CN111664557A - Air conditioner PMV control method and system fusing biological radar detection technology - Google Patents
Air conditioner PMV control method and system fusing biological radar detection technology Download PDFInfo
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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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
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/04—Systems determining presence of a target
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/885—Radar or analogous systems specially adapted for specific applications for ground probing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
- G01S7/415—Identification of targets based on measurements of movement associated with the target
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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
- F24F2120/10—Occupancy
Abstract
The invention provides an air conditioner PMV control method and system fusing a biological radar detection technology, which are characterized in that at least one detection area needing to be detected is determined by setting boundary parameters, target personnel is positioned by setting target classification parameters, a radar integrated chip detects the target personnel in each detection area, a data processing chip processes the analysis result of the detection, and when target personnel, the number of the target personnel and the target characteristic information of each target personnel exist in a first detection area, PWV control is carried out on the air conditioner by calculating a PWV value and judging whether the PWV value meets a preset thermal comfort condition or not. This scheme adopts biological radar detection technique, can not cause the privacy for the user like camera collection image picture to reveal, and the electromagnetic wave not only has the penetrability, still does not receive the influence of factors such as light, detection angle, and the rate of accuracy is higher when carrying out PMV control to the air conditioner.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a PMV control method and system of an air conditioner integrating a biological radar detection technology.
Background
With the improvement of living standard, the air conditioner is a necessary product for daily life of people. With the development of intelligent technology, the air conditioner can control parameters such as indoor environment temperature, wind speed and wind direction by predicting a Predicted Mean Volume (PMV), so that the requirement of human body on thermal comfort in indoor space is met. However, in a real dynamic environment, because the thermal comfort of a human body has a dynamic characteristic, the PMV model in a conventional static environment cannot be directly applied to the dynamic real environment.
In order to solve the problem, the invention patent with application number 201711124386.7 discloses a PMV control method for the thermal comfort of a centralized air conditioner with fusion of image information, which utilizes a computer vision technology to analyze and process people in an indoor environment, obtains the load change, the fresh air volume demand change and the clothing wearing condition of the people caused by the change of the number of the people in a building space, establishes a PMV model under a dynamic environment based on the factors and is used for controlling the air conditioner.
However, the image acquisition technology involved in this scheme is not transparent and is susceptible to factors such as light, detection angle, and the like, and therefore, the PMV control method in the prior art has low accuracy.
Disclosure of Invention
The embodiment of the invention provides an air conditioner PMV control method and system fusing a biological radar detection technology, and the accuracy of the PMV control method is improved.
In a first aspect, an embodiment of the present invention provides an air conditioner PWV control system incorporating a biological radar detection technology, including: the radar system comprises a radar integrated chip, a data processing chip and a control panel;
the radar integrated chip is used for determining at least one detection area needing to be detected according to preset boundary parameters; radiating electromagnetic wave signals into the space, receiving biological radar echo signals, analyzing the biological radar echo signals according to the boundary parameters and preset target classification parameters, and sending an analysis result to the data processing chip;
the data processing chip is configured to, in determining the analysis result, include: target personnel, the number of the target personnel and target characteristic information of each target personnel exist in the first detection area; calculating a PWV value according to the number of the target persons and the target characteristic information of each target person; further judging whether the PWV value meets a preset thermal comfort condition, if not, generating an air conditioning mode adjusting instruction, and sending the air conditioning mode adjusting instruction to a control panel;
and the control panel is used for adjusting the current air-conditioning mode according to the air-conditioning mode adjusting instruction.
Preferably, the data processing chip is further configured to, in determining the analysis result, include: posture change information of target personnel and tracking the target personnel exists in the first detection area; then, whether a target person falls down is further judged according to the posture change information, if yes, a first alarm instruction is generated, and the first alarm instruction is sent to the control panel;
the control panel is further used for alarming according to the first alarm instruction.
