CN104568698A - Device and method for detecting state of filter screen in air conditioner - Google Patents
Device and method for detecting state of filter screen in air conditioner Download PDFInfo
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- CN104568698A CN104568698A CN201410834438.XA CN201410834438A CN104568698A CN 104568698 A CN104568698 A CN 104568698A CN 201410834438 A CN201410834438 A CN 201410834438A CN 104568698 A CN104568698 A CN 104568698A
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Abstract
The invention discloses a device and a method for detecting the state of a filter screen in an air conditioner. The device comprises blades arranged in an air duct of the air conditioner, a sensor for detecting a permanent magnet, a prompting module and a control module, wherein the permanent magnet is arranged among the blades; the sensor generates a detection signal according to the distance from the permanent magnet, the control module is connected with the sensor and the prompting module respectively, controls a fan to rotate at a preset rotation speed, generates a current airflow proportion coefficient according to the detection signal, judges whether the filter screen in the air conditioner is filled up with dust or not according to the current airflow proportion coefficient and a default airflow proportion coefficient and makes a prompt through the prompting module after the condition that the filter screen is filled up with dust is judged. As a result, the device for detecting the state of the filter screen in the air conditioner judges the current dust accumulation degree of the filter screen according to the airflow speed in the air duct, has higher detection accuracy and low cost, is not influenced by air quality, improves the experience of users, and is simple and feasible.
Description
Technical field
The present invention relates to a kind of technical field of electric appliances, particularly the detection method of filter network state in the checkout gear of filter network state and a kind of air-conditioner in a kind of air-conditioner.
Background technology
Relevant air treatment facility such as clarifier, air-conditioner are substantially all equipped with filter screen.Filter screen can carry out filtration treatment to particle etc., but after service time is longer, filter screen will laying dust.Filter screen laying dust can affect air-treatment effect on the one hand, and the filter screen of serious laying dust will produce harmful effect to health as changed not in time on the other hand.
Accumulated running time reminding user to replace filter screen usually according to air-conditioner in correlation technique.Specifically, timing is carried out to the service time of air-conditioner, when timing time is greater than Preset Time, the filter screen of reminding user cleaning air-conditioner.But its shortcoming existed to detect the current laying dust degree of filter screen, and the different place of air pollution degree adopts identical Preset Time, thus accuracy in detection is by the impact of air quality.Therefore, there are the needs improved in correlation technique.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, one object of the present invention is the checkout gear proposing filter network state in a kind of air-conditioner, can detect the current laying dust degree of filter screen, and accuracy in detection is not by the impact of air quality.
Another object of the present invention is the detection method proposing filter network state in a kind of air-conditioner.
The checkout gear of filter network state in the air-conditioner that proposes of embodiment, comprising: be arranged on the fan blade among air-conditioned wind tunnel, wherein, is provided with permanent magnet among described fan blade according to an aspect of the present invention; Detect the sensor of described permanent magnet, described sensor produces detection signal according to the distance with described permanent magnet; Reminding module; Control module, described control module is connected with described reminding module with described sensor respectively, described control module controls blower fan and rotates with desired speed, and generate current air-flow proportionality coefficient according to described detection signal, and judge that in described air-conditioner, whether filter screen dust-full according to described current air-flow proportionality coefficient and acquiescence air-flow proportionality coefficient, and judge dust-full after pointed out by described reminding module.
According to the checkout gear of filter network state in the air-conditioner that the embodiment of the present invention proposes, control module controls blower fan and rotates with desired speed, and generate current air-flow proportionality coefficient according to the detection signal that sensor produces, and judge that in air-conditioner, whether filter screen dust-full according to current air-flow proportionality coefficient and acquiescence air-flow proportionality coefficient, and judge dust-full after pointed out by reminding module.Thus, this checkout gear can judge the current dust stratification degree of filter screen according to the air velocity in air channel, and accuracy in detection is higher and not by the impact of air quality, promote the experience of user, and this checkout gear is simple, with low cost.
