JP2021033630A - Monitoring system, monitoring method in monitoring system, and monitoring program in monitoring system - Google Patents

Abstract

To reduce power consumption more than before.SOLUTION: A monitoring system includes detection devices 2A, 2B, 2C for transmitting measurement results by sensors 11, 12, 13, and a monitoring device 5 for performing data communication with the detection devices 2A, 2B, 2C by radio communication to acquire the measurement results transmitted by the detection devices 2A, 2B, 2C. The monitoring device 5 determines the measurement results transmitted from the detection devices 2A, 2B, 2C according to a determination reference value, and varies a measurement period by the sensors 11, 12, 13 in the detection devices 2A, 2B, 2C on the basis of a determination result.SELECTED DRAWING: Figure 1

Description

The present invention relates to a monitoring system, a monitoring method in the monitoring system, and a monitoring program in the monitoring system. For example, the present invention is applied to a configuration in which a plurality of detection devices are installed in each part of a plant and the plant is monitored by the measurement results of these detection devices. Can be done.

Conventionally, with respect to a monitoring system, for example, a device has been proposed in which a plurality of detection devices are installed in each part of a plant and the plant is monitored based on the measurement results of these detection devices (Patent Document 1).
In such a monitoring system, the detection device is driven by the power supply of the battery, thereby improving the degree of freedom of installation.

Japanese Unexamined Patent Publication No. 2006-209594

By the way, in this kind of monitoring system, it is desired to reduce power consumption. In particular, in a configuration in which the detection device is driven by a battery power source, it is desired to reduce the frequency of battery replacement and simplify maintenance by reducing power consumption.

The present invention has been made in consideration of the above points, and an object of the present invention is to propose a monitoring system capable of reducing power consumption as compared with the conventional one, a monitoring method in the monitoring system, and a monitoring program in the monitoring system. To do.

In order to solve the problem, the invention of claim 1 is
A monitoring system including a detection device that sends out measurement results by a sensor and a monitoring device that communicates data with the detection device by wireless communication and acquires the measurement results sent from the detection device.
The monitoring device is
The measurement result sent from the detection device is determined based on the determination reference value, and the measurement cycle by the sensor in the detection device is changed based on the determination result.

According to the configuration of claim 1, by varying the measurement cycle in the detection device based on the determination result of the measurement result, when the necessity of monitoring is low, the measurement cycle is lengthened to reduce power consumption. When the need for monitoring is high, it is possible to acquire measurement results with a sufficient measurement cycle and perform monitoring without omissions, which makes it possible to reduce power consumption as compared with the conventional case.

The invention of claim 2 has the configuration of claim 1.
The measurement results sent from the detection device are a plurality of measurement results obtained from a plurality of sensors.
The monitoring device is
When the plurality of measurement results are judged by the corresponding determination reference values and all of the plurality of measurement results are determination results with low need for monitoring, any one of the plurality of measurement results is monitored. The measurement cycle is set longer than when the determination result is highly necessary.

According to the configuration of claim 2, the measurement results by a plurality of sensors are collectively processed, and for example, when any of the plurality of sensor installation locations is operating, the measurement results are processed with a sufficient measurement cycle. It is possible to extend the measurement cycle and reduce power consumption when all of the multiple sensor installation locations are not in operation by acquiring and executing monitoring without omission.

The invention of claim 3 has the configuration of claim 1.
The measurement results sent from the detection device are a plurality of measurement results obtained from a plurality of sensors.
The monitoring device is
The plurality of measurement results are determined by the corresponding determination reference values, and the measurement cycle by the corresponding sensor is changed for each determination result.

According to the configuration of claim 3, the measurement cycle can be changed for each sensor to further reduce the power consumption.

The invention of claim 4 has the configuration of any one of claims 1, 2, and 3.
The determination reference value in the monitoring device is a determination reference value used for determining whether or not the equipment is in operation.

According to the configuration of claim 4, when the equipment is not in operation, the measurement cycle can be lengthened to reduce wasteful power consumption.

