CN110440393A - Detection method, detection device and the air-conditioning of air conditioner temperature sensor failure - Google Patents
Detection method, detection device and the air-conditioning of air conditioner temperature sensor failure Download PDFInfo
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- CN110440393A CN110440393A CN201910741907.6A CN201910741907A CN110440393A CN 110440393 A CN110440393 A CN 110440393A CN 201910741907 A CN201910741907 A CN 201910741907A CN 110440393 A CN110440393 A CN 110440393A
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- air conditioner
- temperature sensor
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- conditioner temperature
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- 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
- F24F11/38—Failure diagnosis
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- 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
-
- 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
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- 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
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides detection method, detection device and the air-conditionings of a kind of air conditioner temperature sensor failure, wherein the detection method of the air conditioner temperature sensor failure comprises determining that the corresponding value of electrical signals of temperature information of the air conditioner temperature sensor acquisition；Determine that the value of electrical signals is greater than a value of electrical signals upper limit or the duration less than a value of electrical signals lower limit；And value and duration detect the air conditioner temperature sensor failure according to the electric signal.Detection method, detection device and the air-conditioning of air conditioner temperature sensor failure of the present invention, accuracy is high, is able to detect and shows specific fault type, meet the use demand of user well.
Description
Technical field
The present invention relates to air conditioner technical fields, in particular to a kind of detection of air conditioner temperature sensor failure
Method, detection device and air-conditioning.
Background technique
With the continuous development of science and technology, more and more household appliances enter daily life and work is worked as
In.Household appliance is by taking air-conditioning as an example, and air-conditioning can provide refrigeration by heat exchange under cold perhaps hot environment or heating is imitated
Fruit, to provide comfortable indoor environment.
Air conditioner temperature sensor plays a crucial role the normal operation of air-conditioning, if air conditioner temperature sensor goes out
Existing failure, it is possible to the related load that will cause system is damaged, and air-conditioning can not normally start, therefore air conditioner temperature sensor
Fault detection is even more important.The accuracy of current air conditioner temperature sensor fault detection is inadequate, can not detect specific event
Hinder type, the use demand of user can not be met well.
In addition, existing scheme shows air conditioner temperature sensor failure usually using single fault code, it cannot quickly, clearly
Chu accurately knows the specific failure of air conditioner temperature sensor or Exception Type, and there are optimization spaces.
Summary of the invention
The problem to be solved in the present invention is that the failure detection schemes accuracy of existing air conditioner temperature sensor is inadequate, Bu Nengjian
It surveys and shows specific fault type, the use demand of user can not be met well.
To solve the above problems, the present invention provide the detection method of air conditioner temperature sensor failure a kind of, detection device and
Air-conditioning.
A kind of detection method of air conditioner temperature sensor failure, comprising:
Determine the corresponding value of electrical signals of temperature information of the air conditioner temperature sensor acquisition；
Determine that the value of electrical signals is greater than a value of electrical signals upper limit or the duration less than a value of electrical signals lower limit；And
Value and duration detect the air conditioner temperature sensor failure according to the electric signal.
Detection method, value and duration carry out the air conditioner temperature sensor failure according to the electric signal
Detection can effectively exclude nominal sensor output signal beyond situation is accidentally protected caused by setting range, improve sky
The accuracy of temperature regulating Transducer fault detection.
Further, the corresponding value of electrical signals of temperature information of the air conditioner temperature sensor acquisition is determined, comprising:
Utilize the air conditioner temperature sensor temperature collection information；
The temperature information is obtained, and the temperature information is converted to by value of electrical signals by digital-to-analogue conversion.
Further, value and duration detect the air conditioner temperature sensor failure according to the electric signal,
Include:
If the value of electrical signals is greater than a value of electrical signals upper limit, and the value of electrical signals is greater than the value of electrical signals upper limit
Duration be greater than a time threshold, it is determined that the air conditioner temperature sensor failure be short trouble.
Further, value and duration detect the air conditioner temperature sensor failure according to the electric signal,
Further include:
If the value of electrical signals is less than a value of electrical signals lower limit, and the value of electrical signals is less than the value of electrical signals lower limit
Duration be greater than a time threshold, it is determined that the air conditioner temperature sensor failure be open circuit fault.
The present invention can carry out short trouble detection and open circuit fault detection simultaneously as a result, can accurately determine air-conditioning
The fault type of temperature sensor is short trouble or open circuit fault, the quick positioning failure of personnel easy to repair, on-call maintenance
Replacement, so as to extend the service life of air-conditioning system, promotes the satisfaction of user.
Further, the electric signal is voltage signal or current signal.
