CN102692066B - Fault diagnosis control system for variable-frequency air conditioner and control method of fault diagnosis control system - Google Patents
Fault diagnosis control system for variable-frequency air conditioner and control method of fault diagnosis control system Download PDFInfo
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Abstract
The invention relates to the fault diagnosis technology of a variable-frequency air conditioner and discloses a fault diagnosis control method for the variable-frequency air conditioner. The fast diagnosis and the precise positioning on the fault of the variable-frequency air conditioner are realized. The method comprises the following steps that a, corresponding control instructions are sent to the variable-frequency air conditioner through an intelligent control module for controlling the operation state of the variable-frequency air conditioner; b, a data collection module carries out real-time monitoring on the operation state of the variable-frequency air conditioner and collects environment parameters and operation parameters of the variable-frequency air conditioner; c, a fault diagnosis module calculates the environment parameters and the operation parameters of the variable-frequency air conditioner collected by the data collection module to obtain operation state curves of each part and the integral operation state curve of the variable-frequency air conditioner, then, whether the variable-frequency air conditioner has faults or not is judged according to the change trend of each curve, and the fault reason and the fault device are judged when the fault exists; and d, fault diagnosis results are displayed through a display module. In addition, the invention also discloses a fault diagnosis control system of the variable-frequency air conditioner, and the fault diagnosis control system is applicable to the fault diagnosis and the maintenance on the variable-frequency air conditioner.
Description
Technical field
The present invention relates to convertible frequency air-conditioner fault diagnosis technology, particularly a kind of convertible frequency air-conditioner fault diagnosis control system and fault diagnosis control method.
Background technology
Be accompanied by scientific and technological develop rapidly, the development of air-conditioning converter technique is more and more faster, controls parameter also more and more, and its failure cause and phenomenon seem equally and become increasingly complex; The fault manifestation mode of the convertible frequency air-conditioner in conventional art only shows failure code for the charactron carrying by LED lamp or transducer air conditioning, and code is lack of standardization, and client is used and keeps in repair and caused huge trouble.Simultaneously, present transducer air conditioning, does not have intelligent fault diagnosis, detection, control function substantially, and few part air-conditioner is only also to judge for functional, or there is no implementation method, or be only to judge by external parameters such as ambient parameters (as: temperature); Therefore, be necessary to invent a kind of control system being integrated with control, detection and fault diagnosis, and propose corresponding control method, to realize transducer air conditioning Fault Quick Diagnosis, precise positioning.
Summary of the invention
Technical problem to be solved by this invention is: propose a kind of convertible frequency air-conditioner fault diagnosis control system and control method, realize quick diagnosis, precise positioning to transducer air conditioning fault.
The present invention solves the problems of the technologies described above adopted technical scheme:
Convertible frequency air-conditioner fault diagnosis control system, comprising:
Intelligent control module, for by send corresponding control instruction to convertible frequency air-conditioner, controls the running status of convertible frequency air-conditioner;
Data acquisition module, monitors in real time for the running status to convertible frequency air-conditioner, and gathers operational factor and the ambient parameter of convertible frequency air-conditioner;
Normal data library module, moves compensated curves for the different Criterions according to convertible frequency air-conditioner type and efficiency grade;
Fault diagnosis module, be used for according to the control instruction of intelligent control module, operational factor and the ambient parameter of the convertible frequency air-conditioner that data acquisition module is collected are calculated, draw each parts running status curve and convertible frequency air-conditioner integrated operation condition curve, then, whether have fault, if any fault, judge failure cause and defective device if judging convertible frequency air-conditioner according to each plots changes;
Display module, for showing fault diagnosis result.
Further, described intelligent control module is also for virtual air-conditioning internal machine running status, and internally machine detects, debugs, virtual outdoor machine of air-conditioner running status, and externally machine detects, debugs.
Further, described fault diagnosis result comprises failure cause and defective device.
Further, described display module adopts the pattern of word, curve and image to show.
Further, described fault diagnosis module is also for comparing the standard operation compensated curve of each parts running status curve and convertible frequency air-conditioner integrated operation condition curve and the foundation of normal data library module, draw operational effect figure, thereby judge the device that convertible frequency air-conditioner needs to be serviced and maintains.
Further, the also device for showing that convertible frequency air-conditioner needs to be serviced and maintains of described display module.
