JP5210535B2 - Data collection system - Google Patents

Description

  The present invention relates to a data collection system, and more particularly to a data collection system for detecting outdoor environmental information.

With the recent introduction of IT, information communication technology using an electric communication line (network) such as the Internet is utilized in various fields. For example, a data collection device that detects information on the surrounding environment is installed at a remote location, and the information from this data collection device is aggregated and managed centrally via a telecommunication line, or data collection It is possible to browse information collected by the device at home. As an example, such a data collection device is installed on a farmland (farm), and collects various information such as environmental information such as temperature, humidity, and solar radiation, information on the growth of agricultural products, and work information such as application of agricultural chemicals. (For example, refer to Patent Document 1).
JP 2006-42721 A

  By the way, in such a data collection system, it is conceivable to install a plurality of data collection devices in the installation area. However, if each data collection device communicates individually with the central server, the central server side There is a risk that the signals will collide. In addition, since each of the data collection devices consumes power, when the number of installations increases, there is a problem that overall power consumption increases and an economic burden increases.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a data collection system that suppresses signal collision in an external device that receives information from individual data collection devices, and considers energy saving. Is to provide.

  In order to solve such problems, the present invention provides a main data collection device that is provided outdoors in a data collection system, collects environmental information in a predetermined area, and transmits the collected information via a network, and the outdoors. A sub-data collection device that collects environmental information of a predetermined area corresponding to the main data collection device, and relays communication between the main data collection device and the sub-data collection device; A relay device that supplies driving power; and an external device that receives information transmitted by the main data collection device via a network. Here, the main data collection device manages the power state in the sub data collection device via the relay device, and receives the information collected by the sub data collection device via the relay device, thereby Along with the information collected by itself, it is transmitted to the external device via the network.

  Further, in the present invention, the main data collection device controls the power supply of the relay device to an ON state at every predetermined period, and supplies the drive power to the sub data collection device, thereby powering the sub data collection device. It is set to the on state, and a transmission request for the collected information is transmitted to the sub data collection device via the relay device.

  In the present invention, when the external device receives the information transmitted from the main data collection device via the network, the external device transmits a reception completion signal to the main data collection device via the network. When the reception completion signal transmitted from the external device is received via the network, the sub data is controlled by turning off the power of the relay device and stopping the supply of driving power to the sub data collection device. Set the collector power to the off state.

  In the present invention, when the main data collection device receives information corresponding to the transmission request from the sub data collection device via the relay device, the main data collection device transmits a reception completion signal to the sub data collection device via the relay device, The sub data collection device controls its power supply to the off state on condition that the reception completion signal transmitted from the main data collection device is received via the relay device.

  Further, in the present invention, when the external device receives the information transmitted from the main data collection device via the network, the external device transmits a reception completion signal to the main data collection device via the network, and the main data collection device Controls the power supply of the relay device to an off state on condition that the reception completion signal transmitted from the external device is received via the network.

  According to the present invention, the sub data collection device is configured to receive power from the relay device, and power management of the sub data collection device can be performed on the main data collection device side. Therefore, since the power supply of the sub data collection device is not kept on, it is possible to suppress the power consumption and to realize energy saving as the entire system. In addition, since the main data collection device collectively transmits the information collected by the sub data collection device to the external device, signal collision in the external device is suppressed as compared with the case where each data collection device transmits individually. be able to.

(First embodiment)
FIG. 1 is a block diagram showing an overall configuration of a data collection system 1 according to an embodiment of the present invention. A data collection system 1 according to the present embodiment includes a farmer computer (hereinafter referred to as “farmer PC”) 2 provided on the farmer side, a farmland system 3 provided on the farmland, and a tabulation / analyzer side. The server 7 is provided as a main component. In this data collection system 1, the farmer-side PC 2, the farmland-side system 3, and the server 7 are configured to be able to communicate information with each other via an electric communication line (network) such as the Internet.

  The farmer-side PC 2 is configured by a general-purpose information processing device such as a personal computer, a mobile phone, or a PDA (Personal Digital Assistant). This farmer-side PC 2 browses various information (specifically, collected data) held by the server 7 or the farmland-side system 3 (specifically, a main data collecting device 4 described later) via an electric communication line or Or download it.