A kind of detection device of air conditioner temperature sensor failure, comprising:
Digital and analogue signals conversion module, for determining the corresponding electric signal of temperature information of the air conditioner temperature sensor acquisition
Value；
Timer, for determining that the value of electrical signals is greater than a value of electrical signals upper limit or holding less than a value of electrical signals lower limit
The continuous time；And
Master controller, for being worth according to the electric signal and the duration examines the air conditioner temperature sensor failure
It surveys.
Detection device of the present invention, value and duration carry out the air conditioner temperature sensor failure according to the electric signal
Detection can effectively exclude nominal sensor output signal beyond situation is accidentally protected caused by setting range, improve sky
The accuracy of temperature regulating Transducer fault detection.
Further, the master controller is also used to control the operational mode of the air-conditioning according to testing result.
Further, the testing result be the air conditioner temperature sensor failure when: if present mode be freeze or
Dehumidification mode, the master controller are used to present mode changing into ventilation mode；If present mode is heating mode, the master
Controller is shut down for changing into present mode to be transferred to after ventilation mode runs a preset time.It is avoided as a result, due to air-conditioning
Temperature sensor failure causes the related load of system to be damaged.
Further, the detection device further include: display screen, for showing the sky using different fault codes
The different faults type of temperature regulating sensor.Show that different faults type can be more intuitive by using different fault codes
Show fault type, fast and easy determines fault type, improves troubleshooting efficiency.
A kind of air conditioner, the detection device including the air conditioner temperature sensor failure.
Detailed description of the invention
Fig. 1 is the detection method flow chart of air conditioner temperature sensor failure according to the present invention；
Fig. 2 is the detection device block diagram of air conditioner temperature sensor failure according to an embodiment of the present invention；
Fig. 3 is the detection method flow chart of air conditioner temperature sensor failure according to an embodiment of the present invention.
Specific embodiment
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
The present invention provides a kind of detection methods of air conditioner temperature sensor failure, as shown in Figure 1, the air-conditioner temperature passes
The detection method of sensor failure includes:
Determine the corresponding value of electrical signals of temperature information of the air conditioner temperature sensor acquisition；
Determine that the value of electrical signals is greater than a value of electrical signals upper limit or the duration less than a value of electrical signals lower limit；And
Value and duration detect the air conditioner temperature sensor failure according to the electric signal.
Detection method, value and duration carry out the air conditioner temperature sensor failure according to the electric signal
Detection can effectively exclude nominal sensor output signal beyond situation is accidentally protected caused by setting range, improve sky
The accuracy of temperature regulating Transducer fault detection.
Wherein, the corresponding value of electrical signals of temperature information of the determination air conditioner temperature sensor acquisition, comprising:
Utilize the air conditioner temperature sensor temperature collection information；
The temperature information is obtained, and the temperature information is converted to by value of electrical signals by digital-to-analogue conversion.
The value according to the electric signal and duration detect the air conditioner temperature sensor failure, comprising:
If the value of electrical signals is greater than a value of electrical signals upper limit, and the value of electrical signals is greater than the value of electrical signals upper limit
Duration be greater than a time threshold, it is determined that the air conditioner temperature sensor failure be short trouble；
If the value of electrical signals is less than a value of electrical signals lower limit, and the value of electrical signals is less than the value of electrical signals lower limit
Duration be greater than a time threshold, it is determined that the air conditioner temperature sensor failure be open circuit fault (also referred to as open circuit therefore
Barrier).
The present invention can carry out short trouble detection and open circuit fault detection simultaneously as a result, can accurately determine air-conditioning
The fault type of temperature sensor is short trouble or open circuit fault, the quick positioning failure of personnel easy to repair, on-call maintenance
Replacement, so as to extend the service life of air-conditioning system, promotes the satisfaction of user.
The electric signal be voltage signal or current signal, the value of electrical signals be voltage signal values or current signal value,
That is the measured value (abbreviation current value) of the measured value (abbreviation voltage value) of voltage signal or current signal.The value of electrical signals upper limit
For the maximum value for working normally value of electrical signals range, the value of electrical signals lower limit is the minimum for working normally value of electrical signals range
Value, the value of electrical signals upper limit and value of electrical signals lower limit can be preset.
Further, the method for the present invention, after fault detection, further includes: if detecting air conditioner temperature sensor failure,
Then show air conditioner temperature sensor fault type.Specifically, showing different fault types using different fault codes.By
This, more intuitive to show fault type, fast and easy determines fault type, improves troubleshooting efficiency.
In addition, the method for the present invention may also include that the fortune for controlling air-conditioning according to failure detection result after fault detection
Row mode.Specifically, changing the operational mode of air-conditioning if testing result is air conditioner temperature sensor failure；If testing result
It is normal for air conditioner temperature sensor, then do not change the operational mode of air-conditioning.Avoid event occur due to air conditioner temperature sensor as a result,
Barrier causes the related load of system to be damaged.