The invention of claim 5 has the configuration of any one of claims 1, 2, 2, 3 and 4.
The monitoring device accepts the setting of the determination reference value.

According to the configuration of claim 5,
Power consumption can be reduced by flexibly responding to the system configuration and system installation environment.

The invention of claim 6 is
It is a monitoring method in a monitoring system including a detection device that sends out a measurement result by a sensor and a monitoring device that communicates data with the detection device by wireless communication and acquires the measurement result sent from the detection device.
In the detection device
The measurement result sent from the detection device is determined based on the determination reference value, and the measurement cycle by the sensor in the detection device is changed based on the determination result.

According to the configuration of claim 6, by varying the measurement cycle in the detection device based on the determination result of the measurement result, when the necessity of monitoring is low, the measurement cycle is lengthened to reduce power consumption. When the need for monitoring is high, it is possible to acquire measurement results with a sufficient measurement cycle and perform monitoring without omissions, which makes it possible to reduce power consumption as compared with the conventional case.

The invention of claim 7 is
A monitoring program in a monitoring system that executes a predetermined processing procedure by execution by an arithmetic processing circuit.
The monitoring system includes a detection device that sends out a measurement result by a sensor, and a monitoring device that communicates data with the detection device by wireless communication and acquires the measurement result sent from the detection device.
The processing procedure is
The detection device includes a measurement cycle variable step that determines the measurement result sent from the detection device based on a determination reference value and changes the measurement cycle of the sensor in the detection device based on the determination result.

According to the configuration of claim 7, by varying the measurement cycle in the detection device based on the determination result of the measurement result, when the necessity of monitoring is low, the measurement cycle is lengthened to reduce power consumption. When the need for monitoring is high, it is possible to acquire measurement results with a sufficient measurement cycle and perform monitoring without omissions, which makes it possible to reduce power consumption as compared with the conventional case.

According to the present invention, power consumption can be reduced as compared with the conventional case.

It is a figure which shows the monitoring system which concerns on 1st Embodiment of this invention. It is a figure which provides the explanation of the setting in the monitoring system of FIG. It is a time chart which provides the explanation of the determination by the setting of FIG. It is a block diagram which provides the explanation of the operation in the monitoring system of FIG. It is a time chart which provides the explanation of the operation in the monitoring system of FIG. It is a chart which provides the explanation of the setting in the monitoring system which concerns on 2nd Embodiment of this invention. It is a time chart which provides the explanation of the determination by the setting of FIG. It is a block diagram which provides the explanation of the operation in the monitoring system which concerns on the setting of FIG. It is a time chart which provides the explanation of the operation in the monitoring system which concerns on the setting of FIG.

[First Embodiment]
〔overall structure〕
FIG. 1 is a diagram showing a monitoring system according to the first embodiment of the present invention. In this monitoring system 1, for example, a plurality of detection devices 2A, 2B, and 2C are installed in each part of the plant, and the measurement results of each part are measured from the detection devices 2A, 2B, and 2C by data communication with these detection devices 2A, 2B, and 2C. It is a monitoring system that monitors the plant by acquiring the data.

This monitoring system 1 includes detection devices 2A, 2B and 2C installed in each part of the plant, relay devices 3A and 3B for relaying data communication between the detection devices 2A, 2B and 2C, and detection devices 2A, 2B and 2C. A monitoring device 5 that monitors the detection devices 2A, 2B, and 2C by data communication with the detection device 2A, 2B, and 2C is provided. Further, the monitoring device 5 includes a user terminal device 6 for notifying the user of the monitoring result, a network construction device (NW construction device) 7, a network construction device (NW construction device) 7, for constructing a network by wireless communication with the detection devices 2A, 2B, 2C and the relay devices 3A, 3B. It includes a data monitoring device 8 that monitors data from the detection devices 2A, 2B, and 2C acquired via the construction device 7.
The monitoring system according to the present invention is not limited to such plant monitoring, and can be widely applied to various monitoring systems.
Further, in the example of FIG. 1, although an example in which three detection devices 2A, 2B and 2C and two relay devices 3A and 3B are provided is shown, the number of detection devices and the number of relay devices are different. If there is, it can be set in various ways, and the relay device may be omitted.

