CN106403168B - Fault diagnosis system and method for air-conditioning system - Google Patents

Fault diagnosis system and method for air-conditioning system Download PDF

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Publication number
CN106403168B
CN106403168B CN201610801523.5A CN201610801523A CN106403168B CN 106403168 B CN106403168 B CN 106403168B CN 201610801523 A CN201610801523 A CN 201610801523A CN 106403168 B CN106403168 B CN 106403168B
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Prior art keywords
operation data
data
air
host computer
conditioning system
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CN106403168A (en
Inventor
贺斌
梁涛
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Meitong Energy Technology (Chongqing) Co.,Ltd.
Chongqing Midea General Refrigeration Equipment Co Ltd
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Chongqing Midea General Refrigeration Equipment Co Ltd
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays

Abstract

The invention discloses a kind of fault diagnosis systems and method for air-conditioning system, the system comprises memory module, data acquisition module and host computers, the data acquisition module is communicated with the air-conditioning system, and the data acquisition module is communicated with the host computer, wherein, the data acquisition module is used to obtain the operation data of the air-conditioning system and stores the operation data to the memory module, and the operation data that the memory module stores is sent to the host computer；The host computer is analyzed and processed to carry out fault diagnosis the operation data of memory module storage after receiving the operation data that the memory module stores.Thus, the independent ground partial data that is not affected by other factors continuously can be carried out to air-conditioning system such as central air-conditioning mainframe scene to acquire and record, and it is quickly diagnosed fault, consequently facilitating generating strategy to solve the problems, such as, the high efficiency of maintenance and the experience of user are improved, guarantees product public praise.

Description

Fault diagnosis system and method for air-conditioning system
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of fault diagnosis system and one kind for air-conditioning system Method for diagnosing faults for air-conditioning system.
Background technique
No matter the operation and maintenance management of large-scale water dispenser seem particularly significant for client or device fabrication commercial city.Phase Unit data are usually monitored by ipc monitor screen in the technology of pass, conventional operation data and alarm can only be recorded.But it is practical In, special application scenarios, the working condition of different situations, unit is likely to occur unconventional failure in the process of running Phenomenon, unconventional phenomenon of the failure have the characteristics that generation under specified conditions, discontinuous, hardly possible tracking, bad positioning.Host computer prison Control screen is unable to monitor unconventional phenomenon of the failure, leads to be difficult to find within the limited time under site environment reason solution and asks , after sale in O&M, once there is engineer and repeatedly rushes towards scene, and cannot but reappear the phenomenon that is out of order, and can make quality after sale in this way in topic It reduces, poor user experience, product public praise decline.
The relevant technologies also propose it is a kind of the method that Cloud Server is remotely monitored is uploaded data to using network, still, This method is limited to the stability of network, if network goes wrong, monitoring system is at a standstill.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention One purpose is to propose that a kind of fault diagnosis system for air-conditioning system, the system are able to carry out reliable, independent number According to record, quick fault diagnosis is realized.
It is another object of the present invention to propose a kind of method for diagnosing faults for air-conditioning system.
In order to achieve the above objectives, one aspect of the present invention embodiment proposes a kind of fault diagnosis system for air-conditioning system System, including memory module, data acquisition module and host computer, the data acquisition module are communicated with the air-conditioning system, And the data acquisition module is communicated with the host computer, wherein the data acquisition module is for obtaining the air-conditioning The operation data of system simultaneously stores the operation data to the memory module, and the operation that the memory module is stored Data are sent to the host computer；The host computer receives after the operation data of memory module storage to the storage mould The operation data of block storage is analyzed and processed to carry out fault diagnosis.
The fault diagnosis system for air-conditioning system proposed according to embodiments of the present invention, data acquisition module obtain air-conditioning The operation data of system simultaneously stores operation data to memory module, and the operation data that memory module stores is sent to Position machine, host computer are analyzed and processed the operation data of memory module storage after receiving the operation data that memory module stores To carry out fault diagnosis.The system can carry out air-conditioning system such as central air-conditioning mainframe scene independent, continuous as a result, , be not affected by other factors ground partial data acquisition and record, and quickly diagnosed fault, consequently facilitating generating strategy To solve the problems, such as, the high efficiency of maintenance and the experience of user are improved, while guaranteeing product public praise.
According to one embodiment of present invention, the data acquisition module includes: the first communication unit, first communication Unit with the air-conditioning system for being communicated；Second communication unit, second communication unit are used for and the host computer It is communicated；Processor, the processor are connected with first communication unit and second communication unit, the processor For obtaining the operation data of the air-conditioning system by first communication unit and storing the operation data to described Memory module, and the operation data that the memory module stores is sent to by the host computer by second communication unit； Power supply chip, the power supply chip are used to be powered for the processor.
According to one embodiment of present invention, the data acquisition module further include: clock unit, the clock unit are used In providing synchronised clock for the data acquisition module；State indication unit, the state indication unit are used to indicate the number According to the working condition of acquisition module.
According to one embodiment of present invention, the memory module stores the operation data with TXT text formatting.
According to one embodiment of present invention, before the data acquisition module is worked, the host computer is also used to Parameter configuration is carried out to the data acquisition module.
According to one embodiment of present invention, the data acquisition module stores the memory module according to default specification Operation data be packaged to generate operation data message, and the operation data message is sent to the host computer, institute Host computer is stated to parse the operation data message according to the corresponding default specification to obtain the memory module and deposit The operation data of storage.
According to one embodiment of present invention, the operation data that the host computer is also used to store the memory module by It is stored in database according to timestamps ordering, and is classified to the operation data of deposit database according to parameter type, and according to The corresponding operation data of every kind of parameter type generates operation curve, to carry out fault diagnosis according to the operation curve.
According to one embodiment of present invention, the host computer is also used to obtain the corresponding timestamp in fault point, and according to The corresponding timestamp in the fault point generates fault time section, and to extract the fault time section from the database corresponding Operation data, and fault diagnosis is carried out according to the corresponding operation data of fault time section.
According to one embodiment of present invention, the host computer be further used for obtain fault point parameter type, and according to The corresponding operation data of the fault point parameter type generates failure operation curve in fault time section, is examined with carrying out failure It is disconnected.
According to one embodiment of present invention, the host computer is further used for, obtain fault point parameter type and with institute The associated parameter type of fault point parameter type is stated, and associated according to the fault point parameter type in the fault time section The corresponding operation data of parameter type carries out fault diagnosis.
According to one embodiment of present invention, the host computer is also used to carry out parsing it to the operation data message It is preceding that first time verification is carried out to the operation data message according to the corresponding default specification, and first time is verified successful The operation data message carries out CRC check, and according to the corresponding default specification to the CRC check successfully operation Data message is parsed.
In order to achieve the above objectives, a kind of fault diagnosis side for air-conditioning system that another aspect of the present invention embodiment proposes Method, comprising the following steps: the data acquisition module with the air-conditioning system by being communicated to obtain the air-conditioning system Operation data, and the operation data is stored to the memory module of the data acquisition module；The data acquisition module The operation data that the memory module stores is sent to the host computer；The host computer by with the data acquisition module It is communicated to obtain the operation data of the memory module storage, and the operation data of memory module storage is divided Analysis processing is to carry out fault diagnosis.