Preferably, the data processing chip is further configured to, in determining the analysis result, include: if the target person exists in the second detection area, whether the target person existing in the second detection area is an early warning person is further judged, if yes, a second alarm instruction is generated, and the second alarm instruction is sent to the control panel;
the control panel is further used for alarming according to the second alarm instruction.
Preferably, the data processing chip is further configured to, in determining the analysis result, include: if a target person, the cardiopulmonary respiration frequency and the heartbeat frequency detected by the target person exist in the third detection area, judging whether the target person meeting the alarm condition exists according to the cardiopulmonary respiration frequency and the heartbeat frequency detected, if so, generating a third alarm instruction, and sending the third alarm instruction to the control panel;
the control panel is further used for alarming according to the third alarm instruction.
In a second aspect, an embodiment of the present invention further provides an air conditioner, including any one of the air conditioner PWV control systems that incorporate the biological radar detection technology.
Preferably, a radar integrated chip in the air conditioner PWV control system fusing the biological radar detection technology is arranged inside the air conditioner; when the air conditioner is in an installation completion state, the included angle between the radar integrated chip and the horizontal plane is 10-45 degrees, and/or the height from the ground is 2-2.5 meters.
In a third aspect, an embodiment of the present invention further provides a PWV control method for an air conditioner incorporating a biological radar detection technology, which is applied to the air conditioner and includes:
setting boundary parameters aiming at least one detection area needing to be detected; setting target classification parameters aiming at the detection target;
radiating electromagnetic wave signals into the space by using the radar integrated chip, receiving biological radar echo signals, analyzing the biological radar echo signals according to the boundary parameters and the target classification parameters, and sending an analysis result to a data processing chip;
determining the analysis result using the data processing chip comprises: target personnel, the number of the target personnel and target characteristic information of each target personnel exist in the first detection area; calculating a PWV value according to the number of the target persons and the target characteristic information of each target person; further judging whether the PWV value meets a preset thermal comfort condition, if not, generating an air conditioning mode adjusting instruction, and sending the air conditioning mode adjusting instruction to a control panel;
and adjusting the current air-conditioning mode by using the control panel according to the air-conditioning mode adjusting instruction.
Preferably, further comprising:
determining the analysis result using the data processing chip comprises: posture change information of target personnel and tracking the target personnel exists in the first detection area; then, whether a target person falls down is further judged according to the posture change information, if yes, a first alarm instruction is generated, and the first alarm instruction is sent to the control panel;
the control panel further gives an alarm according to the first alarm instruction.
Preferably, further comprising:
determining the analysis result using the data processing chip comprises: if the target person exists in the second detection area, whether the target person existing in the second detection area is an early warning person is further judged, if yes, a second alarm instruction is generated, and the second alarm instruction is sent to the control panel;
and the control panel further gives an alarm according to the second alarm instruction.
Preferably, further comprising:
determining the analysis result using the data processing chip comprises: if a target person, the cardiopulmonary respiration frequency and the heartbeat frequency detected by the target person exist in the third detection area, judging whether the target person meeting the alarm condition exists according to the cardiopulmonary respiration frequency and the heartbeat frequency detected, if so, generating a third alarm instruction, and sending the third alarm instruction to the control panel;
and the control panel further gives an alarm according to the third alarm instruction.
