Monitoring device, monitoring system, and monitoring method

Abstract

A monitoring device according to the present invention comprises a collection unit, an abnormality detection unit, a storage unit, and an abnormality notification unit. The collection unit collects operation information indicating the operation state of an apparatus. The abnormality detection unit detects an abnormality level of the apparatus on the basis of the operation information. The storage unit stores information indicating a notification level, which is an abnormality level of the apparatus set for a notification device that provides notification of the state of the apparatus. If the abnormality level detected by the abnormality detection unit is equivalent to the notification level, the abnormality notification unit transmits, to the notification device, abnormality information instructing that notification be given regarding an abnormality of the apparatus.

Description

[Technical field]

[0001] The present disclosure relates to a monitoring device, a monitoring system, and a monitoring method for reporting an abnormality in equipment. [Background technology]

[0002] In recent years, the Internet of Things (IoT) has been adopted for various devices, such as air conditioners, making it possible to collect data on the operating status of multiple devices and manage them remotely. In addition, technology has been established that can detect changes in the degree of abnormality in devices in stages. This makes it possible to detect the status of devices in real time, which was previously difficult, and allows for more detailed maintenance.

[0003] Specifically, the remote monitoring device detects the current abnormality level of each device based on data on the current operating status of each device. The abnormality level refers to the degree of abnormality indicated in stages. The monitoring device notifies the detection result to the notification target of the device status, such as the user of each device or the manager of the building in which each device is installed. This enables the notification target to quickly understand the device status and take appropriate measures. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2003-256036 A Summary of the Invention [Problem to be solved by the invention]

[0005] Here, the abnormality level desired for notification may differ depending on each notification target. For example, some notification targets desire notification before a breakdown occurs and desire treatment at an early stage, while other notification targets desire to take measures when the equipment breaks down. Then, by performing notifications at all abnormality levels, some notification targets may receive unnecessary notifications, which may result in burdening the notification targets. Also, if a notification target who desires notification at a mid-stage of the progression of an abnormality receives a notification from the initial abnormality stage, the notification target may determine that measures are not yet necessary and postpone the measures. Then, even if the notification target receives a notification at a mid-stage of the progression of the abnormality that the notification target desires to be notified of, the notification target may mistakenly believe that measures can be postponed, and the notification content at the mid-stage of the progression of the abnormality may be overlooked, and the abnormality may progress further, requiring unplanned measures.

[0006] The present disclosure has been made to solve the above-mentioned problems, and aims to provide a monitoring device, a monitoring system, and a monitoring method that enable notifications to be sent to targets at appropriate times. [Means for solving the problem]

[0007] A monitoring device according to the present disclosure is a monitoring device that monitors the state of an appliance, and includes a collection unit that collects operation information indicating the operation state of the appliance from the appliance, an abnormality detection unit that detects an abnormality level of the appliance based on the operation information collected from the appliance, a storage unit that stores information indicating an alarm level that is an abnormality level of the appliance set for an alarm device that notifies the state of the appliance, and an abnormality notification unit that, when the abnormality level detected by the abnormality detection unit is equal to the alarm level, transmits abnormality information to the alarm device instructing the alarm device to notify of an abnormality in the appliance. a progression speed calculation unit that calculates a progression speed of the abnormality of the device and determines whether the calculated progression speed is greater than a predetermined reference progression speed; Equipped with The abnormality notification unit transmits, when transmitting the abnormality information, progress speed information to the notification device instructing the notification device to notify the result of the determination made by the progress speed calculation unit. It is something.

[0008] A monitoring system according to the present disclosure is a monitoring system having an appliance, an alarm device that notifies the state of the appliance, and a monitoring device that monitors the state of the appliance, wherein the monitoring device includes a collection unit that collects operation information indicating the operation state of the appliance from the appliance, an abnormality detection unit that detects an abnormality level of the appliance based on the operation information collected from the appliance, a storage unit that stores information indicating an alarm level that is the abnormality level of the appliance set for the alarm device, and an abnormality notification unit that, when the abnormality level detected by the abnormality detection unit is equal to the alarm level, transmits abnormality information to the alarm device instructing the alarm device to notify of an abnormality in the appliance. a progression speed calculation unit that calculates a progression speed of the abnormality of the device and determines whether the calculated progression speed is greater than a predetermined reference progression speed; Equipped with the abnormality notification unit transmits, when transmitting the abnormality information, to the notification device, travel speed information instructing the notification device to notify a result of the determination made by the travel speed calculation unit; When the notification device receives the abnormality information, the notification device notifies the abnormality of the device based on the abnormality information. When the travel speed information is received, the result of the determination by the travel speed calculation unit is notified. This is what we do.

[0009] A monitoring method according to the present disclosure is a monitoring method executed by a monitoring device that monitors a state of an appliance, and includes a collection step of collecting operation information indicating an operation state of the appliance from the appliance, and an abnormality detection step of detecting an abnormality level of the appliance based on the operation information collected from the appliance, wherein the monitoring device stores information indicating an alarm level, which is an abnormality level of the appliance set for an alarm device that notifies the state of the appliance, and the monitoring method includes an abnormality notification step of transmitting, when the abnormality level detected in the abnormality detection step is equal to the alarm level, to the alarm device an abnormality information instructing the alarm device to notify of an abnormality in the appliance. a progression speed calculation step of calculating a progression speed of the abnormality of the device and determining whether the calculated progression speed is greater than a predetermined reference progression speed; Including The abnormality notification step includes a step of transmitting, to the notification device, travel speed information instructing the notification device to notify a result of the determination in the travel speed calculation step when transmitting the abnormality information. This is something that should be done. Effect of the Invention

[0010] According to the monitoring device, monitoring system, and monitoring method of the present disclosure, when the abnormality level of the detected device is equal to the notification level, the monitoring device transmits abnormality information to the notification device instructing the notification device to notify the device of the abnormality of the device. The notification level is an abnormality level set for the notification device that notifies the device of the state of the device. By notifying the device of the abnormality of the device based on the abnormality information received, it becomes possible to notify the device at an appropriate timing according to the maintenance plan for the device of the person to be notified. [Brief description of the drawings]

[0011] [Figure 1] 1 is a schematic diagram illustrating a configuration of a monitoring system according to a first embodiment. [Diagram 2] 1 is a block diagram illustrating a configuration of a monitoring device according to a first embodiment. [Diagram 3] FIG. 4 is a diagram illustrating reference operation information in the first embodiment. [Figure 4] FIG. 2 is a diagram for explaining an abnormality level of a device in the first embodiment. [Diagram 5] FIG. 4 is a diagram illustrating an example of notification level information in the first embodiment. [Figure 6] 3 is a schematic diagram illustrating an example of the contents of notification by the notification device in the first embodiment. FIG. [Figure 7] 4 is a diagram illustrating graphs of a reference progress speed stored in a storage unit and a progress speed calculated by a progress speed calculation unit in the first embodiment. FIG. [Figure 8] 2 is a schematic diagram illustrating a hardware configuration of a monitoring device according to the first embodiment; FIG. [Figure 9] 4 is a flowchart illustrating a flow of a monitoring process performed by the monitoring system according to the first embodiment. [Figure 10] FIG. 11 is a diagram showing a display example in a sub-area on a screen of an alarm device in the second embodiment. [Figure 11] 10 is a flowchart illustrating a monitoring process by the monitoring system according to the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] A monitoring device, a monitoring system, and a monitoring method according to embodiments will be described in detail below with reference to the drawings.