The present invention also provides a kind of detection devices of air conditioner temperature sensor failure, comprising:
Digital and analogue signals conversion module, for determining the corresponding electric signal of temperature information of the air conditioner temperature sensor acquisition
Value；
Timer, for determining that the value of electrical signals is greater than a value of electrical signals upper limit or holding less than a value of electrical signals lower limit
The continuous time；And
Master controller, for being worth according to the electric signal and the duration examines the air conditioner temperature sensor failure
It surveys.
Detection device of the present invention, value and duration carry out the air conditioner temperature sensor failure according to the electric signal
Detection can effectively exclude nominal sensor output signal beyond situation is accidentally protected caused by setting range, improve sky
The accuracy of temperature regulating Transducer fault detection.
Specifically, if the value of electrical signals is greater than a value of electrical signals upper limit, and the value of electrical signals is greater than a telecommunications
Number value the upper limit duration be greater than a time threshold, then the master controller determine the air conditioner temperature sensor failure be it is short
Road failure；If the value of electrical signals is less than a value of electrical signals lower limit, and the value of electrical signals is less than the value of electrical signals lower limit
Duration be greater than a time threshold, then the master controller determine the air conditioner temperature sensor failure be open circuit fault.
Further, the master controller is also used to control the operational mode of air-conditioning according to testing result, in the detection
When being as a result the air conditioner temperature sensor failure: if present mode is refrigeration or dehumidification mode, the master controller is used for will
Present mode changes into ventilation mode；If present mode is heating mode, the master controller is for changing into present mode
It is transferred to after ventilation mode runs a preset time and shuts down.It avoids causing system since air conditioner temperature sensor breaks down as a result,
Related load be damaged.
Preferably, the detection device of the air conditioner temperature sensor failure may also include that display screen, for showing the sky
The type of temperature regulating sensor fault.Specifically, the display screen shows different fault types using different fault codes.
More intuitive as a result, to show fault type, fast and easy determines fault type, improves troubleshooting efficiency.
The detection method and detection device of air conditioner temperature sensor failure of the present invention is discussed in detail below with reference to embodiment.
Embodiment one
A kind of detection device of air conditioner temperature sensor failure is present embodiments provided, as shown in Fig. 2, the air-conditioner temperature
The detection device of sensor fault includes: master control borad and display board.
Wherein, the master control borad includes temperature sensor, D/A converter module, timer and master controller (troubleshooting
Unit)；The temperature sensor is used for temperature collection information；The D/A converter module is for being converted to the temperature information
Voltage signal；The timer is for determining that the voltage value is greater than a maximum limitation voltage value or less than a minimum limitation voltage
The duration of value；The master controller is used for according to the voltage signal and duration to the air conditioner temperature sensor event
Barrier is detected and is handled.
The display board includes display master control communication module and display screen；The display master control communication module is used for the master
Control the communication between plate and the display board；The display screen is for showing air conditioner temperature sensor fault type to remind；
Specifically, the display screen shows fault code E1 in short trouble；In open-circuit fault, the display screen shows failure
Code 1E.The fault code, which can according to need, to be adjusted, and is not limited to that.
Embodiment two
A kind of detection method of air conditioner temperature sensor failure is present embodiments provided, as shown in figure 3, the air-conditioner temperature
The detection method of sensor fault, comprising the following steps:
S1: temperature sensor temperature collection information；
S2: the temperature information is converted to voltage signal by digital and analogue signals conversion module；
S3: judge whether the voltage value U of the voltage signal exceeds normal working voltage range (setting normal working voltage
Range limit is that maximum limitation voltage value is Umax, and normal working voltage range lower limit is minimum limitation voltage value Umin), such as not
Beyond the normal working voltage range, then determine that temperature sensor is normal, return continues to test, and such as exceeds the normal work
Voltage range then enters in next step；
S4: judge whether the voltage value U is more than maximum limitation voltage value Umax, as voltage value U is less than maximum limitation
Voltage value Umax then enters in next step (step S5)；If voltage value U is more than maximum limitation voltage value Umax, then judge that it continues
Whether time t1 (duration that voltage value U is more than maximum limitation voltage value Umax) is greater than time threshold ts, such as duration
T1 is greater than time threshold ts, then determines that failure for short circuit sensor, and shows fault code E1, enter step S6；When such as continuing
Between t1 be less than time threshold ts, then t1 value is reset, return continues to test；
Specifically, the voltage value Umax is between 4.73 volt of -4.95 volt, time threshold ts is between the 1.5-2.5 second
Between, usual ts is set as 2 seconds.