The embodiment of the invention provides an air conditioner PMV control method and system fusing a biological radar detection technology, wherein at least one detection area needing to be detected is determined by setting boundary parameters, target personnel is positioned by setting target classification parameters, a radar integrated chip detects the target personnel in each detection area, a data processing chip processes the analysis result of the detection, and when target personnel, the number of the target personnel and the target characteristic information of each target personnel exist in a first detection area, PWV control is carried out on the air conditioner by calculating a PWV value and judging whether the PWV value meets a preset thermal comfort condition or not. This scheme adopts biological radar detection technique, can not cause the privacy for the user like camera collection image picture to reveal, and the electromagnetic wave not only has the penetrability, still does not receive the influence of factors such as light, detection angle, and the rate of accuracy is higher when carrying out PMV control to the air conditioner.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a structural diagram of an air conditioner PMV control system incorporating a biological radar detection technology according to an embodiment of the present invention;
fig. 2 is a flowchart of an air conditioner PMV control method incorporating a biological radar detection technology according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides an air conditioner PWV control system incorporating a biological radar detection technology, including: a radar integrated chip 101, a data processing chip 102 and a control panel 103;
the radar integrated chip 101 is configured to determine at least one detection area to be detected according to a preset boundary parameter; radiating electromagnetic wave signals into the space, receiving biological radar echo signals, analyzing the biological radar echo signals according to the boundary parameters and preset target classification parameters, and sending an analysis result to the data processing chip 102;
the data processing chip 102 is configured to, in determining the analysis result, include: target personnel, the number of the target personnel and target characteristic information of each target personnel exist in the first detection area; calculating a PWV value according to the number of the target persons and the target characteristic information of each target person; further judging whether the PWV value meets a preset thermal comfort condition, if not, generating an air conditioning mode adjusting instruction, and sending the air conditioning mode adjusting instruction to the control panel 103;
and the control panel 103 is configured to adjust the current air-conditioning mode according to the air-conditioning mode adjustment instruction.
In this embodiment, non-contact millimeter wave bio-radar detection technique, be transmission and receipt through the electromagnetic wave, come discernment building space in personnel's quantity, the scheme, the trail tracking, and human respiratory frequency, information such as heartbeat frequency, current scheme carries out the collection of image picture through the camera when discerning personnel's information, and carry out the analysis to the image picture, not only can cause the privacy to reveal for the user, still can receive the influence of wall light detection angle, and the electromagnetic wave not only has the penetrability, still not received the light, the influence of factors such as detection angle, the rate of accuracy is higher when carrying out PMV control to the air conditioner.
Wherein, in order to guarantee to use the space that has air conditioning unit with biological radar detection technique, for example, places such as family, office, KTV need set up different detection zone to different application scenes, can divide detection zone through the mode that sets up boundary parameter to use the family as an example, can set up boundary parameter according to the demand, in order to determine at least one detection zone, wherein the detection zone that can set up is: by setting boundary parameters, the radar integrated chip can only analyze the positioned target personnel in each detection area and does not consider the target personnel positioned outside the detection area.
Further, the setting requirement may be: for the detection area 'living room', whether target persons exist, the number of the existing target persons, target characteristic information of each target person and the like can be detected, and then the detection result is followed to carry out air-conditioning PWV control, wherein the target characteristic information can comprise information of the target persons such as heart-lung breathing frequency, heart-beat frequency, position, track tracking, posture change and the like. And whether a target person intrudes can be detected aiming at a detection area, if so, whether the target person intrudes is further judged to be child, and the risk is high when the child enters the balcony area, so that early warning can be performed aiming at the situation. The detection method can also detect whether a target person is in a deep sleep state or not and judge whether a health condition exists in the deep sleep state or not aiming at the detection area 'bedroom'. The system can also be used for detecting whether target personnel fall down in the whole family space of the area.
Furthermore, the detection target can be positioned by setting a target classification parameter, because the biological radar detection technology detects in the form of transmitting electromagnetic waves, the electromagnetic waves can reflect back to a biological radar echo signal after being scanned onto an object, the object can be furniture, animals, human bodies and the like, the target required to be detected in the embodiment is a human body, and therefore the target classification parameter needs to be set to position the detection target, wherein the target classification parameter can be set according to the special characteristics of the human body when being set, so as to distinguish whether the animal or the human body is used.
In an embodiment of the present invention, the radar integrated chip may adopt an IWR1642 chip or an AWR1443 chip, both of which are millimeter wave radar integrated chips applied in the industrial field, wherein a millimeter wave refers to an electromagnetic wave having a wavelength of 1 to 10 mm, and is mainly used for detecting contents such as the number of people, a scheme, tracking information, and the like of a target person in a space with high accuracy, which is less affected by light, weather, and the like in the surrounding environment, and has high detection accuracy, and the above chips integrate technologies such as transmission, reception, related digital signal processing, radar algorithm, and the like of a radar system.
