CN108332353B - Load state detecting method, device and circuit, air-conditioner controller - Google Patents
Load state detecting method, device and circuit, air-conditioner controller Download PDFInfo
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- CN108332353B CN108332353B CN201810061849.8A CN201810061849A CN108332353B CN 108332353 B CN108332353 B CN 108332353B CN 201810061849 A CN201810061849 A CN 201810061849A CN 108332353 B CN108332353 B CN 108332353B
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Classifications
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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
-
- 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
- F24F2140/00—Control inputs relating to system states
- F24F2140/50—Load
Abstract
The present invention discloses a kind of load state detecting method, device and circuit, air-conditioner controller.This method comprises: obtaining load executes the time；According to load-receipt at the time of executing instruction and load execute the time determine load execute the moment；Before and after load executes the moment, power bus current or power bus voltage are obtained respectively；The comparison result of moment front and back power bus current is executed according to load or executes the comparison result of power bus voltage before and after the moment according to load, judges whether load operating condition is normal.The present invention after the failure of air-conditioner controller device, can fast and accurately positioning failure, take a firm foundation to find out perfect solution.The present invention can reduce a large amount of manpower and material resources, improve after-sale service quality.
Description
Technical field
The present invention relates to air-conditioner controller field, in particular to a kind of load state detecting method, device and circuit, air-conditioning
Controller.
Background technique
Brain of the air-conditioner controller as air-conditioning, plays indispensable angle in the whole life cycle of air-conditioning products
Color.
But air-conditioning in actual use, due to the influence of many factors such as artificial or working environment, air-conditioning
Controller often will appear various informative and complicated failure at work, this when, entire air-conditioning products will paralysis
Paralysis.
Due to air-conditioner controller component complicated composition, so precise positioning can not be carried out to its failure under normal circumstances,
After needing after sale to return to faulty item at this time, experimental situation is built again, fault message is checked, in this process
A large amount of man power and material can be wasted.
Summary of the invention
In view of the above technical problem, the present invention provides a kind of load state detecting method, device and circuits, airconditioning control
Device can be quickly and accurately positioned the failure of air-conditioner controller.
According to an aspect of the present invention, a kind of load state detecting method is provided, comprising:
It obtains load and executes the time；
According to load-receipt at the time of executing instruction and load execute the time determine load execute the moment；
Before and after load executes the moment, power bus current or power bus voltage are obtained respectively；
The comparison result of moment front and back power bus current is executed according to load or according to power supply before and after the load execution moment
The comparison result of bus voltage judges whether load operating condition is normal.
In some embodiments of the invention, in the case where load has multiple, the detection loaded to one is executed every time；
After a upper load executes the predetermined amount of time after the moment, executed instruction to next load transmission.
In some embodiments of the invention, it is described load execute the moment before and after, respectively obtain power bus current or
Power bus voltage includes: to execute in the predetermined amount of time after predetermined amount of time and load before the moment execute the moment in load, point
Not Huo Qu power bus current average or average voltage.
In some embodiments of the invention, the comparison knot that power bus current before and after the moment is executed according to load
Fruit or according to load execute the moment before and after power bus voltage comparison result, judge load operating condition whether normally include:
According to the comparison result of the difference of two period current averages and current threshold or according to two period average voltages
Difference and voltage threshold comparison result, judge whether load operating condition normal.
In some embodiments of the invention, the difference and current threshold according to two period current averages
Comparison result, judge load operating condition whether normally include:
Whether the absolute difference for comparing two period current averages is greater than current threshold；
In the case where the absolute difference of two period current averages is greater than current threshold, the load is determined
Working condition is normal；
In the case where the absolute difference of two period current averages is not more than current threshold, the load is determined
Working state abnormal.
In some embodiments of the invention, the difference and voltage threshold according to two period average voltages
Comparison result, judge load operating condition whether normally include:
Whether the absolute difference for comparing two period average voltages is greater than voltage threshold；
In the case where the absolute difference of two period average voltages is greater than voltage threshold, the load is determined
Working condition is normal；
In the case where the absolute difference of two period average voltages is not more than voltage threshold, the load is determined
Working state abnormal.
In some embodiments of the invention, the predetermined amount of time is less than or equal to the load execution time；
The predetermined amount of time is more than or equal to the impact duration that load executes the moment.
In some embodiments of the invention, it is described load execute the moment before and after, respectively obtain power bus current or
Power bus voltage includes: the second moment after the first moment and load execution moment before load executes the moment, is obtained respectively
Take power bus current or power bus voltage.
In some embodiments of the invention, the comparison knot that power bus current before and after the moment is executed according to load
Fruit or according to load execute the moment before and after power bus voltage comparison result, judge load operating condition whether normally include:
According to the comparison result of the difference and current threshold of the first moment and the second moment power bus current or according to the first moment and
The difference of second moment power bus voltage and the comparison result of voltage threshold, judge whether load operating condition is normal.
According to another aspect of the present invention, a kind of load condition detection apparatus is provided, comprising:
Time-obtaining module is executed, executes the time for obtaining load；
Execute moment determining module, for according to load-receipt arrive at the time of executing instruction and load execution the time it is true
Fixed load executes the moment；
Detection module, for executing predetermined amount of time and the predetermined amount of time after the load execution moment before the moment in load
It is interior, the current average or average voltage of power bus are obtained respectively；
Condition judgment module, for according to the comparison result of the differences of two period current averages and current threshold,
Or according to the difference of two period average voltages and the comparison result of voltage threshold, judge load operating condition whether just
Often.
