JP5089716B2 - Data collection device, air conditioning device, data collection system, data collection method and program - Google Patents

Description

  The present invention relates to a data collection device, an air conditioning device, a data collection system, a data collection method, and a program for collecting data suitable for service work such as an abnormality cause analysis and operation check of the air conditioning device.

  A data collection device that collects operation data of the air conditioner is indispensable for service work such as analysis of the cause of abnormality of the air conditioner and operation check. If data is collected by the data collection device, it is possible to analyze the data collected when an abnormality such as a failure occurs, to elucidate the cause of the abnormality, and to take measures such as repair.

  As an example of such a data collection device, a portable trial operation data collection system has been proposed (see, for example, Patent Document 1). In this collection system, during the trial operation of the air conditioner, the trial operation data exchanged inside the air conditioner is collected, and the collected trial operation data is analyzed. Thereby, the presence or absence of the malfunction of an air conditioning apparatus can be confirmed.

  In addition, time information is added to the operation data of the air conditioner and recorded in the volatile memory for a set time, and when an abnormal signal indicating an abnormal operation of the air conditioner is detected, the operation recorded in the volatile memory is recorded. A data collection device that transfers data and stores it in a non-volatile memory is disclosed (for example, see Patent Document 2). Thereby, the capacity of the memory for storing the collected data can be reduced, and the operation data necessary for elucidating the cause of the operation abnormality can be reliably collected.

JP 2002-061929 A JP 2008-144973 A

  The collection system described in Patent Document 1 is assumed to be used during trial operation. In order to elucidate the cause of the abnormal operation, etc., trial operation data corresponding to the process until the occurrence of the abnormality is required, so this collection system continuously collects the trial operation data regardless of whether there is an abnormality. When performing service work such as elucidating the cause of anomalies, the operator uses this collection system to search for the commissioning data to be analyzed from the collected commissioning data and analyze the retrieved commissioning data. To do.

  In this collection system, a huge amount of test operation data is collected. However, abnormalities such as failures rarely occur (for example, once every few years), and the trial run data necessary for analyzing the abnormalities is a small part of the collected data. For this reason, it is extremely difficult to quickly search for trial operation data to be analyzed from a huge amount of trial operation data. In other words, this collection system does not consider the efficiency of data retrieval.

  On the other hand, in the data collection device described in Patent Document 2, the timing for collecting data is determined on the basis of an abnormality signal indicating an operation abnormality output from the air conditioning apparatus. It is assumed that the air conditioner has a function of transmitting a signal. Further, if the air conditioner cannot detect an abnormality even if there is an operation abnormality, an abnormal signal is not output from the air conditioner, making it difficult to collect data necessary for analysis.

  Further, the data collection device described in Patent Document 2 can analyze the abnormality of the power supply voltage. However, in this data collection device, it is not assumed that the cause of the communication abnormality of the control communication network constructed in the air conditioner is analyzed.

  The present invention has been made in view of the above circumstances, and more reliable and useful data not only for the operation of the air conditioner but also for service work related to communication of the control communication network constructed in the air conditioner. An object of the present invention is to provide a data collection device, an air conditioner, a data collection system, a data collection method, and a program that can be efficiently collected.

In order to achieve the above object, in the data collection device according to the present invention, the message collection means collects a message related to a communication packet transmitted through a transmission path connecting each of a plurality of devices constituting the air conditioner, By analyzing a message collected according to a predetermined message analysis rule, message information including a message and a message analysis result is generated. The waveform collecting means collects a signal waveform related to the communication packet and analyzes the signal waveform collected according to a predetermined waveform analysis rule, thereby generating waveform information including the signal waveform and the analysis result of the signal waveform. . The storage means stores message information and waveform information. The input means inputs a data gazing condition that is a condition of the communication packet to be gazed. The condition determining means determines whether at least one of the message information and the waveform information satisfies the data gazing condition. The synchronization means associates the message information with the waveform information based on a predetermined synchronization condition. The output means outputs the telegram information and the waveform information associated with the data gazing condition. The data organizing means deletes the message information and the waveform information satisfying a predetermined data organizing condition from the storage means.

  According to this invention, the message collection means and the waveform collection means collect a message and a signal waveform relating to a communication packet transmitted through a transmission path connecting each of a plurality of devices constituting the air conditioner, and a message analysis rule and Analysis is performed according to the waveform analysis rule, and telegram information and waveform information including a telegram, a signal waveform, and a result of the analysis are generated. The condition determination means outputs the message information and waveform information to the outside if the generated message information and waveform information satisfy a data gazing condition that is a condition of a communication packet to be watched. Thereby, not only the operation of the air conditioner, but also data suitable for service work related to the communication of the control communication network built in the air conditioner can be collected more reliably and efficiently.

It is a schematic diagram which shows the structure of the air conditioning apparatus which concerns on Embodiment 1 of this invention. It is a block diagram which shows the structure of the data collection device which concerns on Embodiment 1 of this invention. FIG. 3A is a diagram illustrating a data structure of message information, and FIG. 3B is a diagram illustrating a data structure of waveform information. It is a table which shows an example of a waveform analysis result. It is a flowchart which shows the detail of the condition setting process in the data collection device of FIG. It is a flowchart which shows the detail of the message | telegram collection process in the data collection device of FIG. It is a flowchart which shows the detail of the waveform collection process in the data collection device of FIG. It is a flowchart which shows the detail of the message | telegram and waveform determination process in the data collection device of FIG. It is a flowchart which shows the detail of the data observation process in the data collection device of FIG. It is a block diagram which shows the structure of the data collection device which concerns on Embodiment 2 of this invention. It is a flowchart which shows the detail of the message | telegram and waveform determination process in the data collection device of FIG.

