JP7131189B2 - DATA COLLECTION MONITORING DEVICE, DATA COLLECTION MONITORING METHOD, AND DATA COLLECTION MONITORING SYSTEM - Google Patents

Description

The present invention relates to a data collection status monitoring device, a data collection status monitoring method, and a data collection status monitoring system.

In recent years, there are sensor data collection systems that collect information on various things. Information collected by the sensor data collection system can be provided to applications, for example, and the applications can use the information to provide various services.

If some kind of abnormality occurs in the sensor data collection system, it will affect the data values of the collected sensor data, and also affect the applications that use the sensor data. Therefore, it is required to monitor the state of the sensor data collection system.

Conventionally, there is one disclosed in Non-Patent Document 1 as an example of a monitoring system for the state of a sensor data collection system. The technology described in Non-Patent Document 1 is a method of remotely monitoring the state of communication equipment in a sensor data collection system, and in particular is a function of remotely managing the state of a gateway. For example, the technology described in Non-Patent Literature 1 monitors whether the gateway has started normally or whether an abnormality has occurred on the WEB screen. Furthermore, it is disclosed to remotely change gateway settings or update firmware.

Platform Home Co., Ltd. Corporate website, product information “AirManage (registered trademark) for IoT”, [Online], search date March 14, 2018, Internet <URL; https://openblocks.plathome.co.jp/products/ airmanage_for_iot/>

However, the above-described conventional communication device monitoring method manages the state of each device, but does not consider the state of the sensor data collection system as a whole.

For example, it is conceivable that some data values in the sensor data collected periodically may be abnormal or some data may be missing. When the data values of the sensor data are averaged and used by the application, there is a problem that it is difficult to detect an abnormality because the application does not know what values the sensor data of each sensor are.

Further, for example, when a failure occurs during sensor data collection, recovery may be achieved by restarting the wireless communication terminal or gateway or changing the settings. However, when a large number of devices are used, a person analyzes the details of the failure by looking at the error log, etc., and determines which device should be controlled and how. As a result, there has been no way to automatically and quickly and optimally perform failure recovery.

Further, for example, it was difficult to know when an application would experience a critical level of anomaly and to recover from a failure.

Therefore, in consideration of the state of the entire data collection system, the collection status during data collection is monitored, and the judgment value is derived according to the state of the device and the data value of the collected data until the data is collected. Also, there is a demand for a data collection condition monitoring device, a data collection monitoring method, and a data collection condition monitoring system that can automatically perform optimal restoration in the event of an abnormality on the route.

In order to solve this problem, a data collection status monitoring device according to a first aspect of the present invention is a data collection system having one or more data communication terminals and a data collection device for collecting data from each data communication terminal. A data collection status monitoring device for monitoring the data collection status, comprising: (1) related monitoring target information acquisition means for acquiring operating status information of each communication device between each data communication terminal and the data collection device; ) Collected data acquisition means for acquiring collected data collected from each data communication terminal; an analysis means for analyzing the collection status of the collected data in consideration of the operating status , the analysis means capturing the time fluctuations of the operation status information of each communication device and the collected data to determine the collection status of the collected data; It is characterized by deriving the reliability of the collected data according to the determination result .

A data collection status monitoring method according to a second aspect of the present invention provides data collection for monitoring the data collection status of a data collection system having one or more data communication terminals and a data collection device for collecting data from each data communication terminal. In the situation monitoring method, (1) related monitoring target information acquisition means acquires operation status information of each communication device between each data communication terminal and a data collection device, and (2) collected data acquisition means (3) the operating state of each communication device at the time of data collection by the data collecting device, based on at least the operating state information of each communication device and the collected data; Analyzing the collection status of collected data in consideration of the above , the analysis means determines the collection status of collected data by capturing the time fluctuations of the operating status information of each communication device and the collected data, and collects according to the determination result It is characterized by deriving the reliability of data .

A data collection status monitoring system according to a third aspect of the present invention is a data collection system for monitoring the data collection status of a data collection system having one or more data communication terminals and a data collection device for collecting data from each data communication terminal. A status monitoring system comprising: (1) related monitoring target information acquisition means for acquiring operating status information of each communication device between each data communication terminal and a data collection device; (3) collected data acquisition means for acquiring collected data; and (3) collection data acquisition taking into account the operating state of each communication device at the time of data collection by the data collecting device, based on at least the operating state information of each communication device and the collected data. analysis means for analyzing collection status, the analysis means captures the time fluctuations of the operating status information of each communication device and the collected data, determines the collection status of the collected data, and collects data according to the determination result. It is characterized by deriving the reliability of

According to the present invention, in consideration of the state of the entire data collection system, the state of collection during data collection is monitored, and judgment is made according to the state of the device and the data value of the collected data until the data is collected. Values can be derived, and optimal recovery can be automatically performed in the event of an abnormality on the route.

1 is an overall configuration diagram showing the overall configuration of a data collection status monitoring system according to a first embodiment; FIG. 3 is an internal configuration diagram showing an internal configuration of a monitoring server according to the first embodiment; FIG. 4 is an explanatory diagram showing the flow of operating state data and sensor data according to the first embodiment; FIG. 6 is a flow chart showing the operation of sensor data collection status monitoring processing in the monitoring server according to the first embodiment; FIG. 4 is an explanatory diagram showing an example of sensor data collection status and device status according to the first embodiment; 8 is an internal configuration diagram showing the internal configuration of a monitoring server according to the second embodiment; FIG. 9 is a flowchart showing the operation of sensor data collection status monitoring processing in the monitoring server according to the second embodiment; FIG. 11 is a configuration diagram showing an example of state information stored in a device state information storage unit according to the second embodiment;

(A) First Embodiment Hereinafter, a first embodiment of a data collection situation monitoring device, a data collection situation monitoring method, and a data collection situation monitoring system according to the present invention will be described with reference to the drawings.

(A-1) Configuration of First Embodiment [Overall Configuration]
FIG. 1 is an overall configuration diagram showing the overall configuration of the data collection status monitoring system according to the first embodiment.

In FIG. 1, the data collection status monitoring system 10 according to the first embodiment includes a plurality of sensor communication terminals 1 (1-1 to 1-3), gateways 2 (GW2-1, GW2-2), a data collection server 3. It has an application 4, a monitor terminal 5, and a monitoring server 6.

In FIG. 1, the network between the sensor communication terminal 1 and the gateway 2 is the sensor network SN. In general, a low-speed wireless communication method such as a specified low-power wireless method can be applied to the communication method of the sensor network SN. For example, wireless network standards such as IEEE802.11a/b/g/n, or wireless communication systems such as IEEE802.15.4, Bluetooth (registered trademark), and UWB may be used. The sensor network SN uses a communication system that is slower than the backbone network NT.