The method for diagnosing faults for air-conditioning system proposed according to embodiments of the present invention, data acquisition module obtain air-conditioning The operation data of system simultaneously stores operation data to memory module, and the operation data that memory module stores is sent to Position machine, host computer are analyzed and processed the operation data of memory module storage after receiving the operation data that memory module stores To carry out fault diagnosis.This method can carry out air-conditioning system such as central air-conditioning mainframe scene independent, continuous as a result, , be not affected by other factors ground partial data acquisition and record, and quickly diagnosed fault, consequently facilitating generating strategy To solve the problems, such as, the high efficiency of maintenance and the experience of user are improved, while guaranteeing product public praise.
According to one embodiment of present invention, the memory module stores the operation data with TXT text formatting.
According to one embodiment of present invention, the method for diagnosing faults for air-conditioning system further include: described Before data acquisition module is worked, the host computer carries out parameter configuration to the data acquisition module.
According to one embodiment of present invention, the operation data of the memory module storage is obtained, comprising: the data are adopted Collection module is packaged to generate operation data message according to the operation data that default specification stores the memory module, and will The operation data message is sent to the host computer；The host computer is according to the corresponding default specification to the operation number It is parsed according to message to obtain the operation data of the memory module storage.
According to one embodiment of present invention, the operation data of memory module storage is analyzed and processed to carry out Fault diagnosis, comprising: the operation data that the host computer stores the memory module is stored in database according to timestamps ordering, And classify to the operation data of deposit database according to parameter type；It is raw according to the corresponding operation data of every kind of parameter type At operation curve, to carry out fault diagnosis according to the operation curve.
According to one embodiment of present invention, the operation data of memory module storage is analyzed and processed to carry out Fault diagnosis, further includes: the host computer obtains the corresponding timestamp in fault point, and according to the corresponding timestamp in the fault point Generate fault time section；The corresponding operation data of the fault time section is extracted from the database, and according to the failure Period, corresponding operation data carried out fault diagnosis.
According to one embodiment of present invention, fault diagnosis is carried out according to the corresponding operation data of the fault time section, It include: acquisition fault point parameter type, and according to the corresponding operation number of fault point parameter type described in the fault time section According to failure operation curve is generated, to carry out fault diagnosis.
According to one embodiment of present invention, fault diagnosis is carried out according to the corresponding operation data of the fault time section, Include: the host computer obtain fault point parameter type and with the associated parameter type of fault point parameter type；According to institute It states the corresponding operation data of the associated parameter type of fault point parameter type in fault time section and carries out fault diagnosis.
According to one embodiment of present invention, the host computer is before parsing the operation data message, institute State method further include: first time verification is carried out to the operation data message according to the corresponding default specification；To for the first time Successfully the operation data message carries out CRC check for verification；According to the corresponding default specification institute successful to CRC check Operation data message is stated to be parsed.
Detailed description of the invention
Fig. 1 is the block diagram of the fault diagnosis system according to an embodiment of the present invention for air-conditioning system；
Fig. 2 is the block diagram of the fault diagnosis system according to an embodiment of the invention for air-conditioning system；
Fig. 3 is the schematic diagram of the terminals of data acquisition module according to an embodiment of the invention；
Fig. 4 is the side view of data acquisition module according to an embodiment of the invention；
Fig. 5 is the flow chart of the method for diagnosing faults according to an embodiment of the present invention for air-conditioning system；
Fig. 6 is the flow chart of the method for diagnosing faults according to an embodiment of the invention for air-conditioning system；And
Fig. 7 is the flow chart of the method for diagnosing faults in accordance with another embodiment of the present invention for air-conditioning system.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings come describe the embodiment of the present invention proposition the fault diagnosis system and method for air-conditioning system.
Fig. 1 is the block diagram of the fault diagnosis system according to an embodiment of the present invention for air-conditioning system.Such as Fig. 1 institute Show, the fault diagnosis system for air-conditioning system includes memory module 40, data acquisition module 10 and host computer 20, data acquisition Module 10 is communicated with air-conditioning system 30, and data acquisition module 10 is communicated with host computer 20.Specifically, data acquire Module 10 can be connected to carry out RS485 communication with air-conditioning system 30, and data acquisition module 10 can also be connected with host computer 20 To carry out RS232 communication.
Wherein, data acquisition module 10 is used to obtain the operation data of air-conditioning system 30 and stores operation data to storage Module 40, and the operation data that memory module 40 stores is sent to host computer 20.Specifically, the operation number of air-conditioning system 30 According to may include condenser entry/exit mouth temperature, condenser entry/exit mouth pressure, throttle valve inlet pressure, Compressor Discharge Pressure etc. ginseng Numerical value.Also, corresponding operational parameter value can be acquired by the way that the sensor of corresponding collection point is arranged in, such as can be existed by setting The temperature sensor of condenser inlet acquires condenser inlet temperature.
That is, different collection points is arranged in air-conditioning system 30 to acquire different operational parameter values, in air-conditioning In the operational process of for example middle central air-conditioning scene unit of system 30, data acquisition module 10 can be according to actual needs according to default Frequency acquisition acquires the operational parameter value of each collection point, and then obtains the operation data of air-conditioning system 30.Data acquire as a result, The operation data progress that module 10 is capable of independent centering central air-conditioning scene unit completely collects and records in memory module 40.
Host computer 20 receive memory module 40 storage operation data after to memory module 40 store operation data into Row analysis processing is to carry out fault diagnosis.
That is, when needing to carry out data analysis, the operation data i.e. air-conditioning system that memory module 40 can be stored 30 history data is imported into host computer 20, host computer 20 operation data of importing can be analyzed and processed with into Row fault diagnosis.
Thereby, it is possible to monitor unconventional phenomenon of the failure, facilitate engineer and be quickly found out reason to solve the problems, such as, improve The high efficiency of maintenance and the experience of user, while guaranteeing product public praise.Moreover, it is also possible to prevent Server remote monitoring by It is limited to the stability of network, is easy the problem of paralysis.
Memory module 40 is the storage device of data record, and the partial data of 30 real time execution of air-conditioning system can be stored in storage Module 40.Specifically, memory module 40 can establish file with preset storage time interval, and using start time point as text The storage of part name.Also, primary by the test default interval 5S acquisition operation data, the memory module 40 of 8G memory, which can store 1 year, to be had Remaining data volume, 40 data of memory module, which can be defaulted after being filled with from file initial position, carries out covering storage.
In one embodiment of the invention, memory module 40 can be SD card.
A specific example according to the present invention, memory module 40 can store operation data with TXT text formatting.Namely It says, the partial data of 30 real time execution of air-conditioning system is stored in memory module 40 with TXT text formatting.Certainly, memory module 40 can For example WORD or EXCEL format stores operation data in other formats.It should be understood that host computer 20 can be according to different lattice Formula calls different programs.
In one embodiment of the invention, as shown in Fig. 2, memory module 40 can with data acquisition module 10 is integrated sets It sets.It specifically, as shown in figure 4, can be in the external setting memory card slot 41 of data acquisition module 10 to be used to place storage mould Block 40.Alternatively, memory module 40 may also be arranged in electric cabinet.
According to one embodiment of present invention, as shown in Fig. 2, data acquisition module 10 include: the first communication unit 102, Processor 103, the second communication unit 104 and power supply chip 105.
