Human sensor integrated with multiple sensor functions
By integrating a human sensor that combines radar, environmental parameters, and sound sensors, the problem of misidentification by a single sensor is solved, enabling intelligent control of the air conditioner and improving the user experience.
Patent Information
- Application Number
- CN202511149792.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-18
- Publication Date
- 2025-11-28
AI Technical Summary
Existing human-sensing sensors, due to their use of a single type of sensor, are prone to false identification when other objects are detected in the area, resulting in a high false detection rate that affects the accuracy of air conditioning control and user experience.
Human-sensing sensors that integrate multiple sensor functions, including radar sensors, environmental parameter sensors, and sound sensors, reduce false detection rates through collaborative detection, enabling intelligent control of air conditioning.
By using multi-sensor collaborative detection, the false detection rate was reduced, the user experience was improved, intelligent adjustment of the air conditioner was achieved, and the accuracy of detection and user satisfaction were increased.
Smart Images
Figure CN121028073A_ABST
Abstract
Description
Technical Field
[0001] The embodiments disclosed herein relate to the field of air conditioning sensor technology, and more specifically to human sensing sensors that integrate multiple sensor functions. Background Technology
[0002] Air conditioners are common household appliances that can be linked to human detection sensors. By detecting the location and number of people, the air conditioner can be intelligently controlled. Existing human detection sensors often use a single type of sensor for human perception, such as infrared sensors or millimeter-wave radar sensors.
[0003] However, when using the aforementioned human sensor for human perception, a single type of sensor may misidentify the presence of other objects in the detection area, often resulting in a high false detection rate for human perception. This leads to technical problems such as the air conditioner adjusting based on incorrect identification, resulting in a poor user experience.
[0004] The information disclosed in this background section is only intended to enhance the understanding of the background of the inventive concept, and therefore may contain information that does not constitute prior art known to those skilled in the art. Summary of the Invention
[0005] The summary portion of this disclosure is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description portion. This summary portion is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.
[0006] Some embodiments of this disclosure propose a human sensing sensor that integrates multiple sensor functions to solve one or more of the technical problems mentioned in the background section above.
[0007] Some embodiments of this disclosure provide a human sensing sensor integrating multiple sensor functions. The human sensing sensor includes: a detection component, a communication component, and a control component. The detection component includes a radar sensor, an environmental parameter sensor, and a sound sensor. The radar sensor includes a main radar sensor and an auxiliary radar sensor. The main radar sensor is configured to detect the quantity of target objects within a target area, and the auxiliary radar sensor is configured to detect the activity level of the target objects. The environmental parameter sensor is configured to detect environmental data of the target area, and the sound sensor is configured to detect sound data of the target area. The control component includes a control chip. Both the detection component and the communication component are communicatively connected to the control component.
[0008] Optionally, the aforementioned human sensor further includes a mounting assembly, which includes a housing, a mounting base, and a clamping assembly; the aforementioned detection assembly, communication assembly, and control assembly are installed inside the aforementioned housing; the aforementioned housing is embedded in the aforementioned mounting base, the aforementioned mounting base is provided with a connecting plate, and the aforementioned clamping assembly is detachably connected to the aforementioned connecting plate.
[0009] Optionally, the outer casing is provided with a positioning pin on its side, and the mounting base is provided with a positioning hole, wherein the positioning pin is configured to be able to be inserted into the positioning hole.
[0010] Optionally, the front of the aforementioned housing is provided with a radar area, an infrared area, an environmental area, and an acoustic area; the back of the aforementioned housing is provided with a cable pass-through hole.
[0011] Optionally, the aforementioned auxiliary radar sensor is further configured to: generate an activity signal every first preset time interval in response to detecting the activity of the aforementioned target object; and generate an inactivity signal every first preset time interval in response to not detecting the activity of the aforementioned target object.
[0012] Optionally, the communication component is connected to an external device, wherein the external device includes at least one of the following: a mobile terminal and an air conditioning unit.
[0013] Optionally, the mobile terminal is configured to set the detection configuration information of the human sensor, wherein the detection configuration information includes at least one of the following: sensitivity, detection angle, and detection range.
[0014] Optionally, the aforementioned sound data includes sound intensity and duration; the control chip is configured to perform the following steps: in response to the main radar sensor detecting the quantity information of the target object, acquiring the number of activity signals within a second preset duration to obtain an activity signal count set, wherein the duration of the second preset duration is longer than the first preset duration; classifying the activity signal count set based on a first preset level to obtain an activity level; synchronously acquiring the sound data within the second preset duration to obtain sound intensity and duration; classifying the sound data based on the sound intensity and duration to obtain a sound level; synchronously acquiring the environmental data within the second preset duration to obtain environmental data; generating an activity type based on the quantity information, the activity level, the sound level, and the environmental data; and generating adjustment information for the air conditioning equipment based on the activity type.