After receiving the biological radar echo signals, the radar integrated chip analyzes the biological radar echo signals according to boundary parameters and preset target classification parameters, and the analysis process specifically comprises the following steps: radio frequency signal input (RFInput), ADC data acquisition (ADC Capture), radar signal Processing (FFT Processing fast fourier transform), Static Clutter interference cancellation (Static clearance Removal Algorithm), advanced target grouping and tracking (grouping Algorithm), and the like. The principle of human motion continuous wave radar detection (i.e. target tracking) is mainly implemented by using the doppler effect (the main content is that the wavelength of object radiation changes due to the relative motion of a wave source and an observer).
When the heartbeat and the respiratory frequency of a target person are detected by the radar integrated chip, the vibration of the fluctuation of the thorax of the coming person can be detected by millimeter waves (the vibration information of the thorax is composed of two parts, one is the heartbeat and the other is the respiration of the lung, the frequencies corresponding to the two vibrations are different), and the heartbeat frequency and the respiration frequency are respectively extracted by some special algorithms (the change of the phase of a reflected signal on the position at the same distance is detected, and the change of the distance is reversely deduced) after the vibration information is obtained.
In an embodiment of the present invention, regarding the analysis result performed by the radar integrated chip, further processing is required to be performed by the data processing chip, in this embodiment, the primary function is to implement PWV control of the air conditioner according to the analysis result of the radar integrated chip, and determining the analysis result includes: when the target person, the number of the target persons and the target characteristic information of each target person exist in the first detection area, the data processing chip can calculate the PWV value according to the number of the target persons and the target characteristic information of each target person; whether the PWV value meets a preset thermal comfort condition is further judged, the thermal comfort condition can be embodied through a PWV threshold value, and the PWV threshold value can be set differently in different seasons. The calculation of the PWV value can be implemented by adopting a PWV calculation model, wherein one PWV calculation model can be one of the following:
PMV＝[0.303*e-0036M+0.028]{M-W-3.05*10-3[5733-6.99(M-W)-Pa]-0.42[(M-W)-58.15]-1.7*10-5M(5867-Pa)-0.0014M(34-ta)-3.96*10-8fcl.[(tcl+273)4-(ts+273)4]-fclhc(tcl-ta)}
wherein e is natural constant, M is metabolism rate, W is human body power, PaIs the partial pressure of water vapour in the ambient air and can be determined on the basis of the room humidity, fclIs the ratio of the surface area of the body to the bare body, tsIs the mean radiant temperature, taIs the room temperature, tclAverage temperature of the outer surface of the body, h, for dressingcIs the convective heat transfer coefficient.
Further, since the higher the temperature is, the faster the human heartbeat frequency is, the faster the cardiopulmonary respiratory frequency is, and conversely, the lower the temperature is, the slower the human heartbeat frequency is, the slower the cardiopulmonary respiratory frequency is, a PWV calculation model may be constructed according to the human heartbeat frequency and the cardiopulmonary respiratory frequency, for example, the following PWV calculation model may be constructed:
PWV＝C0(A1-A0)+C1(B1-B0)
wherein, C0、C1Are all constants, A1For characterizing the average heart beat frequency of all target persons, A0For characterizing the average value of the heartbeat frequency in the comfortable state, B1For characterizing the mean cardiopulmonary respiratory frequency, B, of all target persons0Used for representing the average value of the heart-lung breathing frequency in a comfortable state.
It should be noted that the PWV calculation model also needs to be adjusted according to different requirements of different scenes, and a specific calculation equation of the PWV calculation model needs to be verified by a large amount to enable PWV control of the air conditioner to be more accurate.