Wherein, the first communication unit 102 with air-conditioning system 30 for being communicated, and in other words, the first communication unit 102 is number According to the data communication module when work of acquisition module 10 with air-conditioning system 30.Specifically, as Figure 2-3, the second communication unit 102 can be connected by the first communication interface J1 with air-conditioning system 30, more specifically, the first communication unit 40 can communicate for RS485 Module, the first communication interface J1 can be RS485 interface, to realize between data acquisition module 10 and air-conditioning system 30 RS485 communication.
Second communication unit 104 with host computer 20 for being communicated, and in other words, the second communication unit 104 is data acquisition Data communication module when the data export that module 10 stores memory module 40 with host computer 20.Specifically, such as Fig. 2-3 institute Show, the second communication unit 104 can be connected by the second communication interface J2 with host computer 20, more specifically, the second communication unit 104 It can be RS232 communication module, the second communication interface J2 can be RS232 interface, to realize data acquisition module 10 and host computer RS232 communication between 20.
Processor 103 is connected with the first communication unit 102, and processor 103 is used to obtain sky by the first communication unit 102 The operation data of adjusting system 30 simultaneously stores operation data to memory module 40, and will store mould by the second communication unit 104 The operation data that block 40 stores is sent to host computer 20.
Power supply chip 105 is used to be powered for processor 103.Specifically, power supply chip 105 is data acquisition module 10 There is provided DC power supply, wherein external power supply can be the power supply of data acquisition module 10, power supply by power interface J3 shown in Fig. 3 The input terminal of chip 105 can be connected with power interface J3, and the input terminal of power supply chip 105 can be connected with processor 103, power supply core Piece 105 is supplied to processor 103 after carrying out transformation, steady pressure treatment to the supply voltage that power interface J3 is inputted.For example, data are adopted Integrate the power supply power supply range of module 10 as DC 6V~36V, is handled by 5V direct-current power supply exportable after power supply chip 105 Device 103.
Further, as shown in Fig. 2, data acquisition module 10 further include: clock unit 106 and state indication unit 107.
Wherein, clock unit 106 is used to provide synchronised clock for data acquisition module 10.Specifically, clock unit 106 Data time can be provided for acquisition data and record point, to guarantee system clock accuracy, to guarantee the accurate of data collection point Property, convenient for later data analysis and fault diagnosis.More specifically, clock unit 106 can be powered by button cell.
State indication unit 107 is used to indicate the working condition of data acquisition module 10.Specifically, state indication unit 107 provide working status indication for data acquisition module, as shown in figure 4, state indication unit 107 may include instruction power supply status Power supply indicator 71 and instruction operating condition status indicator lamp 72, for example, can be indicated when power supply indicator 71 is always on Power supply power supply is normal, when status indicator lamp 72 is always on can indicating module lack such as SD card of memory module 40, status indicator lamp 72 With can 10 normal operation of designation date acquisition module when one second frequency scintillation.
In addition, as shown in Fig. 2, data acquisition module 10 further include: phototube coupling unit 108, phototube coupling unit 108 connect It connects between the first communication unit 102 and processor 103, is additionally attached between the second communication unit 104 and processor 103.Light Unit 108 is electrically isolated for data acquisition module 10 to be isolated with external input/output, thus improve data integrity with Protect interconnection equipment.
The working principle of host computer 20 is described in detail below.
According to one embodiment of present invention, before data acquisition module 10 is worked, host computer 20 is also used to logarithm Parameter configuration is carried out according to acquisition module 10.That is, host computer 20 can work data acquisition module 10 before parameter Configuration, wherein parameter configuration when may include data command, equipment school, data memory gap, data memory format, number before working According to timestamp.The second communication unit 104 also carries out parameter by the software that host computer 20 is installed for data acquisition module 10 as a result, The communication module of configuration.
Specifically, mountable data parse diagnostic software in host computer 20, can when 10 configuration parameter of data acquisition module First host computer 20 is connect using 232 Serial Port Lines with data acquisition module 10, then recalls data and parse the parameter of diagnostic software and match Set plug-in unit, serial port, baud rate, stop position, the check bit set up serial ports, with establish host computer 20 and data acquisition module 10 it Between communication.After communicating successfully, data command, equipment further can be carried out to data acquisition module 10 in parameter configuration plug-in unit When school, the parameter configurations such as data memory gap, data memory format, data time stamp.
Wherein, data parsing diagnostic software can be according to the data command of default specification automatically generated data acquisition module 10. The flexible configuration that data command can be increased newly according to demand in software, deleted, be modified.
According to one embodiment of present invention, the fortune that data acquisition module 10 stores memory module 40 according to default specification Row data are packaged to generate operation data message, and operation data message are sent to host computer 20,20 basis of host computer Corresponding default specification parses operation data message to obtain the operation data of the storage of memory module 40.
Further, host computer 20 is also used to before parsing to operation data message according to corresponding default specification First time verification is carried out to operation data message, and carries out CRC check to successful operation data message is verified for the first time, and The successful operation data message of CRC check is parsed according to corresponding default specification.
It should be noted that the operation data that memory module 40 stores may include a plurality of data, every data may include more A operational parameter value.During operation data is imported host computer 20, every data can be beaten according to default specification Packet can be one group according to default specification with N single data message and continuously transmit to upper to generate single data message Machine 20 namely host computer 20 can acquire N single data message every time.Wherein, N is the integer greater than 1, and the numerical value of N can lead to Default specification configuration is crossed, N is preferably 10.
Specifically, the checking procedure of host computer 20 is as follows:
When host computer 20 is monitored from the data file that memory module 40 imports, host computer 20 first determines whether data file Format whether be default file format such as TXT format, if so, host computer 20 then receive memory module 40 transmission operation Data message, if it is not, then continuing the data file for monitoring whether to import from memory module 40.
As previously mentioned, operation data message can be sent to host computer 20 in such a way that N single data message is one group, and And according to the configuration of default specification, after the item number for providing every group of data message, for two groups of data messages for distinguishing arbitrary neighborhood, The last item single data message of every group of data message can be retransmited to once i.e. every group of the last item single data message It continuously transmits twice.
Host computer 20 can remove the timestamp of corresponding single data message after receiving every single data message, and The single data message of removal timestamp is monitored, and is monitoring that two adjacent single data messages are identical When, then it verifies whether the two identical single data messages meet default specification configuration, i.e., whether attaches most importance to what recurrence was sent The last item single data message.
If the two identical single data messages are unsatisfactory for default specification configuration, failure is verified, and reject Unqualified data, unqualified data are N single data message for verifying the group of failure.
If the two identical single data messages meet default specification configuration, success is verified, and further Whether the byte number for verifying every single data message meets default specification configuration, if it is satisfied, then verifying successfully, i.e., for the first time It verifies successfully, if conditions are not met, then verifying failure, and rejects unqualified data, unqualified data is the single for verifying failure The N single data message organized where data message.
It is right after first time verifies successfully, it can be according to default specification successively to N single datagram of every group of data message Text is parsed, and carries out CRC check to corresponding single data message when parsing every single data message, and judge Whether CRC check is qualified, if qualified, CRC check success continues to parse next article of single data message until having parsed the N single data message, if unqualified, unqualified data i.e. this bar single data message is rejected in CRC check failure, and Continue to parse next article of single data message until having parsed the N articles single data message.