[0013] Embodiment 1 1 is a schematic diagram illustrating a configuration of a monitoring system according to embodiment 1. The monitoring system 100 includes a monitoring device 1, a plurality of devices 2, and a plurality of alarm devices 3. The monitoring device 1 is a device for remotely monitoring the operating states of the plurality of devices 2.

[0014] The device 2 is, for example, an air conditioner, a refrigeration device, a cooling device, a heating device, or an air purifier. The device 2 communicates with the monitoring device 1 by wire or wirelessly, and transmits operation information indicating the operation state of the device 2 to the monitoring device 1. In the following, in the first embodiment, a case where the device 2 is an air conditioner will be described as an example. The operation information in the first embodiment is information including the power consumption [kW] of a compressor included in the air conditioner, the rotation speed [rpm] of the compressor, the temperature [°C] and the degree of superheat [K] of the refrigerant discharged from the compressor, and the temperature [°C] and the degree of superheat [K] of the refrigerant sucked into the compressor. The transmission of the operation information from the device 2 may be performed automatically or based on an instruction from the monitoring device 1. The transmission of the operation information from the device 2 may be performed periodically or at random timing.

[0015] Each of the notification devices 3 is for notifying a notification target of the state of each of the devices 2 of the state of each of the devices 2. The notification target of the state of each of the devices 2 refers to both or either of the user of each device 2 and the manager of the building in which each of the devices 2 is installed. The notification device 3 is, for example, a remote controller for remotely operating the device 2, and is capable of communicating with the monitoring device 1 by wire or wirelessly. The remote controller includes a display device or a sound output device that enables notification. The remote controller may communicate with the monitoring device 1 via the device 2 main body. Alternatively, the device 2 may communicate with the monitoring device 1 by the remote controller, and the monitoring device 1 may receive operation information from the remote controller. The notification device 3 may be a display device or a sound output device provided on the main body of the device 2. The notification device 3 may be a communication device such as a smartphone, a PC (Personal Computer), or a tablet terminal owned by the notification target. The communication device communicates with the monitoring device 1 by wire or wirelessly.

[0016] The monitoring device 1 collects operation information from each of the multiple devices 2, and detects an abnormality in each of the multiple devices 2 based on the collected operation information. When the monitoring device 1 detects an abnormality in each device 2, it transmits abnormality information to each notification device 3 that notifies the status of each device 2, instructing the notification device 3 to notify the abnormality in each device 2. When each notification device 3 receives the abnormality information, it notifies the abnormality in each device 2.

[0017] 2 is a block diagram illustrating a configuration of a monitoring device according to embodiment 1. The monitoring device 1 includes a collection unit 10, an abnormality detection unit 11, a storage unit 12, an abnormality notification unit 13, and a progress speed calculation unit 14. The collection unit 10 collects operation information from each of a plurality of devices 2.

[0018] The abnormality detection unit 11 detects the degree of abnormality occurring in each device 2 based on the operation information collected by the collection unit 10 from each device 2. In the first embodiment, the degree of abnormality of the device 2 is indicated by a graded numerical value, and the degree of abnormality indicated by the graded numerical value may be referred to as an abnormality level. In the first embodiment, the higher the numerical value of the abnormality level, the higher the degree of abnormality. Also, the abnormality level is represented by an integer from 0 to M, where M is a natural number. A state in which the abnormality level is 0 is a state in which the device 2 is not abnormal. The abnormality detection unit 11 detects the abnormality level of each device 2 by comparing the collected operation information with reference operation information described later.

[0019] The storage unit 12 stores reference operation information. The reference operation information includes the values ​​of each parameter of each device 2 in a state where no abnormality occurs in each device 2, that is, in a state where each device 2 operates normally. The reference operation information may be predetermined, or may be obtained using operation information collected from each device 2 within a predetermined time period during which each device 2 is assumed to operate normally after being installed. In the following, a state where the device operates normally may be referred to as a normal state or a normal state. In the following, a state where an abnormality occurs may be referred to as an abnormal state or an abnormal state.

[0020] FIG. 3 is a diagram illustrating the reference operation information in the first embodiment. The reference operation information shown in FIG. 3 is for a case where the monitoring system 100 includes P devices 2. The reference operation information shown in FIG. 3 is an example for a case where each device 2 is an air conditioner. The reference operation information shown in FIG. 3 includes the values ​​of each parameter, namely, the power consumption [kW] of the compressor, the rotation speed [rpm] of the compressor, the temperature [°C] and the degree of superheat [K] of the refrigerant discharged from the compressor, and the temperature [°C] and the degree of superheat [K] of the refrigerant sucked into the compressor, in a case where each device 2 is in a normal state, in association with each other. Hereinafter, the parameter values ​​may be referred to as parameter values. In addition, the power consumption of the compressor may be referred to as power consumption, the rotation speed of the compressor may be referred to as rotation speed, the temperature of the refrigerant discharged from the compressor may be referred to as discharge temperature, and the degree of superheat of the refrigerant discharged from the compressor may be referred to as discharge superheat. In addition, the temperature of the refrigerant sucked into the compressor may be referred to as suction temperature, and the degree of superheat of the refrigerant sucked into the compressor may be referred to as suction superheat.

[0021] The reference operation information includes each parameter value when the device 2 is in a normal state, associated with the device identification information that identifies the device 2. Specifically, the reference operation information includes each parameter value when the device 2 is in a normal state, for each piece of device identification information. As shown in FIG. 3, when the device 2 with the device identification information "Y1" is in a normal state, if the compressor operates at a rotation speed of 15 [rpm], the power consumption of the compressor is 1.0 [kW], and the temperature of the refrigerant discharged from the compressor is 70 [°C]. Also, when the device 2 is in a normal state and the compressor operates at a rotation speed of 15 [rpm], the degree of superheat of the refrigerant discharged from the compressor is 15 [K], the temperature of the refrigerant sucked into the compressor is 5 [°C], and the degree of superheat of the refrigerant sucked into the compressor is 10 [K].