The network between gateway 2, data collection server 3, application 4, monitor terminal 5 and monitor server 6 is backbone network NT. The backbone network NT is, for example, Ethernet (registered trademark) or the Internet. The backbone network NT may be a wireless line or a wired line.

The sensor data collection system 7 is a system in which the data collection server 3 collects sensor data of each sensor communication terminal 1 via each gateway 2 . The sensor data collection system 7 mainly includes each sensor communication terminal 1 , each gateway 2 and a data collection server 3 .

[Sensor communication terminal]
The sensor communication terminal 1 has one or more sensors and a communication unit. The sensor communication terminal 1 may have only one type of sensor, or may have multiple types of sensors. Also, a plurality of sensors of the same type may be provided. The periodic sensing period (measurement period) of each sensor can be determined according to the type of sensor and system operation.

The sensor communication terminal 1 transmits information (packets) including sensor data sensed by the built-in sensor to the gateway 2 . Here, the information including the sensor data includes identification information of the sensor (for example, information indicating the type of the sensor, part or all of identification information given to the sensor in advance), identification information identifying the sensor communication terminal 1 (eg, MAC address, etc.) and time information (eg, sensing time, etc.) may be included.

The sensor communication terminal 1 also has an operating state acquisition function for acquiring operating state data inside the terminal. The sensor communication terminal 1 transmits operating state data of its own terminal to the gateway 2 . Here, the information including the operating status data may include identification information (for example, MAC address, etc.) of each sensor communication terminal 1 and time information indicating the acquisition time of the operating status data.

[gateway]
The gateway 2 has a function of relaying data between the sensor network SN and the backbone network NT. Upon receiving information including sensor data from each sensor communication terminal 1 , the gateway 2 transmits information including sensor data of each sensor communication terminal 1 to the data collection server 3 . Thereby, sensor data can be provided to the data collection server 3 .

The gateway 2 also has an operating state acquisition function for acquiring operating state data inside its own device. The gateway 2 transmits information including operating state data of each sensor communication terminal 1 received from each sensor communication terminal 1 through the sensor network SN to the monitoring server 6, and also monitors information including operating state data of the gateway 2 itself. Send to server 6. As a result, the operating state data of each sensor communication terminal 1 and gateway 2 can be provided to the monitoring server 6 . The information including the operating status data may include identification information (for example, MAC address, etc.) for identifying the gateway 2, time information indicating the acquisition time of the operating status data, and the like.

Various methods can be widely applied to the method by which the gateway 2 acquires information including sensor data from each sensor communication terminal 1 . As an example, for example, the gateway 2 periodically (periodically) transmits an information acquisition request such as a polling packet to each sensor communication terminal 1, and each sensor communication terminal 1 that receives this requests responds to the polling packet. As a method, there is a method of transmitting information including sensor data to the gateway 2 by wireless communication. As another method, each sensor communication terminal 1 may transmit information including sensor data to the gateway 2 by push notification or the like. In any case, the gateway 2 can acquire information including sensor data from each sensor communication terminal 1 .

[Data collection server]
The data collection server 3 collects information including sensor data from each sensor communication terminal 1 via the gateway 2 and stores (accumulates and manages) each sensor data.

The data collection server 3 provides each sensor data to the application 4 and transmits each sensor data collected from each sensor communication terminal 1 to the monitoring server 6 . In this embodiment, as will be described later, the monitoring server 6 determines the sensor data collection status in the sensor data collection system 7 based on the data values of each sensor data. Therefore, the data collection server 3 transmits each sensor data to the application 4 in order to perform processing using each sensor data, and also provides (transmits) each sensor data to the monitoring server 6 .

[application]
The application 4 is an application that uses each sensor data collected by the data collection server 3 or a processing unit that executes the application.

For example, the application 4 requests the data collection server 3 for sensor identification information (sensor ID) of sensor data to be acquired. In response, the data collection server 3 provides the application 4 with sensor data corresponding to the sensor ID. Note that the method of providing sensor data to the application 4 is not limited to the above method, and various methods can be applied.

The application 4 uses each sensor data to provide functions, and the functions of the application 4 are not particularly limited. Although only one application 4 is shown in FIG. 1, a plurality of applications 4 having different functions may be used.

The application 4 receives the monitoring result of the sensor data collection status in the sensor data collection system 7 from the monitoring server 6, as will be described later. The monitoring result from the monitoring server 6 includes the reliability of each sensor data as described later, and the application 4 can provide functions by referring to the monitoring result.

[Monitor terminal]
The monitor terminal 5 displays various data managed by the monitoring server 6, sets (or changes settings for) each device such as each gateway 2, the data collection server 3, and the monitoring server 6, and controls each gateway. 2, each sensor communication terminal 1, and the operating status of each device. As a result, it is possible to know that an abnormality has occurred in the sensor data collection system 7 (for example, an abnormality in equipment, etc.), so that recovery or the like can be performed.

[Monitoring server]
The monitoring server 6 monitors the collection status of sensor data in the sensor data collection system 7 and determines the collection status judgment value of the target sensor data. The monitoring server 6 provides monitoring results (hereinafter also referred to as determination results) to the monitor terminal 5 to display them, and provides them to the application 4 or the data collection server 3 .

Here, the collection status determination value is determined by taking into account the collection status of the sensor data collected by the data collection server 3 and the state of each device on the sensor data transfer path during the period in which the sensor data is collected. is information that determines the reliability of the sensor data. In this embodiment, a case where the monitoring server 6 determines the reliability of sensor data for each hour will be described as an example of the collection status determination value.

The monitoring server 6 acquires, for example, operating state data of each sensor communication terminal 1 and the gateway 2 via the gateway 2 . The monitoring server 6 also acquires operating state data from the data collection server 3 . This allows the sensor data collection system 7 to grasp the operating state of each device on the path along which the sensor data is transferred. More specifically, the operating state of each sensor communication terminal 1 that senses sensor data, the state (communication state) between the sensor communication terminal 1 and the gateway 2, the state (communication state) between the gateway 2 and the data collection server 3 ( state of the sensor data collection system 7 as a whole, such as communication state).

In addition, the monitoring server 6 acquires each accumulated and managed sensor data from the data collection server 3 in order to acquire target sensor data. Then, the monitoring server 6 analyzes the collection status of the sensor data collected by the data collection server 3 and the transition of the data value of each sensor data.

For example, if there is an abnormality during sensor data collection or if there is an abnormality in the status of each device on the sensor data transfer path, the sensor data value may become an abnormal value, or the sensor data may not be collected. It may happen that the server 3 is not reached. Even in such a case, the application 4 will use the sensor data provided from the data collection server 3 without knowing the situation. In other words, since the application 4 has no way of knowing that the data value of the sensor data is abnormal or the operating state of each device is abnormal, the application 4 may use the sensor data as it is. .

