Data collection device, data collection method, data collection program, and data collection 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 primarily relates to a data collection device that collects capture data received by a plurality of wireless capture devices via wireless communication. [Background technology]

[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 from the communication device via wireless communication 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 a data reduction process 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] Patent Publication No. 2021-128401 Summary of the Invention [Problem to be solved by the invention]

[0004] In general, when data acquired by wireless capture devices is aggregated in a data collection device, as the amount of data in communication between the wireless capture devices and the data collection device increases, communication delays or communication errors are more 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). In other words, Patent Document 1 does not describe a process for reducing the amount of data in communication between a sensor device (wireless capture device) and the wireless quality data server. Similarly, in communication between multiple wireless capture devices and a data collection device, if the amount of data exceeds the capacity of the communication line, the data collection device may not be able to receive all the data.

[0005] The present invention has been made in view of the above circumstances, and a main object of the present invention is to provide a technology for reducing the 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.

[0006] The problem to be solved by the present invention has been described above. Next, the means for solving this problem and the effects thereof will be described.

[0007] According to a first aspect of the present invention, there is provided a data collection device having the following configuration. That is, the data collection device collects capture data received by a plurality of wireless capture devices via 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 devices. The storage unit stores the capture data received by the communication unit and transmission conditions that define conditions for the capture data to be received by the communication unit from the wireless capture devices. The control unit reads out the transmission conditions from the storage unit, and transmits the transmission conditions to the wireless capture devices using the communication unit, thereby setting the transmission conditions in the wireless capture devices.

[0008] This reduces the amount of capture data sent from the wireless capture device to the data collection device, which reduces communication congestion between the wireless capture device and the data collection device and reduces the occurrence of communication delays or communication errors.

[0009] In the data collection device, it is preferable that the control unit sets different transmission conditions for each of the wireless capture devices.

[0010] This allows only the necessary capture data to be selected and collected in more detail, thereby further reducing the amount of capture data to be transmitted from the wireless capture device to the data collection device.

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

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

[0013] In the data collection device, it is preferable that the control unit sets the transmission conditions including a frame type of the capture data.

[0014] This makes it possible to collect capture data that is selected using the frame type of the capture data.

[0015] In the data collection device, it is preferable that the control unit sets a period and sets different transmission conditions for each period order.

[0016] This allows capture data to be selected under different transmission conditions for each cycle order, making it possible to collect a variety of capture data.

[0017] In the data collection device, it is preferable that the control unit sets the transmission condition to change the channel of wireless communication used to receive the capture data to a different channel for each predetermined period in the cycle.

[0018] This allows capture data to be acquired using multiple channels within one period, enabling even more flexible response.

[0019] In the data collection device, it is preferable that the control unit collectively reads out all of the transmission conditions for a plurality of cycles, and transmits the transmission conditions to the wireless capture device using the communication unit.

[0020] This makes it possible to reduce the number of communications, compared to a method in which a transmission condition is set for each periodic order.

[0021] In the data collection device, it is preferable that the control unit transmits the transmission condition to the wireless capture device using the communication unit before permitting the wireless capture device to transmit the capture data.

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

[0023] According to a second aspect of the present invention, there is provided the following data collection method. That is, in the data collection method, a plurality of wireless capture devices collect capture data received by wireless communication. The data collection method includes a reading step, a setting step, and a collection step. In the reading step, transmission conditions that define conditions for the capture data to be received from the wireless capture device are read. In the setting step, the transmission conditions read in the reading step are transmitted to the wireless capture device, and the transmission conditions are set in the wireless capture device. In the collection step, the capture data transmitted from the wireless capture device and selected using the transmission conditions is received.

[0024] According to a third aspect of the present invention, there is provided a data collection program having the following configuration. That is, the data collection program is a program for collecting capture data received by a plurality of wireless capture devices via wireless communication, and the data collection program causes the data collection device to execute a reading step, a setting step, and a collection step. In the reading step, transmission conditions are read from the wireless capture device, the transmission conditions defining conditions for the capture data to be received by the data collection device. In the setting step, the transmission conditions read in the reading step are transmitted to the wireless capture device, and the transmission conditions are set in the wireless capture device. In the collection step, the capture data transmitted from the wireless capture device and selected using the transmission conditions is received.

