An oil fume extractor control system based on object sensing and temperature sensing

Abstract

The utility model discloses a kind of range hood control systems based on object feeling and temperature sensing, including smoke machine main body, and thermopile infrared array sensor module for collecting temperature signal of stove is arranged on smoke machine main body, laser ranging sensor module for detecting inductive human body, for converting temperature signal that thermopile infrared array sensor module gathers into air volume control signal and the MCU processing module for converting human body inductive signal that laser ranging sensor module detects into light opening control signal when motor works, for converting air volume control signal into air volume drive signal and converting light opening control signal into light opening drive signal air volume and light control module, for adjusting motor speed according to air volume drive signal motor drive module, and for controlling lighting lamp to open lighting lamp drive module according to light opening drive signal, improve stove temperature detection accuracy and human body inductive accuracy.

Description

[Technical Field]

[0001] This utility model relates to a range hood control system based on physical and temperature sensing. [Background Technology]

[0002] Among existing range hoods, some have the function of adjusting the fan volume by sensing the temperature of the cooktop, which is generally achieved by installing a temperature sensing component on the range hood. Some of these range hoods only have a single temperature sensor, which leads to inaccurate temperature detection. Other range hoods have multiple temperature sensors in different locations on the range hood, which results in complex production and installation and high costs. At the same time, some range hoods have the function of controlling the operation of the range hood by sensing the presence of a person, which is generally achieved by installing an infrared sensing component on the range hood. However, this is subject to problems such as inaccurate human body sensing and susceptibility to false triggering by the cooktop. [Utility Model Content]

[0003] This invention overcomes the shortcomings of the prior art and provides a range hood control system based on physical and temperature sensing.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A range hood control system based on physical and temperature sensing, characterized in that: it includes a range hood body; the range hood body is equipped with...

[0006] The thermopile infrared array sensor module is used to collect the temperature signal of the stove. The thermopile infrared array sensor module includes a thermopile infrared array detection chip U4, which is composed of multiple independent thermopile infrared array sensors arranged in an array.

[0007] Laser rangefinder sensor module, used to detect and sense the human body;

[0008] The MCU processing module is connected to the thermopile infrared array sensor module and the laser rangefinder sensor module respectively. It converts the temperature signal collected by the thermopile infrared array sensor module into an air volume control signal and converts the human body induction signal detected by the laser rangefinder sensor module into a light-on control signal when the motor is working.

[0009] The air volume and lighting control module is connected to the MCU processing module and is used to convert the air volume control signal into an air volume drive signal and the lighting turn-on control signal into a lighting turn-on drive signal.

[0010] The motor drive module, connected to the air volume and lighting control module and the motor, is used to adjust the motor speed according to the air volume drive signal.

[0011] The lighting driver module, connected to the air volume and lighting control module and the lighting lamp, is used to control the lighting lamp to turn on according to the lighting turn-on drive signal.

[0012] The range hood control system based on physical and temperature sensing, as described above, is characterized in that: the thermopile infrared array sensor module, the laser rangefinder sensor module, and the lighting lamp are respectively installed on the bottom surface of the main body of the range hood.

[0013] The range hood control system based on physical and temperature sensing, as described above, is characterized in that: the thermopile infrared array sensor module and the laser rangefinder sensor module are located at the middle of the bottom surface of the range hood body, the detection end of the thermopile infrared array sensor module is set facing the stove below, and the detection end of the laser rangefinder sensor module is set tilted outward.

[0014] The range hood control system based on physical and temperature sensing, as described above, is characterized in that: the thermopile infrared array detection chip U4 is composed of 64 independent thermopile infrared array sensors arranged in an 8×8 array.