Therefore, the monitoring server 6 monitors at least the operating state of each device, the collection state of each sensor data, and the like, and determines the reliability of each sensor data based on the state of the sensor data collection system 7 as a whole. Then, monitoring results including the reliability of each sensor data are provided to the application 4 and the monitor terminal 5 .

[Monitoring server internal configuration]
FIG. 2 is an internal configuration diagram showing the internal configuration of the monitoring server 6 according to the first embodiment.

In FIG. 2 , the monitoring server 6 has a rule storage unit 61 , a monitoring data collection unit 62 , an analysis unit 63 , a monitoring result transmission unit 64 and a related monitoring target collection unit 65 .

Although the hardware configuration of the monitoring server 6 is not shown, it is assumed to be a device having a CPU, ROM, RAM, EEPROM, communication device, and the like. Various functions of the monitoring server 6 are realized by the CPU executing a processing program (for example, a data collection status monitoring program) stored in the storage area. The system may be constructed by installing the data collection status monitoring program. In this case also, the data collection status monitoring program can be represented by each processing unit shown in FIG.

The rule storage unit 61 stores analysis rules, identification information of the target sensor communication terminal 1, identification information of the data collection server 3, identification information of the gateway 2 through which the target sensor data is passed, collection conditions, and the like.

The rule storage unit 61 stores analysis rules for designating information about devices including sensors (for example, sensor IDs, etc.), sensor communication terminals 1, gateways 2, etc., and for determining states. In addition, the rule storage unit 61 includes notification conditions, notification destinations, and the like that specify when and to whom the determination result (monitoring result) is to be notified.

Analysis rules are rules/conditions used to determine the reliability of each sensor data in the sensor data collection system 7 . Below, the said analysis rule is also called "sensor data collection state determination rule."

Analysis rules include sensors (for example, sensor IDs) to be analyzed (targets for determination of sensor data collection state), sensor communication terminals 1 that sense sensor data, and "collection rules" that include conditions related to sensor data collection status, sensor It has "judgment rules" regarding the definition of data reliability and judgment methods, and "notification rules" concerning notification conditions for judgment results (monitoring results). A detailed description of such analysis rules is provided in detail in the Operation section.

The analysis rule may be defined for each sensor communication terminal 1 that performs sensing. Moreover, since the sensor communication terminal 1 may have a plurality of sensors, it may be defined for each sensor (for example, sensor ID). Therefore, the rule storage unit 61 may store not only one analysis rule but also a plurality of analysis rules. Note that the method of defining the analysis rule is not limited to the above, and the collection period of sensor data may be specified.

The monitoring data collection unit 62 collects and holds target sensor data specified by each analysis rule. More specifically, the monitoring data collection unit 62 collects the operating state data of the sensor communication terminals 1-N from the data collection server 3 and holds it.

The related monitoring target collection unit 65 collects and holds the device status data of each device existing on the target sensor data transfer path. Specifically, the related monitoring target collection unit 65 collects and holds operating state data of the sensor communication terminal, the gateway, and the data collection server 3 on which the target sensor is mounted. Monitoring data from multiple sensors may be shared.

The analysis unit 63 uses the data collected by the monitoring data collection unit 62 and the related monitoring target collection unit 65 according to each analysis rule in the rule storage unit 61 to determine the state.

The monitoring result transmission unit 64 transmits the determination result by the analysis unit 63 to the designated notification destination according to the notification conditions designated by each analysis rule stored in the rule storage unit 61 .

(A-2) Operation of First Embodiment Next, the operation of data collection status monitoring processing according to the first embodiment will be described.

In the following, for ease of explanation, a case where the monitoring server 6 monitors the sensor data collection status of one sensor will be exemplified. However, the sensor data collection status of each of multiple sensors can be monitored in parallel.

[Flow of operating status data and sensor data]
FIG. 3 is an explanatory diagram showing the flow of operating state data and sensor data according to the first embodiment.

As shown in FIG. 3 , operating state data of each sensor communication terminal 1 and each gateway 2 is transmitted to the monitoring server 6 .

Sensor data observed by a sensor mounted on each sensor communication terminal 1 is transmitted to the data collection server 3 via the gateway 2 and registered. Of the sensor data accumulated in the data collection server 3 , sensor data necessary for state monitoring is transmitted from the data collection server 3 to the monitoring server 6 .

The monitoring data can be acquired by the monitoring server 6 by polling, or by sending a setting control signal to each device at the start of acquisition and periodically acquiring from each device by a push method. However, the method is not limited.

[Sensor data collection status monitoring process]
FIG. 4 is a flow chart showing the operation of the sensor data collection status monitoring process in the monitoring server 6 according to the first embodiment.

[S101] First, in the monitoring server 6, monitoring target information and analysis rules for monitoring the sensor data collection status are set.

An example of setting the monitoring target information will now be described. For example, when a sensor ID for which sensor data is to be acquired is input to the data collection server 3 from the application 4 , the data collection server 3 transfers information including the sensor ID to the monitoring server 6 . As a result, the monitoring server 6 can be notified of the sensor ID of the sensor data used by the application 4 . The monitoring server 6 can set the sensor ID as a monitoring target, and determines the sensor data collection status of the sensor ID according to the analysis rule described later.

Sensor data collection conditions are also input to the monitoring server 6 . The input of the sensor data collection conditions may be set by calling up pre-registered conditions based on the sensor ID, or may be input by the operator based on the sensor ID. That is, it may be automatically input based on the sensor ID, or may be manually input.

The sensor data collection condition is a condition necessary for the monitoring server 6 to determine the collection state of sensor data, and includes, for example, collection time, frequency of sensor data collection, and the like. The collection time indicates the period related to sensor data collection status determination, and the sensor data collection frequency indicates the frequency at which the monitoring server 6 acquires sensor data from the data collection server 3 (for example, how many times per second). . The sensor data collection conditions are not limited to the above as long as they are conditions necessary for the monitoring server 6 to determine the collection status.

Furthermore, information (related monitoring target) related to the sensor data collection of the target sensor ID is also set in the monitoring server 6 . For example, information about each device on the route from the sensor communication terminal 1-N that acquires and transmits the sensor data and the data collection server 3 that collects the sensor data is set.

More specifically, identification information (eg, MAC address, IP address, etc.) of the gateway 2, address information of network devices on the path from the sensor communication terminal 1-N to the data collection server 3, and the like are set. In addition, the identification information (eg, MAC address, etc.) of the sensor communication terminal 1-N equipped with the sensor of the sensor ID, the identification information (eg, MAC address, etc.) of the data collection server 3, and the monitoring server 6 are also set. be done.

In the monitoring server 6 , an analysis rule (sensor data collection state determination rule) is set in the rule storage unit 61 .

[S102] Next, the monitoring data collection unit 62 collects and stores sensor data from the data collection server 3 according to the collection rule among the analysis rules set in the rule storage unit 61. FIG.