When the calculated PWV value is larger than the PWV threshold value, PWV control is required to be carried out on the air conditioner, and comfort level adjustment is carried out in a mode of increasing the refrigerating capacity of the air conditioner, increasing the air speed of the air conditioner, adjusting the direction of an air outlet and the like; when the PWV value is smaller than the PWV threshold, PWV control needs to be performed on the air conditioner to adjust comfort level by reducing the cooling capacity of the air conditioner, or reducing the air speed of the air conditioner, or adjusting the direction of an air outlet.
Further, the data processing chip may perform at least the following processing functions according to the content in the analysis result:
1. the analysis results include: and posture change information of the target person and tracking the target person exists in the first detection area.
The first detection area may be a living room or an entire home space. The data processing chip can judge the posture change information tracking the existing target personnel according to the analysis result, if the target personnel is found to be in a standing posture at the last time node and in a lying posture at the next time node, the situation that the target personnel falls down can be judged, in the situation, a first alarm instruction can be generated, and the control panel gives an alarm according to the first alarm instruction so as to prompt other family personnel to pay attention to the situation, whether first aid is needed or not and the like.
2. The analysis result includes the presence of the target person in the second detection area.
Wherein, this second detection area can be danger areas such as balcony, kitchen, according to user's setting, need judge whether danger area has child to break into, has dangerous condition, and the data processing chip can judge whether this target person is the early warning personnel according to the target person condition that exists in the second detection area, can judge through target person's height, all characteristics of size at the decision-making in-process. If the person is a pre-warning person (such as a child), a second warning instruction can be generated, and the control panel gives a warning according to the second warning instruction so as to prompt other family personnel to pay attention to the condition.
3. The analysis result comprises the existence of the target person in the third detection area, and the cardiopulmonary respiratory frequency and the heartbeat frequency detected by the target person.
The third detection area can be areas such as a bedroom and the whole family space, whether a target person in a sleeping state exists or not is detected in the third detection area, the heart-lung breathing frequency and the heartbeat frequency of the target person are detected, so that the data processing chip judges whether the target person meeting the alarm condition exists or not, the alarm condition can be that the target person is judged to possibly have a health condition according to the heart-lung breathing frequency and the heartbeat frequency of the target person, a third alarm instruction needs to be generated at the moment, and the control panel alarms according to the third alarm instruction to prompt other family personnel to pay attention to the condition, whether first aid is needed or not and the like.
In an embodiment of the present invention, the control panel may implement the alarm processing by using an alarm, or may perform the alarm by sending the alarm information to the terminal device of the family member, which is not limited in this embodiment.
It should be noted that, in order to be able to add the radar integrated chip in the air conditioner, the data processing chip may be replaced by an existing component of the air conditioner, for example, when the air conditioner includes the WiFi intelligent module, the radar integrated chip may wirelessly transmit the analysis result to the WiFi intelligent module, and the WiFi intelligent module replaces the data processing chip to perform data processing.
In an embodiment of the present invention, since users in different scenes or different detection areas have different requirements, the method can be implemented by configuring the state switching parameters, for example, in some detection areas, target personnel needs to be positioned and tracked, in some detection areas, target personnel does not need to be positioned and tracked, and only whether target personnel enters is detected, at this time, different state switching parameters can be set for different detection areas, so as to implement different requirements.
According to the embodiment of the invention, the PWV control of the air conditioner can be realized more accurately, the requirement of the user on thermal comfort is met, the existing functions are expanded, and the health condition and the dangerous condition of family members can be monitored.
The embodiment of the invention also provides an air conditioner, which comprises any one of the air conditioner PWV control systems integrated with the biological radar detection technology in the embodiments.