[0015] The range hood control system based on physical and temperature sensing, as described above, is characterized in that: pin 1 of the thermopile infrared array detection chip U4 is connected to one end of capacitor C15, one end of capacitor C8, and a 3V3 power supply, respectively; the other ends of capacitor C15 and C3 are grounded; pins 2-4, 6, and 12 of the thermopile infrared array detection chip U4 are grounded; pin 11 of the thermopile infrared array detection chip U4 is connected to one end of capacitor C1 and a 3V3 power supply, respectively; the other end of capacitor C1 is grounded; pin 5 of the thermopile infrared array detection chip U4 is connected to the MCU processing module, one end of resistor R18, and one end of capacitor C2, respectively; the other end of resistor R18 is connected to a 3V3 power supply, and the other end of capacitor C2 is grounded; pin 7 of the thermopile infrared array detection chip U4 is connected to the MCU processing module, one end of resistor R17, and one end of capacitor C3, respectively; the other end of resistor R17 is connected to a 3V3 power supply, and the other end of capacitor C3 is grounded; pins 9-10 of the thermopile infrared array detection chip U4 are connected to the MCU processing module.

[0016] The range hood control system based on physical and temperature sensing, as described above, is characterized in that: the laser ranging sensor module includes a laser ranging sensor chip U3; pins 2-3 of the laser ranging sensor chip U3 are respectively connected to the MCU processing module; pin 4 of the laser ranging sensor chip U3 is respectively connected to the MCU processing module and one end of resistor R26; the other end of resistor R26 is connected to the 3V3 power supply; pin 5 of the laser ranging sensor chip U3 is respectively connected to one end of resistor R20 and one end of resistor R25; the other end of resistor R20 is connected to the 3V3 power supply; the other end of resistor R25 is grounded; pin 9 of the laser ranging sensor chip U3 is respectively connected to pin 13 of the laser ranging sensor chip U3, the 3V3 power supply, and one end of capacitor C17; the other end of capacitor C17 is grounded; pin 10 of the laser ranging sensor chip U3 is grounded sequentially through capacitor C19 and resistor R27; pin 12 of the laser ranging sensor chip U3 is grounded through capacitor C21; and pin 6 of the laser ranging sensor chip U3 is grounded.

[0017] The range hood control system based on physical and temperature sensing, as described above, is characterized in that: the MCU processing module includes a control chip U6; pin 3 of the control chip U6 is connected to pin 4, one end of capacitor C25, and one end of inductor L2; the other end of inductor L2 is connected to one end of capacitor C24, one end of capacitor C23, one end of capacitor C22, and a 3V3 power supply; the other ends of capacitors C24, C23, and C22 are grounded; pin 37 of the control chip U6 is connected to pin 19, one end of capacitor C27, one end of capacitor C26, and a 3V3 power supply; the other ends of capacitors C27 and C26 are grounded. Each pin is grounded. Pin 26 of control chip U6 is grounded through capacitor C28. Pin 1 of control chip U6 is connected to pins 43 and 46, one end of capacitor C31, one end of capacitor C30, one end of capacitor C29, and the 3V3 power supply. The other ends of capacitors C31, C30, and C29 are grounded. Pins 8 and 5 of control chip U6 are connected to the laser ranging sensor module. Pin 10 of control chip U6 is connected to the thermopile infrared array sensor module. Pin 2 of control chip U6 is connected to one end of capacitor C35 and one end of capacitor C32. The other end of capacitor C32 is connected to one end of inductor L1 and the capacitor... One end of C34 and one end of resistor R36 are connected. The other end of resistor R36 is connected to one end of capacitor C33 and pin 1 of antenna ANT1. The other ends of capacitor C35, inductor L1, capacitor C34, capacitor C33, and pin 2 of antenna ANT1 are grounded. Pin 21 of control chip U6 is connected to the 3V3 power supply through resistor R42. Pin 48 of control chip U6 is connected to one end of capacitor C36, one end of resistor R37, and one end of capacitor C37. The other end of capacitor C37 is grounded. Pin 47 of control chip U6 is connected to the other end of capacitor C36 and the other end of resistor R37. Pin 9 is connected to one end of resistor R38 and one end of capacitor C38 respectively. The other end of resistor R38 is connected to the 3V3 power supply, and the other end of capacitor C38 is grounded. Pin 23 of control chip U6 is connected to the 3V3 power supply through resistor R39. Pin 22 of control chip U6 is connected to the 3V3 power supply through resistor R40. Pin 24 of control chip U6 is connected to the laser rangefinder sensor module, the thermopile infrared array sensor module, and the airflow and lighting control module respectively. Pin 15 of control chip U6 is connected to the laser rangefinder sensor module, the thermopile infrared array sensor module, and the airflow and lighting control module respectively. Pin 49 of control chip U6 is grounded.