The detection devices 2A, 2B, and 2C are operated by the built-in battery, and various measurement results are acquired and transmitted by the sensors 11, 12, and 13, respectively. Here, in the monitoring system 1, a temperature detection sensor, an acceleration sensor, and the like that can be connected to the detection devices 2A, 2B, and 2C are prepared, and the detection devices 2A, 2B, and 2C are desired sensors. It is configured so that 11, 12, and 13 can be connected. The detection devices 2A, 2B, and 2C drive the connected sensors 11, 12, and 13 to acquire the measurement results at the measurement cycle instructed by the monitoring device 5, and send the measurement results to the monitoring device 5.
The detection devices 2A, 2B, and 2C are configured to function as relay devices, whereby the monitoring system 1 secures a plurality of routes capable of data communication with the monitoring device 5 and is configured to enable stable data communication. To.

The relay devices 3A and 3B are devices that relay data communication between the detection devices 2A, 2B, 2C and the monitoring device 5, and various configurations corresponding to the wireless communication method and the data communication method of the monitoring system 1 are widely applied. be able to.

The monitoring device 5 sends various control data to the relay devices 3A, 3B, the detection devices 2A, 2B, and 2C to control the operations of the relay devices 3A, 3B, the detection devices 2A, 2B, and 2C, and further, the relay device. The operation of the detection devices 2A, 2B, and 2C is monitored, and the data transmitted from the detection devices 2A, 2B, and 2C is processed.

That is, in the monitoring device 5, the network construction device 7 constructs a network by wirelessly communicating with the detection devices 2A, 2B, 2C, and the relay devices 3A, 3B, and the data to be used for this data communication is transmitted to and from the data monitoring device 8. Input / output.

The data monitoring device 8 records and holds data from the detection devices 2A, 2B, and 2C input from the network construction device 7, further processes the data, and provides the data to the user by the user terminal device 6. The network construction device 7 and the data monitoring device 8 may be integrally configured.
The user terminal device 6 displays the measurement results by the detection devices 2A, 2B, and 2C, and the processing by the data monitoring device 8. Further, the user terminal device 6 displays various setting screens by the user's operation and notifies the data monitoring device 8 of the user's operation, thereby setting the monitoring system 1 in various ways. As the user terminal device 6, various information terminal devices connected to the data monitoring device 8 by wire or wireless can be widely applied, and for example, a personal computer, a smartphone, or the like can be applied.

[Judgment of measurement results]
In the monitoring system 1, various settings are received by the data monitoring device 8 provided in the monitoring device 5 by operating the user terminal device 6. Based on this setting, the monitoring system 1 sets the measurement cycle of the detection devices 2A, 2B, and 2C by the data monitoring device 8 provided in the monitoring device 5, and further, the measurement result by the detection devices 2A, 2B, and 2C. To process.

Further, in this series of settings, in the monitoring system 1, the data monitoring device 8 provided in the monitoring device 5 determines the measurement results sent from the detection devices 2A, 2B, and 2C based on the determination reference values, and based on the determination results. When the measurement cycle of the sensors 11, 12, and 13 in the detection devices 2A, 2B, and 2C is changed by the data monitoring device 8 provided in the monitoring device 5, and the necessity of monitoring the measurement result is low. The measurement cycle by the sensors 11, 12, and 13 is lengthened to reduce power consumption, and when the need for monitoring is high, the measurement result is acquired with a sufficient measurement cycle. By lengthening the measurement cycle in this way, it is possible to reduce the power consumption used for the measurement, and it is possible to reduce the data communication frequency related to the measurement result and reduce the power consumption. This makes it possible to perform leak-free monitoring and reduce power consumption.

