WO2017090306A1 - Système de collecte de données de capteurs - Google Patents

Système de collecte de données de capteurs Download PDF

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Publication number
WO2017090306A1
WO2017090306A1 PCT/JP2016/077443 JP2016077443W WO2017090306A1 WO 2017090306 A1 WO2017090306 A1 WO 2017090306A1 JP 2016077443 W JP2016077443 W JP 2016077443W WO 2017090306 A1 WO2017090306 A1 WO 2017090306A1
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Prior art keywords
sensing data
transmission
data
time
server device
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PCT/JP2016/077443
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English (en)
Japanese (ja)
Inventor
井上　哲夫
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日本電気株式会社
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Publication of WO2017090306A1 publication Critical patent/WO2017090306A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path
    • G08C15/06—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path successively, i.e. using time division
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom

Definitions

  • the present invention relates to a sensor data collection system, a sensor data collection method, a gateway device, a server device, and a program.
  • a plurality of devices having sensors, one or more gateway devices that collect sensor sensing data from the devices, a server device that collects sensing data from the gateway devices through the network, and a user that collects sensing data from the server devices through the network A sensor data collection system composed of a device has been proposed or put into practical use.
  • a sensor data collection system configured to transmit data specified at a specified transmission timing from a gateway device to a server device through a network such as the Internet has been proposed as a first related technique related to the present invention.
  • the gateway device temporarily accumulates sensing data collected from the device. For example, when the scheduled time of 10:00 am defined by the transmission time comes, the gateway device is defined by the transmission definition ID. Data is transmitted to the server device via the network.
  • the gateway device transmits the data defined by the transmission definition ID to the server device via the network every time 86400 seconds defined by the transmission timing elapses.
  • the gateway device transmits data defined by the transmission definition ID to the server device via the network every time 100 km defined by the transmission timing moves.
  • a sensor data collection system configured to transmit sensing data for a plurality of times acquired from a device at a specified data acquisition interval from a gateway device to a server device through a network such as an IP network at a specified transmission timing.
  • a second related technique related to the present invention see, for example, Patent Document 2.
  • the gateway device acquires and accumulates sensing data from the first device every 10 seconds in accordance with a sensor data transmission instruction, and stores the acquired sensing data through the network every minute.
  • Send to server device Further, for example, the gateway device acquires sensing data from the second device every hour in accordance with the sensor data transmission instruction, and transmits the acquired sensing data to the server device through the network every day.
  • the gateway device temporarily accumulates the sensing data collected from the device, and when it becomes a predefined transmission timing, it should transmit to the transmission timing Sensing data is transmitted to the server device via the network.
  • sensing data with different transmission timings is transmitted as separate transmission data from the gateway device to the server device via the network, and the load on the network increases.
  • the server apparatus temporarily accumulates the sensing data collected from the device, and when it becomes a predefined transmission timing, the sensing data to be transmitted to the transmission timing is transmitted to the user apparatus via the network For the same reason as described above, there is a problem that the load on the network between the server device and the user device increases.
  • An object of the present invention is to provide a sensor data collection system that solves the above-described problems.
  • a sensor data collection system includes: A plurality of devices having sensors, a gateway device that collects sensing data of the sensor from the devices, a server device that collects the sensing data from the gateway device, and a user device that collects the sensing data from the server device And consists of At least one of the gateway device and the server device is Storage means for storing the sensing data collected from the device; Extraction means for extracting the sensing data that can be transmitted at the same transmission timing from the sensing data of a plurality of devices having different transmission timings stored in the storage means, and collecting the extracted sensing data into one transmission data When, Is provided.
  • a sensor data collection method includes: A plurality of devices having sensors, a gateway device that collects sensing data of the sensor from the devices, a server device that collects the sensing data from the gateway device, and a user device that collects the sensing data from the server device
  • a sensor data collection method in a sensor data collection system comprising: At least one of the gateway device and the server device is Storing the sensing data collected from the device in a storage means; Extracting the sensing data that can be transmitted at the same transmission timing from the sensing data of a plurality of devices having different transmission times stored in the storage means, The extracted sensing data is combined into one transmission data.
  • a gateway device is: A gateway device that collects sensing data of the sensor from a plurality of devices having a sensor and transmits the collected sensing data to a server device, Storage means for storing the sensing data collected from the device; Extracting the sensing data that can be transmitted at the same transmission timing from the sensing data of a plurality of devices having different transmission times stored in the storage means, and transmitting the extracted sensing data to the server device Extraction means for combining the data into one transmission data;
  • a program is: A computer constituting a gateway device that collects sensing data of the sensors from a plurality of devices having sensors and transmits them to a server device, Storage means for storing the sensing data collected from the device; Extracting the sensing data that can be transmitted at the same transmission timing from the sensing data of a plurality of devices having different transmission times stored in the storage means, and transmitting the extracted sensing data to the server device Extraction means for combining the data into one transmission data; And make it work.
  • a server device is: A server device that collects sensing data of the sensor from a plurality of devices having sensors and transmits the collected data to a user device, Storage means for storing the sensing data collected from the device; Extracting the sensing data that can be transmitted at the same transmission timing from the sensing data of a plurality of devices having different transmission timings stored in the storage means, and transmitting the extracted sensing data to the user device Extraction means for combining the data into one transmission data, Have
  • a program is: A computer constituting a server device that collects sensing data of the sensors from a plurality of devices having sensors and transmits them to a user device, Storage means for storing the sensing data collected from the device; Extracting the sensing data that can be transmitted at the same transmission timing from the sensing data of a plurality of devices having different transmission timings stored in the storage means, and transmitting the extracted sensing data to the user device Extraction means for combining the data into one transmission data, And make it work.
  • the present invention has the above-described configuration, the load on the network between the gateway device and the server device or the network between the server device and the user device can be reduced.
  • FIG. 1 is a block diagram of a sensor data collection system according to a first embodiment of the present invention. It is a block diagram of an information processor which realizes a gateway device concerning a 1st embodiment of the present invention. It is a figure which shows an example of the format of the sensing data transmitted to the gateway apparatus from the device in the sensor data collection system which concerns on the 1st Embodiment of this invention. It is a figure which shows an example of the format of the sensing data which adds and stores a reception time in the gateway apparatus which concerns on the 1st Embodiment of this invention. It is a detailed block diagram of the extraction means of the gateway apparatus which concerns on the 1st Embodiment of this invention.
  • the sensor data collection system 100 includes a device 110, a gateway device 120, a server device 130, and a user device 140.
  • Each device 110 has one or more sensors 111.
  • the sensor 111 is, for example, a power meter, a thermometer, a humidity system, a monitoring camera, or the like.
  • the device 110 has a function of transmitting data detected by the sensor 111, that is, sensing data to the gateway device 120 through the network 150.
  • the network 150 is, for example, a network such as ZigBee (registered trademark) or Bluetooth (registered trademark).
  • the gateway device 120 is connected to the device 110 through the network 150 and is connected to the server device 130 through the network 160.
  • the gateway device 120 has a function as a relay device that transmits sensing data of the sensor 111 collected from the device 110 via the network 150 to the server device 130 via the network 160.
  • the network 160 is a mobile network such as 3G or LTE.
  • the gateway device 120 includes a communication unit 121, a storage unit 122, an extraction unit 123, and a communication unit 124.
  • the communication unit 121 has a function of communicating with the device 110 through the network 150.