The verification to operation data message, parsing are completed as a result,.In some embodiments of the invention, data can be passed through Parsing diagnostic software parses operation data message, in data parsing, the operation data that copy memory module 40 stores, And it being stored in the file management system of host computer 20, and then import data and parse diagnostic software, data parse diagnostic software can be according to The mode of front carries out data check, parsing automatically.
Further, according to one embodiment of present invention, host computer 20 is also used to the operation for storing memory module 40 Data are stored in database according to timestamps ordering, and classify to the operation data of deposit database according to parameter type, with And operation curve is generated according to the corresponding operation data of every kind of parameter type, to carry out fault diagnosis according to operation curve.
Specifically, host computer 20 is after the operation data message sent to data acquisition module 10 is verified, parsed, Operation data after verification successfully parsing is stored in database.More specifically, can be from the successful every single datagram of verification Multiple operational parameter values, such as condenser entry/exit mouth temperature, condenser entry/exit mouth pressure, throttling valve inlet pressure are parsed in text Power, Compressor Discharge Pressure, and the operational parameter value parsed is parsed according to timestamps ordering deposit database such as data The SQLite database of diagnostic software restores whole fortune of the air-conditioning system 30 in recording period out on the time line as a result, Row parameter value.
Also, the operational parameter value for being stored in database can classify according to parameter type, and engineer can set as needed The parameter type for needing to show operation curve, such as condenser inlet temperature are set, host computer 20, can after receiving setting instruction Operational parameter value of the relevant parameter type in recording period is recalled from database, and generates operation curve, such as recall cold Operational parameter value of the condenser inlet temperature in recording period, and condenser inlet temperature is generated according to the operational parameter value recalled Spend operation curve.And then operation curve can be shown by host computer 20 by display screen.
Host computer 20 produces the corresponding operation curve of many kinds of parameters type as a result, and comprehensive many kinds of parameters type is corresponding Operation curve can carry out rapid failure diagnosis.Also, memory module 40 can record whole operating parameters of air-conditioning system 30, from And it is able to record unconventional phenomenon of the failure, facilitate engineer and be quickly found out reason to solve the problems, such as, improves the efficient of maintenance The experience of property and user, while guaranteeing product public praise.Moreover, it is also possible to which preventing Server remote monitoring is limited to network Stability is easy the problem of paralysis.
In addition, in one embodiment of the invention, it can be by data base querying air-conditioning system 30 in recording period Whole operation datas.
Further, according to one embodiment of present invention, host computer 20 is also used to obtain the corresponding timestamp in fault point, And fault time section is generated according to the corresponding timestamp in fault point, and the corresponding operation of fault time section is extracted from database Data, and fault diagnosis is carried out according to the corresponding operation data of fault time section.
Also, host computer 20 is further used for obtaining fault point parameter type, and is joined according to fault time section internal fault point The corresponding operation data of several classes of types generates failure operation curve, to carry out fault diagnosis.
Also, host computer 20 is further used for, obtain fault point parameter type and with the associated ginseng of fault point parameter type Several classes of types, and failure is carried out according to the corresponding operation data of the fault time section associated parameter type of internal fault point parameter type and is examined It is disconnected.
Specifically, by checking that operation data curve can find out fault point, such as engineer checks the fortune of the first parameter The data exception at the first moment is found when row data and curves, then first parameter at the first moment is fault point.
After finding fault point, corresponding timestamp can be obtained by database, and according to the fault point corresponding time Stamp generates fault time section, such as using the front and back half an hour of fault point timestamp as fault time section, then from database The operational parameter value for extracting the front and back half an hour of fault point timestamp is joined according to the operation of the front and back half an hour of fault point timestamp Numerical value can carry out fault diagnosis.Wherein, the interval time before and after the timestamp of fault point can be arranged according to actual needs.
Specifically, parameter type such as the first parameter of fault point according to the fault point found, can be arranged in engineer.On It, can be according to the operating parameter of the first parameter of front and back half an hour of fault point timestamp after position machine 20 receives fault point setting instruction Value generates failure operation curve, i.e., before and after the timestamp of fault point in half an hour the first parameter operation data curve, in turn Failure operation curve can be shown by host computer 20 by display screen.Engineer is by observing the failure operation curve as a result, Fault diagnosis can be carried out to air-conditioning system 30.
Moreover, the relevant parameter of the first parameter, such as the second parameter, third parameter, the 4th ginseng can also be arranged in engineer Number ..., M parameter, and the relevance of the second parameter and the first parameter is greater than the relevance of third parameter and the first parameter, the The relevance of three parameters and the first parameter is greater than the relevance of the 4th parameter and the first parameter, and by parity of reasoning, with the first parameter Relevance gradually weakens.
Host computer 20 can obtain above-mentioned relevant parameter according to the operational parameter value of the front and back half an hour of fault point timestamp Operational parameter value, and judge whether the operational parameter value of each relevant parameter exceeds corresponding preset limited range, and according to Judging result carries out fault diagnosis, wherein can preferentially judge the stronger relevant parameter of relevance.
That is, first judging whether the operational parameter value of the second parameter exceeds the first preset limited range, if the fault point time Operational parameter value in the front and back half an hour of stamp beyond the first preset limited range is more than or equal to Q, then judges air-conditioning system 30 Failure and the second relating to parameters, and export the first diagnostic result；If exceeding first in the front and back half an hour of fault point timestamp The operational parameter value of preset limited range is less than Q, then judges that the failure of air-conditioning system 30 is unrelated with the second parameter, continue to third Parameter is judged.Wherein, Q is positive integer, such as is preferably 3.
Similarly, then judge whether the operational parameter value of third parameter exceeds the second preset limited range, if when fault point Between in front and back half an hour for stabbing the operational parameter value beyond the second preset limited range be more than or equal to Q, then judge air-conditioning system 30 Failure and third relating to parameters, and export second opinion result；If beyond the in front and back half an hour of fault point timestamp The operational parameter value of two preset limited ranges is less than Q, then judges that the failure of air-conditioning system 30 is unrelated with third parameter, continues to the Four parameters are judged.
Further judge whether the operational parameter value of the 4th parameter exceeds third preset limited range, if the fault point time Operational parameter value in the front and back half an hour of stamp beyond third preset limited range is more than or equal to Q, then judges air-conditioning system 30 Failure and the 4th relating to parameters, and export third diagnostic result；If exceeding third in the front and back half an hour of fault point timestamp The operational parameter value of preset limited range is less than Q, then judges that the failure of air-conditioning system 30 is unrelated with the 4th parameter, continue to the 5th Parameter is judged.
In this way, judging whether the operational parameter value of N parameter exceeds N-1 preset limit model up to determining N parameter It encloses, if the operational parameter value in the front and back half an hour of fault point timestamp beyond N-1 preset limited range is more than or equal to Q, Then judge the failure and N relating to parameters of air-conditioning system 30, and exports N-1 diagnostic result；If before the timestamp of fault point Operational parameter value in half an hour after beyond N-1 preset limited range is less than Q, then judges the failure and N of air-conditioning system 30 Parameter is unrelated, by manually analyzing the corresponding failure operation curve of each parameter type, to carry out fault diagnosis.
Fault diagnosis can be carried out by the operation data of deposit database as a result, wherein data parsing diagnostic software can press Preliminary automatic diagnosis is carried out according to aforesaid way, and can carry out curve displaying to operation data, in order to manual analysis.