According to one embodiment of present invention, when described current air-flow proportionality coefficient is less than or equal to default ratio with the ratio of acquiescence air-flow proportionality coefficient, described control module judges that in described air-conditioner, filter screen is dust-full.Wherein, described default ratio can be 0.5-0.7.
According to a specific embodiment of the present invention, described sensor can be Hall element.
According to another embodiment of the invention, described control module, after receiving test instruction, controls described blower fan with described desired speed and rotates, and generate described acquiescence air-flow proportionality coefficient according to the detection signal that described sensor detects.
The detection method of filter network state in the air-conditioner that proposes of embodiment according to a further aspect of the invention, described air-conditioner comprises the fan blade be arranged among air-conditioned wind tunnel, among described fan blade, permanent magnet is installed, detect the sensor of described permanent magnet, described detection method comprises the following steps: control blower fan and rotate with desired speed; Distance according to described sensor and described permanent magnet produces detection signal; Generate current air-flow proportionality coefficient according to described detection signal, and judge that in described air-conditioner, whether filter screen is dust-full according to described current air-flow proportionality coefficient and acquiescence air-flow proportionality coefficient, and judging that dust-full rear line is pointed out.
According to the detection method of filter network state in the air-conditioner that the embodiment of the present invention proposes, control blower fan to rotate with desired speed, and generate current air-flow proportionality coefficient according to detection signal, and judge that in air-conditioner, whether filter screen dust-full according to current air-flow proportionality coefficient and acquiescence air-flow proportionality coefficient, and judge dust-full after pointed out by reminding module.Thus, this detection method can judge the current dust stratification degree of filter screen according to the air velocity in air channel, and accuracy in detection is higher and not by the impact of air quality, promote the experience of user, and this detection method is simple.
According to one embodiment of present invention, describedly to judge in described air-conditioner that whether filter screen is dust-full according to described current air-flow proportionality coefficient and acquiescence air-flow proportionality coefficient and specifically comprise: when the ratio of described current air-flow proportionality coefficient and acquiescence air-flow proportionality coefficient is less than or equal to default ratio, judge that in described air-conditioner, filter screen is dust-full.Wherein, described default ratio can be 0.5-0.7.
According to a specific embodiment of the present invention, described sensor can be Hall element.
According to another embodiment of the invention, in described air-conditioner, the detection method of filter network state also comprises: after receiving test instruction, controls described blower fan rotate with described desired speed; Detection signal according to producing generates described acquiescence air-flow proportionality coefficient.
Accompanying drawing explanation
Fig. 1 is the block diagram of the checkout gear of filter network state in the air-conditioner according to the embodiment of the present invention;
Fig. 2 is the part body schematic diagram of the checkout gear of filter network state in the air-conditioner according to the embodiment of the present invention; And
Fig. 3 is the flow chart of the detection method of filter network state in the air-conditioner according to the embodiment of the present invention; And
Fig. 4 is the flow chart of the detection method of filter network state in the air-conditioner according to the present invention's specific embodiment.
Reference numeral:
Fan blade 10, permanent magnet 100, sensor 20, reminding module 30, control module 40 and filter screen 50.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Checkout gear and the method for filter network state in the air-conditioner of the embodiment of the present invention are described below with reference to Fig. 1-Fig. 4.
As Figure 1-Figure 2, comprise according to the checkout gear of filter network state in the air-conditioner of the embodiment of the present invention: fan blade 10, sensor 20, reminding module 30 and control module 40.
Wherein, fan blade 10 is arranged among air-conditioned wind tunnel, is provided with permanent magnet 100 among fan blade 10, and the rotating speed of fan blade 10 can along with the change of the air velocity of gas in air channel.Sensor 20 is for detecting permanent magnet 100, and sensor 20 produces detection signal according to the distance with permanent magnet 20.
