CN115218342A - Indoor fan control method and device of air conditioner, storage medium and air conditioner - Google Patents
Indoor fan control method and device of air conditioner, storage medium and air conditioner Download PDFInfo
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- CN115218342A CN115218342A CN202210789713.5A CN202210789713A CN115218342A CN 115218342 A CN115218342 A CN 115218342A CN 202210789713 A CN202210789713 A CN 202210789713A CN 115218342 A CN115218342 A CN 115218342A
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- 230000002159 abnormal effect Effects 0.000 claims abstract description 33
- 238000001514 detection method Methods 0.000 claims description 107
- 238000001931 thermography Methods 0.000 claims description 24
- 238000004590 computer program Methods 0.000 claims description 7
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- 238000005859 coupling reaction Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003331 infrared imaging Methods 0.000 description 2
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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
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/20—Feedback from users
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention provides an indoor fan control method and device of an air conditioner, a storage medium and the air conditioner, wherein the method comprises the following steps: when the indoor fan runs, detecting whether foreign matters and/or hands exist at an air outlet of the air conditioner and/or detecting whether the rotating speed stability of the indoor fan is abnormal; and if detecting that foreign matters and/or hands exist at the air outlet and/or detecting that the rotating speed stability of the indoor fan is abnormal, controlling the indoor fan to stop. The scheme provided by the invention can solve the problems that the air outlet of the indoor fan of the air conditioner does not recognize hands or foreign matters, and the emergency stop of the fan is difficult to adopt.
Description
Technical Field
The invention relates to the field of control, in particular to a method and a device for controlling an indoor fan of an air conditioner, a storage medium and the air conditioner.
Background
At present, the air conditioner trade, but to the export wind direct visual inspection and contact indoor fan commentaries on classics leaf, there is the hidden danger problem that the hand was hurt in the direct touch of user (for example children user), has only increased the safeguard measure of protecting wire net, nevertheless because of the non-compulsory installation of protecting wire net, so hidden danger is not accomplished and is solved, needs increase more effective measure, prevents that the user is injured, need follow control principle and go up control, avoids the children mistake in the use to touch and leads to injured problem.
Disclosure of Invention
The invention mainly aims to overcome the defects of the related technologies and provide an indoor fan control method and device of an air conditioner, a storage medium and the air conditioner so as to solve the problem that an air outlet of an air conditioner cannot recognize hands or foreign matters and is difficult to stop the indoor fan in an emergency manner in the related technologies.
The invention provides an indoor fan control method of an air conditioner, which comprises the following steps: when the indoor fan runs, detecting whether foreign matters and/or hands exist at an air outlet of the air conditioner and/or detecting whether the rotating speed stability of the indoor fan is abnormal; and if detecting that foreign matters and/or hands exist at the air outlet and/or detecting that the rotating speed stability of the indoor fan is abnormal, controlling the indoor fan to stop.
Optionally, the method further comprises: when the air conditioner is started, detecting whether foreign matters and/or hands exist at an air outlet of the air conditioner; if detecting that foreign matters and/or hands exist at the air outlet, forbidding the indoor fan to start; otherwise, controlling the indoor fan to operate according to a set state.
Optionally, a detection device is arranged on the inner side of the air outlet of the air conditioner, and the detection device is used for detecting whether foreign matters and/or hands exist at the air outlet.
Optionally, the detection device is an infrared thermographic detection device.
Optionally, detecting whether the rotation speed stability of the indoor fan is abnormal includes: judging whether the rotating speed value of the indoor fan meets the condition that the continuous X periods are larger than the sum of the target rotating speed value and a preset allowable deviation value or smaller than the difference between the target rotating speed value and the preset allowable deviation value; and if the rotating speed value of the indoor fan is judged to meet the condition that the continuous X periods are larger than the sum of the target rotating speed value and the preset allowable deviation value or smaller than the difference between the target rotating speed value and the preset allowable deviation value, judging that the rotating speed stability of the indoor fan is abnormal.
Optionally, the method further comprises: and reminding after controlling the indoor fan to stop or when forbidding the indoor fan to start.
