Data acquisition device, data acquisition method, data acquisition program, and data acquisition system

Abstract

To provide a technique that reduces an amount of data communicated between a data collection device and a wireless capture device, thereby making it difficult for communication delays or communication errors to occur.SOLUTION: A data collection device 10 collects capture data received via wireless communication by a plurality of wireless capture devices 20. The data collection device 10 includes a communication unit, a storage unit, and a control unit. The communication unit receives the capture data by communicating with the wireless capture devices 20. The storage unit stores the capture data received by the communication unit and transmission conditions that define conditions for capture data to be received by the communication unit from the wireless capture devices 20. The control unit reads out the transmission conditions from the storage unit, and transmits the transmission conditions to the wireless capture devices 20 using the communication unit, thereby setting the transmission conditions in the wireless capture devices 20.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention mainly relates to a data collection device that collects capture data received by a plurality of wireless capture devices through wireless communication.

Background Art

[0002] The visualization data processing system of Patent Document 1 includes a wireless quality data server, a sensor device, and a communication device. The sensor device transmits data acquired by wireless communication from the communication device to the wireless quality data server. The wireless quality data server stores the data received from the sensor device. The wireless quality data server performs data reduction processing on the stored data and stores the data after data reduction. The wireless quality data server visualizes data related to wireless quality to create visualization data.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Generally, when aggregating data acquired by a wireless capture device in a data collection device, as the amount of communication data between the wireless capture device and the data collection device increases, communication delays or communication errors are likely to occur. In this regard, Patent Document 1 only describes a process for reducing the amount of data stored in a wireless quality data server (data collection device). That is, Patent Document 1 does not describe a process for reducing the amount of communication data between a sensor device (wireless capture device) and a wireless quality data server. Also, similarly in the communication between a plurality of wireless capture devices and a data collection device, if the amount of data exceeds the allowable capacity of the communication line, there is a risk that the data collection device may not be able to receive all the data.

[0005] This invention has been made in view of the above circumstances, and its main objective is to provide a technology that reduces the amount of data transmitted between a data acquisition device and a wireless capture device, thereby making communication delays or errors less likely to occur. Means and effects for solving the problem

[0006] The problems that this invention aims to solve are as described above, and next, the means for solving these problems and their effects will be explained.

[0007] According to a first aspect of the present invention, a data acquisition device is provided with the following configuration. That is, the data acquisition device collects capture data received by a plurality of wireless capture devices via wireless communication. The data acquisition device comprises a communication unit, a storage unit, and a control unit. The communication unit receives the capture data by communicating with the wireless capture devices. The storage unit stores the capture data received by the communication unit and transmission conditions that define the conditions for the capture data to be received by the communication unit from the wireless capture devices. The control unit reads the transmission conditions from the storage unit and uses the communication unit to transmit the transmission conditions to the wireless capture devices, thereby setting the transmission conditions in the wireless capture devices.

[0008] This reduces the amount of captured data transmitted from the wireless capture device to the data acquisition device. As a result, communication between the wireless capture device and the data acquisition device is less likely to be strained, thus reducing the likelihood of communication delays or errors.

[0009] In the data acquisition device described above, it is preferable that the control unit sets different transmission conditions for each wireless capture device.

[0010] This allows for more precise selection and collection of only the necessary capture data. As a result, the amount of capture data transmitted from the wireless capture device to the data acquisition device can be further reduced.

[0011] In the data acquisition device described above, it is preferable that the control unit sets the transmission conditions, including the wireless communication channel used by the wireless capture device to receive the captured data.

[0012] This allows for the collection of selected capture data using wireless communication channels.

[0013] In the data acquisition device described above, it is preferable that the control unit sets the transmission conditions, including the frame type of the captured data.

[0014] This allows for the collection of captured data that has been selected based on the frame type of the captured data.

[0015] In the data acquisition device described above, it is preferable that the control unit sets a period and sets different transmission conditions for each periodic sequence.

[0016] This allows for the selection of capture data using different transmission conditions for each periodic sequence, enabling the collection of a variety of capture data.