[0025] According to a fourth aspect of the present invention, there is provided a data collection system having the following configuration. 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 via 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 devices. The storage unit stores the capture data received by the communication unit and transmission conditions that define conditions for the capture data received by the communication unit from the wireless capture devices. The control unit reads out the transmission conditions from the storage unit, and transmits the transmission conditions to the wireless capture devices using the communication unit, thereby setting the transmission conditions in the wireless capture devices. [Brief description of the drawings]

[0026] [Figure 1] 1 is a block diagram of a data collection system according to an embodiment of the present invention; [Diagram 2] FIG. 2 is an explanatory diagram showing an overview of the processing flow of the data collection system. [Diagram 3] Sequence diagram of the data collection system. [Figure 4] 11 is a flowchart showing a process performed by a wireless capture device after capture is started. [Diagram 5] 4 is a table showing the contents of transmission conditions stored in the data collection device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

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

[0028] The data collection system 1 is installed in, for example, a factory. The factory is provided with a plurality of industrial machines 30. The industrial machines 30 are, for example, robots or machine tools. The industrial machines 30 are equipped with built-in or external wireless communication devices and are capable of wireless communication. The industrial machines 30 transmit operation status, sensor detection results, and the like via wireless communication. In addition, the industrial machines 30 transmit data such as operation status or sensor detection results via wireless communication via an access point 40 in response to an instruction from an administrator of the data collection system 1 or a PC 50 of a user who uses the system. Hereinafter, the data collection system 1 in the embodiment of the present invention will be described taking as an example the collection of data wirelessly transmitted by the industrial machines 30.

[0029] The data collection system 1 is not limited to being used for collecting data from the industrial machines 30 in a factory, and may be installed in other facilities, such as an office or a warehouse. In this case, the data collection system 1 collects data wirelessly transmitted by various devices installed in the facility.

[0030] As shown in FIG. 1, the data collection system 1 includes a data collection device 10 and a plurality of wireless capture devices 20.

[0031] The data collection device 10 collects data received by the wireless capture device 20 from wireless communication performed between the industrial machine 30 and the PC 50. In other words, the data collection device 10 collects data captured by the wireless capture device 20 in wireless communication performed mainly between the industrial machine 30 and the PC 50. Capturing refers to collecting wireless data (wireless frames) present around the device itself (within a range in which radio waves can be received). The data collection device 10 is a computer such as a PC or a server. The data collection device 10 includes a control unit 11, a storage unit 12, and a communication unit 13.

[0032] The control unit 11 is a calculation device such as a CPU, and the storage unit 12 is a storage device such as an HDD, an SSD, or a flash memory. A data collection program is stored in the storage unit 12. The control unit 11 executes the data collection program to perform processing described below to collect data and store the collected data in the storage unit 12. In the following description, the communication unit 13 is a wired communication module including a connector, a communication board, and the like. The communication unit 13 performs wired communication with the wireless capture device. Note that the communication unit 13 may 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 includes a calculation device such as a CPU, a storage device such as an HDD, an SSD, or a flash memory, a wired communication module, and a wireless communication module. The wireless capture device 20 can execute various processes by the calculation device executing a program stored in the storage device. The wireless capture device 20 performs wired communication with the data collection device 10 using the wired communication module. The wireless capture device 20 performs wireless communication with the industrial machine 30 using the wireless communication module. The wireless capture device 20 also acquires wireless data (wireless frames) present around the device itself (within a range where radio waves can be received). In the embodiment of the present invention, an example will be described in which wireless data is acquired (captured) in wireless communication performed between the industrial machine 30 and a PC 50.