Control module 40 is connected with reminding module 30 with sensor 20 respectively, control module 40 controls blower fan and rotates with desired speed N, and generate current air-flow proportionality coefficient C according to detection signal, and judge that in air-conditioner, whether filter screen dust-full according to current air-flow proportionality coefficient C and acquiescence air-flow Proportional coefficient K, and judge dust-full after pointed out by reminding module 30.That is, control module 40 is for processing detection signal and generating current air-flow proportionality coefficient C, and current air-flow proportionality coefficient C and acquiescence air-flow Proportional coefficient K are compared further, and judge that in air-conditioner, whether filter screen is dust-full according to comparative result.
It should be noted that, as the embodiment of Fig. 2, fan blade 10 can be inlaid on any one blade of fan blade 10, fan blade 10 drives permanent magnet 100 synchronous axial system, and sensor 20 can be arranged on fixed position, like this, when fan blade 10 drives permanent magnet 100 to rotate, sensor 20 can sense permanent magnet 100 or away from permanent magnet 100.Particularly, when in the induction range that permanent magnet 100 turns to sensor 20, sensor 20 can sense permanent magnet 100; When permanent magnet 100 leaves the induction range of sensor 20, sensor 20 is responded to less than permanent magnet 100.
In addition, fan blade 10 is arranged among the air channel after filter screen 50, and gas enters among air channel by filter screen 50.Thus, in air channel, the laying dust degree by filter screen 50 affects by the air velocity of gas, if the laying dust of filter screen 50 is more, air velocity is lower accordingly; If the laying dust of filter screen 50 is less, air velocity is higher accordingly.Also it should be noted that, the air velocity in air channel at least within the scope of 0m/s-12m/s with the rotating speed direct proportional linear relation of fan blade 10.
Specifically, air-conditioner is at every turn after receiving starting-up signal or off signal, the dust-full trace routine of automatic startup filter screen, control module 40 with desired speed N for control objectives carries out closed-loop drive control to blower fan, blower fan is dried in air channel with desired speed N, fan blade 10 will rotate in the gas flow, the rotating speed of fan blade 10 is directly proportional to air velocity, be inlaid in the permanent magnet 100 in fan blade 10 and fan blade 10 synchronous axial system, detection signal and the pulse signal of low and high level can be exported after sensor 20 senses changes of magnetic field, when sensor 20 senses the magnetic field of permanent magnet 100, sensor 20 exports the detection signal of high level, when permanent magnet 100 cannot sense the magnetic field of permanent magnet 100, the detection signal of sensor 20 output low level, like this, the frequency of detection signal also with air velocity direct proportionality.Detection signal is transferred to control module 40 by sensor 20, the situation of change of air velocity can be obtained after control module 40 pairs of detection signals process, the situation of change of air velocity is current air-flow proportionality coefficient C in embodiments of the present invention, control module 40 can calculate difference between current air-flow proportionality coefficient C and acquiescence air-flow Proportional coefficient K or ratio, and the crushing situation of filter screen 50 is judged according to difference or ratio, and then judge that whether filter screen 50 is dust-full, if dust-full, then control module 40 controls reminding module 30 and points out to user; If do not have dust-full, then control module 40 controls air-conditioner and normally runs, and re-executes the dust-full trace routine of filter screen.Wherein, current air-flow proportionality coefficient C can be the number of high level in detection signal in the frequency of detection signal or Preset Time.
Thus, the checkout gear of filter network state in the air-conditioner that the embodiment of the present invention proposes, control module controls blower fan and rotates with desired speed, and generate current air-flow proportionality coefficient according to the detection signal that sensor produces, and judge that in air-conditioner, whether filter screen dust-full according to current air-flow proportionality coefficient and acquiescence air-flow proportionality coefficient, and judge dust-full after pointed out by reminding module.Thus this checkout gear can judge the current dust stratification degree of filter screen according to the air velocity in air channel, accuracy in detection is higher and not by the impact of air quality, promote the experience of user, and this checkout gear is simple, with low cost.