  Embodiments of the present invention will be described in detail with reference to the drawings.

Embodiment 1 FIG.
First, a first embodiment of the present invention will be described. The air conditioner according to Embodiment 1 is installed to control the air conditioning of a room such as a building, for example.

  FIG. 1 shows an overall configuration of an air conditioner 100 according to this embodiment. As shown in FIG. 1, the air conditioning apparatus 100 includes an outdoor unit 1, three indoor units 2, and two controllers 3.

  The outdoor unit 1, the indoor unit 2, and the controller 3 are connected to each other via a transmission path 4 of a control communication network built in the air conditioner 100. The outdoor unit 1, the indoor unit 2, and the controller 3 can perform data communication by transmitting and receiving communication packets via the transmission path 4.

  Hereinafter, the outdoor unit 1, the indoor unit 2, and the controller 3 connected to the transmission path 4 are simply referred to as “apparatus” as appropriate. A unique address is set for each of the outdoor unit 1, the indoor unit 2, and the controller 3. The communication packet includes its own address (source address) and destination address. These addresses enable communication between devices via the transmission path 4.

  A communication packet transmitted through the transmission path 4 is processed by each device according to a predetermined communication protocol. Each device handles a communication packet as an electrical signal at the physical layer level, and handles it as a telegram (bit string data) at a level higher than the logical layer.

  For example, the data collection device 10 is connected to the transmission path 4 of the air conditioner 100. The data collection device 10 is a computer including a CPU, a memory (all not shown), and the like, and various functions are realized by the CPU executing a program stored in the memory.

  The data collection device 10 is configured to be easily attached to and detached from the transmission line 4 and can be retrofitted to the air conditioning device 100. The data collection device 10 is provided with a communication interface (not shown) capable of intercepting communication packets transmitted through the transmission path 4. The data collection device 10 may be connected to the transmission line 4 like a sniffer, or may itself have a unique address on the transmission line 4.

  FIG. 2 shows the configuration of the data collection device 10 according to Embodiment 1 of the present invention. As shown in FIG. 2, the data collection device 10 includes a message collection unit 11, a waveform collection unit 12, a timing unit 13, a storage unit 14, a condition determination unit 15, a synchronization unit 16, a communication unit 17, and a condition input unit 18. .

  The message collection unit 11 holds a message analysis rule 111. The message analysis rule 111 is a rule for analyzing a message. The message analysis rule 111 is defined according to the communication protocol of the logical layer of the communication packet transmitted through the transmission path 4.

  In the message analysis rule 111, for example, an upper limit value and a lower limit value of the byte length of the message, what information indicates a value existing at which position of the message, a communication error occurrence condition, and the like are defined. Examples of communication errors include a length error and a checksum error.

  A length error is an error that occurs when the actual byte string length of the message data 22 does not match the length value embedded in the communication packet as the byte string length when it is transmitted from the transmission source. It is. In order to determine this error, the message analysis rule 111 describes the position where the length value exists in the message data 22. By referring to the message analysis rule 111, the length value can be extracted from the message data 22.

  The checksum error is an error that occurs when the total sum of the actual byte values of the message data 22 does not match the checksum code embedded in the communication packet as the sum of the byte values when transmitted from the transmission source. is there. In order to determine this error, the message analysis rule 111 describes the position where the checksum code exists. By referring to the message analysis rule 111, the checksum code can be extracted from the message data 22.

  The message collection means 11 collects messages related to communication packets transmitted through the transmission path 4 connecting each of a plurality of devices constituting the air conditioning apparatus 100, and analyzes them according to the message analysis rules 111. Is generated.

  FIG. 3A shows the data structure of the message information 20 according to the first embodiment. As shown in FIG. 3A, the message information 20 includes message information ID 21, message data 22, message collection time 23, message analysis result 24, waveform information ID 31, and flag data 40.

  The message information ID 21 is identification information of the message information 20. The message information 20 can be identified from the other message information 20 by the message information ID 21.

  The message data 22 is a message (bit string data) itself relating to a communication packet. The message collection time 23 is the time when the message was collected.

  The message analysis result 24 is information relating to the analysis result of the message data 22 according to the message analysis rule 111. The message analysis result 24 includes, for example, a predetermined value indicating a transmission source address, a transmission destination address, presence or absence of a communication error defined by a communication protocol, various temperature data used for controlling the air conditioner 100, pressure data, and the like. And character strings are stored.

  The waveform information ID 31 is identification information of the waveform information 30 corresponding to the message information 20. The flag data 40 is set when the data gaze condition 151 is satisfied.

  Returning to FIG. 2, the waveform collection means 12 holds a waveform analysis rule 121. The waveform analysis rule 121 is a rule for analyzing a waveform. The waveform analysis rule 121 is defined according to the communication protocol of the physical layer of the communication packet transmitted through the transmission path 4. In the waveform analysis rule 121, for example, an arithmetic expression for calculating a parameter characterizing the signal waveform is defined. Examples of such parameters include the voltage level of the waveform, the noise level of the waveform, the drop width of the voltage in the loop (which is a voltage drop that occurs instantaneously), and the ringing (voltage oscillation at the rising edge of the waveform pulse). And the amplitude of vibration.