In some embodiments of the invention, the load condition detection apparatus realizes such as any of the above-described implementation for executing
The operation of load state detecting method described in example.
According to another aspect of the present invention, a kind of load condition detection apparatus is provided, comprising:
Memory, for storing instruction；
Processor, for executing described instruction, so that described device, which executes, realizes bearing as described in above-mentioned any embodiment
Carry the operation of condition detection method.
According to another aspect of the present invention, a kind of load condition detection circuit is provided, including power supply, current detection means,
At least one load and the load condition detection apparatus as described in above-mentioned any embodiment, in which:
Current detection means is arranged on power bus, and load setting is in the loop；
Current detection means is sent to load condition detection for measuring power bus current, and by power bus current
Device.
According to another aspect of the present invention, a kind of load condition detection circuit, including the inspection of power supply, electrical appliance, voltage are provided
Survey device, at least one load and the load condition detection apparatus as described in above-mentioned any embodiment, in which:
Electrical appliance is arranged on power bus, and load setting is in the loop；
The voltage at electrical appliance both ends is sent to load shape for measuring the voltage at electrical appliance both ends by voltage check device
State detection device；
Load condition detection apparatus, for using the voltage at electrical appliance both ends as power bus voltage.
In some embodiments of the invention, the electrical appliance is diode.
According to another aspect of the present invention, a kind of air-conditioner controller is provided, including negative as described in above-mentioned any embodiment
It carries condition checkout gear or includes load condition detection circuit as described in above-mentioned any embodiment.
According to another aspect of the present invention, a kind of computer readable storage medium, the computer-readable storage medium are provided
Matter is stored with computer instruction, and the load condition inspection as described in above-mentioned any embodiment is realized when described instruction is executed by processor
Survey method.
The working characteristics of present invention combination air-conditioner controller device, what detection air-conditioner controller device operating instant generated rushes
Shake is hit, judges its quality.The present invention after the failure of air-conditioner controller device, can fast and accurately positioning failure, be
Perfect solution is found out to take a firm foundation.The present invention can reduce a large amount of manpower and material resources, improve after-sale service quality.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the schematic diagram of some embodiments of load condition detection circuit of the present invention.
Fig. 2 is the schematic diagram of other embodiments of load condition detection circuit of the present invention.
Fig. 3 a is the schematic diagram of some embodiments of load state detecting method of the present invention.
Fig. 3 b is the schematic diagram of other embodiments of load state detecting method of the present invention.
Fig. 3 c is the schematic diagram of the other embodiment of load state detecting method of the present invention.
Fig. 4 is the schematic diagram of present invention load execution stage power bus current.
Fig. 5 is the schematic diagram of load state detecting method still other embodiments of the present invention.
Fig. 6 is the schematic diagram of some embodiments of load condition detection apparatus of the present invention.
Fig. 7 is the schematic diagram of other embodiments of load condition detection apparatus of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment be it is illustrative, never as to the present invention and its application or make
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.
Simultaneously, it should be appreciated that for ease of description, the size of various pieces shown in attached drawing is not according to reality
Proportionate relationship draw.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Fig. 1 is the schematic diagram of some embodiments of load condition detection circuit of the present invention.As shown in Figure 1, the load condition
Detection circuit may include power supply 1, current detection means 2, at least one load 3 and load condition detection apparatus 4, in which:
Power supply 1 is at least one 3 power supply of load.3 setting of load is in the loop.
Current detection means 2 is arranged on power bus.
As shown in Figure 1, connecting after two 3 parallel connections of load with current detection means 2 and power supply 1.
In some embodiments of the invention, load 3 can be device in the controllers such as air-conditioner controller, the device
Part can be the actuator of CPU control, wherein the actuator can execute for solenoid valve, feather valve and A.C. contactor etc.
Device.
In some embodiments of the invention, current detection means 2 can be the equipment such as ammeter, current tester.
Current detection means 2 measures power bus current for the instruction according to load condition detection apparatus 4, and will be electric
Source bus electric current is sent to load condition detection apparatus 4.
Load condition detection apparatus 4 is connect with current detection means 2 and each load 3 respectively by control route.
Load condition detection apparatus 4, as the CPU control module of controller, for sending work order to load 3, and
The detection of indicator current detection device 2 load 3 starts operating instant at it, and whether power source bus electric current has impact to shake, with judgement
Whether load 3 works normally.
Based on the load condition detection circuit that the above embodiment of the present invention provides, damaged in the controller device of air-conditioning products
Afterwards, accurate fault point information can be instantly available, thus can largely reduce review time of failure after sale, manpower and
Material resources, while entire service quality after sale can be promoted.
Fig. 2 is the schematic diagram of other embodiments of load condition detection circuit of the present invention.As shown in Figure 1, the load shape
State detection circuit may include power supply 1, at least one load 3, load condition detection apparatus 4, voltage check device 5 and electrical appliance
6, in which:
Power supply 1 is at least one 3 power supply of load.3 setting of load is in the loop.
Electrical appliance 6 is arranged on power bus.
In some embodiments of the invention, electrical appliance 6 can be diode.
As shown in Figure 1, connecting after two 3 parallel connections of load with electrical appliance 6 and power supply 1.
In some embodiments of the invention, load 3 can be device in the controllers such as air-conditioner controller, the device
Part can be the actuator of CPU control, wherein the actuator can execute for solenoid valve, feather valve and A.C. contactor etc.
Device.
In some embodiments of the invention, voltage check device 5 can be the equipment such as voltmeter, voltage tester.
