JP6260343B2 - Data transmission / reception system and server system - Google Patents

Description

  The present invention relates to an M2M (Machine to Machine) technical field in which devices are connected to each other via a network.

  Sensor devices connected to sensors that measure measurement data (temperature, humidity, position, etc.) in response to miniaturization and cost reduction of network communication parts and network speedup (equipment such as automobiles, vending machines, M2M, which is built into healthcare equipment and the like and collects and uses measurement data measured by the sensor of the sensor device, has attracted attention in various industries.

  When collecting measurement data from a sensor device, the relay device that collects the measurement data (Patent Document 1) and each sensor device built in the device are connected to the network. However, if the relay device and the sensor device are connected to the wired network, the workload Therefore, the network communication function of the sensor device is generally a wireless communication function, and the sensor device and the relay device are generally connected to the wireless network.

  There is no problem if the number of sensor devices connected to the relay device via the wireless network is small, but if the number of devices connected to the relay device via the wireless network becomes enormous, the traffic load increases and network communication between the sensor device and the relay device cannot be performed normally. Therefore, inventions for solving such problems have already been disclosed (for example, Patent Documents 2 and 3).

WO2013 / 161278 JP 2012-80413 A JP 2013-135437 A

  However, in the conventional technique related to M2M, it has not been considered that transmission data generated from measurement data of a sensor device can be received and used by a receiving device.

The present invention aims at providing a server system required by the system and the system can be utilized to receive the transmission data generated from the sensor device of the measuring data on the device for reception.

  A first invention for solving the above-described problem is a data transmission / reception system including at least a server system to which M2M data is uploaded and a receiving device for receiving transmission data distributed by the server system. In the first invention, the receiving device decrypts the transmission data received by the broadcast wave receiving unit using a broadcast wave receiving unit that receives transmission data broadcast on the broadcast wave and a decryption key. A device control unit is provided that outputs a control signal based on transmission data to a device to which the receiving device is connected when processing is performed and decoding is successful. When the M2M data is uploaded, the server system includes a data collection unit that stores the uploaded M2M data in a memory, and an analysis scenario corresponding to the M2M data stored in the memory by the data collection unit. When the transmission data generating unit generates transmission data corresponding to the M2M data, and the transmission data generating unit generates the transmission data, an encryption key corresponding to the business operator permitted to use the transmission data is used. A transmission data encryption unit that encrypts transmission data, and a transmission data distribution unit that transmits the transmission data encrypted by the transmission data encryption unit to the broadcast wave base station and broadcasts the transmission data on the broadcast wave.

  In the data transmission / reception system according to the first aspect of the invention, the transmission data broadcast by the server system on the broadcast wave can be decoded by the reception device installed by the business operator permitted to use the transmission data. , Utilizing the measurement data of the sensor device installed by the operator uploading the M2M data on the receiving device side installed by the operator permitted to use transmission data, and receiving the device It becomes possible to control the device connected to the device based on the transmission data. In addition, since the server system broadcasts transmission data on a broadcast wave, it is not necessary to consider the traffic load on the network.

  Further, according to a second aspect of the present invention, in the data transmission / reception system according to the first aspect, the device control unit holds a value indicating an electronic monetary value in electronic payment, and determines as transmission data addressed to the own device. The value corresponding to the use price of the transmission data is subtracted from the value.

  Further, according to a third invention, in the data transmission / reception system described in the second invention, when the broadcast wave receiving unit receives the broadcast wave indicating the charge of the value, the device control unit receives a value corresponding to the charge amount. Is added to the value.

  According to a second aspect of the present invention, in the data transmission / reception system according to the first aspect of the present invention, electronic payment for a usage fee of transmission data can be performed on the receiving device side. The third invention is an invention in which in the data transmission / reception system according to the second invention, the receiving device side can charge the value used for electronic payment of the transmission data usage fee.