[0015] The above embodiments of this disclosure have the following beneficial effects: The human sensor of some embodiments of this disclosure can reduce the false detection rate and improve the user experience. Specifically, the reason for the high false detection rate of human sensors and the poor user experience is that a single type of sensor may misidentify the presence of other objects in the detection area, leading to a high false detection rate. Air conditioning then adjusts based on these incorrect identifications, resulting in a poor user experience. Based on this, some embodiments of this disclosure provide a human sensor integrating multiple sensor functions. This human sensor includes: a detection component, a communication component, and a control component. The detection component includes a radar sensor, an environmental parameter sensor, and a sound sensor. The radar sensor includes a main radar sensor and an auxiliary radar sensor. The main radar sensor is configured to detect the quantity of target objects within a target area, and the auxiliary radar sensor is configured to detect the activity level of the target objects. The environmental parameter sensor is configured to detect environmental data in the target area, and the sound sensor is configured to detect sound data in the target area. The control component includes a control chip. Both the detection component and the communication component are communicatively connected to the control component. By integrating multiple sensors and using collaborative detection among them, the false detection rate is reduced, enabling intelligent control of the air conditioner and improving the user experience. Attached Figure Description
[0016] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and elements are not necessarily drawn to scale.
[0017] Figure 1 This is a schematic diagram of the structure of a human sensing sensor integrating multiple sensor functions according to some embodiments of this disclosure;
[0018] Figure 2 This is a front view of the mounting assembly of a human sensor according to some embodiments of this disclosure;
[0019] Figure 3 This is a side view of the mounting assembly of a human sensor according to some embodiments of this disclosure;
[0020] Figure 4 This is a bottom view of the mounting assembly of a human sensor according to some embodiments of this disclosure. Detailed Implementation
[0021] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.
[0022] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.
[0023] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.
[0024] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0025] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.
[0026] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] Figure 1 This is a schematic diagram of a human-sensing sensor integrating multiple sensor functions according to some embodiments of this disclosure. Figure 1 It includes a main radar sensor 1, an auxiliary radar sensor 2, an environmental parameter sensor 3, a sound sensor 4, a control component 5, a communication component 6, and external devices 7.
[0028] In some embodiments, the aforementioned human sensing sensor includes a detection component, a communication component 6, and a control component 5. The detection component may include a radar sensor, an environmental parameter sensor 3, and a sound sensor 4. The detection component is used to detect the quantity of target objects, the activity level of target objects, environmental data, and sound data. The communication component 6 may include, but is not limited to, WiFi and Bluetooth, for communication with the control component 5 and an external device 7. The external device 7 may be an air conditioning unit, capable of regulating indoor temperature and humidity. The radar sensor may include a main radar sensor 1 and an auxiliary radar sensor 2. The main radar sensor 1 may be a millimeter-wave radar, used to detect the quantity of target objects. The main radar sensor 1 is configured to detect the quantity of target objects within a target area, which may be an area where people frequently move around indoors, such as the sofa and hallway in a living room. The target objects may be people. The quantity information can characterize the quantity of the target objects. The auxiliary radar sensor 2 may be a pyroelectric infrared sensor, capable of detecting moving objects. The auxiliary radar sensor 2 is configured to detect the activity level of the target objects. The activity level can characterize the activity frequency of the target objects. The aforementioned activity level can be determined based on the time it takes for the auxiliary radar sensor 2 to detect the target object. For example, if the target object is detected moving for more than two minutes within a three-minute period, the activity level is considered high; if it is detected for more than one minute but less than two minutes, the activity level is considered medium; and if it is detected for less than one minute, the activity level is considered low. This activity level can be used to determine the type of activity of the target object. The types of activity may include, but are not limited to: exercise, meetings, housework, sitting still, and lying down.
[0029] In some embodiments, the environmental parameter sensor 3 can be a CO2 sensor, integrating temperature and humidity sensor functions to detect CO2 concentration, temperature, and humidity. The environmental data may include CO2 concentration, temperature, and humidity. The sound sensor 4 is used to detect sound intensity, sound frequency, and duration. The sound data may include the sound intensity, sound frequency, and duration. Specifically, the main radar sensor 1 can detect the quantity of target objects. If the quantity is zero, the auxiliary radar sensor 2, the environmental parameter sensor 3, and the sound sensor 4 can enter a sleep mode, i.e., not perform detection to reduce power consumption. Only the main radar sensor 1 continues scanning to ensure timely detection when target objects pass by. If the quantity is not zero, the auxiliary radar sensor 2 detects the activity level of the target object, the environmental parameter sensor 3 detects environmental data, and the sound sensor 4 detects sound data, transmitting the detected data to the control component 5.