  • the communication unit 121 has a function of storing the sensing data of the sensor 111 received from the device 110 in the storage unit 122.
  • the storage unit 122 has a function of temporarily storing sensing data collected from the device 110.
  • the storage unit 122 may be a randomly accessible storage device such as a RAM or a magnetic disk.
  • the data stored in the storage unit 122 may be deleted from the storage unit 122 in order to increase the free capacity when the transmission to the server device 130 is completed or when a certain period has elapsed.
  • the extraction unit 123 is a unit that extracts sensing data to be transmitted to the server device 130 from the storage unit 122 and transmits the sensing data to the communication unit 124.
  • the extraction unit 123 has a function of quickly extracting sensing data requiring immediacy when stored in the storage unit 122 and outputting the data to the communication unit 124 as transmission data.
  • the extraction means 123 extracts sensing data that can be transmitted at the same transmission timing from sensing data of a plurality of devices 110 having different transmission timings stored in the storage means 122 for sensing data that does not require immediacy.
  • the extracted sensing data is combined into one transmission data for transmitting to the server device 130 and output to the communication means 124. Details of the configuration of the extracting means 123 will be described later.
  • the communication unit 124 has a function of communicating with the server device 130 through the network 160.
  • the communication unit 124 has a function of storing transmission data transmitted from the extraction unit 123 in a packet and transmitting the packet to the server device 130 via the network 160.
  • the gateway device 120 includes an arithmetic processing unit 181 such as one or more microprocessors, a storage unit 182 such as a memory or a hard disk, a first communication module 183, The information processing apparatus 180 including the communication module 184 and the program 185 can be realized.
  • the first communication module 183 is used for communication with the device 110
  • the second communication module 184 is used for communication with the server device 130.
  • the first communication module 183 is a module that performs wireless communication using a protocol of Bluetooth (registered trademark) or ZigBee (registered trademark).
  • the second communication module 184 is a module that performs wide-area wireless communication, which is employed in, for example, a mobile phone network or a PHS network.
  • the program 185 is read from an external computer-readable recording medium into the memory when the information processing apparatus 180 is started up, and controls the operation of the arithmetic processing unit 181, thereby causing the communication unit 121 on the arithmetic processing unit 181.
  • Functional means such as storage means 122, extraction means 123, and communication means 124 are realized.
  • the server device 130 is connected to the gateway device 120 through the network 160 and is connected to the user device 140 through the network 170.
  • the server device 130 is also called a common platform.
  • the network 170 is a network such as the Internet, for example.
  • the server device 130 includes a database 131 and processing means 132.
  • the database 131 has a function of storing sensing data of the device 110 collected from the gateway device 120 through the network 160.
  • the processing unit 132 has a function of searching the database 131 according to a search request received from the user device 140 through the network 170 and returning the search result to the requesting user device 140, for example.
  • the processing unit 132 may have a function of autonomously transmitting the sensing data stored in the database 131 to the user device 140 through the network 170 without depending on the search request.
  • User device 140 is a computer such as a personal computer used by a user of the sensor data collection system.
  • Each device 110 detects a state such as temperature by the sensor 111 and transmits sensing data including the detected value to the gateway device 120 through the network 150. Such detection by the sensor 111 of the device 110 and transmission to the gateway device 120 are periodically and repeatedly executed. Alternatively, such detection of the device 110 by the sensor 111 is periodically repeated, but transmission to the gateway device 120 is performed when a detection value by the sensor 111 satisfies a predetermined condition. Also good.
  • FIG. 3 shows an example of the format of sensing data transmitted from the device 110 to the gateway device 120.
  • the sensing data 112 in this example includes a device ID 113, a sensor ID 114, a detection time 115, and a detection value 116.
  • the device ID 113 is a number for identifying the device 110.
  • the sensor ID 114 is a number or the like for identifying the sensor 111.
  • the detection time 115 is a detection time by the sensor 111.
  • the detection value 116 is a value such as a temperature detected by the sensor 111.
  • the communication unit 121 of the gateway device 120 When receiving the sensing data from the device 110 via the network 150, the communication unit 121 of the gateway device 120 adds the reception time 117 to the received sensing data 112 and stores it in the storage unit 122 as shown in FIG.
  • the extraction unit 123 of the gateway device 120 extracts sensing data to be transmitted to the server device 130 from the storage unit 122 and transmits the sensing data to the communication unit 124. At this time, when the sensing data that requires immediacy is stored in the storage unit 122, the extraction unit 123 quickly extracts the data as one transmission data. Further, the extraction means 123 extracts sensing data that can be transmitted at the same transmission timing from sensing data of a plurality of devices 110 having different transmission timings stored in the storage means 122 for sensing data that does not require immediacy. The extracted sensing data is collected into one transmission data for transmitting to the server device 130. Details of the operation of the extracting means 123 will be described later.
  • the communication unit 124 of the gateway device 120 receives one piece of transmission data from the extraction unit 123, the communication unit 124 packetizes the transmission data and transmits the packeted data to the server device 130 via the network 160. That is, if the transmission data can be transmitted in one packet, the communication unit 124 transmits the transmission data to the network 160 with the one packet, and the transmission data cannot be stored in one packet due to the packet size limitation. At this time, the transmission data is divided into a plurality of packets and transmitted to the network 160.
  • the database 131 of the server device 130 stores sensing data included in packets received from the gateway device 120 through the network 160. Thereafter, the processing unit 132 of the server device 130 transmits the sensing data stored in the database 131 to the user device 140 via the network 170 in accordance with a request from the user device 140 or autonomously.
  • the user device 140 displays the data received from the server device 130 on the display device, or inputs the data into an application program and executes predetermined processing such as statistical processing.
  • FIG. 5 is a detailed block diagram of the extracting means 123.
  • the extraction unit 123 includes a transmission time definition unit 1231, a transmission data storage unit 1232, a first extraction unit 1233, and a second extraction unit 1234.
  • the transmission timing definition unit 1231 holds definition information that defines the relationship between the transmission timing and the sensing data of the device 110 that is transmitted when the transmission timing is reached.
  • FIG. 6 shows an example of definition information held in the transmission time definition unit 1231.
  • Each row of the table shown in FIG. 6 is one definition information.
  • One definition information 12311 includes a condition identifier 12312, a transmission time 12313, an allowable time 12314, and a device ID list 12315.
  • the condition identifier 12312 is a number or the like for identifying the definition information 12311.
  • the transmission time 12313 is a time condition for transmitting sensing data from the gateway device 120 to the server device 130.
  • There are a plurality of types of transmission timing 12313 such as scheduled transmission, periodic transmission, reception time difference transmission, individual arrival time transmission, individual arrival time zone transmission, and immediate transmission, but there may be other types.
  • Scheduled transmission indicates that transmission is performed at the time defined by the transmission timing.
  • Periodic transmission represents transmission at a time interval defined by the transmission timing. The starting point of the time interval is, for example, the activation time of the gateway device 120.
  • Reception time difference transmission indicates that transmission is performed so as to arrive at the server device within a specified time from the reception time.
  • the individual arrival time transmission indicates that transmission is performed so as to arrive at the server device at a specified time.
  • the individual arrival time zone transmission indicates that transmission is performed so as to arrive at the server device in a specified time zone.
  • Immediate transmission indicates that transmission is performed immediately after reception.
  • the transmission timing may be defined based on the data arrival time desired by the user of the user device 140.