  Furthermore, when the M2M data including the measurement data measured by the plurality of sensor devices connected to the sensor is uploaded, the fourth invention is a data collection unit that stores the uploaded M2M data in a memory; and the data When the collection unit operates the analysis scenario corresponding to the M2M data stored in the memory and generates transmission data corresponding to the M2M data, and the transmission data generation unit generates the transmission data, A transmission data encryption unit that encrypts the transmission data using an encryption key corresponding to an operator that distributes transmission data, and transmits the transmission data encrypted by the transmission data encryption unit to a broadcast wave base station, A server system comprising a transmission data distribution unit that broadcasts transmission data on a broadcast wave. .

4th invention is the invention which concerns on the server system of this invention .

  As described above, according to the present invention, transmission data based on measurement data of a sensor device is received by a receiving device, and a device to which the receiving device is connected can be controlled based on the transmission data.

The figure explaining the structure of a data transmission / reception system. The figure explaining a sensor device and the device for reception. The figure explaining a relay apparatus. The figure explaining a server system. The figure explaining operation | movement of a data transmission / reception system.

  From here, preferred embodiments of the present invention will be described. The following description is not intended to limit the scope of the present invention, but is provided to aid understanding.

  FIG. 1 is a diagram illustrating a configuration of a data transmission / reception system 1 according to the present embodiment. The data transmission / reception system 1 illustrated in FIG. 1 is a system that enables transactions related to data measured by the sensor device 2 to be performed between business operators.

  The data transmission / reception system 1 illustrated in FIG. 1 includes, in addition to a sensor device 2 to which a sensor 20 for measuring a predetermined physical quantity is connected, a relay device 3 connected to each sensor device 2 managed by a business operator, and a sensor device 2 Includes a server system 5 that manages transactions between providers related to the data measured by the receiver, and a receiving device 4 that receives transmission data that the server system 5 broadcasts using the broadcast wave base station 6.

  First, the sensor device 2 and the receiving device 4 built in the apparatus will be described. 2A and 2B are diagrams illustrating the sensor device 2 and the receiving device 4, FIG. 2A is a diagram illustrating the sensor device 2, and FIG. 2B is a diagram illustrating the receiving device 4. FIG.

  As illustrated in FIG. 2A, the sensor device 2 according to the present embodiment includes a measurement data transmission unit 21, a network communication unit 22, and a storage unit 23 as functions, and the environment (for example, temperature and humidity) and the like. It is connected to at least one sensor 20 that measures a predetermined physical quantity such as an object state (for example, position or speed).

  The sensor 20 connected to the sensor device 2 is a device that measures a physical quantity corresponding to the sensor 20 and outputs measurement data indicating a measurement result. The number of sensors 20 connected to the sensor device 2 is not limited to one, and a plurality of sensors 20 can be connected to one sensor device 2. In addition, the sensor 20 may be configured to be built in the sensor device 2, but it is also possible to configure the sensor 20 so that a device provided in advance with the device in which the sensor device 2 is built is used.

  Specifically, the physical quantity measured by the sensor 20 is a physical quantity related to a device incorporating the sensor device 2. Since the device incorporating the sensor device 2 is related to the business field of the business operator, the physical quantity measured by the sensor 20 is also data related to the business field of the business operator who manages the sensor device 2. In FIG. 1, there are three business operators A to C that manage the sensor device 2, the business operator A is an automobile manufacturer, the business operator B is an electric power company, and the business operator C is a drinking water manufacturer. In the case of an automobile manufacturer (in this case, business operator A), the device in which the sensor device 2 is incorporated can be an automobile, and the physical quantity measured by the sensor 20 is the state of the automobile (for example, the position of the automobile, the running speed, and the wiper). Speed). Further, in the case of an electric power company (here, business operator B), the physical quantity measured by the sensor 20 can be used as power consumption. Moreover, when it is set as the drinking water maker (here operator C), the physical quantity which the sensor 20 measures can be made into the inventory of the drinking water in a vending machine.

  The network communication unit 22 of the sensor device 2 is a function necessary for the sensor device 2 to perform network communication with the relay device 3. The specific form of the network communication unit 22 of the sensor device 2 depends on the communication form between the sensor device 2 and the relay device 3. For example, if the communication form between the sensor device 2 and the relay device 3 is wireless communication, the network communication unit 22 of the sensor device 2 is a wireless communication circuit.

