JP2012107800A - Device for collecting operation data - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology that can reduce cost for a nonvolatile storage medium, and efficiently collect data necessary for investigating the cause of a failure occurred in the storage medium.SOLUTION: The device for collecting operation data includes: operation data detection parts 20a, 20b, 20c, 20p, and 20q for detecting operation data associated with the operation of an air conditioner having a refrigeration cycle controlled via communication; a first memory storage 30 for memorizing operation data for each time of a first time interval; an irregularity detection part 40 for detecting irregularity in the operation of the air conditioner; and a second memory storage 50 for memorizing, when the operation irregularity is attributed to a pressure failure with the nonvolatile storage medium adopted, operation data for each time of a second time interval that is more wider than the first time interval, and for memorizing, when the operation irregularity is attributed to a communication failure, operation data for each time of a third time interval that is more wider than the second time interval.

Description

  The present invention relates to a technique for collecting data, and more particularly to a technique for collecting operation data of a device having a refrigeration cycle that is controlled through communication.

  For example, various operation data such as pressure and temperature when the air conditioner is in operation is stored at certain time intervals, and when a failure such as a failure occurs, the transition of the operation data is verified. Thus, a technique for identifying the cause of failure has been proposed. A technique for storing operation data in preparation for failure analysis is disclosed in, for example, Patent Document 1 listed below.

JP 2008-009854 A

  For example, when the target for collecting operation data is an air conditioner that is controlled via communication, the failure that occurs in the air conditioner is a failure related to a pressure abnormality in the refrigeration cycle of the air conditioner. It can be broadly classified as a failure related to a communication abnormality in a communication path for controlling the air conditioner. And when a failure occurs, if the failure is related to a pressure abnormality, in order to specify the cause of the failure in detail, the operation data within a relatively short time until the failure occurs is relatively It is often desirable to analyze at short time intervals. On the other hand, if the failure that has occurred is related to a communication abnormality, it is often desirable to analyze operation data within a relatively long time until the failure occurs at a relatively long time interval. In other words, depending on the type of failure, it may be desirable to vary the period for collecting operation data and the time interval for collecting operation data.

  For example, the operation data is stored in a non-volatile storage medium such as an EEPROM to prepare for the disappearance of the operation data due to the interruption of the power supply. However, such a nonvolatile storage medium is generally expensive. For this reason, if priority is given to manufacturing cost control, operation data sufficient for specifying the cause of failure cannot be stored. If the operation data sufficient to identify the cause of the failure is saved, the manufacturing cost increases.

  In view of the above problems, an object of the present invention is to provide a technique for efficiently collecting data necessary for elucidating the cause of a failure in a storage medium while suppressing the cost required for the nonvolatile storage medium.

  In order to solve the above-described problem, a first aspect of an operation data collection device according to the present invention is an operation data detection unit that detects operation data related to an operation state of a device (10) having a refrigeration cycle that is controlled via communication. (20a, 20b,...), A first storage unit (30) that stores the operation data for each first time interval (t1), and an abnormality detection unit (40) that detects an operation abnormality of the device. When the operation abnormality is a pressure abnormality when a non-volatile storage medium is employed, the operation data is stored every second time interval (t2) that is equal to or greater than the first time interval, and the operation abnormality is a communication abnormality. In this case, the operation data collection device (100) includes a second storage unit (50) that stores the operation data for each third time interval (t3) longer than the second time interval. .

  The 2nd mode of the operation data collection device concerning the present invention is the 1st mode, and the operation data is the 1st operation data about the pressure of the refrigerating cycle, and the 2nd operation data about the control. And selecting at least the first operation data when the operation abnormality is the pressure abnormality, and selecting at least the second operation data when the operation abnormality is the communication abnormality. (60), and the second storage unit (50) stores at least one of the first or second operation data selected by the selection unit.

  A third aspect of the operation data collection device according to the present invention is the second aspect thereof, wherein the refrigeration cycle includes a compressor (12), and the first operation data includes the compressor. A discharge pipe temperature (Ta), a high pressure side pressure (Pa) of the compressor, a low pressure side pressure (Pb) of the compressor, and a driving current (Ia) of the compressor, and The second operation data has an operation frequency (Fa) of the compressor.