In another aspect, the present invention provides an indoor fan control apparatus for an air conditioner, including: the detection unit is used for detecting whether foreign matters and/or hands exist at the air outlet of the air conditioner or not and/or detecting whether the rotating speed stability of the indoor fan is abnormal or not when the indoor fan runs; and the control unit is used for controlling the indoor fan to stop if the detection unit detects that foreign matters and/or hands exist at the air outlet and/or detects that the rotating speed stability of the indoor fan is abnormal.
Optionally, the detection unit is further configured to: when the air conditioner is started, detecting whether foreign matters and/or hands exist at an air outlet of the air conditioner; the control unit is further used for forbidding the indoor fan to start if the detection unit detects that foreign matters and/or hands exist at the air outlet; otherwise, controlling the indoor fan to operate according to a set state.
Optionally, a detection device is arranged on the inner side of the air outlet of the air conditioner, and the detection unit detects whether foreign matters and/or hands exist at the air outlet through the detection device.
Optionally, the detection device is an infrared thermography detection device.
Optionally, the detection unit is configured to determine whether the rotation speed value of the indoor fan is greater than a sum of the target rotation speed value and a preset allowable deviation value or less than a difference between the target rotation speed value and the preset allowable deviation value for X consecutive cycles; and if the rotating speed value of the indoor fan is judged to meet the condition that X continuous periods are larger than the sum of the target rotating speed value and a preset allowable deviation value or smaller than the difference between the target rotating speed value and the preset allowable deviation value, judging that the rotating speed stability of the indoor fan is abnormal.
Optionally, the method further comprises: and the reminding unit is used for reminding after the control unit controls the indoor fan to stop or when the indoor fan is forbidden to start.
A further aspect of the invention provides a storage medium having stored thereon a computer program which, when executed by a processor, carries out the steps of any of the methods described above.
Yet another aspect of the present invention provides an air conditioner comprising a processor, a memory, and a computer program stored in the memory and operable on the processor, wherein the processor executes the program to perform the steps of any of the methods described above.
In another aspect, the invention provides an air conditioner, comprising any one of the indoor fan control devices.
According to the technical scheme of the invention, the hand and the foreign matters are detected, and/or the rotating speed stability of the indoor fan is detected, so that the indoor fan is controlled to stop when the hand and/or the foreign matters are detected, and/or the rotating speed stability of the indoor fan is detected to be abnormal, and the problem that the air outlet of the indoor fan of the air conditioner cannot identify the hand or the foreign matters and the indoor fan is difficult to stop urgently at present is solved.
According to the technical scheme of the invention, the infrared thermal imaging detection device is arranged on the inner side of the air outlet, and whether foreign matters or human hand targets exist at the air outlet of the air conditioner is judged after infrared imaging. The signal of a person or a foreign matter is detected through infrared rays, and/or the indoor fan starting and stopping control logic is automatically triggered through the stability of the rotating speed.
According to the technical scheme, the problem that potential safety hazards are increased due to the fact that the finger protection net is damaged and repaired after being used for a long time can be solved, and meanwhile the safety coefficient of the air conditioner in the using process is greatly improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not limit the invention. In the drawings:
fig. 1 is a method schematic diagram of an embodiment of an indoor fan control method of an air conditioner according to the present invention;
FIG. 2 illustrates a flow diagram of infrared detection feedback signal determination according to an embodiment of the present invention;
FIG. 3 illustrates a flow chart of indoor fan stability determination;
fig. 4 is a method diagram illustrating another embodiment of an indoor fan control method of an air conditioner according to the present invention;
FIG. 5 is a schematic method diagram illustrating an embodiment of an indoor fan control method for an air conditioner according to the present invention;
fig. 6 is a block diagram illustrating an embodiment of an indoor fan control apparatus for an air conditioner according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a method schematic diagram of an embodiment of an indoor fan control method of an air conditioner according to the present invention.
As shown in fig. 1, according to an embodiment of the present invention, the indoor fan control method of an air conditioner includes at least steps S110 and S120.