  The farmland side system 3 is installed in a farmland for growing crops, and collects information related to farming and crops in the farmland. This farmland side system 3 can perform information communication with the farmer side PC 2 or the server 7 via an electric communication line. The farmland side system 3 is mainly composed of a main data collection device (field server) 4, one or more sub data collection devices (field server) 5, and a relay device 6, and a predetermined area (for example, farmland) ), These elements are installed in one set. The main data collection device 4 and the individual sub data collection devices 5 have a function of collecting information on farmland and crops in the farmland, and details thereof will be described later.

  The relay device 6 is, for example, a relay device (switch or hub) compatible with a communication standard such as Ethernet (registered trademark), and each sub data collection device 5 is connected to a port included in the relay device 6 via a cable. ing. The relay device 6 has a function as a switch unit 6a (see FIG. 4 to be described later) that relays communication between the main data collection device 4 and each sub data collection device 5. That is, in the farmland side system 3, a network segmented for each farmland is constructed. For example, the main data collection device 4 can identify each sub data collection device 5 based on the port number of the relay device 6 or the like. In addition, the relay device 6 has a function as a power feeding unit (see FIG. 4 described later) that supplies driving power to the individual sub data collection devices 5. As a technique for supplying power using a cable used for Ethernet (registered trademark) wiring, for example, a technique standardized as IEEE 802.3af can be used.

  The server 7 is configured by a general-purpose information processing device such as a workstation. This server receives information collected by the farmland side system 3, aggregates the received information in a predetermined format for each farm, and analyzes the aggregated information using an analysis method such as statistical processing. It is possible to extract information related to the optimal growth conditions for the farmland and the crop, and to realize a function of transmitting the extracted information to the farmer-side PC 2.

  FIG. 2 is a perspective view schematically showing the external appearance of the main data collection device 4 and the sub data collection device 5. The main data collection device 4 and the sub data collection device 5 have basically the same system configuration. Hereinafter, the system configuration common to both will be described by exemplifying the main data collection device 4. The main data collection device 4 is mainly composed of a main unit 40, and the main unit 40 is installed on farmland. The main body unit 40 includes a main body housing 40a having a rectangular shape as a whole, and leg portions 40b that are connected to the bottom side of the main body housing 40a and support the main body housing 40a. The support column 40c is fixedly installed independently of the main unit 40, and a camera unit 60 and a temperature / humidity sensor 71, which are one of detection means described later, are attached to the upper portion of the support column 40c.

  FIG. 3 is a block diagram functionally showing the overall configuration of the main data collection device 4 (sub data collection device 5) according to the present embodiment. When the main data collection device 4 grasps this functionally, the data control unit 41, the data collection unit 42, the data calculation unit 43, the data storage unit 44, the data display unit 45, and the communication control unit 46. A communication unit 47, a sensor interface (sensor I / F) unit 48, a power supply unit 49, an internal environment control unit 50, and an internal environment measurement unit 51.

  The data control unit 41 performs a numerical calculation, information processing, device control, and the like, and has a function of comprehensively controlling the operation of the main data collection device 4. In relation to the present embodiment, the data control unit 41 performs internal processing for data output from the data collection unit 42. Specifically, the data control unit 41 stores information generated by the data calculation unit 43 in the data storage unit 44 or displays it on the data display unit 45. Further, the data control unit 41 reads information stored in the data storage unit 44 and outputs it to the communication control unit 46.

  The data collection unit 42 automatically collects the image data from the camera unit 60 and the sensor data from the various sensors 70 to 77 via the sensor I / F unit 48 at a preset cycle. The data collected by the data collection unit 42 is output to the data calculation unit 43.

  The data calculation unit 43 targets each of various sensor data output from the data collection unit 42 as a target, and the sensor signal (voltage value, etc.) is in a predetermined format (for example, temperature) that can be understood by the user. By converting, it has a function of generating data (hereinafter referred to as “collected data”). The collected data generated in the data calculation unit 43 is output to the data control unit 41.