[0018] The range hood control system based on physical and temperature sensing, as described above, is characterized in that: the air volume and lighting control module includes a control chip U1, pins 2-3 of the control chip U1 are respectively connected to the lighting drive module, pin 4 of the control chip U1 is respectively connected to one end of capacitor C4, one end of capacitor C3, and a 3V3 power supply, the other ends of capacitor C4 and capacitor C3 are respectively grounded, pin 5 of the control chip U1 is grounded, pin 11 of the control chip U1 is respectively connected to one end of capacitor C6 and a motor drive module, the other end of capacitor C6 is grounded, and pins 16-17 of the control chip U1 are respectively connected to the MCU processing module.

[0019] The range hood control system based on physical and temperature sensing, as described above, is characterized in that: the motor drive module includes an optocoupler U14 and a silicon controlled rectifier Q12; pin 1 of the optocoupler U14 is connected to the airflow and lighting control module; pin 2 of the optocoupler U14 is grounded; pin 4 of the optocoupler U14 is connected to one end of resistor R42 and pin 3 of silicon controlled rectifier Q12; the other end of resistor R42 is connected to pin 1 of silicon controlled rectifier Q12 and the motor; and pin 2 of silicon controlled rectifier Q12 is connected to pin 6 of optocoupler U14 and the motor.

[0020] The above-described range hood control system based on physical and temperature sensing is characterized in that: the lighting drive module includes an optocoupler U11, an optocoupler U12, a silicon controlled rectifier (SCR) Q9, and a SCR Q10. Pin 1 of optocoupler U11 is connected to the airflow and lighting control module through resistor R31; pin 2 of optocoupler U11 is grounded; pin 4 of optocoupler U11 is connected to one end of resistor R33 and pin 3 of SCR Q9; the other end of resistor R33 is connected to pin 1 of SCR Q9 and the lighting control module. For the lamp connection, pin 2 of the SCR rectifier Q9 is connected to pin 6 of the optocoupler U11 and the mains power wire, respectively. Pin 1 of the optocoupler U12 is connected to the air volume and lighting control module through resistor R34. Pin 2 of the optocoupler U12 is grounded. Pin 4 of the optocoupler U12 is connected to one end of resistor R36 and pin 3 of the SCR rectifier Q10, respectively. The other end of resistor R36 is connected to pin 1 of the SCR rectifier Q10 and the lighting lamp, respectively. Pin 2 of the SCR rectifier Q10 is connected to pin 6 of the optocoupler U12 and the mains power wire, respectively.

[0021] The beneficial effects of this utility model are:

[0022] This invention incorporates a thermopile infrared array sensor module on the main body of the range hood to sense the temperature of the cooktop. The thermopile infrared array detection chip U4 of this module consists of multiple independent thermopile infrared array sensors arranged in an array. By simply placing it in one location on the main body of the range hood, it can perform large-area, all-around temperature detection of the cooktop, avoiding any missed detection points. Furthermore, multiple thermopile infrared array sensors significantly improve detection accuracy, thereby enhancing the accuracy of airflow adjustment. Additionally, a laser ranging sensor module is also installed on the main body of the range hood. This module detects the approach of a person using laser detection, improving the accuracy of human body detection and preventing false triggering of the cooktop. Moreover, the laser ranging sensor module only operates when the fan motor is running, detecting whether a person is approaching and thus controlling the light switch, preventing false triggering caused by a person passing by. [Image Description]

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the present invention;

[0025] Figure 3 This is the circuit diagram of the laser ranging sensor module of this utility model;

[0026] Figure 4 This is the circuit diagram of the thermopile infrared array sensor module of this utility model;

[0027] Figure 5 This is the circuit diagram of the MCU processing module of this utility model;

[0028] Figure 6 This is the circuit diagram of the air volume and lighting control module of this utility model;

[0029] Figure 7 This is the circuit diagram of the lighting driver module of this utility model;

[0030] Figure 8 This is the circuit diagram of the motor drive module of this utility model. [Detailed Implementation]

[0031] The technical solutions in the embodiments of this utility model will now be clearly and completely described in conjunction with the accompanying drawings.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this utility model are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly. Furthermore, descriptions involving "preferred," "second-best," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "preferred" or "second-best" may explicitly or implicitly include at least one of those features.