And S110, detecting whether foreign matters and/or hands exist at the air outlet of the air conditioner and/or detecting whether the rotating speed stability of the indoor fan is abnormal when the indoor fan runs.
Specifically, after the air conditioner is powered on and operated, the indoor fan of the air conditioner is controlled to operate according to a set state, whether foreign matters and/or hands exist at an air outlet (an air outlet of an indoor unit) of the air conditioner is detected, and/or whether the rotating speed stability of the indoor fan is abnormal is detected.
In a specific embodiment, a detection device is arranged on the inner side of the air outlet of the air conditioner, and the detection device is used for detecting whether foreign matters and/or hands exist at the air outlet. Specifically, the detection device is arranged on the inner side of an air outlet duct of the air conditioner. Alternatively, the detection device may be an infrared detection device. Preferably, the detection device is an infrared thermal imaging detection device, which not only can detect whether a shielding object exists at the air outlet, but also can detect whether the shielding object is a foreign object or a human hand.
In one specific embodiment, the feedback signal H for the detection device to detect whether there is a foreign object and/or a human hand at the air outlet of the air conditioner is defined as: 01 is a human hand, 10 is a foreign body, 11 is a human hand and a foreign body, and 00 is a normal state, i.e., no human hand and foreign body.
Fig. 2 shows a flow chart of infrared detection feedback signal determination according to an embodiment of the present invention. As shown in fig. 2, taking the infrared thermal imaging detection device as an example, after the infrared thermal imaging detection device is started, the infrared thermal imaging detection device communicates with the air conditioner main control and sends an infrared detection feedback signal, and when the infrared detection feedback signal H is 01, it is determined that a hand of a person stays in the air outlet area; when the infrared detection feedback signal H is 10, judging that foreign matters block the air outlet area; when the infrared detection feedback signal H is 11, judging that the air outlet area is blocked by hands and foreign matters; and when the infrared detection signal H is 00, judging that no hand or foreign matter is blocked in the air outlet area.
In one embodiment, the detecting whether the rotational speed stability of the indoor fan is abnormal may specifically include: judging whether the rotating speed value of the indoor fan meets the condition that the continuous X periods are larger than the sum of the target rotating speed value and a preset allowable deviation value or smaller than the difference between the target rotating speed value and the preset allowable deviation value; and if the rotating speed value of the indoor fan is judged to meet the condition that the continuous X periods are larger than the sum of the target rotating speed value and the preset allowable deviation value or smaller than the difference between the target rotating speed value and the preset allowable deviation value, judging that the rotating speed stability of the indoor fan is abnormal. X is more than or equal to 2.
Fig. 3 shows a flow chart of the indoor fan stability determination. As shown in fig. 3, the indoor fan operates in a set state, the real-time rotating speed value R of the indoor fan is monitored, whether the rotating speed value R is greater than R1+ Y or less than R1-Y is judged, wherein R1 is a target rotating speed value, and if the rotating speed values R detected in X consecutive periods are all greater than R1+ Y or less than R1-Y, it is judged that the rotating speed fluctuates abnormally and the rotating speed stability of the indoor fan is abnormal.
And S120, if detecting that foreign matters and/or hands exist at the air outlet and/or detecting that the rotating speed stability of the indoor fan is abnormal, controlling the indoor fan to stop.
In a specific embodiment, if a foreign matter or a hand is detected at an air outlet of the air conditioner and the rotational speed stability of the indoor fan is detected to be abnormal, the indoor fan is controlled to stop. Specifically, controlling the indoor fan to stop may send a reverse signal to the indoor fan, thereby enabling the indoor fan to stop immediately. Optionally, a warning is given after the indoor fan is controlled to stop, for example, an alarm is given (for example, a fault flag is set or a fault code is displayed), or a buzzer is controlled to sound.