In this embodiment, the situation where the equipment at the installation location of the detection devices 2A, 2B, and 2C is not operating is determined to be the case where the necessity of monitoring the measurement result is low, and the measurement cycle by the sensors 11, 12, and 13 is lengthened. To reduce power consumption. In addition, the operating status of the equipment at this installation location is judged to be a case where monitoring is highly necessary, and the measurement results are acquired with a sufficient measurement cycle.

Further, in the monitoring system 1, a plurality of sensors 11, 12, and 13 are provided in one detection device 2A, 2B, and 2C, and all of the plurality of measurement results obtained from the plurality of sensors 11, 12, and 13 are obtained. If the determination result has a low need for monitoring, the measurement cycle by the plurality of sensors 11, 12, and 13 is set to be long.
As a result, the measurement results of the plurality of sensors 11, 12, and 13 are collectively processed, and when any of the plurality of sensor installation locations is in operation, the measurement results are acquired with a sufficient measurement cycle. If leak-free monitoring is performed and all of the multiple sensor installation locations are not in operation, the measurement cycle can be lengthened to reduce power consumption.
The determination of the measurement result and the variable measurement cycle can be executed by each part of the monitoring device 5, and may be executed by the network construction device 7 and the user terminal device 6.

FIG. 2 is a chart provided for explaining the setting of the measurement cycle according to the first embodiment. In FIG. 2, the detection device ID and the sensor ID are shown by the reference numerals provided in FIG.
In the monitoring system 1, the detection device provided with the variable measurement cycle is provided with the information for specifying the detection device (detection device ID) for which the measurement cycle is variable and the information for identifying the sensor connected to the detection device (sensor ID). For each sensor, the setting of the lower limit value and the upper limit value for judging the stopped state of the equipment at the sensor installation location is accepted, and the measured value included in the range of the lower limit value and the upper limit value is judged as the measured value in the stopped state of the equipment. .. Further, the measured value not included in the range of the lower limit value and the upper limit value is determined as the measured value of the equipment operating state.

In the monitoring device 5, the data monitoring device 8 accepts the setting of the lower limit value and the upper limit value by the operation by the user terminal device 6, and further receives the setting of the measurement cycle in the equipment stop state and the equipment operation state.

FIG. 3 is a diagram for explaining the processing of the measurement result by the lower limit value and the upper limit value set in this way.
In the monitoring system 1, in the data monitoring device 8, the measured values by the sensors 11, 12, and 13 that are sequentially input are determined by the lower limit value L1 and the upper limit value L2, and for example, at the time point t1, all the sensors 11, 12, and 13 are used. When it is determined that the equipment is stopped, the measurement cycle T1 (5 minutes) of the sensors 11, 12, and 13 up to that point is set to the measurement cycle T2 (30 minutes). Further, when the measurement cycle T2 (30 minutes) by the sensors 11, 12, and 13 is set in this way and any of the measurement results by the sensors 11, 12, and 13 is determined to be the equipment operating state, the sensors 11, 12, The measurement cycle according to 13 is returned to the original measurement cycle T1 (5 minutes).

FIG. 4 is a block diagram for explaining a series of processes related to the variable measurement cycle (variable step of the measurement cycle), and FIG. 5 is a time chart.
In the monitoring system 1, the lower limit value, the upper limit value, and the measurement cycle are set by the data monitoring device 8 by operating the user terminal device 6 (S1). Further, the measurement results from the detection devices 2A, 2B, and 2C are acquired by the data monitoring device 8 via the network construction device 7 (S2, S3), and are judged and detected by the lower limit value and the upper limit value L1 and L2 of the judgment reference value. Detects a state transition (stop, operation transition) in the equipment at the equipment installation location (S4).

