JP5931190B2 - Communication apparatus and data collection method - Google Patents

Description

This application claims the priority of Japanese Patent Application No. 2012-112090 filed on May 16, 2012, and is incorporated herein by reference.

  The present invention relates to a communication apparatus and a data collection method for collecting data from devices existing on a network.

  In recent years, energy conservation at the national level has been demanded as a measure against global warming. For this purpose, factories and business buildings have factory energy management systems (FEMS) and building energy management systems (BEMS) that monitor energy within the facility using various sensors. It is being introduced.

  For example, as shown in the schematic configuration diagram of the BEMS described in Patent Document 1 (paragraphs 0014-0018), it is common to use a PC as a device for monitoring various sensors (in Patent Document 1, a central monitoring device, And energy monitoring device). However, since a general PC is not equipped with a function for countermeasures against instantaneous power failure, there is a problem that information collection from a sensor cannot be performed when an instantaneous power failure occurs.

  As a method for solving the above problems, it is conceivable to use a dedicated device with a measure against instantaneous interruption. However, the amount of memory that can be installed in an embedded device such as a dedicated device is limited by the fact that only a small amount of memory can be installed for cost reasons, so it is not possible to collect information from sensors for a long time. Occurs. As a method for solving this problem, as described in Patent Document 2 (paragraphs 0006-0010) and Patent Document 3 (paragraphs 0015-0018), the USB IF is mounted on the dedicated device, and the shooting data collected by the dedicated device is collected. And the like are stored in a USB memory appropriately inserted into the USB IF. According to this method, even in a dedicated device that can mount only a small-capacity memory, it is possible to collect information from the sensor for the USB memory capacity.

  Furthermore, even when the capacity of the USB memory becomes insufficient by storing the data in the USB memory for a long time by using the technique of Patent Document 2 and the technique of Patent Document 3, depending on the type of data, Only necessary data can be stored in the USB memory by performing processing such as selection and processing of data to be stored.

JP 2007-199783 A JP 2002-237141 A JP 2011-28606 A

  In a system that collects data from power monitoring devices that exist on the network, such as a power monitoring system, the number of power monitoring devices, the type of collected data, and the capacity of the external memory that stores the collected data differ from system to system. In addition, the operation period of the system is determined depending on the capacity of the external memory, and the operation conditions at the time of data collection differ from system to system. Therefore, in a system that collects data from a power monitoring device or the like that exists on the network, such as a power monitoring system, it is necessary to collect data at an appropriate timing in consideration of different operating conditions at the time of data collection for each system. .

  However, the techniques of Patent Document 2 and Patent Document 3 only disclose a technique related to processing inside the apparatus such as a camera, and consider the operation conditions at the time of data collection that differ for each system as described above at an appropriate timing. It does not describe the technology to collect data. Further, in Patent Document 3, there is a limit on the number of log data to be stored in the memory of the device (hereinafter referred to as internal memory), and when the number of log data to be stored is exceeded when a USB memory is not inserted. A technique for sequentially deleting old data is described. Therefore, there is a possibility that even the data desired by the user is deleted from the data stored in the internal memory. If the user wants all data, the user needs to insert the USB memory at the timing when the number of log data to be stored reaches the upper limit. However, since the user does not know when to insert the USB memory, it is difficult to acquire all the data.

  In view of such circumstances, the present invention is a system that collects data from a power monitoring device or the like that exists on a network, such as a power monitoring system. It aims at providing the technology which collects data at timing.

  A typical example of the present invention is as follows. That is, the communication device according to the present invention is a communication device connected to a plurality of monitoring devices, and includes setting data and collected data attribute information relating to the operating conditions of the communication device including data collected from the monitoring device in advance. The data collection mode is determined based on the storage device and the setting data, and the communication timing with each of the plurality of monitoring devices or the plurality of monitoring devices is collected according to the determined data collection mode And an arithmetic processing unit that calculates the type of data using the setting data and the collected data attribute information and stores the result in the storage device.