As described above, data parsing diagnostic software can work data acquisition module 10 before parameter configuration, and can The data recorded to memory module 40 parse.I.e. data parsing diagnostic software can to memory module 40 TXT text storage Data are parsed.It is verified in parsing by default reduction algorithm to control the correctness of data, and will be verified successfully The self contained data base of data deposit data parsing diagnostic software afterwards, recovers air-conditioning system on the time line as a result, and is recording Operational parameter value in period.Also, according to actual demand, data parsing diagnostic software produces and shows air-conditioning system 30 operation curve can quickly carry out fault diagnosis.
The fault diagnosis system of the embodiment of the present invention can be applied to the different application scene of large-scale water dispenser, different works as a result, Under the conditions of condition, all the period of time unit data record can be independently carried out, it is unattended and do not influenced by other party factor.Also, the event Hinder diagnostic system configuration flexibly, scalability is strong, can flexible configuration data command, and the data acquisition that subsequent access is new according to demand When module 10, simple normal data order configuration need to be only carried out, does not have to modify any other condition.In addition, being opened by specific The data of hair parse diagnostic software, quickly can search and be diagnosed to be operation on the basis of realizing totally according to monitoring and inquiry Unconventional failure problems in the process, are saved the manpower of O&M, material resources and time, improve O&M response speed, are then improved and are used Family experience.
The present invention also proposes a kind of method for diagnosing faults for air-conditioning system.
Fig. 5 is the flow chart of the method for diagnosing faults according to an embodiment of the present invention for air-conditioning system.As shown in figure 5, This for air-conditioning system method for diagnosing faults the following steps are included:
S1: data acquisition module obtains the operation data of air-conditioning system by being communicated with air-conditioning system, and will fortune Row data are stored to the memory module of data acquisition module.
Wherein, data acquisition module can be connected to carry out RS485 communication with air-conditioning system.
S2: the operation data that memory module stores is sent to host computer by data acquisition module.
Wherein, data acquisition module can also be connected to carry out RS232 communication with host computer.
Specifically, the operation data of air-conditioning system may include condenser entry/exit mouth temperature, condenser entry/exit mouth pressure, section Flow the parameter values such as valve inlet pressure, Compressor Discharge Pressure.Also, phase can be acquired by the way that the sensor of corresponding collection point is arranged in The operational parameter value answered, such as condenser inlet temperature can be acquired by the way that the temperature sensor of condenser inlet is arranged in.
That is, different collection points is arranged within air-conditioning systems to acquire different operational parameter values, in air-conditioning system In the operational process of for example middle central air-conditioning scene unit of system, data acquisition module can be according to actual needs according to default acquisition frequency Rate acquires the operational parameter value of each collection point, and then obtains the operation data of air-conditioning system.Data acquisition module can as a result, The operation data progress of independent centering central air-conditioning scene unit completely collects and records in memory module.
S3: host computer obtains the operation data of memory module storage by being communicated with data acquisition module, and right The operation data of memory module storage is analyzed and processed to carry out fault diagnosis.
That is, when needing to carry out data analysis, it can be by operation data, that is, air-conditioning system of memory module storage History data is imported into host computer, and host computer can be analyzed and processed the operation data of importing to carry out failure and examine It is disconnected.
Thereby, it is possible to monitor unconventional phenomenon of the failure, facilitate engineer and be quickly found out reason to solve the problems, such as, improve The high efficiency of maintenance and the experience of user, while guaranteeing product public praise.Moreover, it is also possible to prevent Server remote monitoring by It is limited to the stability of network, is easy the problem of paralysis.
Memory module is the storage device of data record, and the partial data of air-conditioning system real time execution can be stored in storage mould Block.Specifically, memory module can establish file with preset storage time interval, and deposit using start time point as filename It puts.Also, primary by the test default interval 5S acquisition operation data, the memory module of 8G memory can store 1 year data having a surplus Amount, memory module data, which can be defaulted after being filled with from file initial position, carries out covering storage.
In one embodiment of the invention, memory module can be SD card.
A specific example according to the present invention, memory module can store operation data with TXT text formatting.Namely It says, the partial data of air-conditioning system real time execution is stored in memory module with TXT text formatting.Certainly, memory module can be with other Format such as WORD or EXCEL format stores operation data.It should be understood that host computer can call not according to different formats Same program.
In one embodiment of the invention, memory module can be integrally disposed with data acquisition module.It specifically, can be in number According to the external setting memory card slot of acquisition module for placing memory module.Alternatively, memory module may also be arranged on it is automatically controlled In case.
The working principle of host computer is described in detail below.
According to one embodiment of present invention, for the method for diagnosing faults of air-conditioning system further include: in data acquisition module Before block is worked, host computer carries out parameter configuration to data acquisition module.
That is, host computer can work data acquisition module before parameter configuration, wherein work before parameter match It sets when may include data command, equipment school, data memory gap, data memory format, data time stamp.
Specifically, mountable data parse diagnostic software in host computer, when data acquisition module configuration parameter, can first make Host computer is connect with data acquisition module with 232 Serial Port Lines, then recalls the parameter configuration plug-in unit of data parsing diagnostic software, if Serial port, baud rate, stop position, the check bit of serial ports are determined, to establish the communication between host computer and data acquisition module.Communication It, can be in parameter configuration plug-in unit further between when data acquisition module progress data command, equipment school, data storage after success Every, parameter configurations such as data memory format, data time stamp.
Wherein, data parsing diagnostic software can be according to the data command of default specification automatically generated data acquisition module.Number The flexible configuration that can be increased newly according to demand, deleted, modified in software according to order.
According to one embodiment of present invention, the operation data of memory module storage is obtained, comprising: data acquisition module root tuber It is packaged according to the operation data that default specification stores memory module to generate operation data message, and by operation data message It is sent to host computer；Host computer parses operation data message according to corresponding default specification to obtain memory module storage Operation data.
Further, host computer is before parsing operation data message, method further include: according to corresponding default Specification carries out first time verification to operation data message；CRC check is carried out to successful operation data message is verified for the first time；Root The successful operation data message of CRC check is parsed according to corresponding default specification.
Further, according to one embodiment of present invention, the operation data of memory module storage is analyzed and processed To carry out fault diagnosis, comprising: the operation data that host computer stores memory module is stored in database according to timestamps ordering, and Classify to the operation data of deposit database according to parameter type；It is generated according to the corresponding operation data of every kind of parameter type Operation curve, to carry out fault diagnosis according to operation curve.
It should be noted that the operation data of memory module storage may include a plurality of data, every data may include multiple Operational parameter value.By operation data import host computer during, can according to default specification to every data be packaged with Single data message is generated, and can be one group according to default specification with N single data message and continuously transmit to host computer, I.e. host computer can acquire N single data message every time.Wherein, N is the integer greater than 1, and the numerical value of N can be by presetting specification Configuration, N is preferably 10.
Specifically, as shown in fig. 6, the method for diagnosing faults of the embodiment of the present invention the following steps are included:
S101: importing data film.
S102: judge whether the data file imported is TXT text.
If so, thening follow the steps S103；If it is not, then return step S101.
When host computer is monitored from the data file that memory module imports, host computer first determines whether the format of data file It whether is default file format such as TXT format, if so, host computer then receives the operation data message of memory module transmission, If it is not, then continuing the data file for monitoring whether to import from memory module.