For example, when the indoor fan operates according to a set state, monitoring a real-time rotating speed value R of the indoor fan, taking an infrared thermal imaging detection device as an example, when an infrared detection feedback signal H is received to be 01 (namely, a human hand) or 10 (namely, a foreign object) and the rotating speed value R is detected to be greater than R1+ Y or less than R1-Y in X continuous periods, judging that the rotating speed of the indoor fan is abnormally fluctuated, immediately carrying out emergency shutdown processing on the indoor fan, sending a reverse signal to enable the indoor fan to be immediately stopped, and carrying out shutdown processing according to protection; when the rotating speed of the indoor fan is detected to be 0, the buzzer buzzes.
In another specific embodiment, if it is detected that foreign matter is present at the air outlet of the air conditioner and a hand is present, the indoor fan is controlled to stop.
For example, when the indoor fan operates according to a set state, a real-time rotating speed value R of the indoor fan is monitored, taking an infrared thermal imaging detection device as an example, when an infrared detection feedback signal H is received and is 11 (namely, hands and foreign matters exist), a reverse signal is immediately sent to the indoor fan, so that the indoor fan can be rapidly stopped, when the rotating speed of the indoor fan is detected to be 0, a control signal is not sent, a buzzer buzzes, and the load is stopped according to protection.
Further, when the reminding is performed after the indoor fan is controlled to stop, if the air conditioner is started again after the air conditioner stops, the reminding is stopped. For example, when a foreign matter alarm is triggered (for example, a fault flag is set or a fault code is displayed), when the buzzer buzzes, if the buzzer is powered on after being powered off or powered off again, the alarm and the buzzes are cancelled, the value of the infrared signal H is judged again, when the infrared detection feedback signal H is not 00, the foreign matter alarm is carried out again, the buzzer buzzes, and when the infrared detection feedback signal H is 00, the indoor fan is started to operate normally according to a set state.
Fig. 4 is a method diagram of another embodiment of an indoor fan method of an air conditioner according to the present invention.
As shown in fig. 4, based on the above embodiments, according to another embodiment of the present invention, the indoor fan method of the air conditioner includes at least step S110 and step S120.
And S102, detecting whether foreign matters and/or hands exist at the air outlet of the air conditioner or not when the air conditioner is started.
Step S104, if detecting that foreign matters and/or hands exist at the air outlet, forbidding the indoor fan to start; otherwise, controlling the indoor fan to operate according to a set state.
The method for detecting whether foreign objects and/or hands exist at the air outlet of the air conditioner is the same as the method for detecting whether foreign objects and/or hands exist at the air outlet in the step (S120) of the previous embodiment, and details are omitted here. Optionally, when the indoor fan is prohibited from being started, a reminder, such as an alarm control buzzer, is also made.
Taking an infrared thermal imaging detection device as an example, when the air conditioner is started, after the infrared thermal imaging detection device is started, the infrared thermal imaging detection device is communicated with the air conditioner main control and sends an infrared detection feedback signal, when the infrared detection feedback signal H is 01, it is judged that a hand stays in an air outlet area, an indoor fan is forbidden to be started, a foreign matter alarm function is synchronously triggered, and a buzzer buzzes; when the infrared detection feedback signal H is 10, judging that foreign matters block the air outlet area, forbidding the indoor fan to start, synchronously triggering the foreign matter alarm function, and sounding the buzzer; when the infrared detection signal H is 11, judging that a hand and a foreign body block an air outlet area, forbidding an indoor fan to start, synchronously triggering a foreign body alarm function, and sounding a buzzer; when the infrared detection signal H is 00, the air outlet area is judged to be free of hand or foreign matter blockage, and the indoor fan operates according to a set state.
In order to clearly illustrate the technical solution of the present invention, an execution flow of the method for controlling an indoor fan of an air conditioner according to the present invention is described below with an embodiment.
Fig. 5 is a schematic method diagram of an embodiment of an indoor fan control method of an air conditioner according to the present invention. As shown in fig. 5, the method may be implemented on the air conditioner main control board by a program.