  Specifically, the storage unit 23 of the sensor device 2 includes a memory such as a nonvolatile memory or a volatile memory. The storage unit 23 of the sensor device 2 stores a device ID serving as data for identifying each sensor device 2, a computer program necessary for the operation of the sensor device 2, and measurement data acquired from the sensor 20. .

  The measurement data transmission unit 21 of the sensor device 2 is a function for transmitting the measurement data acquired from the sensor 20 to the relay device 3 and is realized by using a microprocessor of the sensor device 2 and a computer program for operating the microprocessor. It is a function. The measurement data transmission unit 21 of the sensor device 2 acquires measurement data from the sensor 20 connected to the sensor device 2 when a request is received from the relay device 3 or periodically, and the network communication unit 24 Utilizing this, the measurement data acquired from the sensor 20 is transmitted to the relay device 3.

  As illustrated in FIG. 2B, the receiving device 4 according to the present embodiment includes a device control unit 40, a broadcast wave receiving unit 41, a storage unit 42, and an interface unit 43 as functions. In FIG. 1, the business operator that manages the receiving device 4 is one business operator D, and here, the business operator D is a convenience store.

  The broadcast wave receiving unit 41 of the receiving device 4 is a function necessary for receiving transmission data broadcast on the broadcast wave. The broadcast wave receiving unit 41 of the receiving device 4 is, for example, a broadcast wave tuner, which decodes the electric signal output from the antenna and the terminal to which the electric signal output from the antenna that receives the broadcast wave is input. It is composed of a circuit for restoring transmission data broadcast on a wave to electronic data.

  Specifically, the storage unit 42 of the receiving device 4 includes a memory such as a nonvolatile memory or a volatile memory. The storage unit 42 of the reception device 4 includes a broadcast wave reception unit of the reception device 4 in addition to a device ID serving as data for identifying each reception device 4 and a computer program necessary for the reception device 4 to operate. The transmission data restored by 41 is stored.

  The device control unit 40 of the receiving device 4 is a function for authenticating transmission data distributed by the server system 5 using broadcast waves, and uses a microprocessor for the receiving device 4 and a computer program for operating the microprocessor. It is a function realized as a result. The device control unit 40 of the receiving device 4 stores the decryption key of the business operator who installs the receiving device 4. Then, when the broadcast wave receiving unit 41 receives the transmission data, the device control unit 40 of the receiving device 4 can use the decryption key to decrypt the transmission data received by the broadcast wave receiving unit 41 and normally decrypt it. In this case, it is determined that the transmission data received by the broadcast wave reception unit 41 is transmission data addressed to its own device, and the transmission data is transmitted to the device to which the reception device 4 is connected using the interface unit 43. A control signal based on is output. Further, when the actuator unit 40 of the receiving device 4 cannot normally decode the transmission data received by the broadcast wave receiving unit 41, the transmission data received by the broadcast wave receiving unit 41 is not transmission data addressed to the own device. This transmission data is not used.

  Note that the receiving device 4 is a device that uses transmission data based on the measurement data measured by the sensor device 2, so that the usage fee of the transmission data can be electronically settled in the receiving device 4. If the value indicating the electronic monetary value is held and determined as transmission data addressed to the own device, the device control unit 40 of the receiving device 4 has a function of subtracting a value corresponding to the use price of the transmission data from the value. It is desirable to

  Further, when the broadcast wave receiving unit receives a broadcast wave indicating the charge of the value so that the value used for the electronic payment of the usage fee of the transmission data based on the measurement data measured by the sensor device 2 can be charged in the receiving device 4. It is desirable that the device control unit 40 of the receiving device 4 has a function of adding a value corresponding to the charge amount to the value.