[0022] Returning to FIG. 2, the abnormality detection unit 11 calculates the degree of deviation of each parameter value indicated by the operation information from each parameter value indicated by the reference operation information. In this case, the abnormality detection unit 11 calculates the degree of deviation of each parameter value indicated by the operation information from each device 2 from each parameter value associated with the device identification information of each device 2 in the reference operation information. Hereinafter, the degree of deviation may be referred to as the deviation degree. Specifically, the abnormality detection unit 11 calculates how much the power consumption of the compressor in the operation information collected from each device 2 deviates from the power consumption of the compressor associated with the device identification information of each device 2 in the reference operation information. In this case, the abnormality detection unit 11 calculates, for example, the degree of deviation of the power consumption indicated by the operation information from the rotation speed included in the operation information or the rotation speed closest to the rotation speed included in the operation information and the power consumption associated in the reference operation information.

[0023] The degree of deviation is obtained from the ratio of each parameter value indicated by the operating information to each parameter value indicated by the reference operating information. Alternatively, the degree of deviation may be obtained from the difference between each parameter value indicated by the operating information and each parameter value indicated by the reference operating information.

[0024] The storage unit 12 stores the abnormality detection information. The abnormality detection information is information that associates the degree of deviation of the parameter value with an abnormality level, and is determined in advance. The greater the degree of deviation, the greater the numerical value of the abnormality level associated with the abnormality detection information.

[0025] The abnormality detection unit 11 detects the abnormality level of each device 2 by referring to the abnormality detection information and extracting an abnormality level associated with the degree of deviation of each parameter indicated by the operation information from each device 2. For example, the abnormality detection unit 11 detects a larger numerical abnormality level as the degree of deviation of the power consumption indicated by the operation information from the power consumption indicated by the reference operation information increases.

[0026] Fig. 4 is a diagram for explaining the abnormality levels of the devices in the embodiment 1. Fig. 4 illustrates the state of the compressor as an example of the state of the device 2. The compressor experiences wear on the bearings and shaft due to aging deterioration and the like, and eventually becomes unable to operate due to the shaft sticking to the bearings and the like.

[0027] The power consumption increases as the deterioration of the compressor progresses. When the rotation speed is constant, the ratio of the power consumption indicated by the operation information to the power consumption indicated by the reference operation information increases as the deterioration of the device 2 progresses. In the example shown in FIG. 4, the bearing is assumed to be damaged before the shaft, and the damaged state of the bearing is assumed to have predetermined stages of an initial stage, a middle stage, and a final stage. As shown in FIG. 4, the ratio of the power consumption when the device 2 is in a normal state to the power consumption in the reference operation information is 100[%]. As shown in FIG. 4, as the damage of the bearing progresses, the ratio of the power consumption of the compressor to the power consumption in the reference operation information increases. And as the damage of the shaft progresses, the ratio becomes even larger. In FIG. 4, the abnormality level corresponding to the ratio is indicated by an integer from 0 to 5. As the deterioration of the compressor progresses and the abnormality level increases, the possibility of the compressor stopping operation increases. Also, as the abnormality level increases, the possibility of the abnormality recurring increases. Specifically, due to wear powder in the piping that increases as the deterioration of the compressor progresses, the possibility of the device 2 breaking down again after repair increases.

[0028] By carrying out a controlled operation according to the detected abnormality level, it is possible to suppress wear within the device 2 and extend the life of the device 2. For example, when the shaft is damaged, the life of the air conditioner can be extended by having the air conditioner perform a predetermined degenerate operation that involves a decrease in functionality as an air conditioner, instead of the predetermined normal operation that is executed when the air conditioner is in a normal state.

[0029] By knowing the state of device 2 corresponding to the abnormality level, the user of device 2 or the manager of the building in which device 2 is installed can review the settings of device 2 and execute operations to extend its life. Furthermore, by knowing the state of device 2 corresponding to the abnormality level, the user or manager can appropriately create a maintenance plan, such as selecting the timing of maintenance. Furthermore, by requesting maintenance at a lower abnormality level, the user or manager can prevent the recurrence of the abnormality in device 2.

[0030] Here, the conventional monitoring device transmits abnormality information to each notification device every time the abnormality level of each device changes, that is, at each value from the lower limit to the upper limit of the abnormality level of each device. Each notification device notifies the abnormality of each device based on the received abnormality information. However, not all notification targets need to be aware of abnormalities at all abnormality levels. Some notification targets want to be notified at the stage of early abnormality when the abnormality level is low and want to take measures at an early stage, while others want to be notified at the stage when the damage to the equipment progresses and degenerate operation is required and want to take measures. Or, some want to take measures at the time the equipment breaks down. If notification is performed at all abnormality levels, unnecessary notifications may occur depending on the notification target, which may be a burden on the notification target. In addition, by performing notification at all abnormality levels, there is a possibility that abnormalities at the abnormality levels that the notification target wants to be notified of may be overlooked. This may cause the abnormality to progress further and require unplanned measures.

[0031] The abnormality notification unit 13 in the first embodiment transmits abnormality information to the notification device 3 that notifies the notification target, who is the notification target of the state of each device 2, at an abnormality level that the notification target desires to be notified. To explain this in detail with reference to FIG. 4, the notification targets may include notification target A who wants to avoid recurrence of the abnormal state as much as possible and take measures at the initial abnormality stage, notification target B who wants to avoid an increase in power consumption, notification target C who wants to respond to an abnormality in the device 2 by a planned stop every few years, and notification target D who wants to respond after the device 2 is stopped. The abnormality notification unit 13 transmits abnormality information at an abnormality level of 1 to the notification device 3 used by notification target A, and transmits abnormality information at an abnormality level of 2 to the notification device 3 used by notification target B. The abnormality notification unit 13 transmits abnormality information at an abnormality level of 4 to the notification device 3 used by notification target C, and transmits abnormality information at an abnormality level of 5 to the notification device 3 used by notification target D.

[0032] The storage unit 12 in the first embodiment stores information indicating the abnormality level at which each notification target person desires to be notified. That is, the abnormality level at which each notification target person desires to be notified is set in the monitoring device 1. Hereinafter, the abnormality level at which notification is desired may be referred to as the notification level. Also, information including the values ​​of the notification levels of multiple devices 2 may be referred to as notification level information.

[0033] FIG. 5 is a diagram illustrating the notification level information in the first embodiment. The notification level information is information in which notification knowledge-specific information for identifying the notification device 3 used by the notification target who is the notification target of the state of each device 2, device identification information for identifying each device 2, and the notification level at which the notification target desires to be notified about each device 2 are associated with each other. In the monitoring device 1, notification levels are set for the notification knowledge-specific information of the notification device 3 of the notification target who is the notification target of the state of each device 2 and the device identification information of each device 2. FIG. 5 illustrates a case where the maximum notification level is set to 5. In FIG. 5, notification knowledge-specific information of "X1", device identification information of "Y1", and notification level of "3" are associated with each other. That is, FIG. 5 shows that the notification target who is the notification target of the state of the device 2 with device identification information "Y1" uses the notification device 3 with notification knowledge-specific information "X1" and desires to be notified when the abnormality level of the device 2 is "3".