Here, either when the transition to the equipment stop state is detected in the measurement results by all the sensors provided in one detection device, or from the state where the measurement results by all the sensors are determined to be the equipment stop state. When a transition to the equipment operating state is detected in the detection result of the sensor, a command for changing the measurement cycle is sent to the corresponding detection device via the network construction device 7 (S5, S6), thereby performing the corresponding detection. In the device 2A, the measurement cycles of the sensors 11, 12, and 13 are changed (S7), and the system management information is updated in the data monitoring device 8 so as to correspond to the changes (S7).
As a result, the detection device 2A acquires and sends out the measurement results by the sensors 11, 12, and 13 in this changed measurement cycle.

According to the above configuration, by changing the measurement cycle in the detection device based on the judgment result of the measurement result, when the necessity of monitoring is low, the measurement cycle is lengthened to reduce the power consumption and monitor. When there is a high need for the above, it is possible to acquire the measurement results with a sufficient measurement cycle and perform monitoring without omissions, which makes it possible to reduce power consumption as compared with the conventional case.

Further, when a plurality of measurement results sent from the terminal device are judged by the corresponding judgment reference values and all of the plurality of measurement results obtained as a result are judgment results with low need for monitoring, the measurement cycle is set. By setting it longer, the measurement results from multiple sensors can be processed together. For example, if any of the multiple sensor installation locations is operating, the measurement results can be acquired with a sufficient measurement cycle. When all of the multiple sensor installation locations are not in operation by performing leak-free monitoring, the measurement cycle can be lengthened to reduce power consumption.

Further, since the judgment reference value in this monitoring device is a judgment reference value used for judging whether or not the equipment is in operation, the measurement cycle is set when the equipment with low need for monitoring is not in operation. It can be lengthened to reduce wasteful power consumption.

Further, by accepting the setting of the determination reference value, it is possible to flexibly respond to the system configuration, the installation environment of the system, and the like, and reduce the power consumption.

[Second Embodiment]
Similar to the monitoring system 1 according to the first embodiment, the monitoring system 1 in this embodiment is designed to change the measurement cycle in the detection device based on the determination result of the measurement result, and the variable measurement cycle is sensored. Execute every time.
The monitoring system of this embodiment is configured to be the same as the monitoring system of the first embodiment except for the configuration related to the variable measurement cycle. Therefore, in the following, the configuration of FIG. 1 will be appropriately diverted and described. To do.

That is, as shown in FIG. 6 in comparison with FIG. 2, in the second embodiment, the data monitoring device 8 provided in the monitoring device 5 accepts the setting of the measurement cycle during equipment operation and equipment stop for each sensor. ..

Further, as shown in FIG. 7 in comparison with FIG. 3, in the data monitoring device 8, the measurement result is determined by the lower limit value L1 and the upper limit value L2 corresponding to each of the sensors 11, 12 and 13, respectively, and the measurement result is the lower limit respectively. When it is included in the range of the value L1 and the upper limit value L2, the measurement cycle of the corresponding sensor is set to the measurement cycle when the equipment is stopped.
That is, in the example of FIG. 7, for the sensor 11, when the measurement result is included in the range of the lower limit value L1 and the upper limit value L2 at the time point t11, the measurement cycle is changed from the previous measurement cycle T11 to the measurement when the equipment is stopped. The cycle is set to T21. Regarding the sensor 12, when the measurement result is included in the range of the lower limit value L1 and the upper limit value L2 at the time point t11, the measurement cycle is set from the previous measurement cycle T12 to the measurement cycle T22 when the equipment is stopped. On the other hand, with respect to the sensor 13, since the measurement result is not included in the range of the lower limit value L1 and the upper limit value L2 at any time in the example of FIG. 3, the measurement by the measurement cycle T13 up to that point is continued. ..

8 and 9 are a block diagram and a time chart for explaining the setting of the measurement cycle in comparison with FIGS. 4 and 5.
In the monitoring system 1 of this embodiment, the setting of the lower limit value, the upper limit value, and the measurement cycle is acquired by the data monitoring device 8 by the operation of the user terminal device 6 for each sensor (S11). Further, the measurement results from the detection devices 2A, 2B, and 2C are acquired by the data monitoring device 8 via the network construction device 7 (S12, S13), and are judged by the lower limit value and the upper limit value L1 and L2 of the judgment reference value, and the sensor. The state transition (stop, operation transition) of the equipment at the installation location is detected for each sensor (S14).