[0034] Next, with reference to Figures 2(a) to 2(c), an overview of a data collection method in which the data collection 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] When performing the same process as in Patent Document 1 described above, the wireless capture device 20 transmits all data received from the industrial machine 30 to the data collecting device 10. As a result, communication delays or communication errors may occur. In view of this, an object of the data collecting method of this embodiment is to reduce the amount of data in communication between the data collecting device 10 and the wireless capture device 20 (particularly the amount of data transmitted from the wireless capture device 20 to the data collecting device 10). Specifically, the wireless capture device 20 transmits only necessary data from the data received from the industrial machine 30 to the data collecting device 10.

[0036] 2(a), the data collecting device 10 transmits transmission conditions to the wireless capture device 20 in advance. The transmission conditions define conditions for data that the data collecting device 10 (communication unit 13) receives from the wireless capture device 20. The wireless capture device 20 transmits only data that satisfies the transmission conditions to the data collecting device 10. The transmission conditions will be described in detail later.

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

[0038] Thereafter, as shown in FIG. 2(c), the wireless capture device 20 transmits to the data collecting device 10 only the capture data that satisfies the transmission condition from among the received capture data (ie, only the necessary capture data).

[0039] This makes it possible to reduce the amount of communication data compared to the case where all the capture data is transmitted from the wireless capture device 20 to the data collection device 10. As a result, it is possible to make communication delays or communication errors less likely to occur.

[0040] Next, the details of the processes performed by the data collection device 10 and the wireless capture device 20 will be described with reference to Figures 3 to 5. In the following description, a first wireless capture device 20A and a second wireless capture device 20B will be given as examples of the wireless capture device 20.

[0041] The transmission conditions are stored in the storage unit 12 of the data collection device 10. The control unit 11 reads out the transmission conditions of the capture data received from the wireless capture devices from the storage unit 12 (reading process, reading step). After that, 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] Fig. 5 illustrates examples of transmission conditions stored in the data collection device 10 (specifically, the control unit 11). In the example shown in Fig. 5(a), the transmission conditions include a wireless capture device ID, a periodic order, a channel, and a frame type. In the example shown in Fig. 5(b), the transmission conditions include a wireless capture device ID, a periodic order, a period, a channel order, and a frame type. The difference between the transmission conditions in Fig. 5(a) and Fig. 5(b) is the period and the channel order.

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

[0044] The periodic order is a period for switching the transmission conditions. The time for one period is determined in advance, and each time the time for one period has elapsed, a transition is made to the next period (e.g., from the first period to the second period), and the transmission conditions are changed. Although three periods of transmission conditions are shown in FIG. 5, transmission conditions for two or less periods or four or more periods may be set. Also, it is not essential to change the transmission conditions for each periodic order.

[0045] The channel is a channel used for wireless communication by the wireless capture device 20. 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 a packet transmitted by the industrial machine 30 via the access point 40. The frame type is described in the header of the packet. In Fig. 5, a Beacon frame, a Management frame, and a data frame are shown as examples. Note that only either the channel or the frame type may be used as a transmission condition.

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

[0048] An example of the transmission condition shown in Fig. 5(b) is for the purpose of collecting data on the wireless environment around the first wireless capture device 20A, rather than collecting communication data between the industrial machine 30 and the PC 50. The period is a period for changing the channel of the wireless communication used for receiving the capture data to a different channel every predetermined period (each time the predetermined period elapses) within one cycle. As shown in Fig. 5(b), the period is, for example, 1 second.

[0049] The channel order is an order of changing the channel for changing the wireless communication channel used for receiving capture data to a different channel every predetermined period (each time the predetermined period elapses) within one cycle time. As shown in Fig. 5(b), for example, every time a predetermined period (for example, one second) elapses, the channel is changed in the order of 1ch, 3ch, and 5ch, and the wireless communication channel used by the wireless capture device 20 for reception is changed.

[0050] The transmission conditions are generated in advance and stored in the memory unit 12 of the data collection device 10 based on the channel used by the industrial machinery 30, the contents of the packets transmitted by the industrial machinery 30, the positional relationship between the industrial machinery 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 the wireless capture device IDs of their own devices transmitted from the data collection device 10. This completes the setting of the transmission conditions associated with the first wireless capture device 20A and the second wireless capture device 20B, respectively.