  The data storage unit 44 has a function of storing collected data. When the collected data is output from the data calculation unit 43 to the data control unit 41, the data control unit 41 stores this in the data storage unit 44. In the data storage unit 44, for example, the time and date when the data is acquired are stored in association with the collected data for each data.

  The data display unit 45 is controlled by the data control unit 41 and has a function of displaying collected data output from the data calculation unit 43. For example, a liquid crystal display can be used as the data display unit 45 and is attached to the main body housing 40 a of the main body unit 40. The data display unit 45 allows the collected data to be viewed in real time on the farmland.

  When the communication control unit 46 acquires the collected data output from the data control unit 41, the communication control unit 46 transmits the collected data from the communication unit 47 via the electric communication line.

  The communication unit 47 has a function of communicating with the server 7, the farmer-side PC 2, the relay device 6, or the sub data collection device 5, and specifically, for example, a communication standard such as Ethernet (registered trademark). Constructed with a compliant interface. Note that the communication via the communication unit 47 is not limited to TCP / IP-based communication, and a non-IP field bus or the like can also be used.

  The sensor I / F unit 48 is an interface to which detection means such as the camera unit 60 and various sensors 70 to 77 for detecting information on farmland and farm products on the farmland is connected.

  The power supply unit 49 receives power from a power source such as a solar panel, a 100V power supply, a 12V battery, and the like, thereby supplying power to each part of the system of the main unit 40 and controlling the power state.

  The internal environment control unit 50 has a function of controlling the internal environment so that an electronic component housed therein does not malfunction due to a change in the internal environment of the main body housing 40a due to a change in outside air temperature or rain and ice. ing. The internal environment control part 50 is based on the measurement result from the internal environment measurement part 51 which measures internal environments, such as a temperature / humidity sensor, a fan (not shown), a heating apparatus (not shown), and a cooling device (not shown). ) Is controlled to control the internal environment to a predetermined environment.

  A camera unit 60 and various sensors 70 to 77 are connected to the main data collection device 4 via a sensor I / F unit 48. In the present embodiment, the camera unit 60 and the various sensors 70 to 77 function as detection means for detecting information relating to farmland and crops in the farmland.

  The camera unit 60 is mainly composed of a camera 61 and a power supply unit 62 for driving the camera 61, and these elements are accommodated in the housing. The camera unit 60 is attached to a column 40 c that is independent of the main unit 40. The camera 61 has a built-in image sensor (for example, a CCD or CMOS sensor), and has a function of capturing an image of a farmland and a landscape including a crop on the farmland and outputting the image data as image data. The power supply unit 62 has a function of driving the camera unit 60 by receiving power supply from a power source such as a solar panel or a 12V battery.

  The camera unit 60 also includes an internal environment control unit 63 that controls the internal environment, like the main unit 40. The internal environment control unit 63 is based on a measurement result from an internal environment measurement unit 64 that measures an internal environment such as a temperature / humidity sensor, a fan (not shown), a heating device (not shown), and a cooling device (not shown). ) Is controlled to control the internal environment to a predetermined environment.

  The temperature / humidity sensors 70 to 72 are sensors for detecting temperature and humidity, and a platinum resistance thermometer type (temperature), a capacitive polymer type (humidity), and the like can be used. For example, the temperature / humidity sensor 70 is laid out inside the housing of the main unit 40 and detects the temperature and humidity of the air taken from the outside to the inside of the housing. The temperature / humidity sensor 71 is attached to the outside of the main unit 40, for example, a support column 40c to which the above-described camera unit 60 is attached, and detects temperature and humidity in farmland. Moreover, the temperature / humidity sensor 72 is installed in the location different from the temperature / humidity sensor 71 in farmland, and detects the temperature and humidity in farmland.

