JP7010112B2 - Data processing system and data processing method - Google Patents

Description

The present invention relates to a data processing system and a data processing method, and can be applied to, for example, a sensor data collection process for collecting sensor data from a sensor device and providing it to an application.

A wireless communication device is attached to various objects (for example, a machine such as a sensor), and the data of the object (for example, sensor data) is collected and analyzed to dynamically judge the situation (for example, the situation judgment based on the sensor data). Can be realized. Hereinafter, a network having one or a plurality of sensor nodes is referred to as a “sensor network”, and a system for collecting sensor data from each sensor node on the sensor network is referred to as a “sensor data processing system”.

As a conventional sensor data processing system, for example, there is a system described in Patent Document 1.

The system described in Patent Document 1 describes a configuration in which a data collection server that collects sensor data connects to a sensor network via a gateway and collects sensor data from each sensor node on the sensor network. In Patent Document 1, when the gateway periodically sends out a polling packet for acquiring sensor data on the sensor network, the polling packet is propagated (relayed and transferred) in the sensor network. Then, each sensor node that receives the polling packet sequentially returns the sensor data to the gateway.

Japanese Unexamined Patent Publication No. 2015-89080

However, in a conventional sensor network, when a data collection server collects sensor data having a large data size or a large number of packets, if collection is performed from all sensor nodes, congestion may occur in the network. In particular, in the technique described in Patent Document 1, since each sensor node on the sensor network returns sensor data all at once according to the polling packet propagated from the gateway, congestion is likely to occur at the gateway. Further, when congestion occurs in the sensor network, each sensor node needs to keep the activated state until the congestion is settled, which causes a problem that the startup time tends to be long and the power consumption increases.

Further, in the conventional sensor network, when the wireless communication device constituting the sensor node is maintained, the wireless communication device is stopped and replaced with another wireless communication device (for example, when the battery of the wireless communication device is exhausted). May be. At this time, if sensor data important for analysis is generated in the sensor node, the sensor data important for analysis cannot be collected by the sensor data collecting device. That is, depending on the timing of maintenance of the sensor node, there is a possibility that the processing of the sensor data collected by the sensor data collecting device (for example, the analysis processing by the application) may be hindered.

In view of the above problems, a data processing system and a data processing method capable of reducing congestion on the data transmission path when collecting data from a data source (for example, a sensor) are desired. There is.

The first aspect of the present invention is the wireless communication according to (1) a data usage request signal from an application that performs predetermined processing using data collected from a data source connected to a wireless communication device in a data processing system. A data transmission control processing unit that controls the transmission timing of data of the data source via the device, (2) a data collection processing unit that collects data transmitted from the wireless communication device, and (3) the data collection. It includes a data providing processing unit that provides the data collected by the processing unit to the application, and (4) the data transmission control processing unit responds to the content of the data of the data source collected by the data collection processing unit. , The control content of the data source is changed , and (5) the data providing processing unit provides the data acquired from the plurality of data sources to one or the plurality of applications as the data of one virtual data source. (6) The data transmission control processing unit selects the data source to be transmitted from among a plurality of the data sources corresponding to the virtual data source. It is characterized in that processing is performed and data is transmitted only to the data source selected by the selection process among the plurality of data sources corresponding to the virtual data source .

The second aspect of the present invention is the data processing method, which includes (1) a data transmission control processing unit, a data collection processing unit, and a data provision processing unit, and (2) the data transmission control processing unit is connected to a wireless communication device. According to a data usage request signal from an application that performs predetermined processing using the data collected from the data source, the transmission timing of the data of the data source is controlled via the wireless communication device, and (3) the above. The data collection processing unit collects the data transmitted from the wireless communication device, (4) the data provision processing unit provides the data collected by the data collection processing unit to the application, and (5) the data. The transmission control processing unit changes the control content of the data source according to the content of the data of the data source collected by the data collection processing unit (6), and the data providing processing unit has a plurality of the data. It has a virtual data source processing unit that provides the data acquired from the source as data of one virtual data source to one or a plurality of the applications, and (7) the data transmission control processing unit has the virtual data generation. A selection process is performed to select the data source to be transmitted data from the plurality of data sources corresponding to the sources, and the data source is selected from the plurality of data sources corresponding to the virtual data sources by the selection process. It is characterized in that control is performed so that data is transmitted only to the said data source .

According to the present invention, when collecting data from a data source, it is possible to reduce congestion on the data transmission path.

It is a block diagram which showed the connection structure of each apparatus which concerns on 1st Embodiment. It is a block diagram which showed the functional configuration of the data collection server which concerns on 1st Embodiment. It is a block diagram which showed the functional configuration of the sensor management control server which concerns on 1st Embodiment. It is a flowchart which showed the operation of the sensor data processing system which concerns on 1st Embodiment. It is a graph which showed the example of the sensor value collected by the sensor data processing system which concerns on 1st Embodiment. It is a block diagram which showed the connection structure of each apparatus which concerns on 2nd Embodiment. It is a block diagram which showed the functional configuration of the data collection server which concerns on 2nd Embodiment. It is a block diagram which showed the functional configuration of the sensor management control server which concerns on 2nd Embodiment. It is explanatory drawing which showed the configuration example of the virtual sensor information database which concerns on 2nd Embodiment. It is a flowchart which showed the operation of the sensor data processing system which concerns on 2nd Embodiment. It is a graph (No. 1) which showed the example of the sensor value collected by the sensor data processing system which concerns on 2nd Embodiment. It is a graph (No. 2) which showed the example of the sensor value collected by the sensor data processing system which concerns on 2nd Embodiment.

(A) First Embodiment Hereinafter, the first embodiment of the data processing system and the data processing method according to the present invention will be described in detail with reference to the drawings. Hereinafter, an example of applying the data processing system of the present invention to the sensor data processing system will be described.

(A-1) Configuration of First Embodiment FIG. 1 is a block diagram showing a connection configuration of each device according to the first embodiment.

FIG. 1 illustrates a sensor network N1 in which N sensor nodes 10 (10-1 to 10-N) are arranged, and a data collection server 50 that collects sensor data from each sensor node 10 on the sensor network N1. ing.

The data collection server 50 is connected to the backbone network N2, and the backbone network N2 is connected to the sensor nodes 10 (10-1 to 10-N) via the gateway 40. Further, in FIG. 1, a sensor management control server 60 and an application server 70 are arranged in the backbone network N2. The backbone network N2 can be configured by using, for example, an IP network using Ethernet (registered trademark) (for example, LAN or the Internet).