S103: removal timestamp.
S104: the identical single data message of adjacent two is monitored.
S105: judge whether two identical single data messages meet default specification configuration.
If so, thening follow the steps S106；If not, thening follow the steps S107.
Whether the byte number of S106: every single data message meets default specification configuration.
If so, thening follow the steps S108；If not, thening follow the steps S107.
S107: unqualified data, return step S104 are rejected.
As previously mentioned, operation data message can be sent to host computer in such a way that N single data message is one group, and It,, can for two groups of data messages for distinguishing arbitrary neighborhood after the item number for providing every group of data message according to the configuration of default specification The last item single data message that the last item single data message of every group of data message retransmits once i.e. every group is connected Supervention is sent twice.
Host computer can remove the timestamp of corresponding single data message after receiving every single data message, and right The single data message of removal timestamp is monitored, and when monitoring that two adjacent single data messages are identical, Then verify whether the two identical single data messages meet default specification configuration, i.e., recurrence of whether attaching most importance to is sent last One single data message.
If the two identical single data messages are unsatisfactory for default specification configuration, failure is verified, and reject Unqualified data, unqualified data are N single data message for verifying the group of failure.
If the two identical single data messages meet default specification configuration, success is verified, and further Whether the byte number for verifying every single data message meets default specification configuration, if it is satisfied, then verifying successfully, i.e., for the first time It verifies successfully, if conditions are not met, then verifying failure, and rejects unqualified data, unqualified data is the single for verifying failure The N single data message organized where data message.
S108: it is successively continuously parsed according to default specification.
S109: judge whether CRC check is qualified.
If so, thening follow the steps S111；If not, thening follow the steps S110.
S110: unqualified data, return step S108 are rejected.
It is right after first time verifies successfully, it can be according to default specification successively to N single datagram of every group of data message Text is parsed, and carries out CRC check to corresponding single data message when parsing every single data message, and judge Whether CRC check is qualified, if qualified, CRC check success continues to parse next article of single data message until having parsed the N single data message, if unqualified, unqualified data i.e. this bar single data message is rejected in CRC check failure, and Continue to parse next article of single data message until having parsed the N articles single data message.
The verification to operation data message, parsing are completed as a result,.In some embodiments of the invention, data can be passed through Parsing diagnostic software parses operation data message, in data parsing, the operation data of copy memory module storage, and It is stored in the file management system of host computer, and then imports data and parses diagnostic software, data parse diagnostic software can be according to front Mode carry out automatically data check, parsing.
S111: operational parameter value is parsed from operation data message.
S112: operational parameter value is stored in database according to timestamps ordering.
Specifically, host computer is after the operation data message sent to data acquisition module is verified, parsed, high-ranking officers Operation data deposit database after testing successfully parsing.More specifically, can be from verification successfully every single data message Parse multiple operational parameter values, for example, condenser entry/exit mouth temperature, condenser entry/exit mouth pressure, throttle valve inlet pressure, Compressor Discharge Pressure, and by the operational parameter value parsed according to such as data parsing diagnosis of timestamps ordering deposit database The SQLite database of software restores whole operating parameters of the air-conditioning system in recording period out on the time line as a result, Value.
S113: setting needs to show the parameter type of operation curve.
S114: generating and shows operation curve.
Specifically, the operational parameter value for being stored in database can classify according to parameter type, and engineer can be as needed The parameter type for needing to show operation curve, such as condenser inlet temperature are set, and host computer, can after receiving setting instruction Operational parameter value of the relevant parameter type in recording period is recalled from database, and generates operation curve, such as recall cold Operational parameter value of the condenser inlet temperature in recording period, and condenser inlet temperature is generated according to the operational parameter value recalled Spend operation curve.And then operation curve can be shown by host computer by display screen.
S115: comprehensive multiple operation curves carry out fault diagnosis.
Specifically, host computer produces the corresponding operation curve of many kinds of parameters type, and comprehensive many kinds of parameters type is corresponding Operation curve can carry out rapid failure diagnosis.Also, memory module can record whole operating parameters of air-conditioning system, so as to Unconventional phenomenon of the failure is enough recorded, facilitates engineer and be quickly found out reason to solve the problems, such as, improve maintenance high efficiency and The experience of user, while guaranteeing product public praise.Moreover, it is also possible to prevent the stabilization that Server remote monitoring is limited to network Property, be easy paralysis the problem of.
In addition, in one embodiment of the invention, it can be by data base querying air-conditioning system in recording period Whole operation datas.
Further, according to one embodiment of present invention, the operation data of memory module storage is analyzed and processed To carry out fault diagnosis, further includes: host computer obtains the corresponding timestamp in fault point, and raw according to the corresponding timestamp in fault point At fault time section；The corresponding operation data of fault time section is extracted from database, and according to the corresponding fortune of fault time section Row data carry out fault diagnosis.
Also, fault diagnosis is carried out according to the corresponding operation data of fault time section, comprising: obtain fault point parameter class Type, and failure operation curve is generated according to the corresponding operation data of fault time section internal fault point parameter type, to carry out failure Diagnosis.
Also, fault diagnosis is carried out according to the corresponding operation data of fault time section, comprising: host computer obtains fault point ginseng Several classes of types and with the associated parameter type of fault point parameter type；According to the fault time section associated ginseng of internal fault point parameter type The corresponding operation data of several classes of types carries out fault diagnosis.
Specifically, as shown in fig. 7, the method for diagnosing faults of another of the invention specific embodiment the following steps are included:
S201: fault point timestamp is searched from database.
S202: the operational parameter value of the front and back half an hour of fault point timestamp is extracted.
Wherein, by checking that operation data curve can find out fault point, such as engineer checks the operation number of the first parameter The data exception at the first moment is found when according to curve, then first parameter at the first moment is fault point.
After finding fault point, corresponding timestamp can be obtained by database, and according to the fault point corresponding time Stamp generates fault time section, such as using the front and back half an hour of fault point timestamp as fault time section, then from database The operational parameter value for extracting the front and back half an hour of fault point timestamp is joined according to the operation of the front and back half an hour of fault point timestamp Numerical value can carry out fault diagnosis.Wherein, the interval time before and after the timestamp of fault point can be arranged according to actual needs.
S203: failure operation curve is generated according to the parameter type of fault point.
Specifically, parameter type such as the first parameter of fault point according to the fault point found, can be arranged in engineer.On It, can be according to the operational parameter value of the first parameter of front and back half an hour of fault point timestamp after position machine receives fault point setting instruction Generate failure operation curve, i.e., before and after the timestamp of fault point in half an hour the first parameter operation data curve, Jin Ershang Failure operation curve can be shown by position machine by display screen.Engineer can be right by observing the failure operation curve as a result, Air-conditioning system carries out fault diagnosis.
S204: whether judgement and the operational parameter value of the second parameter of the first parameter association exceed the first preset limit model It encloses.
If so, thening follow the steps S205；If not, thening follow the steps S206.
S205: the first diagnostic result of output.
S206: whether judgement and the operational parameter value of the third parameter of the first parameter association exceed the second preset limit model It encloses.
If so, thening follow the steps S207；If not, thening follow the steps S208.
S207: output second opinion result.
S208: whether judgement and the operational parameter value of the 4th parameter of the first parameter association exceed third preset limit model It encloses.