[0033] like Figure 1-2 As shown, a range hood control system based on physical and temperature sensing includes a range hood body 1; the range hood body 1 is equipped with...

[0034] The thermopile infrared array sensor module 2 is used to collect the temperature signal of the stove. The thermopile infrared array sensor module 2 includes a thermopile infrared array detection chip U4, which is composed of multiple independent thermopile infrared array sensors arranged in an array.

[0035] Laser rangefinder sensor module 3 is used to detect and sense the human body;

[0036] The MCU processing module 4 is connected to the thermopile infrared array sensor module 2 and the laser range sensor module 3 respectively. It converts the temperature signal collected by the thermopile infrared array sensor module 2 into an air volume control signal and converts the human body sensing signal detected by the laser range sensor module 3 into a light-on control signal when the motor 9 is working.

[0037] The air volume and lighting control module 5 is connected to the MCU processing module 4 and is used to convert the air volume control signal into an air volume drive signal and the lighting turn-on control signal into a lighting turn-on drive signal.

[0038] The motor drive module 6 is connected to the air volume and lighting control module 5 and the motor 9, and is used to adjust the speed of the motor 9 according to the air volume drive signal.

[0039] The lighting drive module 7 is connected to the air volume and lighting control module 5 and the lighting lamp 8, and is used to control the lighting lamp 8 to turn on according to the lighting turn-on drive signal.

[0040] During operation, the thermopile infrared array sensor module 2 detects the temperature of the cooktop below and sends the collected temperature signal to the MCU processing module 4. The MCU processing module 4 converts the temperature signal collected by the thermopile infrared array sensor module 2 into an airflow control signal and sends it to the airflow and lighting control module 5. The airflow and lighting control module 5 converts the airflow control signal into an airflow drive signal and sends it to the motor drive module 6. The motor drive module 6 adjusts the speed of the motor 9 according to the airflow drive signal, thereby dynamically adjusting the airflow of the range hood in real time. The thermopile infrared array sensor module uses an AMG8833 thermopile infrared array detection chip U4, which consists of 64 independent thermopile infrared array sensors arranged in an 8×8 array. It only needs to be installed in one location on the main body of the range hood to perform large-area, all-around temperature detection of the cooktop, facilitating installation and avoiding missed detection points. Furthermore, multiple thermopile infrared array sensors greatly improve detection accuracy, thereby improving the accuracy of airflow adjustment.

[0041] Simultaneously, the laser ranging sensor module 3 only enters its working state to detect the approach of a human body when the range hood motor 9 is operating. Upon detecting a human body, it sends a human body detection signal to the MCU processing module 4. The MCU processing module 4 converts the detected human body detection signal into a light-on control signal and sends it to the airflow and lighting control module 5. The airflow and lighting control module 5 converts the light-on control signal into a light-on drive signal and sends it to the lighting drive module 7. The lighting drive module 7 controls the lighting 8 to turn on based on the light-on drive signal. When a human body leaves the range hood, the laser ranging sensor module 3 does not generate a human body detection signal if no human body is detected, and the lighting 8 turns off. The laser ranging sensor module 3 uses a VL53L0x laser ranging chip U3, which is a laser ranging sensor employing Time-of-Flight (ToF) technology. By using Time-of-Flight (ToF) technology to detect the approach of a human body, detection accuracy is improved, avoiding false triggering by the stove's infrared sensors. Furthermore, the laser ranging sensor module only operates when the motor is running to detect the human body and control the light switch, preventing false triggering caused by a human passing by.

[0042] like Figure 1 As shown, the thermopile infrared array sensor module 2, the laser rangefinder sensor module 3, and the lighting lamp 8 are respectively installed on the bottom surface of the range hood body 1, which serves to conceal them and improve the aesthetic appearance of the range hood. At the same time, the thermopile infrared array sensor module 2 is installed on the bottom surface of the range hood body 1 to improve the accuracy of temperature sensing detection of the stove below. The thermopile infrared array sensor module 2 and the laser rangefinder sensor module 3 are located in the middle of the bottom surface of the range hood body 1. The detection end of the thermopile infrared array sensor module 2 is set towards the stove below, and the detection end of the laser rangefinder sensor module 3 is set outward, which further improves the accuracy of stove temperature detection and human body sensing detection.

