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

Abstract

To provide a data collection device that can efficiently transmit data. [Solution] The data acquisition device 5 includes a receiving unit 50 that receives signals output from the production device 3, a storage unit 52 that stores signal information related to the signals received by the receiving unit 50, a generation unit 54 that generates processed information by processing multiple signal information stored in the storage unit 52, and a transmission unit 56 that transmits signal information to the management device 7. When the transmission unit 56 fails to transmit signal information to the management device 7, the generation unit 54 generates processed information that aggregates multiple signal information stored in the storage unit 52, or processed information that uses some of the signal information among the multiple signal information, and the transmission unit 56 transmits the processed information generated by the generation unit 54.

Description

Technical Field

[0001] The present invention relates to a data collection device, a data collection method, and a data collection system.

Background Art

[0002] Patent Document 1 discloses an injection molding machine that includes an injection device for filling a mold apparatus clamped by a mold clamping device with a molding material, and an ejector device for taking out a molded product from the mold apparatus after the molding material filled by the injection device is cooled and solidified, wherein at least one of between internal devices and between the own device and an external device, a transmission side transmits the same data a plurality of times to a reception side. In the injection molding machine described in Patent Document 1, the transmission side transmits the same data a plurality of times to the reception side until a response related to data reception is received from the reception side.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the injection molding machine described above, if a communication problem occurs between the transmitter and receiver, preventing the transmission and reception of data (information), the transmitter will resend the same data to the receiver when data transmission and reception become possible again. In this configuration, when data transmission and reception resumes between the transmitter and receiver, all data stored on the transmitter is transmitted sequentially, which takes time. In this case, it takes time for the receiver to acquire the latest data, which can result in a loss of time. Furthermore, the receiver may not need all the unsent data stored on the transmitter when data transmission and reception resumes between the transmitter and receiver. In other words, if all unsent data is sent from the transmitter to the receiver, the transmitter may be sending unnecessary (wasteful) data to the receiver at the time data transmission and reception resumes.

[0005] Furthermore, in the above configuration, data is accumulated on the transmitting side until any communication problems between the transmitting and receiving sides are resolved. If it takes time to resolve the communication problems, the data stored on the transmitting side will strain the storage space, so the transmitting side will delete the data stored in the storage space starting with the oldest data. As a result, if it takes time for data transmission and reception to resume, some data (older data) may not be sent from the transmitting side to the receiving side. Moreover, if all unsent data is sent, it may put a load on the network connecting the transmitting and receiving sides. As described above, it is not efficient to send all the data that was accumulated on the transmitting side to the receiving side when data transmission and reception between the transmitting and receiving sides resumes.

[0006] One aspect of the present invention aims to provide a data collection device, a data collection method, and a data collection system that can efficiently transmit data. [Means for solving the problem]

[0007] (1) A data acquisition device according to one aspect of the present invention comprises a receiving unit that receives signals output from a production device, a storage unit that stores signal information relating to the signals received by the receiving unit, a generation unit that generates processed information by processing a plurality of signal information stored in the storage unit, and a transmission unit that transmits signal information to an external device. The generation unit generates processed information by aggregating the plurality of signal information stored in the storage unit, or processed information using some of the signal information among the plurality of signal information, when the transmission unit fails to transmit the signal information again after the transmission of signal information from the transmission unit has failed, and the transmission unit transmits the processed information generated by the generation unit.

[0008] In a data acquisition device according to one aspect of the present invention, when transmitting signal information again after a failure in transmission, the device transmits not all of the untransmitted signal information, but rather processed information that aggregates multiple signal pieces of information, or processed information that uses only some of the signal information. This allows the data acquisition device to shorten the transmission time compared to transmitting all of the untransmitted signal information stored in the memory unit. Furthermore, the processed information can be information required by the external device when transmission is resumed. Therefore, it is possible to avoid transmitting unnecessary (wasteful) information to the external device when data transmission and reception are resumed.

[0009] Furthermore, in a data acquisition device, after the generation unit generates processing information, the signal information related to the generation (signal information aggregated or used to generate the processing information) becomes unnecessary. Therefore, it is possible to delete this signal information. Consequently, the data acquisition device can avoid untransmitted signal information overwhelming the storage area of ​​the storage unit, thus preventing the deletion of signal information containing content that should be transmitted to external devices. Moreover, the data acquisition device can avoid placing a load on the network compared to transmitting all untransmitted signal information stored in the storage unit. For these reasons, the data acquisition device can transmit data efficiently.

