CN101546177B - Human induction shutdown method for air conditioner - Google Patents

Abstract

The invention provides a human induction shutdown method for an air conditioner. The air conditioner comprises a microprocessor, a human induction probe which receives control signals of the microprocessor and sends data signals to the microprocessor, and a control signal generating part which sends control signals to the microprocessor. The human induction shutdown method for the air conditioner comprises the following steps: detecting whether a person leaves a detection environment or not through the human induction probe; beginning to time by the microprocessor after the human induction probe detects that the person leaves the detection environment; before reaching a set time, detecting whether a person enters the detection environment or not; and entering a shutdown procedure if no one enters the detection environment when the set time is reached. The human induction shutdown method for the air conditioner can automatically shutdown various parts of an appliance one by one to complete the shutdown procedure by adopting reasonable measures according to the set delay time and the running state of the air conditioner, saves energy and ensures the safety of the appliance.

Description

The human induction shutdown method of air conditioner

Technical field

The invention belongs to field of air conditioning, relate in particular to a kind of intelligent air condition that possesses the human induction shutdown function.

Background technology

Air-conditioning is widely used in various occasions, because its power consumption is bigger, therefore brings very big energy pressure.Especially after domestic air conditioning was generally used, electricity consumption of resident was very big, caused many cities the situation of rationing the power supply even having to have a power failure to occur in summer, brought negative effect for life and production.On the other hand, use in the process of air-conditioning, particularly in public places in reality; Like public dining room, meeting room, office, hotel etc., after withdrawing from a room, the people often forgets and closes air-conditioning that this carelessness has aggravated the consumption of air-conditioning to the energy; Therefore; Air-conditioning the fabricator improve air-conditioning, and initial manual-lock air conditioning mode is improved, and designs the intelligent air-conditioning of closing automatically.For example Chinese invention patent discloses CN1936444A number and discloses the air-conditioning that a kind of infrared temperature-test technology is controlled, and it has disclosed the function of human induction shutdown, yet there are following two point defects at least in this human induction shutdown function:

The first, before the shutdown " time-delay " be not set automatically, for example; If the user of short durationly left the bedroom two minutes, air-conditioning will be closed immediately automatically so, treats that the user returns after the bedroom; Air-conditioning must be opened again once more; Serviceable life, the especially child that this frequent switching on and shutting down meeting the reduces air-conditioning continuous automatic switch of air-conditioning that the air-conditioning place causes of frequently coming in and going out has influence on serviceable life of air-conditioning more.

The second, closing of air conditioner will meet certain sequence, below is that the shutdown under the different operating modes of air-conditioning requires:

(1) under the air-conditioning heating mode, when needing shutdown, if the electrical heating operation; Should close electrical heating close compressor more earlier, when evaporator temperature less than Celsius 45 the degree below after, close inner blower, air door; Just close four-way valve at last, accomplish whole shutdown process.If the pass compressor can constitute a threat to the safety of air-conditioning after not closing electrical heating earlier; If compressor, four-way valve close to close simultaneously compressor, pipeline are constituted influence; If evaporator temperature is higher than 45 degrees centigrade, then open automatic mode next time, air-conditioning can be judged by accident at present, and the result is that air-conditioning can not heat.

(2) air conditioner is in defrost process, when needing shutdown, should treat that defrost finishes, and can close other electric component, otherwise is unfavorable for the unlatching that heats next time.

In a word; No matter be that Chinese invention patent discloses CN1936444A number or existing other infrared human body induction switch; All can not accomplish to have ready conditions, close according to priority each different electric components; All only be all electric components that cut off the power supply of air-conditioning simply or close air-conditioning simultaneously, this way can make the use of air-conditioning break down, even influences air-conditioning life-span and security.And prior art all is to let infrared detection device in running order all the time, wastes certain electric energy.

Therefore, provide a kind of and can realize under reasonable terms that the people feels the real necessity that belongs to of the method for closing air-conditioning.

Summary of the invention

The object of the present invention is to provide a kind of human induction shutdown method of air conditioner, be intended to solve exist in the prior art can not under reasonable terms, close this technical matters of air-conditioning automatically.