  In a system that collects data from a power monitoring device or the like that exists on a network, such as a power monitoring system, data collection can be performed at an appropriate timing in consideration of operating conditions at the time of data collection that differ from system to system. Other objects, features and advantages of the present invention will become apparent from the following description of embodiments of the present invention with reference to the accompanying drawings.

It is a figure which shows the structural example of the electric power monitoring system in embodiment of this invention. It is a figure which shows the structural example of the communication module unit in embodiment of this invention. It is a figure which shows the structural example of the electric power monitoring unit in embodiment of this invention. It is a figure which shows the structural example of the collection data attribute information in embodiment of this invention. It is a figure which shows the structural example of the setting data in embodiment of this invention. It is a figure which shows the structural example of the communication timing table in embodiment of this invention. It is a flowchart which shows the process at the time of power activation in embodiment of this invention. It is a flowchart which shows the detail of the calculation process of the communication timing in embodiment of this invention. Similarly, it is a flowchart showing details of calculation processing of communication timing in the embodiment of the present invention. It is a flowchart which shows the process of the communication module unit after power activation in embodiment of this invention. It is a figure which shows the specific example of the collection data attribute information in embodiment of this invention. It is a figure which shows the specific example of the setting data in embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the drawings describing the embodiment of the present invention, the same parts are denoted by the same reference numerals, and repeated description thereof will be omitted.

  FIG. 1 is a diagram illustrating a configuration of a power monitoring system according to an embodiment of the present invention.

  The power monitoring system is a system configured to include a collection device that collects data such as voltage, current, and electric energy (hereinafter referred to as collection data) such as the PC 100 and the power monitoring unit (monitoring device) 120. Applicable to FEMS (Factory Energy Management System) and BEMS (Building and Energy Management System).

  For data transmission / reception between the PC 100 and the power monitoring unit 120, a communication protocol for serial communication, a communication protocol for Ethernet (registered trademark) communication, and a communication protocol for wireless communication are used. Particularly in the power monitoring system, there are Modbus (registered trademark) as a communication protocol for serial communication, ZIGBEE (registered trademark) and the like as a communication protocol for wireless communication.

  In general, in the power monitoring system, the PC 100 collects collected data from each power monitoring unit 120 via the communication path 110 using the communication protocol described above. However, since the general-purpose PC 100 does not have a measure against instantaneous power failure, there is a problem in that collected data cannot be collected when a power failure occurs.

  In order to solve the above problems, in this embodiment, a communication module unit (communication device) 130 equipped with a measure against instantaneous power failure is installed in the system instead of the PC 100. However, since the communication module unit 130 is an embedded device unlike the PC 100, it is difficult to mount a large capacity memory or a storage device.

  Therefore, in this embodiment, a system capable of collecting collected data for a long period of time is provided for the communication module unit 130 in which a large-capacity memory or a storage device cannot be mounted, as in the case of the PC 100.

  FIG. 2A is a diagram illustrating a configuration example of the communication module unit 130.

  The communication module unit 130 includes a hardware module 200, a storage device 210, an OS 220, and a software module 230.

  The hardware module 200 is hardware necessary for operating the communication module unit 130, and includes a microcomputer 201, a USB IF 202, an LED 203, a communication IF 204, a timer 205, and a switch 206.

  The microcomputer 201 is a module including a CPU, ROM, RAM, and nonvolatile memory.

  The USB IF 202 is an interface for inserting an external memory equipped with a USB IF, for example, a USB memory.

  The LED 203 is an interface that notifies the user of the state of the communication module unit 130. For example, when the LED 203 is lit in blue, it indicates normal operation, and when the LED 203 is lit in red, there is an abnormality in the communication module unit 130. A liquid crystal panel is used instead of the LED 203. Thus, the state of the communication module unit 130 may be notified to the user.

  The communication IF 204 is an interface for performing data communication with each power monitoring unit 120, and corresponds to a serial interface, an internet interface, a wireless communication interface, and the like.