Voltage check device 5 measures on power bus 6 liang of electrical appliance for the instruction according to load condition detection apparatus 4
The voltage of side, and the voltage of 6 two sides of electrical appliance is sent to load condition detection apparatus 4.
Load condition detection apparatus 4 is connect with voltage check device 5 and each load 3 respectively by control route.
Load condition detection apparatus 4, as the CPU control module of controller, for sending work order to load 3；It will
The voltage at 6 both ends of electrical appliance is as power bus voltage；And the detection of indicator current detection device 2 load 3 is in its starting work wink
Between, whether power bus voltage has impact to shake, to judge whether load 3 works normally.
It, can be in conjunction with the work of air-conditioner controller device based on the load condition detection circuit that the above embodiment of the present invention provides
Make characteristic, the impact shake that detection air-conditioner controller device operating instant generates judges its quality.The above embodiment of the present invention exists
After air-conditioner controller device breaks down, can fast and accurately positioning failure, lay solid base to find out perfect solution
Plinth.The above embodiment of the present invention can reduce a large amount of manpower and material resources, improve after-sale service quality.
Fig. 3 a is the schematic diagram of some embodiments of load state detecting method of the present invention.Preferably, the present embodiment can be by this
Invention load condition detection apparatus or load condition detection circuit execute.Method includes the following steps:
Step 101, obtain load execute time T1, wherein load execute time T1 be from load-receipt to execute instruction to
Load the delay time of execution movement.
In some embodiments of the invention, the method can also include: that preparatory measurement determines and records each load
Load execute time T1, such as: the execution time of solenoid valve is 20ms, and execution time of feather valve is 30ms, ac contactor
The execution time of device is 180ms；The corresponding load of the load is inquired by load name or mark later and executes the time.
Step 102, according to load-receipt at the time of executing instruction and load execute the time determine load execute the moment
t1。
Step 103, before and after load executes moment t1, power bus current or power bus voltage are obtained respectively.
In some embodiments of the invention, power bus current (voltage) can be load before the load executes the moment
The power bus current (voltage) at a certain moment before execution moment t1；The load executes power bus current (voltage) after the moment
The power bus current (voltage) at a certain moment after the moment can be executed for load.
In other embodiments of the invention, power bus current (voltage) can be negative before the load executes the moment
Carry the average power bus current (voltage) of t1 certain time period before executing the moment；The load executes power bus electricity after the moment
The average power bus current (voltage) of certain time period after the moment can be executed for load by flowing (voltage).
Step 104, the comparison result of moment front and back power bus current is executed according to load or the moment is executed according to load
The comparison result of front and back power bus voltage judges whether load operating condition is normal.
It, can be in conjunction with the work of air-conditioner controller device based on the load state detecting method that the above embodiment of the present invention provides
Make characteristic, the impact shake that detection air-conditioner controller device operating instant generates judges its quality.The above embodiment of the present invention can
To execute the comparison result of power bus current (voltage) before and after the moment according to load, judge whether load operating condition is normal,
To judge whether load breaks down.The above embodiment of the present invention, can be quickly quasi- after the failure of air-conditioner controller device
True positioning failure is taken a firm foundation to find out perfect solution.The above embodiment of the present invention can reduce a large amount of people
Power material resources improve after-sale service quality.
In some embodiments of the invention, step 104 may include: according to power bus current before the load execution moment
When with the absolute difference of power bus current and the comparison result of predetermined current threshold after the load execution moment or load execution
Carve before power bus current and load execution the moment after power bus voltage absolute difference compared with predetermined voltage threshold
As a result, judging whether load operating condition is normal.
In some embodiments of the invention, as shown in figure 4, when for load execution movement electric current (voltage) increase it is negative
Load, the absolute difference of power bus current and power bus current after the load execution moment is equal to before the load execution moment
Power bus current subtracts power bus current before the load execution moment after load executes the moment；The load executes electricity before the moment
The absolute difference of source bus voltage and power bus voltage after the load execution moment is equal to power bus after the load execution moment
Voltage subtracts load and executes power bus voltage before the moment.
In other embodiments of the invention, as shown in figure 4, electric current (voltage) reduction when for load execution movement
Load, power bus current and load execute the absolute difference etc. of power bus current after the moment before the load execution moment
Power bus current subtracts load and executes power bus current after the moment before the load execution moment；Before the load executes the moment
Power supply is total before the absolute difference of power bus voltage and power bus voltage after the load execution moment is equal to the load execution moment
Line voltage subtracts load and executes power bus voltage after the moment.
The above embodiment of the present invention can simultaneously be suitable for load execution movement when electric current (voltage) increase load and
The load that electric current (voltage) reduces when loading execution movement.
Fig. 3 b is the schematic diagram of other embodiments of load state detecting method of the present invention.Preferably, the present embodiment can be by
Load condition detection apparatus or load condition detection circuit of the present invention executes.The method comprising the steps of 201 to step 204.
Step 201, it obtains to load and executes time T1, wherein it is from load-receipt to executing instruction to bearing that load, which executes the time,
Carry the delay time of execution movement.
Step 202, according to load-receipt at the time of executing instruction and load execute the time determine load execute the moment
t1。
Step 203, the predetermined amount of time before moment t1 after predetermined amount of time T2 and load execution moment t1 is executed in load
In T2, the current average or average voltage of power bus are obtained respectively.
In some embodiments of the invention, the predetermined amount of time T2 is less than or equal to load execution time T1；It is described pre-
Section T2 that fixes time is more than or equal to impact duration (duration of peak current occur) T3 that load executes the moment.
