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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- CN102692066B CN102692066B CN201210195714.3A CN201210195714A CN102692066B CN 102692066 B CN102692066 B CN 102692066B CN 201210195714 A CN201210195714 A CN 201210195714A CN 102692066 B CN102692066 B CN 102692066B
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- 238000003745 diagnosis Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 230000007613 environmental effect Effects 0.000 claims description 16
- 238000005485 electric heating Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000013480 data collection Methods 0.000 abstract 2
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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 invention relates to a fault diagnosis technology of a variable frequency air conditioner, in particular to a fault diagnosis control system and a fault diagnosis control method of the variable frequency air conditioner.
Background
Along with the rapid development of science and technology, the development of the air conditioner frequency conversion technology is faster and faster, more and more control parameters are provided, and the fault reasons and phenomena are also more and more complicated; the fault expression mode of the variable frequency air conditioner in the traditional technology is only that a fault code is displayed through an LED lamp or a digital tube carried by the variable frequency air conditioner, and the code is not standard, so that great troubles are caused to the use and the maintenance of a client. Meanwhile, the existing inverter air conditioner basically has no fault intelligent diagnosis, detection and control functions, and a few parts of air conditioners are only judged according to functionality, or no implementation method is adopted, or judgment is only carried out through external parameters such as environmental parameters (such as temperature); therefore, it is necessary to invent a control system with integrated control, detection and fault diagnosis, and to provide a corresponding control method to implement fast diagnosis and accurate positioning of the fault of the inverter air conditioner.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the fault diagnosis control system and the fault diagnosis control method for the variable frequency air conditioner are provided, and the fault of the variable frequency air conditioner can be quickly diagnosed and accurately positioned.
The technical scheme adopted by the invention for solving the technical problems is as follows:
inverter air conditioner fault diagnosis control system includes:
the intelligent control module is used for controlling the running state of the variable frequency air conditioner by sending a corresponding control instruction to the variable frequency air conditioner;
the data acquisition module is used for monitoring the running state of the variable frequency air conditioner in real time and acquiring the running parameters and the environmental parameters of the variable frequency air conditioner;
the standard database module is used for establishing a standard operation compensation curve according to different types and energy efficiency grades of the variable frequency air conditioner;
the fault diagnosis module is used for calculating the operating parameters and the environmental parameters of the variable frequency air conditioner acquired by the data acquisition module according to the control instruction of the intelligent control module to obtain an operating state curve of each component and a comprehensive operating state curve of the variable frequency air conditioner, then judging whether the variable frequency air conditioner has a fault according to the variation trend of each curve, and if the variable frequency air conditioner has the fault, judging the fault reason and a fault device;
and the display module is used for displaying the fault diagnosis result.
Furthermore, the intelligent control module is also used for simulating the running state of the internal machine of the air conditioner, detecting and debugging the internal machine, and detecting and debugging the external machine by simulating the running state of the external machine of the air conditioner.
Further, the fault diagnosis result comprises a fault reason and a fault device.
Further, the display module displays the characters, the curves and the images in a mode.
Furthermore, the fault diagnosis module is also used for comparing the operation state curves of all the components and the comprehensive operation state curve of the variable frequency air conditioner with the standard operation compensation curve established by the standard database module to obtain an operation effect diagram, so as to judge the components of the variable frequency air conditioner which need to be maintained.
Furthermore, the display module is also used for displaying devices of the variable frequency air conditioner which need to be maintained and maintained.
Another objective of the present invention is to provide a fault diagnosis control method for an inverter air conditioner, which includes the following steps:
a. sending a corresponding control instruction to the variable frequency air conditioner through the intelligent control module to control the running state of the variable frequency air conditioner;
b. the data acquisition module monitors the running state of the variable frequency air conditioner in real time and acquires running parameters and environmental parameters of the variable frequency air conditioner;
c. the fault diagnosis module calculates the operating parameters and the environmental parameters of the variable frequency air conditioner acquired by the data acquisition module to obtain operating state curves of all components and a comprehensive operating state curve of the variable frequency air conditioner, and then judges whether the variable frequency air conditioner has a fault according to the variation trend of each curve, and if the variable frequency air conditioner has the fault, judges the fault reason and fault devices;
d. and displaying the fault diagnosis result through the display module.