[0017] In the data acquisition device described above, it is preferable that the control unit sets the transmission conditions to change the wireless communication channel used for receiving the captured data to a different channel at predetermined intervals within the cycle.

[0018] This allows for the acquisition of capture data using multiple channels within a single cycle, enabling more flexible responses.

[0019] In the data acquisition device described above, it is preferable that the control unit reads out all of the transmission conditions for multiple periods at once and transmits the transmission conditions to the wireless capture device using the communication unit.

[0020] This reduces the number of communications compared to a method that sets transmission conditions for each cyclical sequence.

[0021] In the data acquisition device described above, it is preferable that the control unit transmits the transmission conditions to the wireless capture device using the communication unit before authorizing the wireless capture device to transmit the captured data.

[0022] This prevents unnecessary capture data from being transmitted from the wireless capture device to the data acquisition device, thus reducing the amount of data transmitted.

[0023] A second aspect of the present invention provides the following data acquisition method. Specifically, the data acquisition method involves collecting capture data received by a plurality of wireless capture devices via wireless communication. The data acquisition method includes a reading step, a setting step, and a collection step. In the reading step, transmission conditions that define the conditions for the capture data to be received from the wireless capture devices are read. In the setting step, the transmission conditions read in the reading step are transmitted to the wireless capture devices to set the transmission conditions in the wireless capture devices. In the collection step, the capture data transmitted by the wireless capture devices and selected using the transmission conditions is received.

[0024] A third aspect of the present invention provides a data acquisition program with the following configuration. That is, the data acquisition program is a program for acquiring capture data received by a plurality of wireless capture devices via wireless communication, and the data acquisition program causes the data acquisition device to perform a read step, a setting step, and an acquisition step. In the read step, the data acquisition device reads out transmission conditions that define the conditions for the capture data to be received by the data acquisition device from the wireless capture device. In the setting step, the transmission conditions read out in the read step are transmitted to the wireless capture device to set the transmission conditions in the wireless capture device. In the acquisition step, the data acquisition device receives the capture data transmitted by the wireless capture device and selected using the transmission conditions.

[0025] According to a fourth aspect of the present invention, a data collection system having the following configuration is provided. That is, the data collection system includes a plurality of wireless capture devices and a data collection device. The data collection device collects capture data received by the plurality of wireless capture devices through wireless communication. The data collection device includes a communication unit, a storage unit, and a control unit. The communication unit receives the capture data by communicating with the wireless capture device. The storage unit stores the capture data received by the communication unit and a transmission condition that determines a condition for the capture data received by the communication unit from the wireless capture device. The control unit reads the transmission condition from the storage unit, and uses the communication unit to transmit the transmission condition to the wireless capture device to set the transmission condition in the wireless capture device.

Brief Description of Drawings

[0026] [Figure 1] Block diagram of a data collection system according to an embodiment of the present invention. [Figure 2] Explanatory diagram showing an overview of the processing flow of the data collection system. [Figure 3] Sequence diagram of the data collection system. [Figure 4] Flowchart showing the processing performed by the wireless capture device after the start of capture. [Figure 5] Table showing the content of the transmission condition stored in the data collection device.

Embodiments for Carrying Out the Invention

[0027] Next, embodiments of the present invention will be described with reference to the drawings. First, referring to FIG. 1, the configuration of the data collection system 1 will be described.

[0028] The data acquisition system 1 is installed, for example, in a factory. The factory is equipped with multiple industrial machines 30. The industrial machines 30 are, for example, robots or machine tools. The industrial machines 30 are equipped with wireless communication equipment, either internally or externally, and are capable of wireless communication. The industrial machines 30 transmit operating status or sensor detection results, etc., via wireless communication. In addition, the industrial machines 30 transmit data such as operating status or sensor detection results via wireless communication via an access point 40, based on instructions from the administrator of the data acquisition system 1 or a PC 50 of a user using the system. Hereinafter, the data acquisition system 1 in the embodiment of the present invention will be described using the collection of data transmitted wirelessly by the industrial machines 30 as an example.