  The waveform collection unit 12 collects a signal waveform related to a communication packet transmitted through the transmission path 4 and analyzes the collected signal waveform according to the waveform analysis rule 121 to generate the waveform information 30.

  FIG. 3B shows the data structure of the waveform information 30 according to the first embodiment. As shown in FIG. 3B, the waveform information 30 includes a waveform information ID 31, waveform data 32, a waveform collection time 33, a waveform analysis result 34, and flag data 40.

  The waveform information ID 31 is identification information of the waveform information 30. The identification information of the waveform information 30 is specified by the waveform information ID31.

  The waveform data 32 is a signal waveform itself obtained by sampling. The waveform collection time 33 is the time when the signal waveform is collected.

  The waveform analysis result 34 is a parameter value calculated by an arithmetic expression defined in the waveform analysis rule 121. FIG. 4 shows an example of the waveform analysis result 34. As shown in FIG. 4, the value of parameter Drop is disorder degree 0.8, the value of parameter Ringing is disorder degree 1.33, and the signal level is 1.05. . These numbers are only examples.

  The flag data 40 is set when the data gaze condition 151 is satisfied as described above.

  Returning to FIG. 2, the time measuring means 13 measures time. The time measured by the time measuring means 13 is used to acquire the message collection time 23 of the message information 20 and the waveform collection time 33 of the waveform information 30.

  The storage unit 14 stores the message information 20 generated by the message collection unit 11 and the waveform information 30 generated by the waveform collection unit 12.

  The condition determination unit 15 holds a data gazing condition 151. The data gazing condition 151 defines a condition for determining whether or not the communication packet includes data to be analyzed. The condition determination unit 15 determines whether the message information 20 and the waveform information 30 satisfy the data gazing condition 151.

  The synchronization unit 16 holds a synchronization condition 161. The synchronization condition 161 is a correspondence condition for determining whether or not the message information 20 and the waveform information 30 are related to the same communication packet. For example, whether the message collection time 23 and the waveform collection time 33 are substantially the same can be set as the synchronization condition 161. The synchronization unit 16 associates the message information 20 with the waveform information 30 based on the synchronization condition 161.

  The communication means 17 transmits the message information 20 and the waveform information 30 corresponding to the data gazing condition 151 to the outside.

  The condition input means 18 includes an input unit (not shown) for inputting information related to external conditions. The input unit can be, for example, a switch provided on the outer surface of the housing of the data collection device 10 or a communication interface connected to a communication network. When the input unit is a switch, an on / off signal corresponding to the on / off operation of the switch is output from the input unit. On the other hand, when the input unit is a communication interface, a communication command transmitted via the communication interface according to a predetermined communication protocol is received and output as input contents.

  The condition input means 18 holds a condition generation table 181. The condition generation table 181 is a table that associates the input content input to the input unit with the data gazing condition 151.

  As described above, the condition defined as the data gazing condition 151 can be changed. Thus, the data collection device 10 according to this embodiment can be changed according to the model of the air conditioner 100, for example.

  Next, the operation of the data collection device 10 will be described. The processes performed by the data collection device 10 are roughly divided into the following five processes, that is, a condition setting process S1, a message collection process S2, a waveform collection process S3, a message / waveform determination process S4, and a data observation process S5.

  In the condition setting process S1, the condition input unit 18 sets the data gazing condition 151 of the condition determination unit 15 in accordance with the input content input.

  In the message collection process S <b> 2, the message collection unit 11 collects messages transmitted through the transmission path 4, analyzes the messages according to the message analysis rules 111, and generates message information 20.

  In the waveform collection process S 3, the waveform collection unit 13 collects signal waveforms transmitted through the transmission path 4, analyzes the data, and generates waveform information 30.

  In the message / waveform determination process S4, the condition determination unit 15 determines whether the data satisfies the data gazing condition 151 based on the message data 22, the message analysis result 24, the waveform data 32, and the waveform analysis result 34. judge. Furthermore, in the message / waveform determination process S4, the synchronization unit 15 determines whether the message data 22 and the waveform data 32 are obtained from the same communication packet based on the synchronization condition 161.

  In the data observation process S5, the data that the operator wants to observe is output to a display device (not shown) via the communication means 17 and displayed on the display device, so that the operator can observe the data. .

  The condition setting process S1, the message collection process S2, the waveform collection process S3, the message / waveform determination process S4, and the data observation process S5 may be executed synchronously or asynchronously. You may do it.

  Next, details of the processes S1 to S5 performed by the data collection device 10 will be described.

(Condition setting process S1)
First, the condition setting process S1 will be described.

  FIG. 5 is a flowchart showing details of the condition setting process S1. As shown in FIG. 5, first, the condition input means 18 waits for an input (step S101; No).

  When there is an input from the outside (step S101; Yes), the condition input unit 18 refers to the condition generation table 181 to convert the input content from the outside into the data gazing condition 151 and sends it to the condition determination unit 15. Notification is made (step S102).

  The condition determination means 15 sets the notified data gazing condition as the data gazing condition 151 (step S103). After step S103 ends, the data collection device 10 returns to waiting for input again (step S101; No).