According to a specific embodiment of the present invention, sensor 20 can be Hall element.Fan blade 10 can be low resistance fan blade.Reminding module 30 can be the terminal demonstration such as display screen, indicator lamp element.Control module 40 can be the processor, single-chip microcomputer etc. with data processing, analytic function, and control module 40 can be arranged separately or setting integrated with the main control chip of air-conditioner.
In addition, according to one embodiment of present invention, the current rotating speed n of control module 40 also for Real-time Obtaining blower fan before acquisition testing signal, and judge that the absolute value of the difference between the current rotating speed n of blower fan and desired speed N is | whether n-N| is less than or equal to predetermined threshold value such as 5, if | n-N|≤5, then represent that current air-conditioner has met dust-full test request, start acquisition testing signal; If | n-N|>5, then continue to adjust the rotating speed of blower fan.That is, time in the preset range that the rotating speed of blower fan maintains desired speed N, control module 40 just starts acquisition testing signal, to ensure the degree of accuracy of dust-full detection.
Particularly, according to one embodiment of present invention, when current air-flow proportionality coefficient C is less than or equal to default ratio with the ratio of acquiescence air-flow Proportional coefficient K, control module 40 judges that in air-conditioner, filter screen is dust-full.Wherein, default ratio can be 0.5-0.7.
That is, control module 40 is after generating current air-flow proportionality coefficient C according to detection signal, current air-flow proportionality coefficient C and the ratio giving tacit consent to air-flow Proportional coefficient K can be calculated, and judge whether ratio C/K is less than or equal to default proportionality as 0.6, if, then in air-conditioner, filter screen is dust-full, points out dust-full by reminding module 30 to user; If not, air-conditioner normally runs, and upper once receive starting-up signal or off signal time re-execute the dust-full trace routine of filter screen.
In addition, according to one embodiment of present invention, default ratio also can carry out different settings according to different situations, to meet the application requirement of concrete condition.Such as, the checkout gear of the embodiment of the present invention also whether can exist according to the ratio in judgement filter screen of current air-flow proportionality coefficient C and acquiescence air-flow Proportional coefficient K or the installment state of filter screen whether normal.Wherein, it should be noted that, the filter screen of new machine is generally by film wrapped, and do not note this situation as user and directly start shooting, long-play air-conditioner can cause motor operating state abnormal parameters because load is not mated, affect complete machine quality.
Further, according to another embodiment of the invention, control module 40, after receiving test instruction, controls blower fan with desired speed N and rotates, and generates acquiescence air-flow Proportional coefficient K according to the detection signal that sensor 20 detects.
That is, when air-conditioner normally uses, after powering on for the first time, control module 40 can automatically perform test program or perform test program according to the test instruction of user's input, and control module 40, after entering trace routine, first controls blower fan and runs according to test gear, namely first control blower fan to rotate according to desired speed N, in the stabilization of speed of blower fan after desired speed N, obtain the detection signal that sensor 20 detects, and generate acquiescence air-flow Proportional coefficient K according to detection signal.Afterwards, the blower fan desired speed N in test process and acquiescence air-flow Proportional coefficient K are stored in the memory space of control module 40.Thus, control module 40 completes test to the initial laying dust degree of filter screen, study and storage.
Certainly, be understandable that, acquiescence air-flow Proportional coefficient K also directly can be pre-stored in the memory space of control module 40 when complete machine production development.Wherein, acquiescence air-flow Proportional coefficient K can be multiple, the acquiescence air-flow Proportional coefficient K that different situations are corresponding different, thus meets the application requirement of concrete condition.
Particularly, control module 40 can be used for judging filter screen whether exist or the installment state of filter screen whether normal.For example, when supposing that filter screen exists, the acquiescence air-flow Proportional coefficient K that desired speed N is corresponding is K0, such control module 40 first controls blower fan and rotates with desired speed N after receiving start-up command, and generate current air-flow proportionality coefficient C according to detection signal, if the difference between current air-flow proportionality coefficient C and acquiescence air-flow Proportional coefficient K in preset range, then judges that filter screen exists; If the difference between current air-flow proportionality coefficient C and acquiescence air-flow Proportional coefficient K not in preset range, then judges that filter screen does not exist.