  The timer 205 is a module used to measure the time when data is collected periodically from each power monitoring unit 120.

  The switch 206 is a module used by the user to switch the operation mode of the power monitoring unit 120. For example, depending on the state of the switch 206, a data collection mode (hereinafter referred to as a normal operation state mode) or a USB IF 202 is used. A data storage mode for storing the collected data stored in the storage device 210 in the external memory, a setting data storage mode for storing the setting data in the external memory indicating the setting of the communication module unit 130, and the like. Enables operation mode switching. Instead of the switch 206, a configuration in which the user switches the operation mode using a liquid crystal panel may be used.

  The storage device 210 is configured by a medium such as a nonvolatile semiconductor memory or a magnetic storage medium, and stores collected data attribute information 211, setting data 212, a communication timing table 213, collected data 214, and the like.

  FIG. 3A is a diagram illustrating a configuration example of the collected data attribute information 211. The collected data attribute information 211 is a table indicating information related to collected data collected by the communication module unit 130 from the power monitoring unit 120. The collected data item 300 indicating the data item to be collected and data of the data indicated by the collected data item 300 A data size 301 indicating the size, a default priority 302 of each collected data necessary for obtaining communication timing described later, and the like are configured.

  In addition to the collected data item 300, the data size 301, and the default priority 302, the default collection interval indicating the default value of the interval for collecting the data indicated by the collected data item 300 and the default value of the storage destination of the collected data are indicated. A configuration including a default storage destination may be used.

  FIG. 3B is a diagram illustrating a configuration example of the setting data 212.

  The setting data 212 is a table that stores data indicating the operating conditions necessary for the operation of the communication module unit 130. The number of connected devices 310, the data collection interval 311, the collection data 312 with priority 1, the data with priority 2 The collected data 313, the collected data 314 with priority 3, the collected data 315 with priority N, the collected mode 316, the data storage destination 317, the external memory capacity 318, the operation period 319 of the communication module unit 130, and the like are configured.

  The number of connected devices 310 is an item indicating the number of power monitoring units 120 that the communication module unit 130 collects data.

  The data collection interval 311 is an item indicating the interval at which the communication module unit 130 collects data from each power monitoring unit 120.

  The priority 1 collection data 312, the priority 2 collection data 313, the priority 3 collection data 314, and the priority N collection data 315 are data types prioritized by the communication module unit 130 from each power monitoring unit 120. This is an item indicating the degree, and the smaller the priority value, the more preferentially collected data type.

  In the collection mode 316, when the communication module unit 130 collects data from each power monitoring unit 120, it operates in the collected data priority mode that prioritizes the type of data to be collected, or the collection that prioritizes the data collection interval. This item indicates whether to operate in the interval priority mode.

  The data storage destination 317 is an item indicating whether the collected data collected by the communication module unit 130 from each power monitoring unit 120 is stored in an external memory or in the internal memory of the communication module unit 130.

  The external memory capacity 318 is an item indicating the capacity of the external memory to be stored when the collected data is stored in the external memory at the data storage destination 317.

  The operation period 319 is an item indicating a period during which the communication module unit 130 operates in each item of the setting data 212 depending on the capacity of the external memory.

  The data collection interval 311 may have a plurality of data collection intervals, for example, an ideal collection interval and a minimum collection interval that the user wants to guarantee.

  FIG. 3C is a diagram illustrating a configuration example of the communication timing table 213.

  The communication timing table 213 stores a result of communication timing calculation processing described later, and includes a collection data item 300, a collection data interval 331, a data storage destination 332, and the like.

  Returning to FIG. 2A, the description will be continued.

  The OS 220 is basic software that comprehensively controls the operation of the communication module unit 130.

  The software module 230 is software necessary for operating the communication module unit 130, and includes a communication control function 231, a setting data acquisition function 232, and a data collection function 233.

  The communication control function 231 is a function that generates the communication timing table 213 using the setting data 212. The generation method will be described later.