In some embodiments of the invention, the predetermined amount of time T2 is equal to the impact duration T3 that load executes the moment.
Fig. 4 is the schematic diagram of present invention load execution stage power bus current.It is illustrated in figure 4 a certain load (device)
Starting current waveform.Current spike part as shown in Figure 4 be load initial start stage when electric current, it is subsequent be load running when
Electric current, finally be load close after electric current (straight line), occur current spike part duration be impact duration.Therefore,
Threshold value is calculated for current waveform to be easy for judge the working condition of device.
As shown in figure 4, the impact duration T3 that load executes the moment in one embodiment of the invention (occurs as shown in Figure 4
The duration of peak current or dash current).
Step 204, according to the comparison result of the difference of two period current averages and current threshold or according to two
The difference of period average voltage and the comparison result of voltage threshold judge whether load operating condition is normal.
It, can be in conjunction with the work of air-conditioner controller device based on the load state detecting method that the above embodiment of the present invention provides
Make characteristic, the impact shake that detection air-conditioner controller device operating instant generates judges its quality.The above embodiment of the present invention can
To execute the difference of former and later two period electric current (voltage) average values of moment according to load compared with electric current (voltage) threshold value
As a result, judging whether load operating condition is normal, to judge whether load breaks down.The above embodiment of the present invention is in air-conditioning control
After device device processed breaks down, can fast and accurately positioning failure, take a firm foundation to find out perfect solution.This hair
Bright above-described embodiment can reduce a large amount of manpower and material resources, improve after-sale service quality.
In some embodiments of the invention, in the case where load has multiple, the detection loaded to one is executed every time；
After a upper load executes the predetermined amount of time after the moment, executed instruction to next load transmission.
In some embodiments of the invention, step 204 may include:
Step 2041, whether the absolute difference for comparing two period current averages is greater than current threshold.
Step 2042, in the case where the absolute difference of two period current averages is greater than current threshold, determine
The working condition of the load is normal.
Step 2043, in the case where the absolute difference of two period current averages is not more than current threshold, sentence
The working state abnormal of the fixed load.
When the above embodiment of the present invention can be executed by comparing predetermined amount of time T2 before load execution moment t1 and load
The variation of the current average of predetermined amount of time T2 interior power bus after carving t1, determines whether loaded work piece is normal.
In other embodiments of the invention, step 204 may include:
Whether step 204a, the absolute difference for comparing two period average voltages are greater than voltage threshold.
Step 204b determines in the case where the absolute difference of two period average voltages is greater than voltage threshold
The working condition of the load is normal.
Step 204c sentences in the case where the absolute difference of two period average voltages is not more than voltage threshold
The working state abnormal of the fixed load.
When the above embodiment of the present invention can be executed by comparing predetermined amount of time T2 before load execution moment t1 and load
The variation of the average voltage of predetermined amount of time T2 interior power bus after carving t1, determines whether loaded work piece is normal.
Fig. 3 c is the schematic diagram of other embodiments of load state detecting method of the present invention.Preferably, the present embodiment can be by
Load condition detection apparatus or load condition detection circuit of the present invention executes.Method includes the following steps:
Step 301, it obtains to load and executes time T1, wherein it is from load-receipt to executing instruction to bearing that load, which executes the time,
Carry the delay time of execution movement.
Step 302, according to load-receipt at the time of executing instruction and load execute the time determine load execute the moment
t1。
Step 303, the first moment t2 before load executes the moment and the second moment t3 after the load execution moment, respectively
Obtain power bus current or power bus voltage.
Step 304, according to the difference of the first moment t2 and the second moment t3 power bus current compared with current threshold
As a result the comparison result of difference and voltage threshold or according to the first moment t2 and the second moment t3 power bus voltage, judgement
Whether load operating condition is normal.
In some embodiments of the invention, first moment t2 is any moment in load execution time T1；Institute
Stating the second moment t3 is any moment in predetermined amount of time T2.
It, can be in conjunction with the work of air-conditioner controller device based on the load state detecting method that the above embodiment of the present invention provides
Make characteristic, the impact shake that detection air-conditioner controller device operating instant generates judges its quality.The above embodiment of the present invention can
To execute the difference of former and later two time point electric current (voltage) average values of moment according to load compared with electric current (voltage) threshold value
As a result, judging whether load operating condition is normal, to judge whether load breaks down.The above embodiment of the present invention is in air-conditioning control
After device device processed breaks down, can fast and accurately positioning failure, take a firm foundation to find out perfect solution.This hair
Bright above-described embodiment can reduce a large amount of manpower and material resources, improve after-sale service quality.
Load state detecting method of the present invention is illustrated below by specific embodiment.
Embodiment one
Fig. 5 is the schematic diagram of load state detecting method still other embodiments of the present invention.Fig. 5 embodiment is used such as Fig. 2 institute
The load condition detection circuit shown.Wherein electrical appliance 6 uses diode, and diode is placed on the total loop of circuit, voltage inspection
Survey the voltage that module 5 detects diode both ends respectively；And actuator (load 3) is placed in circuit.
As shown in figure 5, the load state detecting method may include:
Step 501, load condition detection apparatus 4 issues work order to 3 (air-conditioner controller devices) of load.
It step 502, can be after time-delay T1, just after actuator (load) receives the execution order of controller
It can be carried out movement.In the initial working condition of device, voltage dithering range is larger, is detected immediately at this time, and data are simultaneously
It is inaccurate.
Step 503, after actuator movement, power bus current increases, and in front end, the pressure drop of diode increases.