  A fourth aspect of the operation data collection device according to the present invention is the second or third aspect thereof, wherein the selection unit (60) is configured to perform the first operation when the operation abnormality is the pressure abnormality. When the first operation data at least every second time interval (t2) is selected and output from the operation data stored in the storage unit (30), and the operation abnormality is the communication abnormality. Selects and outputs the second operation data at least every third time interval (t3) from among the operation data stored in the first storage unit, and outputs the second storage unit (60 ) Stores at least one of the first operation data output from the selection unit and the second operation data output from the selection unit.

  A fifth aspect of the operation data collection device according to the present invention is any one of the first to fourth aspects, wherein the selection unit (60) performs the operation every first time interval (t1). Data is selected and output, and the first storage unit (30) stores the detection result selected by the selection unit.

  Data necessary for elucidating the cause of pressure abnormality changes in a relatively short time, and data necessary for elucidating the cause of communication abnormality changes in a relatively long period. Therefore, according to the first aspect of the operation data collection device of the present invention, since the type of operation data and the time interval are stored in accordance with the type of operation abnormality, data necessary for elucidating the cause of the operation abnormality is stored. Can be collected efficiently. Therefore, the amount of memory required can be reduced compared to the case where all data is always collected regardless of the type of operation abnormality. In general, since the nonvolatile storage medium is expensive, the cost increases when all the operation data is stored in the nonvolatile storage medium. However, the time interval of the operation data to be stored differs depending on the type of operation abnormality. Therefore, it contributes to the elucidation of the cause of abnormal operation while suppressing the increase in cost.

  According to the 2nd aspect of the driving | running | working data collection apparatus which concerns on this invention, it contributes to elucidation of the cause of driving | operation abnormality.

  According to the third aspect of the operation data collecting apparatus of the present invention, it contributes to elucidation of the cause when a pressure abnormality occurs and the cause elucidation when a communication abnormality occurs.

  According to the fourth aspect of the operation data collection device of the present invention, the second storage unit is simply a storage function, and there is no need to consider the second time interval / third time interval.

  According to the fifth aspect of the operation data collecting apparatus of the present invention, the first storage unit is simply a storage function, and it is not necessary to consider the first time interval.

It is the schematic which illustrates the air conditioning system by which the driving | operation data collection apparatus which concerns on embodiment of this invention is mounted. It is a figure which illustrates the piping system of an air conditioner. It is a figure which illustrates the electric system of a compressor. It is a figure which illustrates the electric system of a fan. It is a conceptual diagram explaining the schematic structure of an operation data collection device. It is a key map explaining saving operation data in the 2nd storage part. It is a flowchart which shows operation | movement of a driving | operation data collection apparatus. It is a modification of an air conditioning system. It is a figure which illustrates an air conditioner. It is a figure which illustrates the display mode of a display part.

  Preferred embodiments of the present invention will be described below with reference to the drawings. In the following drawings including FIG. 1, only elements related to the present invention are shown.

<Constitution>
As shown in FIG. 1, the operation data collection device 100 is provided in each of a plurality of air conditioners 10 constituting the air conditioning system 1, for example. The air conditioning system 1 includes, for example, a plurality of air conditioners 10 (two in FIG. 1), an operation device 3 that receives an operation command for them from an operator, and an operation command that is input to the operation device 3 to receive air And a control device 5 that controls each of the harmony machines 10.

  One air conditioner 10 includes a piping system as shown in FIG. 2 and an electrical system as shown in FIGS. Specifically, one air conditioner 10 includes an outdoor unit 14 including a compressor 12 and an indoor unit 18 including an indoor fan 16.

  In addition to the compressor 12, the outdoor unit 14 includes an accumulator 11, a heat exchanger 13, and a receiver 15. The compressor 12 compresses the gas heating medium supplied via the accumulator 11. The accumulator 11 supplies the compressor 12 with a gas heat medium obtained by separating the liquid heat medium from the heat medium supplied from the indoor unit 18 to the compressor 12. Thereby, the compressor 12 is prevented from compressing the liquid heat medium, and the compressor 12 is protected. The compressed heat medium is converted to a desired temperature by the heat exchanger 13 and supplied to the receiver 15. The receiver 15 removes oil from the heat medium supplied to the receiver 15 and supplies the oil to the indoor unit 18. This prevents oil from accumulating in the piping. The oil separated by the receiver 15 is returned to the accumulator 11. The heat medium supplied to the indoor unit 18 returns to the outdoor unit 14 via the evaporator 19. The indoor fan 16 sends air to the evaporator 19 to supply air at a desired temperature into the room.