[0010] (2) In the data acquisition device described in (1) above, the generation unit may generate processed information that aggregates the signal information that was not transmitted from the transmission unit to the external device due to a failure in transmitting the signal information, and the signal information stored in the storage unit between the time of the failure to transmit the signal information and the time of retransmission. In this configuration, the transmission unit can transmit to the external device processed information that aggregates the signal information that it failed to transmit and the signal information stored in the storage unit until transmission is resumed.

[0011] (3) In the data acquisition device described in (2) above, when the generation unit generates processing information, it may exclude the signal information aggregated to generate the processing information, or the signal information used to generate the processing information, from the generation of the next processing information. This configuration avoids the duplication of signal information in the generated information.

[0012] (4) In the data acquisition device described in (1) above, the generation unit may generate the latest signal information as processing information when the transmission unit retransmits the signal information. In this configuration, the data acquisition device can transmit data efficiently.

[0013] (5) In the data acquisition device described in (1) above, the generation unit may generate processed information obtained by accumulating multiple signal information at predetermined time intervals. In this configuration, the data acquisition device can efficiently transmit data.

[0014] (6) In the data acquisition device described in (1) above, the generation unit may generate processed information obtained by accumulating multiple signal information at predetermined intervals. In this configuration, the data acquisition device can transmit data efficiently.

[0015] (7) In any one of the data acquisition devices described in (1) to (6) above, the storage unit may delete the signal information aggregated to generate the processing information, or the signal information used to generate the processing information, when the generation unit has generated the processing information. This configuration avoids the signal information from overwhelming the storage area of ​​the storage unit, thus preventing the deletion of signal information containing content that should be transmitted to an external device.

[0016] (8) In any one of the data acquisition devices described in (1) to (7) above, the signal output from the production device may be at least one of a signal indicating the number of times the production device has been operated and a signal indicating the color of an indicator light provided on the production device. In this configuration, the data acquisition device can collect information indicating the operating status of the production device and transmit it to an external device.

[0017] (9) A data acquisition method according to one aspect of the present invention includes a receiving step of receiving a signal output from a production device, a storage step of storing signal information relating to the signal received in the receiving step, a generation step of generating processed information by processing a plurality of signal information stored in the storage step, and a transmission step of transmitting signal information to an external device, wherein in the generation step, if the transmission of signal information to the external device fails in the transmission step, and the signal information is transmitted again in the transmission step, processed information is generated by aggregating the plurality of signal information stored in the storage step, or processed information using some of the signal information among the plurality of signal information, and in the transmission step, the processed information generated in the generation step is transmitted.

[0018] In a data acquisition method according to one aspect of the present invention, when signal information is to be transmitted again after a failure in transmission, instead of transmitting all the untransmitted signal information, processed information that aggregates multiple signal information, or processed information that uses some of the signal information, is transmitted. As a result, the data acquisition method can shorten the transmission time compared to transmitting all the untransmitted signal information that was stored in the storage step. Furthermore, the processed information can be information that an external device needs when transmission is resumed. Therefore, it is possible to avoid transmitting unnecessary (wasteful) information to an external device when data transmission and reception are resumed.

[0019] Furthermore, in the data acquisition method, after generating processing information in the generation step, the signal information related to the generation (signal information aggregated or used to generate the processing information) becomes unnecessary. Therefore, it becomes possible to delete this signal information. Consequently, the data acquisition method avoids the accumulation of untransmitted signal information in the storage area, thus preventing the deletion of signal information containing content that should be transmitted to external devices. Moreover, the data acquisition method avoids placing a load on the network compared to transmitting all the untransmitted signal information accumulated in the storage step. For these reasons, the data acquisition method allows for efficient data transmission.

[0020] (10) A data collection system according to one aspect of the present invention is a data collection system comprising: a data collection device that collects signals output from a production apparatus; and an external device that manages information collected by the data collection device, wherein the data collection device includes: a receiving unit that receives signals output from the production apparatus; a storage unit that stores signal information related to the signals received by the receiving unit; a generation unit that generates processed information obtained by processing a plurality of pieces of signal information stored in the storage unit; and a transmission unit that transmits the signal information to the external device. After the transmission of the signal information from the transmission unit to the external device fails, when the transmission unit retransmits the signal information, the generation unit generates processed information obtained by aggregating the plurality of pieces of signal information stored in the storage unit, or processed information using part of the plurality of pieces of signal information, and the transmission unit transmits the processed information generated by the generation unit.