[0052] 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 capture data from the industrial machine 30 and transmit the capture data to the data collecting device 10. In other words, the capture start instruction can be rephrased as an instruction to the wireless capture device 20 to permit transmission of capture data to the data collecting device 10.

[0053] As a result, the first wireless capture device 20A and the second wireless capture device 20B start 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 capture data received from the industrial machine 30 satisfies the stored transmission condition (sequence number S4). The first wireless capture device 20A and the second wireless capture device 20B transmit only the capture data that satisfies the transmission condition to the data collecting device 10 (sequence number S5). As a result, the data collecting device 10 receives the desired capture data that meets the transmission condition (specifically, the capture data that is desired by the administrator of the data collecting system 1 or the user who uses the system) and stores it in the storage unit 12 (collection process, collection step). Note that the wireless capture device 20 receives the capture data that does not meet the transmission condition, but does not transmit it to the data collecting device 10. Thereafter, the first wireless capture device 20A and the second wireless capture device 20B change the transmission condition for each period order and continue capturing (sequence number S6). In this manner, in this embodiment, only the capture data that satisfies the transmission condition is transmitted from the wireless capture device 20 to the data collection device 10.

[0054] Next, the process from sequence number S3 to sequence number S6 of the wireless capture device 20 will be described in more detail with reference to the flowchart of FIG.

[0055] After starting to receive capture data, the wireless capture device 20 judges whether the periodic time has elapsed (S101). Until it is judged that the periodic time has elapsed, the wireless capture device 20 transmits capture data that satisfies the transmission condition of the current period to the data collecting device 10 (S102).

[0056] Next, the wireless capture device 20 judges whether capture has been completed under the transmission conditions of all periods (S103). In the example shown in Fig. 5, three periods are set, so it is judged whether capture under the transmission conditions of the third period is completed. If it is judged that capture has not been completed, the wireless capture device 20 switches to the transmission conditions of the next period (S104). For example, when the channel of the transmission condition is switched, the channel to be captured is changed in accordance with the change in the channel used in the wireless communication between the industrial machine 30 and the PC 50, and the process returns to step S101 to continue receiving the capture data.

[0057] If the wireless capture device 20 determines that capture has been completed under the transmission conditions for all periods, it sets the transmission conditions for the first period (first period) (S105). After that, the wireless capture device 20 returns to the process of step S101 and continues receiving the capture data.

[0058] By repeating the above process, the wireless capture device 20 repeats receiving the capture data from the industrial machine 30 and transmitting the capture data according to the transmission conditions to the data collecting device 10. When an instruction to stop capturing is received from the data collecting device 10, the wireless capture device 20 ends the process of the flowchart in FIG.

[0059] As described above, the data collection device 10 (data collection system 1) of this embodiment executes a data collection program to perform the following data collection method. That is, the data collection device 10 collects capture data received by a plurality of wireless capture devices 20 via wireless communication. The data collection device 10 includes a communication unit 13, a storage unit 12, and a control unit 11. The communication unit 13 receives the 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 conditions for the capture data received by the communication unit 13 from the wireless capture devices 20. The control unit 11 reads out the transmission conditions from the storage unit 12, and transmits the transmission conditions to the wireless capture devices 20 using the communication unit 13 to set the transmission conditions in the wireless capture devices 20.

[0060] As a result, the wireless capture device transmits the captured data to the data collection device 10 according to the transmission conditions, so it is possible to reduce the amount of capture data transmitted from the wireless capture device 20 to the data collection device 10. As a result, communication between the wireless capture device 20 and the data collection device 10 is less likely to be strained, making it possible to reduce the occurrence of communication delays or communication errors.

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

[0062] This allows only the necessary capture data to be selected and collected in more detail, thereby further reducing the amount of capture data transmitted from the wireless capture device 20 to the data collection device 10.

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

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

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

[0066] This makes it possible to collect capture data that is selected using the frame type of the capture data.

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

[0068] This allows capture data to be selected under different transmission conditions for each cycle order, making it possible to collect a variety of capture data.