Step 504, it while the work of master controller (load condition detection apparatus 4) control actuator, is held in load
The voltage at diode both ends is recorded before row moment t1 in predetermined amount of time T2, and obtains the average voltage V1 of the period.
Voltage detection module executes in load after the T1 that is delayed and detects diode again in predetermined amount of time T2 after moment t1
The voltage at both ends, and obtain the average voltage V2 of the period.
By load is executed corresponded in former and later two predetermined amount of time of moment t1 the voltage V1 and V2 at diode both ends into
Row comparison judges that two period voltage absolute value of the difference are greater than predetermined threshold.It is big in two period voltage absolute value of the difference
In the case where predetermined threshold, step 507 is executed；Otherwise, it is less than predetermined threshold in two period voltage absolute value of the difference
In the case of, execute step 505.
Step 505, actuator (device) non-normal working.
Step 506, the device fault is reported；It can be determined that whether next actuator works normally later.
Step 507, Predicated execution device has acted, and device is working properly；Whether can be determined that next actuator later
It works normally.
Embodiment two
In the case where air-conditioner controller includes multiple actuators, due to needing to judge single actuator, controlling
It is somewhat different with traditional control mode in method processed.Separation control need to be carried out, i.e., an actuator is only carried out every time, for every
The execution time of a actuator calculates load and executes time T1 and load execution moment t1, and load executes pre- timing before moment t1
Between section T2 and load execute moment t1 after predetermined amount of time T2 in, bus is judged in detection circuit, due to only carrying out
One actuator, detecting that variation can determine is the movement of this actuator.Predetermined amount of time after load executes moment t1
After T2, next actuator is detected again.
It is possible thereby to determine, duration T needed for load condition detection apparatus detects an actuator is that load executes time T1
The sum of with predetermined amount of time T2, that is, T=T1+T2, wherein twice of a length of predetermined amount of time T2 when voltage or current detecting.
In addition, operating current and response time also differ widely, according to it since actuator can be different device
Action feature can carry out current threshold or voltage threshold setting and predetermined amount of time T2 setting for device when detecting, it is ensured that
Detection reaches optimum detection effect in optimum position.
The above embodiment of the present invention realizes the detection to multiple devices of air-conditioning products controller in which can be convenient, in air-conditioning
After the controller device damage of product, it can be instantly available accurate fault point information, it is possible thereby to be further reduced event after sale
The review time of barrier, man power and material, while further promoting entire service quality after sale.
Such as: the load of CPU (load condition detection apparatus) control has solenoid valve, feather valve and A.C. contactor.
The first, the detection of solenoid valve
Load condition detection apparatus first carries out solenoid valve, and the actuation time of solenoid valve can be calculated according to solenoid valve power
T1 about 20ms, can set predetermined amount of time T2=T1=20ms.CPU controls solenoid valve moment in output as a result, starts to detect
With the voltage value of record trunk, recording the time is about 20ms, and is summed to collected voltage value in preceding 0ms-20ms, so
Re-record the voltage value in next 20ms time afterwards, i.e., sum to the voltage value between 20ms-40ms, respectively will before
Voltage value in latter two 20ms time is compared, if its difference has reached predetermined voltage threshold 0.3V, determines electromagnetism
Valve is normal, if difference very little, or do not reach the threshold value of our settings, just report the solenoid valve failure.Solenoid valve is completed as a result,
Detection need 40ms.
In an embodiment of the invention, by the voltage oscillogram of similar Fig. 4, the impact duration of solenoid valve can be determined
T3 is 2ms.
And the selection of the predetermined amount of time T2 of solenoid valve can be more than or equal to T3 (2ms), be less than or equal to T1 (20ms).Therefore
In the case where selecting T2 to be equal to T3, the detection of solenoid valve is minimum, needs T1+T2, i.e. 22ms.
The second, the detection of feather valve
After having judged solenoid valve, load condition detection apparatus starts to start feather valve, if the actuation time T1 of feather valve
It is 30ms, the impact duration T3 of feather valve is 2ms.
Therefore, predetermined amount of time T2 can choose the arbitrary value of 2-30ms, such as: if selecting T2 for 30ms, before movement
Two 30ms periods afterwards measure, i.e. CPU controls solenoid valve moment in output, start the voltage of detection and record trunk
Value, sums to collected voltage value in preceding 0ms-30ms, then starts second segment in feather valve 30ms movement moment
Voltage detecting and summation in the 30ms time, the judgement of such feather valve time-consuming 60ms in total.
Voltage value is measured in 2ms before and after moment alternatively, it is also possible to act in feather valve 30ms, and is summed.It unloads in this way
Carry valve judgement time-consuming 32ms in total.
The judgement that solenoid valve and feather valve are completed known to as a result, at most needs 100ms, at least needs 54ms.
The detection of third, A.C. contactor
A.C. contactor is finally controlled, is 2ms in the impact duration T3 of feather valve, the actuation time of A.C. contactor compares
In the case where being about 180ms, since the actuation time of A.C. contactor is relatively about 180ms, and its pick-up current is larger, generates
Pressure drop about 1V or so, the difference that we can detecte its front and back 180ms are compared, that is, can determine whether its quality.Exchange connects in this way
The detection of tentaculum needs 360ms.
Voltage value is measured in 2ms before and after moment alternatively, it is also possible to act in A.C. contactor 180ms, and is summed.This
Sample feather valve judges time-consuming 182ms in total.