  The setting data acquisition function 232 is a function for acquiring setting data from the external memory via the USB IF 202 and storing it in the storage device 210 when the switch 206 is in the setting data storage mode.

  The data acquisition function 233 is a function that collects data based on the collection interval 331 set in the communication timing table 213 and stores the result based on the data storage destination 332 set in the communication timing table 213. .

  FIG. 2B is a diagram illustrating a configuration example of the power monitoring unit 120.

  The power monitoring unit 120 includes a hardware module 250, a storage device 260, an OS 270, and a software module 280.

  The hardware module 250 is hardware necessary for operating the power monitoring unit 120, and includes a voltage input unit 251, a current input unit 252, a temperature input unit 253, a relay output unit 254, an AD / DC conversion unit 255, and a microcomputer 256. The communication IF 257 and the display unit 258 are included.

  The voltage input unit 251 is a module that acquires information on the voltage monitored by the power monitoring unit 120 as an analog value.

  The current input unit 252 is a module that acquires information on the current monitored by the power monitoring unit 120 as an analog value.

  The temperature input unit 253 is a module that acquires information on the temperature monitored by the power monitoring unit 120 as an analog value.

  In the present embodiment, only the voltage input unit 251, the current input unit 252, and the temperature input unit 253 are mounted. However, for example, a configuration including a power input unit, a pressure input unit, and the like may be used as necessary.

  The relay output unit 254 is a module that controls opening and closing according to the current and voltage values acquired by the power monitoring unit 120.

  The AD / DC conversion unit 255 converts the analog value acquired from the voltage input unit 251, the current input unit 252, and the temperature input unit 253 into a digital value, and a control command for the relay output unit 254 that is a digital value transmitted by the microcomputer 256. Is a module that converts to an analog value.

  The microcomputer 256 is a module that includes a CPU, ROM, RAM, and nonvolatile memory.

  The communication IF 257 is an interface for communicating with the communication module unit 130, and corresponds to a serial interface, an internet interface, a wireless communication interface, or the like.

  The display unit 258 is a module for the user to make settings related to the power monitoring unit 120.

  The above is the description of the hardware module 250 mounted on the power monitoring unit 120.

  The software module 280 includes a voltage value calculation function 281, a current value calculation function 282, a temperature calculation function 283, and a data communication function 284.

  The voltage value calculation function 281 is a function that calculates a voltage value from information acquired using the voltage input unit 251 and stores the voltage value in the storage device 260 as the voltage value 261. In addition, the relay output unit 254 has a function of controlling according to the calculated voltage value.

  The current value calculation function 282 is a function that calculates a current value from information acquired using the current input unit 252 and stores the current value in the storage device 260 as the current value 262. In addition, the relay output unit 254 has a function of controlling according to the calculated current value.

  The temperature calculation function 283 is a function that calculates a temperature value from information acquired using the temperature input unit 253 and stores the temperature value in the storage device 260 as the temperature value 263. In addition, the relay output unit 254 has a function of controlling according to the calculated temperature value.

  In response to the data acquisition request transmitted by the communication unit module 130, the data communication function 284 transmits the voltage value 261, current value 262, and temperature value 263 stored in the storage device 260 as a response to the data acquisition request. It is a function.

  The voltage value 261, current value 262, and temperature 263 stored in the storage device 260 are only the latest values calculated by the respective calculation functions 281 to 283.

  FIG. 4 is a flowchart showing processing when the communication module unit 130 is turned on.

  When the power is turned on, the communication module unit 130 confirms the USB IF 202 (step 400) and confirms whether or not an external memory is inserted (step 401).

  As a result of the confirmation, if the external memory is inserted (YES in step 401), the communication module unit 130 confirms the contents of the inserted external memory and confirms that the setting data 212 is stored (step). 403).

  As a result of checking, if the setting data 212 is stored in the external memory, the communication module unit 130 stores the setting data 212 in the storage device 210 (step 404), and executes communication timing calculation processing (step 405). ).