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

[0070] This allows capture data to be acquired using multiple channels within one period, enabling even more flexible response.

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

[0072] This makes it possible to reduce the number of communications, compared to a method in which a transmission condition is set for each periodic order.

[0073] In the data collection device 10 of this embodiment, the control unit 11 transmits a transmission condition to the wireless capture device 20 using the communication unit 13 before allowing the wireless capture device 20 to transmit capture data.

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

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

[0076] The sequence diagram and the flow chart shown in the above embodiment are merely examples, and some processes may be omitted, some processes may be changed, or new processes may be added. For example, in the sequence diagram of FIG. 3, the data collection device 10 transmits a transmission condition and then transmits a capture start instruction. Alternatively, the transmission condition and the capture start instruction may be transmitted to the wireless capture device 20 at the same time. In addition, in the flow chart of FIG. 4, the wireless capture device 20 captures the transmission condition of the first period after capturing the transmission condition of the last period. Alternatively, the wireless capture device 20 may stop processing or capture another transmission condition newly received from the data collection device 10 after capturing the transmission condition of the last period. Also, the data collection device 10 may transmit the transmission condition to the wireless capture device 20 for each period.

[0077] In the above embodiment, the wireless capture device 20 receives all data transmitted by the industrial machine 30 with which it can communicate. However, a filter condition may be set and only capture data that matches the filter may be received from the industrial machine 30.

[0078] The transmission conditions given in the above embodiment are merely 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 collection system 10 Data Collection Equipment 11 Control section 12 Storage section 13. Communications Department 20 Wireless capture device 30 Industrial Machinery

Claims

1. A data collection device that collects capture data received by a plurality of wireless capture devices through wireless communication, a communication unit that communicates with the wireless capture device to receive the capture data; a storage unit that stores the capture data received by the communication unit and a transmission condition that defines a condition for the capture data to be received by the communication unit from the wireless capture device; a control unit that reads out 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; A data collection device comprising:

2. 2. The data collection device of claim 1, The data collection device, wherein the control unit sets different transmission conditions for each of the wireless capture devices.

3. 2. The data collection device of claim 1, The data collection device is characterized in that the control unit sets the transmission conditions including a wireless communication channel used by the wireless capture device to receive the capture data.

4. 2. The data collection device of claim 1, The data collection device, wherein the control unit sets the transmission conditions including a frame type of the capture data.

5. 2. The data collection device of claim 1, The data collection device, wherein the control unit sets a period and sets different transmission conditions for each period.

6. 6. The data collection device according to claim 5, The control unit sets the transmission condition to change a wireless communication channel used to receive the capture data to a different channel at each predetermined time period in the cycle.

7. 6. The data collection device according to claim 5, The control unit reads out all of the transmission conditions for a plurality of cycles at once, and transmits the transmission conditions to the wireless capture device using the communication unit.

8. 2. The data collection device of claim 1, The data collection device according to claim 1, wherein the control unit transmits the transmission condition to the wireless capture device using the communication unit before permitting the wireless capture device to transmit the capture data.

9. 1. A data collection method for collecting capture data received by a plurality of wireless capture devices through wireless communication, comprising: a reading step of reading a transmission condition that defines a condition of the capture data received from the wireless capture device; a setting step of 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 transmitted by the wireless capture device and selected using the transmission conditions; A data collection method comprising:

10. A data collection program for collecting capture data received by a plurality of wireless capture devices through wireless communication, The data collection device includes: a reading step of reading a transmission condition that defines a condition for the capture data to be received by the data collection device from the wireless capture device; a setting step of 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 transmitted by the wireless capture device and selected using the transmission conditions; A data collection program comprising:

11. A plurality of wireless capture devices; a data collection device that collects capture data received by a plurality of wireless capture devices through wireless communication; Equipped with The data collection device includes: a communication unit that communicates with the wireless capture device to receive the capture data; a storage unit that stores the capture data received by the communication unit and a transmission condition that defines a condition for the capture data to be received by the communication unit from the wireless capture device; a control unit that reads out 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; A data collection system comprising:

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