For example, for the data collection server 3 that accumulates and manages each sensor data in association with a sensor ID or the like, the monitoring data collection unit 62 provides target sensor data identification information (for example, sensor ID, sensor communication terminal 1- N's identification information, etc.). In response to this, the data collection server 3 transmits the corresponding sensor data, so that the monitoring data collection unit 62 can collect the target sensor data.

[S103] In addition, the related monitoring target collection unit 65 collects operating status data from each device (for example, sensor communication terminal 1-N, gateway 2, data collection server 3, etc.) set as related monitoring targets set in S101. and save.

For example, the related monitoring target collection unit 65 functions as an SNMP (Simple Network Management Protocol) manager or the like, each device functions as an SNMP agent or the like, and the related monitoring target collection unit 65 collects the operating status of each related monitoring target device. It may be managed.

[S104] Based on the sensor data collected by the monitoring data collection unit 62 and the operating state data collected by the related monitoring target collection unit 65, the analysis unit 63 follows the determination rule among the analysis rules of the rule storage unit 61. and analyze the sensor data collection status.

In the monitoring server 6, when the judgment time comes (that is, when the collection time for judging the sensor data collection status has passed), the sensor data necessary for judging the sensor data collection status and the operating status data of each device are required. It is determined whether or not there are as many as If there is no required number, it is determined that the sensor data collection status is not normal (that is, an abnormality has occurred). The determination result is reflected, for example, in the reliability of the sensor data collection state.

[S105] The analysis unit 63 determines the monitoring result of the sensor data according to the determination rule among the analysis rules of the rule storage unit 61.

The analysis unit 63 captures the operating state of each device from the operating state data of each device within a predetermined collection time. As a result, it is analyzed whether the path state of the sensor data in the sensor data collection system 7 is normal or abnormal (for example, whether the sensor communication terminal 1-N, gateway 2, etc. is abnormal). Then, the analysis unit 63 refers to the determination rule based on the analysis result of the operating state data, and reflects it in the reliability of the sensor data collection state.

In addition, the analysis unit 63 analyzes the collection status of the sensor data of the target sensor ID and the temporal transition of the data values within the determination time (collection time). Then, the determination rule is referred to based on the collection state of the sensor data and the analysis result of the transition of the data value of the sensor data, and is reflected in the reliability related to the collection state of the sensor data.

[S106, S107] Then, the monitoring result transmission unit 64 refers to the notification rule in the rule storage unit 61, and sends the notification to the notification destination (for example, the monitor terminal 5, the application 4, the data collection server 3, etc.) specified by the notification rule. , determines whether notification of the determination result is necessary.

Then, when notification of the determination result is necessary, the notification destination (monitor terminal 5, application 4, etc.) according to the notification conditions is notified of the determination result. If notification is unnecessary, the process proceeds to S108.

A method of notifying the supervisor (monitor terminal 5) is not particularly limited. For example, e-mail may be used.

The notification to the application 4 may be sent from the monitoring server 6 to the application 4 . Alternatively, the monitoring server 6 may transmit the data to the data collection server 3, and the data collection server 3 may add the determination result to the sensor data provided to the application 4 and transmit the sensor data to the application.

[S108] Regarding the processing from S102 to S106, if the sensor is activated or the application 4 uses the sensor data, the process proceeds to S102 and repeats the processing.

[Example of sensor data collection status monitoring process]
Next, an example of the sensor data collection status monitoring process will be illustrated along the flowchart of FIG.

Here, the sensor with the target sensor ID senses periodically, and the collection status when each sensor data is collected from the sensor communication terminal 1-N to the data collection server 3 via the gateway 2 is determined.

[S101] In the monitoring server 6, sensor IDs and identification information (for example, MAC addresses) of the sensor communication terminals 1-N are set as monitoring target information. Furthermore, in the data collection server 3, collection conditions such as collection time and collection frequency for collecting sensor data from the sensor communication terminals 1-N are set.

Also, identification information of the gateway 2 to be related and monitored is set in the monitoring server 6 .

Furthermore, analysis rules (sensor data collection state determination rules) are set in the monitoring server 6 . Analysis rules (sensor data collection state determination rules) exemplify cases where the following "collection rules", "determination rules", and "notification rules" are applied. Each of the “collection rule”, the “determination rule”, and the “notification rule” may be one or plural.

Here, a value of 100 is used as a reference for the reliability of sensor data. The confidence value is subtracted if the conditions of the following decision rules are met.
"Collection rule 1": The sensor value (sensor ID) is the sensor connected to the sensor communication terminal 1-N.
“Collection rule 2”: The device status is examined based on the operating status data of the sensor communication terminal 1-N, gateway 2, and data collection server 3.
"Judgment rule 1": If reliability is normal, "100" (reference value).
"Judgment rule 2": If the device state is "1", the data reliability is "0".
"Judgment rule 3": For each data collection error, "10" is subtracted from the normal value (reliability is set to "-10").
"Judgment rule 4": If the data value of the sensor data is equal to or greater than a predetermined value A (in this example, exemplified as "10"), the reliability is further subtracted by "30"("-30" ).
"Notification rule": "If the reliability is 80 or more at the time of the previous judgment and less than 80 at the time of the current judgment, or "If the reliability is less than 80 at the time of the , notifying Application 4.

[S102, S103] The monitoring data collection unit 62 collects target sensor data from the data collection server 3, and the related monitoring target collection unit 65 collects operating status data of each device to be related monitoring targets.

FIG. 5 is an explanatory diagram showing an example of the sensor data collection status and device status according to the first embodiment.

FIG. 5(A) shows changes in device status over time, based on the operating status data of each device to be monitored. Here, if there is an abnormality in any of the target sensor communication terminals 1-N, gateway 2, or data collection server 3, it is set to "1", and if all devices are normal, it is set to "0".

FIG. 5(B) shows transition of the data value of the target sensor data over time. Note that the time axes of FIGS. 5A and 5B are synchronized. Assume that the sensor is sensing 10 times per second. It is assumed that there is a collection error at the points where the curve is interrupted (E1, E2). It is assumed that the application 4 acquires sensor data and uses the amount of variation for one second.

An arrow (FIG. 5(C)) shown between FIGS. 5(A) and 5(B) indicates a period during which the analysis unit 63 determines the sensor data collection state. The sensor data collection status determination period Tn (n is a positive integer) is set to 2 seconds, and the analysis unit 63 determines the collection status based on the device status and sensor data values for the past 2 seconds every second.

For example, a number such as "0" written near an arrow in the determination period T1 indicates the number of sensor data collection errors in the determination period T1. As described above, the sensor senses 10 times per second, so the number of collected errors is known.

[S104, S105] The analysis unit 63 analyzes the collection status of the sensor data in each determination period Tn of two seconds, and determines the reliability of the sensor data for each determination period Tn.