When a state transition is detected here, a command for changing the measurement cycle is sent to the corresponding detection device via the network construction device 7 (S15, S16), whereby the measurement cycle in the corresponding sensor is changed (S15, S16). S17), and the system management information is updated in the data monitoring device 8 so as to correspond to this (S18).
As a result, the detection device 2A acquires and sends out the measurement results by the sensors 11, 12, and 13 in this changed measurement cycle.

According to this embodiment, the power consumption can be further reduced by changing the measurement cycle for each sensor based on the determination result.

[Other Embodiments]
Although the specific configuration suitable for carrying out the present invention has been described in detail above, the present invention can be variously modified in the configuration of the above-described embodiment without departing from the spirit of the present invention.

That is, in the above-described embodiment, the case where the determination reference value is set so as to lengthen the measurement cycle while the equipment is stopped has been described, but the present invention is not limited to this, and the determination is made according to, for example, the operating rate of the equipment. By setting the reference value, the determination reference value may be set according to the operating condition of the equipment. Further, for example, when the change in the measurement result is small, the judgment reference value may be set sequentially based on the immediately preceding measurement result so as to lengthen the measurement cycle, and various methods may be used to set the judgment reference value. It can be widely applied.

The monitoring system 1 may have, for example, a power saving mode, and the above embodiment may be applied when the power saving mode is effective.

1 Monitoring system 2A, 2B, 2C detection device 3A, 3B relay device 5 Monitoring device 6 User terminal device 7 Network construction device 8 Data monitoring device 11, 12, 13 Sensors

Claims (7)

A monitoring system including a detection device that sends out measurement results by a sensor and a monitoring device that communicates data with the detection device by wireless communication and acquires the measurement results sent from the detection device.
The monitoring device is
A monitoring system that determines the measurement result sent from the detection device based on a determination reference value, and changes the measurement cycle of the sensor in the detection device based on the determination result. The measurement results sent from the detection device are a plurality of measurement results obtained from a plurality of sensors.
The monitoring device is
When the plurality of measurement results are judged by the corresponding determination reference values and all of the plurality of measurement results are determination results with low need for monitoring, any one of the plurality of measurement results is monitored. The monitoring system according to claim 1, wherein the measurement cycle is set longer than when the determination result is highly necessary. The measurement results sent from the detection device are a plurality of measurement results obtained from a plurality of sensors.
The monitoring device is
The monitoring system according to claim 1, wherein the plurality of measurement results are determined by the corresponding determination reference values, and the measurement cycle is changed by the corresponding sensor for each determination result. The monitoring system according to any one of claims 1, 2, and 3, wherein the determination reference value in the monitoring device is a determination reference value used for determining whether or not the equipment is in operation. The monitoring system according to any one of claims 1, 2, 2, 3, and 4, which accepts the setting of the determination reference value. A monitoring method in a monitoring system including a detection device that sends out measurement results by a sensor and a monitoring device that communicates data with the detection device by wireless communication and acquires the measurement results sent from the detection device.
In the detection device
A monitoring method in a monitoring system in which the measurement result sent from the detection device is determined based on a determination reference value, and the measurement cycle by the sensor in the detection device is changed based on the determination result. A monitoring program in a monitoring system that executes a predetermined processing procedure by execution by an arithmetic processing circuit.
The monitoring system includes a detection device that sends out a measurement result by a sensor, and a monitoring device that communicates data with the detection device by wireless communication and acquires the measurement result sent from the detection device.
The processing procedure is
In a monitoring system, the detection device includes a measurement cycle variable step that determines the measurement result sent from the detection device based on a determination reference value and changes the measurement cycle of the sensor in the detection device based on the determination result. Monitoring program.

Images