  As shown in FIG. 3, the electric system of the compressor 12 includes a commercial power supply 31, an inverter circuit 32, and a compressor motor 33. Although not shown, the power source 31 not only supplies power to the inverter circuit 32 but also removes noise before the inverter circuit 32 and supplies power to the four-way valve 17 (see FIG. 2). The four-way valve 17 is a flow path switching valve that has four outflow inlets through which the heat medium passes and switches the combination of these outflow inlets by a switching operation.

  The inverter circuit 32 uses a commercial power supply 31 to control a compressor motor 33 that is a load. The AC current from the commercial power supply 31 is input to the converter unit 34 employing a diode bridge after the noise is removed, rectified, and converted into a DC current. The pulsation of the direct current is reduced by the smoothing capacitor 35. The voltage across the smoothing capacitor 35 is applied to the inverter unit 36. The inverter unit 36 generates a desired three-phase alternating current using a semiconductor switching element such as an IGBT and drives the compressor motor 33.

  As shown in FIG. 4, the electrical system of the indoor fan 16 includes a commercial power supply 31, an inverter circuit 42, and a fan motor 43. The inverter circuit 42 uses a commercial power supply 31 to control a fan motor 43 that is a load. Similarly to the inverter circuit 32 described above, the inverter circuit 42 includes a converter unit 44, a smoothing capacitor 45, and an inverter unit 46, and generates a desired three-phase alternating current.

  For such an air conditioner 10, the operation data collection device 100 includes, for example, a plurality of operation data detection units 20a, 20b, 20c,..., 20p, 20q, as shown in FIG. Storage units 30 and 50, an abnormality detection unit 40, and a selection unit 60 are provided.

  The plurality of operation data detection units 20a, 20b, 20c,..., 20p, 20q detect operation data related to the operation state of the air conditioner. Here, for the sake of convenience, the first operation data detection unit 20 a, the second operation data detection unit 20 b,..., The first operation data detection unit 20 a has the pressure of the heat medium compressed by the compressor 12 ( Hereinafter, Pa is referred to as “high pressure”. The second operation data detection unit 20b sequentially detects the temperature (hereinafter referred to as “discharge pipe temperature”) Ta of the heat medium compressed by the compressor 12. The third operation data detection unit 20 c sequentially detects a current (hereinafter referred to as “compressor current”) Ia flowing through the compressor motor 33 between the smoothing capacitor 35 and the inverter unit 36. The fourth operation data detection unit 20p sequentially detects the frequency (hereinafter referred to as “compressor frequency”) Fa of the compressor current Ia by the inverter unit 36. The fifth operation data detection unit 20q sequentially detects the frequency of the current flowing through the fan motor 43 (hereinafter referred to as “indoor fan frequency”).

  The first storage unit 30 employs a volatile storage medium such as a RAM, for example, and the first to fifth operation data detection units 20a, 20b, 20c, and the like at every first time interval t1 (for example, 1 second). Of the operation data sequentially detected at 20p and 20q, the latest operation data for 10 minutes is stored. In the present embodiment, the first to fifth operation data detection units 20a, 20b, 20c, 20p, and 20q sequentially detect the operation data, and the first storage unit 30 performs every first time interval t1. Although the operation data is stored, the first to fifth operation data detection units 20a, 20b, 20c, 20p, and 20q detect the operation data at each first time interval t1, and the operation data is stored in the first data. You may make it the memory | storage part 30 memorize | store sequentially.

  The abnormality detection unit 40 detects an operation abnormality of the air conditioner 10. Specifically, for example, each operation data detected by the first to fifth operation data detection units 20a, 20b, 20c, 20p, and 20q is compared with each of predetermined values corresponding to each operation data. An abnormal operation of the air conditioner 10 is detected. More specifically, for example, the abnormality detection unit 40 stores a normal value range (threshold value that becomes an abnormal value) of the high pressure Pa detected by the first operation data detection unit 20a, and the first operation data detection It is sequentially determined whether or not the high pressure Pa detected by the unit 20a is within the normal value range. When the high pressure Pa deviates from the normal value range, the abnormality detection unit 40 determines that an operation abnormality has occurred in the air conditioner 10.

  Here, at least one of the operation data (high pressure Pa, discharge pipe temperature Ta, compressor current Ia) detected by the first to third operation data detectors 20a, 20b, 20c corresponds to each operation data. When deviating from the normal value range, it is determined that an operation abnormality occurring in the air conditioner 10 has caused an abnormality in the pressure of the refrigeration cycle (hereinafter referred to as “pressure abnormality” or “high pressure abnormality”). In addition, at least one of the operation data (compressor frequency Fa, indoor fan frequency Fb) detected by the fourth and fifth operation data detection units 20p and 20q deviates from the normal value range corresponding to each operation data. In such a case, it is determined that the operation abnormality that has occurred in the air conditioner 10 has occurred, for example, in the communication system between the control device 5 and the air conditioner 10 (hereinafter referred to as “communication abnormality”).