[0034] In FIG. 5, the device identification information of "Y2" and the device identification information of "Y3" are associated with the information by the notification knowledge of "X2". The notification level of "1" is associated with the information by the notification knowledge of "X2" and the device identification information of "Y2", and the notification level of "3" is associated with the information by the notification knowledge of "X2" and the device identification information of "Y3". The notification target who uses the notification device 3 with the notification knowledge information of "X2" is, for example, the manager of a building in which the device 2 with the device identification information of "Y2" and the device 2 with the device identification information of "Y3" are installed. In this way, by associating the device identification information of multiple devices 2 and the notification level of each of the multiple devices 2 with one information by the notification knowledge, the notification target can manage multiple devices 2 collectively. In addition, by setting the notification level for each device 2 according to the characteristics such as the durability of each device 2, the manager can flexibly create a maintenance plan for each device 2. Specifically, if the durability of the device 2 with the device identification information "Y2" is low, the administrator can request maintenance immediately by receiving a notification of the abnormality at the early stage of a breakdown of the device 2. This makes it possible to extend the life of the device 2 and prevent a decrease in the comfort of the user of the device 2.

[0035] Further, in FIG. 5, the notification knowledge-specific information of "X3" and the notification knowledge-specific information of "X4" are associated with the device identification information of "Y4". The notification knowledge-specific information of "X3" and the device identification information of "Y4" are associated with the notification level of "1", and the notification knowledge-specific information of "X4" and the device identification information of "Y4" are associated with the notification level of "5". A notification target using the notification device 3 with the notification knowledge-specific information of "X3" is, for example, a user of the device 2 with the device identification information of "Y4". A notification target using the notification device 3 with the notification knowledge-specific information of "X4" is, for example, a manager of a building in which the device 2 with the device identification information of "Y4" is installed. In this way, by associating multiple pieces of notification knowledge-specific information with one device identification information and associating a notification level with each piece of notification knowledge-specific information, it is possible to create a maintenance plan for the device 2 according to each notification target. For example, the user of the alarm device 3 with alarm information "X3" is a tenant of a building in which an air conditioner, which is device 2 with device identification information "Y4", is installed, and the user is a company that uses a computer that is affected by temperature. In this case, the user can request maintenance promptly by receiving an alarm at a low abnormality level, and can minimize disruption to business operations.

[0036] 5, the notification level information may include only one of the notification knowledge information and the device identification information when the notification device 3 is a remote controller of the device 2 or a display device provided on the main body of the device 2. The notification level information shown in FIG. 5 is shown in a table format, but the notification level information does not have to be in a table format as long as it is information that associates the notification knowledge information, the device identification information, and the notification level.

[0037] Returning to FIG. 2, the abnormality notification unit 13 refers to the notification level information and determines whether the abnormality level of each device 2 detected by the abnormality detection unit 11 matches the notification level. If the abnormality level of each device 2 matches the notification level, the abnormality notification unit 13 transmits the abnormality information to the notification device 3 used by the notification target who is to be notified about the state of each device 2. The abnormality notification unit 13 transmits the abnormality information to each notification device 3 by using notification information specific to each notification device 3. For example, if the notification device 3 is a communication device, an IP (Internet Protocol) address can be used as the notification information specific information, and the abnormality notification unit 13 can transmit the abnormality information to the notification device 3 based on the IP address.

[0038] The process performed by the abnormality notification unit 13 will be described with reference to FIG. 5. When the abnormality detection unit 11 detects an abnormality level of "1" for the device 2 having the device identification information "Y4", the abnormality level coincides with the notification level desired by the notification target using the notification device 3 having the notification knowledge information "X3". The abnormality notification unit 13 transmits abnormality information instructing the notification device 3 having the notification knowledge information "X3" to notify the notification target of the abnormality of the device 2. On the other hand, the abnormality level of "1" detected by the abnormality detection unit 11 does not coincide with the notification level desired by the notification target using the notification device 3 having the notification knowledge information "X4". In this case, the abnormality notification unit 13 does not transmit abnormality information instructing the notification device 3 having the notification knowledge information "X4" to notify the notification target of the abnormality of the device 2.

[0039] The abnormality notification unit 13 may transmit the abnormality information when the abnormality level matches the alarm level, or when the abnormality level is equal to or higher than the alarm level. In addition, the abnormality notification unit 13 may transmit information indicating the abnormality level of one or more devices 2 installed in the building to the alarm device 3 used by the manager of the building periodically, for example, monthly or semi-annually. In this case, the storage unit 12 may store information regarding the timing of transmitting the information indicating the abnormality level to the manager.

[0040] Hereinafter, the contents of the notification by the notification device 3 that has received the abnormality information will be described with reference to Fig. 6. Fig. 6 is a schematic diagram illustrating an example of the contents of the notification by the notification device in embodiment 1. Here, the notification contents will be exemplified by what is displayed on the screen of the remote controller of the air conditioner.

[0041] In FIG. 6, "1A Meeting Room" refers to the location where the device 2 is installed. Instead of the installation location, information for identifying the device 2, such as the device identification information of the device 2, may be displayed. "14:30 (Fri)" indicates the current time and day of the week. "Cooling" in FIG. 6 indicates the operation content, "wind direction automatic" indicates the wind direction set in the air conditioner which is the device 2, and "wind speed strong" indicates the wind speed set in the device 2. "Set temperature 26.0°C" indicates the set temperature of the device 2. "Indoor temperature 27.5°C" indicates the current air temperature of the air-conditioned space. The content "Device abnormality" is the content of the notification based on the abnormality information. The content of the notification based on the abnormality information may include both or either of the value of the abnormality level equal to the notification level and information indicating the type of abnormality corresponding to the abnormality level. When the content of the notification based on the abnormality information includes the value of the abnormality level, the abnormality information includes information indicating the abnormality level. When the notification content based on the abnormality information includes information indicating what kind of abnormality corresponds to the abnormality level, the abnormality information may include information indicating what kind of abnormality. Alternatively, the abnormality information may include information indicating the abnormality level, and the notification device 3 may store information indicating what kind of abnormality corresponds to the abnormality level. In addition, the notification content based on the abnormality information may include the content of a recommended operation or the content of a recommended measure according to the content of the abnormality corresponding to the notification level. In this case, the abnormality information may include information about the recommended operation or information indicating the recommended measure. Alternatively, the abnormality information may include information indicating the abnormality level, and the notification device 3 may store information about the recommended operation or information indicating the recommended measure in association with the abnormality level.

[0042] In this way, by the monitoring system 100 making a report according to the report level, the amount of communication is reduced compared to when reports are made for all abnormality levels, and the burden of confirmation work on the person to be notified is reduced. Also, the person to be notified can check for abnormalities in the device 2 at an appropriate timing according to his / her own policy. Therefore, misconceptions regarding the degree of abnormality that may occur when an abnormality below the report level is reported is reduced. Therefore, it is possible to reduce omissions of maintenance requests, and maintenance processing can be performed at an appropriate timing.