The gateway 40 wirelessly connects to the sensor network N1 (sensor node 10 on the sensor network N1) by wireless communication. The wireless communication method in the sensor network N1 is not limited. Examples of the wireless communication method in the sensor network N1 include a low-speed wireless communication method represented by a specific low power radio, a wireless LAN standard represented by IEEE802.11a / b / g / n, and IEEE802.15. 4. Various wireless communication methods such as Bluetooth (registered trademark) and UWB (Ultra Wideband) can be applied. The connection configuration in the sensor network N1 is not limited, but for example, a tree-structured wireless multi-hop network starting from the gateway 40 or a star-shaped connection configuration (topology) centered on the gateway 40 may be used. good.

The sensor nodes 10 (10-1 to 10-N) each perform sensing (detection) for the sensing object, and output sensor data (data; sensor value) which is the sensing result (detection result) of the sensor 20 (20). It has -1 to 20-N) and a wireless communication device 30 (30-1 to 30-N) that performs wireless communication with other nodes on the sensor network N1. The wireless communication device 30 (30-1 to 30-N) performs a process of transmitting the sensor data output from the sensor 20 (20-1 to 20-N) to the data collection server 50 via the gateway 40. Further, when the wireless communication device 30 (30-1 to 30-N) receives various control signals (control signals for the sensor 20) received from the sensor management control server 60 via the gateway 40, the control signal Is supplied to the sensor 20.

An identifier is assigned to each sensor 20. Here, the IDs of the sensors 20-1 to 20-N are represented as I1 to IN, respectively. Further, an ID (for example, a MAC address, a short address, etc.) on the sensor network N1 is set in each wireless communication device 30. Here, the IDs (addresses) of the wireless communication devices 30-1 to 30-N are represented as A1 to AN, respectively.

The gateway 40 is a gateway that relays between the sensor network N1 and the backbone network N2. The gateway 40 also performs a process of converting the data format of the sensor data when transferring the packet in which the sensor data is inserted from the sensor network N1 (wireless network) to the backbone network N2. Then, the gateway 40 transmits a packet into which the sensor data whose data format has been converted is inserted to the data collection server 50. Further, the gateway 40 transfers the control signal received from the sensor management control server 60 to the sensor node 10 (wireless communication device 30) corresponding to the destination of the control signal.

In the first embodiment, the sensor data processing system 100 is configured by the configuration including the data collection server 50 and the sensor management control server 60. The number of hardware (computers) constituting the sensor data processing system 100 is not limited. For example, the sensor data processing system 100 may be configured with one piece of hardware (computer). In the sensor data processing system 100 (data collection server 50 or sensor management control server 60), the correspondence relationship (information indicating the correspondence relationship) between the ID of each sensor 20 and the ID (address) of each wireless communication device 30 is grasped. Explain as if it were done.

Next, the configuration of the data collection server 50 will be described.

FIG. 2 is a block diagram showing a functional configuration of the data collection server 50.

The data collection server 50 is a device that collects (receives) and holds (stores) sensor data from each sensor 20, and is a communication unit 51, a data collection processing unit 52, a data provision processing unit 53, and a sensor data recording unit 54. have.

The data collection server 50 can be constructed, for example, by installing a program on a computer such as a PC or a workstation.

The communication unit 51 is a network interface for connecting to the backbone network N2.

The sensor data recording unit 54 is a recording means for recording (accumulating) the collected sensor data.

The data collection processing unit 52 receives sensor data from each sensor 20, classifies the received sensor data into each sensor 20 (each ID of the sensor 20), and records the received sensor data in the sensor data recording unit 54.

The data provision processing unit 53 performs a process of reading the sensor data recorded in the sensor data recording unit 54 and transmitting the sensor data to the application server 70 in response to the request of the application server 70.

Next, the configuration of the sensor management control server 60 will be described.

FIG. 3 is a block diagram showing a functional configuration of the sensor management control server 60.

The sensor management control server 60 is a device that controls each wireless communication device 30 (each sensor 20) on the sensor network N1 via the gateway 40, and is a communication unit 61, a sensor data transmission control processing unit 62, and a data acquisition request. It has an information recording unit 63 and a sensor setting information recording unit 64.

The sensor management control server 60 can be constructed, for example, by installing a program on a computer such as a PC or a workstation.

The communication unit 61 is a network interface for connecting to the backbone network N2.

The sensor data transmission control processing unit 62 transmits a control signal (hereinafter, also referred to as “sensor data transmission request signal”) for requesting transmission of sensor data (transmission of sensor data to the data collection server 50) to each sensor 20 (each wireless communication). By transmitting to the device 30), the sensor data transmission of each sensor 20 (for example, the transmission timing of the sensor data, etc.) is controlled. The sensor data transmission control processing unit 62 accesses the sensor 20 via the wireless communication device 30 of each sensor node 10. The sensor management control server 60 determines the control content for each sensor 20 (sensor data transmission transmitted to each sensor 20) in response to a request from the application server 70 (hereinafter referred to as “sensor data use request signal”), for example. Determine the content of the request signal and the transmission timing). At this time, the sensor management control server 60 controls each sensor 20 to transmit the sensor data under the transmission conditions (for example, conditions such as the sensor data transmission cycle) according to the request from the application server 70.

Further, the sensor data transmission control processing unit 62 takes in the data collected by the data collection server 50, grasps the content of the sensor data transmitted from each sensor 20, and considers the content of the grasped sensor data, respectively. A process of determining the control content of the sensor 20 (for example, a process of calculating and determining a sensor data transmission cycle (number of times sensor data is transmitted)) is performed. Then, the sensor data transmission control processing unit 62 transmits a sensor data transmission request signal in which the sensor data transmission cycle determined for each sensor 20 is set, and at the same time, the content of the latest sensor data transmission request signal transmitted to each sensor 20. (For example, conditions such as the sensor data transmission cycle) are recorded in the sensor setting information recording unit 64. In this case, since the sensor data is transferred between the sensor management control server 60 and the data collection server 50, the data collection server 50 and the sensor management control server 60 are configured in the same hardware. It is preferable to do so.

Further, the sensor data transmission control processing unit 62 records and holds the sensor data acquisition request information received from the application server 70 in the data acquisition request information recording unit 63.

The application server 70 is a computer in which an application that uses sensor information is installed.

Next, the configuration of the application server 70 will be described.

As shown in FIG. 1, the application server 70 is a computer in which an application 71 that processes sensor data collected by the data collection server 50 is installed. The application server 70 can be constructed, for example, by installing a program such as the application 71 on a computer such as a PC or a workstation.