[0021] A data collection system according to one aspect of the present invention is provided with the above data collection device. Accordingly, the data collection system can transmit data efficiently. [Effects of the Invention]

[0022] According to one aspect of the present invention, data can be transmitted efficiently. [Brief Description of the Drawings]

[0023] [Figure 1] Figure 1 is a diagram showing the configuration of a management system. [Figure 2] Figure 2 is a diagram showing the configuration of a data collection device. [Figure 3] Figure 3 is a diagram showing the configuration of a management apparatus. [Figure 4] Figure 4 is a flowchart showing a data collection method. [Modes for Carrying Out the Invention]

[0024] Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings. In the description of the drawings, the same or equivalent elements will be denoted by the same reference numerals, and redundant descriptions will be omitted.

[0025] Figure 1 is a diagram showing the configuration of the management system. As shown in Figure 1, the management system (data collection system) 1 comprises a production device 3, a data collection device 5, a management device (external device) 7, and a cloud server 9. The management system 1 is a system that collects and manages data from the production device 3 to be managed, and comprehensively displays the operating status, operational status, operating environment, etc., of the production device 3. In this embodiment, the management system 1 manages multiple production devices 3.

[0026] Each of the multiple production devices 3 may be, for example, a machine tool, a processing machine (molding machine), etc. The production devices 3 can communicate with the data acquisition device 5. The production devices 3 communicate with the data acquisition device 5 using, for example, a communication interface (serial communication line, connector) such as RS232 or RS485.

[0027] Production device 3 outputs signals. These signals may be shot signals, high-speed shot signals, status signals, etc. A shot signal or high-speed shot signal may, for example, be a signal relating to the number of operations of a molding machine, which is a processing machine. A status signal may indicate the status (operating, stopped, error occurring) of an indicator light (e.g., Patlite®) of production device 3. A status signal may also be a signal relating to the operation of a component (such as a drive component) of production device 3. The signals may also be signals output from the PLC (Programmable Logic Controller) of production device 3. Production device 3 outputs one or more types (channels) of data (signals) to the data acquisition device 5. Production device 3 stores a log (signal log) relating to the signals in a memory area.

[0028] The data acquisition device 5 collects data output from the production device 3. In this embodiment, one data acquisition device 5 is provided for each production device 3. That is, in this embodiment, the management system 1 is equipped with as many data acquisition devices 5 as there are production devices 3. The data acquisition device 5 consists of a CPU (Central Processing Unit), ROM (Read Only Memory), RAM (Random Access Memory), etc. Each of the multiple data acquisition devices 5 has the same configuration. Below, the configuration of one data acquisition device 5 will be described as an example.

[0029] The data acquisition device 5 can communicate with both the production device 3 and the management device 7. The data acquisition device 5 communicates with both the production device 3 and the management device 7, for example, via a LAN (Local Area Network) that communicates based on private IP addresses (local IP addresses). The data acquisition device 5 and the management device 7 communicate, for example, using the MQTT (Message Queue Telemetry Transport) protocol.

[0030] Figure 2 shows the configuration of the data acquisition device 5. As shown in Figure 2, the data acquisition device 5 includes a receiving unit 50, a storage unit 52, a generation unit 54, and a transmission unit 56.

[0031] The receiving unit 50 receives data transmitted from the production device 3. The receiving unit 50 outputs the received data to the storage unit 52. The receiving unit 50 receives generation instruction information transmitted from the management device 7. The receiving unit 50 outputs the received generation instruction information to the generation unit 54.

[0032] The receiving unit 50 receives request information (signals) transmitted from the management device 7. The receiving unit 50 outputs the received request information to the transmitting unit 56. The receiving unit 50 receives response information transmitted from the management device 7 in response to the transmitting unit 56 transmitting data to the management device 7. The receiving unit 50 outputs the received response information to the generating unit 54.

[0033] The storage unit 52 stores various types of data. The storage unit 52 stores (saves) data output from the receiving unit 50. The storage unit 52 stores data as signal information. The storage unit 52 stores signal information for each production device 3. The signal information may include information that can identify the production device 3, and information indicating the date and time when a signal was output from the production device 3. The storage unit 52 has a first storage area for storing signal information, and when the number of signal information entries in the first storage area exceeds a certain amount, it deletes the oldest signal information transmitted from the transmitting unit 56. The storage unit 52 has a second storage area for storing signal information, and untransmitted signal information is stored in the second storage area. When processing information is generated by the generation unit 54, the storage unit 52 deletes the aggregated signal information used to generate the processing information, or the signal information used to generate the processing information.