The human induction shutdown method of air conditioner of the present invention may further comprise the steps:

Step a feels the probe detection people through the people and whether leaves testing environment;

Step b after the people feels probe and detects the people and leave testing environment, is picked up counting by microprocessor;

Step c, whether the someone enters into testing environment to arrive the preceding detection of setting-up time;

Steps d enters into testing environment then gets into shutdown programm if arrive behind the setting-up time nobody;

Wherein steps d may further comprise the steps:

Steps d 1 judges whether air conditioner defrosts, if defrost, then continues defrosting and finishes until defrosting;

Steps d 2 finishes if air conditioner does not defrost or defrosts, and judges then whether electrical heating moves, if moving electrical heating, then closes electrical heating;

Steps d 3 if the electrical heating off-duty is perhaps closed, is then closed the compressor in the air conditioner;

Whether steps d 4, the temperature of judging evaporator less than design temperature, after the temperature of evaporator drops to below the design temperature, and close chamber's inner blower and air door;

Steps d 5 judges that whether the shut-in time of compressor surpasses Preset Time, after office to be compressed surpasses Preset Time at the time of closing, closes four-way valve and the people feels probe.

The human induction shutdown method of air conditioner provided by the invention can adopt rational measure to close each electric component one by one and accomplish shutdown programm automatically according to the delay time that is provided with and the running status of air-conditioning, has both practiced thrift the energy, can guarantee security appliance again.

Description of drawings

Fig. 1 realizes hardware configuration schematic block diagram of the present invention;

Fig. 2 realizes another hardware configuration schematic block diagram of the present invention;

Fig. 3 is the process flow diagram of inventor's induction shutdown method;

Fig. 4 is the detailed step of shutdown programm among Fig. 3.

Embodiment

For the purpose, technical scheme and the advantage that make invention is clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.

Shown in Fig. 1, the related air conditioner human induction shutdown method of present embodiment is accomplished by following critical piece: the control signal production part 12 that is arranged on microprocessor 10 in the air conditioner, receives microprocessor 10 control signals and feel probe 11, transmit control signal to microprocessor to the people that microprocessor 10 sends data-signals.The people feels probe and 11 can be integrated on the air conditioner, can certainly be distributed in other position of the interior space, so that monitor's active situation more accurately; Control signal production part 12 can be an air-conditioning remote control, also can be the control assembly (for example, generally all comprise a control panel on the cabinet air-conditioner, also can realize the control to air-conditioning through the button on the control panel) on the air-conditioning.It is emphasized that other air supply rate that the present invention possibly relate to, for example compressor, four-way valve, evaporator etc. all belong to very known parts in this area, do not give unnecessary details at this.

Control signal production part 12 can produce the control signal of whether opening the human induction shutdown function, and sends this signal to microprocessor 10, and microprocessor 10 is according to the opening and closing of this control signal control human induction shutdown function; For example; Open at needs under the situation of human induction shutdown function, microprocessor 10 control people feel probe 11 work, as a kind of embodiment; The people feels the principle of work of probe can be following: human body all has constant body temperature; Generally about 37 degree, so can send the infrared ray about specific wavelength 10UM, it is exactly to carry out work by the infrared ray about the 10UM that surveys the human body emission that the people feels probe 11.Gather on the infrared induction source after your optical filter of luxuriant and rich with fragrance mud of infrared ray about the 10UM of human body emission through probe tip strengthens, obtain one 20 meters and whether have the identification signal of human body and send to microprocessor 10 with interior.In conjunction with reference to shown in Fig. 2; Feel the people and can increase by one between probe 11 and the microprocessor 10 and amplify and filtering circuit 13; The people feel probe 11 signals that obtain through amplification and filtering circuit 13 can the filtering daylight lamp, undesired signal such as natural light, make identification signal more accurate.

Following emphasis is set forth in the process that realizes the human induction shutdown method of air conditioner according to the invention under the above-mentioned hardware frame.