The application 71 acquires the sensor data collected by the data collection server 50, and processes the acquired sensor data (for example, analysis processing or the like). Further, the application 71 transmits a sensor data use request signal for requesting the use of the sensor data (collection of the sensor data from the sensor 20) to the sensor management control server 60. The sensor data use request signal includes at least information on the value to be focused on when the application 71 processes the sensor data (sensor value) of the sensor 20 (hereinafter referred to as “sensor value information of interest”). And.

Next, the outline of the method of determining the sensor data transmission cycle by the sensor data transmission control processing unit 62 will be described.

The method by which the sensor data transmission control processing unit 62 determines the sensor data transmission cycle for each sensor 20 (each wireless communication device 30) is not limited. In the example of this embodiment, the sensor data transmission control processing unit 62 refers to the latest sensor value of each sensor 20 (sensor value included in the sensor data acquired from the data collection server 50), and is the latest sensor value of each sensor 20. It is determined whether or not the sensor value corresponds to the sensor value information of interest. Then, the sensor data transmission control processing unit 62 sets a small amount of sensor data (a long sensor data transmission cycle is set) for the sensor 20 in which the latest sensor value does not correspond to the attention sensor value information. For the sensor 20 in which the latest sensor value corresponds to the attention sensor value information, a large amount of sensor data is set (a short sensor data transmission cycle is set).

In this embodiment, as a method for controlling an increase / decrease in the amount of sensor data for each sensor 20 (sensor node 10), control is performed to change the sensor data transmission cycle from the sensor 20 (sensor node 10). That is, the sensor data transmission control processing unit 62 sets a long sensor data transmission cycle for the sensor 20 whose latest sensor value does not correspond to the attention sensor value information, and the latest sensor value corresponds to the attention sensor value information. For the sensor 20, the sensor data transmission cycle is set short.

(A-2) Operation of the First Embodiment Next, the operation of the sensor data processing system 100 (data acquisition server 50, sensor management control server 60) of the first embodiment having the above configuration will be described. ..

In the following, using FIG. 4, the sensor data processing system 100 (data collection server 50, sensor management control server 60) of the first embodiment may be an arbitrary sensor 20-i (sensor node 10-i) (i). The operation when controlling the sensor data transmission cycle for any integer from 1 to N) will be described.

First, it is assumed that the sensor management control server 60 (sensor data transmission control processing unit 62) transmits a sensor data transmission request signal to the sensor node 10-i (sensor 20-i). At this time, it is assumed that the sensor data transmission request signal transmitted by the sensor management control server 60 to each wireless communication device 30 (each sensor 20) includes at least a sensor data transmission cycle. At this time, the sensor data transmission cycle set in the sensor data transmission request signal is assumed to be the initial cycle of sensing (arbitrary initial value) (S101). At this time, the sensor data transmission request signal is transmitted from the sensor management control server 60 to the sensor 20-i via the gateway 40.

When the sensor data transmission request signal (initial cycle is set as the sensor data transmission cycle) is supplied from the sensor management control server 60 (sensor data transmission control processing unit 62), the sensor 20-i uses the sensor data transmission request signal. Start sensing under the specified conditions. In this case, the sensor 20-i performs sensing at intervals of the sensor data transmission cycle (initial cycle) set in the sensor data transmission request signal, and outputs sensor data including the result of the sensing. Then, each time the sensor data is output from the sensor 20-i, the wireless communication device 30-i transmits the sensor data to the data collection server 50 via the gateway 40 (S102).

On the other hand, when the application server 70 (application 71) starts using the sensor data of the sensor 20-i (sensor node 10-i), the application server 70 transmits a sensor data use request signal to the sensor management control server 60 (S103). .. When the sensor data transmission control processing unit 62 receives the sensor data use request signal from the application 71, the sensor data transmission control processing unit 62 records the content in the data acquisition request information recording unit 63. The sensor management control server 60 holds the contents of the latest received sensor data usage request signal for each sensor 20 (ID of the sensor 20). The sensor data transmission control processing unit 62 controls each sensor 20 according to the content of the sensor data use request signal recorded in the data acquisition request information recording unit 63.

At this time, the sensor data use request signal acquired by the sensor management control server 60 (sensor data transmission control processing unit 62) includes the ID (Ii) of the sensor 20-i to be sensed and the sensor 20-i by the application 71. The sensor value information of interest indicating the value of interest when processing the sensor data (sensor value) of the above is included.

As long as the sensor value information of interest can be shown with respect to the sensor value of interest by the application 71, the specific description format is not limited. For example, the sensor value information of interest may be the sensor value (one sensor value) of interest by the application 71, the range of the sensor value, or the fluctuation amount of the sensor value per unit time. In the following, the sensor value set in this attention sensor information will be simply referred to as “attention sensor value”.

When the sensor data transmission control processing unit 62 acquires the sensor data use request signal specifying the sensor 20-i from the application 71, the sensor data transmission control processing unit 62 obtains the sensor value (sensor data) of the sensor 20-i recorded in the data collection server 50. The sensor data transmission cycle for the sensor 20-i is determined based on the acquired sensor value.

In this case, the sensor data transmission control processing unit 62 compares the attention sensor value information set in the sensor data use request signal for the sensor 20-i with the sensor value of the sensor 20-i acquired from the data collection server 50. .. For example, when the sensor value of the sensor 20-i acquired from the data collection server 50 does not correspond to the value specified in the sensor value information of interest (for example, the sensor data transmission control processing unit 62 is designated by the sensor value information of interest). If the value is different from the value specified, or if it is outside the range specified by the sensor value information of interest), set the sensor data transmission cycle for the sensor 20-i to a longer period (for example, a period equal to or longer than the initial cycle). Set). Further, for example, in the sensor data transmission control processing unit 62, when the sensor value of the sensor 20-i acquired from the data collection server 50 corresponds to the value specified in the attention sensor value information (for example, in the attention sensor value information). If it matches the specified value or is within the range specified by the sensor value information of interest), the sensor data transmission cycle for the sensor 20-i is set shorter (for example, a period shorter than the initial cycle). )do.

Next, the sensor data transmission control processing unit 62 refers to the sensor setting information recording unit 64, acquires the sensor data transmission cycle currently set in the sensor 20-i, and sets the latest determined sensor data transmission cycle. It is confirmed whether or not they are different (S105), and only when the latest determined sensor data cycle and the content registered in the sensor setting information recording unit 64 are different, the process of step S106 described later is performed.