[0029] Furthermore, the data collection system 1 is not limited to the purpose of collecting data from industrial machinery 30 in a factory, but may also be installed in other facilities, such as offices or warehouses. In this case, the data collection system 1 collects data transmitted wirelessly by various devices installed in the facility.

[0030] As shown in Figure 1, the data acquisition system 1 comprises a data acquisition device 10 and a plurality of wireless capture devices 20.

[0031] The data acquisition device 10 collects data received by the wireless capture device 20 from wireless communication between the industrial machine 30 and the PC 50. In other words, the data acquisition device 10 collects data captured by the wireless capture device 20 from wireless communication primarily between the industrial machine 30 and the PC 50. Capture means collecting wireless data (wireless frames) present around the device (within the range where radio waves can be received). The data acquisition device 10 is a computer such as a PC or server. The data acquisition device 10 comprises a control unit 11, a storage unit 12, and a communication unit 13.

[0032] The control unit 11 is an arithmetic unit such as a CPU, and the storage unit 12 is a storage device such as an HDD, SSD, or flash memory. The storage unit 12 stores a data acquisition program. The control unit 11 executes the data acquisition program to perform the processing described later to acquire data and stores the acquired data in the storage unit 12. In the following description, the communication unit 13 is a wired communication module including a connector and a communication board. The communication unit 13 performs wired communication with the wireless capture device. The communication unit 13 may also be a wireless communication module that performs wireless communication with the wireless capture device 20.

[0033] The wireless capture device 20 is a communication device that communicates with other communication devices via a network, and comprises a processing unit such as a CPU, a storage device such as an HDD, SSD, or flash memory, a wired communication module, and a wireless communication module. The wireless capture device 20 can perform various processes by having the processing unit execute a program stored in the storage device. The wireless capture device 20 communicates with the data acquisition device 10 via wired communication using the wired communication module. The wireless capture device 20 communicates with the industrial machine 30 via wireless communication using the wireless communication module. The wireless capture device 20 also acquires wireless data (wireless frames) present around itself (within the range where radio waves can be received). In this embodiment of the present invention, an example of acquiring (capturing) wireless data in wireless communication between the industrial machine 30 and the PC 50 will be described.

[0034] Next, with reference to Figures 2(a) to 2(c), an overview of the data acquisition method in which the data acquisition system 1 collects data in wireless communication between the industrial machine 30 and the PC 50 via the wireless capture device 20 will be described.

[0035] If the same processing as described in Patent Document 1 above is performed, the wireless capture device 20 will transmit all the data received from the industrial machine 30 to the data acquisition device 10. As a result, communication delays or communication errors may occur. In view of this, the objective of the data acquisition method of this embodiment is to reduce the amount of data transmitted between the data acquisition device 10 and the wireless capture device 20 (especially the amount of data transmitted from the wireless capture device 20 to the data acquisition device 10). Specifically, the wireless capture device 20 transmits only the necessary data from the data received from the industrial machine 30 to the data acquisition device 10.

[0036] Therefore, as shown in Figure 2(a), the data acquisition device 10 transmits transmission conditions to the wireless capture device 20 in advance. The transmission conditions define the conditions for the data that the data acquisition device 10 (communication unit 13) will receive from the wireless capture device 20. The wireless capture device 20 transmits only data that satisfies the transmission conditions to the data acquisition device 10. Details of the transmission conditions will be described later.

[0037] Next, as shown in Figure 2(b), the data acquisition device 10 instructs the wireless capture device 20 to start capturing. In the following description, the data captured by the wireless capture device 20 during wireless communication between the industrial machine 30 and the PC 50 via the access point 40 may be referred to as captured data.

[0038] Subsequently, as shown in Figure 2(c), the wireless capture device 20 transmits only the capture data that satisfies the transmission conditions (i.e., only the necessary capture data) from the received capture data to the data acquisition device 10.