  5A and 5B are flowcharts showing details of communication timing calculation processing. In the present embodiment, description will be made assuming that the values shown in FIGS. 7A and 7B are set in the collected data attribute information 211 and the setting data 212, respectively. For convenience of explanation, the collection mode 316 is left blank because it will be described in the collection data priority mode and the collection interval priority mode.

  The communication module unit 130 confirms the content of the setting data 212 stored in the storage device 210, and confirms the setting content of the collection mode 316 (step 500).

  As a result of the confirmation, if the collection mode 316 is a collection data priority mode in which priority is given to the type of data to be collected (YES in step 501), the communication module unit 130 stores data of all priorities described in the setting data 212. The type is confirmed (step 502). In the present embodiment, the electric energy, current value, voltage value, and temperature value are obtained.

  Next, the communication module unit 130 confirms the collected data attribute information 211 and acquires the data size of each data confirmed in Step 502 (Step 503). In the present embodiment, the data size of the electric energy is 5 MByte, the data size of the current value is 10 MByte, the data size of the voltage value is 10 MByte, and the data size of the temperature value is 5 MByte.

  The communication module unit 130 calculates the total size when each data is acquired from each power monitoring unit 120 from the acquired data size and the number of connected devices 310 set in the setting data 212 (step 504). In the present embodiment, since 10 devices are set as the number of connected devices 310, the total size is 300 MBytes by 10 × (5 MByte + 10 MByte + 10 MByte + 5 MByte).

  The communication module unit 130 compares the calculated total size with the memory size of the collected data storage destination. If the calculated total size is smaller (YES in step 505), the communication module unit 130 calculates the number of data collection times from the memory capacity of the storage destination. (Step 506). In this embodiment, since the data storage destination 317 is an external memory and the capacity of the external memory is 2 GB, the number of times of data collection is 6 times by 2 GB / 300 MB.

  The communication module unit 130 calculates a data collection interval from the calculated data collection count and the operation period 319 (step 507). In this embodiment, since the operation period 319 is one week, the collection interval is calculated as 100800 seconds by 1 week (604800 seconds) ÷ 6.

  The communication module unit 130 sets the calculated result in the communication timing table 213, and ends the communication timing calculation process (step 508).

  Next, processing when the total memory size calculated in step 505 is compared with the memory size of the storage destination and the memory size of the storage destination is smaller will be described. In the following description, it is assumed that the storage memory size is set to 256 MB instead of 2 GB.

  The communication module unit 130 compares the total data size calculated in step 505 with the memory size of the storage destination. As a result, if the memory size of the storage destination is smaller, the priority value is the highest in the setting data. The size of the large data is acquired, and the total size is calculated in the same manner as in step 504 (step 510 and step 511). In this embodiment, the temperature value is the data with the highest priority, and the total size is 5 Mbyte × 10 and 50 MByte.

  Next, the communication module unit 130 compares the total size calculated in step 511 with the total size calculated in step 511 as the total size (step 512), and compares it with the memory size of the storage destination (step 513). . In the present embodiment, the total size is 300 Mbyte-50 Mite = 250 MByte.

  If the total size is smaller as a result of the comparison, the communication module unit 130 performs the processing from step 506 to step 508 as the data type for collecting data excluding the data type having the highest priority, and performs communication. The timing calculation process ends. In the present embodiment, since the total size is smaller, the communication module unit 130 performs the processing from step 506 to step 508 by acquiring the data type excluding the temperature value.

  As a result of step 513, when the memory size of the storage destination is smaller, the communication module unit 130 performs the processing of step 511 to step 514 while decreasing the priority value one by one.

  If only the data of priority 1 cannot be collected as a result of performing the processing of step 511 to step 514 while decreasing the priority one by one, the communication module unit 130 cannot collect the data. And step 506 to step 508 are not executed, and the process is terminated.

  The above is the operation in the collected data priority mode. Next, the collection interval priority mode will be described.