  Next, the provider's relay device 3 will be described. FIG. 3 is a diagram illustrating the relay device 3. The operator's relay device 3 is a device for constructing the operator's private network, and can be realized by using, for example, a gateway. When the measurement data is transmitted from the sensor device 2 connected to the relay device 3 over the network, the relay device 3 temporarily stores the measurement data received from the sensor device 2 and collects it from the sensor device 2 within a certain period. An upload unit 30 is provided for uploading the M2M data including the measured data and the business code for identifying the business to the server system 5. The connection between the operator's relay device 3 and the server system 5 is preferably a wired network connection capable of transmitting a large amount of data at high speed.

  Next, the server system 5 will be described. FIG. 4 is a diagram for explaining the server system 5.

  The server system 5 is a device that is installed so that transactions relating to data measured by the sensor device 2 can be performed between business operators. As shown in FIG. 4, the server system 5 includes an encryption key DB 55 as a DB (Data Base), and further functions as a data collection unit 50, a transmission data generation unit 51, a transmission data encryption unit 52, A transmission data distribution unit 53 and an operator management unit 54 are provided. Since the server system 5 handles big data that is an enormous collection of measurement data, it is desirable to implement the server system 5 using cloud computing. The server system 5 is configured using cloud computing. When realized, the DB and functions of the server system 5 are realized by one or a plurality of servers.

  The encryption key DB 55 of the server system 5 is a DB that stores an encryption key used for encrypting transmission data. The encryption key DB 55 of the server system 5 stores the encryption key of this business operator in association with the identification code of this business operator for each business operator who wishes to distribute the transmission data. Is generated in the server system 5 and stored in the encryption key DB 55.

  The data collection unit 50 of the server system 5 is a function for storing the collected data uploaded by the operator's relay device 3 in a memory. When the M2M data is transferred from the operator's relay device 3, the data collection unit 50 of the server system 5 adds the date and time when the M2M data is received and stores the M2M data in the memory.

  The transmission data generation unit 51 of the server system 5 has a function of generating transmission data to be broadcast on a broadcast wave. In the transmission data generation unit 51 of the server system 5, an analysis scenario for generating transmission data from M2M data uploaded by a business operator is registered for each business operator who uploads M2M data.

  The transmission data generation unit 51 of the server system 5 stores the M2M data in the memory after the data collection unit 50 of the server system 5 stores the M2M data at a timing set by an operator who uploads the M2M data or an operator who uses the transmission data. The data collection unit 50 activates an analysis scenario corresponding to the operator code included in the M2M data stored in the memory, and generates transmission data based on the M2M data. The analysis scenario for generating the transmission data depends on the measurement data included in the M2M data. The transmission data includes the measurement data included in the M2M data received from the relay device 3, and the measurement data is analyzed. The digital content obtained in this way, the control command of the device to which the receiving device 4 is connected, and the like can be included.

  The transmission data encryption unit 52 of the server system 5 is a function for encrypting transmission data to be distributed to a business operator. The transmission data encryption unit 52 stores the carrier code of the carrier permitted to use the transmission data generated from the M2M data uploaded by the carrier in association with the carrier code of the carrier uploading the M2M data. doing. The transmission data encryption unit 52 receives the business code included in the M2M data used to generate the transmission data and the transmission data generated from the M2M data from the transmission data generation unit 51. The provider code of the provider that distributes the transmission data is identified from the received provider code, the encryption key associated with this provider code is acquired from the encryption key DB 55, and the encryption key acquired from the encryption key DB 55 is then obtained. Use to encrypt the transmitted data.

  The transmission data distribution unit 53 of the server system 5 is a function for distributing transmission data. When the transmission data encrypted with the encryption key corresponding to the provider permitted to use the transmission data is delivered from the transmission data encryption unit 52, the transmission data distribution unit 53 of the server system 5 transmits the transmission data to the broadcast wave base. The data is transmitted to the station 6, and the transmission data is broadcast on the broadcast wave.