[0030] In some embodiments, both the detection component and the communication component 6 are communicatively connected to the control component 5. The control component 5 may include a control chip for functions such as static micro-animal interference filtering and pet detection. The static micro-animal interference filtering can remove interference from static or slightly moving objects on the detection of the human sensor. It should be noted that the auxiliary radar sensor 2 can detect moving objects, but cannot detect static or slightly moving objects. Specifically, if the main radar sensor 1 detects the number of target objects within the target area, the auxiliary radar sensor 2 does not detect any target objects, the sound sensor 4 does not detect any sound data, and the environmental parameter sensor 3 detects that the CO2 concentration is within the range of CO2 concentration when no one is present, then the target object detected by the main radar sensor 1 can be determined to be a static or slightly moving object. The CO2 concentration range when no one is present can be 500-700 ppm, which is higher than the outdoor CO2 concentration, which can be 400-500 ppm. For example, a curtain blown by the wind has a small movement that cannot be detected by the auxiliary radar sensor 2, but can be detected by the main radar sensor 1. Since the curtain does not produce CO2, the CO2 concentration is the same as when no one is present. If the CO2 concentration is higher than when no one is present, the rate of increase in CO2 concentration can be used to determine whether it is a pet. Specifically, pets have a slower metabolic rate than humans, so the CO2 concentration increases slowly when only a pet is present. For example, an adult can increase the CO2 concentration by 200-300 ppm per hour, and a dog can increase it by 40-60 ppm per hour. The rate of increase in CO2 concentration can be used to determine whether a static or slightly moving object is a pet or a person, thus achieving static human detection. The above-mentioned pet detection can determine whether a detected target object is a pet. Specifically, the main radar sensor 1 detects the number of target objects in the target area, the auxiliary radar sensor 2 detects the activity level of the target object, the sound sensor 4 detects high-frequency short barks, and the environmental parameter sensor 3 detects a low CO2 concentration. Therefore, the detected target object can be determined to be a pet. It's important to note that, in the same amount of time, a pet emits less CO2 than a person. Therefore, the CO2 concentration in the presence of only a pet is lower than the CO2 concentration in the presence of only a person. Pet barks are typically high-frequency, short-duration sounds, such as those of cats and dogs, with a high frequency and short duration. By using multiple sensors in tandem, interference from static or slightly moving objects and pets can be eliminated, enabling the detection of stationary human bodies and reducing the false detection rate of human detection sensors.
[0031] Figure 2 This is a front view of the mounting assembly of a human-sensing sensor according to some embodiments of this disclosure. Figure 2It includes a housing 8, a mounting base 9, a wire hole 10, a clamping assembly 11, and an infrared zone 12.
[0032] Figure 3 This is a side view of the mounting assembly of a human sensor according to some embodiments of this disclosure. Figure 3 It includes positioning hole 14, connecting plate 17, and baffle 18.
[0033] Figure 4 This is a bottom view of the mounting assembly of a human sensor according to some embodiments of this disclosure. Figure 4 It includes acoustic zone 13, environmental zone 15, and radar zone 16.
[0034] Optionally, the aforementioned human sensor further includes a mounting assembly for mounting the human sensor. The mounting assembly includes a housing 8, a mounting base 9, and a clamping assembly 11. It should be noted that the aforementioned human sensor is a top-mounted sensor. For aesthetic purposes, the shape of the housing 8 of the human sensor can be similar to the shape of a lamp. For example, if the top-mounted lamp is circular, the housing 8 can be cylindrical, so that the human sensor does not appear obtrusive after installation. The housing 8 can be a cylindrical shell. The aforementioned detection assembly, communication assembly 6, and control assembly 5 are mounted inside the housing 8. The mounting base 9 can be an annular sleeve, allowing the housing 8 to be embedded in the mounting base 9. The mounting base 9 is provided with a baffle 18 and a connecting plate 17. The baffle 18 can be a circular plate structure located at one end of the mounting base 9, and can be perpendicular to the mounting base 9, forming an "L" shape. After the outer casing 8 is embedded in the mounting base 9, it can be flush with the baffle 18. During installation, the baffle 18 can be aligned with the ceiling, making the human sensor less obtrusive. The connecting plate 17 can be located at the other end of the mounting base 9. The connecting plate 17 can be a protruding arc-shaped plate structure of the mounting base 9, which can fit against the side of the outer casing 8. The end of the connecting plate 17 away from the baffle 18 is provided with a fixed shaft. The fixed shaft can be the shaft around which the clamping assembly 11 can rotate. The clamping assembly 11 can be a rotating arm with a torsion spring. The rotating arm can be a "U"-shaped structure, with the open end of the "U"-shaped structure connected to the torsion spring. The torsion spring is nested in the fixed shaft, allowing the rotating arm to rotate around the fixed shaft. The clamping assembly 11 and the connecting plate 17 are detachably connected. The torsion spring can use elastic deformation to keep the rotating arm tightly against the baffle 18. Two connecting plates 17 can be symmetrically arranged, and two clamping components 11 can be correspondingly arranged, which can prevent the human sensor from falling off after installation. Specifically, during installation, a hole can be drilled in the ceiling first, with the diameter of the hole being larger than the diameter of the mounting base 9 and smaller than the diameter of the baffle 18. Then, the rotating arm is rotated to the other end, and the human sensor is inserted into the hole. The rotating arm is then released to return it to its original position, thus fixing the human sensor.
[0035] Optionally, the outer casing 8 is provided with a positioning pin on its side. The positioning pin can be a cylindrical structure protruding from the side of the outer casing 8. The positioning pin is not shown in the figures. Two positioning pins can be provided along the side of the outer casing 8. For example, one positioning pin can be provided every 180°, so that the two positioning pins are in a straight line. The mounting base 9 is provided with a positioning hole 14, which can be a cylindrical hole. The positioning pin matches the position and shape of the positioning hole 14, and the positioning pin is configured to be able to fit into the positioning hole 14, allowing the positioning pin to rotate within the positioning hole 14. The angle of the outer casing 8 can be adjusted by the positioning pin and the positioning hole 14, thereby adjusting the detection angle of the human sensor.