[0039] This reduces the amount of data transmitted compared to the case where all captured data is transmitted from the wireless capture device 20 to the data acquisition device 10. As a result, communication delays or errors are less likely to occur.

[0040] Next, with reference to Figures 3 to 5, the details of the processing performed by the data acquisition device 10 and the wireless capture device 20 will be explained. In the following explanation, the first wireless capture device 20A and the second wireless capture device 20B will be used as examples of the wireless capture device 20.

[0041] The transmission conditions are stored in the storage unit 12 of the data acquisition device 10. The control unit 11 reads the transmission conditions for the capture data received from the wireless capture device from the storage unit 12 (reading process, reading step). Then, the control unit 11 uses the communication unit 13 to transmit the respective transmission conditions to the first wireless capture device 20A and the second wireless capture device 20B (sequence number S1, setting process, setting step).

[0042] Figure 5 illustrates the transmission conditions stored in the data acquisition device 10 (specifically the control unit 11). In the example shown in Figure 5(a), the transmission conditions include the wireless capture device ID, period order, channel, and frame type. In the example shown in Figure 5(b), the transmission conditions include the wireless capture device ID, period order, duration, channel order, and frame type. The difference between the transmission conditions in Figure 5(a) and Figure 5(b) is the duration and channel order.

[0043] The wireless capture device ID is unique information that identifies the wireless capture device 20 for which transmission conditions are set. For example, the wireless capture device ID can be a MAC address, a local IP address, or other string. In this embodiment, the wireless capture device ID is used to distinguish the wireless capture devices 20, and different transmission conditions are set for each wireless capture device 20. Note that if the same transmission conditions are set for all wireless capture devices 20, the wireless capture device ID may be omitted from the transmission conditions.

[0044] The cycle sequence is the cycle for switching transmission conditions. The duration of one cycle is predetermined, and each time the duration of one cycle elapses, the transmission conditions are changed to the next cycle (for example, from the first cycle to the second cycle). Figure 5 shows transmission conditions for three cycles, but transmission conditions for two or fewer cycles or four or more cycles may also be set. Furthermore, it is not mandatory to change the transmission conditions for each cycle sequence.

[0045] The channel is the channel used by the wireless capture device 20 for wireless communication. In other words, the wireless capture device 20 receives capture data from the industrial machine 30 using the channel set in the transmission conditions.

[0046] The frame type indicates the type of data in the packet transmitted by the industrial machine 30 via the access point 40. The frame type is described in the packet header. Figure 5 shows Beacon frames, Management frames, and Data frames as examples. Note that either the channel or the frame type may be used as the transmission condition.

[0047] In the transmission conditions shown in Figure 5(a), wireless communication is performed using the same channel within one cycle. In contrast, in the transmission conditions shown in Figure 5(b), wireless communication is performed while switching channels within one cycle. Therefore, the transmission conditions shown in Figure 5(b) include both the time period and channel conditions.

[0048] The example transmission conditions shown in Figure 5(b) are intended to collect data about the wireless environment surrounding the first wireless capture device 20A, rather than collecting communication data between the industrial machine 30 and the PC 50. The period is the time required to change the wireless communication channel used for receiving the capture data to a different channel at predetermined intervals (each time a predetermined period has elapsed) within one cycle. As shown in Figure 5(b), the period is, for example, 1 second.

[0049] The channel sequence is the order in which the wireless communication channel used for receiving capture data is changed to a different channel at predetermined intervals (each time a predetermined period has elapsed) within one cycle. As shown in Figure 5(b), for example, the channel is changed in the order of 1ch, 3ch, 5ch each time a predetermined period (e.g., 1 second) has elapsed, thereby changing the wireless communication channel used by the wireless capture device 20 for reception.

[0050] The transmission conditions are pre-generated and stored in the storage unit 12 of the data acquisition device 10, based on the channel used by the industrial machine 30, the content of the packets transmitted by the industrial machine 30, the positional relationship between the industrial machine 30 and the wireless capture device 20, etc.