  The business operator management unit 54 of the server system 5 is a function for managing a business operator who performs a transaction related to data measured by the sensor device 2. When adding a new business operator who uploads M2M data, the business operator management unit 54 of the server system 5 generates transmission data from the M2M data uploaded by this business operator in association with the business operator code of this business operator. An analysis scenario is newly registered in the transmission data generation unit 51. In addition, when a new business operator that distributes transmission data is newly added, the business operator management unit 54 associates the M2M data used to generate transmission data to be distributed to this business operator with the business operator code of the business operator to upload. Then, the company code of the company that distributes the transmission data is registered in the transmission data encryption unit 52. Further, the business operator management unit 54 generates an encryption key used when distributing transmission data to this business operator and a decryption key that is paired with this encryption key, and associates the encryption key with the identification code of this business operator. It is registered in the encryption key DB 55 and the decryption key is transmitted to this business operator. The decryption key of this business operator is written in the reception device 4 using a device or the like that incorporates the reception device 4 managed by this business operator.

  From here, operation | movement of the data transmission / reception system 1 is demonstrated. FIG. 5 is a diagram for explaining the operation of the data transmission / reception system 1.

  When the measurement data transmission unit 21 of the sensor device 2 acquires the measurement data from the sensor 20 connected to the sensor device 2 (S1), the measurement data transmission unit 21 transmits the measurement data to the relay device 3 using the network communication unit 22 ( S2).

  When receiving the measurement data from the sensor device 2 connected to the relay device 3 over the network, the upload unit 30 of the relay device 3 temporarily stores the measurement data received from the sensor device 2 (S3), and within a certain period. The sensor data including all measurement data and the company code received from the sensor device 2 is uploaded to the server system 5 (S4).

  When the M2M data is uploaded from the relay device 3, the data collection unit 50 of the server system 5 adds the date and time when the M2M data is received and stores the M2M data in the memory (S5).

  When the M2M data is stored in the memory, the transmission data generation unit 51 of the server system 5 activates an analysis scenario corresponding to the operator code included in the M2M data, and generates transmission data based on the M2M data ( S6).

  When the transmission data generating unit 51 generates the transmission data, the transmission data encryption unit 52 of the server system 5 identifies the business operator that distributes the transmission data, and the encryption key of the business operator that distributes the transmission data from the encryption key DB 55. After the acquisition, the transmission data is encrypted using the encryption key acquired from the encryption key DB 55 (S7).

  The transmission data distribution unit 53 of the server system 5 transmits the transmission data encrypted by the transmission data encryption unit 52 to the broadcast wave base station 6 (S8), and the broadcast base station 9 puts this transmission data on the broadcast wave. Broadcast (S9).

  When the broadcast wave receiving unit 41 of the receiving device 4 receives the transmission data broadcast on the broadcast wave, the actuator unit of the receiving device 4 uses the decryption key stored in the receiving device 4, The transmission data received by the broadcast wave receiving unit 41 is decoded (S10).

  If the device control unit 40 of the receiving device 4 succeeds in decoding the transmission data received by the broadcast wave receiving unit 41, the device control unit 40 determines that the transmission data received by the broadcast wave receiving unit 41 is transmission data for its own device, and the interface Using the unit 43, a process of outputting a control signal based on the transmission data to the device to which the receiving device 4 is connected is performed (S11), and this procedure is terminated.

  When the device control unit 40 of the receiving device 4 fails to decode the transmission data received by the broadcast wave receiving unit 25, the device control unit 40 determines that the transmission data received by the broadcast wave receiving unit 25 is not intended for the device itself. The transmission data is ignored (S12), and this procedure is terminated.

  Finally, the implementation will be described by taking as an example the case where the operator D (convenience store) illustrated in FIG. 1 uses the M2M data uploaded to the server system 5 by the operator A (automobile manufacturer) illustrated in FIG. The operation of the data transmitting / receiving system 1 according to the embodiment will be described.

  In the case of the sensor device 2 managed by the operator A, the measurement data output by the sensor device 2 includes the position of the vehicle, the running speed, and the speed of the wiper that are in the state of the vehicle. Collects measurement data transmitted from each sensor device 2 incorporated in a plurality of automobiles, and uploads M2M data including a plurality of the measurement data to the server system 5.