Based on above-described embodiment, the embodiment of the present invention also proposed the detection method of filter network state in a kind of air-conditioner.
Fig. 3 is the flow chart of the detection method of filter network state in the air-conditioner according to the embodiment of the present invention.Air-conditioner can comprise the fan blade be arranged among air-conditioned wind tunnel, is provided with permanent magnet among fan blade, detects the sensor of permanent magnet.As shown in Figure 3, detection method comprises the following steps:
S1: control blower fan and rotate with desired speed N.
S2: the distance according to sensor and permanent magnet produces detection signal.
According to a specific embodiment of the present invention, sensor can be Hall element, and fan blade can be low resistance fan blade.
S3: generate current air-flow proportionality coefficient C according to detection signal, and judge that in air-conditioner, whether filter screen is dust-full according to current air-flow proportionality coefficient C and acquiescence air-flow Proportional coefficient K, and judging that dust-full rear line is pointed out.
Specifically, each after receiving starting-up signal or off signal, the dust-full trace routine of automatic startup filter screen, with desired speed N for control objectives carries out closed-loop drive control to blower fan, blower fan is dried in air channel with desired speed N, fan blade will rotate in the gas flow, the rotating speed of fan blade is directly proportional to air velocity, be inlaid in the permanent magnet in fan blade and fan blade synchronous axial system, detection signal and the pulse signal of low and high level can be exported after sensor sensing to changes of magnetic field, when sensor sensing is to the magnetic field of permanent magnet, sensor exports the detection signal of high level; When permanent magnet cannot sense the magnetic field of permanent magnet, the detection signal of transducers output low-level, like this, the frequency of detection signal also with air velocity direct proportionality.Afterwards, the situation of change of air velocity can be obtained after detection signal is processed, the situation of change of air velocity is current air-flow proportionality coefficient C in embodiments of the present invention, calculate the difference between current air-flow proportionality coefficient C and acquiescence air-flow Proportional coefficient K or ratio, and the crushing situation of filter screen is judged according to difference or ratio, and then judge that whether filter screen is dust-full, if dust-full, then the reminding module controlling air-conditioner is pointed out to user; If do not have dust-full, then control air-conditioner and normally run, and re-execute the dust-full trace routine of filter screen.Wherein, current air-flow proportionality coefficient C can be the number of high level in detection signal in the frequency of detection signal or Preset Time.
Thus, the detection method of filter network state in the air-conditioner that the embodiment of the present invention proposes, control blower fan to rotate with desired speed, and generate current air-flow proportionality coefficient according to detection signal, and judge that in air-conditioner, whether filter screen dust-full according to current air-flow proportionality coefficient and acquiescence air-flow proportionality coefficient, and judge dust-full after pointed out by reminding module.Thus this detection method can judge the current dust stratification degree of filter screen according to the air velocity in air channel, accuracy in detection is higher and not by the impact of air quality, promote the experience of user, and this detection method is simple.
Wherein, according to one embodiment of present invention, before generate current air-flow proportionality coefficient according to detection signal, in air-conditioner, the detection method of filter network state also comprises: the current rotating speed n of Real-time Obtaining blower fan, and judge that the absolute value of the difference between the current rotating speed n of blower fan and desired speed N is | whether n-N| is less than or equal to predetermined threshold value such as 5, if | n-N|≤5, then represent that current air-conditioner has met dust-full test request, starts acquisition testing signal; If | n-N|>5, then continue to adjust the rotating speed of blower fan.That is, time in the preset range that the rotating speed of blower fan maintains desired speed N, just start acquisition testing signal, to ensure the degree of accuracy of dust-full detection.