[0034] The generation unit 54 generates processing information that aggregates multiple signal information stored in the storage unit 52, or processing information that uses some of the signal information among multiple signal information, when the transmission unit 56 fails to transmit signal information to the management device 7 after the transmission of signal information from the transmission unit 56 fails to transmit the signal information again. The generation unit 54 generates processing information based on multiple signal information stored in the storage unit 52 when a problem occurs in the transmission and reception of data between the data acquisition device 5 and the management device 7, and the transmission of signal information from the transmission unit 56 to the management device 7 fails.

[0035] A malfunction in data transmission and reception may occur when communication is not possible between the data acquisition device 5 and the management device 7 (when communication is temporarily interrupted), or when the communication speed between the data acquisition device 5 and the management device 7 is reduced. The generation unit 54 determines whether or not a malfunction has occurred in data transmission and reception between the data acquisition device 5 and the management device 7 based on the response information transmitted from the management device 7. The generation unit 54 determines that a malfunction has occurred in data transmission and reception between the data acquisition device 5 and the management device 7 if the receiving unit 50 does not output response information for a predetermined time or longer, that is, if the receiving unit 50 does not receive response information from the management device 7 for a predetermined time or longer. The predetermined time is an arbitrarily set time and is set to be longer than the interval at which the management device 7 transmits response information (for example, 1 second).

[0036] The generation unit 54 generates processing information based on generation instruction information when it determines that there is a problem in the transmission and reception of data between the data acquisition device 5 and the management device 7. The generation instruction information indicates the content (conditions) of the processing information to be generated by the generation unit 54. The generation instruction information is transmitted from the management device 7 and indicates the data format (data format) required by the management device 7. The generation unit 54 generates processing information based on the generation instruction information transmitted from the management device 7.

[0037] The generation instruction information is, for example, information that instructs the generation of processing information that combines (aggregates) signal information that could not be transmitted to the management device 7 (transmission failed) and signal information output from the production device 3 from the time transmission to the management device 7 stopped until transmission resumes. The generation instruction information is, for example, information that instructs the generation of processing information that includes the latest signal information but does not include the signal information that could not be transmitted to the management device 7. For example, if the signal information is a status signal, it is the signal indicating the latest status. The generation instruction information is, for example, information that instructs the generation of cumulative processing information for the signal information at predetermined unit time intervals (for example, every minute). For example, if the signal information is shot signal information, the processing information is information that totals 100 shots per minute. The generation instruction information is information that instructs the generation of processing information that aggregates the signal information at predetermined intervals (for example, every 100). The generation instruction information transmitted from the management device 7 is stored in the storage unit 52.

[0038] If the generation unit 54 generates processing information that combines the signal information that was not transmitted from the transmission unit 56 to the management device 7 due to a failure in transmitting the signal information, and the signal information output from the production device 3 from the time when transmission to the management device 7 stopped until when transmission resumes, the generation unit 54 ensures that the signal information aggregated for generating the processing information is not included in the generation of the next processing information. The generation unit 54 outputs the generated generation instruction information to the transmission unit 56. Once the generation unit 54 has generated the generated information, it deletes the signal information related to the generated processing information from the storage unit 52. The generation unit 54 outputs the generated data to the transmission unit 56.

[0039] The transmitting unit 56 transmits data to the management device 7. When the transmitting unit 56 receives request information output from the receiving unit 50, it transmits signal information related to the signal output from the production device 3 to the management device 7. In other words, if there is no problem with communication between the data acquisition device 5 and the management device 7 (i.e., stable communication is taking place at a predetermined speed), the transmitting unit 56 transmits signal information of the signal output from the production device 3 to the management device 7. When processing information is output from the generation unit 54, the transmitting unit 56 transmits the processing information to the management device 7.

[0040] The control device 7 consists of a CPU, ROM, RAM, etc. The control device 7 can communicate with each of the multiple data acquisition devices 5. The control device 7 communicates with each of the multiple data acquisition devices 5, for example, via a LAN. The control device 7 manages the information transmitted from each of the multiple data acquisition devices 5. The control device 7 monitors the operating status (operating condition) of each of the multiple production devices 3.