[0036] Optionally, the front of the aforementioned housing 8 is provided with a radar area 16, an infrared area 12, an environmental area 15, and an acoustic area 13. The radar area 16 can be the area where the main radar sensor 1 is installed. The infrared area 12 can be the area where the auxiliary radar sensor 2 is installed. The infrared area 12 is provided with a lens, which can be a Fresnel lens, to concentrate weak infrared signals over a wider range onto the auxiliary radar sensor 2, thereby improving the detection sensitivity of the auxiliary radar sensor 2. The environmental area 15 can be the area where the environmental parameter sensor 3 is installed. The environmental area 15 is provided with vents, which can be tiny channels, to allow air in the air to contact the environmental parameter sensor 3, thereby increasing the detection accuracy of the environmental parameter sensor 3. The acoustic area 13 can be the area where the sound sensor 4 is installed. The acoustic area 13 is also provided with vents to improve the detection sensitivity of the sound sensor 4. The back of the aforementioned housing 8 is provided with a wire hole 10, which can be a hole for passing through the power supply wire of the aforementioned human sensor, and can be connected to a power supply wire to power the aforementioned human sensor.
[0037] Optionally, the auxiliary radar sensor 2 is further configured to generate an activity signal every first preset time interval in response to detecting activity of the target object. The first preset time interval can be a pre-set duration. For example, the first preset time interval can be 1 second. The activity signal can be a high-level signal. In practice, a high-level signal can be generated once per second in response to detecting activity of the target object. In response to no activity of the target object being detected, an inactivity signal is generated every first preset time interval. The inactivity signal can be a low-level signal. In practice, a low-level signal can be generated once per second in response to no activity of the target object being detected.
[0038] Optionally, the communication component 6 is communicatively connected to an external device 7, wherein the external device 7 includes, but is not limited to, a mobile terminal and an air conditioning unit. The mobile terminal may include, but is not limited to, a mobile phone, tablet, or computer, and can receive data detected by the human sensor through a designated APP. The designated APP may be an APP adapted to the human sensor. The air conditioning unit may have a fresh air function to deliver fresh air to the room, reduce CO2 concentration, and improve air quality.
[0039] Optionally, the mobile terminal is configured to set the detection configuration information of the human sensor, wherein the detection configuration information includes, but is not limited to, sensitivity, detection angle, and detection range. Specifically, the detection configuration information can be set through the designated APP.
[0040] Optionally, the aforementioned sound data may include sound intensity and duration. The aforementioned control chip is configured to perform the following steps:
[0041] The first step involves, in response to the number of target objects detected by the main radar sensor 1, acquiring the number of activity signals within a second preset time period to obtain an activity signal count set. The second preset time period is longer than the first preset time period. The second preset time period can be a pre-set duration, for example, 5 minutes. In practice, the number of activity signals within the second preset time period can be recorded, and this recorded count is used as the activity signal count set. For example, if 200 activity signals are recorded within five minutes, the activity signal count set is 200, with an upper limit of 300.
[0042] The second step is to determine the activity level corresponding to the aforementioned activity signal count set based on the preset level information set. The preset level information in the preset level information set represents the correspondence between the range of the activity signal count set and the activity level. For example, the preset level information could be "Range of activity signal count set: 0-30 times, Activity level: Level 1". In practice, the preset level information corresponding to the activity signal count set in the preset level information set can be determined as the target preset level information. For example, if the activity signal count set is 35 times, the corresponding preset level information would be: "Range of activity signal count set: 30-60 times, Activity level: Level 2". Then, the activity levels included in the target preset level information are determined as the activity levels corresponding to the aforementioned activity signal count set. It should be noted that the preset level information set can include 10 preset level information items. The preset level information items within the preset level information set are sorted in ascending order. The number of activity signals between any two adjacent preset gear information sets in the above preset gear information set is 30, and the interval between activity levels is 1.
[0043] The third step is to synchronously acquire the sound data within the second preset duration to obtain the sound intensity and duration. In practice, the sound intensity and duration within the second preset duration can be recorded. For example, record the sound data for 5 minutes to obtain the sound intensity and duration.
[0044] The fourth step is to classify the sound data based on the sound intensity and duration to obtain sound levels. In practice, the sound intensity and duration can be classified separately, and then combined to obtain sound levels. For example, sound intensity can be divided into four levels: silent, low intensity, medium intensity, and high intensity. Silence can be defined as a sound intensity of no more than 40dB, low intensity as a sound intensity between 40 and 60dB, medium intensity as a sound intensity between 60 and 80dB, and high intensity as a sound intensity exceeding 80dB. Duration can be divided into four levels: instantaneous, short, medium, and long. Instantaneous can be no more than 10s, short can be 10–60s, medium can be 60–120s, and long can be more than 120s. Combining each of the four sound intensity levels with each of the duration levels yields sixteen levels. For example, if the sound intensity is silent and the duration is instantaneous, the sound level is level 1; if the sound intensity is silent and the duration is short, the sound level is level 2; and so on. If the sound intensity is high and the duration is long, the sound level is level 16.