(Message collection process S2)
Next, the message collection process S2 will be described.

  FIG. 6 shows a flowchart showing details of the message collection process S2. As shown in FIG. 6, first, the message collection unit 11 waits until a communication packet transmitted through the transmission path 4 is intercepted (step S200; No).

  When a communication packet transmitted through the transmission path 4 is intercepted (step S200; Yes), the message collection unit 11 collects messages related to the communication packet transmitted through the transmission path 4 of the air conditioner 100 (step S201). ).

  Subsequently, the message collection unit 11 generates the collected message as the message data 22 as it is (step S202).

  Subsequently, the message collection unit 11 refers to the time measuring unit 13 and generates the time when the message was collected as the message collection time 23 (step S203). The generated message collection time 23 may be an absolute time, or may be a relative time from the time when the time measuring means 13 starts time measurement. The time acquisition unit is preferably about 1 millisecond, for example.

  Subsequently, the message collection unit 11 analyzes the message data 22 according to the message analysis rule 111 and generates the analysis result as the message analysis result 24 (step S204). By this analysis, an address included in the communication packet, presence / absence and type of communication error, environmental data (temperature data and pressure data), and the like are acquired and included in the message analysis result 24.

  Subsequently, the message collection unit 11 generates message information 20 included in the message data 22, the message collection time 23, and the message analysis result 24 generated so far (step S205). Here, the message collection unit 11 generates the message information 20 to which the message information ID 21 is added in addition to the message data 22, the message collection time 23, and the message analysis result 24. The message information ID21 may be given unique identification information in the order of generation.

  Subsequently, the message collection unit 11 stores the generated message information 20 in the storage unit 14 (step S206). After step S206 ends, the message collection unit 11 again waits for a communication packet (step S200; No).

(Waveform collection process S3)
Next, the waveform collection process S3 will be described.

  FIG. 7 shows a flowchart showing details of the waveform collection processing S3. As shown in FIG. 7, the waveform collection unit 12 waits until a communication packet transmitted through the transmission path 4 is intercepted (step S300; No).

  When a communication packet transmitted through the transmission path 4 is intercepted (step S300; Yes), the waveform collecting unit 12 collects a signal waveform of the communication packet transmitted through the transmission path 4 of the air conditioning apparatus 100 (step S301). ).

  The waveform collecting unit 12 generates waveform data 32 based on the collected signal waveform (step S302).

  Subsequently, the waveform collection unit 11 refers to the time measurement unit 13 and generates the time when the signal waveform is collected as the waveform collection time 33 (step S303). The waveform collection time 33 may also be an absolute time or a relative time, similar to the message collection time 22. The time acquisition unit can be, for example, about 1 millisecond.

  The waveform collection unit 12 analyzes the waveform data 32 according to the waveform analysis rule 121 and generates the analysis result as the waveform analysis result 34 (step S304). By this analysis, a parameter value (see FIG. 4) that characterizes the waveform data 32 is calculated by an arithmetic expression defined in the waveform analysis rule 121.

  The waveform collection unit 12 stores the waveform information 30 in the storage unit 14 (step S305).

  Next, the message / waveform determination process S4 will be described. FIG. 8 shows a flowchart showing details of the message / waveform determination processing S4.

  As shown in FIG. 8, first, the condition determination unit 15 sequentially refers to the message information 20 and the waveform information 30 stored in the storage unit 14 and determines whether each corresponds to the data gazing condition 151 ( Step S401).

  When it is determined that the message information 20 or the waveform information 30 corresponds to the data gazing condition 151 (step S401; Yes), the condition determination unit 15 adds the message information 20 and the waveform information 30 that satisfy the data gazing condition 151, The flag data 40 is set (step S402). On the other hand, when it is determined that the message information 20 or the waveform information 30 does not satisfy the data gazing condition 151 (step S401; No), the condition determination unit 15 proceeds to step S403 without setting the flag data 40 as it is. move on.

  Subsequently, the synchronization unit 16 sequentially refers to the message information 20 and the waveform information 30 stored in the storage unit 14, and is stored in the message data 22 and the waveform information 30 stored in the message information 20 according to the synchronization condition 161. Whether the waveform data 32 is collected from the same communication packet or not is determined (step S403).

  When the message data 22 and the waveform data 32 are collected from the same communication packet (step S403; Yes), the synchronization unit 16 stores the waveform information ID 31 included in the waveform information 30 in the message information 20 (step S403). S404). After step S404 is completed, the data collection device 10 returns to step S401.

  By executing this message / waveform determination processing S4, the flag data 40 is set in the message information 20 and the waveform information 30 that satisfy the data gazing condition, and the waveform information ID 31 is set in the message information 20, so that the flag data 40, By referring to the waveform information ID 31, it is possible to refer to both the telegram information 20 and the waveform information 30 related to the same communication packet that satisfies the data gazing condition. Thereby, the operator can analyze the communication packet transmitted through the transmission path 4 from both the logical layer level and the physical layer level. As a result of this analysis, the quality of service work for communication abnormality can be improved.

  Here, the message / waveform determination processing S4 by the condition determination unit 15 and the synchronization unit 16 will be described more specifically.

  More specifically, the message / waveform determination processing S4 by the condition determination unit 15 can be executed as in (1) to (5) below, for example.