[0041] Figure 3 shows the configuration of the management device 7. As shown in Figure 3, the management device 7 comprises a receiving unit 70, a storage unit 72, a control unit 74, and a transmitting unit 76.

[0042] The receiving unit 70 receives data (signal information, processing information) transmitted from each of the multiple data acquisition devices 5. The receiving unit 70 outputs the received information to the storage unit 72.

[0043] The memory unit 72 stores various types of data. The memory unit 72 stores (saves) the data output from the receiving unit 70. Data is stored in the memory unit 72 for each production device 3.

[0044] The control unit 74 controls the operation of the management device 7. The control unit 74 causes the transmission unit 76 to send generation instruction information to the data acquisition device 5. The generation instruction information is set by the user. The control unit 74 causes the transmission unit 76 to send request information. The control unit 74 causes the transmission unit 76 to send request information to the data acquisition device 5 at predetermined time intervals. The predetermined time interval may be, for example, 1 second. In response to the receiving unit 70 receiving data from the data acquisition device 5, the control unit 74 causes the transmission unit 76 to send response information to the data acquisition device 5.

[0045] The transmitting unit 76 sends request information to each of the multiple data acquisition devices 5. The transmitting unit 76 also sends response information to the data acquisition devices 5.

[0046] The cloud server 9 provides applications that users access via terminal devices 11. Data is stored synchronously between the management device 7 and the cloud server 9.

[0047] The terminal device 11 may be a desktop computer, laptop computer, smartphone, tablet terminal, etc. The terminal device 11 is equipped with a display unit 11A. The display unit 11A displays information related to the operating status of the production equipment 3. The display unit 11A is, for example, a display. When the terminal device 11 receives a command from the user to display the operating status of the production equipment 3, the display unit 11A displays a screen showing the operating status, etc.

[0048] Next, we will explain the data collection method in the data collection device 5 of the management system 1. Figure 4 is a flowchart showing the data collection method.

[0049] As shown in Figure 4, in the data acquisition device 5, the receiving unit 50 receives data transmitted from the production device 3 (step S01, receiving step). Subsequently, the storage unit 52 stores the data received by the receiving unit 50 (step S02, storage step).

[0050] Next, the generation unit 54 determines whether the transmission of signal information from the transmission unit 56 to the management device 7 has failed (step S03). If the generation unit 54 determines that the transmission of signal information from the transmission unit 56 to the management device 7 has failed (step S03: YES), the process proceeds to step S04. If the generation unit 54 does not determine that the transmission of signal information from the transmission unit 56 to the management device 7 has failed (step S03: NO), the process proceeds to step S05.

[0051] In step S04, the generation unit 54 generates processing information (generation step). In step S05, the transmission unit 56 transmits data (signal information, processing information) to the management device 7 (transmission step).

[0052] As explained above, in the data acquisition device 5 of the management system 1 according to this embodiment, when the transmission unit 56 fails to transmit signal information to the management device 7, the generation unit 54 generates processing information that aggregates multiple signal information stored in the storage unit 52, or processing information that uses some of the signal information among the multiple signal information, when the transmission unit 56 transmits the signal information again. The transmission unit 56 then transmits the processing information generated by the generation unit 54. In this way, when the data acquisition device 5 transmits signal information again after a failure to transmit signal information, it transmits processing information that aggregates multiple signal information, or processing information that uses some of the signal information, rather than all of the signal information that could not be transmitted. As a result, the data acquisition device 5 can shorten the time required for transmission compared to when all of the untransmitted signal information stored in the storage unit 52 is transmitted. Furthermore, the processing information can be the information that the management device 7 needs when transmission is resumed. Therefore, at the time when data transmission and reception are resumed, information that is unnecessary (wasteful) to the management device 7 is not transmitted.

[0053] Furthermore, in the data acquisition device 5, after the generation unit 54 generates processing information, the signal information related to the generation (signal information aggregated or used to generate the processing information) becomes unnecessary. Therefore, it becomes possible to delete such signal information. Consequently, the data acquisition device 5 can avoid untransmitted signal information overwhelming the storage area of ​​the storage unit 52, and thus avoid the deletion of signal information containing content that should be transmitted to the management device 7. Moreover, the data acquisition device 5 can avoid placing a load on the network compared to transmitting all untransmitted signal information stored in the storage unit 52. For these reasons, the data acquisition device 5 can transmit data efficiently.