[0045] The fifth step involves simultaneously acquiring the environmental data within the second preset time period. This environmental data may include CO2 concentration, temperature, and humidity. In practice, recording the environmental data within the second preset time period, including CO2 concentration, temperature, and humidity, can reflect the comfort level and air quality of the indoor environment. Higher CO2 concentrations indicate worse air quality. For example, an indoor CO2 concentration of less than 700 ppm is considered a comfortable environment with good air quality. When the indoor CO2 concentration is greater than or equal to 1000 ppm, people will feel uncomfortable, and the air quality is poor. Indoor humidity can be between 50% and 65%, which is comfortable for the human body. When humidity exceeds 65%, the environment is excessively humid, making people feel stuffy. When humidity is below 50%, the environment is relatively dry, causing dry mouth and throat.
[0046] Step 6: Based on the aforementioned quantitative information, activity level, sound level, and environmental data, generate the activity type. The activity type can reflect the target object's behavior indoors, and may include, but is not limited to, exercise, meetings, housework, sitting, and lying down. In practice, the activity type can be generated based on a preset decision logic tree. This preset decision logic tree can be a decision tree that takes quantitative information, activity level, sound level, and environmental data as input and outputs the activity type. For example, the preset decision logic tree can be a multi-branch decision tree, where quantitative information, activity level, sound level, and environmental data can be sequentially input to obtain the activity type. For example, when the quantitative information is non-zero, the activity level is level 8, the sound level is level 1 (i.e., silent and momentary), and the CO2 concentration is greater than or equal to 1000 ppm, then the activity type can be exercise. When the above quantity information is greater than or equal to 3, the above activity level is level 5, the above sound level is level 12 (i.e., medium intensity and long duration), and the above CO2 concentration is greater than or equal to 1000ppm, then the above activity type can be a meeting.
[0047] Step 7: Based on the aforementioned activity types, generate adjustment information for the air conditioning equipment. This adjustment information may include, but is not limited to, temperature settings, activation or deactivation of the fresh air function, fan speed settings, and activation or deactivation of humidification and dehumidification functions. For example, when the detected activity type is exercise, the air conditioning equipment can be set to lower the temperature and increase the fan speed to provide a cooler indoor environment. Simultaneously, the fresh air function can be activated to deliver fresh air into the room, reducing CO2 concentration and further improving indoor air quality. If the indoor environment is relatively dry, the humidification function can be activated; if the indoor environment is relatively humid, the dehumidification function can be activated. When the detected activity type is a meeting, the air conditioning equipment can be set to maintain the existing temperature and activate the fresh air function to deliver fresh air into the room, reducing CO2 concentration and improving indoor air quality. Through this intelligent adjustment method, the air conditioning equipment can provide a personalized comfortable environment according to different activity types, meeting the diverse needs of users.
[0048] In the process of adopting technical solutions to address the aforementioned technical problems, the following technical problem often arises: When users move into newly renovated homes, harmful gases such as formaldehyde still exist in the indoor air, reducing air quality. For example, furniture placed indoors can produce harmful gases such as formaldehyde. While the fresh air function of an air conditioner can be used to ventilate and improve air quality, the power of the fresh air function is fixed and cannot be dynamically adjusted according to the concentration of harmful gases such as formaldehyde, often resulting in high energy consumption. Conventional solutions to these problems typically involve opening windows for ventilation or using an air purifier. However, considering the low efficiency of opening windows for ventilation and the need to purchase additional equipment for air purification, increasing costs, and taking into account the technology available to the inventor's organization, the following solution was chosen.
[0049] Optionally, the detection component further includes a harmful gas sensor, which can be a sensor for detecting harmful gases such as formaldehyde and TVOC in indoor air. The harmful gas sensor is configured to detect harmful gas concentration data, which may include formaldehyde concentration and TVOC concentration. The communication component 6 is communicatively connected to a mobile terminal and an air conditioning unit. The mobile terminal may include, but is not limited to, a mobile phone or tablet, and can set the application scenario of the human sensor through a designated APP. The designated APP may be an APP adapted to the human sensor. The mobile terminal is configured to set the application scenario of the human sensor through the designated APP, wherein the application scenario includes at least one of the following: living room, bedroom. The air conditioning unit has a fresh air function. The sound sensor 4 has a timer and a buzzer. The control chip is configured to configure a preset concentration threshold according to the set application scenario, wherein the preset concentration threshold includes a formaldehyde concentration threshold and a TVOC concentration threshold. In practice, the formaldehyde concentration threshold and TVOC concentration threshold can be configured through the designated APP. It should be noted that, under good ventilation conditions, the formaldehyde concentration in bedrooms and living rooms should be below 0.08 mg / m³. 3 The TVOC concentration should be below 0.6 mg / m³. Excessive formaldehyde and TVOC concentrations can harm human health. However, because bedrooms are often enclosed and people spend a lot of time there, the formaldehyde and TVOC concentration thresholds for bedrooms can be set lower than those for living rooms. For example, the formaldehyde concentration threshold for bedrooms could be set at 0.06 mg / m³. 3 The TVOC concentration threshold was set at 0.4 mg / m³. 3 The formaldehyde concentration threshold for the living room is set at 0.08 mg / m³. 3 The TVOC concentration threshold was set at 0.6 mg / m³. 3 The aforementioned control chip is further configured to perform the following steps:
[0050] Step 1: Obtain the above-mentioned harmful gas concentration data to obtain the formaldehyde concentration and TVOC concentration. In practice, the formaldehyde and TVOC concentrations in indoor air can be obtained using the aforementioned harmful gas sensors. The formaldehyde and TVOC concentrations can be obtained at regular intervals (e.g., every minute) to ensure the real-time nature and accuracy of the data.