[0051] The first wireless capture device 20A and the second wireless capture device 20B store the transmission conditions associated with their respective wireless capture device IDs transmitted from the data acquisition device 10. This completes the setting of the transmission conditions associated with each of the first wireless capture device 20A and the second wireless capture device 20B.

[0052] Next, as shown in Figure 3, the control unit 11 uses the communication unit 13 to transmit a capture start instruction to the first wireless capture device 20A and the second wireless capture device 20B (sequence number S2). As a result, the first wireless capture device 20A and the second wireless capture device 20B receive the captured data from the industrial machine 30 and transmit the captured data to the data acquisition device 10. In other words, the capture start instruction can also be rephrased as an instruction to the wireless capture device 20 to authorize the transmission of captured data to the data acquisition device 10.

[0053] As a result, the first wireless capture device 20A and the second wireless capture device 20B begin receiving data from the industrial machine 30 (sequence number S3). Next, the first wireless capture device 20A and the second wireless capture device 20B check whether the captured data received from the industrial machine 30 satisfies the stored transmission conditions (sequence number S4). The first wireless capture device 20A and the second wireless capture device 20B transmit only the captured data that satisfies the transmission conditions to the data acquisition device 10 (sequence number S5). As a result, the data acquisition device 10 receives the desired captured data that conforms to the transmission conditions (specifically, the captured data desired by the administrator of the data acquisition system 1 or the users using the system) and stores it in the storage unit 12 (acquisition process, acquisition step). The wireless capture device 20 receives captured data that does not satisfy the transmission conditions, but does not transmit it to the data acquisition device 10. After that, the first wireless capture device 20A and the second wireless capture device 20B change the transmission conditions in cyclical order and continue capturing (sequence number S6). Thus, in this embodiment, only capture data that satisfies the transmission conditions is transmitted from the wireless capture device 20 to the data acquisition device 10.

[0054] Next, the processing of sequence numbers S3 to S6 of the wireless capture device 20 will be explained in more detail with reference to the flowchart in Figure 4.

[0055] After starting to receive the captured data, the wireless capture device 20 determines whether the cycle time has elapsed (S101). Until it determines that the cycle time has elapsed, the wireless capture device 20 transmits the captured data that satisfies the transmission conditions for the current cycle to the data acquisition device 10 (S102).

[0056] Next, the wireless capture device 20 determines whether or not data has been captured for all transmission conditions of each cycle (S103). In the example shown in Figure 5, since three cycles are set, it determines whether or not the capture for the transmission conditions of the third cycle has been completed. If it determines that it has not been completed, the wireless capture device 20 switches to the transmission conditions of the next cycle (S104). For example, if the channel of the transmission conditions changes, the capture channel is changed in accordance with the change in the channel used for wireless communication between the industrial machine 30 and the PC 50, and the process returns to step S101 to continue receiving the captured data.

[0057] If the wireless capture device 20 determines that data has been captured for all transmission conditions, it sets the transmission conditions for the first cycle (1st cycle) (S105). After that, the wireless capture device 20 returns to the process in step S101 and continues to receive the captured data.

[0058] By repeating the above process, the wireless capture device 20 repeatedly receives capture data from the industrial machine 30 and transmits the capture data to the data acquisition device 10 according to the transmission conditions. When the wireless capture device 20 receives a command to stop capturing from the data acquisition device 10, it terminates the process shown in the flowchart of Figure 4.

[0059] As described above, the data acquisition device 10 (data acquisition system 1) of this embodiment performs the following data acquisition method by executing a data acquisition program. That is, the data acquisition device 10 collects capture data received by a plurality of wireless capture devices 20 via wireless communication. The data acquisition device 10 comprises a communication unit 13, a storage unit 12, and a control unit 11. The communication unit 13 receives capture data by communicating with the wireless capture devices 20. The storage unit 12 stores the capture data received by the communication unit 13 and transmission conditions that define the conditions for the capture data to be received by the communication unit 13 from the wireless capture devices 20. The control unit 11 reads the transmission conditions from the storage unit 12 and uses the communication unit 13 to transmit the transmission conditions to the wireless capture devices 20, thereby setting the transmission conditions for the wireless capture devices 20.