  If the collection time priority mode is set in the collection mode 316 in step 501, the communication module unit 130 confirms the type of priority level 1 data described in the setting data 212 (steps 550 and 551). . In this embodiment, the amount of electric power and the current value are obtained.

  Next, the communication module unit 130 confirms the collected data attribute information 211 and acquires the data size of each data in step 551 (step 552). In the present embodiment, the data size of the electric energy is 5 MByte, and the data size of the current value is 10 MByte.

  The communication module unit 130 obtains each data from each power monitoring unit 120 based on the acquired data size, the number of connected devices 310 set in the setting data 212, the data collection interval 311 and the operation period 319. Is calculated (step 553, step 554). In this embodiment, it is possible to collect data from each power monitoring unit 120 from an operation period of one week (604800 seconds) and a data collection interval of 12 hours (43200 seconds) to 14 times (604800 seconds ÷ 43200 seconds). . In the present embodiment, since 10 is set as the number of connections 310, 10 data × (5 Mbyte + 10 MByte) = 150 MByte is required for one data collection, so the total size is 150 Mbyte × 14 times = 2100 Mbyte. (2.1 GB).

  The communication module unit 130 compares the calculated total size and the memory size of the collected data storage destination. If the calculated total size and the memory size are the same (YES in step 555), the data acquired in step 551 is collected. The acquired data is determined as the type of data to be collected (step 565) and stored in the communication timing table 213 (step 566). If the calculated total size and the memory size are not the same in step 555, the process proceeds to step 556. When the calculated total size is larger than the memory size (NO in step 556), the communication module unit 130 determines that one of the data (power amount and current value) set to priority 1 in the setting data 212 is one. The total size of the lower priority data (current value) in the lowest order is calculated (steps 559 and 560). In this embodiment, since the external memory capacity is 2 GB, it is smaller than the total size (2.1 GB) calculated in step 553. Therefore, the data size of the current value, which is the lowest data type in priority 1, is 10 units × 10 Mbytes × 14 times = 1400 Mbyte (1.4 GB).

  Next, the communication module unit 130 subtracts the data size calculated in step 560 from the data size calculated in steps 553 and 554, and sets the value as the total size (step 561). In the present embodiment, 2.1 GB-1.4 GB = 0.7 GB.

  The communication module unit 130 compares the total size calculated in step 561 with the memory size of the collected data storage destination, and if the total size calculated in step 561 is smaller than the memory size (YES in step 562), step It is determined that the data acquired in 551 can be stored in the collected data storage destination, and the acquired data is determined as the type of data to be collected (step 565) and stored in the communication timing table 213 (step 566). In this embodiment, it is determined that data can be collected from the total size of 0.7 GB and the collected data storage destination memory size of 2 GB, and only the power amount is stored in the communication timing table 213.

  The communication module unit 130 compares the total size calculated in step 561 with the memory size of the collected data storage destination, and the total size calculated in step 561 is larger than the memory size (NO in step 562). If the calculation of the data item has not been completed (NO in step 563), the processing of step 560 to step 562 is performed on the data size of the data item that has been calculated in step 560 (step 564). ).

  As a result of calculating all the data items, if the total size is larger than the memory size of the collected data storage destination (YES in step 563), the communication module unit 130 collects the data type set for the priority. It is determined that it cannot be performed, and the processing of step 565 and step 566 is performed.

  Further, the communication module unit 130 compares the calculated total size with the memory size of the collected data storage destination, and the calculated total size is smaller than the memory size (step 556), and the calculation has been completed for all priority data. If not (step 557), priority 1 is changed to priority 2, and the same processing as in steps 551 to 554 is performed. This process is executed while increasing the priority value one by one until the calculated total size is the same or larger than the memory size of the collected data storage destination (steps 555 to 558).