[0043] like Figure 2 and Figure 3 As shown, after the thermopile infrared array detection chip U4 of the thermopile infrared array sensor module 2 collects the stove temperature signal, it sends the collected stove temperature signal to the MCU processing module 4 through pins 5 and 8.

[0044] like Figure 2 and Figure 4 As shown, after the laser ranging sensor chip U3 of the laser ranging sensor module 3 detects the human body signal, it sends it to the MCU processing module 4 through pin 4.

[0045] like Figure 2 and Figure 5 As shown, the antenna ANT1 connected to pin 2 of the control chip U6 of the MCU processing module 4 can communicate with external smart devices, allowing users to send control signals to the MCU processing module 4 through external smart devices. After receiving the temperature signal collected by the thermopile infrared array sensor module 2 at pin 10 of the control chip U6, the temperature signal is converted into an airflow control signal and sent to the airflow and lighting control module 5 through pins 24 and 15. Similarly, after receiving the human body sensing signal detected by the laser ranging sensor module 3 at pins 5 and 8 of the control chip U6, the human body sensing signal is converted into a light-on control signal and sent to the airflow and lighting control module 5 through pins 24 and 15.

[0046] like Figure 2 and Figure 6 As shown, after the air volume and lighting control module 5 receives the air volume control signal sent by the MCU processing module 4 at pins 16-17 of the control chip U1, it converts the air volume control signal into an air volume drive signal and sends it to the lighting drive module 7 through pins 2-3. Similarly, after the air volume and lighting control module 5 receives the light-on control signal sent by the MCU processing module 4 at pins 16-17 of the control chip U1, it converts the light-on control signal into a light-on drive signal and sends it to the motor drive module 6 through pin 11.

[0047] like Figure 2 and Figure 7 As shown, after pin 1 of optocoupler U11 and pin 1 of optocoupler U12 in lighting drive module 7 receive the light-on control signal sent by airflow and lighting control module 5, optocouplers U11 and U12 work respectively, and the AC power side of optocouplers U11 and U12 is turned on, thereby connecting the external power supply of lighting lamp 8. At the same time, thyristor rectifiers Q9 and Q10 are turned on respectively, so that the lighting lamps 8 on both sides are powered on for illumination.

[0048] like Figure 2 and Figure 8 As shown, after pin 1 of the optocoupler U14 of the motor drive module 6 receives the air volume drive signal sent by the air volume and lighting control module 5, the optocoupler U14 works, connects the external power supply of the motor 9, and adjusts the output power of the thyristor rectifier Q12 to adjust the speed of the motor 9, thereby realizing real-time dynamic adjustment of the range hood air volume.

[0049] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A range hood control system based on physical and temperature sensing, characterized in that: Includes a range hood body (1); the range hood body (1) is equipped with... The thermopile infrared array sensor module (2) is used to collect the temperature signal of the stove. The thermopile infrared array sensor module (2) includes a thermopile infrared array detection chip U4, which is composed of multiple independent and arrayed thermopile infrared array sensors. Laser ranging sensor module (3) is used to detect and sense the human body; The MCU processing module (4) is connected to the thermopile infrared array sensor module (2) and the laser ranging sensor module (3) respectively. It converts the temperature signal collected by the thermopile infrared array sensor module (2) into an air volume control signal and converts the human body sensing signal detected by the laser ranging sensor module (3) into a light-on control signal when the motor (9) is working. The air volume and lighting control module (5) is connected to the MCU processing module (4) and is used to convert the air volume control signal into an air volume drive signal and the lighting turn-on control signal into a lighting turn-on drive signal. The motor drive module (6) is connected to the air volume and lighting control module (5) and the motor (9) and is used to adjust the speed of the motor (9) according to the air volume drive signal. The lighting drive module (7) is connected to the air volume and lighting control module (5) and the lighting lamp (8) and is used to control the lighting lamp (8) to turn on according to the lighting turn-on drive signal.