Hereinafter, methods of determining the reliability in some of the determination periods T1 to T9 in FIGS. 5A and 5B will be exemplified. The method of determining whether or not each of the plurality of determination rules conforms is not particularly limited, and each determination rule may be individually determined in order or in parallel. You can judge.

[Determination periods T1 and T8]
For example, in the judgment period T1, the reliability is set to "100" according to "judgment rule 1", and since the device state is "0", there is no subtraction according to "judgment rule 2". Further, since the number of collected errors is "0", there is no subtraction according to "judgment rule 3". Since there is no data value of the sensor data equal to or greater than the predetermined value A (for example, "10"), there is no subtraction according to "judgment rule 4". Therefore, the reliability in the determination period T1 is determined to be "100".

For example, in the judgment period T8, the reliability is set to "100" according to "judgment rule 1", and since the device state is "0", there is no subtraction according to "judgment rule 2". Further, since the number of collected errors is "0", there is no subtraction according to "judgment rule 3". However, since there is sensor data whose data value is equal to or greater than a predetermined value A (for example, "10"), the reliability is subtracted by "30" (set to "-30") according to "judgment rule 4". Therefore, the reliability in the determination period T8 is determined to be "70". Note that the reliability is determined to be "70" during the determination period T9 as well as during the determination period T8.

Here, in both the judgment periods T1 and T8, the device state is normal and no collection error occurs, but it is judged that there is a high possibility that the sensor measured an abnormal value for some reason during the judgment period T8. can be done. In such a case, it is preferable to lower the reliability of the sensor data and provide it to the application 4 .

[Determination periods T2 and T4]
For example, in the determination period T2, the reliability is set to "100" according to "determination rule 1", and since the device state is "0", there is no subtraction according to "determination rule 2". However, at E1, since there is an error in the collection of one sensor data, the reliability is subtracted by "10" according to "judgment rule 3" (that is, "-10"). Since there is no data value of the sensor data equal to or greater than the predetermined value A (for example, "10"), there is no subtraction according to "judgment rule 4". Therefore, the reliability in the determination period T2 is determined to be "90".

For example, in the judgment period T4, the reliability is set to "100" according to "judgment rule 1" when analyzing from the sensor data collection situation in FIG. 5B. In E2, which is the second half of the two-second determination period, there are four sensor data collection errors, so the reliability is subtracted by "40 (=10×4)" according to "determination rule 4". Since there is no data value of the sensor data equal to or greater than the predetermined value A (for example, "10"), there is no subtraction according to "judgment rule 4". However, since the device status in FIG. 5A is "1", the reliability is "0" according to "judgment rule 2". Note that the reliability is determined to be "0" during the determination period T5 as well as during the determination period T4.

Here, the determination period T2 and the determination period T4 in which a collection error occurs in the sensor data collection state are compared.

Although a collection error occurs in both the determination periods T2 and T4, it can be determined that the device state is normal in the determination period T2 and abnormal in the determination period T4. Then, in the determination period T4, it is considered that the sensor data was transferred in an abnormal state or in an unstable state in the device. preferably provided to

As described above, the analysis unit 63 determines the reliability of each determination period according to the analysis rule from transitions of data values of the device state and sensor data. Then, the reliability of the judgment periods T1 to T9 is "100", "90", "90", "0", "0", "100", "100", "70", "70" in order. becomes.

[S106, S107] The monitoring result transmitting unit 64 transmits the determination result (monitoring result) to the notification destination according to the notification rule based on the reliability of each of the determination periods T1 to T9 determined by the analysis unit 63.

That is, by comparing the reliability at the time of the previous determination and the reliability at the time of the current determination, the determination periods T4, T6, and T8 match the notification rule. The application 4 is notified of the monitoring result.

Here, the notification rule may be, for example, "the reliability is 80 or more at the time of the previous determination and less than 80 at the time of the current determination, or "the reliability is less than 80 at the time of the previous determination and at the time of the current determination is greater than or equal to 80", notify Application 4. is intended to inform the application 4 of the point in time when the amount of variation in reliability is large. For example, depending on the operation of the application 4 that uses sensor data, if the amount of variation in reliability is large, the use of sensor data at that time may not be appropriate. Therefore, in the first embodiment, the application 4 is notified when the amount of variation in reliability is large. Note that the reliability value ("80") in the above notification rule is an example, and is not limited to this. Also, the above notification rule is an example, and is not limited to this, and may be determined as appropriate according to the usage of the application 4 .

Application 4 refers to the reliability to determine if sensor data is available. For example, it is possible for the application 4 not to use the sensor data from the section of the determination period T4 in which the device abnormality notification is received until the start of the determination period T6 in which the recovery notification is received. In addition, the application 4 can be prevented from using the sensor data during the judgment periods T8 and T9 in which the device abnormality notification is received again.

(A-3) Effect of the First Embodiment As described above, according to the first embodiment, the sensor data and the operating state of the communication device are input to the monitoring server as the collection status sensor of the sensor data collection system, The sensor data collection status is determined. As a result, since the situation of the entire sensor data collection system is taken into consideration, it is possible to obtain the effect of making it easier to take measures against abnormalities during sensor data collection.

In addition, by providing the application with the collection status of the sensor data as the reliability of the data, it is possible for the application to easily determine whether the sensor data can be used.

(B) Second Embodiment [Basic Concept of Second Embodiment]
For example, depending on the observation cycle of each sensor and the transmission cycle of each sensor communication terminal 1 or gateway 2 (transmission cycle of information including sensor data), etc., the data collection server 3 relays the gateway 2, Many sensor data may be collected at approximately the same timing.

For example, when sensor data from a plurality of sensors are transferred via the same gateway, the processing load on the gateway increases, which may cause anomalies or processing delays. As a result, packets containing sensor data may be lost or lost, and as a result, the sensor data collection situation in the data collection server 3 may be affected.

Therefore, although it is required to adjust the traffic volume of the sensor data collection system 7, the sensor data collection system 7 has a large number of sensor types and sensors. Also, the frequency of data collection is high. Therefore, in order to support the sensor data collection system 7, it is required to consider the sensor data collection status of each sensor.

Therefore, in the second embodiment, taking into account the sensor data collection status of each sensor, it is possible to control data transmission when or before an abnormality occurs in a relay device (for example, a gateway, etc.). It is something to do.

(B-1) Configuration of Second Embodiment Next, a second embodiment of the data collection monitoring device, data collection monitoring method, and data collection monitoring system according to the present invention will be described with reference to the drawings. to explain.

The second embodiment differs from the first embodiment in data collection status monitoring processing by the monitoring server. Therefore, in the second embodiment, the monitoring server will be referred to as a monitoring server 6A, and the detailed description will focus on the data collection status processing by the monitoring server 6A. Note that the second embodiment will also be described with reference to FIG.