When the air conditioner is powered on and operated, the infrared thermal imaging detection device is synchronously started, feeds back a result of detecting an air outlet of the air conditioner to the main control, and judges whether an infrared detection signal H is normal, wherein if the infrared detection signal H is judged to be 01 or 10, namely, a hand and a foreign matter block an air outlet area, the indoor fan is forbidden to be started, the foreign matter alarm function is synchronously triggered, and the buzzer buzzes; when the infrared detection signal H is 00, namely the infrared detection signal H is normal, it is judged that no hand or foreign object is blocked in the air outlet area, and the indoor fan operates according to a set state.
When the indoor fan operates according to a set state, monitoring a real-time rotating speed value R of the indoor fan, judging that the rotating speed of the indoor fan is abnormally fluctuated when an infrared detection signal H received is 01 (namely, a hand is present) or 10 (namely, foreign matters are present) and the rotating speed value R is continuously greater than R1+ Y or less than R1-Y for X periods, immediately carrying out emergency shutdown processing on the indoor fan by a main controller, sending a reverse signal to enable the indoor fan to be immediately stopped, and carrying out shutdown processing on a load according to protection; when the rotating speed of the indoor fan is detected to be 0, the buzzer buzzes; when the received infrared detection signal H is 11 (namely, hands and foreign matters exist), the master control immediately sends a reverse signal to the indoor fan, so that the indoor fan can be rapidly stopped, when the rotating speed of the indoor fan is detected to be 0, a control signal is not sent any more, the buzzer buzzes, and the load is stopped according to protection.
When a foreign matter alarm is triggered, when the buzzer buzzes, if the mobile phone is powered off and then started up or powered off and then powered on, the alarm and buzzes are cancelled, the value of the infrared signal H is judged again, if the H is not 00, the foreign matter alarm is carried out again, the buzzer buzzes, and if the H is 00, the indoor fan is started normally to operate according to a set state.
Fig. 6 is a block diagram illustrating an embodiment of an indoor fan control apparatus for an air conditioner according to the present invention. As shown in fig. 6, the indoor fan control apparatus 100 includes a detection unit 110 and a control unit 120.
The detection unit 110 is configured to detect whether foreign objects and/or human hands exist at an air outlet of the air conditioner and/or detect whether the rotational speed stability of the indoor fan is abnormal when the indoor fan operates.
Specifically, after the air conditioner is powered on and operated, the control unit 120 controls an indoor fan (indoor fan) of the air conditioner to operate according to a set state, and the detection unit 110 detects whether foreign objects and/or hands exist at an air outlet of the air conditioner and/or detects whether the rotational speed stability of the indoor fan is abnormal.
In a specific embodiment, a detection device is disposed inside the air outlet of the air conditioner, and the detection unit 110 detects whether there is a foreign object and/or a human hand at the air outlet through the detection device. Specifically, the detection device is arranged on the inner side of an air outlet duct of the air conditioner. Alternatively, the detection device may be an infrared detection device. Preferably, the detection device is an infrared thermal imaging detection device, which not only can detect whether a shielding object exists at the air outlet, but also can detect whether the shielding object is a foreign object or a human hand.
In one specific embodiment, the feedback signal H for the detection device to detect whether there is a foreign object and/or a human hand at the air outlet of the air conditioner is defined as: 01 is a human hand, 10 is a foreign body, 11 is a human hand and a foreign body, and 00 is a normal state, i.e., no human hand and foreign body.
Fig. 2 shows a flow chart of infrared signal detection according to an embodiment of the present invention. As shown in fig. 2, taking the infrared thermal imaging detection device as an example, after the infrared thermal imaging detection device is started, the infrared thermal imaging detection device communicates with the air conditioner main control and sends an infrared detection feedback signal, and when the infrared detection feedback signal H is 01, it is determined that a hand of a person stays in the air outlet area; when the infrared detection feedback signal H is 10, judging that foreign matters block the air outlet area; when the infrared detection feedback signal H is 11, judging that the air outlet area is blocked by hands and foreign matters; and when the infrared detection signal H is 00, judging that no hand or foreign matter is blocked in the air outlet area.