If the sensor data transmission cycle currently set in the sensor 20-i (sensor data transmission cycle acquired from the sensor setting information recording unit 64) and the latest determined sensor data transmission cycle are different, the sensor data transmission control process is performed. The unit 62 transmits the sensor data transmission request signal for which the newly determined sensor data transmission cycle is set to the sensor node 10-i (sensor 20-i) (S106). At this time, the sensor data transmission control processing unit 62 updates the sensor data transmission cycle of the sensor 20-i registered in the sensor setting information recording unit 64 to the newly determined content. By this process, the sensor data transmission cycle in the sensor 20-i is changed.

Next, the sensor data transmission control processing unit 62 confirms whether or not the sensor 20-i (wireless communication device 30-i) is activated (S107), and if it is activated, the above-mentioned step S103 is performed. It returns and operates, and if it is not started, the processing of this flowchart is temporarily terminated.

Next, an example of the sensor data transmission cycle specifically set in the sensor 20-i when the sensor management control server 60 or the like operates according to the flowchart of FIG. 4 will be described.

Here, the sensor 20-i is a temperature sensor, and the sensor 20-i is set to once / minute (sensing every minute) as an initial cycle by the processing of steps S101 and S102 described above. It shall be. Therefore, it is assumed that the sensor 20-i transmits the sensor data in the initial initial cycle (once / minute).

After that, it is assumed that the application 71 of the application server 70 has started to use the sensor data of the sensor 20-i by the process of step S103 described above. Specifically, it is assumed that the application 71 transmits a sensor data use request signal designating the sensor 20-i to the sensor management control server 60 (sensor data transmission control processing unit 62). At this time, it is assumed that two items, "30 ° C. or higher" and "25 ° C. or lower", are set in the attention sensor value information of the sensor data usage request signal.

The format of each information set in the sensor data usage request signal is not limited. For example, at this time, the sensor data use request signal transmitted by the application 71 to the sensor management control server 60 (sensor data transmission control processing unit 62) includes "(sensor, i), (temperature, temperature> 30 ° C., temperature <. 25 ° C.) ”may be applied. The "(sensor, i)" part indicates that the ID of the target sensor 20 is "i", and the "(temperature, temperature> 30 ° C., temperature <25 ° C.)" part indicates the sensor value information of interest. It is assumed that "30 ° C. or higher" or "25 ° C. or lower" is within the range of attention.

Here, this attention sensor value information initially initializes the sensor data transmission cycle when the temperature detected by the sensor 20-i is within the range specified by the attention sensor value information (when the temperature is 30 ° C. or higher or 25 ° C. or lower). Indicates that the cycle is shorter than the cycle, and when the temperature detected by the sensor 20-i is outside the range specified by the sensor value information of interest (when the temperature is less than 30 ° C and higher than 25 ° C), the sensor data transmission cycle is set as the initial cycle. It shall indicate that it should be done. Specifically, here, the sensor data transmission control processing unit 62 sets the sensor data transmission cycle to 2 times / minute when the temperature detected by the sensor 20-i is within the range specified by the sensor value information of interest. If the temperature detected by the sensor 20-i is outside the range specified by the sensor value information of interest, the sensor data transmission cycle shall be set to the initial cycle (1 time / 1 minute).

After that, due to the loop processing of S104 to S106 (here, it is assumed that the sensor 20-i is running), the sensor data transmission control processing unit 62 of the sensor 20-i via the data collection server 50. The sensor value (sensor data) is confirmed, and a process of controlling the sensor data transmission cycle of the sensor 20-i is performed according to the attention sensor value information (temperature, temperature> 30 ° C., temperature <25 ° C.).

The temperature used by the sensor data transmission control processing unit 62 to control the sensor data transmission cycle may be the measured value of the sensor 20-i itself, but in the following, the predicted value predicted by the measured value of the sensor 20-i. An example of using the above will be described.

FIG. 5 is a graph showing the sensor values (temperatures) detected by the sensors 20-i for each elapsed time (for each time series) at time t. In FIG. 5 , the solid line is the measured value of the sensor 20-i, and the dotted line is the predicted value at the time of the next measurement (the predicted value one minute before each measured value).

In the sensor data transmission control processing unit 62, the calculation method of the predicted value is not particularly limited, but in the example of FIG. 5 , the temperature detected by the sensor 20-i is the latest as shown in the following equation (1). The predicted value obtained by calculating the temperature after 1 minute from the amount of change in 1 minute is plotted.
Predicted value = latest temperature + (latest temperature-1 minute ago) ... (1)

In FIG. 5 , since the predicted value is 29 ° C. at time t = 2 minutes, the sensor data transmission cycle determined by the sensor data transmission control processing unit 62 with respect to the sensor 20-i is initial at this point. It remains a cycle (1 time / minute).

Further, in FIG. 5 , the predicted value becomes 30 ° C. at time t = 3 minutes, and at this point, the sensor data transmission control processing unit 62 sets the initial cycle as the sensor data transmission cycle of the sensor 20-i. Determine a shorter cycle (2 times / minute). Therefore, the sensor data transmission control processing unit 62 sends the sensor data transmission request signal set as the sensor data transmission cycle (twice / minute) to the sensor 20-i via the gateway 40 at the time t = 3 minutes. Send. As a result, the sensor data transmission cycle of the sensor 20-i is changed to (2 times / minute) at the time t = 3 minutes.

Further, in FIG. 5 , the predicted value falls below 30 ° C. at time t = 8 minutes, and at this point, the sensor data transmission control processing unit 62 sets the sensor data transmission cycle of the sensor 20-i to the initial cycle. Return to (1 time / 1 minute).

After that, the sensor data transmission control processing unit 62 changes the sensor data transmission cycle of the sensor 20-i in the same manner as described above according to the predicted value shown in FIG . Specifically, as shown in FIG. 5 , the sensor data transmission control processing unit 62 changes the sensor data transmission cycle to (twice / minute) at time t = 12 minutes, and time t = 19 minutes. The sensor data transmission cycle is set to (1 time / minute) at the time point, and the sensor data transmission cycle is set to (2 times / minute) at the time t = 33 minutes.

In the example of FIG. 5 , since the sensor data transmission cycle is controlled using the predicted value, the sensor data transmission cycle is performed at the same temperature rise at time t = 3 minutes (when the predicted value reaches 29 ° C.). Is changed to (2 times / minute), but the sensor data transmission cycle remains (1 time / minute) because the temperature rise is gradual when the time t = 32 minutes.