  • the specified time of 10 minutes in the reception time difference transmission in which transmission is performed so as to arrive at the server device within 10 minutes from the reception time indicates that the user device 140 arrives within 15 minutes from the reception time of the gateway device 120. It may be determined based on the desire of the desired user and the time required for the server device to transmit the arrived data to the user device for 5 minutes.
  • the individual arrival time transmission for transmitting so as to arrive at the server device at 20:00 is the request of the user who wishes to arrive at the user device 140 at 20:05 and the received data is stored in the server It may be determined based on the time required for the device to transmit to the user device, 5 minutes.
  • Allowable time 12314 represents a fluctuation range of time allowed for transmission time 12313.
  • the reason for setting such a permissible time is that, in the case of sensing data that does not require immediacy, it is possible to transmit at the same transmission timing by allowing a slight time lag and allowing sufficient time for transmission. This is to increase the sensing data.
  • the device ID list 12315 is a list of IDs of the devices 110 to which the definition information 12311 is applied.
  • This definition information includes the sensing data collected from the device 110 having any one of the device IDs 0010 to 0019 from the gateway device 120 to the server device 130 after the elapse of 9 minutes from the previous transmission cycle to the time of 11 minutes. It represents the condition of sending to.
  • This definition information includes the sensing data collected from the device 110 having any one of the device IDs 0020 to 0029 from the gateway device 120 to the server device 130 after 17 minutes from the previous transmission cycle until 17 minutes have passed. It represents the condition of sending to.
  • the definition information whose condition identifier is “07” in FIG. 6 includes “individual arrival time zone transmission (19:00 to 20:00)” in the transmission time, “10 minutes” in the allowable time, and the device ID list. “0060-0069” is described.
  • This definition information is sent from the gateway device 120 to the server device so that sensing data collected from the device 110 having any device ID of 0060 to 0069 arrives at the server device 130 between 18:50 and 20:10. This represents a condition of transmitting to 130.
  • This definition information represents a condition that the sensing data collected from the device 110 having any one of the device IDs 0070 to 0079 is transmitted from the gateway device 120 to the server device 130 as soon as possible.
  • the first extraction unit 1233 quickly extracts the sensing data of the device whose transmission timing is “immediate transmission” when stored in the storage unit 122, and transmits the communication unit as transmission data for immediate transmission.
  • the function of transmitting to 124 is provided.
  • the first extraction unit 1233 is activated by an interrupt or the like every time the communication unit 121 writes new sensing data to the storage unit 122.
  • the transmission unit 12313 stores the sensing data 112 having the device ID 113 that matches the device ID described in the device ID list 12315 of the definition information 12311 of “immediate transmission”. Search from 122. If the search is successful, the first extraction unit 1233 transmits the detected sensing data 112 to the communication unit 124 as transmission data for immediate transmission.
  • the transmission data accumulation unit 1232 has a function of temporarily accumulating sensing data extracted by the second extraction unit 1234 as transmission data.
  • the data stored in the transmission data storage unit 1232 may be deleted from the transmission data storage unit 1232 when the transmission is completed.
  • the second extraction unit 1234 is activated at a predetermined cycle. This activation cycle is determined by the transmission time with the shortest time from the time of reception to the time of transmission. For example, excluding immediate transmission, the transmission time having the shortest time from the time of reception to the time of transmission in the transmission time shown in FIG. 6 is the condition identifier 02, and the shortest time is 1 minute. It is. Accordingly, the second extraction unit 1234 is activated with a period of one minute or less.
  • the sensing data stored in the storage unit 122 can be transmitted at the same transmission timing from the sensing data of the device whose transmission timing is other than “immediate transmission” until the next activation time point. Is extracted and stored in the transmission data storage unit 1232.
  • the second extraction unit 1234 has a function of transmitting the data stored in the transmission data storage unit 1232 to the communication unit 124 as one transmission data.
  • the second extraction unit 1234 when the second extraction unit 1234 is activated, the second extraction unit 1234 is based on the transmission time 12313 other than “immediate transmission” defined in the transmission time definition unit 1231, the allowable time 12314, and the device ID list 12315.
  • the transmission possible period is calculated for each sensing data stored in the storage unit 122, and sensing data that can be transmitted at the same transmission timing until the next activation time is extracted based on the transmission possible period.
  • the second extraction unit 1234 determines the transmission time based on the sensing data in which the end of the transmittable period comes up to the next activation time and the remaining time is the shortest, and the transmission including the determined transmission time Extract other sensing data having a possible period.
  • FIG. 7 is a flowchart showing an example of processing of the second extraction unit 1234.
  • the operation of the second extraction unit 1234 will be described with reference to FIG.
  • the second extraction unit 1234 When the second extraction unit 1234 is activated, it stores the sensing data from the storage unit 122 that has the shortest remaining time until the end of the sensing data from which the end of the transmittable period comes until the next activation. (Step S101). If the search fails (NO in step S102), that is, if there is no sensing data for which the end of the transmittable period is reached before the next activation, the second extraction unit 1234 Exit.
  • the second extraction unit 1234 determines the end of the transmission possible period of the sensing data searched in step S101 or a time before the predetermined time as the transmission timing Ts (Ste S103). Next, the second extraction unit 1234 takes out the sensing data searched in step S101 from the storage unit 122 and stores it in the transmission data storage unit 1232 (step S104).
  • the second extraction unit 1234 searches the storage unit 122 for all sensing data that can be transmitted at the transmission timing Ts (step S105). If the search is successful (YES in step S106), the second extraction unit 1234 extracts all searched sensing data from the storage unit 122 and stores it in the transmission data storage unit 1232 (step S107). Then, the process proceeds to step S108. If the search fails (NO in step S106), the second extraction unit 1234 skips step S107 and proceeds to the process of step S108.
  • step S108 the second extraction unit 1234 monitors the arrival of the transmission timing Ts. Then, at the transmission timing Ts (YES in step S108), the second extraction unit 1234 extracts all the sensing data stored in the transmission data storage unit 1232, combines them into one transmission data, and outputs it to the communication unit 124. (Step S109). Then, the second extraction unit 1234 ends the current process.
  • FIG. 8 is a conceptual diagram for explaining the operation of the second extraction unit 1234, and shows an example of some sensing data stored in the storage means 122 and their transmittable periods.
  • the second extraction unit 1234 is activated every minute, and a scene activated at 7:51 is considered.
  • the second extraction unit 1234 When the second extraction unit 1234 is activated, it starts executing the processing shown in FIG. 7, and the sensing data in which the end of the transmittable period comes by 7:52, which is the next activation time, is stored in the storage means. 122 is detected (NO in steps S101 and S102), and the process in FIG. 7 is terminated.
  • the second extraction unit 1234 When the second extraction unit 1234 is activated, the second extraction unit 1234 starts the execution of the processing shown in FIG. 7 and is sensing data in which the end of the transmittable period comes by 7:53, which is the next activation time. Then, the sensing data 112-5 having the shortest remaining time until the end is searched from the storage means 122 (YES in steps S101 and S102). For this reason, the second extraction unit 1234 determines, for example, 7:52:30 as the transmission timing Ts based on the end of the transmittable period of the sensing data 112-5 (step S103). Then, the second extraction unit 1234 stores the sensing data 112-5 in the transmission data storage unit 1232 (step S104).
  • the transmission possible period of sensing data 112-1, 112-3, 112-4 includes time 7:52:30.