In one embodiment, the detecting unit 110 may specifically detect whether the rotational speed stability of the indoor fan is abnormal, including: judging whether the rotating speed value of the indoor fan meets the condition that the continuous X periods are larger than the sum of the target rotating speed value and a preset allowable deviation value or smaller than the difference between the target rotating speed value and the preset allowable deviation value; and if the rotating speed value of the indoor fan is judged to meet the condition that the continuous X periods are larger than the sum of the target rotating speed value and the preset allowable deviation value or smaller than the difference between the target rotating speed value and the preset allowable deviation value, judging that the rotating speed stability of the indoor fan is abnormal. X is more than or equal to 2
Fig. 3 shows a flow chart of the indoor fan stability determination. As shown in fig. 3, the indoor fan operates in a set state, the real-time rotating speed value R of the indoor fan is monitored, whether the rotating speed value R is greater than R1+ Y or less than R1-Y is judged, wherein R1 is a target rotating speed value, and if the rotating speed values R detected in X consecutive periods are all greater than R1+ Y or less than R1-Y, it is judged that the rotating speed fluctuates abnormally and the rotating speed stability of the indoor fan is abnormal.
A control unit 120, configured to control the indoor fan to stop if the detection unit 110 detects that there is a foreign object and/or a human hand at the air outlet, and/or detects that the rotational speed stability of the indoor fan is abnormal.
In one embodiment, if the detection unit 110 detects that there is a foreign object or a hand at the air outlet of the air conditioner and detects that the rotational speed stability of the indoor fan is abnormal, the control unit 120 controls the indoor fan to stop. Specifically, the control unit 120 controls the indoor fan to stop, and may send a reverse signal to the indoor fan, so that the indoor fan can be immediately stopped. Optionally, the indoor fan control device further includes a reminding unit, configured to remind a user, such as an alarm (for example, setting a fault flag or displaying a fault code), or controlling a buzzer to sound, after the control unit 120 controls the indoor fan to stop.
For example, when the indoor fan operates according to a set state, monitoring a real-time rotating speed value R of the indoor fan, taking an infrared thermal imaging detection device as an example, when an infrared detection feedback signal H is received to be 01 (namely, a human hand) or 10 (namely, a foreign object) and the rotating speed value R is detected to be greater than R1+ Y or less than R1-Y in X continuous periods, judging that the rotating speed of the indoor fan is abnormally fluctuated, immediately carrying out emergency shutdown processing on the indoor fan, sending a reverse signal to enable the indoor fan to be immediately stopped, and carrying out shutdown processing according to protection; when the rotating speed of the indoor fan is detected to be 0, the control signal is not sent any more, and the buzzer buzzes.
In another embodiment, if the detection unit 110 detects that there is a foreign object and a hand at the air outlet of the air conditioner, the control unit 120 controls the indoor fan to stop.
For example, when the indoor fan operates according to a set state, a real-time rotating speed value R of the indoor fan is monitored, for example, by using an infrared thermal imaging detection device, when an infrared detection feedback signal H is received and is 11 (namely, hands and foreign matters exist), a reverse signal is immediately sent to the indoor fan, so that the indoor fan can be rapidly stopped, when the rotating speed of the indoor fan is detected to be 0, a control signal is not sent any more, a buzzer buzzes, and the load is stopped according to protection.
Optionally, the indoor fan control device 100 further includes a reminding unit (not shown) configured to stop reminding when the control unit 120 controls the indoor fan to be reminded after being shut down and if the air conditioner is restarted after being shut down. For example, when a foreign object alarm is triggered and the buzzer buzzes, if the mobile terminal is turned off and then turned on or powered off and then powered on, the alarm and buzzes are cancelled, the value of the infrared signal H is judged again, if the infrared detection feedback signal H is not 00, the foreign object alarm is carried out again, the buzzer buzzes, and if the infrared detection feedback signal H is 00, the indoor fan is normally started to operate according to a set state.