  (1) The data gazing condition 151 includes a specific address among the unique addresses assigned to each of the plurality of devices in the communication packet. The message collection unit 11 analyzes the message data 22 and includes the address included in the message data 22 in the message analysis result 24. When the address included in the message analysis result 24 is included in a specific address, the condition determination unit 15 considers that the message information 20 satisfies the data gazing condition 151 and sets the flag data 40. The address included in the communication packet may be a transmission source address or a transmission destination address. According to this criterion, it is possible to quickly extract and observe the telegram information 20 related to a communication packet related to a specific device, so that an operator can efficiently perform an analysis concentrated on the specific device. .

  (2) The data gazing condition 151 includes a value or character string indicating the type of communication error defined in the communication protocol. The message collection unit 11 analyzes the message data 22 and includes information on whether or not a communication error has occurred in the communication packet in the message analysis result 24. If the message analysis result 24 indicates the occurrence of a communication error, the condition determination means 15 considers that the message information 20 satisfies the data gazing condition 151 and sets the flag data 40. According to this criterion, the message information 20 relating to the communication packet in which the communication error has occurred can be quickly extracted. Since the message information 20 includes a message collection time 23, a message analysis result 24, and the like, the operator can efficiently know when and what device has caused what communication error.

  (3) The data gazing condition 151 includes a threshold value (first threshold value) for environmental data (for example, temperature data and pressure data) used for control of the air conditioner 100. The message collection unit 11 analyzes the message data 22 and includes temperature data or pressure data in the message analysis result 24. When the temperature data or pressure data included in the message analysis result 24 of the message information 20 is above or below the threshold (that is, not within the allowable range), the condition determination unit 15 determines that the message information 20 is the data gazing condition. 151, the flag data 40 is set. According to this criterion, the telegram information 20 in which the temperature data and the pressure data are abnormal (that is, the telegram information 20 in which the air conditioner 100 is in an abnormal control state) can be quickly extracted. Since the message information 20 includes a message collection time 23 and a message analysis result 24, the operator can efficiently know when and which device is in what abnormal control state.

  (4) The data gaze condition 151 includes a threshold value (second threshold value) for the waveform analysis result 34. The waveform collecting means 12 analyzes the signal waveform and calculates the parameter value of the signal waveform (see FIG. 4). The condition determination means 15 considers that the waveform information 30 satisfies the data gazing condition 151 when the waveform analysis result 34 of the waveform information 30 is above or below the threshold (that is, not within the allowable range). , Flag data 40 is set. According to this criterion, it is possible to quickly extract the waveform information 30 indicating that the signal waveform has abnormal characteristics. Since the waveform information 30 includes the waveform collection time 33 and the waveform analysis result 34, the operator efficiently knows when and what kind of abnormality occurred at the physical layer level of the control network. be able to.

  (5) The logical product or logical sum of the above-described data gazing conditions 151 of (1) to (4) is set as the data gazing condition 151.

  More specifically, the message / waveform determination processing by the synchronization means 16 can be executed as in the following (1) to (4), for example.

  (1) The synchronization condition 161 includes that the difference between the message collection time 23 and the waveform collection time 33 is equal to or less than a threshold (third threshold). When this condition is satisfied, the synchronization unit 16 determines that both are collected from the same communication packet. According to this criterion, the telegram information 20 and the waveform information 30 can be easily associated with each other simply by referring to the telegram collection time 23 and the waveform collection time 33, so that the calculation load of the data collection device 10 is reduced. Can be reduced.

  (2) The synchronization condition 161 includes that the degree of coincidence between the waveform data obtained by converting the telegram data 22 into a physical layer level signal and the waveform data 32 is equal to or greater than a threshold (fourth threshold). Yes. When this condition is satisfied, the synchronization unit 16 determines that both are collected from the same communication packet. For the calculation of the degree of coincidence, an arbitrary calculation method such as a mean square error can be used. According to this determination criterion, since the message information 20 and the waveform information 30 can be more accurately associated with each other than (1), the accuracy of analysis can be increased.

  (3) The synchronization condition 161 includes that the degree of coincidence between the message converted from the waveform data 32 and the message data 22 is equal to or greater than a threshold (fifth threshold). When this condition is satisfied, the synchronization unit 16 determines that both are collected from the same communication packet. According to this determination criterion, since the message information 20 and the waveform information 30 can be more accurately associated with each other than (1), the accuracy of analysis can be increased.

  (4) The logical product or logical sum of the synchronization conditions 161 of (1) to (3) described above is set as the synchronization condition 161.

  Next, the data observation process S5 will be described. FIG. 9 shows a flowchart showing details of the data observation process S5.

  As shown in FIG. 9, first, the communication means 17 waits until a data processing device such as a personal computer is connected to the outside by wireless or wired (step S501; No). Here, if the communication means 17 is a wireless communication means (for example, infrared communication means or radio wave communication means), data can be collected by remote operation without connecting the data processing device to the data collection device 10. Therefore, the service work load can be reduced.

  When the data processing apparatus is connected (step S501; Yes), the communication unit 17 determines whether or not the flag data 40 is set for the message information 20 and the waveform information 30 stored in the storage unit 14. (Step S502).

  When the flag data 40 is set (step S502; Yes), the communication unit 17 transmits the message information 20 and the waveform information 30 to the data processing device (step S503). If the determination is negative in step S502 (step S502; No) or after step S503 ends, the communication unit 17 returns to step S501.