The soil temperature sensor 73 is a sensor that detects the soil temperature in farmland. The soil moisture sensor 74 is a sensor that detects soil moisture in farmland. For example, an electrical resistance type sensor can be used. The soil EC sensor 75 is a sensor that detects the fertilizer content tendency existing in the soil of farmland using the electrical conductivity. The solar radiation amount sensor 76 is a sensor for detecting the total solar radiation amount on the ground surface, and a thermocouple type or the like can be used. CO2 sensor 77 is a sensor for detecting the CO ₂ concentration, or the like can be used individual polymer type.

  Based on such a basic system configuration, a system configuration unique to the main data collection device 4 and the sub data collection device 5 will be described below. First, in the main data collection device 4, the data control unit 41 manages the power supply state in each sub data collection device 5 via the relay device 6. In addition, the data control unit 41 transmits a collection data transmission request to the sub data collection device 5 via the relay device 6, and receives information collected by the sub data collection device 5 via the relay device 6. Therefore, the data storage unit 44 also stores the collected data transmitted from the sub data collecting device 5. The data control unit 41 outputs the collected data collected by each sub-data collection device 5 to the communication control unit 46 together with the collected data collected by itself, and the communication control unit 46 connects the communication line from the communication unit 47 to the electric communication line. To the external device (in this embodiment, the server 7).

  In addition to this, in the main data collection device 4, when the communication control unit 46 receives a collection data transmission request transmitted from the farmer-side PC 2 via the communication unit 47, it is designated in the transmission request. The data control unit 41 is requested to collect data for a predetermined period. When the communication control unit 46 acquires the collected data from the data control unit 41, the communication control unit 46 transmits the collected data to the farmer-side PC 2 that has transmitted the transmission request from the communication unit 47 via the electric communication line.

  On the other hand, in the sub data collection device 5, the communication unit 47 also has a function of receiving driving power from the relay device 6, and the power supply unit 49 receives power from the relay device 6 and supplies power to each part of the system. Supply. Further, in the sub data collection device 5, the data collection unit 42, when its own power supply is turned on, the image data from the camera unit 60 and the sensors from the various sensors 70 to 77 via the sensor I / F unit 48. Collect data. The collected information is output to the data control unit 41 via the data calculation unit 43 and stored in the data storage unit 44 by the data control unit 41. When the data control unit 41 receives a collection data transmission request from the main data collection device 4, the data control unit 41 reads the collection data stored in the data storage unit 44 and outputs it to the communication control unit 46. The control unit 46 transmits the collected data from the communication unit 47 to the main data collecting device 4 via the relay device 6.

  FIG. 4 is a timing chart showing a procedure of data collection processing of the data collection system 1 according to the first embodiment of the present invention. As a premise for explaining this process, the main data collection device 4 (specifically, the data control unit 41) controls the power supply of the relay device 6 to the off state. For this reason, the power supply to the individual sub data collection devices 5 connected to the relay device 6 is also stopped, and the power of each of the sub data collection devices 5 is also turned off.

  First, in step 1 (S1), the main data collection device 4 transmits a power-on instruction to the relay device 6. This power-on instruction is transmitted in correspondence with data collection in the data collection unit 42 in the main data collection device 4.

  In step 2 (S2), when the power supply of the relay device 6 is turned on in response to the power-on instruction from the main data collection device 4, each sub-data collection device 5 (power supply unit) is fed from the power supply unit 6b of the relay device 6. 49) is supplied with driving power. Corresponding to this, each sub-data collection device 5 is turned on, and power is supplied from the power supply unit 49 to each part of the system, so that each sub-data collection device 5 becomes operable.

  In step 3 (S3), the main data collection device 4 is a sub-data collection device 5 (for example, among the sub-data collection devices 5 connected to the relay device 6 in the sub-data collection device 5 existing in the same segment). The collection data transmission request is transmitted to the sub data collection device 5) having the smallest port number connected to the relay device 6.

  In step 4 (S4), in the sub data collection device 5 that has received the transmission request, the data control unit 41 receives a predetermined amount of collected data stored in the data storage unit 44 (for example, for the main data collection device 4). Uncollected collected data) is read and output to the communication control unit 46. The communication control unit 46 transmits the acquired collection data from the communication unit 47 to the main data collection device 4 via the relay device 6. When the collected data is acquired by the main data collecting device 4, the data control unit 41 of the main data collecting device 4 uses the received collected data as the ID of the sub data collecting device 5 that transmitted the data (for example, the relay device 6). Port number) and stored in the data storage unit 44.