[0043] Here, the rate at which the abnormality progresses may differ for each device 2. When the rate at which the abnormality progresses is faster than expected, even if the target person is notified of the abnormality at the notification level, the abnormality in the device 2 may progress, and countermeasures such as maintenance may be delayed, resulting in an increased workload.

[0044] The monitoring device 1 according to the first embodiment calculates the rate of progression of the abnormality in the device 2, and transmits to the notification device 3 progression rate information instructing the notification device 3 to notify the rate of progression of the abnormality when the rate of progression of the abnormality is high. The notification device 3 notifies the notification device 3 of the rate of progression of the abnormality based on the received progression rate information. This enables the notification target person to request maintenance at a more appropriate timing. Furthermore, by the notification target person notifying the maintenance company of the rate of progression of the abnormality in the device 2, the maintenance company can appropriately plan the maintenance work process, thereby improving maintenance activities.

[0045] The progress speed calculation unit 14 shown in FIG. 2 calculates the progress speed of the abnormality of each of the multiple devices 2. The progress speed calculation unit 14 in the first embodiment calculates the speed of change of the abnormality level. Specifically, the progress speed calculation unit 14 calculates the speed from when the abnormality level becomes a certain value to when it becomes another certain value. The speed from when the abnormality level becomes a certain value to when it becomes another certain value corresponds to the change in the abnormality level with respect to the time from when the abnormality level becomes a certain value to when it becomes another certain value, that is, the difference between the another certain value and the certain value. The progress speed calculation unit 14 may calculate or measure the time required for the abnormality level to change as a value corresponding to the progress speed of the abnormality instead of the progress speed of the abnormality. The time required for the abnormality level to change can be obtained by calculation or measurement. For example, the time required for the abnormality level to change can be calculated by calculating the difference between the time when the abnormality level becomes the certain value and the time when it becomes the other certain value. Also, for example, the time required for the abnormal level to change can be measured by setting the time when the abnormal level becomes a certain value to 0 and measuring the time until the abnormal level becomes another certain value. The calculation or measurement of the time required for the abnormal level to change is also an example of the calculation of the progression speed.

[0046] The progress speed calculation unit 14 in the first embodiment calculates the speed at which the abnormality level changes from N to N+1, for each change in the abnormality level, where N is an integer equal to or greater than 0. The progress speed calculation unit 14 may also calculate the speed at which the abnormality level changes from N to N+2 or greater, for each change in the abnormality level by 2 or more.

[0047] The storage unit 12 stores a reference progression speed that serves as a reference for the progression speed of an abnormality in the device 2. The storage unit 12 in the first embodiment stores a reference progression speed for each change in the abnormality level of the device 2 from the minimum value 0 to the maximum value M. Note that the reference progression speed is determined in advance based on data obtained from a preliminary experiment for each device 2 or from actual operation of each device 2.

[0048] FIG. 7 is a diagram illustrating graphs of the reference travel speed stored in the memory unit and the travel speed calculated by the travel speed calculation unit in the first embodiment. In the example shown in FIG. 7, the maximum abnormality level of the device 2 is set to 5. In FIG. 7, the vertical axis indicates the abnormality level, and the horizontal axis indicates time. Furthermore, line α indicates the reference travel speed stored in the memory unit 12, and line β indicates the travel speed calculated by the travel speed calculation unit 14. More specifically, the slope of line α corresponds to the reference operating speed, and the slope of line β corresponds to the travel speed.

[0049] In FIG. 7, when the abnormality level is between 0 and 1, the progression speed is equal to the reference progression speed. However, the progression speed from abnormality level 1 to 2, the progression speed from abnormality level 2 to 3, the progression speed from abnormality level 3 to 4, and the progression speed from abnormality level 4 to 5 are all greater than the reference progression speed. Therefore, from FIG. 7, it can be read that the abnormality of the device 2 progresses more rapidly than expected by the notification target or the maintenance company after the abnormality level of the device 2 becomes 1. If the notification target can recognize that the progression speed of the abnormality of the device 2 is greater than the reference progression speed, he or she can make a maintenance request immediately. The maintenance company can create a prompt and appropriate maintenance work plan by obtaining information about the progression speed from the notification target. Therefore, unnecessary work due to delays in maintenance work is reduced, costs can be reduced, and the recurrence of the abnormality of the device 2 can be suppressed.

[0050] The progression speed calculation unit 14 judges whether or not the calculated progression speed of the abnormality of each device 2 is greater than a reference progression speed. The progression speed calculation unit 14 in the first embodiment judges whether or not the progression speed from the abnormality level becoming N to N+1 is greater than a reference progression speed from the abnormality level becoming N to N+1. The progression speed calculation unit 14 may also judge whether or not the progression speed from the abnormality level becoming N to N+2 or greater is greater than a reference progression speed from N to N+2 or greater. The progression speed calculation unit 14 calculates the progression speed of the abnormality of each device 2 from 0 until the abnormality level of each device 2 becomes the notification level, and performs the above-mentioned judgment process of whether or not the calculated progression speed is greater than the reference progression speed.

[0051] The storage unit 12 stores the determination result by the progression speed calculation unit 14 regarding the progression speed of the abnormality of each device 2, at least until the abnormality notification unit 13 transmits abnormality information regarding the abnormality of each device 2. The storage unit 12 may store only the determination result when the progression speed of the abnormality of each device 2 becomes greater than a reference progression speed. The storage unit 12 may store the progression speed calculated by the progression speed calculation unit 14 or the time required for the abnormality level to change, instead of or together with the determination result by the progression speed calculation unit 14, at least until the abnormality notification unit 13 transmits abnormality information.

[0052] When the abnormality level of each device 2 is equal to the notification level, the abnormality notification unit 13 transmits, together with the abnormality information, progression speed information instructing the notification device 3 used by the notification target who is the notification target of the state of each device 2 to notify the result of the determination by the progression speed calculation unit 14. The progression speed information may instruct the notification device 3 to notify the magnitude of the progression speed of the abnormality or the time required for the abnormality level to change, together with the determination result or instead of the determination result. When the abnormality level of each device 2 is equal to the notification level, only when the progression speed of the abnormality of each device 2 is greater than a reference progression speed, the abnormality notification unit 13 may transmit the progression speed information to the notification device 3 used by the notification target who is the notification target of the state of each device 2. The notification device 3 performs notification based on the received progression speed information. For example, when the progression speed of the abnormality is greater than the reference progression speed, the notification device 3 notifies information indicating that the abnormality is progressing quickly. 6, the notification device 3 may display on the screen the message "There is an abnormality in the equipment" and the message "The abnormality is progressing rapidly." By the notification device 3 issuing a notification based on the progression speed information, the notification recipient can promptly request maintenance as necessary, and the maintenance company can carry out appropriate maintenance work.

[0053] The above-mentioned progress speed calculation unit 14 is not necessarily an essential component and may be omitted. The processing by the progress speed calculation unit 14 is also not essential and may be omitted. Furthermore, the transmission of progress speed information by the abnormality notification unit 13 to the notification device 3 may also be omitted.