  When the operation abnormality occurring in the air conditioner 10 is a pressure abnormality, the selection unit 60 is at least the high pressure Pa, the discharge pipe temperature Ta, and the compressor current Ia (“first in the means for solving the problems of the present invention” Is selected from the operation data stored in the first storage unit 30, and the result of the selection is sent to the second storage unit 50. Further, when the operation abnormality occurring in the air conditioner 10 is a communication abnormality, the selection unit 60 at least includes the compressor frequency Fa and the indoor fan frequency Fb (“second operation data in the means for solving the problems of the present invention”). Is selected from the operation data stored in the first storage unit 30, and the result of the selection is sent to the second storage unit 50.

  The second storage unit 50 employs a nonvolatile storage medium such as an EEPROM, and stores data selected by the selection unit 60 from the operation data stored in the first storage unit 30. Specifically, as shown in FIG. 6, when the abnormality detection unit 40 determines that the operation abnormality is a pressure abnormality, at least every second time interval t2 (for example, 1 second) equal to or greater than the first time interval t1. First operation data is stored. In addition, when the abnormality detection unit 40 determines that the operation abnormality is a communication abnormality, at least second operation data is stored every third time interval t3 (for example, 1 minute) longer than the second time interval t2. .

  In addition, when the operation abnormality that has occurred in the air conditioner 10 is a pressure abnormality, the selection unit 60 selects the first data at least every second time interval t2 among the operation data stored in the first storage unit 30. Operation data may be selected and output. In addition, when the operation abnormality occurring in the air conditioner 10 is a communication abnormality, the selection unit 60 includes the second data at least every third time interval t3 among the operation data stored in the first storage unit 30. Operation data may be selected and output. In this way, the second storage unit 50 only needs to have a storage function, and the second storage unit 50 has a function that takes into account the second time interval t2 or the third time interval t3. There is no need.

  The selection unit 60 may select operation data for each first time interval t1 and output the operation data to the first storage unit 30. In this way, the first storage unit 30 only needs to have a storage function, and the first storage unit 30 is provided with a function that considers the first time interval t1 as the timing of outputting the operation data. There is no need.

  When a high pressure abnormality occurs in the air conditioner 10, the fluctuation can be recognized by the first operation data in a relatively short period (in this embodiment, 10 seconds as shown in FIG. 6). On the other hand, when communication abnormality occurs in the air conditioner 10, the second operation over a relatively long period (in this embodiment, 10 minutes as shown in FIG. 6) to recognize the fluctuation of the second operation data. Data is required. That is, in order to specify in detail the cause of the high-pressure abnormality, it is desirable to know the first operation data from 10 seconds before the occurrence of the high-pressure abnormality. Further, in order to specify in detail the cause of the communication abnormality, it is desirable to know the second operation data from 10 minutes before the communication abnormality occurs. In other words, the second operation data is not necessarily required to specify the cause of occurrence of the high voltage abnormality in detail, and the first operation data is not necessarily required to specify the cause of occurrence of the communication abnormality in detail. As described above, the period required for recognizing the change in the first operation data is shorter than the period required for recognizing the change in the second operation data. Therefore, the first operation data is stored as data at a relatively short time interval (for example, one second interval), and the second operation data is stored as data at a relatively long time interval (for example, one minute interval). It is desirable.

  Therefore, by reducing the type of operation data stored from the first storage unit 30 to the second storage unit 50 according to the type of operation abnormality, to one of the first and second operation data, The capacity required for the second storage unit 50 can be reduced, which contributes to a reduction in manufacturing costs. Further, the time interval of the operation data stored from the first storage unit 30 to the second storage unit 50 in accordance with the type of operation abnormality is changed from the first time interval t1 to the second time interval t2 (≧ t1). Alternatively, by extending to the third time interval t3 (> t2 ≧ t1), the capacity required for the second storage unit 50 can be reduced, which contributes to the suppression of the manufacturing cost.