The detection judgement that solenoid valve, feather valve and A.C. contactor are completed known to as a result, at most needs 460ms, at least needs
Want 236ms.
Such a actuation cycle about 236ms-460ms, substantially worthwhile moment complete a cycle, are not influencing machine just
Often operating.
The above embodiment of the present invention can according to need setting predetermined amount of time, and then the consumption of load detecting can be set
When, so as to further decrease the time-consuming of load detecting, it is possible thereby to be further reduced the review time of failure after sale, manpower
And material resources, while further promoting entire service quality after sale.
The above embodiment of the present invention can be applied to air-conditioning products, and air-conditioning products pass through this after controller device damage
Invention above-described embodiment can be instantly available accurate fault point information, can largely reduce the review of failure after sale in this way
Time, man power and material, while improving entire service quality after sale.
Fig. 6 is the schematic diagram of some embodiments of load condition detection apparatus of the present invention.As shown in fig. 6, Fig. 1 or Fig. 2 is implemented
The load condition detection apparatus 4 of example may include executing time-obtaining module 41, executing moment determining module 42, detection module 43
With condition judgment module 44, in which:
Time-obtaining module 41 is executed, executes time T1 for obtaining load, wherein it is to connect from load that load, which executes the time,
Receive the delay time executed instruction to load execution movement.
In some embodiments of the invention, it executes time-obtaining module 41 and determines and records each bear for measuring in advance
The load of load executes time T1, such as: the execution time of solenoid valve is 20ms, and the execution time of feather valve is 30ms, and is exchanged
The execution time of contactor is 180ms；The corresponding load of the load is inquired by load name or mark later and executes the time.
Execute moment determining module 42, for according to load-receipt arrive at the time of executing instruction and load execution the time
Determine that load executes moment t1.
Detection module 43, it is predetermined after predetermined amount of time T2 and load execution moment t1 before moment t1 for being executed in load
In period T2, the current average or average voltage of power bus are obtained respectively.
In some embodiments of the invention, the predetermined amount of time T2 is less than or equal to load execution time T1；It is described pre-
Section T2 that fixes time is more than or equal to the impact duration T3 that load executes the moment.
For example, being impact duration T3 (i.e. such as Fig. 4 that load executes the moment in one embodiment of the invention in Fig. 4 embodiment
It is shown the duration of dash current occur).
Condition judgment module 44, for according to the difference of two period current averages compared with current threshold knot
Whether fruit or according to the difference of two period average voltages and the comparison result of voltage threshold, judge load operating condition
Normally.
In some embodiments of the invention, load condition detection apparatus 4 is used in the case where load has multiple, every time
Execute the detection loaded to one；After a upper load executes the predetermined amount of time after the moment, sends and execute to next load
Instruction.
In some embodiments of the invention, the load condition detection apparatus 4 realizes such as any of the above-described reality for executing
Apply the operation of load state detecting method described in example (such as Fig. 3 embodiment).
It, can be in conjunction with the work of air-conditioner controller device based on the load condition detection apparatus that the above embodiment of the present invention provides
Make characteristic, the impact shake that detection air-conditioner controller device operating instant generates judges its quality.The above embodiment of the present invention exists
After air-conditioner controller device breaks down, can fast and accurately positioning failure, lay solid base to find out perfect solution
Plinth.The above embodiment of the present invention can reduce a large amount of manpower and material resources, improve after-sale service quality.
Fig. 7 is the schematic diagram of other embodiments of load condition detection apparatus of the present invention.As shown in fig. 7, Fig. 1 or Fig. 2 is real
The load condition detection apparatus 4 for applying example may include memory 48 and processor 49, in which:
Memory 48, for storing instruction.
Processor 49 is realized so that the load condition detection apparatus executes as any of the above-described for executing described instruction
The operation of load state detecting method described in embodiment (such as Fig. 3 embodiment).
The above embodiment of the present invention can be applied to air-conditioning products, and air-conditioning products pass through this after controller device damage
Invention above-described embodiment can be instantly available accurate fault point information, can largely reduce the review of failure after sale in this way
Time, man power and material, while improving entire service quality after sale.
According to another aspect of the present invention, a kind of air-conditioner controller is provided, including negative as described in above-mentioned any embodiment
It carries condition checkout gear or includes load condition detection circuit as described in above-mentioned any embodiment.
Based on the air-conditioner controller that the above embodiment of the present invention provides, its work can be detected in conjunction with the working characteristics of device
The impact shake for making moment generation, judges its quality.The above embodiment of the present invention, can be fast after air-conditioner controller failure
The accurate positioning failure of speed, takes a firm foundation to find out perfect solution.The above embodiment of the present invention can be reduced largely
Manpower and material resources, improve after-sale service quality.
According to another aspect of the present invention, a kind of computer readable storage medium, the computer-readable storage medium are provided
Matter is stored with computer instruction, and the load condition inspection as described in above-mentioned any embodiment is realized when described instruction is executed by processor
Survey method.
Based on the computer readable storage medium that the above embodiment of the present invention provides, air-conditioning products, air-conditioning can be applied to
Product is after controller device damage, and above-described embodiment can be instantly available accurate fault point information through the invention, in this way
Review time, the man power and material of failure after sale can be largely reduced, while improving entire service quality after sale.
Load condition detection apparatus described above can be implemented as executing the logical of function described herein
It can with processor, programmable logic controller (PLC) (PLC), digital signal processor (DSP), specific integrated circuit (ASIC), scene
Program gate array (FPGA) either other programmable logic device, discrete gate or transistor logic, discrete hardware components
Or it is any appropriately combined.