[0054] The hardware configuration of the monitoring device 1 according to the embodiment will be described below. Fig. 8 is a schematic diagram illustrating the hardware configuration of the monitoring device according to the first embodiment. The monitoring device 1 can be configured using, for example, a processor 16, a memory 17, and a communication interface circuit 18, which are connected to each other by a bus 15. The processor 16 is, for example, a CPU (Central Processing Unit) or an MPU (Micro Processing Unit). The memory 17 is, for example, a ROM (Read Only Memory) or a RAM (Random Access Memory).

[0055] The function of the collection unit 10 can be realized by the communication interface circuit 18. The function of the storage unit 12 can be realized by the memory 17. The function of the storage unit 12 can be realized by a hard disk drive (HDD), a solid state drive (SSD), a flash memory such as a universal serial bus (USB) memory or an SD memory card, or a compact disc (CD) instead of or together with the memory 17. The functions of the anomaly detection unit 11 and the progress speed calculation unit 14 can be realized by the processor 16 reading and executing various programs and data stored in the memory 17. The function of the anomaly notification unit 13 can be realized by the processor 16, the memory 17, and the communication interface circuit 18. The function of the progress speed calculation unit 14 to measure time for the calculation of the progress speed of the anomaly of the device 2 may be realized by a real time clock (RTC) or software. Alternatively, the progress speed calculation unit 14 may acquire information indicating time via the communication interface circuit 18 for the calculation of the progress speed of the anomaly of the device 2.

[0056] The monitoring device 1 may include an input device such as a keyboard or a touch panel for receiving input of the notification level. The monitoring device 1 may receive information indicating the notification level from the communication device of the notification target person via the communication interface circuit 18. In this case, the monitoring device 1 may receive information indicating the notification level of the manager and information indicating the notification level of the user of the device from the communication device of the manager of the building in which the device 2 is installed. In addition, the monitoring device 1 may receive information indicating the notification levels of both or one of the user and the manager from the device 2 via the communication interface circuit 18. All or part of the functions of the monitoring device 1 may be realized by dedicated hardware.

[0057] The flow of monitoring processing by the monitoring system 100 will be described below with reference to Fig. 9. Fig. 9 is a flowchart illustrating the flow of monitoring processing by the monitoring system according to the first embodiment. For ease of understanding, Fig. 9 shows the flow of monitoring processing in the case where the monitoring system 100 includes a monitoring device 1, one device 2, and one notification device 3. When the monitoring system 100 includes a monitoring device 1, multiple devices 2, and multiple notification devices 3, the monitoring processing is performed in parallel with the following steps S1 to S10 for each device 2.

[0058] In step S1, the monitoring device 1 acquires and stores information indicating the notification level via the input device or the communication interface circuit 18. In step S2, the monitoring device 1 acquires and stores reference operation information. In this case, the monitoring device 1 may accept an input of predetermined reference operation information and store the accepted reference operation information, or may generate reference operation information based on operation information from the installation of the device 2 until a predetermined time and store the generated reference operation information. The monitoring device 1 may execute the processes of steps S1 and S2 in the reverse order, or in parallel.

[0059] In step S3, the collection unit 10 of the monitoring device 1 collects operation information from the device 2. In step S4, the abnormality detection unit 11 of the monitoring device 1 refers to the information for abnormality detection and detects the abnormality level of the device 2 based on the collected operation information. In step S5, the abnormality detection unit 11 determines whether or not the abnormality level detected in the current step S4 is different from the abnormality level detected in the previous step S4. That is, the abnormality detection unit 11 determines whether or not the abnormality level has changed. Note that the determination in step S4 may be performed by the abnormality notification unit 13 or the progress speed calculation unit 14 instead of the abnormality detection unit 11.

[0060] If the abnormality level has not changed (step S5: NO), the processing of the monitoring system 100 returns to step S3. If the abnormality level has changed (step S5: YES), in step S6, the progression speed calculation unit 14 calculates the progression speed from the previous abnormality level to the current abnormality level. In calculating the progression speed, the progression speed calculation unit 14 calculates or measures the time from when the abnormality level of the device 2 reached the previous value to when it reached the current value. The progression speed calculation unit 14 also calculates the difference between the value of the previous abnormality level and the value of the current abnormality level. Then, the progression speed calculation unit 14 calculates the progression speed of the abnormality of the device 2 based on the obtained time and the difference.

[0061] In step S7, the progress speed calculation unit 14 judges whether the calculated progress speed is greater than a reference calculation speed, and stores the judgment result in the memory unit 12. The reference progress speed used here is a progress speed that is a reference for the progress from the previous abnormal level to the current abnormal level. In step S8, the abnormality notification unit 13 judges whether the abnormality level is equal to the notification level.

[0062] If the abnormality level is not equal to the notification level (step S8: NO), the monitoring system 100 returns the process to step S3. If the abnormality level is equal to the notification level (step S8: YES), the abnormality notification unit 13 transmits abnormality information to the notification device 3 in step S9. At this time, the abnormality notification unit 13 transmits to the notification device 3 progress speed information including the judgment result by the progress speed calculation unit 14 and instructing the notification device 3 to notify the judgment result. Note that in the first embodiment, the judgment result included in the progress speed information is obtained for each change in the abnormality level until the abnormality level of the device 2 becomes the notification level. Specifically, when the notification level is "2", the progress speed information includes the judgment result from when the abnormality level changes from "0" to "1" and the judgment result from when the abnormality level changes from "1" to "2".

[0063] In step S9, the abnormality notification unit 13 may transmit, together with the abnormality information, to the notification device 3, progression speed information instructing the notification device 3 to notify only the determination result when the progression speed of the abnormality in the device 2 is higher than a reference progression speed.

[0064] The alarm device 3 that has received the abnormality information in step S10 issues an alarm about the abnormality of the equipment 2. When the alarm device 3 has received the traveling speed information, the alarm device 3 issues an alarm about the determination result by the traveling speed calculation unit 14 based on the traveling speed information. After the processing of step S10, the monitoring processing by the monitoring system 100 ends.

[0065] After the monitoring process described above is completed by the monitoring system 100, the notification target person requests maintenance, and a predetermined detailed diagnosis is performed remotely or on-site on the device 2. Then, the device 2 is repaired or replaced as necessary.

[0066] In the above monitoring process, steps S6 to S7 are not necessarily required and may be omitted. If steps S6 to S7 are omitted, the monitoring system 100 executes step S8 after step S5. Transmission of travel speed information by the abnormality notification unit 13 to the alarm device 3 in step S9 is also not necessarily required and may be omitted.