  As described above in detail, according to this embodiment, the message collection unit 11 and the waveform collection unit 12 are communication packets transmitted through the transmission path 4 connecting each of a plurality of devices constituting the air conditioning apparatus 100. Are collected according to the message analysis rule 111 and the waveform analysis rule 121, and the message information 20 and the waveform information 30 including the message, the signal waveform, and the result of the analysis are generated. The condition determination means 15 outputs the message information 20 and the waveform information 30 to the outside if the generated message information 20 and the waveform information 30 satisfy a data gazing condition 151 that is a condition of the communication packet to be watched. . Thereby, not only the operation of the air conditioner 100 but also data suitable for service work related to communication of the control communication network constructed in the air conditioner 100 can be collected more reliably and efficiently.

  Further, according to this embodiment, even if the worker does not have specialized knowledge, it is possible to collect data suitable for service work and send the data to the worker who has specialized knowledge. Therefore, the service work can be performed reliably, and the shortage of workers having specialized knowledge can be solved. Thereby, since the load of service work of the air conditioner can be reduced, the shortage of workers can be solved, and the system trouble can be solved early.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described.

  In the first embodiment, the flag data 40 is added to the message information 20 and the waveform information 30 to quickly extract the data that the operator wants to observe. However, in this embodiment, it is unnecessary for the observation. The data collection apparatus 10 that deletes data and leaves only data that the operator wants to observe will be described.

  FIG. 10 shows the configuration of the data collection device 10 according to this embodiment. As shown in FIG. 10, the data collection device 10 according to this embodiment further includes a data organizing means 19 in addition to the configuration of the data collection device 10 according to the first embodiment.

  The data organizing means 19 holds data organizing conditions 191. The data arrangement condition 191 is a condition for deleting the message information 20 and the waveform information 30 stored in the storage unit 14. The data organizing unit 19 deletes the message information 20 and the waveform information 30 stored in the storage unit 14 based on the data organizing condition 191.

  Next, the operation of the data collection device 10 in the second embodiment will be described.

  The condition input process S1, the message collection process S2, the waveform collection process S3, and the data observation process S5 are the same as the steps shown in the first embodiment. Here, a message / waveform determination process S4 different from that of the first embodiment will be described.

  FIG. 11 is a flowchart showing details of the message / waveform determination processing S4 in the second embodiment.

  As shown in FIG. 11, the condition determination unit 15 sequentially refers to the telegram information 20 and the waveform information 30 stored in the storage unit 14, and determines whether or not each satisfies the data gazing condition 151 (step S401a).

  Only when the data gazing condition 151 is satisfied (step S401a; Yes), the condition determination unit 15 sets the flag data 40 in the message information 20 and the waveform information 30 that satisfy the data gazing condition 151 (step S402a). .

  Subsequently, the synchronization unit 16 sequentially refers to the message information 20 and the waveform information 30 stored in the storage unit 14, and is stored in the message data 22 and the waveform information 30 stored in the message information 20 according to the synchronization condition 161. It is determined whether or not the waveform data 32 is collected from the same communication packet (step S403a).

  Only when it is determined that the packets are collected from the same communication packet (step S403a; Yes), the synchronization unit 16 sets the waveform information ID 31 included in the waveform information 30 for the message information 20 and the waveform information 30, and the message information 20 (Step S404a).

  Subsequently, the data organizing unit 19 sequentially refers to the message information 20 and the waveform information 30 stored in the storage unit 14, and determines whether or not the data organizing condition 191 is satisfied (step S405a).

  Only when the data organization condition 191 is met (step S405a; Yes), the data organization unit 19 deletes the message information 20 and the waveform information 30 that satisfy the data organization condition 191 from the storage unit 14 (step S406a). . After step S406a ends, the data collection device 10 returns to step S401a.

  Since the data storage means 19 can reduce the storage capacity required for the storage means 14, it is possible to reduce the cost of the data collection device 10 while retaining data suitable for service work.

The data organization condition 191 can be set, for example, as in the following (1) to (5).
(1) The flag data 40 is not set (the data watching condition 151 is not satisfied).
According to the data arrangement condition 191, the operator can extract data to be observed, and can minimize the storage capacity used by the storage unit 14.

(2) The flag data 40 is not set in a predetermined time zone before and after the telegram information 20 and the waveform information 30 (which satisfies the data gaze condition 151).
According to the data arrangement condition 191, for example, since the operator can observe the behavior of the air conditioning apparatus 100 before and after the occurrence of a communication error and an abnormal control state, a more detailed abnormality cause analysis can be performed. The storage capacity of the storage means 14 can be reduced.

(3) The waveform information ID 31 of the waveform information 30 is not included in any message information 20 and it cannot be determined from which device to which device (the waveform information 30 is not associated with the message information 20). about).
This is because such waveform information 30 is not suitable for abnormality factor analysis. According to the data arrangement condition 191, the waveform information 30 that cannot be determined from which device is sent to which device can be deleted, and the storage capacity of the storage unit 14 can be reduced.

(4) The message collection time 23 or the waveform collection time 33 is included in the time zone preset in the data organizing means 19.
The data organizing means 19 deletes the message information 20 and the waveform information 30 in which the message collection time 23 and the waveform collection time 33 are included in the time zone.
According to this condition, the data can be selected according to the time zone, so that the operating state of the air conditioner 100 in a certain time zone can be quickly grasped, and the storage capacity used by the storage means 14 can be reduced. it can.