As with the monitoring server 6 of the first embodiment, the monitoring server 6A monitors the sensor data collection status of each sensor and determines the collection status judgment value of the target sensor data.

In addition, the monitoring server 6A identifies related monitoring targets that are abnormal or have a large processing load based on the sensor data collection status of each sensor, the path of each sensor data, and the operating status data of related monitoring targets (eg, gateway 2). To detect. Then, control related to sensor data transmission is performed for the sensor or the sensor communication terminal passing through the related monitoring target.

FIG. 6 is an internal configuration diagram showing the internal configuration of the monitoring server 6A according to the second embodiment.

As shown in FIG. 6, the monitoring server 6A includes a rule storage unit 61, a monitoring data collection unit 62, an analysis unit 63, a monitoring result transmission unit 64, a related monitoring target collection unit 65, a route storage unit 66, and an equipment status information storage unit. 67 and a control signal transmitter 68 .

The route storage unit 66 stores the identification information (eg, MAC address, IP address, etc.) of the target sensor communication terminal 1, the identification information (eg, MAC address, IP address, etc.) of the target sensor communication terminal 1 and the identification information (eg, MAC address, IP address etc.), the path information of the sensor data from the sensor communication terminal 1 to the data collection server 3 is stored based on the identification information of the gateway 2 (eg, MAC address, IP address, etc.). When determining the sensor data collection status of a plurality of sensors, the route storage unit 66 stores route information for each sensor. For example, route information in which the sensor communication terminal 1, the gateway 2, and the data collection server 3 are associated with each other may be saved. The sensor communication terminals 1-N using the information in the route storage unit 66 and using the same gateway 2 as a relay share the data in the related monitoring object collection unit 65. FIG.

The device state information storage unit 67 stores state information (device state information) of each device on the route related to sensor data collection of each sensor. The device status information storage unit 67 stores the operating status data of the related monitoring targets collected by the related monitoring target collection unit 65 and the sensor data collection status collected by the monitoring data collection unit 62 . In addition, the information about the device status (see FIG. 5A) and the information about the sensor data collection status (see FIG. 5B) analyzed or in the process of analysis by the analysis unit 63 are also stored.

Then, the device state information storage unit 67 derives and stores the state information of each device using the various types of information as described above. Since real-time information is input to the device status information storage unit 67, the status information of each device is updated sequentially. The device status information of each device is also provided in order to share analysis data used when analyzing the sensor communication terminal 1 using the same gateway 2 as a relay.

As in the first embodiment, the analysis unit 63 determines the reliability of the sensor data based on the sensor data collection status and the device status of the related monitoring target according to the analysis rule. Also, the analysis unit 63 notifies the monitor terminal 5, the application 4, and the like of the monitoring result based on the analysis rule.

The analysis unit 63 also refers to the state information of each device in the device state information storage unit 67 and detects related monitoring targets with a large processing load according to the analysis rule. Then, by referring to the state information of each device in the device state information storage unit 67 and the route information for each sensor in the route storage unit 66, the sensor communication terminal 1 whose route includes the detected related monitoring target is detected. . At this time, a plurality of sensor communication terminals 1 may be detected.

The analysis unit 63 treats the detected sensor communication terminals 1 and gateways 2 as devices to be controlled, and provides the control signal transmission unit 68 with control details according to the analysis rule. As a result, the sensor communication terminal 1 and the gateway 2 to be controlled can be restarted or their settings can be changed. That is, the analysis unit 63 instructs a restart for setting change or initialization in order to change the setting or initialize the control information (firmware) relating to the sensor data transmission process.

The control signal transmission unit 68 converts the control target device and control details determined by the analysis unit 63 into a control signal, and transmits the control signal to the control target device.

(B-2) Operation of Second Embodiment Next, the operation of data collection status monitoring processing according to the first embodiment will be described.

[Sensor data collection status monitoring process]
FIG. 7 is a flow chart showing the operation of the sensor data collection status monitoring process in the monitoring server 6A according to the second embodiment.

Below, the sensor data of a plurality of sensors are collected by the data collection server 3, and the monitoring server 6A monitors the sensor data collection status of the plurality of sensors.

For example, in FIG. 1, the path of the sensor data of the sensor A installed in the sensor communication terminal 1-1 is "sensor communication terminal 1-1"→"gateway 2-1"→"data collection server 3". .

The path of the sensor data of the sensor B of the sensor communication terminal 1-2 is "sensor communication terminal 1-2"→"gateway 2-1"→"data collection server 3". That is, sensors A and B pass through the same gateway 2-1.

The path of the sensor data of the sensor C of the sensor communication terminal 1-3 is assumed to be "sensor communication terminal 1-3"→"gateway 2-2"→"data collection server 3".

[S201] As in the first embodiment, the monitoring server 6A sets monitoring target information and analysis rules for monitoring the sensor data collection status. When multiple sensors are monitored, monitoring target information and analysis rules are set for each sensor.

[S202] Next, the monitoring data collection unit 62 collects and stores sensor data from the data collection server 3 according to the collection rules among the analysis rules set in the rule storage unit 61. FIG.

[S203] The related monitoring target collection unit 65 collects and stores operating status data from each device (for example, sensor communication terminal 1-N, gateway 2, data collection server 3, etc.) set as related monitoring targets set in S101. do. For example, the related monitoring target collection unit 65 functions as an SNMP manager or the like, each device functions as an SNMP agent or the like, and the related monitoring target collection unit 65 manages the operating status of each device of the related monitoring target.

[S 204 ] The device state information storage unit 67 receives operating state data of each device from the related monitoring target collection unit 65 and sensor data from the monitoring data collection unit 62 .

In addition, data obtained by analyzing the sensor data collection state by the analysis unit 63 is also input to the device state information storage unit 67 .

The device status information storage unit 67 stores the status information of each device on the path such as the sensor communication terminal 1 of each sensor and the gateway 2 based on the operating status data of each device to be monitored and the data from the analysis unit 63. to save.

FIG. 8A is a configuration diagram showing an example of state information stored in the device state information storage unit 67 according to the second embodiment. FIG. 8B is a diagram showing route information for each sensor.

In the example of FIG. 8A, the unit time is 1 second. For each sensor communication terminal 1 (1-1 to 1-3), the number of sensor data received by the data collection server 3 per unit time is shown. As for the gateways 2 (2-1, 2-2), the CPU usage rate of each gateway 2 is shown.

Note that the state information managed by the device state information storage unit 67 is not limited to the above example. For example, the number of packet transfers, the number of received packets, the number of reception errors, the number of transmission errors, etc. of the gateway 2 may be used.

In addition, the device state information storage unit 67 may have a machine learning function of referring to past state information of each device and estimating the state after the present time. For example, if there is past history information such as transition data of the number of sensor data transmissions sent by the sensor communication terminal 1-1 (sensor A), the past history information is used to You may estimate the number of sensor data. Alternatively, the number of packets passing through each gateway 2 may be estimated based on past history information such as route information for each sensor and the number of packets for each sensor.