[0067] The effects of the monitoring device 1 according to the first embodiment will be described below. The monitoring device 1 according to the first embodiment includes a collection unit 10, an abnormality detection unit 11, a storage unit 12, and an abnormality notification unit 13. The collection unit 10 collects operation information indicating the operation state of the device 2 from the device 2. The abnormality detection unit 11 detects the abnormality level of the device 2 based on the operation information collected from the device 2. The storage unit 12 stores information indicating the notification level, which is the abnormality level of the device 2 set for the notification device 3 that notifies the state of the device 2. When the abnormality level detected by the abnormality detection unit 11 is equal to the notification level, the abnormality notification unit 13 transmits abnormality information instructing the notification device 3 that notifies the notification target to notify about the abnormality of the device 2.

[0068] According to the monitoring device 1 of the first embodiment, when the abnormality level of the device 2 is equal to the notification level, the abnormality notification unit 13 transmits abnormality information to the notification device 3 instructing the notification of the abnormality of the device 2. The notification level is the abnormality level of the device 2 that the notification target desires to be notified, and is set for the notification device 3 that notifies the notification target of the state of the device 2, and the storage unit 12 stores information indicating the notification level. This makes it possible to notify the notification target of the abnormality of the device 2 in accordance with the maintenance plan of the device 2 of the notification target. Therefore, the burden on the notification target is reduced, and the amount of communication can be reduced.

[0069] The monitoring device 1 according to the first embodiment further includes a progress speed calculation unit 14. The progress speed calculation unit 14 calculates the progress speed of the abnormality of the device 2, and judges whether the calculated progress speed is greater than a predetermined reference progress speed. When transmitting the abnormality information, the abnormality notification unit 13 transmits progress speed information to the notification device 3 instructing the notification of the judgment result by the progress speed calculation unit 14. The notification target person can flexibly construct a maintenance plan for the device 2 by being notified of the judgment result. In addition, the maintenance company can construct a maintenance work plan according to the state of the device 2 based on the judgment result. For example, when the progress speed of the abnormality of the device 2 is greater than the reference progress speed, the notification target person can recognize that prompt maintenance is required, and can promptly request maintenance. Then, the maintenance company can take prompt measures according to the progress speed of the abnormality of the device 2 by being notified of the judgment result from the notification target person.

[0070] The monitoring device 1 according to the first embodiment further includes a progress speed calculation unit 14. The progress speed calculation unit 14 calculates the progress speed of the abnormality of the device 2 and judges whether the calculated progress speed is higher than a predetermined reference progress speed. When the progress speed is higher than the reference progress speed, the abnormality notification unit 13 transmits progress speed information to the notification device 3 instructing the notification device 3 to notify the judgment result by the progress speed calculation unit 14 when transmitting the abnormality information. This allows the notification target person to recognize that the progress speed of the abnormality of the device 2 is higher than expected and that more immediate measures are required than planned, and can promptly make a maintenance request. In addition, the maintenance company can plan and execute a work process in accordance with the progress speed of the abnormality of the device 2 by being notified of the judgment result by the notification target person. This prevents the maintenance of the device 2 from being delayed.

[0071] The progression speed in the first embodiment is the speed of temporal change of the abnormality level, which allows the progression speed calculation unit 14 to easily obtain the progression speed quantitatively.

[0072] The storage unit 12 in the first embodiment stores reference operation information indicating an operation state of the device 2 when the device 2 operates normally. The abnormality detection unit 11 detects an abnormality level of the device 2 based on the operation information and the reference operation information. In detecting the abnormality level of the device 2, the abnormality detection unit 11 uses the reference operation information as a reference, thereby enabling the abnormality detection unit 11 to accurately detect the abnormality level from the operation information.

[0073] The reference operation information in the first embodiment is obtained by using the operation information collected by the collection unit 10 within a predetermined time from the time when the device 2 is installed. As a result, even if the performance of each device 2 differs, reference operation information corresponding to each device 2 can be obtained, and the use of the reference operation information makes it possible to detect the abnormality level of each device 2 with high accuracy.

[0074] Embodiment 2 The monitoring device 1 according to the first embodiment transmits abnormality information to the notification device 3 when the abnormality level is equal to the notification level. The monitoring device 1 according to the second embodiment additionally transmits abnormality level information to the notification device 3 instructing the notification device 3 to notify information indicating the abnormality level when the abnormality level has not reached the notification level. In the second embodiment, it is assumed that the abnormality information includes information indicating the abnormality level.

[0075] In the second embodiment, when the notification device 3 receives abnormality level information, it notifies the value of the abnormality level based on the abnormality level information, and when it receives abnormality information, it notifies an abnormality in the device 2 based on the abnormality information. Here, the notification device 3 performs notification based on the abnormality level information in a manner different from that of notification based on abnormality information. The monitoring device 1 according to the second embodiment will be described in detail below. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals. In the second embodiment, the same configurations as those in the first embodiment and the same functions as those in the first embodiment will not be described unless there are special circumstances.

[0076] The notification device 3 in the second embodiment notifies by displaying an abnormality in the device 2 on a screen. The notification device 3 in the second embodiment displays the abnormality level and the abnormality of the device 2 in each of two divided areas on the screen. Hereinafter, the area on the screen that displays the abnormality in the device 2 may be referred to as a main area, and the area that displays the abnormality level of the device 2 may be referred to as a sub area. The display content of the abnormality in the device 2 in the main area is the same as that in the first embodiment exemplified in FIG. 6, and therefore a description thereof will be omitted.

[0077] FIG. 10 is a diagram showing a display example in a sub-area on a screen of an alarm device in the second embodiment. In the example shown in FIG. 10, the abnormality level value of the device 2 is set to any value between 0 and 5. In the sub-area shown in FIG. 10, a small area E including the numerical values ​​of a plurality of abnormality levels and an arrow mark F indicating the current abnormality level of the device 2 are displayed. Note that the small area E is a collective term for the small areas E0 to E5. Each of the small areas E0 to E5 includes an abnormality level value between 0 and 5. Each time the abnormality level of the device 2 changes, the mark F moves to indicate the abnormality level value after the change. Below, a case where the alarm level is 3 will be described as an example.

[0078] In the display contents shown in FIG. 10, the small area E3 showing an abnormality level equal to the notification level may be displayed in red, for example, to alert the notification target. The display of the small area E3 in red may be performed based on abnormality information when the abnormality level is 3, and when the abnormality level is a value less than 3, the small area E3 may be displayed in gray, for example. The small areas E0 to E2 including abnormality level values ​​less than 3 may be displayed in a color different from the small area E3. For example, the small area E0 including the minimum abnormality level of 0 may be displayed in a color such as blue or green that gives the notification target peace of mind, and a gradation from blue or green to red may be applied from the small area E0 to the small area E3. The color display of each of the small areas E0 to E2 may also be performed when the abnormality level of the device 2 reaches the value shown in each of the small areas E0 to E2. When the abnormality level of the device 2 has not reached 1, the small regions E1 to E2 may be displayed in gray or the like, and when the abnormality level of the device 2 is 1, the small region E1 may be displayed in the above-mentioned gradation color from blue or green to red based on the abnormality level information, and the small region E2 may be displayed in gray or the like. The small regions E4 to E5, which indicate abnormality levels 4 to 5 that are higher than the alarm level value, may be displayed in red or the like, similar to the small region E3. The small regions E4 to E5 may be displayed in red if the abnormality level of the device 2 should reach 4 or higher, and may be displayed in gray or the like if the abnormality level of the device 2 is less than 4.