  In step 5 (S5) to step 8 (S8), as in steps 3 and 4, the main data collection device 4 outputs a collection data transmission request to the sub-data collection device 5 that has not collected data. Then, a series of operations for receiving the collection data from the sub data collection device 5 is sequentially executed on the sub data collection devices 5 existing in the same segment.

  In step 9 (S9), the data control unit 41 of the main data collection device 4 collects a predetermined amount of collected data stored in the data storage unit 44 (for example, collected data for the unsent to the server 7 (self Collected data and collected data transmitted from each sub-data collection device 5))) and read this out to the communication control unit 46. The communication control unit 46 transmits the acquired collected data from the communication unit 47 to the server 7 via the electric communication circuit.

  In step 10 (S10), when the server 7 receives the data transmitted from the main data collection device 4, the server 7 stores the data in a storage unit (not shown) and transmits a reception completion signal to the main data collection device 4. .

  In step 11 (S11), when the main data collection device 4 obtains the reception completion signal from the server 7, it transmits a power-off instruction to the relay device 6.

  In step 12 (S12), the relay device 6 supplies driving power from the power supply unit 6b to each sub data collection device 5 (power supply unit 49) in response to the power-off instruction from the main data collection device 4. While stopping, it controls its own power supply to the off state. Thereby, each sub-data collection device 5 is in a state where the power is turned off and the operation is stopped.

  The main data collection device 4 performs a series of operations starting from step 1 after a predetermined time has elapsed, that is, when the next data collection timing is reached.

  As described above, in this embodiment, the data collection system 1 includes the main data collection device 4, the sub data collection device 5, the relay device 6, and the external device (the server 7 in the present embodiment). . Here, the main data collection device 4 is provided outdoors (in this embodiment, a farm), collects environmental information of a predetermined area (in this embodiment, information on farmland and farm products in the farmland), and via a network. Send the collected information. The sub data collection device 5 is provided outdoors and collects environmental information of a predetermined area corresponding to the main data collection device 4. The relay device 6 relays communication between the main data collection device 4 and the sub data collection device 5 and supplies drive power to the sub data collection device 5. The external device receives the information transmitted by the main data collection device 4 via the network. In this case, the main data collection device 4 manages the power state in the sub data collection device 5 via the relay device 6 and receives information collected by the sub data collection device 5 via the relay device 6. The received information is transmitted to the external device via the network together with the information collected by itself.

  According to such a configuration, the sub data collection device 5 is configured to receive power from the relay device 6, and the power management of the sub data collection device 5 can be performed on the main data collection device 4 side. As a result, the power consumption of the sub-data collection device 5 can be suppressed, so that energy saving as a whole system can be realized. In addition, since the main data collection device 4 collectively transmits the information collected by the sub data collection device 5 to the server 7, the signal collision in the server 7 is compared with the case where each data collection device transmits individually. Can be suppressed.

  Further, in the present embodiment, the main data collection device 4 controls the power supply of the relay device 6 to be in an ON state at every predetermined period, and supplies drive power to the sub data collection device 5, thereby collecting the sub data. The power supply of the device 5 is set to an on state, and a transmission request for the collected information is transmitted to the sub data collection device 5 via the relay device 6.

  According to such a configuration, when information is requested to the sub data collection device 5, the power of the sub data collection device 5 is turned on, so that unnecessary power consumption on the sub data collection device 5 side is suppressed. Can do. Thereby, the energy saving as the whole system is realizable.

  In this case, when the external device receives information transmitted from the main data collection device 4 via the network, the external device transmits a reception completion signal to the main data collection device 4 via the network. When the main data collection device 4 receives the reception completion signal transmitted from the external device via the network, the main data collection device 4 controls the relay device 6 to be turned off to supply the driving power to the sub data collection device 5. By stopping, the power supply of the sub data collection device 5 is set to the off state.