  • the transmission possible period of the sensing data 112-2, 112-6, 112-7 does not include the time 7:52:30. Therefore, the second extraction unit 1234 extracts the sensing data 112-1, 112-3, and 112-4 from the storage unit 122 and stores them in the transmission data storage unit 1232 (YES in step S106, S107).
  • FIG. 9 shows an example of the format of the transmission data combined into one.
  • a fixed-length communication identifier 118 is added to each sensing data 112.
  • a fixed-length reception time 117 and a communication identifier 118 are added to each sensing data 112.
  • the communication identifier 118 has a field that describes an identification number that uniquely identifies sensing data constituting a pair. Further, the communication identifier 118 has a field describing the data length of the sensing data constituting the pair.
  • the server device 130 that has received the transmission data can recognize each sensing data based on the communication identifier 118. In the case of transmission data having the reception time 117, the server device 130 can recognize the time when the sensing data is received by the gateway device based on the reception time.
  • the load on the network 160 between the gateway device 120 and the server device 130 can be reduced.
  • the gateway device 120 extracts sensing data that can be transmitted at the same transmission timing from the sensing data of a plurality of devices having different transmission timings, and transmits the extracted sensing data to the server device 130. This is because the data is collected into transmission data.
  • the gateway device 120 calculates the transmission possible period for each sensing data based on the transmission timing defined for each device and the predefined allowable time, and the same transmission timing based on the transmission possible period. This is because it extracts sensing data that can be transmitted by.
  • the sensing data that is immediately transmitted by the transmission time can be transmitted from the gateway device 120 to the server device 130 as quickly as possible.
  • the gateway device 120 is configured to promptly transmit the sensing data immediately transmitted from the device 110 to the server device 130 via the network 160 when the transmission timing is received from the device 110.
  • the present embodiment has a configuration in which transmission time definition information 22311 is added to sensing data 212 transmitted from the device 110 to the gateway device 120.
  • the sensing data 212 includes a device ID 213, a sensor ID 214, a detection time 215, and a detection value 216. These are the same as the device ID 113, sensor ID 114, detection time 115, and detection value 116 described with reference to FIG.
  • the definition information 22311 includes a transmission time 22313 and an allowable time 22314. These are the same as the transmission time 12313 and the allowable time 12314 described with reference to FIG.
  • the extraction unit 123 of the gateway device 120 refers to the transmission timing definition information 22311 added to the sensing data 212 stored in the storage unit 122 instead of referring to the transmission timing definition unit 1231, and senses the device sensing data. Recognize 212 transmission time and allowable time, and calculate a transmission possible period and the like. Further, the definition information 22311 may be included in the sensing data 112 in the transmission data that the gateway device 120 transmits to the server device 130.
  • the present embodiment has a configuration in which a condition identifier 32312 is added to sensing data 312 transmitted from the device 110 to the gateway apparatus 120.
  • the sensing data 312 includes a device ID 313, a sensor ID 314, a detection time 315, and a detection value 316. These are the same as the device ID 113, sensor ID 114, detection time 115, and detection value 116 described with reference to FIG.
  • condition identifier 32312 is the same as the condition identifier 12312 described with reference to FIG.
  • the extraction unit 123 of the gateway device 120 refers to the definition information 12311 having the same condition identifier 12312 as the condition identifier 3212 added to the sensing data 312 stored in the storage unit 122 from the transmission time definition unit 1231, and It recognizes the transmission timing and allowable time of the sensing data 312 and calculates a transmittable period.
  • the condition identifier 32312 may be included in the sensing data 112 in the transmission data that the gateway device 120 transmits to the server device 130.
  • a sensor data collection system 400 includes a device 410, a gateway device 420, a server device 430, and a user device 440.
  • Each device 410 has one or more sensors 411.
  • the sensor 411 and the device 410 have the same functions as the sensor 111 and the device 110 shown in FIG.
  • the network 450 is the same network as the network 150 shown in FIG.
  • the gateway device 420 is connected to the device 410 through the network 450 and is connected to the server device 430 through the network 460.
  • the gateway device 420 has a function as a relay device that transmits the sensing data of the sensor 411 collected from the device 410 via the network 450 to the server device 430 via the network 460.
  • the network 460 is a mobile network such as 3G or LTE.
  • each gateway device 420 has the same function as the gateway device 120 described with reference to FIG.
  • transmission data is transmitted from the gateway device 420 to the server device 430 in the format shown in FIG. However, only one gateway device 420 may be present, or none may be present. When the gateway device 420 is present, the gateway device 420 may not have the same function as the gateway device 120 described with reference to FIG.
  • the server device 430 is connected to the gateway device 420 through the network 460 and is connected to the user device 440 through the network 470.
  • the server device 430 is also called a common platform.
  • the network 470 is a network such as the Internet.
  • the server device 430 includes a communication unit 431, a storage unit 432, an extraction unit 433, and a communication unit 434.
  • the communication unit 431 has a function of communicating with the gateway device 420 through the network 460.
  • the communication unit 431 has a function of storing data including sensing data of the sensor 411 as shown in FIG. 9B received from the gateway device 420 in the storage unit 432.
  • the storage unit 432 has a function of temporarily storing data including sensing data collected from the device 410 through the gateway device 420.
  • the storage unit 432 may be a randomly accessible storage device such as a RAM or a magnetic disk.
  • the data stored in the storage unit 432 may be deleted from the storage unit 432 in order to increase the free space when transmission to the user device 440 is completed or when a certain period of time has elapsed.
  • the extraction unit 433 is a unit that extracts sensing data to be transmitted to the user device 440 from the storage unit 432 and transmits it to the communication unit 434.
  • the extraction unit 433 has a function of quickly extracting sensing data requiring immediacy when stored in the storage unit 432 and outputting the data to the communication unit 434 as transmission data.
  • the extraction unit 433 extracts sensing data that can be transmitted at the same transmission timing from the sensing data of a plurality of devices 410 having different transmission timings stored in the storage unit 432 for sensing data that does not require immediacy.
  • the extracted sensing data is combined into one transmission data for transmission to the user device 440 and output to the communication means 434. Details of the configuration of the extraction means 433 will be described later.
  • the communication unit 434 has a function of communicating with the user device 440 through the network 470.
  • the communication unit 434 has a function of storing transmission data transmitted from the extraction unit 433 in a packet and transmitting the packet to the user device 440 via the network 470.
  • the server device 430 includes an arithmetic processing unit 481 such as one or more microprocessors, a storage unit 482 such as a memory or a hard disk, a first communication module 483, It can be realized by an information processing device 480 having a communication module 484 and a program 485.
  • the first communication module 483 is used for communication with the gateway device 420
  • the second communication module 484 is used for communication with the user device 440.
  • the first communication module 483 is a module that performs wide-area wireless communication employed in, for example, a mobile phone network or a PHS network.
  • the second communication module 484 is a communication module for a wireless LAN or a wired LAN, for example.
  • the program 485 is read into the memory from an external computer-readable recording medium when the information processing apparatus 480 is started up, and the operation of the arithmetic processing unit 481 is controlled, whereby the communication unit 431 is provided on the arithmetic processing unit 481.
  • Functional means such as storage means 432, extraction means 433, and communication means 434 are realized.
  • User device 440 is a computer such as a personal computer used by a user of the sensor data collection system. In the present embodiment, there are a plurality of user devices 440, but there may be only one.