  As in this embodiment, the first operation data includes three types of operation data, the second operation data includes two types of operation data, and three types of operation when a pressure abnormality occurs. While data is selected, two types of operation data are selected when a communication abnormality occurs. That is, the number of types of operation data selected varies depending on the type of operation abnormality. The 2nd memory | storage part 50 needs to have the largest capacity | capacitance among the capacity | capacitance calculated | required when each driving | operation abnormality arises. According to this embodiment, a capacity for storing each of the three types of data for 10 seconds at intervals of 1 second is necessary.

  Further, for example, even when a communication abnormality occurs, the first storage data such as the compressor current Ia may be stored in the second storage unit 50 as needed. Further, the time interval of the first operation data at that time may be any of the first to third time intervals t1, t2, and t3.

  In addition, in FIGS. 1 and 2, among the components included in the operation data collection device 100 in order to facilitate understanding of the configuration of the air conditioner 10, only the first storage unit 30 is indicated by a broken line in the outdoor unit 14, Although the abnormality detection unit 40, the second storage unit 50, and the selection unit 60 are not shown, any component may be provided in either the outdoor unit 14 or the indoor unit 18. Further, either the outdoor unit 14 or the indoor unit 18 may be provided separately.

  In the present embodiment, only the first to fifth operation data detection units 20a, 20b, 20c, 20p, and 20q are illustrated, but it is needless to say that the present invention is not necessarily limited thereto. For example, the opening degrees Qa and Qb of the first and second electronic expansion valves EV1 and EV2 provided before and after the receiver 15 on the flow path of the heat medium are detected and stored in the first storage unit 30. When an abnormality occurs, the opening degrees Qa and Qb of the first and second electronic expansion valves EV1 and EV2 may be stored in the second storage unit 50.

<Operation>
The operation data collection apparatus 100 having the above configuration performs an operation as shown in the flowchart of FIG. In this flowchart, only the operation for the operation data collection device 100 to collect operation data is shown, and illustration and description of other processing operations are omitted.

  When the air conditioner 10 starts operation, each of the first to fifth operation data detections 20a, 20b, 20c, 20p, and 20q detects operation data (step S101). And all the driving | operation data for every 1st time interval t1 are stored in the 1st memory | storage part (RAM of FIG. 7) 30 (step S102). The operations in steps S101 and S102 are repeated until the abnormality detection unit 40 detects an abnormality (that is, N is continuously selected in step S103). When the abnormality detection unit 40 detects an abnormality, Y is selected in step S103, and it is determined whether or not the abnormality that has occurred is a pressure abnormality (step S104).

  If the abnormality that has occurred is a pressure abnormality, Y is selected in step S104, the first operation data for each second time interval t2 is stored from the RAM into the EEPROM (step S105), and the operation is terminated. Further, if the generated abnormality is not a pressure abnormality (N is selected in step S104), the generated abnormality is determined to be a communication abnormality (step S106), and the second operation data for each third time interval t3 is obtained. The data is stored in the EEPROM from the RAM (step S107), and the operation is terminated.

<Modification>
As mentioned above, although preferred embodiment of this invention was described, this invention is not limited to this. For example, in the above embodiment, the air conditioner 10 has been described as having the outdoor unit 14 and the indoor unit 18 as separate units. However, as shown in FIG. 8, the compressor 12 and the indoor fan 16 are integrated. The air conditioner 10A may be used. In addition, in FIG. 8, 1A of air conditioning systems provided with multiple air conditioner 10A are shown.

  Moreover, in the said embodiment, although the aspect which provides the driving | operation data collection apparatus 100 in each of the air conditioner 10 was demonstrated, as shown in FIG. 9, it operates to the control apparatus 5A which controls the several air conditioner 10, for example. A data collection device 100 may be provided, and one operation data collection device 100 may collect operation data of a plurality of air conditioners 10. In that case, the 1st thru | or 5th operation data detection part 20a, 20b, 20c, 20p, 20q (refer FIG. 5) employ | adopts only the number of the air conditioners 10 which control apparatus 5A controls, and is air-conditioning. Although it is necessary to attach to each of the machine 10, the 1st and 2nd memory | storage parts 30 and 50 (refer FIG. 5) do not necessarily need for the number of the air conditioners 10. FIG. Further, it is desirable that the storage capacities of the first and second storage units 30 and 50 are appropriately increased.

  When an operation abnormality occurs, for example, on the display unit 91 included in the operation device 3 shown in FIG. 1, a code number corresponding to the type of operation abnormality (whether pressure abnormality or communication abnormality) (hereinafter, “ A technique for helping to promptly respond to a driving abnormality by putting an “abnormal code”) is put into practical use. Further, for each abnormal code, for example, a detailed code number (hereinafter referred to as “detailed code”) that can specify the cause of abnormality (or abnormality occurrence location) is displayed on the display unit 91 simultaneously with the abnormal code. Thus, a technology that helps a quicker response to abnormal driving has been proposed.