  According to such a configuration, when the transmission of the data collected by the sub data collection device 5 and the main data collection device 4 to the external device is completed, the power of the sub data collection device 5 is turned off. Unnecessary power consumption on the data collection device 5 side can be suppressed. Thereby, the energy saving as the whole system is realizable.

(Second Embodiment)
FIG. 5 is a timing chart showing a procedure of data collection processing of the data collection system 1 according to the second embodiment of the present invention. The data collection system 1 according to this embodiment differs from that of the first embodiment in the procedure of data collection processing. Note that the system configuration of the data collection system 1 is basically the same as that of the first embodiment, and the description that is duplicated by quoting the reference numerals will be omitted. Hereinafter, the differences will be mainly described.

  First, in step 20 (S20), the main data collection device 4 transmits a power-on instruction to the relay device 6. This power-on instruction is transmitted in correspondence with data collection in the data collection unit 42 in the main data collection device 4.

  In step 21 (S21), when the power supply of the relay device 6 is turned on in response to the power-on instruction from the main data collection device 4, each sub-data collection device 5 (power supply unit) is supplied from the power supply unit 6b of the relay device 6. 49) is supplied with driving power. Corresponding to this, each sub-data collection device 5 is turned on, and power is supplied from the power supply unit 49 to each part of the system, so that each sub-data collection device 5 becomes operable.

  In steps 22 to 24 (S22 to S24), the main data collection device 4 collects data for each of the sub data collection devices 5 existing in the same segment, that is, each of the sub data collection devices 5 connected to the relay device 6. Send a send request.

  In steps 25 to 27 (S25 to S27), in the sub data collection device 5 that has received the transmission request, the data control unit 41 stores a predetermined amount of collection data (for example, the main data collection device) stored in the data storage unit 44. 4 is collected to the communication control unit 46. The communication control unit 46 transmits the acquired collection data from the communication unit 47 to the main data collection device 4 via the relay device 6. When the collected data is acquired by the main data collecting device 4, the data control unit 41 of the main data collecting device 4 uses the received collected data as the ID of the sub data collecting device 5 that transmitted the data (for example, the relay device 6). Port number) and stored in the data storage unit 44.

  In steps 28 to 30 (S28 to S30), the main data collection device 4 transmits a reception completion signal to each of the sub data collection devices 5 that have transmitted the collection data. When each sub-data collection device 5 receives the reception completion signal, the data control unit 41 controls the power supply unit 49 to turn off its own power supply. Thereby, each sub data collection device 5 will be in the state where operation stopped.

  In step 31 (S31), the data control unit 41 of the main data collection device 4 collects a predetermined amount of collected data stored in the data storage unit 44 (for example, collected data that has not been transmitted to the server 7). (Collected data collected by itself and collected data transmitted from each sub-data collecting device 5)), and outputs it to the communication control unit 46. The communication control unit 46 transmits the acquired collected data from the communication unit 47 to the server 7 via the electric communication circuit.

  In step 32 (S32), when the server 7 receives the data transmitted from the main data collection device 4, the server 7 stores the data in a storage unit (not shown) and transmits a reception completion signal to the main data collection device 4. .

  In step 34 (S34), when the main data collection device 4 obtains the reception completion signal from the server 7, it transmits a power-off instruction to the relay device 6.

  In step 35 (S35), the relay device 6 controls its power supply to the off state in response to the power-off instruction from the main data collection device 4.

  The main data collection device 4 performs a series of operations starting from step 20 after a predetermined time has elapsed, that is, when the next data collection timing is reached.

  As described above, in the present embodiment, the main data collection device 4 controls the power supply of the relay device 6 to the on state and supplies the drive data to the sub data collection device 5 every predetermined cycle, thereby The collection device 5 is turned on, and a transmission request for the collected information is transmitted to the sub data collection device 5 via the relay device 6. When the main data collection device 4 receives information corresponding to the transmission request from the sub data collection device 5 via the relay device 6, the main data collection device 4 transmits a reception completion signal to the sub data collection device 5 via the relay device 6. . Then, the sub data collection device 5 controls its power supply to the off state on condition that the reception completion signal transmitted from the main data collection device 4 is received via the relay device 6.