Particularly, according to one embodiment of present invention, judge that in air-conditioner, the whether dust-full i.e. step S3 of filter screen specifically comprises according to current air-flow proportionality coefficient and acquiescence air-flow proportionality coefficient: when current air-flow proportionality coefficient C is less than or equal to default ratio with the ratio of acquiescence air-flow Proportional coefficient K, judge that in air-conditioner, filter screen is dust-full.Wherein, default ratio can be 0.5-0.7.
That is, after generate current air-flow proportionality coefficient C according to detection signal, current air-flow proportionality coefficient C and the ratio giving tacit consent to air-flow Proportional coefficient K can be calculated, and judge whether ratio is less than or equal to default proportionality as 0.6 to ratio C/K, if, then judge that in air-conditioner, filter screen is dust-full, point out to user dust-full; If not, air-conditioner normally runs, and upper once receive starting-up signal or off signal time re-execute the dust-full trace routine of filter screen.
In addition, according to one embodiment of present invention, default ratio also can carry out different settings according to different situations, to meet the application requirement of concrete condition.Such as, the detection method of the embodiment of the present invention also whether can exist according to the ratio in judgement filter screen of current air-flow proportionality coefficient C and acquiescence air-flow Proportional coefficient K or the installment state of filter screen whether normal.Wherein, it should be noted that, the filter screen of new machine is generally by film wrapped, and do not note this situation as user and directly start shooting, long-play air-conditioner can cause motor operating state abnormal parameters because load is not mated, affect complete machine quality.
Further, according to another embodiment of the invention, in air-conditioner, the detection method of filter network state also comprises: after receiving test instruction, controls blower fan rotate with desired speed N, and generates acquiescence air-flow Proportional coefficient K according to the detection signal that sensor detects.
That is, when air-conditioner normally uses, after powering on for the first time, test program can be automatically performed or perform test program according to the test instruction of user's input, after entering trace routine, first control blower fan and run according to test gear, namely first control blower fan to rotate according to desired speed N, in the stabilization of speed of blower fan after desired speed N, obtain the detection signal that sensor detects, and generate acquiescence air-flow Proportional coefficient K according to detection signal.Afterwards, the blower fan desired speed N in test process and acquiescence air-flow Proportional coefficient K are stored in the memory space of air-conditioner.Thus, air-conditioner completes test to the initial laying dust degree of filter screen, study and storage.
Certainly, be understandable that, acquiescence air-flow Proportional coefficient K also directly can be pre-stored in the memory space of air-conditioner when complete machine production development.Wherein, acquiescence air-flow Proportional coefficient K can be multiple, the acquiescence air-flow Proportional coefficient K that different situations are corresponding different, thus meets the application requirement of concrete condition.
Particularly, the detection method of the embodiment of the present invention can be used for judging filter screen whether exist or the installment state of filter screen whether normal.For example, when supposing that filter screen exists, the acquiescence air-flow Proportional coefficient K that desired speed N is corresponding is K0, after receiving start-up command, first control blower fan like this rotate with desired speed N, and generate current air-flow proportionality coefficient C according to detection signal, if the difference between current air-flow proportionality coefficient C and acquiescence air-flow Proportional coefficient K in preset range, then judges that filter screen exists; If the difference between current air-flow proportionality coefficient C and acquiescence air-flow Proportional coefficient K not in preset range, then judges that filter screen does not exist.
In sum, as described in Figure 4, specifically step is comprised according to the detection method of filter network state in the air-conditioner of the embodiment of the present invention:
S101: system electrification, initializes.
S102: start test program, controls blower fan with desired speed N and rotates, and generates acquiescence air-flow Proportional coefficient K according to the detection signal that sensor detects.
Particularly, desired speed N and acquiescence air-flow Proportional coefficient K are stored in the memory space of air-conditioner.
S103: after receiving starting-up signal or off signal, starts dust-full trace routine.
S104: with desired speed N for control objectives carries out closed-loop drive control to blower fan, the current rotating speed n of Real-time Obtaining blower fan.