(A-3) Effect of the first embodiment According to the first embodiment, the following effects can be obtained.

In the first embodiment, it is determined whether or not the sensor value (sensor data) acquired from the sensor 20 corresponds to the attention sensor value information indicating the sensor value that the application 71 is paying attention to, and the corresponding sensor value is used. If so, the sensor data transmission cycle (transmission count; transmission frequency) by the sensor 20 is adjusted (for example, the sensor data transmission cycle is adjusted shortly). As a result, in the first embodiment, since each sensor 20 does not transmit more sensor data than required by the application, the sensor data transmission path (for example, sensor network N1, backbone network N2, gateway 40). ) Has the effect of reducing the probability of becoming congested.

(B) Second Embodiment Hereinafter, the second embodiment of the data processing system and the data processing method according to the present invention will be described in detail with reference to the drawings. Hereinafter, an example of applying the data processing system of the present invention to the sensor data processing system will be described.

(B-1) Configuration of Second Embodiment FIG. 6 is a block diagram showing a connection configuration of each device related to the second embodiment.

In the second embodiment, an example in which a plurality of sensors 20 are installed on one sensing object 80 will be described. The sensing object 80 includes, for example, an object for temperature detection, a room, and the like.

Here, in the second embodiment, as shown in FIG. 6, two sensors 20-1 and 20-2 (sensor nodes 10-1, 10-2) are installed on one sensing object 80-1. It is assumed that it has been done. Further, in the second embodiment, it is assumed that an ID (identifier) is also assigned to the sensing object 80. Here, the ID of the sensing object 80-1 is represented as "OB1". It goes without saying that a plurality of sensing objects 80 may be installed.

The second embodiment differs from the second embodiment in that the data acquisition server 50 and the sensor management control server 60 are replaced with the data acquisition server 50A and the sensor management control server 60A.

In the second embodiment, the sensor data processing system 100A is configured by the configuration including the data collection server 50A and the sensor management control server 60A. The number of hardware (computers) constituting the sensor data processing system 100A is not limited. For example, the sensor data processing system 100A may be configured with one hardware (computer).

FIG. 7 is a block diagram showing a functional configuration of the data acquisition server 50A.

As shown in FIG. 7, the data collection server 50A differs from the first embodiment in that the data provision processing unit 53 is replaced with the data provision processing unit 53A.

In the second embodiment, one or a plurality of virtual sensor processing units 90 are formed on the data providing processing unit 53A, and the sensor data indirectly collected by the virtual sensor processing unit 90 on the application server 70 (application 71). (Sensor data recorded in the sensor data recording unit 54) is provided. Each virtual sensor processing unit 90 integrates (merges) sensor data collected from a plurality of sensors 20 and provides the application 71 as sensor data apparently collected from one sensor. 6 and 7 show an example in which one virtual sensor processing unit 90-1 is formed in the data collection server 50A (data provision processing unit 53A), but a plurality of virtual sensor processing units 90 are formed. You may try to do it. In the second embodiment, it is assumed that an ID (identifier) is also assigned to each virtual sensor processing unit 90. Here, it is assumed that the ID of the virtual sensor processing unit 90-1 is "vI1".

FIG. 8 is a block diagram showing a functional configuration of the sensor management control server 60A.

As shown in FIG. 8, in the sensor management control server 60A, the sensor data transmission control processing unit 62 is replaced with the sensor data transmission control processing unit 62A, and the virtual sensor information database 65 is added. It's different.

In the second embodiment, the correspondence relationship between each virtual sensor processing unit 90 and each sensor 20 is managed by the virtual sensor information database 65. The data provision processing unit 53A forms the virtual sensor processing unit 90 according to the contents of each virtual sensor information database 65.

FIG. 8 is an explanatory diagram showing a configuration example of the virtual sensor information database 65.

As shown in FIG. 8, in the virtual sensor information database 65, the virtual sensor ID (ID of the virtual sensor processing unit 90) and the object ID (ID of the sensing object 80) to which the sensor ID (ID of the sensor 20) belongs are shown. ) Is set. In the virtual sensor information database 65 shown in FIG. 8, the sensor ID (I1) corresponds to the virtual sensor ID (vI1) and the object ID (OB1), and the sensor ID (I2) also corresponds to the virtual sensor ID (vI1) and the object. The content corresponds to the ID (OB1).

Information other than the items shown in FIG. 8 may be added to the virtual sensor information database 65.

As described above, when the data providing processing unit 53A of the data collection server 50A operates according to the virtual sensor information database 65 shown in FIG. 8, the virtual sensor processing unit 90-1 is formed.

The sensor data transmission control processing unit 62A performs a process of controlling the sensor 20 corresponding to each virtual sensor processing unit 90 according to the virtual sensor information database 65.

Here, the sensor data transmission control processing unit 62A selects one sensor from the corresponding sensors 20 for one virtual sensor processing unit 90 (hereinafter, the selected sensor 20 is referred to as a “attention sensor”). , The sensor data is transmitted only to the attention sensor, and the sensor 20 other than the attention sensor (hereinafter referred to as “non-attention sensor”) is controlled to stop the transmission of the sensor data. The sensor data transmission control processing unit 62A may change the attention sensor corresponding to each virtual sensor processing unit 90. The sensor data transmission control processing unit 62A switches the attention sensor to another sensor 20, for example, according to the state of the sensor data (sensor value) acquired from the attention sensor (for example, the sensor value or the fluctuation amount of the sensor value). You may do it. The sensor data transmission control processing unit 62A not only stops the transmission of sensor data for the non-attention sensor (sensor 20 other than the attention sensor) among the sensors 20 corresponding to the virtual sensor processing unit 90, but also performs a power saving mode (power saving mode (). For example, it may be operated in the so-called sleep mode).

In the configuration shown in FIG. 6, two application servers 70-1 and 70-2 are arranged. In the following, as shown in FIG. 6, it is assumed that the applications 71-1 and 72-2 are installed on the application servers 70-1 and 70-2.

The applications 71-1 and 71-2 will be described as collecting sensor data from the virtual sensor processing unit 90-1 of the data collection server 50A and processing the collected sensor data, respectively. In other words, in the second embodiment, the applications 71-1 and 71-2 specify the virtual sensor processing unit 90 (virtual sensor ID) in the sensor data use request signal transmitted to the sensor management control server 60A. It shall be.