  If the calculated total size is smaller than the memory size of the collected data storage destination even if all the priority data are calculated (YES in step 557), the communication module unit 130 sets the collected data storage destination in step 551. It is determined that the acquired data can be stored, the processing of step 551 to step 558 is terminated, the type of data to be collected is determined from the processing result (step 565), and the information is stored in the communication timing table 213 (step). 566).

  When the communication timing calculation process (FIG. 4, step 405) ends, the communication module unit 130 turns on the LED 203 in accordance with the end result, and ends the power-on process (step 406). The lighting process of the LED 203 is, for example, a process of lighting blue when some data can be collected and blinking blue when there is no data that can be collected. Thereby, the user can be notified of the state of the communication module unit 130.

  If the setting data 212 does not exist in step 403 (NO in step 403), the communication module unit 1340 uses the default values set in the collected data attribute information 211 in advance to perform steps 405 and 406. The process is executed (step 407).

  If the external memory is not inserted in step 401 (NO in step 401) and the setting data 212 is already stored in the storage device 210 (YES in step 408), the communication module unit 130 stores the data. Using the stored data, the processing of step 405 and step 406 is performed (step 408).

  If the external memory is not inserted (NO in step 401) and the setting data 212 is not stored in the storage device 210 (NO in step 408), the fact that the data collection process cannot be performed is indicated using the LED 203. Notify the user.

  FIG. 6 is a flowchart showing processing of the communication module unit 130 after power is turned on.

  The communication module unit 130 periodically checks the state of the switch 206 (step 600).

  As a result of confirming the state of the switch 206, in the case of a normal operation state (YES in Step 601), the communication module unit 130 communicates with the power monitoring unit 120 through the communication IF 204 in accordance with the data items set in the communication timing table 213. Then, a data acquisition request is transmitted to collect data (step 602). Thus, when the switch 206 is in the normal operation state, data collection is performed based on the already set cycle.

  As a result of checking the state of the switch 206, when the data storage mode is not the normal operation state (NO in step 601) and the collected data 214 stored in the storage device 210 is moved to the external memory (YES in step 603), The communication module unit 130 confirms whether or not an external memory is inserted (step 604).

  As a result of the confirmation, if the external memory is inserted (YES in step 604), the communication module unit 130 saves the collected data 214 saved in the storage device 210 in the external memory (step 605), and stores it in the external memory. The saved collected data 214 is deleted from the storage device 210 (step 606).

  When the saving to the external memory and the deletion of the collected data 214 are completed, the communication module unit 130 turns on the LED 203 (step 607) and notifies the user of the completion. After step 607, the process returns to step 600 and continues. Note that when the collected data 214 stored in the storage device 210 cannot be stored in the external memory due to the capacity of the external memory, the communication module unit 130 notifies the user via the LED 203 to that effect. Also, when the external memory is not inserted (NO in step 604), the communication module unit 130 notifies the user through the LED 203 to that effect.

  As a result of confirming the state of the switch 206, when not in the normal operation state (NO in step 601) and in the setting data storage mode (NO in step 603), the communication module unit 130 is based on the data set in the USB memory. Then, the setting data 212 is changed (step 608). After the changing process, the process returns to step 600 to continue the process.

  As described above, the embodiments of the present invention have been described. According to the above-described embodiments, in a system that collects data from a power monitoring device or the like that exists on a network such as a power monitoring system, operation at the time of data collection that differs for each system Considering conditions, data can be collected at an appropriate timing.

  Moreover, it goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

100 PC
110 communication line 120 power monitoring unit 130 communication module unit 200, 250 hardware module 201, 256 microcomputer 202 USB IF
203 LED
204, 257 Communication I / F
205 Timer 206 Switch 210, 260 Storage device 220, 270 OS
230, 280 Software module 251 Voltage input unit 252 Current input unit 253 Temperature input unit 254 Relay output unit 255 AD / DC conversion unit 258 Display unit.