S105: judge the absolute value of the difference between the current rotating speed n of blower fan and desired speed N namely | whether n-N| is less than or equal to predetermined threshold value such as 5.If so, then step S106 is performed; If not, then step S104 is returned.
S106: generate current air-flow proportionality coefficient C according to detection signal.
S107: judge whether the ratio C/K of current air-flow proportionality coefficient C and acquiescence air-flow Proportional coefficient K is less than or equal to default proportionality as 0.6.If so, then step S108 is performed; If not, then step S103 is returned.
S108: point out the filter screen of air-conditioner dust-full to user.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this description, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random access memory (RAM), read-only storage (ROM), erasablely edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk read-only storage (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanner to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only storage, disk or CD etc.Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. the checkout gear of filter network state in air-conditioner, is characterized in that, comprising:
Be arranged on the fan blade among air-conditioned wind tunnel, wherein, among described fan blade, permanent magnet be installed;
Detect the sensor of described permanent magnet, described sensor produces detection signal according to the distance with described permanent magnet;
Reminding module; And
Control module, described control module is connected with described reminding module with described sensor respectively, described control module controls blower fan and rotates with desired speed, and generate current air-flow proportionality coefficient according to described detection signal, and judge that in described air-conditioner, whether filter screen dust-full according to described current air-flow proportionality coefficient and acquiescence air-flow proportionality coefficient, and judge dust-full after pointed out by described reminding module.
2. the checkout gear of filter network state in air-conditioner as claimed in claim 1, is characterized in that, wherein,
When described current air-flow proportionality coefficient is less than or equal to default ratio with the ratio of acquiescence air-flow proportionality coefficient, described control module judges that in described air-conditioner, filter screen is dust-full.
3. the checkout gear of filter network state in air-conditioner as claimed in claim 1, it is characterized in that, described sensor is Hall element.
4. the checkout gear of filter network state in air-conditioner as claimed in claim 1, it is characterized in that, described control module, after receiving test instruction, controls described blower fan with described desired speed and rotates, and generate described acquiescence air-flow proportionality coefficient according to the detection signal that described sensor detects.
5. the checkout gear of filter network state in air-conditioner as claimed in claim 2, it is characterized in that, described default ratio is 0.5-0.7.
6. the detection method of filter network state in air-conditioner, it is characterized in that, described air-conditioner comprises the fan blade be arranged among air-conditioned wind tunnel, is provided with permanent magnet among described fan blade, detects the sensor of described permanent magnet, and described detection method comprises the following steps:
Control blower fan to rotate with desired speed;
Distance according to described sensor and described permanent magnet produces detection signal;
Generate current air-flow proportionality coefficient according to described detection signal, and judge that in described air-conditioner, whether filter screen is dust-full according to described current air-flow proportionality coefficient and acquiescence air-flow proportionality coefficient, and judging that dust-full rear line is pointed out.
7. the detection method of filter network state in air-conditioner as claimed in claim 6, is characterized in that, describedly to judge in described air-conditioner that whether filter screen is dust-full according to described current air-flow proportionality coefficient and acquiescence air-flow proportionality coefficient and specifically comprises:
When described current air-flow proportionality coefficient is less than or equal to default ratio with the ratio of acquiescence air-flow proportionality coefficient, judge that in described air-conditioner, filter screen is dust-full.
8. the detection method of filter network state in air-conditioner as claimed in claim 6, it is characterized in that, described sensor is Hall element.
9. the detection method of filter network state in air-conditioner as claimed in claim 6, is characterized in that, also comprise:
After receiving test instruction, control described blower fan with described desired speed and rotate;
Detection signal according to producing generates described acquiescence air-flow proportionality coefficient.
10. the detection method of filter network state in air-conditioner as claimed in claim 7, it is characterized in that, described default ratio is 0.5-0.7.
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| CN114216211A (en) * | 2021-12-16 | 2022-03-22 | 珠海格力电器股份有限公司 | Filter screen filth blockage detection assembly of fresh air conditioner, fresh air conditioner and control method of fresh air conditioner |
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