[0060] As a result, the wireless capture device transmits the captured data to the data acquisition device 10 according to its transmission conditions, thereby reducing the amount of captured data transmitted from the wireless capture device 20 to the data acquisition device 10. Therefore, communication between the wireless capture device 20 and the data acquisition device 10 is less likely to be strained, making communication delays or errors less likely to occur.

[0061] In the data acquisition device 10 of this embodiment, the control unit 11 sets different transmission conditions for each wireless capture device 20.

[0062] This allows for the more precise selection and collection of only the necessary capture data. As a result, the amount of capture data transmitted from the wireless capture device 20 to the data acquisition device 10 can be further reduced.

[0063] In the data acquisition device 10 of this embodiment, the control unit 11 sets the transmission conditions, including the wireless communication channel used by the wireless capture device 20 to receive the captured data.

[0064] This allows for the collection of selected capture data using wireless communication channels.

[0065] In the data acquisition device 10 of this embodiment, the control unit 11 sets transmission conditions, including the frame type of the captured data.

[0066] This allows for the collection of captured data that has been selected based on the frame type of the captured data.

[0067] In the data acquisition device 10 of this embodiment, the control unit 11 sets a period and sets different transmission conditions for each period sequence.

[0068] This allows for the selection of capture data using different transmission conditions for each periodic sequence, enabling the collection of a variety of capture data.

[0069] In the data acquisition device 10 of this embodiment, the control unit 11 sets transmission conditions to change the wireless communication channel used for receiving the captured data to a different channel at predetermined intervals in a cycle.

[0070] This allows for the acquisition of capture data using multiple channels within a single cycle, enabling more flexible responses.

[0071] In the data acquisition device 10 of this embodiment, the control unit 11 reads all transmission conditions for multiple cycles at once and transmits the transmission conditions to the wireless capture device 20 using the communication unit 13.

[0072] This reduces the number of communications compared to a method that sets transmission conditions for each cyclical sequence.

[0073] In the data acquisition device 10 of this embodiment, the control unit 11 transmits transmission conditions to the wireless capture device 20 using the communication unit 13 before authorizing the wireless capture device 20 to transmit the captured data.

[0074] This prevents unnecessary capture data from being transmitted from the wireless capture device 20 to the data acquisition device 10, thereby reducing the amount of data transmitted.

[0075] Although preferred embodiments of the present invention have been described above, the above configuration can be modified as follows, for example.

[0076] The sequence diagrams and flowcharts shown in the above embodiments are examples, and some processes may be omitted, some processes may be modified, or new processes may be added. For example, in the sequence diagram of Figure 3, the data acquisition device 10 transmits the transmission conditions and then transmits a capture start instruction. Alternatively, the transmission conditions and the capture start instruction may be transmitted to the wireless capture device 20 simultaneously. Also, in the flowchart of Figure 4, the wireless capture device 20 performs a capture of the transmission conditions for the first cycle after capturing the transmission conditions for the last cycle. Alternatively, the wireless capture device 20 may stop processing or perform a capture of other transmission conditions newly received from the data acquisition device 10 after capturing the transmission conditions for the last cycle. Furthermore, the data acquisition device 10 may transmit the transmission conditions to the wireless capture device 20 in cyclic order.

[0077] In the above embodiment, the wireless capture device 20 receives all data transmitted by the communicable industrial machine 30, but filter conditions may be set and only capture data that matches the filter may be received from the industrial machine 30.

[0078] The transmission conditions listed in the above embodiment are just examples, and other items may be added. For example, the MAC address or IP address of the industrial machine 30 may be included in the transmission conditions. [Explanation of Symbols]

[0079] 1. Data Acquisition System 10 Data Acquisition Device 11 Control Unit 12 Storage section 13 Communications Department 20 Wireless capture devices 30 Industrial Machinery

Claims

1. In a data acquisition device that collects capture data received by multiple wireless capture devices via wireless communication, A communication unit that receives the captured data by communicating with the wireless capture device, A storage unit that stores the capture data received by the communication unit and transmission conditions that define the conditions for the capture data received by the communication unit from the wireless capture device, A control unit reads the transmission conditions from the storage unit, transmits the transmission conditions to the wireless capture device using the communication unit, and sets the transmission conditions in the wireless capture device. Equipped with, The data acquisition device is characterized in that the control unit sets the transmission conditions, including the frame type of the captured data.