2. The range hood control system based on physical and temperature sensing according to claim 1, characterized in that: The thermopile infrared array sensor module (2), the laser ranging sensor module (3) and the lighting lamp (8) are respectively set on the bottom surface of the main body (1) of the smoke machine.

3. The range hood control system based on physical and temperature sensing according to claim 2, characterized in that: The thermopile infrared array sensor module (2) and the laser ranging sensor module (3) are located in the middle of the bottom surface of the main body (1) of the range hood. The detection end of the thermopile infrared array sensor module (2) is set towards the stove on the lower side, and the detection end of the laser ranging sensor module (3) is set to tilt outward.

4. The range hood control system based on physical and temperature sensing according to claim 1, characterized in that: The thermopile infrared array detection chip U4 consists of 64 independent thermopile infrared array sensors arranged in an 8×8 array.

5. A range hood control system based on physical and temperature sensing according to claim 4, characterized in that: Pin 1 of the thermopile infrared array detection chip U4 is connected to one end of capacitor C15, one end of capacitor C8, and power supply 3V3 respectively. The other end of capacitor C15 and the other end of capacitor C3 are grounded respectively. Pins 2-4, 6 and 12 of the thermopile infrared array detection chip U4 are grounded respectively. Pin 11 of the thermopile infrared array detection chip U4 is connected to one end of capacitor C1 and power supply 3V3 respectively. The other end of capacitor C1 is grounded. Pin 5 of the thermopile infrared array detection chip U4 is connected to the MCU processing module (4), one end of resistor R18 and one end of capacitor C2 respectively. The other end of resistor R18 is connected to power supply 3V3 and the other end of capacitor C2 is grounded. Pin 7 of the thermopile infrared array detection chip U4 is connected to the MCU processing module (4), one end of resistor R17 and one end of capacitor C3 respectively. The other end of resistor R17 is connected to power supply 3V3 and the other end of capacitor C3 is grounded. Pins 9-10 of the thermopile infrared array detection chip U4 are connected to the MCU processing module (4) respectively.

6. The range hood control system based on physical and temperature sensing according to claim 1, characterized in that: The laser ranging sensor module (3) includes a laser ranging sensor chip U3. Pins 2-3 of the laser ranging sensor chip U3 are connected to the MCU processing module (4) respectively. Pin 4 of the laser ranging sensor chip U3 is connected to the MCU processing module (4) and one end of resistor R26 respectively. The other end of resistor R26 is connected to power supply 3V3. Pin 5 of the laser ranging sensor chip U3 is connected to one end of resistor R20 and one end of resistor R25 respectively. The other end of resistor R20 is connected to power supply 3V3. The other end of resistor R25 is grounded. Pin 9 of the laser ranging sensor chip U3 is connected to pin 13 of the laser ranging sensor chip U3, power supply 3V3, and one end of capacitor C17 respectively. The other end of capacitor C17 is grounded. Pin 10 of the laser ranging sensor chip U3 is grounded through capacitor C19 and resistor R27 in sequence. Pin 12 of the laser ranging sensor chip U3 is grounded through capacitor C21. Pin 6 of the laser ranging sensor chip U3 is grounded.