  For example, when the display unit 91 employs an LCD, it is desirable to have two display patterns (for example, a 7-segment display) in order to display a detailed code simultaneously with an abnormal code. On the other hand, it is not easy to change the display pattern. In addition, since there is no need to display the set temperature and time when an operational abnormality occurs, a detailed code can be displayed in the display pattern for displaying these, but the position of the display pattern for displaying the abnormal code The operator may be confused because of the separation and the size of the display pattern.

  Therefore, as shown in FIG. 10, on the display pattern 92 for displaying the abnormal code, the abnormal code and the detailed code are alternately displayed at regular intervals. In FIG. 10, the display of the set temperature and time displayed by the display unit 91 is not shown. Further, here, an example in which one operation data collection device 100 collects operation data of a plurality of air conditioners 10 is taken as an example, and the number “UNIT NO. 1 ”is displayed, and an abnormal code and a detailed code are displayed in the lower part. Specifically, “GROUP A6” displayed in the lower part of the display pattern 92 in the upper part of FIG. 10 indicates an abnormality code corresponding to the pressure abnormality, and “GROUP 01” displayed in the lower part of FIG. Indicates a detail code.

  Thus, by displaying the detailed code, it is possible to obtain detailed information about the driving abnormality, which contributes to a quick response to the driving abnormality. Further, if the abnormal code and the detailed code are alternately displayed on the one display pattern 92 at regular intervals, it is not necessary to change the hardware such as changing the display pattern 92. Applicable. Further, as shown in FIG. 10, for example, if the abnormal code is represented by alphabets and numerals and the detailed code is represented only by numerals, it is possible to avoid confusion between the abnormal code and the detailed code.

Operation frequency of Fa compressor Ia Drive current of compressor Pa High pressure side pressure of compressor Pb Low pressure side pressure of compressor Ta Temperature of discharge pipe t1, t2, t3 Time interval 10, 10A Air conditioner (equipment)
12 Compressor 20a, 20b, 20c, 20p, 20q Operation data detection unit 30 First storage unit 40 Abnormality detection unit 50 Second storage unit 60 Selection unit 100 Operation data collection device

Claims (5)

An operation data detection unit (20a, 20b,...) That detects operation data related to the operation state of the device (10) having a refrigeration cycle that is controlled via communication;
A first storage unit (30) for storing the operation data for each first time interval (t1);
An abnormality detection unit (40) for detecting an operation abnormality of the device;
When a non-volatile storage medium is employed and the operation abnormality is a pressure abnormality, the operation data is stored every second time interval (t2) equal to or greater than the first time interval, and the operation abnormality is a communication abnormality. A second storage unit (50) for storing the operation data for each third time interval (t3) longer than the second time interval.
Operation data collection device (100). The operation data includes first operation data related to the pressure of the refrigeration cycle, and second operation data related to the control,
A selection unit (60) that selects at least the first operation data when the operation abnormality is the pressure abnormality and further selects at least the second operation data when the operation abnormality is the communication abnormality. Prepared,
The second storage unit (50) stores at least one of the first or second operation data selected by the selection unit.
The operation data collection device (100) according to claim 1. The refrigeration cycle comprises a compressor (12);
The first operation data includes a discharge pipe temperature (Ta) of the compressor, a high pressure side pressure (Pa) of the compressor, a low pressure side pressure (Pb) of the compressor, a driving current of the compressor ( Ia) at least one of
The second operation data has an operation frequency (Fa) of the compressor.
The operation data collection device (100) according to claim 2. The selection unit (60)
When the operation abnormality is the pressure abnormality, the first operation data at least every second time interval (t2) is selected from the operation data stored in the first storage unit (30). Output
When the operation abnormality is the communication abnormality, the operation data stored in the first storage unit is selected and output at least the second operation data at every third time interval (t3). And
The second storage unit (60) stores at least one of the first operation data output by the selection unit and the second operation data output by the selection unit.
The operation data collection device (100) according to claim 2 or claim 3. The selection unit (60) selects and outputs the operation data for each first time interval (t1),
The first storage unit (30) stores the detection result selected by the selection unit.
The driving | operation data collection apparatus (100) in any one of Claims 1 thru | or 4.

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