2. A data acquisition device that collects capture data received by a plurality of wireless capture devices via wireless communication, A communication unit that receives the captured data by communicating with the wireless capture device, A storage unit that stores the capture data received by the communication unit and transmission conditions that define the conditions for the capture data received by the communication unit from the wireless capture device, A control unit reads the transmission conditions from the storage unit, transmits the transmission conditions to the wireless capture device using the communication unit, and sets the transmission conditions in the wireless capture device. Equipped with, The control unit is characterized by setting a period and setting different transmission conditions for each periodic sequence.

3. A data acquisition device according to claim 1, The control unit is characterized by setting different transmission conditions for each wireless capture device.

4. A data acquisition device according to claim 1, The data acquisition device is characterized in that the control unit sets the transmission conditions, including the wireless communication channel used by the wireless capture device to receive the captured data.

5. A data acquisition device according to claim 2, The data acquisition device is characterized in that the control unit sets the transmission conditions to change the wireless communication channel used for receiving the capture data to a different channel at predetermined intervals within the cycle.

6. A data acquisition device according to claim 2, The data acquisition device is characterized in that the control unit reads out all of the transmission conditions for multiple periods at once and transmits the transmission conditions to the wireless capture device using the communication unit.

7. A data acquisition device according to claim 1, The data acquisition device is characterized in that the control unit transmits the transmission conditions to the wireless capture device using the communication unit before permitting the wireless capture device to transmit the capture data.

8. In a data acquisition method in which multiple wireless capture devices collect captured data received via wireless communication, A reading step of reading out transmission conditions that define the conditions for the capture data received from the wireless capture device, A setting step which involves transmitting the transmission conditions read in the reading step to the wireless capture device and setting the transmission conditions in the wireless capture device, A collection step of receiving the capture data selected using the transmission conditions transmitted by the wireless capture device, Includes, The data collection method is characterized in that the setting step involves setting the transmission conditions, including the frame type of the captured data.

9. In a data acquisition method in which multiple wireless capture devices collect captured data received via wireless communication, A reading step of reading out transmission conditions that define the conditions for the capture data received from the wireless capture device, A setting step which involves transmitting the transmission conditions read in the reading step to the wireless capture device and setting the transmission conditions in the wireless capture device, A collection step of receiving the capture data selected using the transmission conditions transmitted by the wireless capture device, Includes, The data collection method is characterized in that the setting step involves setting a period and setting different transmission conditions for each periodic sequence.

10. In a data acquisition program that collects capture data received by multiple wireless capture devices via wireless communication, To the data collection device, A reading step of reading transmission conditions that define the conditions for the captured data received by the data acquisition device from the wireless capture device, A setting step which involves transmitting the transmission conditions read in the reading step to the wireless capture device and setting the transmission conditions in the wireless capture device, A collection step of receiving the capture data selected using the transmission conditions transmitted by the wireless capture device, Make it run, A data acquisition program characterized in that, in the setting step, the transmission conditions, including the frame type of the captured data, are set.

11. In a data acquisition program that collects capture data received by multiple wireless capture devices via wireless communication, To the data collection device, A reading step of reading transmission conditions that define the conditions for the captured data received by the data acquisition device from the wireless capture device, A setting step which involves transmitting the transmission conditions read in the reading step to the wireless capture device and setting the transmission conditions in the wireless capture device, A collection step of receiving the capture data selected using the transmission conditions transmitted by the wireless capture device, Make it run, The data collection program is characterized in that, in the setting step, a period is set and different transmission conditions are set for each periodic sequence.