  • Each device 410 detects a state such as temperature by the sensor 411, and transmits sensing data including the detected value to the gateway device 420 through the network 450. Such detection of the device 410 by the sensor 411 and transmission to the gateway device 420 are periodically and repeatedly executed. Alternatively, such detection by the sensor 411 of the device 410 is repeatedly performed periodically, but transmission to the gateway device 420 is performed when a detection value by the sensor 411 satisfies a predetermined condition. Also good.
  • the format of sensing data transmitted from the device 410 to the gateway device 420 is the same as the format shown in FIG.
  • the gateway device 420 When the gateway device 420 receives sensing data from the device 410 through the network 450, the gateway device 420 performs the same operation as the gateway device 120 illustrated in FIG. 1 and transmits the received data including the sensing data to the server device 430 through the network 460. To do.
  • the format of data transmitted from the gateway device 420 to the server device 430 is the same as the format shown in FIG. 9B, for example. That is, the data transmitted from the gateway device 420 to the server device 430 includes one or more sets of the sensing data 112, the fixed length reception time 117, and the communication identifier 118.
  • the sensing data 112 is composed of a device ID 113, a sensor ID 114, a detection time 115, and a detection value 116.
  • the communication unit 431 of the server device 430 stores the data shown in FIG. 9B included in the packet received from the gateway device 420 through the network 460 in the storage unit 432.
  • the extraction unit 433 of the server device 430 extracts sensing data to be transmitted to the user device 440 from the storage unit 432 and transmits the sensing data to the communication unit 434.
  • the extracting unit 433 quickly extracts the data as one transmission data.
  • the extraction means 433 extracts sensing data that can be transmitted at the same transmission timing from sensing data of a plurality of devices 410 having different transmission timings stored in the storage means 432 for sensing data that does not require immediacy.
  • the extracted sensing data is collected into one transmission data for transmitting to the user device 440. Details of the operation of the extracting means 433 will be described later.
  • the communication unit 434 of the server device 430 receives one piece of transmission data from the extraction unit 433, the communication unit 430 packetizes the transmission data and transmits it to the user device 440 via the network 470. That is, if the transmission data can be transmitted in one packet, the communication unit 434 sends the transmission data in the one packet to the network 470, and the transmission data cannot be stored in one packet due to the packet size limitation. At this time, the data is divided into a plurality of packets and the transmission data is transmitted to the network 470.
  • User device 440 displays data received from server device 430 on a display device, or inputs it into an application program to execute predetermined processing such as statistical processing.
  • FIG. 14 is a detailed block diagram of the extracting means 433.
  • the extraction means 433 includes a user-specific transmission timing definition unit 4331, a user-specific transmission data storage unit 4332, a first extraction unit 4333, and a second extraction unit 4334.
  • the user-specific transmission time definition unit 4331 exists corresponding to the user device 440.
  • the user-specific transmission timing definition unit 4331 holds definition information that defines the relationship between the transmission timing and the sensing data of the device 410 that is transmitted when the transmission timing is reached.
  • One definition information 43311 includes a condition identifier 43312, a transmission timing 43313, an allowable time 43314, and a device ID list 43315.
  • the condition identifier 43312 is a number or the like for identifying the definition information 43311.
  • the transmission time 43313 is a time condition for transmitting sensing data from the server device 430 to the user device 440.
  • There are a plurality of types of transmission timing 43313 such as scheduled transmission, periodic transmission, reception time difference transmission, individual arrival time transmission, individual arrival time zone transmission, and immediate transmission, but there may be other types.
  • Scheduled transmission indicates that transmission is performed at the time defined by the transmission timing.
  • Periodic transmission represents transmission at a time interval defined by the transmission timing. The starting point of the time interval is, for example, the activation time of the server device 430.
  • Reception time difference transmission indicates that transmission is performed so as to arrive at the user apparatus within a specified time from the reception time at the gateway apparatus.
  • the individual arrival time transmission indicates that transmission is performed so as to arrive at the user apparatus at a specified time.
  • the individual arrival time zone transmission indicates that transmission is performed so as to arrive at the user apparatus in the designated time zone.
  • Immediate transmission indicates that transmission is performed immediately after reception.
  • Allowable time 43314 represents a fluctuation range of time allowed for the transmission time 43313.
  • the reason for setting such a permissible time is that, in the case of sensing data that does not require immediacy, it is possible to transmit at the same transmission timing by allowing a slight time lag and allowing sufficient time for transmission. This is to increase the sensing data.
  • the device ID list 43315 is a list of IDs of the devices 410 to which the definition information 43311 is applied.
  • the definition information whose condition identifier is “01” in FIGS. 15 and 16 is “scheduled transmission (05 minutes per hour)” for the transmission time, “10 minutes” for the allowable time, and “0000 to 0009” for the device ID list. Is described.
  • the sensing data collected from the device 410 having any device ID of 0001 to 0009 is sent from the server device 430 to the user device 440 between 10 minutes before and 10 minutes after 05 minutes. It expresses the condition of sending.
  • a device ID value of 0000 may be excluded.
  • the definition information whose condition identifier is “02” in FIGS. 15 and 16 includes “periodic transmission (every 10 minutes)” as the transmission timing, “1 minute” as the allowable time, and “0010 to 0019” as the device ID list. Are listed.
  • This definition information includes the sensing data collected from the device 410 having any one of the device IDs 0010 to 0019 from the server device 430 to the user device 440 between the time when 9 minutes have elapsed and the time when 11 minutes have elapsed since the previous transmission cycle. Expresses the condition of sending to
  • This definition information includes the sensing data collected from the device 410 having any one of the device IDs 0020 to 0029, from the server device 430 to the user device 440 from the time when 13 minutes have passed since the previous transmission cycle until the time when 17 minutes have passed. Expresses the condition of sending to
  • This definition information includes the sensing data collected from the device 410 having any one of the device IDs 0030 to 0039, from the server device 430 to the user device 440 from the time when 58 minutes have passed since the previous transmission cycle to the time when 62 minutes have passed. Expresses the condition of sending to
  • the definition information with the condition identifier “05” in FIGS. 15 and 16 includes “transmission time difference reception (within 15 minutes)” for the transmission time, “1 minute” for the allowable time, and “0040-0049” for the device ID list. Is described.
  • This definition information is used from the server device 430 so that the sensing data collected from the device 410 having any one of the device IDs 0040 to 0049 arrives at the user device 440 within 16 minutes from the reception time of the gateway device 420. This represents a condition of transmission toward the person device 440.
  • “Individual arrival time transmission (20:05)” is set for the transmission time
  • “10 minutes” is set for the allowable time
  • “0050 to 0059” is set in the device ID list.
  • This definition information is used from the server device 430 so that the sensing data collected from the device 410 having any of the device IDs 0050 to 0059 arrives at the user device 440 between 19:55 and 20:15. This represents a condition of transmission toward the person device 440.
  • the definition information whose condition identifier is “07” in FIG. 16 is “individual arrival time zone transmission (19: 05-20: 05)” in the transmission time, “10 minutes” in the allowable time, and the device ID list. “0060-0069” is described.
  • This definition information is used from the server device 430 so that the sensing data collected from the device 410 having any device ID of 0060 to 0069 arrives at the user device 440 between 18:55 and 20:15. This represents a condition of transmission toward the person device 440.
  • This definition information represents a condition that the sensing data collected from the device 410 having any one of the device IDs 0070 to 0079 is transmitted from the server device 430 to the user device 440 as soon as possible. .