Further, the respective control instructions include: the method comprises the following steps of mode, startup and shutdown, set temperature, indoor unit air speed, outdoor unit air speed, compressor running frequency, electromagnetic valve, four-way valve, air door swing blade position and electric heating.
Further, the operating parameters include: compressor frequency, outer fan rotating speed, indoor unit air speed, compressor exhaust temperature, outer coil pipe temperature, inner coil pipe temperature, operating voltage, compressor current, complete machine current, air door swing blade position, electromagnetic valve state, four-way valve state and electric heating state.
Further, the environmental parameters include: outdoor temperature, indoor temperature, outdoor humidity, indoor unit air inlet temperature, indoor unit air outlet temperature and atmospheric pressure.
The invention has the beneficial effects that: the running state of the variable frequency air conditioner is monitored in real time, corresponding parameters are collected for calculation, whether the variable frequency air conditioner has faults or not is analyzed intelligently, finally, the fault diagnosis result is displayed visually, the faults of the air conditioner are positioned quickly and accurately, and reasonable use and maintenance of the air conditioner are facilitated.
Drawings
FIG. 1 is a block diagram of a fault diagnosis control system of the present invention;
fig. 2 is a flow chart of a fault diagnosis control method of the present invention.
Detailed Description
The invention discloses a fault diagnosis control system and a fault diagnosis control method for a variable frequency air conditioner, which are used for realizing rapid diagnosis and accurate positioning of faults of the variable frequency air conditioner. Referring to fig. 1, the control system includes: the system comprises an intelligent control module, a data acquisition module, a standard database module, a fault diagnosis module and a display module; wherein,
the intelligent control module is used for controlling the running state of the variable frequency air conditioner by sending a corresponding control instruction to the variable frequency air conditioner; detecting and debugging the outer machine or the inner machine of the variable frequency air conditioner by virtualizing the running state of the inner machine or the outer machine; wherein the control instructions include but are not limited to: the mode, the startup and shutdown, the set temperature, the air speed of the indoor unit, the air speed of the outdoor unit, the running frequency of the compressor, the electromagnetic valve, the four-way valve, the position of the air door swing blade, electric heating, other additional functions and the like;
the data acquisition module is used for monitoring the running state of the variable frequency air conditioner in real time and acquiring the running parameters and the environmental parameters of the variable frequency air conditioner; the operation parameters comprise compressor frequency, outer fan rotating speed, indoor unit wind speed, compressor exhaust temperature, outer coil pipe temperature, inner coil pipe temperature, operation voltage, compressor current, complete machine current, air door swing blade position, solenoid valve state, four-way valve state, electric heating state and the like; the environmental parameters comprise outdoor temperature, indoor temperature, outdoor humidity, indoor unit air inlet temperature, indoor unit air outlet temperature, atmospheric pressure and the like;
the standard database module is used for establishing a standard operation compensation curve according to different types and energy efficiency grades of the variable frequency air conditioner; the fault diagnosis module is used for calculating the operating parameters and the environmental parameters of the variable frequency air conditioner acquired by the data acquisition module according to the control instruction of the intelligent control module to obtain an operating state curve of each component and a comprehensive operating state curve of the variable frequency air conditioner, then judging whether the variable frequency air conditioner has a fault according to the variation trend of each curve, and if the variable frequency air conditioner has the fault, judging the fault reason and a fault device; meanwhile, each curve can be compared with data provided by a standard library module to obtain an operation effect graph, so that a device needing maintenance after the variable frequency air conditioner operates for a long time is judged;
the display module is used for displaying the fault diagnosis result, such as: the fault device and the fault reason are visually displayed in the forms of characters, images, curves and the like, and in addition, the device needing to be maintained can be displayed, so that a user can conveniently and comprehensively know the current state of the air conditioner.
Referring to fig. 2, the method for diagnosing and controlling the fault of the inverter air conditioner provided by the invention comprises the following steps:
a. sending a corresponding control instruction to the variable frequency air conditioner through the intelligent control module to control the running state of the variable frequency air conditioner;
b. the data acquisition module monitors the running state of the variable frequency air conditioner in real time and acquires running parameters and environmental parameters of the variable frequency air conditioner;
c. the fault diagnosis module calculates the operating parameters and the environmental parameters of the variable frequency air conditioner acquired by the data acquisition module to obtain operating state curves of all components and a comprehensive operating state curve of the variable frequency air conditioner, and then judges whether the variable frequency air conditioner has a fault according to the variation trend of each curve, and if the variable frequency air conditioner has the fault, judges the fault reason and fault devices;
d. and displaying the fault diagnosis result through the display module.