Another object of the present invention, is also to propose a kind of convertible frequency air-conditioner fault diagnosis control method, and it comprises the following steps:
A. send corresponding control instruction by intelligent control module to convertible frequency air-conditioner, control the running status of convertible frequency air-conditioner;
B. data acquisition module is monitored in real time to the running status of convertible frequency air-conditioner, and gathers its operational factor and ambient parameter;
Operational factor and the ambient parameter of the convertible frequency air-conditioner that c. fault diagnosis module collects data acquisition module are calculated, draw each parts running status curve and convertible frequency air-conditioner integrated operation condition curve, then, judge convertible frequency air-conditioner according to each plots changes and whether have fault, if any fault, judge failure cause and defective device;
D. show fault diagnosis result by display module.
Further, described corresponding control instruction comprises: pattern, switching on and shutting down, design temperature, indoor set wind speed, off-premises station wind speed, compressor operating frequency, magnetic valve, cross valve, air door pendulum leaf position, electrical heating.
Further, described operational factor comprises: compressor frequency, outer rotation speed of fan, indoor set wind speed, compressor exhaust temperature, outer coil temperature, inner coil pipe temperature, working voltage, compressor current, complete machine electric current, air door pendulum leaf position, magnetic valve state, cross valve state, electrical heating state.
Further, described ambient parameter comprises: outdoor temperature, indoor temperature, outside humidity, interior machine intake air temperature, interior machine air outlet temperature, atmospheric pressure.
The invention has the beneficial effects as follows: monitor in real time by the running status to convertible frequency air-conditioner, and gather relevant parameter and calculate, whether intelligent analysis convertible frequency air-conditioner there is fault, finally fault diagnosis result is carried out to visualize demonstration, realize to air-condition faults fast, accurately location, be conducive to the rationalization operation and maintenance to air-conditioner.
Brief description of the drawings
Fig. 1 is fault diagnosis control system structured flowchart of the present invention;
Fig. 2 is fault diagnosis control method flow chart of the present invention.
Detailed description of the invention
The invention discloses a kind of convertible frequency air-conditioner fault diagnosis control system and control method, realize quick diagnosis, precise positioning to transducer air conditioning fault.Referring to Fig. 1, this control system comprises: intelligent control module, data acquisition module, normal data library module, fault diagnosis module, the several parts of display module; Wherein,
Intelligent control module, for by send corresponding control instruction to convertible frequency air-conditioner, controls the running status of convertible frequency air-conditioner; Virtual interior machine or outer machine running status, detect, debug the outer machine of transducer air conditioning or interior machine; Wherein control instruction includes but not limited to: pattern, switching on and shutting down, design temperature, indoor set wind speed, off-premises station wind speed, compressor operating frequency, magnetic valve, cross valve, air door pendulum leaf position, electrical heating, other additional function etc.;
Data acquisition module, monitors in real time for the running status to convertible frequency air-conditioner, and gathers operational factor and the ambient parameter of convertible frequency air-conditioner; Wherein operational factor comprises compressor frequency, outer rotation speed of fan, indoor set wind speed, compressor exhaust temperature, outer coil temperature, inner coil pipe temperature, working voltage, compressor current, complete machine electric current, air door pendulum leaf position, magnetic valve state, cross valve state, electrical heating state etc.; Ambient parameter comprises outdoor temperature, indoor temperature, outside humidity, interior machine intake air temperature, interior machine air outlet temperature, atmospheric pressure etc.;
Normal data library module, moves compensated curves for the different Criterions according to convertible frequency air-conditioner type and efficiency grade; Fault diagnosis module, be used for according to the control instruction of intelligent control module, operational factor and the ambient parameter of the convertible frequency air-conditioner that data acquisition module is collected are calculated, draw each parts running status curve and convertible frequency air-conditioner integrated operation condition curve, then, whether have fault, if any fault, judge failure cause and defective device if judging convertible frequency air-conditioner according to each plots changes; Meanwhile, the data that each curve can provide with java standard library module compare, and draw operational effect figure, thereby judge the device that needs to be serviced and maintain after the long-term operation of transducer air conditioning;
Display module, for showing fault diagnosis result, as: show defective device and failure cause by formal intuitions such as word, image, curves, in addition, can also show the device that needs to be serviced and maintain, facilitate user to fully understand air-conditioner current state.