  • the contents of the plurality of user-specific transmission time definition units 4331 are not necessarily the same.
  • the reason is that the device 410 to be used is not the same for each user device 440.
  • the first extraction unit 4333 quickly extracts the sensing data of the device whose transmission timing is “immediate transmission” when stored in the storage unit 432, and transmits the communication unit as transmission data for immediate transmission.
  • 434 has a function of transmitting to 434.
  • the first extraction unit 4333 is activated by an interrupt or the like every time the communication unit 431 writes new sensing data in the storage unit 432.
  • the first extraction unit 4333 stores the sensing data 112 having the device ID 113 that matches the device ID described in the device ID list 43315 of the definition information 43331 of the transmission information 43313 as “immediate transmission”. Search from 432. Then, if the search is successful, the first extraction unit 4333 transmits the detected sensing data 112 to the communication unit 434 by designating the destination user device 440 as transmission data for immediate transmission.
  • the user-specific transmission data accumulation unit 4332 has a function of temporarily accumulating sensing data extracted by the second extraction unit 4334 as transmission data.
  • the data stored in the user-specific transmission data storage unit 4332 may be deleted from the transmission data storage unit 4332 when the transmission is completed.
  • the second extraction unit 4334 is activated at a predetermined cycle for each user device 440 that uses the transmission timing definition 4331 for each user.
  • This activation cycle is determined by the transmission time with the shortest time from the time of reception to the time of transmission. For example, excluding immediate transmission, the transmission timing having the shortest time from the reception time to the time at which transmission should be performed among the transmission timings shown in FIG. 15 is the condition identifier 02, and the minimum time is 1 minute. It is. Accordingly, the second extraction unit 4334 is activated at a cycle of one minute or less for the user device 440 of the transmission timing definition unit for each user 4331 shown in FIG. Similarly, in the transmission timing shown in FIG.
  • the transmission timing with the shortest time from the time of reception to the time of transmission is the condition identifier 02, and the shortest time is 1 minute.
  • the second extraction unit 4334 is activated at a cycle of one minute or less for the user device 440 of the transmission timing definition unit for each user 4331 shown in FIG.
  • the sensing data stored in the storage unit 432 can be transmitted from the sensing data of a device whose transmission timing is other than “immediate transmission” at the same transmission timing until the next activation point. Is extracted and stored in the user-specific transmission data storage unit 4332.
  • the second extraction unit 4334 has a function of designating and transmitting the data stored in the user-specific transmission data storage unit 4332 to the communication means 434 by specifying the destination user terminal 440 as one transmission data.
  • the second extraction unit 4334 when the second extraction unit 4334 is activated for the user device 440 that uses the user-specific transmission time definition unit 4331 shown in FIG. 15, the user-specific transmission time definition of FIG. Based on the transmission timing 43313 defined in the unit 4331 other than “immediate transmission”, the allowable time 43314, and the device ID list 43315, the transmission possible period is calculated for each sensing data stored in the storage unit 432, and the transmission is performed. Based on the possible period, sensing data that can be transmitted at the same transmission timing until the next activation time is extracted. In addition, when the second extraction unit 4334 is activated for the user device 440 that uses the user-specific transmission time definition unit 4331 illustrated in FIG.
  • the second extraction unit 4334 causes the user-specific transmission time definition unit 4331 of FIG. Based on the transmission timing 43313 other than the defined “immediate transmission”, the allowable time 43314, and the device ID list 43315, a transmission possible period is calculated for each sensing data stored in the storage unit 432, and the transmission possible period is calculated. Based on this, sensing data that can be transmitted at the same transmission timing until the next activation time is extracted. In any case, for example, the second extraction unit 4334 determines the transmission time based on the sensing data in which the end of the transmittable period arrives by the next activation time and the remaining time is the shortest, and the determined transmission Other sensing data having a transmittable period including time is extracted.
  • FIG. 17 is a flowchart showing an example of processing of the second extraction unit 4334.
  • the operation of the second extraction unit 4334 will be described with reference to FIG.
  • the second extraction unit 4334 selects the user-specific transmission timing definition unit 4331 and the user-specific transmission data storage unit 4332 corresponding to the user device 440 that has caused the activation (step S400). ). Next, the second extraction unit 4334 performs sensing based on the selected transmission timing definition unit for each user 4331 until the end of the transmittable period comes until the next activation for the same user device 440. Among the data, one piece of sensing data having the shortest remaining time until the end is searched from the storage unit 432 (step S401). If the second extraction unit 4334 fails in the search (NO in step S402), that is, if there is no sensing data in which the end of the transmittable period comes before the next activation, the second extraction unit 4334 Exit.
  • the second extraction unit 4334 determines the end of the transmission possible period of the sensing data searched in step S401 or a time before the predetermined time as the transmission timing Ts (Ste S403). Next, the second extraction unit 4334 extracts the sensing data searched in step S401 from the storage unit 432 and stores it in the user-specific transmission data storage unit 4332 selected in step S400 (step S404).
  • the second extraction unit 4334 searches the storage unit 432 for all sensing data that can be transmitted at the transmission timing Ts based on the selected user-specific transmission time definition unit 4331 (step S405). If the search is successful (YES in step S406), the second extraction unit 4334 extracts all the searched sensing data from the storage unit 432 and stores it in the selected user-specific transmission data storage unit 4332 (step S407). ). Then, the process proceeds to step S408. If the search fails (NO in step S406), the second extraction unit 4334 skips step S407 and proceeds to the process in step S408.
  • the second extraction unit 4334 monitors the arrival of the transmission timing Ts in step S408. Then, when the second extraction unit 4332 reaches the transmission timing Ts (YES in step S408), all the sensing data stored in the selected user-specific transmission data storage unit 4332 is extracted and combined into one transmission data. The destination of the user device 440 that has caused the activation is designated and output to the communication means 434 (step S409). Then, the second extraction unit 4334 ends the current process.
  • FIG. 18 is a conceptual diagram for explaining the operation of the second extraction unit 4334.
  • the sensing data stored in the storage unit 432 an example of sensing data that has not yet been transmitted to the user device 440 and their transmittable periods are shown.
  • the second extraction unit 4334 is activated every minute, and a scene activated at 7:56 is considered.
  • the second extraction unit 4334 When the second extraction unit 4334 is activated, it starts executing the processing shown in FIG. 17, and the sensing data in which the end of the transmittable period comes by 7:57, which is the next activation time, is stored in the storage means. 432 is detected (NO in steps S401 and S402), and the process of FIG. 17 is terminated.
  • the second extraction unit 4334 When the second extraction unit 4334 is activated, it starts the execution of the processing shown in FIG. 17 and is sensing data in which the end of the transmittable period comes by 7:58, which is the next activation time. Then, the sensing data 112-5 having the shortest remaining time until the end is searched from the storage means 432 (YES in steps S401 and S402). Therefore, the second extraction unit 4334 determines, for example, 7:57:30 as the transmission timing Ts based on the end of the transmittable period of the sensing data 112-5 (step S403). Then, the second extraction unit 4334 stores the sensing data 112-5 in a predetermined user-specific transmission data storage unit 4332 (step S404).
  • the transmission possible period of sensing data 112-1 and 112-3 includes a time of 7:57:30. Therefore, the second extraction unit 4334 extracts the sensing data 112-1 and 112-3 from the storage unit 432, and stores them in the user-specific transmission data storage unit 4332 (YES in step S406, S407).