If so, thening follow the steps S209；If not, thening follow the steps S210.
S209: output third diagnostic result.
S210: whether judgement and the operational parameter value of the N parameter of the first parameter association exceed N-1 preset limit model It encloses.
If so, thening follow the steps S211；If not, thening follow the steps S212.
S211: output N-1 diagnostic result.
S212: curve manual analysis.
That is, the relevant parameter of the first parameter, such as the second parameter, third parameter, can also be arranged in engineer Four parameters ..., M parameter, and the second parameter and the relevance of the first parameter are greater than being associated with for third parameter and the first parameter Property, the relevance of third parameter and the first parameter is greater than the relevance of the 4th parameter and the first parameter, and by parity of reasoning, with the first ginseng Several relevances gradually weaken.
Host computer can obtain the fortune of above-mentioned relevant parameter according to the operational parameter value of the front and back half an hour of fault point timestamp Row parameter value, and judge whether the operational parameter value of each relevant parameter exceeds corresponding preset limited range, and according to sentencing Disconnected result carries out fault diagnosis, wherein can preferentially judge the stronger relevant parameter of relevance.
That is, first judging whether the operational parameter value of the second parameter exceeds the first preset limited range, if the fault point time Operational parameter value in the front and back half an hour of stamp beyond the first preset limited range is more than or equal to Q, then judges air-conditioning system 30 Failure and the second relating to parameters, and export the first diagnostic result；If exceeding first in the front and back half an hour of fault point timestamp The operational parameter value of preset limited range is less than Q, then judges that the failure of air-conditioning system is unrelated with the second parameter, continues to join third Number is judged.Wherein, Q is positive integer, such as is preferably 3.
Similarly, then judge whether the operational parameter value of third parameter exceeds the second preset limited range, if when fault point Between in front and back half an hour for stabbing the operational parameter value beyond the second preset limited range be more than or equal to Q, then judge air-conditioning system Failure and third relating to parameters, and export second opinion result；If exceeding second in the front and back half an hour of fault point timestamp The operational parameter value of preset limited range is less than Q, then judges that the failure of air-conditioning system is unrelated with third parameter, continues to join to the 4th Number is judged.
Further judge whether the operational parameter value of the 4th parameter exceeds third preset limited range, if the fault point time Operational parameter value in the front and back half an hour of stamp beyond third preset limited range is more than or equal to Q, then judges the event of air-conditioning system Barrier and the 4th relating to parameters, and export third diagnostic result；If pre- beyond third in the front and back half an hour of fault point timestamp The operational parameter value of restriction range is less than Q, then judges that the failure of air-conditioning system is unrelated with the 4th parameter, continue to the 5th parameter Judged.
In this way, judging whether the operational parameter value of N parameter exceeds N-1 preset limit model up to determining N parameter It encloses, if the operational parameter value in the front and back half an hour of fault point timestamp beyond N-1 preset limited range is more than or equal to Q, Then judge the failure and N relating to parameters of air-conditioning system, and exports N-1 diagnostic result；If the front and back of fault point timestamp Operational parameter value in half an hour beyond N-1 preset limited range is less than Q, then judges the failure and N parameter of air-conditioning system It is unrelated, by manually analyzing the corresponding failure operation curve of each parameter type, to carry out fault diagnosis.
Fault diagnosis can be carried out by the operation data of deposit database as a result, wherein data parsing diagnostic software can press Preliminary automatic diagnosis is carried out according to aforesaid way, and can carry out curve displaying to operation data, in order to manual analysis.
As described above, data parsing diagnostic software can work data acquisition module before parameter configuration, and can be right The data of memory module record are parsed.I.e. data parsing diagnostic software can TXT text storing data to memory module into Row parsing.It is verified by default reduction algorithm in parsing to control the correctness of data, and by the number after verifying successfully According to the self contained data base of deposit data parsing diagnostic software, air-conditioning system is recovered on the time line as a result, in recording period Interior operational parameter value.Also, according to actual demand, data parsing diagnostic software produces and shows the operation of air-conditioning system Curve can quickly carry out fault diagnosis.
The fault diagnosis system of the embodiment of the present invention can be applied to the different application scene of large-scale water dispenser, different works as a result, Under the conditions of condition, all the period of time unit data record can be independently carried out, it is unattended and do not influenced by other party factor.Also, the event Hinder diagnostic system configuration flexibly, scalability is strong, can flexible configuration data command, and the data acquisition that subsequent access is new according to demand When module, simple normal data order configuration need to be only carried out, does not have to modify any other condition.In addition, passing through specific development Data parse diagnostic software, quickly can search and be diagnosed to be and ran on the basis of realizing totally according to monitoring and inquiry Unconventional failure problems in journey, are saved the manpower of O&M, material resources and time, are improved O&M response speed, are then improved user Experience.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below " One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, modifies, replacement and variant.

Claims (15)

1. a kind of fault diagnosis system for air-conditioning system, which is characterized in that including memory module, data acquisition module and on Position machine, the data acquisition module communicated with the air-conditioning system, and the data acquisition module and the host computer into Row communication, wherein
The data acquisition module is used to obtain the operation data of the air-conditioning system and stores the operation data to described Memory module, and the operation data that the memory module stores is sent to the host computer；
The host computer receives the operation data stored after the operation data that the memory module stores to the memory module It is analyzed and processed to carry out fault diagnosis；
The data acquisition module includes:
First communication unit, first communication unit with the air-conditioning system for being communicated；
Second communication unit, second communication unit with the host computer for being communicated；
Processor, the processor are connected with first communication unit and second communication unit, and the processor is used for The operation data of the air-conditioning system is obtained by first communication unit and stores the operation data to the storage Module, and the operation data that the memory module stores is sent to by the host computer by second communication unit；
Power supply chip, the power supply chip are used to be powered for the processor, wherein the power supply chip is connect by power supply Mouth is connected with external power supply；
Phototube coupling unit, the phototube coupling unit are connected between first communication unit and the processor, also connect It connects between second communication unit and the processor；
Wherein, the operation data that the host computer is also used to store the memory module is stored in data according to timestamps ordering Library, and classify to the operation data of deposit database according to parameter type, the also corresponding timestamp in acquisition fault point, and root Fault time section is generated according to the corresponding timestamp in the fault point, and to extract the fault time section from the database right The operation data answered, and fault diagnosis is carried out according to the corresponding operation data of the fault time section；
The host computer be also used to obtain fault point parameter type and with the associated parameter type of fault point parameter type, and Failure is carried out according to the corresponding operation data of parameter type associated parameter type in fault point described in the fault time section to examine It is disconnected；
Wherein, the operational parameter value of each collection point of the data collecting module collected, using the operation as the air-conditioning system Data, and when needing to carry out data analysis, the operation data that memory module stores is imported into the host computer.
2. the fault diagnosis system according to claim 1 for air-conditioning system, which is characterized in that the data acquisition module Block further include:
Clock unit, the clock unit are used to provide synchronised clock for the data acquisition module；
State indication unit, the state indication unit are used to indicate the working condition of the data acquisition module.
3. the fault diagnosis system according to claim 1 for air-conditioning system, which is characterized in that the memory module with TXT text formatting stores the operation data.
4. the fault diagnosis system according to claim 1 for air-conditioning system, which is characterized in that acquired in the data Before module is worked, the host computer is also used to carry out parameter configuration to the data acquisition module.