The analysis unit 63 receives the operating state data of each device from the related monitoring target collection unit 65 and the sensor data from the monitoring data collection unit 62 . The analysis unit 63 can also refer to each device state information in the device state information storage unit 67 . Furthermore, the analysis unit 63 can also refer to route information for each sensor stored in the route storage unit 66 .

As in the first embodiment, the analysis unit 63 analyzes changes in data values of sensor data based on collected sensor data, and analyzes device states based on operating state data. When a plurality of sensors are targeted, the transition of the data value of the sensor data and the device status of each sensor are analyzed and monitored.

[S205] The analysis unit 63 refers to the state information of each device (for example, each sensor communication terminal 1 and each gateway 2) stored in the device state information storage unit 67, and selects a related monitoring target corresponding to the analysis rule. Detect (S205).

Here, the analysis rule may include the collection rule, the notification rule, etc. described in the first embodiment, but here, an example of the state determination rule will be exemplified.

The state determination rule includes a condition for specifying that a device to be monitored is in a state where an abnormality has occurred or is likely to occur, and control details when the condition is met.

An example of the state determination rule will be described below. It should be noted that the number of state determination rules may be one, or plural, and the case where two state determination rules are set is exemplified here.
"Status determination rule 1": If the CPU usage rate is 80% or more, a control signal is transmitted to the sensor communication terminal so that the number of times of data transmission is halved for a predetermined time (for example, 3 seconds).
"State determination rule 2": If the number of packets passing through the gateway is 40 or more, a control signal is transmitted to the sensor communication terminal so that the number of data transmissions for a predetermined time (3 seconds) is halved.

Note that the CPU utilization threshold, the threshold for the number of passing packets, the value for the predetermined time, the control value for the number of data transmissions, and the like exemplified in the "state determination rule 1" and the "state determination rule 2" are examples. Yes, but not limited to this.

For example, in the case of the above example, the analysis unit 63 refers to the device state information in FIG. Detect objects.

Also, in the above example, the case of halving the number of data transmissions of the sensor communication terminal is exemplified, but the present invention is not limited to this. The content of the control may be, for example, restarting for failure recovery.

[S206] The analysis unit 63 identifies the sensor communication terminal connected to the related monitoring target device that corresponds to the state determination rule. The analysis unit 63 can identify a sensor having a related monitoring target (for example, the gateway 2) in its route by considering the route information of each sensor. Thereby, the sensor communication terminal 1 to be controlled can be specified.

[S207, S208, S209] The analysis unit 63 notifies the results of determination in accordance with analysis rules (e.g., notification rules) in order to provide the data collection server 3 with the determination results of the processes of S205 and S206.

Here, as in the first embodiment, the notification rule among the analysis rules may define notification conditions including destinations to which determination results are to be notified. For example, as an example of the notification rule, if there are one or more sensors on the route that have a related monitoring target corresponding to the state determination rule, each determination result may be sent to the data collection server 3, or the like.

In addition, in S209, if a plurality of sensors having related monitoring targets on the route can be specified, the determination result of each sensor is notified to the notification destination (for example, the data collection server 3, etc.).

[S210] The analysis unit 63 determines whether or not it is necessary to change the collection setting for each device to be controlled according to the state determination rule.

[S211] Then, if it is necessary to change the collection setting for each device to be controlled according to the state determination rule, the control signal transmission unit receives an instruction from the analysis unit 63 and designates each device to be controlled as a destination. , and transmits a control signal having control contents according to the state determination rule.

[S212] Regarding the processes from S202 to S211, if the sensor is activated, the process proceeds to S202 and repeats the process; otherwise, the process ends.

[Example of processing of S205 to S212]
The processing of S205 to S212 by the analysis unit 63 will be described below in accordance with the passage of time in FIG. 8A.

From the route information in FIG. 8B, the number of packets passing through the gateway 2-1 is the sum of the sensor data numbers of the sensor communication terminals 1-1 and 1-2, and the number of packets passing through the gateway 2-2 The number of packets is the number of sensor data of the sensor communication terminal 1-3.

[Time 1-2]
Since the CPU usage rate of the gateways 2-1 and 2-2 is "20%" during "time 1" to "time 2", "status determination rule 1" does not apply. Also, since the number of packets passing through the gateway 2-1 is "10" and the number of packets passing through the gateway 2-2 is also "10", "state determination rule 2" is not applied (S205). In this case, the notification is unnecessary in S207, and the collection setting change is unnecessary in S209, so the process proceeds to S212.

[Time 3]
At "time 3", the CPU usage rates of gateways 2-1 and 2-2 are "20%" and "50%", so "state determination rule 1" does not apply. Since the number of packets passing through the gateway 2-2 is "10", it does not correspond to the "state determination rule 2".

However, since the number of packets passing through the gateway 2-1 is "40", the "state determination rule 2" applies to the gateway 2-1 (S205).

Then, the analysis unit 63 refers to the route information to identify the sensor communication terminals 1-1 and 1-2 connected to the gateway 2-1 (S206). The determination result of each of the communication terminals 1-1 and 1-2 is transmitted to the notification destination such as the data collection server 3 (S207, S208, S209).

Further, the analysis unit 63 transmits a control signal to both of the sensor communication terminals 1-1 and 1-2 to control the number of sensor data transmissions to 1/2 according to the "state determination rule 2". (S210, S211).

At this time, there are two sensors connected to the gateway 2-1: sensor A (sensor communication terminal 1-1) and sensor B (sensor communication terminal 1-2). Therefore, one of the two sensors A and B is selected, and the control signal is transmitted to the sensor communication terminals of all the sensors in order.

For example, after transmitting the control signal to the sensor communication terminal 1-1 of the sensor A, the control signal may be transmitted to the sensor communication terminal 1-2 of the sensor B. FIG. In order to transmit the control signal, priority may be assigned in advance, and the control signal may be transmitted in order from the sensor (sensor communication terminal) having the higher priority.

The sensor communication terminals 1-1 and 1-2 that have received the above control signals reduce the number of sensor data transmissions to 1/2. As a result, at "Time 4", the number of sensor data in the sensor communication terminals 1-1 and 1-2 is halved, the number of packets passing through the gateway 2-1 is also reduced, and the processing load is reduced.

[Time 4]
At "time 4", the number of packets passing through the gateway 2-1 is "20", which does not correspond to "state determination rule 2". Also, the number of packets passing through the gateway 2-2 is "10" and does not correspond to the "state determination rule 2".

However, since the CPU usage rate of the gateway 2-2 is "90%", it corresponds to the "status determination rule 1" (S205).