[0051] Step 2: Based on the aforementioned formaldehyde concentration and TVOC concentration, determine the first concentration threshold corresponding to the aforementioned formaldehyde concentration threshold and the second concentration threshold corresponding to the aforementioned TVOC concentration threshold. In practice, this can be achieved by first determining the first change value corresponding to the aforementioned formaldehyde concentration and the second change value corresponding to the aforementioned TVOC concentration in a preset threshold reference information set. Then, the product of the aforementioned first change value and the aforementioned formaldehyde concentration threshold is determined as the first concentration threshold. Finally, the product of the aforementioned second change value and the aforementioned TVOC concentration threshold is determined as the second concentration threshold. The preset threshold reference information in the preset threshold reference information set can characterize the correspondence between formaldehyde concentration and the first change value, or the correspondence between TVOC concentration and the second change value. For example, the preset threshold reference information could be: "Formaldehyde concentration: 0.064 mg / m³". 3 The first change value is 1.2. For example, the preset threshold reference information could be: "TVOC concentration: 0.48 mg / m³". 3 The second change value is 1.2. It should be noted that when the formaldehyde concentration is less than or equal to 0.8 times the formaldehyde concentration threshold, the air quality is considered good. Therefore, the first change value for the formaldehyde concentration can be greater than 1, thus reducing the frequency of fresh air function activation and lowering power consumption. Similarly, when the TVOC concentration is less than or equal to 0.8 times the TVOC concentration threshold, the air quality is considered good. Therefore, the second change value for the TVOC concentration can be greater than 1, thus reducing the frequency of fresh air function activation and lowering power consumption.
[0052] Step 3: In response to the formaldehyde concentration exceeding the first concentration threshold or the TVOC concentration exceeding the second threshold, the control chip is further configured to perform the following steps:
[0053] First sub-step: Control the activation of the aforementioned fresh air function. In practice, the fresh air function of the air conditioning unit can be activated through the aforementioned communication component 6 to exchange air in the room, thereby reducing formaldehyde and TVOC concentrations.
[0054] The second sub-step involves acquiring the gas concentration data at preset intervals to obtain the formaldehyde concentration change value and the TVOC concentration change value. In practice, gas concentration data can be acquired every minute, and the difference between the formaldehyde concentration and TVOC concentration included in two adjacent gas concentration data points can be used as the formaldehyde concentration change value and the TVOC concentration change value, respectively.
[0055] The third sub-step: In response to the determination that the formaldehyde concentration change is less than a first preset change value and the TVOC concentration change is less than a second preset change value, the fresh air function activates a low-power mode. The first preset change value can be a pre-set value used to determine if there is a sudden change in formaldehyde concentration. When the formaldehyde concentration change is greater than or equal to the first preset change value, it indicates a sudden change, requiring an increase in the power of the fresh air function. The second preset change value can also be a pre-set value used to determine if there is a sudden change in TVOC concentration. When the TVOC concentration change is greater than or equal to the second preset change value, it indicates a sudden change, requiring an increase in the power of the fresh air function. In practice, when the formaldehyde concentration change is less than the first preset change value and the TVOC concentration change is less than the second preset change value, the air quality is relatively stable, and the low-power mode can be activated to reduce energy consumption.
[0056] Fourth sub-step: In response to the number of target objects detected by the main radar sensor 1, the timer starts timing to obtain duration information. This duration information characterizes the length of time the target object remains within the detection area of the main radar sensor 1. In practice, the timer can record the dwell time of the target object and use this dwell time as the duration information. If the target object leaves the detection area of the main radar sensor 1, the timer stops timing. If the target object returns to the detection area within a short period (e.g., within 1 hour), the timer can continue timing. If the target object does not return to the detection area for a long period (e.g., more than 1 hour), the timer restarts timing.
[0057] Fifth sub-step: In response to the aforementioned duration exceeding the third preset duration, the buzzer emits an audible alert. The third preset duration can be a pre-set duration. For example, the third preset duration can be set to 8 hours. In practice, when the aforementioned duration exceeds the third preset duration, the buzzer can be controlled to emit an audible alert. For example, the buzzer can emit a rapid "beep, beep" sound to indicate that the target has stayed in an environment with excessively high formaldehyde or TVOC concentrations for too long and should leave the area. For example, go outdoors to breathe fresh air.