The convertible frequency air-conditioner fault diagnosis control method that the present invention proposes is referring to Fig. 2, and it comprises the following steps:
A. send corresponding control instruction by intelligent control module to convertible frequency air-conditioner, control the running status of convertible frequency air-conditioner;
B. data acquisition module is monitored in real time to the running status of convertible frequency air-conditioner, and gathers its operational factor and ambient parameter;
Operational factor and the ambient parameter of the convertible frequency air-conditioner that c. fault diagnosis module collects data acquisition module are calculated, draw each parts running status curve and convertible frequency air-conditioner integrated operation condition curve, then, judge convertible frequency air-conditioner according to each plots changes and whether have fault, if any fault, judge failure cause and defective device;
D. show fault diagnosis result by display module.
Claims (10)
1. convertible frequency air-conditioner fault diagnosis control system, is characterized in that, comprising:
Intelligent control module, for by send corresponding control instruction to convertible frequency air-conditioner, controls the running status of convertible frequency air-conditioner;
Data acquisition module, monitors in real time for the running status to convertible frequency air-conditioner, and gathers operational factor and the ambient parameter of convertible frequency air-conditioner;
Normal data library module, moves compensated curves for the different Criterions according to convertible frequency air-conditioner type and efficiency grade;
Fault diagnosis module, be used for according to the control instruction of intelligent control module, operational factor and the ambient parameter of the convertible frequency air-conditioner that data acquisition module is collected are calculated, draw each parts running status curve and convertible frequency air-conditioner integrated operation condition curve, then, whether have fault, if any fault, judge failure cause and defective device if judging convertible frequency air-conditioner according to each plots changes;
Display module, for showing fault diagnosis result.
2. convertible frequency air-conditioner fault diagnosis control system as claimed in claim 1, it is characterized in that, described intelligent control module is also for virtual air-conditioning internal machine running status, and internally machine detects, debugs, virtual outdoor machine of air-conditioner running status, externally machine detects, debugs.
3. convertible frequency air-conditioner fault diagnosis control system as claimed in claim 1 or 2, is characterized in that, described fault diagnosis result comprises failure cause and defective device.
4. convertible frequency air-conditioner fault diagnosis control system as claimed in claim 1 or 2, is characterized in that, described display module adopts the pattern of word, curve and image to show.
5. convertible frequency air-conditioner fault diagnosis control system as claimed in claim 1 or 2, it is characterized in that, described fault diagnosis module is also for comparing the standard operation compensated curve of each parts running status curve and convertible frequency air-conditioner integrated operation condition curve and the foundation of normal data library module, draw operational effect figure, thereby judge the device that convertible frequency air-conditioner needs to be serviced and maintains.
6. convertible frequency air-conditioner fault diagnosis control system as claimed in claim 5, is characterized in that, described display module is the device for showing that convertible frequency air-conditioner needs to be serviced and maintains also.
7. convertible frequency air-conditioner fault diagnosis control method, is characterized in that, comprises the following steps:
A. send corresponding control instruction by intelligent control module to convertible frequency air-conditioner, control the running status of convertible frequency air-conditioner;
B. data acquisition module is monitored in real time to the running status of convertible frequency air-conditioner, and gathers its operational factor and ambient parameter;
Operational factor and the ambient parameter of the convertible frequency air-conditioner that c. fault diagnosis module collects data acquisition module are calculated, draw each parts running status curve and convertible frequency air-conditioner integrated operation condition curve, then, judge convertible frequency air-conditioner according to each plots changes and whether have fault, if any fault, judge failure cause and defective device;
D. show fault diagnosis result by display module.
8. convertible frequency air-conditioner fault diagnosis control method as claimed in claim 7, it is characterized in that, described corresponding control instruction comprises: pattern, switching on and shutting down, design temperature, indoor set wind speed, off-premises station wind speed, compressor operating frequency, magnetic valve, cross valve, air door pendulum leaf position, electrical heating.
9. convertible frequency air-conditioner fault diagnosis control method as claimed in claim 7, it is characterized in that, described operational factor comprises: compressor frequency, outer rotation speed of fan, indoor set wind speed, compressor exhaust temperature, outer coil temperature, inner coil pipe temperature, working voltage, compressor current, complete machine electric current, air door pendulum leaf position, magnetic valve state, cross valve state, electrical heating state.
10. convertible frequency air-conditioner fault diagnosis control method as claimed in claim 7, is characterized in that, described ambient parameter comprises: outdoor temperature, indoor temperature, outside humidity, interior machine intake air temperature, interior machine air outlet temperature, atmospheric pressure.
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