7. A range hood control system based on physical and temperature sensing according to claim 1, characterized in that: The MCU processing module (4) includes a control chip U6. Pin 3 of the control chip U6 is connected to pin 4, one end of capacitor C25, and one end of inductor L2. The other end of inductor L2 is connected to one end of capacitor C24, one end of capacitor C23, one end of capacitor C22, and power supply 3V3. The other ends of capacitors C24, C23, and C22 are grounded. Pin 37 of the control chip U6 is connected to pin 19, one end of capacitor C27, one end of capacitor C26, and power supply 3V3. The other ends of capacitors C27 and C26 are grounded. Pin 26 of the control chip U6 is grounded through capacitor C28. Pin 1 of the control chip U6 is connected to pins 43 and 46, one end of capacitor C31, one end of capacitor C30, one end of capacitor C29, and the 3V3 power supply. The other ends of capacitors C31, C30, and C29 are grounded. Pins 8 and 5 of the control chip U6 are connected to the laser ranging sensor module (3). Pin 10 of the control chip U6 is connected to the thermopile infrared array sensor module (2). Pin 2 of the control chip U6 is connected to one end of capacitor C35 and one end of capacitor C32. The other end of capacitor C32 is connected to one end of inductor L1, one end of capacitor C34, and one end of resistor R36. The other end of pin 36 is connected to one end of capacitor C33 and pin 1 of antenna ANT1. The other ends of capacitor C35, inductor L1, capacitor C34, capacitor C33, and pin 2 of antenna ANT1 are grounded. Pin 21 of control chip U6 is connected to the 3V3 power supply through resistor R42. Pin 48 of control chip U6 is connected to one end of capacitor C36, one end of resistor R37, and one end of capacitor C37. The other end of capacitor C37 is grounded. Pin 47 of control chip U6 is connected to the other end of capacitor C36 and the other end of resistor R37. Pin 9 of control chip U6 is connected to one end of resistor R38 and one end of capacitor C38. One end is connected, the other end of resistor R38 is connected to power supply 3V3, the other end of capacitor C38 is grounded, pin 23 of control chip U6 is connected to power supply 3V3 through resistor R39, pin 22 of control chip U6 is connected to power supply 3V3 through resistor R40, pin 24 of control chip U6 is connected to laser ranging sensor module (3), thermopile infrared array sensor module (2), air volume and lighting control module (5) respectively, pin 15 of control chip U6 is connected to laser ranging sensor module (3), thermopile infrared array sensor module (2), air volume and lighting control module (5) respectively, and pin 49 of control chip U6 is grounded.

8. A range hood control system based on physical and temperature sensing according to claim 1, characterized in that: The air volume and lighting control module (5) includes a control chip U1. Pins 2-3 of the control chip U1 are connected to the lighting drive module (7) respectively. Pin 4 of the control chip U1 is connected to one end of capacitor C4, one end of capacitor C3 and power supply 3V3 respectively. The other end of capacitor C4 and the other end of capacitor C3 are grounded respectively. Pin 5 of the control chip U1 is grounded. Pin 11 of the control chip U1 is connected to one end of capacitor C6 and motor drive module (6) respectively. The other end of capacitor C6 is grounded. Pins 16-17 of the control chip U1 are connected to the MCU processing module (4) respectively.

9. A range hood control system based on physical and temperature sensing according to claim 1, characterized in that: The motor drive module (6) includes an optocoupler U14 and a thyristor rectifier Q12. Pin 1 of the optocoupler U14 is connected to the air volume and lighting control module (5). Pin 2 of the optocoupler U14 is grounded. Pin 4 of the optocoupler U14 is connected to one end of the resistor R42 and pin 3 of the thyristor rectifier Q12. The other end of the resistor R42 is connected to pin 1 of the thyristor rectifier Q12 and the motor (9). Pin 2 of the thyristor rectifier Q12 is connected to pin 6 of the optocoupler U14 and the motor (9).

10. A range hood control system based on physical and temperature sensing according to claim 1, characterized in that: The lighting driver module (7) includes an optocoupler U11, an optocoupler U12, a thyristor rectifier Q9, and a thyristor rectifier Q10. Pin 1 of optocoupler U11 is connected to the airflow and lighting control module (5) through resistor R31. Pin 2 of optocoupler U11 is grounded. Pin 4 of optocoupler U11 is connected to one end of resistor R33 and pin 3 of thyristor rectifier Q9, respectively. The other end of resistor R33 is connected to pin 1 of thyristor rectifier Q9 and the lighting lamp (8), respectively. Pin 2 is connected to pin 6 of optocoupler U11 and the mains power wire respectively. Pin 1 of optocoupler U12 is connected to the air volume and lighting control module (5) through resistor R34. Pin 2 of optocoupler U12 is grounded. Pin 4 of optocoupler U12 is connected to one end of resistor R36 and pin 3 of thyristor rectifier Q10 respectively. The other end of resistor R36 is connected to pin 1 of thyristor rectifier Q10 and the lighting lamp (8) respectively. Pin 2 of thyristor rectifier Q10 is connected to pin 6 of optocoupler U12 and the mains power wire respectively.

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