In an embodiment of the invention, a radar integrated chip in the PWV control system of the air conditioner integrated with the biological radar detection technology can be arranged inside the air conditioner; the mounting height, the angle and the like of the radar integrated chip can affect the accuracy rate of a detection result, therefore, in order to ensure that the radar integrated chip can more accurately obtain the detection result after the air conditioner is mounted, when the air conditioner is in a mounting completion state, the radar integrated chip forms an included angle of 10-45 degrees with the horizontal plane, and/or the height from the ground is 2-2.5 meters, so that parameters beyond the boundary can be filtered without filtering points which are not interested through a complex algorithm.
Referring to fig. 2, based on the air conditioner, an embodiment of the present invention further provides a PWV control method for an air conditioner incorporating a biological radar detection technology, where the method includes:
step 201: setting boundary parameters aiming at least one detection area needing to be detected; and setting target classification parameters for the detection target.
In order to guarantee to apply the biological radar detection technology to the space with the air conditioning unit, for example, places such as family, office, KTV need set up different detection areas to different application scenarios, can divide detection area through the mode that sets up boundary parameter to use family as an example, can set up boundary parameter according to the demand, in order to determine at least one detection area, wherein the detection area that can set up is: by setting boundary parameters, the radar integrated chip can only analyze the positioned target personnel in each detection area and does not consider the target personnel positioned outside the detection area.
Can be through setting up target classification parameter with the location detection target, because the biological radar detection technology detects through the form of launching the electromagnetic wave, the electromagnetic wave can reflect back biological radar echo signal after scanning to the object, this object can furniture, animal, human body etc., the target that this embodiment needs to detect is the human body, consequently, need set up target classification parameter and fix a position the detection target, wherein, this target classification parameter can set up according to human exclusive characteristic when setting up to distinguish whether animal or human body.
Step 202: and radiating electromagnetic wave signals into the space by using the radar integrated chip, receiving biological radar echo signals, analyzing the biological radar echo signals according to the boundary parameters and the target classification parameters, and sending an analysis result to a data processing chip.
In an embodiment of the present invention, state switching parameters may also be configured for different scenes or different detection areas, for example, in some detection areas, target people need to be located and tracked, in some detection areas, target people do not need to be located and tracked, and only whether a target person enters is detected, at this time, different state switching parameters may be set for different detection areas to achieve different requirements.
The radar integrated chip can detect and scan each detection area according to boundary parameters, target classification parameters and state switching parameters so as to determine whether target personnel exist in the detection area or not and whether the target personnel are positioned and tracked to acquire target characteristic information of the target personnel or not.
Step 203: determining the analysis result using the data processing chip comprises: target personnel, the number of the target personnel and target characteristic information of each target personnel exist in the first detection area; calculating a PWV value according to the number of the target persons and the target characteristic information of each target person; and further judging whether the PWV value meets a preset thermal comfort condition, if not, generating an air conditioning mode adjusting instruction, and sending the air conditioning mode adjusting instruction to a control panel.
In this embodiment, the thermal comfort condition may be embodied by one PWV threshold, and in different seasons, the PWV threshold may be set differently, and when the calculated PWV value is greater than the PWV threshold, the air conditioner needs to be PWV controlled, so as to adjust the comfort by increasing the cooling capacity of the air conditioner, increasing the air speed of the air conditioner, or adjusting the direction of the air outlet; when the PWV value is smaller than the PWV threshold, PWV control needs to be performed on the air conditioner to adjust comfort level by reducing the cooling capacity of the air conditioner, or reducing the air speed of the air conditioner, or adjusting the direction of an air outlet.
Wherein the PWV value may be calculated by a PWV calculation model.
Step 204: and adjusting the current air-conditioning mode by using the control panel according to the air-conditioning mode adjusting instruction.
Further, the data processing chip may perform at least the following processing functions according to the content in the analysis result:
1. determining the analysis result using the data processing chip comprises: posture change information of target personnel and tracking the target personnel exists in the first detection area; then, whether a target person falls down is further judged according to the posture change information, if yes, a first alarm instruction is generated, and the first alarm instruction is sent to the control panel; the control panel further gives an alarm according to the first alarm instruction.