(B-2) Operation of the Second Embodiment Next, the operation of the sensor data processing system 100A (data acquisition server 50A, sensor management control server 60A) of the second embodiment having the above configuration will be described. ..

FIG. 10 is a flowchart showing a control operation of each sensor 20 and a virtual sensor (virtual sensor processing unit 90) by the sensor data processing system 100A (data collection server 50A, sensor management control server 60A).

The data acquisition server 50A and the sensor management control server 60A manage and control each virtual sensor processing unit 90 by processing the flowchart as shown in FIG. 10 for each virtual sensor processing unit 90.

First, it is assumed that the data provision processing unit 53A of the data collection server 50A reads the virtual sensor information database 65 of the sensor management control server 60A and forms the virtual sensor processing unit 90-1 (S201). The virtual sensor processing unit 90-1 provides each application 71 with the contents of integrating (merging) the sensor data of the sensors 20-1 and 20-2 recorded in the sensor data recording unit 54.

After that, the sensor data transmission control processing unit 62A of the sensor management control server 60A receives a sensor data usage request signal for which the virtual sensor processing unit 90-1 is designated (virtual sensor IDvI1 is designated) from any of the applications 71. (S202). It should be noted that the sensor data use request signal includes the sensor value information of interest as in the first embodiment.

Upon receiving the sensor data use request signal, the sensor data transmission control processing unit 62A refers to the virtual sensor information database 65, and the sensor 20-1 (sensor) corresponding to the virtual sensor processing unit 90-1 (virtual sensor ID: I1). From the ID: I1) and the sensor 20-2 (sensor ID: I2), the sensor of interest to transmit the sensor data is determined (S203). The method and order in which the sensor data transmission control processing unit 62A selects the sensor of interest is not limited. In the following, the sensor data transmission control processing unit 62A initially selects the sensor of interest according to a predetermined rule (for example, the sensor 20 having the smallest ID number is selected), and thereafter, the sensor 20 which was the non-attention sensor last time is newly selected. Attention sensor shall be selected. Here, since the sensors 20 corresponding to the virtual sensor processing unit 90-1 are the sensors 20-1 and 20-2, these two sensors 20-1 and 20-2 are alternately selected as the attention sensor. Will be done.

Next, the sensor data transmission control processing unit 62A transmits a sensor data transmission request signal to the sensor 20 newly selected as the sensor of interest (S204). At this time, the sensor data transmission control processing unit 62A shall also set a period from the start to the stop of the sensor data transmission (hereinafter referred to as “sensor data collection period”) in the sensor data transmission request signal. .. As a result, when the sensor 20 receives the sensor data transmission request signal, the sensor 20 performs a process of transmitting sensor data at each sensor data transmission cycle until the set sensor data collection period elapses.

As a result, transmission of sensor data is started from the sensor 20 that has become the sensor of interest, and is held by the data acquisition server 50A (virtual sensor processing unit 90-1) via the wireless communication device 30 and the gateway 40. ..

Next, the sensor data transmission control processing unit 62A of the sensor management control server 60A reads the sensor data (sensor data newly acquired from the sensor of interest) acquired by the virtual sensor processing unit 90-1, and considers the read sensor data. Then, it is determined whether or not the timing for stopping the sensor data transmission of the current attention sensor has elapsed (S206). When the sensor management control server 60A determines that the timing for stopping the sensor data transmission of the attention sensor has elapsed, the process proceeds to step S207 described later, and determines that the timing for stopping the sensor data transmission of the attention sensor has not elapsed. If so, the process returns to step S205 described above and proceeds to the process of acquiring the next sensor data.

When it is determined in step S206 above that the timing to stop the sensor data transmission of the sensor of interest has elapsed, the sensor management control server 60A determines whether or not the application 71 is using the sensor data of the virtual sensor processing unit 90-1. Confirm (S207). If the application 71 using the sensor data of the virtual sensor processing unit 90-1 remains, the sensor management control server 60A returns to step S203 described above to move to the next selection of the sensor of interest, and performs virtual sensor processing. If the application 71 using the sensor data of the unit 90-1 does not remain, the process of this flowchart is terminated. For example, the sensor management control server 60A receives a sensor data use request signal from the application 71 for the virtual sensor processing unit 90-1, and then notifies that the use of the sensor data of the virtual sensor processing unit 90-1 is stopped. When (hereinafter, referred to as "sensor data use stop signal") is received, it may be recognized that the use of the virtual sensor processing unit 90-1 by the application 71 has been stopped.

Next, a specific example will be described when the data acquisition server 50A and the sensor management control server 60A control the virtual sensor processing unit 90-1 according to the flowchart of FIG.

FIG. 11 is a graph showing the sensor values of each sensor 20 and the virtual sensor processing unit 90 collected by the data acquisition server 50A in a graph format. In FIG. 11, the vertical axis is the sensor value and the horizontal axis is the time t. 11 (a) shows the sensor value of the sensor 20-1, FIG. 11 (b) shows the sensor value of the sensor 20-2, and FIG. 11 (c) shows the virtual sensor processing unit 90-1. Indicates the sensor value held by.

As shown in FIG. 11, in this embodiment, the sensors 20-1 and 20-2 are alternately selected as the sensors of interest by the sensor data transmission control processing unit 62A, and the sensor data is collected.

Further, here, it is assumed that the application 71-1 transmits the sensor data use request signal designated by the virtual sensor processing unit 90-1 to the sensor management control server 60A. Here, attention is paid to the information that "the amount of change per 10 seconds is 1 or more" (the sensor value when the amount of change per 10 seconds is 1 or more) as the sensor value information of interest in the sensor data usage request signal. Information to that effect) is assumed to have been set.

Further, here, the sensor data transmission control processing unit 62A shall, in principle, perform a process of switching the attention sensor every minute. However, the sensor data transmission control processing unit 62A receives the latest sensor value one minute after the sensor data collection for the current sensor of interest is started (for example, after the sensor data transmission request signal is transmitted). When the sensor value of interest corresponds to the sensor value information of interest, a process of extending the period for collecting sensor data for the sensor of interest (for example, a process of transmitting a sensor data transmission request signal for which an extension period for the sensor data collection period is set). ) Shall be performed. In other words, the sensor data transmission control processing unit 62A sets the sensor data collection period to a predetermined period (for example, when the latest acquired sensor value corresponds to the attention sensor value information at the end of the sensor data collection period of the current attention sensor. 10 seconds) shall be extended. Further, after the sensor data transmission control processing unit 62A extends the sensor data collection period, even at the end of the sensor data collection period after the extension, the latest acquired sensor value also corresponds to the sensor value information of interest. , The sensor data collection period may be extended again.