In conjunction with referring to shown in Fig. 3; After starting the human induction shutdown function; Instep 30, the people feels probe 11 detection people and whether leaves testing environment (whether the someone exists in the testing environment in other words), if the people does not leave testing environment (being to have the people to exist in the testing environment); Then repeatingstep 30, continue to detect; Detect unmanned existence the in the testing environment if the people feels probe 11, then execution instep 31, get into timing program; Pick up counting (microprocessor 10 inside comprise timer circuit, and for example can set timing time is 5 minutes) by microprocessor 10, after timing begins; Instep 32, judge whether to have reached setting-up time,, judged whether that so again the people enters into testing environment again if do not reach setting-up time; If nobody gets into testing environment, repeatingstep 32 so; If someone enters into testing environment, turn back tostep 30 so.If the judged result in thestep 32 is for arriving setting-up time (that is, nobody enters into testing environment in setting-up time), then execution instep 33, enter into shutdown programm, and air conditioner is prepared shutdown.Like this; Throughstep 32,34, can detect before arriving setting-up time whether the someone enters into testing environment, so the human induction shutdown method of air conditioner of the present invention can avoid that the user is of short duration to leave the bedroom time air conditioner close automatically; Treat that the user returns after the bedroom; Air-conditioning is opened once more, has avoided the frequent switching on and shutting down of air conditioner, also after user's long-time (present embodiment is more than five minutes) withdraws from a room, can shut down automatically simultaneously.

The concrete steps of shutdown programm please combine referring to shown in Fig. 4.Carry out in the process of shutdown programm at air conditioner, consider the characteristics and the working environment of air conditioner self, also should carry out following steps:

After starting shutdown programm, judge instep 40 at first whether air conditioner defrosts, if defrost; Then execution in step 41, continue defrosting and finish until defrosting, finish if air conditioner does not defrost or defrosts; Then execution instep 42; Judge that whether electrical heating moves, if moving electrical heating, then closes electrical heating throughstep 43; If the electrical heating off-duty is perhaps closed, then execution instep 44, close the compressor in the air conditioner; Execution instep 45 then, and whether the temperature of judging evaporator, drops to below 45 degrees centigrade up to evaporator if the temperature of evaporator is waited for its cooling so more than 45 degrees centigrade less than design temperature (for example 45 degrees centigrade); After the temperature of evaporator drops to below the design temperature, execution instep 46, close chamber's inner blower and air door; Judge instep 47 then whether compressor has closed (also can be other Preset Time) more than two minutes, if less than two minutes, wait for so compressor close more than two minutes after execution instep 48, close four-way valve and people and feel and pop one's head in 11.Through said process, air conditioner is reasonably closed according to the self-operating situation, avoided closing suddenly the fault and the loss that possibly bring.

The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within the claim protection domain of the present invention.

Claims (5)

1. the human induction shutdown method of an air conditioner; Said air conditioner comprises microprocessor, receive the microprocessor control signal and to the people that microprocessor sends data-signal feel probe, to the control signal production part that microprocessor transmits control signal, the human induction shutdown method of said air conditioner may further comprise the steps:

Step a feels the probe detection people through the people and whether leaves testing environment;

Step b after the people feels probe and detects the people and leave testing environment, is picked up counting by microprocessor;

Step c, whether the someone enters into testing environment to arrive the preceding detection of setting-up time;

Steps d enters into testing environment then gets into shutdown programm if arrive behind the setting-up time nobody;

Wherein steps d may further comprise the steps:

Steps d 1 judges whether air conditioner defrosts, if defrost, then continues defrosting and finishes until defrosting;

Steps d 2 finishes if air conditioner does not defrost or defrosts, and judges then whether electrical heating moves, if moving electrical heating, then closes electrical heating;

Steps d 3 if the electrical heating off-duty is perhaps closed, is then closed the compressor in the air conditioner;

Whether steps d 4, the temperature of judging evaporator less than design temperature, after the temperature of evaporator drops to below the design temperature, and close chamber's inner blower and air door;

Steps d 5 judges that whether the shut-in time of compressor surpasses Preset Time, after office to be compressed surpasses Preset Time at the time of closing, closes four-way valve and the people feels probe.

2. the human induction shutdown method of air conditioner according to claim 1 is characterized in that, the timing time of setting among the said step b is 5 minutes.

3. the human induction shutdown method of air conditioner according to claim 1 is characterized in that, the design temperature in the said steps d 4 is 45 degree Celsius.

4. the human induction shutdown method of air conditioner according to claim 1 is characterized in that, the Preset Time in the said steps d 5 is 2 minutes.

5. the human induction shutdown method of air conditioner according to claim 1 is characterized in that, said people feels and is provided with one between probe and the microprocessor and amplifies and filtering circuit.

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