5. the fault diagnosis system of air-conditioning system is used for described in any one of -4 according to claim 1, which is characterized in that described Data acquisition module is packaged according to the operation data that default specification stores the memory module to generate operation data report Text, and the operation data message is sent to the host computer, the host computer is according to the corresponding default specification to institute Operation data message is stated to be parsed to obtain the operation data of the memory module storage.
6. the fault diagnosis system according to claim 5 for air-conditioning system, which is characterized in that the host computer is also used In generating operation curve according to the corresponding operation data of every kind of parameter type, to carry out fault diagnosis according to the operation curve.
7. the fault diagnosis system according to claim 6 for air-conditioning system, which is characterized in that the host computer is into one It walks for obtaining fault point parameter type, and according to the corresponding operation number of fault point parameter type described in the fault time section According to failure operation curve is generated, to carry out fault diagnosis.
8. the fault diagnosis system according to claim 5 for air-conditioning system, which is characterized in that the host computer is also used In before being parsed to the operation data message according to the corresponding default specification to the operation data message into Row verifies for the first time, and verifies the successfully operation data message to first time and carry out CRC check, and according to corresponding institute Stating default specification, successfully the operation data message parses to CRC check.
9. a kind of method for diagnosing faults for air-conditioning system, which comprises the following steps:
Data acquisition module obtains the operation data of the air-conditioning system by being communicated with the air-conditioning system, and by institute Operation data is stated to store to memory module；
The operation data that the memory module stores is sent to host computer by the data acquisition module；
The host computer obtains the operation data of the memory module storage by being communicated with the data acquisition module, And the operation data of memory module storage is analyzed and processed to carry out fault diagnosis；
Wherein, the data acquisition module includes:
First communication unit, first communication unit with the air-conditioning system for being communicated；
Second communication unit, second communication unit with the host computer for being communicated；
Processor, the processor are connected with first communication unit and second communication unit, and the processor is used for The operation data of the air-conditioning system is obtained by first communication unit and stores the operation data to the storage Module, and the operation data that the memory module stores is sent to by the host computer by second communication unit；
Power supply chip, the power supply chip are used to be powered for the processor, wherein the power supply chip is connect by power supply Mouth is connected with external power supply；
Phototube coupling unit, the phototube coupling unit are connected between first communication unit and the processor, also connect It connects between second communication unit and the processor；
Wherein, the operation data of memory module storage is analyzed and processed to carry out fault diagnosis, comprising:
The operation data that the host computer stores the memory module is stored in database according to timestamps ordering, and to deposit number Classify according to the operation data in library according to parameter type, also the corresponding timestamp in acquisition fault point, and according to the fault point Corresponding timestamp generates fault time section, and extracts the corresponding operation number of the fault time section from the database According to, and fault diagnosis is carried out according to the corresponding operation data of the fault time section；
Wherein, fault diagnosis is carried out according to the corresponding operation data of the fault time section, comprising:
Fault point parameter type is obtained, and according to the corresponding operation data of fault point parameter type described in the fault time section Failure operation curve is generated, to carry out fault diagnosis；
Wherein, the operational parameter value of each collection point of the data collecting module collected, using the operation as the air-conditioning system Data, and when needing to carry out data analysis, the operation data that memory module stores is imported into the host computer.
10. the method for diagnosing faults according to claim 9 for air-conditioning system, which is characterized in that the memory module The operation data is stored with TXT text formatting.
11. the method for diagnosing faults according to claim 9 for air-conditioning system, which is characterized in that further include:
Before the data acquisition module is worked, the host computer carries out parameter configuration to the data acquisition module.
12. being used for the method for diagnosing faults of air-conditioning system according to any one of claim 9-11, which is characterized in that obtain Take the operation data of the memory module storage, comprising:
The data acquisition module is packaged according to the operation data that default specification stores the memory module to generate fortune Row data message, and the operation data message is sent to the host computer；
The host computer parses to obtain the storage operation data message according to the corresponding default specification The operation data of module storage.
13. the method for diagnosing faults according to claim 12 for air-conditioning system, which is characterized in that the storage mould The operation data of block storage is analyzed and processed to carry out fault diagnosis, further includes:
Operation curve is generated according to the corresponding operation data of every kind of parameter type, is examined with carrying out failure according to the operation curve It is disconnected.
14. the method for diagnosing faults according to claim 13 for air-conditioning system, which is characterized in that according to the failure Period, corresponding operation data carried out fault diagnosis, comprising:
Fault point parameter type is obtained, and according to the corresponding operation data of fault point parameter type described in the fault time section Failure operation curve is generated, to carry out fault diagnosis.
15. the method for diagnosing faults according to claim 12 for air-conditioning system, which is characterized in that the host computer exists Before being parsed to the operation data message, the method also includes:
First time verification is carried out to the operation data message according to the corresponding default specification；
The successfully operation data message is verified to first time and carries out CRC check；
According to the corresponding default specification, to CRC check, successfully the operation data message is parsed.
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CN109343514A (en) * 2018-11-21 2019-02-15 杭州德馨汽车服务有限公司 The diagnostic system of artificial intelligent type air conditioning for automobiles
CN110425694B (en) * 2019-08-09 2021-05-25 长江慧控科技(武汉)有限公司 High-speed rail intelligent station heating ventilation air conditioner energy efficiency control management method based on PHM
CN112303811B (en) * 2020-10-27 2021-12-14 珠海格力电器股份有限公司 Processing method, device and system for air conditioner operation data, air conditioner and storage medium
CN112283876A (en) * 2020-10-30 2021-01-29 青岛海尔空调电子有限公司 Air conditioner fault prediction method and air conditioner
CN114593498A (en) * 2021-12-21 2022-06-07 深圳市英维克信息技术有限公司 Air conditioner abnormity detection method, detection terminal, electronic equipment and storage medium
CN114866487B (en) * 2022-03-08 2024-03-05 国网江苏省电力有限公司南京供电分公司 Massive power grid dispatching data acquisition and storage system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
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CN103293399B (en) * 2012-02-22 2015-06-10 海尔集团公司 Method and system for fault analysis of electric equipment
CN103104961B (en) * 2013-01-30 2016-06-15 广东美的制冷设备有限公司 Communication fault detection method and detecting device
CN104699015A (en) * 2013-12-06 2015-06-10 珠海格力电器股份有限公司 Distributed power generation based air-conditioning monitoring system and air conditioning system applying same
CN103744365B (en) * 2013-12-16 2017-05-24 南京贝孚莱电子科技有限公司 Bridging module for communication between room control terminal and upper computer and method thereof
CN203813529U (en) * 2014-04-28 2014-09-03 陈学刚 Power distribution management system of intelligent terminal
CN104503400B (en) * 2014-12-10 2017-05-24 东莞市风火轮热能科技有限公司 Automatic monitoring device of air energy remote monitoring end
CN104634597B (en) * 2014-12-23 2018-03-16 广东美的制冷设备有限公司 A kind of refrigeration plant fault detection analysis method and system
CN105806640A (en) * 2014-12-30 2016-07-27 广东美的制冷设备有限公司 Air conditioner fault diagnosis device and diagnosis method
CN104819551B (en) * 2015-05-12 2018-05-25 广东美的暖通设备有限公司 For the fault warning system and air conditioner of air conditioner

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