Further, the sensor data transmission control processing unit 62A may receive sensor data usage request signals from a plurality of applications 71 for one virtual sensor processing unit 90. In this case, the sensor data transmission control processing unit 62A similarly performs sensor data when the sensor value recently acquired from the attention sensor corresponds to the attention sensor value information of any application 71 at the end of the sensor data collection period. The collection period may be extended again.

In FIG. 11, when the sensor management control server 60A (sensor data transmission control processing unit 62A) receives a sensor data use request signal from one application 71-1 for the virtual sensor processing unit 90-1, the data collection server 50A. Each sensor value managed by (sensors 20-1, 20-2, and each sensor value of the virtual sensor processing unit 90-1) is shown.

In FIG. 11, when the sensor data transmission control processing unit 62A switches the attention sensor according to the above policy, the sensors collected from the sensors 20-1 and 20-2 and the virtual sensor processing unit 90-1. Shows the value.

First, here, as shown in FIGS. 11A and 11C, the sensor data transmission control processing unit 62A first selects the sensor 20-1 as the sensor of interest, and from time T101 to time T102. It is assumed that the sensor data is transmitted for 1 minute. At the time T102, the sensor data collection period with the sensor 20-1 as the sensor of interest reaches the end, but at this point, the fluctuation amount of the sensor value of the sensor 20-1 is less than the predetermined amount (variation less than 1 per 10 seconds). Therefore, the sensor data transmission control processing unit 62A switches the sensor of interest to the sensor 20-2 at the time point T102.

After that, the sensor data transmission control processing unit 62A uses the sensor 20-2 as the sensor of interest to transmit the sensor data for one minute from the time T102 to the time T103. At the time T103, the sensor data collection period with the sensor 20-2 as the sensor of interest reaches the end, but at this point the fluctuation amount of the sensor value of the sensor 20-2 is less than the predetermined value, so that the sensor data transmission control processing unit 62A will switch the attention sensor to the sensor 20-1 at the time T103.

After that, the sensor data transmission control processing unit 62A uses the sensor 20-1 as the sensor of interest to transmit the sensor data for one minute from the time T103 to the time T104-1. At the time T104-1, the sensor data collection period with the sensor 20-1 as the sensor of interest reaches the end, but at this point, the latest fluctuation amount of the sensor value of the sensor 20-1 is more than a predetermined amount (1 or more per 10 seconds). ), Therefore, the sensor data transmission control processing unit 62A extends the sensor data acquisition period using the sensor 20-1 as the sensor of interest by 10 seconds. After that, the sensor data transmission control processing unit 62A determines whether or not the sensor data collection period needs to be extended every 10 seconds.

At the time of time T104-2 10 seconds after the time T104-1, the amount of fluctuation of the sensor value of the sensor 20-1 is still more than a predetermined amount (1 or more per 10 seconds), so even at the time of time T104-2. The sensor data transmission control processing unit 62A further extends the sensor data collection period using the sensor 20-1 as the sensor of interest for another 10 seconds.

After that, at the time point T104-3, which is 10 seconds after the time T104-2, the fluctuation amount of the sensor value of the sensor 20-1 became less than a predetermined time, so that the sensor data transmission control processing unit 62A performed the time T104-3. At this point, the sensor of interest will be switched to sensor 20-2.

After that, the sensor data transmission control processing unit 62A transmits the sensor data for 1 minute from the time T104-3 to the time T105 by using the sensor 20-2 as the sensor of interest, and the sensor data collection period reaches the end.

As described above, when the sensor data transmission control processing unit 62A switches the attention sensor, when the sensor data collection period elapses, the sensor value of the attention sensor corresponds to the attention sensor value information (application 71-). In the case where 1 is the fluctuation amount of interest), the attention sensor is not switched, so that the continuity of the sensor values held by the virtual sensor processing unit 90-1 can be maintained.

In FIG. 12, when the sensor management control server 60A (sensor data transmission control processing unit 62A) receives sensor data use request signals from two applications 71-1 and 71-2 for the virtual sensor processing unit 90-1. Each sensor value managed by the data collection server 50A (each sensor value of the sensor 20-1, 20-2, and the virtual sensor processing unit 90-1) is shown.

As described above, it is assumed that the applications 71-1 and 71-2 are applications that use the same sensor value (sensor data) of the virtual sensor processing unit 90-1. Here, it is assumed that the application 71-1 pays attention to the fluctuation amount in the attention sensor value information as in the example of FIG. 11 described above. Further, here, it is assumed that the application 71-2 specifies a predetermined sensor value (attention is paid to the sensor value) in the attention sensor value information. Specifically, here, it is assumed that the application 71-1 specifies "a fluctuation amount of 1 or more in 10 seconds" as the attention sensor value information. Further, here, it is assumed that the application 71-2 specifies "Th or more" as the attention sensor value information.

In FIG. 12, first, the sensor 20-1 is selected as the sensor of interest at the time T201, and at the time T202 one minute after the time T201, the sensor value of the sensor 20-1 is the application 71-1, 71-. It is not in a state corresponding to any of the attention sensor value information of 2. Therefore, the sensor of interest is switched to the sensor 20-2 at the time T202. Further, even at the time of T203 one minute later, the sensor value of the sensor 20-2 is not in a state corresponding to any of the attention sensor value information of the applications 71-1 and 71-2. Therefore, at the time of time T203, the attention sensor is switched to the sensor 20-1.

Then, at the time of T204-1 one minute after the time T203, the sensor value of the sensor 20-1 is not in a state corresponding to the attention sensor value information of the application 71-2 (a state of Th or more). However, it is in a state corresponding to the attention sensor value information of the application 71-1 (a state in which a fluctuation amount of 1 or more is generated in 10 seconds). Therefore, at time T204-1, the sensor data acquisition period is extended by 10 seconds.

Then, at the time point T204-2 10 seconds after the time T204-1, the sensor value of the sensor 20-1 corresponds to the state of interest sensor value information of the application 71-1 (variation amount of 1 or more per 10 seconds). Is not in the state where the above occurs), but it is in the state corresponding to the attention sensor value information of the application 71-2 (the state of Th or more). Therefore, at time T204-2, the sensor data acquisition period is extended by 10 seconds.

Then, at the time point T204-3, which is 10 seconds after the time T204-2, the sensor value of the sensor 20-1 corresponds to any of the attention sensor value information of the application 71-1 or 71-2. Not even. Therefore, at the time of T206-3, the sensor data acquisition period in which the attention sensor is the sensor 20-1 ends, and the attention sensor is switched to 20-2.