Then, the analysis unit 63 refers to the route information to identify the sensor communication terminal 1-3 connected to the gateway 2-2 (S206). 3 is transmitted to the notification destination such as the data collection server 3 (S207, S208, S209).

Furthermore, the analysis unit 63 transmits a control signal to the sensor communication terminal 1-3 to halve the number of sensor data transmissions according to the "state determination rule 1" (S210, S211). .

The sensor communication terminal 1-3 that has received the above control signal reduces the number of sensor data transmissions to 1/2. As a result, at "Time 5", the amount of sensor data in the sensor communication terminal 1-3 is halved, and the processing load on the gateway 2-2 is reduced.

[Time 6] The analysis unit 63 transmits to the sensor communication terminals 1-1 and 1-2 a control signal for resetting the number of transmissions to the initial value according to the state determination rule (S210, S211).

[Time 7] The analysis unit 63 transmits to the sensor communication terminal 1-3 a control signal for resetting the number of transmissions to the initial value according to the state determination rule (S210, S211).

(B-3) Effect of Second Embodiment As described above, according to the second embodiment, by considering the sensor collection state of other sensor communication terminals that use the same gateway as a relay, It is possible to obtain the effect of being able to automatically and properly determine which device is to be controlled.

(C) Other Embodiments Although various modified embodiments have been mentioned in the above-described first and second embodiments, they can also be applied to the following modified embodiments.

(C-1) The first embodiment and the second embodiment may be combined. In other words, in the second embodiment, the control of collection settings from each sensor (sensor communication terminal) was mainly described in consideration of the state of the gateway as a repeater. It is also possible to derive the reliability of the data and transmit the determination result to the notification destination according to the notification rule.

(C-2) In the first and second embodiments described above, the monitoring server monitors the sensor data collection system. You may make it

(C-3) Although the optimum rate is calculated by the monitoring server, the calculation may be performed by a device other than the monitoring server, such as a sensor or gateway.

Also, in the first and second embodiments, the data collection system collects sensor data, but the data to be collected may be applied to data other than sensor data.

10 Data collection status monitoring system 1 (1-1 to 1-3) Sensor communication terminal 2 (2-1, 2-2) Gateway 3 Data collection server 4 Application 5 Monitor terminal 6, 6A... Monitoring server, 61... Rule storage unit, 62... Monitoring data collection unit, 63... Analysis unit, 64... Monitoring result transmission unit, 65... Related monitoring target collection unit, 66... Path storage unit, 67... Equipment State information storage unit, 68 . . . control signal transmission unit.

Claims (12)

A data collection status monitoring device for monitoring the data collection status of a data collection system having one or more data communication terminals and a data collection device for collecting data from each of the data communication terminals,
Related monitoring target information acquisition means for acquiring operating status information of each communication device between each data communication terminal and the data collection device;
Collected data acquisition means for acquiring collected data collected from each of the data communication terminals;
analysis means for analyzing at least the collection status of the collected data in consideration of the operating state of each of the communication devices at the time of data collection by the data collection device, based on the operating state information of each of the communication devices and the collected data; prepared ,
The analysis means captures time fluctuations of the operating state information of each communication device and the collected data, determines the collection status of the collected data, and derives the reliability of the collected data according to the determination result. is something
A data collection situation monitoring device characterized by: 3. The analysis means, at least based on the operating state information of each of the communication devices, evaluates the reliability of the collected data as low when the state of any one of the communication devices is abnormal. 2. The data collection status monitoring device according to 1. 2. The analyzing means evaluates the reliability of the collected data as low when the data value is determined to be abnormal, based on at least the time transition of the data value of the collected data. 3. The data collection status monitoring device according to 2. The analysis means at least evaluates the reliability of the collected data as low when the state of each of the communication devices is abnormal among the collection errors of the collected data based on the time transition of the data values of the collected data. The data collection status monitoring device according to any one of claims 1 to 3 , characterized by: 5. The data collection status monitoring apparatus according to claim 1 , further comprising monitoring result transmission means for transmitting the reliability of said collected data derived by said analysis means to a predetermined notification destination. route information storage means for holding route information of the collected data from each data communication terminal to the data collection device for each collected data;
In the data collection system, collection of operation status information of each of the communication devices existing on the path of each of the collected data collected by the data collection device, and collection of the collected data from each of the data communication terminals that are collection destinations. and device state information storage means for holding the status and
2. The data collection status monitoring apparatus according to claim 1, wherein said analysis means controls collection conditions of said collection data from said each data communication terminal according to operating status information of said each communication device. At least when the collected data from the plurality of data communication terminals are relayed via the same communication device, the analysis means analyzes the collection conditions for each of the plurality of data communication terminals by a predetermined method. 7. The data collection situation monitoring device according to claim 6 , wherein the is changed. The analysis means changes the collection conditions of the data communication terminal, which is the collection destination of the collected data, at least based on a comparison result between the processing load value of each communication device relaying the collected data and a threshold value. 8. The data collection situation monitoring device according to claim 6 or 7 , characterized in that: 6- , wherein said analyzing means changes the collection conditions of said data communication terminal, which is the collection destination of said collected data, based on at least the amount of data or the number of packets passing through each of said communication devices. 9. The data collection situation monitoring device according to any one of 8 . The equipment status information storage means retains information that predicts the collection status after the present time based on the past operating status information of each communication equipment in the data collection system and the past collection status from each data communication terminal. 10. The data collection situation monitoring device according to any one of claims 6 to 9 , characterized in that: A data collection status monitoring method for monitoring the data collection status of a data collection system having one or more data communication terminals and a data collection device for collecting data from each of the data communication terminals,
Related monitoring target information acquisition means acquires operating state information of each communication device between each data communication terminal and the data collection device,
Collected data acquisition means acquires collected data collected from each data communication terminal,
The analysis means analyzes at least the collection status of the collected data based on the operating state information of each communication device and the collected data, taking into consideration the operating state of each communication device at the time of data collection by the data collection device. ,
The analysis means captures time fluctuations of the operating state information of each communication device and the collected data, determines the collection status of the collected data, and derives the reliability of the collected data according to the determination result.
A data collection situation monitoring method characterized by: A data collection status monitoring system for monitoring the data collection status of a data collection system having one or more data communication terminals and a data collection device for collecting data from each of the data communication terminals,
Related monitoring target information acquisition means for acquiring operating status information of each communication device between each data communication terminal and the data collection device;
Collected data acquisition means for acquiring collected data collected from each of the data communication terminals;
analysis means for analyzing at least the collection status of the collected data in consideration of the operating state of each of the communication devices at the time of data collection by the data collection device, based on the operating state information of each of the communication devices and the collected data; prepared ,
The analysis means captures time fluctuations of the operating state information of each communication device and the collected data, determines the collection status of the collected data, and derives the reliability of the collected data according to the determination result. is something
A data collection situation monitoring system characterized by:

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