  • the communication unit 434 transmits the received transmission data to the user device 440 whose destination is specified via the network 470.
  • the format of the transmission data combined into one is the same as the format shown in FIG. 9A or FIG. 9B, for example.
  • a fixed-length communication identifier 118 is added to each sensing data 112.
  • a fixed-length reception time 117 and a communication identifier 118 are added to each sensing data 112.
  • the communication identifier 118 has a field that describes an identification number that uniquely identifies sensing data constituting a pair. Further, the communication identifier 118 has a field describing the data length of the sensing data constituting the pair.
  • the user device 440 that has received the transmission data can recognize each sensing data based on the communication identifier 118. In the case of transmission data having the reception time 117, the user device 440 can recognize the time when the sensing data is received by the gateway device according to the reception time.
  • the second extraction unit 4334 completes the transmission to the user device 440.
  • the communication identifier 118 added to the data 112 is stored as a transmitted communication identifier corresponding to the user device 440.
  • the second extraction unit 4334 can recognize for each user whether or not the sensing data stored in the storage unit 432 has been transmitted by referring to the transmitted communication identifier.
  • the load on the network 470 between the server device 430 and the user device 440 can be reduced.
  • the server device 430 extracts sensing data that can be transmitted at the same transmission timing from sensing data of a plurality of devices having different transmission timings, and transmits the extracted sensing data to the user device 440. This is because the data is collected into one transmission data.
  • the server apparatus 430 calculates a transmittable period for each sensing data based on a transmission timing defined for each device and a predefined allowable time, and the same transmission timing based on the transmittable period. This is because it extracts sensing data that can be transmitted by.
  • sensing data that is immediately transmitted by the transmission timing can be transmitted from the server device 430 to the user device 440 as soon as possible.
  • the server device 430 is configured to promptly transmit the sensing data immediately transmitted from the gateway device 420 to the user device 440 via the network 470.
  • a sensor data collection system 500 includes a plurality of devices 510 having sensors 511, a gateway device 520 that collects sensing data of the sensors 511 from the devices 510, and sensing data from the gateway devices 520.
  • the gateway device 520 includes a storage unit 521 and an extraction unit 522.
  • the storage unit 521 has a function of storing sensing data collected from the device 510.
  • the extraction unit 522 has a function of extracting sensing data that can be transmitted at the same transmission timing from the sensing data of a plurality of devices having different transmission times stored in the storage unit 521, and the extracted sensing data to the server device 530. And a function for collecting data into one transmission data for transmission.
  • the server device 530 includes a storage unit 531 and an extraction unit 532.
  • the storage unit 531 has a function of storing sensing data collected from the device 510 through the gateway device 520.
  • the extraction unit 532 also has a function of extracting sensing data that can be transmitted at the same transmission timing from sensing data of a plurality of devices having different transmission timings stored in the storage unit 531, and the user device 540 uses the extracted sensing data. And a function for collecting the data into one transmission data for transmission to the network.
  • the sensor data collection system 500 operates as follows.
  • the device 510 transmits the sensing data of the sensor 511 to the gateway device 520 (step S501).
  • the gateway device 520 receives the sensing data from the device 510 (step S502) and stores it in the storage unit 521 (step S503).
  • the gateway device 520 uses the extraction unit 522 to extract sensing data that can be transmitted at the same transmission timing from the sensing data of a plurality of devices having different transmission times stored in the storage unit 521, and the server device The data is collected into one transmission data for transmission to 530 (step S504).
  • the gateway device 520 transmits the transmission data to the server device 530 (step S505).
  • the server device 530 receives the data including the sensing data from the gateway device 520 (step S506) and stores it in the storage unit 531 (step S507).
  • the server device 530 can use the extraction unit 532 to perform sensing that can be transmitted to the user device 540 at the same transmission timing from sensing data of a plurality of devices having different transmission times stored in the storage unit 531. Data is extracted and combined into one transmission data for transmission to the user device 540 (step S508).
  • the server device 530 transmits the transmission data to the user device 540 (step S509).
  • User device 540 receives the data transmitted from server device 530 (step S510).
  • the storage unit 521 and the extraction unit 522 are provided in the gateway device 520, and the storage unit 531 and the extraction unit 532 are provided in the server device 530.
  • the storage unit 521 and the extraction unit 522 may be provided in the gateway device 520, and the storage unit 531 and the extraction unit 532 may not be provided in the server device 530.
  • the storage unit 531 and the extraction unit 532 may be deployed in the server device 530 without deploying the storage unit 521 and the extraction unit 522 in the gateway device 520.
  • the operation of the sensor data collection system 500 in which the storage unit 521 and the extraction unit 522 are provided in the gateway device 520 and the storage unit 531 and the extraction unit 532 are not provided in the server device 530 will be described. To do.
  • the device 510 transmits the sensing data of the sensor 511 to the gateway device 520 (step S501).
  • the gateway device 520 receives the sensing data from the device 510 (step S502) and stores it in the storage unit 521 (step S503).
  • the gateway device 520 uses the extraction unit 522 to extract sensing data that can be transmitted at the same transmission timing from the sensing data of a plurality of devices having different transmission times stored in the storage unit 521, and the server device The data is collected into one transmission data for transmission to 530 (step S504).
  • the gateway device 520 transmits the transmission data to the server device 530 (step S505).
  • the server device 530 transmits the received data to the user device 540 (step S509).
  • User device 540 receives the data transmitted from server device 530 (step S510).
  • the operation of the sensor data collection system 500 in which the storage unit 521 and the extraction unit 522 are not provided in the gateway device 520 but the storage unit 531 and the extraction unit 532 are provided in the server device 530 will be described.
  • the device 510 transmits the sensing data of the sensor 511 to the gateway device 520 (step S501).
  • the gateway device 520 receives the sensing data from the device 510 (step S502), and transmits the received data to the server device 530 (step S505).
  • the server device 530 receives the data including the sensing data from the gateway device 520 (step S506) and stores it in the storage unit 531 (step S507).
  • the server device 530 can use the extraction unit 532 to perform sensing that can be transmitted to the user device 540 at the same transmission timing from sensing data of a plurality of devices having different transmission times stored in the storage unit 531. Data is extracted and combined into one transmission data for transmission to the user device 540 (step S508).
  • the server device 530 transmits the transmission data to the user device 540 (step S509).
  • User device 540 receives the data transmitted from server device 530 (step S510).
  • the gateway device 520 can perform sensing at the same transmission timing from sensing data of a plurality of devices having different transmission timings. Since the data is extracted and the extracted sensing data is collected into one transmission data for transmission to the server device 530, the load on the network between the gateway device 520 and the server device 530 can be reduced.
  • the server device 530 can transmit at the same transmission timing from sensing data of a plurality of devices having different transmission timings. Since the sensing data is extracted and the extracted sensing data is collected into one transmission data for transmission to the user device 540, the load on the network between the server device 530 and the user device 540 can be reduced. .
  • the gateway device or the server device calculates the transmission period of sensing data based on the transmission timing defined for the device and the predefined allowable time.
  • the gateway device or the server device may calculate the transmittable period without considering the allowable time. That is, the gateway device or the server device may calculate the transmission period of sensing data based on the transmission timing defined for the device. For example, in periodic transmission every 10 minutes and every 15 minutes, the transmission timings of both coincide with each other every 30 minutes, so that they can be combined into one transmission data. Further, for example, there is a possibility that periodic transmission cycles of every 10 minutes and every 15 minutes may arrive during a transmission possible period of reception time difference transmission within 10 minutes, and these can be combined into one transmission data.