Whether S5: the voltage value U judged be lower than minimum limitation voltage value Umin, as voltage value U is not less than irreducible minimum
Voltage value Umin processed is then returned and is continued to test；If voltage value U is lower than minimum limitation voltage value Umin, then its duration is judged
Whether t2 (duration of the voltage value U lower than minimum limitation voltage value Umin) is greater than time threshold ts, as duration t2 is big
In time threshold ts, then determines that failure for open sensor, and shows fault code 1E, enter step S6；As t2 is less than the time
Threshold value ts then resets t2 value, and return continues to test；
Specifically, the voltage value Umin is between 0.05 volt of -0.137 volt, time threshold ts is between the 1.5-2.5 second
Between, usual ts is set as 2 seconds.
S6: after determining failure, the operational mode of air conditioner will accordingly be changed according to present mode, be continued to run, and be tieed up
After the personnel of repairing repair replacement, fault recovery.
Specifically, as shown in table 1, if present mode is refrigeration or dehumidification mode, present mode is changed into ventilation mould
Formula；If present mode is heating mode, present mode is changed into and is transferred to after ventilation mode operation 5min, is shut down；If working as
Preceding operational mode is other modes in addition to refrigeration mode, dehumidification mode and heating mode, until exiting current function.
Table 1
Voltage signal measured value size and its duration of the present embodiment by the temperature sensor of acquisition, judge temperature
The failure of sensor is open circuit or short circuit, improves the accuracy of air conditioner temperature sensor fault detection, can more effectively help
Maintenance personal's positioning failure after sale is helped, on-call maintenance replacement promotes user so as to extend the service life of air-conditioning system
Satisfaction.
In addition, the present invention also provides a kind of air-conditionings comprising the detection device of the air conditioner temperature sensor failure.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (10)
1. a kind of detection method of air conditioner temperature sensor failure characterized by comprising
Determine the corresponding value of electrical signals of temperature information of the air conditioner temperature sensor acquisition；
Determine that the value of electrical signals is greater than a value of electrical signals upper limit or the duration less than a value of electrical signals lower limit；And
Value and duration detect the air conditioner temperature sensor failure according to the electric signal.
2. detection method according to claim 1, which is characterized in that determine the temperature of the air conditioner temperature sensor acquisition
The corresponding value of electrical signals of information, comprising:
Utilize the air conditioner temperature sensor temperature collection information；
The temperature information is obtained, and the temperature information is converted to by value of electrical signals by digital-to-analogue conversion.
3. detection method according to claim 1, which is characterized in that value and duration are to described according to the electric signal
Air conditioner temperature sensor failure is detected, comprising:
If the value of electrical signals is greater than a value of electrical signals upper limit, and the value of electrical signals is greater than holding for the value of electrical signals upper limit
The continuous time is greater than a time threshold, it is determined that the air conditioner temperature sensor failure is short trouble.
4. detection method according to claim 3, which is characterized in that value and duration are to described according to the electric signal
Air conditioner temperature sensor failure is detected, further includes:
If the value of electrical signals is less than a value of electrical signals lower limit, and the value of electrical signals is less than holding for the value of electrical signals lower limit
The continuous time is greater than a time threshold, it is determined that the air conditioner temperature sensor failure is open circuit fault.
5. detection method according to claim 1, which is characterized in that the electric signal is voltage signal or current signal.
6. a kind of detection device of air conditioner temperature sensor failure characterized by comprising
Digital and analogue signals conversion module, for determining the corresponding value of electrical signals of temperature information of the air conditioner temperature sensor acquisition；
Timer, for determine the value of electrical signals be greater than a value of electrical signals upper limit or less than a value of electrical signals lower limit it is lasting when
Between；And
Master controller, for being worth according to the electric signal and the duration detects the air conditioner temperature sensor failure.
7. detection device according to claim 6, which is characterized in that the master controller is also used to control according to testing result
Make the operational mode of the air-conditioning.
8. detection device according to claim 7, which is characterized in that the testing result be the air-conditioner temperature sensing
When device failure: if present mode is refrigeration or dehumidification mode, the master controller is used to present mode changing into ventilation mode；
If present mode be heating mode, the master controller for present mode is changed into be transferred to ventilation mode operation one it is default when
Between after shut down.
9. detection device according to claim 6, which is characterized in that further include: display screen, for using different failures
Code shows the different faults type of the air conditioner temperature sensor.
10. a kind of air conditioner, which is characterized in that including the air conditioner temperature sensor event as described in any one of claim 6 to 9
The detection device of barrier.
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| CN201910741907.6A CN110440393B (en) | 2019-08-12 | 2019-08-12 | Air conditioner temperature sensor fault detection method and device and air conditioner |
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| CN201910741907.6A CN110440393B (en) | 2019-08-12 | 2019-08-12 | Air conditioner temperature sensor fault detection method and device and air conditioner |
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| CN112963938A (en) * | 2021-03-18 | 2021-06-15 | 宁波奥克斯电气股份有限公司 | Control method and device of air conditioner and air conditioner |
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| CN110440393B (en) | 2021-07-23 |
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