[0058] The above-described technical solution, as an inventive point of this disclosure, solves the second technical problem: "The presence of harmful gases such as formaldehyde in indoor air reduces air quality. While the fresh air function of an air conditioner can be used to improve air quality, its power is fixed, resulting in high energy consumption." Factors leading to high energy consumption often include: When a user moves into a newly renovated house, the presence of harmful gases such as formaldehyde in the indoor air reduces air quality. For example, furniture placed indoors may produce formaldehyde. The fresh air function of an air conditioner can be used to improve air quality, but its power is fixed and cannot be dynamically adjusted according to the concentration of harmful gases such as formaldehyde, leading to high energy consumption. Solving these factors can reduce energy consumption. To achieve this effect, the human-sensing sensor disclosed herein detects indoor formaldehyde and TVOC concentrations by incorporating a harmful gas sensor. It communicates with an air conditioning unit with a fresh air function. When the formaldehyde or TVOC concentration exceeds a preset concentration threshold, the air conditioner's fresh air function is activated to ventilate the room, thereby reducing the formaldehyde and TVOC concentrations and improving air quality. Simultaneously, by dynamically adjusting the preset concentration thresholds based on the formaldehyde and TVOC concentrations, the power required to activate the air conditioner's fresh air function can be automatically adjusted. When a high-power activation of the fresh air system is not required, a low-power mode can be automatically activated to reduce energy consumption.
[0059] In the process of adopting technical solutions to solve the aforementioned technical problems, the following technical problem often arises: Over time, dust accumulates on the human sensor's casing, affecting its detection accuracy and frequently leading to reduced detection precision. The conventional solution to these problems is to manually clean the sensor's casing. However, considering the low efficiency of manually cleaning the casing and taking into account the available technology at the inventor's organization, the following solution was chosen.
[0060] Optionally, the aforementioned human sensor further includes a self-cleaning component, which comprises an electrostatic adsorption component and a vibration component. The electrostatic adsorption component can be a device capable of generating static electricity, which can adsorb dust by electrostatic attraction. The vibration component can be a device capable of generating mechanical vibration; for example, it can be a vibration motor, which can shake off the dust adsorbed by the electrostatic adsorption component. The electrostatic adsorption component has an adsorption end and an embedding end. The adsorption end is the portion of the electrostatic adsorption component exposed on the outer surface of the housing, used for adsorbing dust by electrostatic attraction; for example, the adsorption end can be an interdigitated electrode. The adsorption end can be positioned away from the working area of the human sensor, minimizing its impact on the sensor's operation. It can electrostatically adsorb dust around the housing of the human sensor, concentrating the dust on the surface of the adsorption end, reducing dust coverage on the outer surface of the housing, and minimizing the impact of dust on the detection accuracy of the human sensor. For example, the outer casing has ventilation holes to improve the detection accuracy of environmental parameter sensors and sound sensors. However, because the ventilation holes are small, they are easily clogged by dust, leading to a decrease in detection accuracy. The electrostatic adsorption component can adsorb dust onto the surface of the adsorption end, reducing the possibility of dust clogging the ventilation holes. The aforementioned embedded end can be the part of the electrostatic adsorption component embedded inside the outer casing, and can communicate with the control component to start and stop the electrostatic adsorption. For example, the control component can stop the electrostatic adsorption component by cutting off the power supply to the embedded end. The adsorption end is attached to the outer surface of the outer casing, and the embedded end is embedded inside the outer casing. The aforementioned vibration component includes a vibration source and a vibration plate. The vibration source can be a component capable of generating vibration energy, such as a vibration motor, which can generate vibration energy through high-frequency vibration. The vibration plate can be an insulating thin plate, such as a wooden board, which can transmit the vibration energy generated by the vibration source and act as insulation, preventing the electrostatic adsorption component from affecting the vibration source. A thinner wooden board can also save space. One side of the aforementioned vibrating plate can be connected to the aforementioned vibration source, and the other side of the vibrating plate is connected to the aforementioned embedded end. The vibration energy generated by the vibration source can be transmitted to the embedded end through the vibrating plate. The embedded end drives the aforementioned adsorption end to vibrate, thus cleaning the dust adsorbed by the adsorption end through vibration. The aforementioned vibration assembly is communicatively connected to the aforementioned control assembly. The aforementioned embedded end is equipped with a capacitance detection element, which can be a device for detecting capacitance, used to detect the capacitance value of the adsorption end. Specifically, during the process of adsorbing dust, as dust accumulates, the capacitance of the adsorption end changes. The capacitance detection element can be connected to the positive and negative terminals of the adsorption end to measure the capacitance value. For example, the capacitance detection element can be connected to the positive and negative terminals of the interdigitated electrodes to measure the capacitance value. The aforementioned capacitance detection element is communicatively connected to the aforementioned control assembly.The aforementioned control chip is configured to execute a self-cleaning function in response to a capacitance value greater than or equal to a preset value. This preset value can be a pre-defined capacitance value, serving as a boundary for the cleaning function. For example, the preset value could be the capacitance value of the electrostatic adsorption component after adsorbing a certain amount of dust, which can be determined through laboratory measurements and is not specifically limited here. In practice, the self-cleaning function can be executed when the capacitance value is greater than or equal to the preset value. Specifically, firstly, the power supply to the electrostatic adsorption component can be disconnected to reduce the adsorption effect of the adsorption end on dust. Then, the vibration component is activated, and the vibration energy generated by the vibration source is transmitted to the embedded end through the vibration plate. The embedded end drives the adsorption end to vibrate, cleaning the dust adsorbed by the adsorption end through vibration. Next, the electrostatic adsorption component is restarted, and the capacitance value is measured using a capacitance detection element. Finally, the capacitance value is measured again. If the capacitance value is still greater than or equal to the preset value, the above steps are repeated; if the capacitance value is less than the preset value, the self-cleaning function is stopped.
