing the signal value satisfies a specific relationship with the threshold value during the first time, and uses the count result to determine the status of the device.

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