So far, the present invention is described in detail.In order to avoid covering design of the invention, it is public that this field institute is not described
The some details known.Those skilled in the art as described above, completely it can be appreciated how implementing technology disclosed herein
Scheme.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
Description of the invention is given for the purpose of illustration and description, and is not exhaustively or will be of the invention
It is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.It selects and retouches
It states embodiment and is to more preferably illustrate the principle of the present invention and practical application, and those skilled in the art is enable to manage
The solution present invention is to design various embodiments suitable for specific applications with various modifications.
Claims (13)
1. a kind of load state detecting method characterized by comprising
It obtains load and executes the time；
According to load-receipt at the time of executing instruction and load execute the time determine load execute the moment；
Before and after load executes the moment, power bus current or power bus voltage are obtained respectively；
The comparison result of moment front and back power bus current is executed according to load or according to power bus before and after the load execution moment
The comparison result of voltage judges whether load operating condition is normal；
Wherein, described before and after load executes the moment, it obtains power bus current respectively or power bus voltage includes: to load
For predetermined amount of time in the predetermined amount of time after the load execution moment, the electric current for obtaining power bus respectively is average before executing the moment
Value or average voltage；
It is described to execute moment front and back power supply according to the comparison result for loading execution moment front and back power bus current or according to load
The comparison result of bus voltage judges whether load operating condition normally includes: difference according to two period current averages
Value and the comparison result of current threshold or according to the difference of two period average voltages and the comparison result of voltage threshold,
Judge whether load operating condition is normal.
2. load state detecting method according to claim 1, which is characterized in that
In the case where load has multiple, the detection loaded to one is executed every time；It is predetermined after a upper load executes the moment
After period, executed instruction to next load transmission.
3. method according to claim 1 or 2, which is characterized in that the difference according to two period current averages
Value and the comparison result of current threshold, judge load operating condition whether normally include:
Whether the absolute difference for comparing two period current averages is greater than current threshold；
In the case where the absolute difference of two period current averages is greater than current threshold, the work of the load is determined
State is normal；
In the case where the absolute difference of two period current averages is not more than current threshold, the work of the load is determined
It is abnormal to make state；
It is described according to the difference of two period average voltages and the comparison result of voltage threshold, judge that load operating condition is
It is no normally to include:
Whether the absolute difference for comparing two period average voltages is greater than voltage threshold；
In the case where the absolute difference of two period average voltages is greater than voltage threshold, the work of the load is determined
State is normal；
In the case where the absolute difference of two period average voltages is not more than voltage threshold, the work of the load is determined
It is abnormal to make state.
4. a kind of load state detecting method characterized by comprising
It obtains load and executes the time；
According to load-receipt at the time of executing instruction and load execute the time determine load execute the moment；
Before and after load executes the moment, power bus current or power bus voltage are obtained respectively；
The comparison result of moment front and back power bus current is executed according to load or according to power bus before and after the load execution moment
The comparison result of voltage judges whether load operating condition is normal；
Wherein, described before and after load executes the moment, it obtains power bus current respectively or power bus voltage includes: to load
The first moment and load before executing the moment execute the second moment after the moment, obtain power bus current or power bus respectively
Voltage；
It is described to execute moment front and back power supply according to the comparison result for loading execution moment front and back power bus current or according to load
The comparison result of bus voltage judges whether load operating condition normally includes: total according to the first moment and the second moment power supply
The difference of line current and the comparison result of current threshold or according to the difference of the first moment and the second moment power bus voltage with
The comparison result of voltage threshold judges whether load operating condition is normal.
5. load state detecting method according to claim 4, which is characterized in that
In the case where load has multiple, the detection loaded to one is executed every time；It is predetermined after a upper load executes the moment
After period, executed instruction to next load transmission.
6. a kind of load condition detection apparatus characterized by comprising
Time-obtaining module is executed, executes the time for obtaining load；
Execute moment determining module, for according to load-receipt arrive at the time of executing instruction and load execute the time determine bear
It carries and executes the moment；
Detection module, for obtaining power bus current or power bus voltage respectively before and after load executes the moment；
Condition judgment module is held for executing the comparison result of moment front and back power bus current according to load or according to load
The comparison result of power bus voltage, judges whether load operating condition is normal before and after the row moment；
Wherein, time-obtaining module is executed, for executing predetermined amount of time before the moment in load and loading pre- after executing the moment
It fixes time in section, obtains the current average or average voltage of power bus respectively；
Condition judgment module, for according to the difference of two period current averages and the comparison result or root of current threshold
According to the difference of two period average voltages and the comparison result of voltage threshold, judge whether load operating condition is normal；
Wherein, the load condition detection apparatus realizes load condition as claimed in any one of claims 1-3 for executing
The operation of detection method.
7. a kind of load condition detection apparatus characterized by comprising
Time-obtaining module is executed, executes the time for obtaining load；
Execute moment determining module, for according to load-receipt arrive at the time of executing instruction and load execute the time determine bear
It carries and executes the moment；
Detection module, for obtaining power bus current or power bus voltage respectively before and after load executes the moment；
Condition judgment module is held for executing the comparison result of moment front and back power bus current according to load or according to load
The comparison result of power bus voltage, judges whether load operating condition is normal before and after the row moment；
Wherein, execute time-obtaining module, for before load executes the moment the first moment and load execute after the moment the
Two moment obtained power bus current or power bus voltage respectively；
Condition judgment module, for according to the difference of the first moment and the second moment power bus current compared with current threshold
As a result the comparison result of difference and voltage threshold or according to the first moment and the second moment power bus voltage, judges to load
Whether working condition is normal；
Wherein, the load condition detection apparatus realizes load state detecting method as described in claim 4 or 5 for executing
Operation.