[0061] The above-described technical solution, as an inventive point of this disclosure, solves the technical problem of "dust accumulation on the human sensor after prolonged use, which affects the sensor's detection and reduces its accuracy." Factors leading to reduced detection accuracy of the human sensor include: dust accumulation on the sensor's casing after prolonged use, affecting its detection and reducing its accuracy. Solving these factors improves the sensor's detection accuracy. To achieve this, the human sensor of this disclosure incorporates a self-cleaning component. The electrostatic adsorption component generates static electricity to attract dust, concentrating it on its surface. A vibration component then shakes off the dust, cleaning it. The self-cleaning function is automatically executed via a capacitive sensing element, ensuring timely dust removal and reducing the impact of dust on the sensor's accuracy.
[0062] The above embodiments of this disclosure have the following beneficial effects: The human sensor of some embodiments of this disclosure can reduce the false detection rate and improve the user experience. Specifically, the reason for the high false detection rate of human sensors and the poor user experience is that a single type of sensor may misidentify the presence of other objects in the detection area, leading to a high false detection rate. Air conditioning then adjusts based on these incorrect identifications, resulting in a poor user experience. Based on this, some embodiments of this disclosure provide a human sensor integrating multiple sensor functions. This human sensor includes: a detection component, a communication component, and a control component. The detection component includes a radar sensor, an environmental parameter sensor, and a sound sensor. The radar sensor includes a main radar sensor and an auxiliary radar sensor. The main radar sensor is configured to detect the quantity of target objects within a target area, and the auxiliary radar sensor is configured to detect the activity level of the target objects. The environmental parameter sensor is configured to detect environmental data in the target area, and the sound sensor is configured to detect sound data in the target area. The control component includes a control chip. Both the detection component and the communication component are communicatively connected to the control component. By integrating multiple sensors and using collaborative detection among them, the system achieves the effects of reducing false detection rates, enabling intelligent control of air conditioning, and improving user experience.
[0063] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.
Claims
1. A human-sensing sensor integrating multiple sensor functions, characterized in that, The human sensor includes: a detection component, a communication component, and a control component; The detection components include a radar sensor, an environmental parameter sensor, and a sound sensor; The radar sensor includes a main radar sensor and an auxiliary radar sensor. The main radar sensor is configured to detect the quantity of target objects within the target area, and the auxiliary radar sensor is configured to detect the activity level of the target objects. The environmental parameter sensor is configured to detect environmental data of the target area, and the sound sensor is configured to detect sound data of the target area; The control component includes a control chip; Both the detection component and the communication component are communicatively connected to the control component.
2. The human sensing sensor integrating multiple sensor functions according to claim 1, characterized in that, The human sensor also includes a mounting assembly, which includes a housing, a mounting base, and a clamping assembly. The detection component, the communication component, and the control component are installed inside the housing; The outer shell is embedded in the mounting base, the mounting base is provided with a connecting plate, and the clamping assembly is detachably connected to the connecting plate.
3. The human sensing sensor integrating multiple sensor functions according to claim 2, characterized in that, The outer casing has a positioning pin on its side, and the mounting base has a positioning hole. The positioning pin is configured to be able to be inserted into the positioning hole.
4. The human sensing sensor integrating multiple sensor functions according to claim 3, characterized in that, The front of the outer casing is provided with a radar area, an infrared area, an environmental area and an acoustic area; The back of the housing has a wire hole.
5. The human sensing sensor integrating multiple sensor functions according to claim 1, characterized in that, The auxiliary radar sensor is further configured to: In response to detecting the activity level of the target object, an activity signal is generated every first preset time interval; In response to the absence of detected activity in the target object, an inactivity signal is generated every first preset time interval.
6. The human sensing sensor integrating multiple sensor functions according to claim 5, characterized in that, The communication component is connected to an external device, wherein the external device includes at least one of the following: a mobile terminal and an air conditioning unit.
7. The human sensing sensor integrating multiple sensor functions according to claim 6, characterized in that, The mobile terminal is configured to set the detection configuration information of the human sensor, wherein the detection configuration information includes at least one of the following: sensitivity, detection angle, and detection range.
8. The human sensing sensor integrating multiple sensor functions according to claim 6, characterized in that, The sound data includes sound intensity and duration; The control chip is configured to perform the following steps: In response to the number of target objects detected by the main radar sensor, the number of activity signals within a second preset time period is obtained to obtain a set of activity signal counts, wherein the duration of the second preset time period is longer than the first preset time period; The activity level corresponding to the set of activity signal frequency is determined based on a preset set of level information. The sound data within the second preset time period is acquired synchronously to obtain the sound intensity and duration; Based on the sound intensity and the duration, the sound data is divided into levels to obtain sound levels; Simultaneously acquire the environmental data within the second preset time period to obtain the environmental data; Based on the quantity information, the activity level, the sound level, and the environmental data, an activity type is generated; Based on the activity type, the adjustment information for the air conditioning equipment is generated.