  • the server device may be an M2M platform, for example, which is an M2M platform and is defined in oneM2M that performs standardization on the Machine-to-Machine service.
  • M2M Service Infrastructure corresponds to IN (Infrastructure Node) in the oneM2M architecture.
  • the M2M Service Infrastructure has a CSE (Common Services ⁇ Entity) that provides a common service function (CSF) group defined by the oneM2M.
  • the server device may be a device including a plurality of CSEs.
  • the CSE that IN has is also referred to as IN (InfrastructurefraNode) -CSE.
  • the network between the gateway device and the server device is, for example, a mobile communication network provided by a communication carrier, and may be an Underlying Network defined in oneM2M.
  • the device may be a sensor device, for example, and may be an M2M Device defined in oneM2M.
  • M2M Device corresponds to ASN (Application Service Node) or ADN (Application Dedicated Node) in the oneM2M architecture, and ASN has CSE.
  • the CSE in the ASN is also referred to as ASN-CSE.
  • the user device may be, for example, a server that processes a specific job, and may be an M2M Application Infrastructure defined in oneM2M.
  • the user device may have an AE (Application Entity) in the oneM2M architecture.
  • AE Application Entity
  • an AE in the Infrastructure Domain defined by oneM2M and connected to IN-CSE is also referred to as IN (Infrastructure Node) -AE.
  • the gateway device may be an M2M Gateway defined in oneM2M.
  • the M2M Gateway is equivalent to a MN (Middle Node) in the oneM2M architecture and has a CSE.
  • the CSE in the MN is also referred to as MN-CSE.
  • the present invention can be used for all sensor network systems.
  • a part or all of the above embodiments can be described as in the following supplementary notes, but is not limited thereto.
  • Appendix 1 A plurality of devices having sensors, a gateway device that collects sensing data of the sensor from the devices, a server device that collects the sensing data from the gateway device, and a user device that collects the sensing data from the server device And consists of At least one of the gateway device and the server device is Storage means for storing the sensing data collected from the device; Extraction means for extracting the sensing data that can be transmitted at the same transmission timing from the sensing data of a plurality of devices having different transmission timings stored in the storage means, and collecting the extracted sensing data into one transmission data
  • a sensor data collection system comprising: [Appendix 2] A plurality of devices having sensors, a gateway device that collects sensing data of the sensor from the devices, a server device that collects the sensing data from the gateway device, and a user device that collects the sensing data from the server device
  • a gateway device that collects sensing data of the sensor from a plurality of devices having a sensor and transmits the collected sensing data to a server device, Storage means for storing the sensing data collected from the device; Extracting the sensing data that can be transmitted at the same transmission timing from the sensing data of a plurality of devices having different transmission times stored in the storage means, and transmitting the extracted sensing data to the server device Extraction means for combining the data into one transmission data;
  • the gateway device according to attachment 3.
  • the extraction means can calculate a transmission possible period of the sensing data based on the transmission timing defined for the device and a predefined allowable time, and can transmit at the same transmission timing based on the transmission possible period. Extracting the sensing data; The gateway device according to attachment 3.
  • the extraction means determines a transmission time based on the sensing data having the shortest remaining time until the end of the transmittable period, and extracts the other sensing data having the transmittable period including the determined transmission time To The gateway device according to appendix 4 or 5.
  • a computer constituting a gateway device that collects sensing data of the sensors from a plurality of devices having sensors and transmits them to a server device, Storage means for storing the sensing data collected from the device; Extracting the sensing data that can be transmitted at the same transmission timing from the sensing data of a plurality of devices having different transmission times stored in the storage means, and transmitting the extracted sensing data to the server device Extraction means for combining the data into one transmission data; Program to make it function.
  • a server device that collects sensing data of the sensor from a plurality of devices having sensors and transmits the collected data to a user device, Storage means for storing the sensing data collected from the device; Extracting the sensing data that can be transmitted at the same transmission timing from the sensing data of a plurality of devices having different transmission timings stored in the storage means, and transmitting the extracted sensing data to the user device Extraction means for combining the data into one transmission data, A server device.
  • the extraction means calculates a transmission possible period of the sensing data based on the transmission timing defined for the device for each user, and the sensing data that can be transmitted at the same transmission timing based on the transmission possible period. Extract, The server device according to attachment 8.
  • the extraction means calculates a transmission possible period of the sensing data based on the transmission timing defined for the device for each user and a predefined allowable time, and the same transmission based on the transmission possible period Extracting the sensing data that can be transmitted at the timing; The server device according to attachment 8.
  • the extraction means determines a transmission time based on the sensing data having the shortest remaining time until the end of the transmittable period, and extracts the other sensing data having the transmittable period including the determined transmission time To The server device according to appendix 9 or 10.
  • a computer constituting a server device that collects sensing data of the sensors from a plurality of devices having sensors and transmits them to a user device, Storage means for storing the sensing data collected from the device; Extracting the sensing data that can be transmitted at the same transmission timing from the sensing data of a plurality of devices having different transmission timings stored in the storage means, and transmitting the extracted sensing data to the user device Extraction means for combining the data into one transmission data, Program to make it function.
  • DESCRIPTION OF SYMBOLS 100 ... Sensor data collection system 110 ... Device 111 ... Sensor 112 ... Sensing data 113 ... Device ID 114 ... Sensor ID 115 ... detection time 116 ... detection value 117 ... reception time 118 ... communication identifier 120 ... gateway device 121 ... communication means 122 ... storage means 123 ... extraction means 124 ... communication means 130 ... server device 131 ... database 132 ... processing means 140 ... use Network device 160 ... network 170 ... network 170 ... information processing device 181 ... arithmetic processing unit 182 ... storage unit 183 ... first communication module 184 ... second communication module 185 ... program 212 ... sensing data 213 ... device ID 214 ...

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  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention porte sur un système de collecte de données de capteurs qui est constitué d'une pluralité de dispositifs comportant des capteurs, d'un dispositif passerelle pour collecter des données de détection des capteurs auprès des dispositifs, d'un appareil serveur pour collecter les données de détection auprès du dispositif passerelle, et d'un appareil utilisateur pour collecter les données de détection auprès de l'appareil serveur. Le dispositif passerelle et/ou l'appareil serveur comprennent un moyen de stockage pour stocker les données de détection collectées auprès des dispositifs, et un moyen d'extraction pour extraire des données de détection pouvant être transmises au même moment de transmission à partir des données de détection de la pluralité de dispositifs stockées dans le moyen de stockage et ayant différents moments de transmission, et combiner les données de détection extraites en un élément de données de transmission.
PCT/JP2016/077443 2015-11-27 2016-09-16 Système de collecte de données de capteurs WO2017090306A1 (fr)

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JP2019071573A (ja) * 2017-10-10 2019-05-09 株式会社ソラコム ＩｏＴ機器とのデータの送受信を行うための装置、方法及びプログラム
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JP2019159951A (ja) * 2018-03-14 2019-09-19 オムロン株式会社 センサ管理装置、センサ情報同期方法、制御プログラム、及び記録媒体
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CN113434306A (zh) * 2021-05-21 2021-09-24 深圳市富能新能源科技有限公司 信息采集方法、系统、终端设备及计算机存储介质

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