2. Determining the analysis result using the data processing chip comprises: if the target person exists in the second detection area, whether the target person existing in the second detection area is an early warning person is further judged, if yes, a second alarm instruction is generated, and the second alarm instruction is sent to the control panel; and the control panel further gives an alarm according to the second alarm instruction.
3. Determining the analysis result using the data processing chip comprises: if a target person, the cardiopulmonary respiration frequency and the heartbeat frequency detected by the target person exist in the third detection area, judging whether the target person meeting the alarm condition exists according to the cardiopulmonary respiration frequency and the heartbeat frequency detected, if so, generating a third alarm instruction, and sending the third alarm instruction to the control panel; and the control panel further gives an alarm according to the third alarm instruction.
In summary, the embodiment of the present invention at least has the following beneficial effects:
1. in the embodiment of the invention, at least one detection area needing to be detected is determined by setting boundary parameters, target personnel is positioned by setting target classification parameters, a radar integrated chip detects the target personnel in each detection area, a data processing chip processes the analysis result of the detection, and when the target personnel, the number of the target personnel and the target characteristic information of each target personnel exist in a first detection area, PWV control is carried out on the air conditioner by calculating a PWV value and judging whether the PWV value meets a preset thermal comfort condition or not. This scheme adopts biological radar detection technique, can not cause the privacy for the user like camera collection image picture to reveal, and the electromagnetic wave not only has the penetrability, still does not receive the influence of factors such as light, detection angle, and the rate of accuracy is higher when carrying out PMV control to the air conditioner.
2. In the embodiment of the invention, the air conditioning function can be expanded by utilizing the biological radar detection technology, for example, whether a person falls down, whether a child approaches a dangerous position, the health condition of the human body in a deep sleep state and the like can be monitored through an analysis result, and if an abnormal condition is found, an alarm mechanism is triggered to help family members to get away from a dangerous environment.
3. In the embodiment of the invention, by setting the installation position and angle of the radar integrated chip in the air conditioner, parameters outside the boundary can be filtered without filtering points which are not interested by a complex algorithm, and the accuracy of the detection and analysis result is further improved.
It is to be understood that the illustrated configuration of the embodiment of the present invention does not constitute a specific limitation to the status data processing apparatus. In other embodiments of the invention, the state data processing apparatus may include more or fewer components than shown, or some components may be combined, some components may be split, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.
Because the information interaction, execution process, and other contents between the units in the device are based on the same concept as the method embodiment of the present invention, specific contents may refer to the description in the method embodiment of the present invention, and are not described herein again.
While the invention has been shown and described in detail in the drawings and in the preferred embodiments, it is not intended to limit the invention to the embodiments disclosed, and it will be apparent to those skilled in the art that various combinations of the code auditing means in the various embodiments described above may be used to obtain further embodiments of the invention, which are also within the scope of the invention.
Claims (10)
1. An air conditioner PWV control system fusing biological radar detection technology, characterized by comprising: the radar system comprises a radar integrated chip, a data processing chip and a control panel;
the radar integrated chip is used for determining at least one detection area needing to be detected according to preset boundary parameters; radiating electromagnetic wave signals into the space, receiving biological radar echo signals, analyzing the biological radar echo signals according to the boundary parameters and preset target classification parameters, and sending an analysis result to the data processing chip;
the data processing chip is configured to, in determining the analysis result, include: target personnel, the number of the target personnel and target characteristic information of each target personnel exist in the first detection area; calculating a PWV value according to the number of the target persons and the target characteristic information of each target person; further judging whether the PWV value meets a preset thermal comfort condition, if not, generating an air conditioning mode adjusting instruction, and sending the air conditioning mode adjusting instruction to a control panel;
and the control panel is used for adjusting the current air-conditioning mode according to the air-conditioning mode adjusting instruction.