  According to this configuration, when the transmission of the data collected by the sub data collection device 5 to the main data collection device 4 is completed, the power of the sub data collection device 5 is turned off. Unnecessary power consumption on the 5 side can be suppressed. Thereby, the energy saving as the whole system is realizable.

  In the present embodiment, when the external device receives the information transmitted from the main data collection device 4 via the network, the external device transmits a reception completion signal to the main data collection device 4 via the network. The data collection device 4 controls the relay device 6 to be turned off on condition that the reception completion signal transmitted from the external device is received via the network.

  According to such a configuration, since the power supply of the sub data collection device 5 is turned off, the power saving of the entire system can be realized by controlling the power supply of the relay device 6 to the off state.

  The preferred embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments, and various modifications can be made to the above embodiments without departing from the scope of the invention. The main data collection device 4 may perform wired communication in addition to communication. Further, the main data collecting device 4 according to the present invention in a system directly connected to the server 7 can be used. Furthermore, each embodiment described above can be applied not only individually but also in combination with each other.

  Moreover, in each embodiment mentioned above, although the data collection system 1 collects the information regarding a farmland and the crop in this farmland, this invention is not limited to this, Generally collects outdoor environmental information widely It can be applied as a data collection system.

1 is a block diagram showing the overall configuration of a data collection system 1 according to an embodiment of the present invention. The perspective view which shows typically the external appearance of the main data collection device 4 and the sub data collection device 5 Block diagram functionally showing the overall configuration of the main data collection device 4 (sub data collection device 5) 1 is a timing chart showing a procedure of data collection processing of the data collection system 1 according to the first embodiment. Timing chart showing a procedure of data collection processing of the data collection system 1 according to the second embodiment

Explanation of symbols

1 Data collection system 2 PC
DESCRIPTION OF SYMBOLS 3 Farmland side system 4 Main data collection apparatus 5 Sub data collection apparatus 6 Relay apparatus 6a Switch part 6b Power supply part 7 Server 40 Main body unit 40a Main body housing 40b Leg part 40c Prop 41 Data control part 42 Data collection part 43 Data operation part 44 Data Storage unit 45 Data display unit 46 Communication control unit 47 Communication unit 48 Sensor I / F unit 49 Power supply unit 50 Internal environment control unit 51 Internal environment measurement unit 60 Camera unit 61 Camera 62 Power supply unit 63 Internal environment control unit 64 Internal environment measurement unit 70 Temperature / humidity sensor 71 Temperature / humidity sensor 72 Temperature / humidity sensor 73 Soil temperature sensor 74 Soil moisture sensor 75 Soil EC sensor 76 Solar radiation sensor 77 CO ₂ sensor

Claims (1)

In the data collection system,
A main data collection device that is provided outdoors, collects environmental information of a predetermined area, and transmits the collected information via a network;
A plurality of sub-data collection devices that are provided outdoors and collect environmental information of a predetermined area corresponding to the main data collection device;
A relay device that relays communication between the main data collection device and the plurality of sub data collection devices, and supplies driving power to the plurality of sub data collection devices;
An external device for receiving information transmitted by the main data collection device via a network;
The main data collection device supplies power for driving to each of the plurality of sub data collection devices by controlling a power supply of the relay device to be in an ON state at every predetermined period, so that the plurality of sub data collection devices Set each of the power supplies to the ON state, and send the transmission request of the collected information to the plurality of sub data collection devices via the relay device,
The main data collection device manages the power state in the plurality of sub data collection devices via the relay device, and receives information collected by the plurality of sub data collection devices via the relay device, Send the received information together with the information collected by itself to the external device via the network,
When the external device receives information transmitted from the main data collection device via a network, it transmits a reception completion signal to the main data collection device via the network,
When the main data collection device receives a reception completion signal transmitted from the external device via a network, the main data collection device controls the relay device to be turned off to drive the plurality of sub data collection devices. A data collection system, wherein power supply is stopped and each power source of the plurality of sub data collection devices is set to an off state .

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