[0079] As illustrated in Fig. 6 and Fig. 10, the notification content based on the abnormality information is different in mode from the notification content based on the abnormality level information. The abnormality level information according to the second embodiment instructs the notification device 3 to notify the information indicating the abnormality level in a mode different from the notification content based on the abnormality information. The information indicating the abnormality level instructed to be notified by the abnormality level information indicates an abnormality level that does not match the notification level. Instead of the abnormality level information instructing to notify the information indicating the abnormality level in a mode different from the notification content based on the abnormality information, the notification device 3 may be set to make the notification content based on the abnormality level information and the notification content based on the abnormality information different in mode.

[0080] Hereinafter, the flow of the monitoring process by the monitoring system 100 according to the second embodiment will be described with reference to Fig. 11. Fig. 11 is a flowchart illustrating the monitoring process by the monitoring system according to the second embodiment. For ease of understanding, Fig. 11 shows the flow of the monitoring process in the case where the monitoring system 100 includes a monitoring device 1, one device 2, and one notification device 3. In the case where the monitoring system 100 includes a monitoring device 1, multiple devices 2, and multiple notification devices 3, the monitoring process is performed in parallel with the following steps S21 to S32 for each device 2.

[0081] The processing of steps S21 to S28 is the same as the processing of steps S1 to S8. If the abnormality level is not equal to the notification level in step S28 (step S28: NO), in step S29, the abnormality notification unit 13 transmits abnormality level information to the notification device 3 instructing the notification device 3 to notify information indicating the abnormality level detected by the abnormality detection unit 11 in step S24. The notification device 3 that receives the abnormality level information in step S30 notifies the information indicating the abnormality level. After the processing of step S30, the monitoring system 100 returns the processing to step S23. The processing of steps S31 to S32 is the same as the processing of steps S9 to S10.

[0082] The effects of the monitoring device 1 according to the second embodiment will be described below. The abnormality notification unit 13 in the second embodiment transmits, to the notification device, abnormality level information that instructs the notification device to notify information indicating an abnormality level detected by the abnormality detection unit 11, which does not match the notification level, in a manner different from the notification content based on the abnormality information. This allows the notification target person to confirm the current level of the abnormality of the device 2, and makes it easy to confirm the abnormality of the device 2 at the notification level.

[0083] Although the embodiments have been described above, the contents of the present disclosure are not limited to the embodiments and include the scope of conceivable equivalents. [Explanation of symbols]

[0084] 1 monitoring device, 2 equipment, 3 alarm device, 10 collection unit, 11 abnormality detection unit, 12 memory unit, 13 abnormality notification unit, 14 progress speed calculation unit, 15 bus, 16 processor, 17 memory, 18 communication interface circuit, 100 monitoring system, A, B, C, D notification target, E, E0, E1, E2, E4, E5 small area, F mark.

Claims

1. A monitoring device for monitoring a state of a device, A collection unit that collects operation information indicating an operation state of the device from the device; an abnormality detection unit that detects an abnormality level of the device based on the operation information collected from the device; a storage unit that stores information indicating a notification level, which is an abnormality level of the device, set for a notification device that notifies the state of the device; an abnormality notification unit that transmits, to the notification device, abnormality information instructing the notification device to notify the abnormality of the device when the abnormality level detected by the abnormality detection unit is equal to the notification level; a progression speed calculation unit that calculates a progression speed of the abnormality of the device and determines whether the calculated progression speed is greater than a predetermined reference progression speed; Equipped with The abnormality notification unit is The monitoring device transmits, when transmitting the abnormality information, progress speed information to the notification device instructing the notification device to notify the result of the determination made by the progress speed calculation unit.

2. The abnormality notification unit The monitoring device according to claim 1 , wherein, when the traveling speed is greater than the reference traveling speed, the traveling speed information is transmitted to the notification device when the abnormality information is transmitted.

3. 3. The monitoring device according to claim 1, wherein the progression speed is a rate of change of the abnormality level over time.

4. The storage unit is storing reference operating information indicating an operating state of the device when the device is operating normally; The abnormality detection unit is The monitoring device according to any one of claims 1 to 3, further comprising: a monitoring device for detecting an abnormality level of the equipment based on the operating information and the reference operating information.

5. The monitoring device according to claim 4 , wherein the reference operating information is obtained using the operating information collected by the collection unit within a predetermined time from the time the device is installed.

6. The abnormality notification unit is transmitting abnormality level information to the alarm device, the abnormality level information instructing the alarm device to notify information indicating the abnormality level detected by the abnormality detection unit, which does not match the notification level, in a manner different from the notification content based on the abnormality information; The monitoring device according to any one of claims 1 to 5.

7. Equipment and An alarm device that notifies the state of the device; A monitoring device for monitoring the state of the device; A surveillance system having: The monitoring device includes: A collection unit that collects operation information indicating an operation state of the device from the device; an abnormality detection unit that detects an abnormality level of the device based on the operation information collected from the device; a storage unit that stores information indicating a notification level that is an abnormality level of the device set for the notification device; an abnormality notification unit that transmits, to the notification device, abnormality information instructing the notification device to notify the abnormality of the device when the abnormality level detected by the abnormality detection unit is equal to the notification level; a progression speed calculation unit that calculates a progression speed of the abnormality of the device and determines whether the calculated progression speed is greater than a predetermined reference progression speed; Equipped with The abnormality notification unit is When transmitting the anomaly information, transmitting progress speed information to the notification device instructing the notification device to notify the result of the determination made by the progress speed calculation unit, The notification device includes: When the abnormality information is received, the abnormality of the device is notified based on the abnormality information; When the travel speed information is received, a result of the determination by the travel speed calculation unit is notified. Surveillance system.

8. A monitoring method executed by a monitoring device that monitors a state of a device, comprising: A collection step of collecting operation information indicating an operation state of the device from the device; an abnormality detection step of detecting an abnormality level of the equipment based on the operation information collected from the equipment; Including, The monitoring device includes: storing information indicating a notification level, which is an abnormality level of the device, set for a notification device that notifies the state of the device; The monitoring method is an abnormality notification step of transmitting, to the notification device, abnormality information instructing the notification device to notify the abnormality of the device when the abnormality level detected in the abnormality detection step is equal to the notification level; a progression speed calculation step of calculating a progression speed of the abnormality of the device and determining whether the calculated progression speed is greater than a predetermined reference progression speed; Including, The abnormality notification step includes: a step of transmitting, when transmitting the anomaly information, travel speed information to the notification device, the travel speed information instructing the notification device to notify a result of the determination in the travel speed calculation step, Monitoring method.

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