2. The air conditioner PWV control system fusing the biological radar detection technology as recited in claim 1, wherein the data processing chip is further configured to, in determining the analysis result, comprise: posture change information of target personnel and tracking the target personnel exists in the first detection area; then, whether a target person falls down is further judged according to the posture change information, if yes, a first alarm instruction is generated, and the first alarm instruction is sent to the control panel;
the control panel is further used for alarming according to the first alarm instruction.
3. The air conditioner PWV control system fusing the biological radar detection technology as recited in claim 1, wherein the data processing chip is further configured to, in determining the analysis result, comprise: if the target person exists in the second detection area, whether the target person existing in the second detection area is an early warning person is further judged, if yes, a second alarm instruction is generated, and the second alarm instruction is sent to the control panel;
the control panel is further used for alarming according to the second alarm instruction.
4. The air conditioner PWV control system fusing the biological radar detection technology as recited in claim 1, wherein the data processing chip is further configured to, in determining the analysis result, comprise: if a target person, the cardiopulmonary respiration frequency and the heartbeat frequency detected by the target person exist in the third detection area, judging whether the target person meeting the alarm condition exists according to the cardiopulmonary respiration frequency and the heartbeat frequency detected, if so, generating a third alarm instruction, and sending the third alarm instruction to the control panel;
the control panel is further used for alarming according to the third alarm instruction.
5. An air conditioner, characterized in that the air conditioner comprises the air conditioner PWV control system which integrates the biological radar detection technology according to any one of the claims 1 to 4.
6. The air conditioner according to claim 5, wherein the radar integrated chip in the PWV control system of the air conditioner integrated with the biological radar detection technology is arranged inside the air conditioner; when the air conditioner is in an installation completion state, the included angle between the radar integrated chip and the horizontal plane is 10-45 degrees, and/or the height from the ground is 2-2.5 meters.
7. An air conditioner PWV control method fused with biological radar detection technology, applied to the air conditioner of claim 5 or 6, characterized by comprising:
setting boundary parameters aiming at least one detection area needing to be detected; setting target classification parameters aiming at the detection target;
radiating electromagnetic wave signals into the space by using the radar integrated chip, receiving biological radar echo signals, analyzing the biological radar echo signals according to the boundary parameters and the target classification parameters, and sending an analysis result to a data processing chip;
determining the analysis result using the data processing chip comprises: target personnel, the number of the target personnel and target characteristic information of each target personnel exist in the first detection area; calculating a PWV value according to the number of the target persons and the target characteristic information of each target person; further judging whether the PWV value meets a preset thermal comfort condition, if not, generating an air conditioning mode adjusting instruction, and sending the air conditioning mode adjusting instruction to a control panel;
and adjusting the current air-conditioning mode by using the control panel according to the air-conditioning mode adjusting instruction.
8. The air conditioner control method fusing the biological radar detection technology according to claim 7, characterized by further comprising:
determining the analysis result using the data processing chip comprises: posture change information of target personnel and tracking the target personnel exists in the first detection area; then, whether a target person falls down is further judged according to the posture change information, if yes, a first alarm instruction is generated, and the first alarm instruction is sent to the control panel;
the control panel further gives an alarm according to the first alarm instruction.
9. The air conditioner control method fusing the biological radar detection technology according to claim 7, characterized by further comprising:
determining the analysis result using the data processing chip comprises: if the target person exists in the second detection area, whether the target person existing in the second detection area is an early warning person is further judged, if yes, a second alarm instruction is generated, and the second alarm instruction is sent to the control panel;
and the control panel further gives an alarm according to the second alarm instruction.
10. The air conditioner control method fusing the biological radar detection technology according to claim 7, characterized by further comprising:
determining the analysis result using the data processing chip comprises: if a target person, the cardiopulmonary respiration frequency and the heartbeat frequency detected by the target person exist in the third detection area, judging whether the target person meeting the alarm condition exists according to the cardiopulmonary respiration frequency and the heartbeat frequency detected, if so, generating a third alarm instruction, and sending the third alarm instruction to the control panel;
and the control panel further gives an alarm according to the third alarm instruction.
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