[0054] While embodiments of the present invention have been described above, the present invention is not necessarily limited to the embodiments described above, and various modifications are possible without departing from the spirit of the invention.

[0055] In the above embodiment, one example described was a configuration in which generation instruction information is transmitted from the management device 7 to the data acquisition device 5, and the data acquisition device 5 generates data based on the generation instruction information. However, the generation instruction information may also be set directly in the data acquisition device 5.

[0056] In the above embodiment, a configuration in which the production device 3 and the data acquisition device 5 are connected in a one-to-one correspondence was described as an example. However, multiple production devices 3 may be connected to the data acquisition device 5.

[0057] In the above embodiment, a configuration in which the data acquisition device 5 comprises a receiving unit 50, a generating unit 54, and a transmitting unit 56 was described as an example. In the data acquisition device 5, the receiving unit 50, the generating unit 54, and the transmitting unit 56 may be a single element. [Explanation of Symbols]

[0058] 1...Management system (data acquisition system), 3...Production equipment, 5...Data acquisition equipment, 7...Management equipment (external equipment), 50...Receiver, 52...Storage unit, 54...Generator, 56...Transmitter.

Claims

1. A receiving unit that receives signals output from the production equipment, A storage unit that stores signal information relating to the signal received by the receiving unit, A generation unit that generates processed information obtained by processing a plurality of signal information stored in the storage unit, It comprises a transmitting unit that transmits the signal information to an external device, The generation unit generates processing information by aggregating the multiple signal information stored in the storage unit, or processing information using some of the multiple signal information, when the transmission unit attempts to transmit the signal information again after the transmission unit has failed to transmit the signal information from the transmission unit. The transmitting unit is a data acquisition device that transmits the processing information generated by the generating unit.

2. The data acquisition device according to claim 1, wherein the generation unit generates processing information by aggregating the signal information that was not transmitted from the transmission unit to the external device due to a failure to transmit the signal information, and the signal information stored in the storage unit between the time of the failure to transmit the signal information and the time of retransmission.

3. The data acquisition device according to claim 2, wherein when the generation unit generates the processing information, the signal information aggregated to generate the processing information, or the signal information used to generate the processing information, is not included in the generation of the next processing information.

4. The data acquisition device according to claim 1, wherein the generation unit generates the latest signal information as processing information when the transmission unit retransmits the signal information.

5. The data acquisition device according to claim 1, wherein the generation unit generates the processing information obtained by accumulating a plurality of the signal information at predetermined time intervals.

6. The data acquisition device according to claim 1, wherein the generation unit generates the processing information obtained by accumulating a predetermined number of the signal information items.

7. The data acquisition device according to claim 1 or 2, wherein the storage unit deletes the signal information aggregated to generate the processing information, or the signal information used to generate the processing information, when the processing information is generated by the generation unit.

8. The data acquisition device according to claim 1 or 2, wherein the signal output from the production device is at least one of a signal indicating the number of operations of the production device and a signal indicating the color of an indicator light provided on the production device.

9. A receiving step that receives a signal output from the production equipment, A storage step for storing signal information relating to the signal received in the reception step, A generation step that generates processed information obtained by processing the plurality of signal information stored in the storage step, The transmission step includes transmitting the signal information to an external device, In the generation step, if the transmission of the signal information to the external device fails in the transmission step, and the signal information is to be transmitted again in the transmission step, the processing information is generated by aggregating the multiple signal information stored in the storage step, or by using some of the signal information among the multiple signal information. A data collection method comprising transmitting the processing information generated in the generation step during the transmission step.

10. A data acquisition device that collects signals output from production equipment, A data acquisition system comprising an external device for managing information collected by the data acquisition device, The data acquisition device is A receiving unit that receives the signal output from the production apparatus, A storage unit that stores signal information relating to the signal received by the receiving unit, A generation unit that generates processed information obtained by processing a plurality of signal information stored in the storage unit, The system includes a transmitting unit that transmits the signal information to the external device, The generation unit generates processing information by aggregating the multiple signal information stored in the storage unit, or processing information using some of the multiple signal information, when the transmission unit attempts to transmit the signal information again after the transmission unit has failed to transmit the signal information from the transmission unit. The transmission unit is a data collection system that transmits the processing information generated by the generation unit.

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