  (5) Logical product or logical sum of the data reduction conditions 191 of (1) to (4) described above

  In each of the above embodiments, the message collection unit 11, the waveform collection unit 12, the time measurement unit 13, the condition determination unit 15, the synchronization unit 16, and the communication unit 17 can also be realized by hardware such as a circuit device. However, as described above, it can also be realized by a software program executed by an arithmetic device such as a microcomputer or a CPU. Further, the message analysis rule 111, the waveform analysis rule 121, the data gazing condition 151, and the like may be realized by logic configured on software, or may be realized by a circuit device or the like equivalent thereto. May be.

  The storage unit 14 can be configured by a writable storage device such as a volatile memory, a nonvolatile memory, or an HDD (Hard Disk Drive). The storage unit 14 may be configured by dividing logical partitions on the same storage device, or may store various information as files in the same storage device.

  The communication unit 17 may be a wireless communication unit using infrared communication or radio wave communication, or may be a wired communication port such as USB or serial communication.

  In addition, the condition input means 18 may be configured by a switch provided on the outer surface (operation panel) of the housing of the data collection device 10 or input data to the data collection device 10 connected to a computer or the like. You may comprise by a means.

  The data organizing means 19 can be realized by hardware such as a circuit device, or can be realized as software executed by an arithmetic device such as a microcomputer or CPU. The data organization condition 191 may be realized by logic configured on a software program, or may be realized by a circuit device or the like equivalent thereto.

  Further, the format of the message information 20 and the waveform information 30 is not particularly limited. The set data may be a numerical value or a character string.

  In addition, the data collection device 10 may be incorporated in the air conditioning device 100.

  The data collection device 10 according to each of the above embodiments does not require a high level of data processing performance, and can be configured with only an embedded device. Thereby, it is possible to make the data collection device 10 excellent in portability and easy to install on the site for a long time (in terms of security).

  Since the data collection device 10 according to each of the above embodiments can set various data gazing conditions, it can be applied regardless of the model of the air conditioner 100.

  In addition, the data collection device 100 according to each of the above embodiments collectively outputs the data to an advanced data processing device such as a personal computer (PC) after the completion of data collection. As a result, the analysis can be performed by a computer having a high processing capability, so that it is possible to cope with a detailed abnormality cause analysis.

  In the above embodiment, the program to be executed is a computer-readable recording such as a flexible disk, a CD-ROM (Compact Disk Read-Only Memory), a DVD (Digital Versatile Disk), and an MO (Magneto-Optical Disk). A system that executes the above-described processing may be configured by storing and distributing the program on a medium and installing the program.

  Further, the program may be stored in a disk device or the like of a predetermined server device on a communication network such as the Internet, and may be downloaded, for example, superimposed on a carrier wave.

  In addition, when the above functions are realized by sharing an OS (Operating System), or when the functions are realized by cooperation between the OS and an application, only the part other than the OS may be stored in a medium and distributed. You may also download it.

  The present invention is suitable as a data collection device that collects data suitable for service work of an air conditioner installed in a building or the like. Furthermore, the present invention is also suitable as a data collection device that collects data suitable for communication abnormality analysis in other wired or wireless network systems such as monitoring systems and building lighting systems.

DESCRIPTION OF SYMBOLS 1 Outdoor unit 2 Indoor unit 3 Controller 4 Transmission path 10 Data collection apparatus 11 Message collection means 12 Waveform collection means 13 Timekeeping means 14 Storage means 15 Condition determination means 16 Synchronization means 17 Communication means 18 Condition input means 19 Data arrangement means 20 Message information 21 Message information ID
22 Message data 23 Message collection time 24 Message analysis result 30 Waveform information 31 Waveform information ID
32 Waveform data 33 Waveform collection time 34 Waveform analysis result 40 Flag data 100 Air conditioner 111 Message analysis rule 121 Waveform analysis rule 151 Data gaze condition 161 Synchronization condition 181 Condition generation table 191 Data organization condition

Claims (16)