Optionally, according to another embodiment of the present invention, the detecting unit 110 is further configured to: when the air conditioner is started, detecting whether foreign matters and/or hands exist at an air outlet of the air conditioner; the control unit 120 is further configured to prohibit the indoor fan from being started if the detection unit 110 detects that foreign matter and/or a human hand is present at the air outlet; otherwise, controlling the indoor fan to operate according to a set state.
The mode of detecting whether foreign matters and/or hands exist at the air outlet of the air conditioner is the same as the mode of detecting whether foreign matters and/or hands exist at the air outlet in the implementation, and the details are omitted. Optionally, the apparatus 100 further includes a reminding unit (not shown) for reminding, for example, controlling a buzzer to sound when the control unit prohibits the indoor fan from being started.
Taking an infrared thermal imaging detection device as an example, when the air conditioner is started, after the infrared thermal imaging detection device is started, the infrared thermal imaging detection device is communicated with the air conditioner main control and sends an infrared detection feedback signal, when the infrared detection feedback signal H is 01, it is judged that a hand stays in an air outlet area, an indoor fan is forbidden to be started, a foreign matter alarm function is synchronously triggered, and a buzzer buzzes; when the infrared detection feedback signal H is 10, judging that foreign matters block the air outlet area, forbidding the indoor fan to start, synchronously triggering the foreign matter alarm function, and sounding the buzzer; when the infrared detection signal H is 11, judging that a hand and a foreign body block an air outlet area, forbidding an indoor fan to start, synchronously triggering a foreign body alarm function, and sounding a buzzer; when the infrared detection signal H is 00, it is judged that no hand or foreign object is blocked in the air outlet area, and the indoor fan operates according to a set state.
The invention also provides a storage medium corresponding to the indoor fan control method, wherein a computer program is stored on the storage medium, and the computer program is used for realizing the steps of any one of the methods when being executed by a processor.
The invention also provides an air conditioner corresponding to the indoor fan control method, which comprises a processor, a memory and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the program to realize the steps of any one of the methods.
The invention also provides an air conditioner corresponding to the indoor fan control device, which comprises any one of the indoor fan control devices.
Therefore, according to the scheme provided by the invention, the hand and the foreign matters are detected, and/or the rotating speed stability of the indoor fan is detected, so that the indoor fan is controlled to stop when the hand and/or the foreign matters are detected, and/or the rotating speed stability of the indoor fan is detected to be abnormal, and the problem that the air outlet of the indoor fan of the air conditioner cannot identify the hand or the foreign matters, and the indoor fan is difficult to stop urgently is solved.
According to the technical scheme of the invention, the infrared thermal imaging detection device is arranged on the inner side of the air outlet, and whether foreign matters or human hand targets exist at the air outlet of the air conditioner is judged after infrared imaging. The signal of a person or a foreign matter is detected through infrared rays, and/or the indoor fan starting and stopping control logic is automatically triggered through the stability of the rotating speed.
According to the technical scheme, the problem that potential safety hazards are increased due to the fact that the finger protection net is damaged and repaired after being used for a long time can be solved, and meanwhile the safety coefficient of the air conditioner in the using process is greatly improved.
The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Other examples and implementations are within the scope and spirit of the invention and the following claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwired, or a combination of any of these. In addition, each functional unit may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
In the embodiments provided in the present application, it should be understood that the disclosed technical content can be implemented in other manners. The above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or may not be executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and the parts serving as the control device may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (14)
1. An indoor fan control method of an air conditioner is characterized by comprising the following steps:
when the indoor fan operates, detecting whether foreign matters and/or hands exist at an air outlet of the air conditioner and/or detecting whether the rotating speed stability of the indoor fan is abnormal;
and if detecting that foreign matters and/or hands exist at the air outlet and/or detecting that the rotating speed stability of the indoor fan is abnormal, controlling the indoor fan to stop.
2. The indoor fan control method according to claim 1, further comprising:
when the air conditioner is started, detecting whether foreign matters and/or hands exist at an air outlet of the air conditioner;
if detecting that foreign matters and/or hands exist at the air outlet, forbidding the indoor fan to start; otherwise, controlling the indoor fan to operate according to a set state.