8. a kind of load condition detection apparatus characterized by comprising
Memory, for storing instruction；
Processor, for executing described instruction, so that described device, which executes, realizes according to any one of claims 1 to 5 bear
Carry the operation of condition detection method.
9. a kind of load condition detection circuit, which is characterized in that including power supply, current detection means, at least one load and
Load condition detection apparatus as described in any one of claim 6-8, in which:
Current detection means is arranged on power bus, and load setting is in the loop；
Current detection means is sent to load condition detection apparatus for measuring power bus current, and by power bus current.
10. a kind of load condition detection circuit, which is characterized in that including power supply, electrical appliance, voltage check device, at least one
Load and the load condition detection apparatus as described in any one of claim 6-8, in which:
Electrical appliance is arranged on power bus, and load setting is in the loop；
The voltage at electrical appliance both ends is sent to load condition inspection for measuring the voltage at electrical appliance both ends by voltage check device
Survey device；
Load condition detection apparatus, for using the voltage at electrical appliance both ends as power bus voltage.
11. load condition detection circuit according to claim 10, which is characterized in that the electrical appliance is diode.
12. a kind of air-conditioner controller, which is characterized in that including the load condition detection as described in any one of claim 6-8
Device includes load condition detection circuit as described in any one of claim 9-11.
13. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer to refer to
It enables, load state detecting method according to any one of claims 1 to 5 is realized when described instruction is executed by processor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810061849.8A CN108332353B (en) | 2018-01-22 | 2018-01-22 | Load state detecting method, device and circuit, air-conditioner controller |
| PCT/CN2018/101286 WO2019140901A1 (en) | 2018-01-22 | 2018-08-20 | Load state detection method, device and circuit, and air conditioner controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810061849.8A CN108332353B (en) | 2018-01-22 | 2018-01-22 | Load state detecting method, device and circuit, air-conditioner controller |
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| CN108332353B (en) * | 2018-01-22 | 2019-10-22 | 珠海格力电器股份有限公司 | Load state detecting method, device and circuit, air-conditioner controller |
| CN109932979A (en) * | 2019-04-22 | 2019-06-25 | 嘉应学院 | A kind of electrical equipment remote monitoring system |
| CN110441584B (en) * | 2019-08-26 | 2020-11-17 | 珠海格力电器股份有限公司 | Equipment running state monitoring method, device, storage medium and system |
| CN110908844B (en) * | 2019-10-24 | 2022-03-08 | 珠海格力电器股份有限公司 | Arc fault detection method and device, computer readable storage medium and socket |
| CN111720951A (en) * | 2020-06-01 | 2020-09-29 | 青岛海尔空调器有限总公司 | Fault diagnosis method and device for air conditioner |
| CN111998447A (en) * | 2020-08-18 | 2020-11-27 | 深圳中集天达吉荣航空制冷有限公司 | Aircraft ground air conditioning unit and operation data processing method |
| CN113391588A (en) * | 2021-06-28 | 2021-09-14 | 佛山市顺德区美的电子科技有限公司 | Household appliance, self-checking control method and system thereof and storage medium |
| CN114935199A (en) * | 2022-05-19 | 2022-08-23 | 青岛海信日立空调系统有限公司 | Mobile device, air conditioner and air conditioning system |
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| JP3654514B2 (en) * | 2001-02-02 | 2005-06-02 | 東芝Ｉｔコントロールシステム株式会社 | Power converter |
| CN1735811A (en) * | 2002-12-05 | 2006-02-15 | 穆尔蒂布拉斯家电公司 | Diagnosis system for household electric appliances |
| JP2012099285A (en) * | 2010-10-29 | 2012-05-24 | Fuji Electric Co Ltd | State monitor of switch |
| WO2012118830A2 (en) * | 2011-02-28 | 2012-09-07 | Arensmeier Jeffrey N | Residential solutions hvac monitoring and diagnosis |
| CN102705954B (en) * | 2011-07-28 | 2014-09-03 | 宁波奥克斯电气有限公司 | Internet-based automatic fault repair and detection method of frequency-conversion air conditioner |
| JP5983171B2 (en) * | 2012-08-10 | 2016-08-31 | 株式会社Ｇｓユアサ | Switch failure diagnosis device, power storage device |
| CN104950238B (en) * | 2014-03-24 | 2018-05-08 | 比亚迪股份有限公司 | The fault detection method and device of transverter and its IGBT drive circuit |
| CN104090234B (en) * | 2014-07-28 | 2017-03-01 | 珠海格力电器股份有限公司 | The test circuit of arc-fault circuit interrupter and method |
| CN105842554B (en) * | 2016-01-29 | 2019-01-11 | 维沃移动通信有限公司 | Hardware fault detection method, detection system and the intelligent terminal of intelligent terminal |
| CN108051748A (en) * | 2016-10-20 | 2018-05-18 | 乐视生态汽车（浙江）有限公司 | Abort situation detection method, device, accumulator cell assembly and motor vehicle |
| CN107401883A (en) * | 2017-07-19 | 2017-11-28 | 深圳市傲天医疗智能系统有限公司 | Refrigerator self checking method and self-checking system |
| CN108332353B (en) * | 2018-01-22 | 2019-10-22 | 珠海格力电器股份有限公司 | Load state detecting method, device and circuit, air-conditioner controller |
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