  When the relay device 3 of the carrier A uploads the M2M data, the server system 5 stores the M2M data uploaded by the relay device 3 of the carrier A in the memory, and then uploads the M2M data uploaded by the relay device 3 of the carrier A The transmission scenario based on the M2M data uploaded by the relay device 3 of the operator A is generated.

  For example, considering that a windshield wiper is used when it rains, the presence or absence of rain can be determined from the wiper speed included in the measurement data of the operator A. Further, it is possible to specify the area where the automobile is running or stopped from the position included in the measurement data of the operator A. Therefore, transmission data indicating a raining area can be generated from the M2M data uploaded by the operator A.

  Here, since the operator D uses the M2M data uploaded by the operator A to the server system 5, the server system encrypts the transmission data using the encryption key of the operator D.

  The server system 5 transmits the encrypted transmission data to the broadcast wave base station 6, and the broadcast wave base station 6 broadcasts the transmission data on the broadcast wave.

  When the receiving device 4 managed by the operator D receives the transmission data, the receiving device 4 decrypts the transmission data by using the decryption key of the operator D stored in the receiving device 4. To do. Here, since the transmission data is encrypted with the encryption key of the business operator D, the reception device 4 managed by the business operator D succeeds in decrypting the transmission data, and the decrypted transmission data is stored in the convenience store. It will be used in. The transmission data broadcast on the broadcast wave is also received by all receiving devices 4, but the receiving device 4 that does not store the decryption key of the operator D fails to decrypt the transmission data. For this reason, the transmission data cannot be used on the business side other than the business side D.

DESCRIPTION OF SYMBOLS 1 Data transmission / reception system 2 Sensor device 20 Sensor 21 Measurement data transmission part 22 Network communication part 23 Storage part 3 Relay device 30 Upload part 4 Receiving device 40 Equipment control part 41 Broadcast wave reception part 42 Storage part 43 Interface part 5 Server system 50 Data collection unit 51 Transmission data generation unit 52 Transmission data encryption unit 53 Transmission data distribution unit 54 Operator management unit 55 Encryption key DB
6 Broadcasting wave base station

Claims (4)

A system comprising at least a server system to which M2M data is uploaded, and a receiving device for receiving transmission data distributed by the server system,
The receiving device performs a process of decrypting transmission data received by the broadcast wave receiving unit using a broadcast wave receiving unit for receiving transmission data broadcast on a broadcast wave and a decryption key, and A device control unit that outputs a control signal based on transmission data to a device to which the receiving device is connected;
When the M2M data is uploaded, the server system operates a data collection unit that stores the uploaded M2M data in a memory, and an analysis scenario corresponding to the M2M data stored in the memory by the data collection unit. , A transmission data generation unit that generates transmission data corresponding to the M2M data, and when the transmission data generation unit generates transmission data, the transmission data is transmitted using an encryption key corresponding to an operator permitted to use the transmission data. A transmission data encryption unit that encrypts the transmission data, and a transmission data distribution unit that transmits the transmission data encrypted by the transmission data encryption unit to the broadcast wave base station and broadcasts the transmission data on the broadcast wave,
A data transmission / reception system characterized by that.   The device control unit of the receiving device holds a value indicating an electronic monetary value in electronic payment, and when it is determined as transmission data destined for the own device, a value corresponding to a usage fee of the transmission data is determined from the value. The data transmission / reception system according to claim 1, wherein subtraction is performed.   The device control unit of the receiving device adds a value corresponding to a charge amount to the value when the broadcast wave receiving unit receives the broadcast wave indicating the charge of the value. The data transmission / reception system described in 1. When the M2M data is uploaded, the data collection unit that stores the uploaded M2M data in the memory, and the analysis scenario corresponding to the M2M data stored in the memory by the data collection unit are activated to correspond to the M2M data A transmission data generation unit that generates transmission data to be transmitted, and transmission data that, when the transmission data generation unit generates the transmission data, encrypts the transmission data using an encryption key corresponding to an operator that distributes the transmission data A server system comprising: an encryption unit; and a transmission data distribution unit that transmits the transmission data encrypted by the transmission data encryption unit to a broadcast wave base station and broadcasts the transmission data on a broadcast wave. .

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