3. The indoor fan control method according to claim 1 or 2, wherein a detection device is provided inside an air outlet of the air conditioner, and the detection device detects whether there is a foreign object and/or a human hand at the air outlet.
4. The indoor fan control method according to claim 3, wherein the detection device is an infrared thermal imaging detection device.
5. The indoor fan control method according to any one of claims 1 to 4, wherein detecting whether the stability of the indoor fan is abnormal includes:
judging whether the rotating speed value of the indoor fan meets the condition that the continuous X periods are larger than the sum of the target rotating speed value and a preset allowable deviation value or smaller than the difference between the target rotating speed value and the preset allowable deviation value;
and if the rotating speed value of the indoor fan is judged to meet the condition that the continuous X periods are larger than the sum of the target rotating speed value and the preset allowable deviation value or smaller than the difference between the target rotating speed value and the preset allowable deviation value, judging that the rotating speed stability of the indoor fan is abnormal.
6. The indoor fan control method according to any one of claims 1 to 5, further comprising:
and reminding after controlling the indoor fan to stop or when prohibiting the indoor fan from starting.
7. An indoor fan control device of an air conditioner, comprising:
the detection unit is used for detecting whether foreign matters and/or hands exist at the air outlet of the air conditioner and/or detecting whether the rotating speed stability of the indoor fan is abnormal or not when the indoor fan operates;
and the control unit is used for controlling the indoor fan to stop if the detection unit detects that foreign matters and/or hands exist at the air outlet and/or detects that the rotating speed stability of the indoor fan is abnormal.
8. An indoor fan control apparatus according to claim 7,
the detection unit is further configured to: when the air conditioner is started, detecting whether foreign matters and/or hands exist at an air outlet of the air conditioner;
the control unit is also used for forbidding the indoor fan to start if the detection unit detects that foreign matters and/or hands exist at the air outlet; otherwise, controlling the indoor fan to operate according to a set state.
9. An indoor fan control device according to claim 7 or 8, wherein a detection device is provided inside the air outlet of the air conditioner, and the detection unit detects whether there is a foreign object and/or a human hand at the air outlet through the detection device.
10. An indoor fan control apparatus according to claim 9, wherein the detection means is an infrared thermography detection means.
11. The indoor fan control device according to any one of claims 7 to 10, wherein the detecting unit detects whether or not the rotational speed stability of the indoor fan is abnormal, includes:
judging whether the rotating speed value of the indoor fan meets the condition that the continuous X periods are larger than the sum of the target rotating speed value and a preset allowable deviation value or smaller than the difference between the target rotating speed value and the preset allowable deviation value;
and if the rotating speed value of the indoor fan is judged to meet the condition that X continuous periods are larger than the sum of the target rotating speed value and a preset allowable deviation value or smaller than the difference between the target rotating speed value and the preset allowable deviation value, judging that the rotating speed stability of the indoor fan is abnormal.
12. An indoor fan control apparatus according to any one of claims 7 to 11, further comprising:
and the reminding unit is used for reminding after the control unit controls the indoor fan to stop or when the indoor fan is forbidden to start.
13. A storage medium, having stored thereon a computer program which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
14. An air conditioner comprising a processor, a memory and a computer program stored on the memory and operable on the processor, the processor when executing the program implementing the steps of the method of any one of claims 1 to 6, including the indoor fan control apparatus of any one of claims 7 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210789713.5A CN115218342A (en) | 2022-07-06 | 2022-07-06 | Indoor fan control method and device of air conditioner, storage medium and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210789713.5A CN115218342A (en) | 2022-07-06 | 2022-07-06 | Indoor fan control method and device of air conditioner, storage medium and air conditioner |
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| CN115218342A true CN115218342A (en) | 2022-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210789713.5A Withdrawn CN115218342A (en) | 2022-07-06 | 2022-07-06 | Indoor fan control method and device of air conditioner, storage medium and air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115751697A (en) * | 2022-11-18 | 2023-03-07 | 海信（广东）空调有限公司 | An air conditioner and noise reduction method thereof |
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