As described above, the sensor data transmission control processing unit 62A provides the virtual sensor processing unit 90 common to one or a plurality of applications 71 based on the sensor data usage request signals from the plurality of applications 71, and is efficient. It is possible to provide an environment for collecting sensor data.

(B-3) Effect of the second embodiment According to the second embodiment, the following effects can be obtained.

In the second embodiment, the data collection server 50A (data provision processing unit 53A) is provided with a virtual sensor (virtual sensor processing unit 90), and the attention sensor (sensor data transmission control processing) among the plurality of sensors 20 corresponding to the virtual sensor is provided. By stopping the sensor data transmission from the sensor 20 other than the sensor 20) selected by the unit 62A, the probability of becoming congested in the sensor data transmission path (for example, the sensor network N1, the backbone network N2, the gateway 40) is determined. It has the effect of being able to be reduced.

(C) Other Embodiments The present invention is not limited to each of the above embodiments, and modified embodiments as illustrated below can also be mentioned.

(C-1) In each of the above embodiments, the sensor data processing systems 100 and 100A are configured by using the data acquisition servers 50 and 50A and the sensor management control servers 60 and 60A, but a specific hardware configuration is used. Is not limited to. For example, some functions of the data acquisition servers 50 and 50A and the sensor management control servers 60 and 60A may be mounted on hardware different from the above embodiment (for example, gateway 40 or the like). In that case, the hardware will also be incorporated into the sensor data processing systems 100 and 100A.

(C-2) In each of the above embodiments, the application 71 is configured to be mounted on the application server 70, but the hardware on which the application 71 is mounted is other hardware (for example, another sensor network). It may be a device connected to N1).

(C-3) In each of the above embodiments, the sensor data processing systems 100 and 100A and the application 71 are shown separately, but the application 71 may be incorporated into the sensor data processing systems 100 and 100A. In other words, the sensor data processing systems 100 and 100A may be configured to include the application 71. For example, the application server 70 may be incorporated in the sensor data processing systems 100 and 100A, or the application 71 may be mounted in the sensor data processing systems 100 and 100A and the data collection servers 50 and 50A.

(C-4) In the above embodiment, an example of applying the data processing system of the present invention to the sensor data processing systems 100 and 100A for processing sensor data has been described, but the object to be processed by the data processing system of the present invention has been described. Data is not limited to sensor data. For example, in each of the above embodiments, the sensor 20 may be another device (for example, a device in another IoT (Internet of Things) system) that outputs a numerical value that fluctuates in a time series. In other words, in the data processing system of the present invention, the source of the data to be processed (hereinafter, also simply referred to as “data source”) does not necessarily have to be a sensor, and other devices (for example, various IoT). It may be a device in the system, etc.).

(C-5) In each of the above embodiments, the sensor data transmission control processing units 62 and 62A control each sensor 20 by transmitting a sensor data transmission request signal to each sensor 20, but other Each sensor 20 may be controlled by a method (for example, polling or other method).

(C-6) In the second embodiment, the sensor data transmission control processing unit 62A collects the latest sensor data from the attention sensor while the selected sensor of interest is transmitting data, as in the first embodiment. When is applicable to the sensor value information of interest, control such as shortening the sensor data transmission cycle may be performed.

10, 10-1 to 10-N ... Sensor node, 20, 20-1 to 20-N ... Sensor, 30, 30-1 to 30-N ... Wireless communication device, N1 ... Sensor network, N2 ... Core network, 43 ... Sensor data recording unit, 40 ... Gateway, 50 ... Data collection server, 51 ... Communication unit, 52 ... Data collection processing unit, 53 ... Data provision processing unit, 54 ... Sensor data recording unit, 60 ... Sensor management control server, 61 ... Communication unit, 62 ... Sensor data transmission control processing unit, 63 ... Data acquisition request information recording unit, 64 ... Sensor setting information recording unit, 70 ... Application server, 71 ... Application.

Claims (4)

Controls the transmission timing of the data of the data source via the wireless communication device according to the data usage request signal from the application that performs predetermined processing using the data collected from the data source connected to the wireless communication device. Data transmission control processing unit and
A data collection processing unit that collects data transmitted from the wireless communication device, and
It is provided with a data providing processing unit that provides the data collected by the data collecting processing unit to the application.
The data transmission control processing unit changes the control content of the data source according to the content of the data of the data source collected by the data collection processing unit.
The data providing processing unit has a virtual data source processing unit that provides data acquired from the plurality of data sources to one or a plurality of the applications as data of one virtual data source.
The data transmission control processing unit performs selection processing for selecting the data source to be transmitted from among the plurality of data sources corresponding to the virtual data source, and the plurality of data transmission control processing units corresponding to the virtual data source. Control is performed to transmit data only to the data source selected by the selection process among the data sources.
A data processing system characterized by that. The data transmission control processing unit performs a process of selecting a different data source for each predetermined data transmission period as the selection process, and at the end of the data transmission period, the data source selected by the selection process. When the content of the data acquired from the above corresponds to the attention information describing the content of the data of interest of the application included in the data usage request signal, the data transmission period to the data source selected by the selection process. The data processing system according to claim 1 , wherein the data processing system is extended. The data transmission control processing unit operates the data generation source other than the data generation source selected by the selection processing among the plurality of data generation sources corresponding to the virtual data generation source in the power saving mode. 2. The data processing system according to claim 2 . In the data processing method
It is equipped with a data transmission control processing unit, a data collection processing unit, and a data provision processing unit.
The data transmission control processing unit generates the data via the wireless communication device according to a data usage request signal from an application that performs predetermined processing using the data collected from the data source connected to the wireless communication device. Control the transmission timing of the source data,
The data collection processing unit collects data transmitted from the wireless communication device, and collects data.
The data providing processing unit provides the data collected by the data collecting processing unit to the application.
The data transmission control processing unit changes the control content of the data source according to the content of the data of the data source collected by the data collection processing unit.
The data providing processing unit has a virtual data source processing unit that provides data acquired from the plurality of data sources to one or a plurality of the applications as data of one virtual data source.
The data transmission control processing unit performs selection processing for selecting the data source to be transmitted from among the plurality of data sources corresponding to the virtual data source, and the plurality of data transmission control processing units corresponding to the virtual data source. Control is performed to transmit data only to the data source selected by the selection process among the data sources.
A data processing method characterized by that.

Images