Claims (4)

A communication device connected to a plurality of monitoring devices,
In advance, a storage device that stores setting data relating to operating conditions of the communication device including data collected from the monitoring device, and collected data attribute information;
An arithmetic processing unit that stores the setting data and the collected data attribute information in the storage device;
Based on the setting data, the arithmetic processing unit collects data items set with a low priority and data items set with a high priority. One of the data collection interval priority modes for collecting the data items determined is determined as a data collection mode, and each of the plurality of monitoring devices is determined according to the determined collection data priority mode or data collection interval priority mode. Communication items, or data items collected from the plurality of monitoring devices are stored in the storage device,
The arithmetic processing device collects data for each monitoring device using the set communication timing, the setting data and the collected data attribute information stored in the storage device,
The setting data includes the data collection mode, the number of the monitoring devices connected to the communication device, the type of collection data by priority, the data collection interval, and the collected data storage destination indicating the external memory or the internal memory. A capacity of the external memory or the internal memory and an operation period of the communication device,
The collected data attribute information includes a data size and a priority for each collected data,
When the data collection mode indicates the collected data priority mode, the arithmetic processing unit acquires a data size of each collected data for each priority in the setting data from the collected data attribute information, and acquires each collected collection The total data size is calculated from the data size of the data and the number of monitoring devices in the setting data, and based on the total data size, the capacity of the memory serving as the data storage destination in the setting data, and the operation period, the collected data Calculating the collection interval of the collected data, and storing the collection interval of the collected data in the storage device together with the collection data storage destination;
A communication device. When the data collection mode indicates the data collection interval priority mode, the arithmetic processing unit determines from the type of collected data by priority in the setting data, the type of collected data by priority, and the collected data attribute information. The total data size of the collected data by priority is calculated from the data size of the collected data by priority specified, the number of monitoring devices in the setting data, the data collection interval, and the operation period, and the total data size Determining the type of the collected data based on the capacity of the memory serving as a data storage destination in the setting data, and storing the type of the collected data in the storage device together with the collected data storage destination;
The communication apparatus according to claim 1. A data collection method in a communication device connected to a plurality of monitoring devices,
The communication device is preliminarily set data relating to operating conditions of the communication device including data collected from the monitoring device, a storage device in which collected data attribute information is stored,
An arithmetic processing unit that stores the setting data and the collected data attribute information in the storage device, and based on the setting data, the item of data set with a low priority and the priority set high Either the collected data priority mode for collecting data items or the data collection interval priority mode for collecting data items set at a high priority is determined as the data collection mode, and the determined collected data priority is determined. According to the mode or the data collection interval priority mode, the communication timing with each of the plurality of monitoring devices and the items of data collected from the plurality of monitoring devices are stored in the storage device,
Using the set communication timing, the setting data and the collected data attribute information stored in the storage device, collect data for each monitoring device,
The setting data includes the data collection mode, the number of the monitoring devices connected to the communication device, the type of collection data by priority, the data collection interval, and the collected data storage destination indicating the external memory or the internal memory. A capacity of the external memory or the internal memory and an operation period of the communication device,
The collected data attribute information includes a data size and a priority for each collected data,
When the data collection mode indicates the collection data priority mode, the data size of each collection data according to the priority in the setting data is acquired from the collection data attribute information, and the data size of each acquired collection data and the data The total data size is calculated from the number of monitoring devices in the setting data, and the collected data and the collection of the collected data are calculated based on the total data size, the memory capacity of the data storage destination in the setting data, and the operation period. Calculating the interval and storing the collection interval of the collected data in the storage device together with the collected data storage destination;
A data collection method characterized by the above. When the data collection mode indicates the data collection interval priority mode, the priority specified by the type of collected data by priority in the setting data, the type of collected data by priority, and the collected data attribute information The total data size of the collected data by priority is calculated from the data size of the separately collected data, the number of monitoring devices in the setting data, the data collection interval, and the operation period, and the total data size and the data in the setting data based on the amount of memory the destination, it determines the type of the collected data, together with the collection data storage destination, and stores the type of the collected data in the storage device,
The data collection method according to claim 3.

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