Claims (10)
1. Inverter air conditioner fault diagnosis control system, its characterized in that includes:
the intelligent control module is used for controlling the running state of the variable frequency air conditioner by sending a corresponding control instruction to the variable frequency air conditioner;
the data acquisition module is used for monitoring the running state of the variable frequency air conditioner in real time and acquiring the running parameters and the environmental parameters of the variable frequency air conditioner;
the standard database module is used for establishing a standard operation compensation curve according to different types and energy efficiency grades of the variable frequency air conditioner;
the fault diagnosis module is used for calculating the operating parameters and the environmental parameters of the variable frequency air conditioner acquired by the data acquisition module according to the control instruction of the intelligent control module to obtain an operating state curve of each component and a comprehensive operating state curve of the variable frequency air conditioner, then judging whether the variable frequency air conditioner has a fault according to the variation trend of each curve, and if the variable frequency air conditioner has the fault, judging the fault reason and a fault device;
and the display module is used for displaying the fault diagnosis result.
2. The inverter air conditioner fault diagnosis control system of claim 1, wherein the intelligent control module is further configured to virtualize an operation state of an air conditioner internal unit, detect and debug the internal unit, virtualize an operation state of an air conditioner external unit, and detect and debug the external unit.
3. The inverter air conditioner fault diagnosis control system according to claim 1 or 2, wherein the fault diagnosis result includes a fault cause and a fault device.
4. The inverter air conditioner fault diagnosis control system of claim 1 or 2, wherein the display module displays in a text, curve and image mode.
5. The inverter air conditioner fault diagnosis control system according to claim 1 or 2, wherein the fault diagnosis module is further configured to compare the operating state curve of each component and the comprehensive operating state curve of the inverter air conditioner with a standard operating compensation curve established by the standard database module to obtain an operating effect diagram, thereby determining a device of the inverter air conditioner that needs to be maintained.
6. The inverter air conditioner fault diagnosis control system of claim 5, wherein the display module is further used for displaying devices of the inverter air conditioner which need to be maintained and maintained.
7. The fault diagnosis control method of the variable frequency air conditioner is characterized by comprising the following steps of:
a. sending a corresponding control instruction to the variable frequency air conditioner through the intelligent control module to control the running state of the variable frequency air conditioner;
b. the data acquisition module monitors the running state of the variable frequency air conditioner in real time and acquires running parameters and environmental parameters of the variable frequency air conditioner;
c. the fault diagnosis module calculates the operating parameters and the environmental parameters of the variable frequency air conditioner acquired by the data acquisition module to obtain operating state curves of all components and a comprehensive operating state curve of the variable frequency air conditioner, and then judges whether the variable frequency air conditioner has a fault according to the variation trend of each curve, and if the variable frequency air conditioner has the fault, judges the fault reason and fault devices;
d. and displaying the fault diagnosis result through the display module.
8. The inverter air conditioner fault diagnosis control method according to claim 7, wherein the corresponding control command comprises: the method comprises the following steps of mode, startup and shutdown, set temperature, indoor unit air speed, outdoor unit air speed, compressor running frequency, electromagnetic valve, four-way valve, air door swing blade position and electric heating.
9. The inverter air conditioner fault diagnosis control method according to claim 7, wherein the operation parameters include: compressor frequency, outer fan rotating speed, indoor unit air speed, compressor exhaust temperature, outer coil pipe temperature, inner coil pipe temperature, operating voltage, compressor current, complete machine current, air door swing blade position, electromagnetic valve state, four-way valve state and electric heating state.
10. The inverter air conditioner fault diagnosis control method according to claim 7, wherein the environmental parameters include: outdoor temperature, indoor temperature, outdoor humidity, indoor unit air inlet temperature, indoor unit air outlet temperature and atmospheric pressure.
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| CN102692066A (en) | 2012-09-26 |
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