Collecting a message related to a communication packet transmitted through a transmission path that connects each of a plurality of devices constituting the air conditioner, and analyzing the message collected according to a predetermined message analysis rule, the message and the message A message collection means for generating message information including the analysis result of the message;
Waveform collection means for generating waveform information including the signal waveform and the analysis result of the signal waveform by collecting the signal waveform related to the communication packet and analyzing the signal waveform collected according to a predetermined waveform analysis rule When,
Storage means for storing the message information and the waveform information;
An input means for inputting a data gazing condition that is a condition of a communication packet to be gazed;
Condition determining means for determining whether at least one of the message information and the waveform information satisfies the data gazing condition;
Synchronization means for associating the message information with the waveform information based on a predetermined synchronization condition;
An output unit that satisfies the data gazing condition and outputs the associated message information and the waveform information;
Data organizing means for deleting the message information and the waveform information satisfying a predetermined data organizing condition from the storage means;
A data collection device comprising: The data gaze condition is
The communication packet includes a specific address among unique addresses assigned to each of the plurality of devices,
The message collection means includes:
Analyzing the message, extracting the address contained in the message,
The condition determining means includes
When the specific address is included in the extracted address, it is determined that the message information satisfies the data gazing condition.
The data collection device according to claim 1. The data gaze condition is
Including information on communication errors in the communication packet;
The message collection means includes:
Analyzing the telegram to extract information on communication errors in the communication packet;
The condition determining means includes
When the communication error has occurred in the message, it is determined that the message information satisfies the data gazing condition;
The data collection device according to claim 1, wherein the data collection device is a data collection device. The data gaze condition is
Including the acceptable range of environmental data,
The message collection means includes:
Analyzing the message to determine whether the environmental data included in the message is within the allowable range;
The condition determining means includes
When the environmental data is not within the allowable range, it is determined that the message information satisfies the data gazing condition.
The data collection device according to claim 1, wherein the data collection device is a data collection device. The data gaze condition is
Including an acceptable range of parameters of the signal waveform,
The waveform collecting means includes
Analyzing the signal waveform, calculating a value of a parameter characterizing the signal waveform,
The condition determining means includes
When the value of the parameter is not within the allowable range, it is determined that the waveform information satisfies the data gazing condition.
The data collection device according to claim 1, wherein the data collection device is a data collection device. It further comprises a time measuring means for measuring time,
The message collection means acquires a first time when the message is collected based on the time counted by the time measurement means,
The waveform collecting means acquires a second time when the signal waveform is collected based on the time counted by the time measuring means,
The synchronization means includes
When the difference between the first time and the second time is equal to or less than a predetermined threshold, the message information and the waveform information are associated with each other as collected from the same communication packet. ,
The data collection device according to claim 1, wherein the data collection device is a data collection device. The synchronization means includes
When the degree of coincidence between the signal waveform converted from the message and the signal waveform collected by the waveform collecting unit is equal to or greater than a predetermined threshold, the message information is collected from the same communication packet. And correlating the waveform information,
The data collection device according to claim 1, wherein the data collection device is a data collection device. The synchronization means includes
When the correspondence between the telegram converted from the signal waveform and the telegram collected by the telegram collection means is equal to or greater than a predetermined threshold, the telegram information is assumed to have been collected from the same communication packet. Corresponding with the waveform information,
The data collection device according to claim 1, wherein the data collection device is a data collection device. The data reduction condition is as follows:
Including not satisfying the data gazing condition,
The data collection device according to claim 1 , wherein the data collection device is a data collection device. The data reduction condition is as follows:
The message information and the waveform information are
The message information satisfying the data gaze condition and the waveform information are not acquired in a predetermined time zone before and after the acquisition,
The data collection device according to claim 1 , wherein the data collection device is a data collection device. The data reduction condition is as follows:
Including that the waveform information is not associated with the message information;
Data collection device according to any one of claims 1 to 1 0, characterized in that. It further comprises a time measuring means for measuring time,
The message collection means acquires a first time when the message is collected based on the time counted by the time measurement means,
The waveform collecting means acquires a second time when the signal waveform is collected based on the time counted by the time measuring means,
The data reduction condition is as follows:
Including a predetermined time zone,
The data organizing means is
Deleting the message information and the waveform information in which the first time and the second time are included in the time zone;
Data collection device according to any one of claims 1 to 1 1, characterized in that. A data collecting device according to any one of claims 1 to 1 2,
Outdoor unit,
Indoor unit,
A controller for controlling the outdoor unit and the indoor unit;
An air conditioner comprising: Plurality comprising data acquisition system data collection device according to any one of claims 1 to 1 2. The computer collects a telegram related to a communication packet transmitted through a transmission path connecting each of a plurality of devices constituting the air conditioner , and analyzes the telegram collected according to a predetermined telegram analysis rule, thereby Generating message information including a message and the analysis result of the message;
A computer collects a signal waveform related to the communication packet and analyzes the signal waveform collected according to a predetermined waveform analysis rule, thereby generating waveform information including the signal waveform and the analysis result of the signal waveform. Steps,
A computer storing the message information and the waveform information;
And step computer, for inputting data gaze condition is a condition of a communication packet to look carefully,
A computer determining whether at least one of the message information and the waveform information satisfies the data gazing condition;
A step of associating the message information with the waveform information based on a predetermined synchronization condition;
A computer that satisfies the data gazing condition and outputs the associated message information and waveform information;
The computer deleting the message information and the waveform information satisfying a predetermined data reduction condition;
Data collection method including. Computer
Collecting a message related to a communication packet transmitted through a transmission path that connects each of a plurality of devices constituting the air conditioner, and analyzing the message collected according to a predetermined message analysis rule, the message and the message A message collection means for generating message information including the analysis result of the message;
Waveform collection means for generating waveform information including the signal waveform and the analysis result of the signal waveform by collecting the signal waveform related to the communication packet and analyzing the signal waveform collected according to a predetermined waveform analysis rule When,
Storage means for storing the message information and the waveform information;
An input means for inputting a data gazing condition that is a condition of a communication packet to be gazed;
Condition determining means for determining whether at least one of the message information and the waveform information satisfies the data gazing condition;
Synchronization means for associating the message information with the waveform information based on a predetermined synchronization condition;
An output unit that satisfies the data gazing condition and outputs the associated message information and the waveform information;
Data organizing means for deleting the message information and the waveform information satisfying a predetermined data organizing condition from the storage means;
Program to make it work.

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