Off-line multi-mode sensor power consumption control method, sensor assembly and device

Abstract

The invention discloses an off-line multi-mode sensor power consumption control method and a control device used for a sensor assembly and equipment, the sensor assembly comprises a mounting shell, an energy storage device and a signal collector, and the mounting shell is arranged in an inner cavity of a range hood of the equipment; the energy accumulator and the signal collector are respectively arranged in the mounting shell and are respectively and electrically connected with the control device; the method comprises the following steps: judging whether the range hood works or not based on whether the signal collector collects negative pressure airflow information or not; switching the power supply mode of the signal collector based on the working state of the range hood; when it is judged that the range hood is in the working state, the energy storage device and the signal collector are switched to be powered through a power source of the range hood; when it is judged that the range hood is shut down, the signal collector is switched to be powered through the energy storage device. Standby energy consumption can be reduced, and the cruising ability of the sensor assembly during the stop period of the range hood is remarkably prolonged.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliances, and more specifically, to an offline multimodal sensor power consumption control method, sensor assembly, and device. Background Technology

[0002] Range hoods are essential appliances in people's kitchens, used to remove cooking fumes. Early range hoods focused on high suction power, increasing fan power to improve smoke extraction. However, with the widespread adoption of range hoods, improved living standards, changing awareness, and continuous technological advancements, people's needs for range hoods have evolved, with intelligent range hoods becoming increasingly popular. In related technologies, the sensors in range hoods are powered by the hood's power supply; when the range hood stops operating, the sensors cease detection, making continuous monitoring impossible. Summary of the Invention

[0003] The purpose of this invention is to provide an offline multimodal sensor power consumption control method, sensor component and device, which can achieve continuous detection and reduce standby power consumption.

[0004] The embodiments of the present invention are implemented as follows: In a first aspect, this application provides an offline multimodal sensor power consumption control method for a control device of a sensor assembly and a device. The sensor assembly includes: a mounting housing, an energy storage device, and a signal acquisition device. The mounting housing is disposed within the inner cavity of the range hood of the device. The energy storage device and the signal acquisition device are respectively disposed within the mounting housing and electrically connected to the control device. The method includes: Based on whether the signal collector has collected negative pressure airflow information, it is determined whether the range hood is working; The power supply mode of the signal acquisition device is switched based on the working status of the range hood; Specifically, when it is determined that the range hood is in working condition, the energy storage device and the signal acquisition device switch to power supply through the power supply of the range hood; when it is determined that the range hood is stopped, the signal acquisition device switches to power supply through the energy storage device.

[0005] In a possible implementation, the working state of the air damper inside the mounting housing is also controlled based on the working state of the range hood. Specifically, when no negative pressure airflow information is collected, the air damper is controlled to work intermittently; when the negative pressure airflow information is collected, the air damper is controlled to stop working. In a possible implementation, switching the power supply mode of the signal acquisition device based on the operating state of the range hood includes: When the air controller is working, it controls the first, second, and third sensors of the signal acquisition unit to work, and the fourth and fifth sensors to be powered off. The first sensor is a methane or propane gas sensor, the second sensor is a carbon monoxide gas sensor, the third sensor is an oil fume sensor, the fourth sensor is an airflow sensor, and the fifth sensor is a temperature sensor. In a possible implementation, when the air duct is working, the working mode of the first sensor, the second sensor, and the third sensor is such that the first sensor works continuously, while the second sensor and the three sensors work alternately. In a possible implementation, when the air damper stops working, the fourth sensor and the fifth sensor are energized to detect whether negative pressure airflow is generated and to determine the working status of the range hood. In a possible implementation, when it is determined that the hydraulic press is in a working state, the first sensor, the second sensor, and the third sensor are controlled to work simultaneously.

[0006] In a possible implementation, when it is determined that the hydraulic press is in a stopped state, the first sensor, the second sensor, and the third sensor are controlled to stop working.

[0007] Secondly, this application also provides a sensor assembly, including: a mounting housing, an energy storage device, and a signal acquisition device, wherein the mounting housing is disposed in the inner cavity of the range hood of the device; the energy storage device and the signal acquisition device are respectively disposed within the mounting housing; Based on whether the signal collector has collected negative pressure airflow information, it is determined whether the range hood is working; The power supply mode of the signal acquisition device is switched based on the working status of the range hood; Specifically, when it is determined that the range hood is in working condition, the energy storage device and the signal acquisition device switch to power supply through the power supply of the range hood; when it is determined that the range hood is stopped, the signal acquisition device switches to power supply through the energy storage device.

[0008] In a possible implementation, the signal acquisition device includes a first sensor, a second sensor, a third sensor, a fourth sensor, and a fifth sensor, each disposed within the mounting housing; The first sensor is a methane or propane gas sensor, the second sensor is a carbon monoxide gas sensor, the third sensor is an oil fume sensor, the fourth sensor is an airflow sensor, and the fifth sensor is a temperature sensor.

[0009] Thirdly, this application also provides a device, including a range hood and a sensor assembly disposed in the inner cavity of the range hood, the sensor assembly being as described above.

[0010] The beneficial effects of the embodiments of the present invention are: The operating status of the range hood is determined by whether a signal acquisition device can detect airflow within the hydraulic press cavity. When the signal acquisition device detects negative pressure airflow, it indicates the range hood is operating; when it does not detect negative pressure airflow, it indicates the range hood is off. The power supply method of the signal acquisition device can switch according to the operating status of the range hood. When the range hood is detected as operating, it switches to powering the signal acquisition device and charging the energy storage unit via the range hood's power supply. When the range hood is detected as off, it switches to powering the signal acquisition device via the energy storage unit. This allows for gas detection even when the range hood is offline, continuously monitoring the kitchen environment after the user turns it off. It also avoids prolonged reliance on the range hood's main power supply, reducing standby power consumption and significantly extending the battery life of the sensor components when the range hood is not in use. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a circuit structure diagram of the overall embodiment of the present invention; Figure 2 This is a control timing diagram for a range hood according to an embodiment of the present invention. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0015] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0016] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0017] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0018] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0019] First Embodiment Please refer to Figures 1 to 2 This embodiment provides an offline multimodal sensor power consumption control method for a sensor assembly and a device control unit. The sensor assembly includes a mounting housing, an energy storage device, and a signal acquisition device. The mounting housing is disposed within the inner cavity of the range hood of the device. The energy storage device and the signal acquisition device are respectively disposed within the mounting housing and electrically connected to the control device. The method includes: Step S10: Determine whether the range hood is working based on whether the signal collector has collected negative pressure airflow information; Step S20: Switch the power supply mode of the signal acquisition device based on the working status of the range hood; Specifically, when it is determined that the range hood is in working condition, the energy storage device and the signal acquisition device switch to power supply through the power supply of the range hood; when it is determined that the range hood is stopped, the signal acquisition device switches to power supply through the energy storage device.

[0020] In step S10, when the range hood is working, the fan at its exhaust port starts, generating negative pressure. This promotes the flow of air near the range hood through its air inlet into the inner cavity of the range hood and out through the exhaust port, thus forming a negative pressure airflow. Therefore, the working status of the range hood can be determined by whether the signal collector can detect the airflow generated in the inner cavity of the range hood. When the signal collector detects the presence of negative pressure airflow, it can be determined that the range hood is in a working state; when the signal collector does not detect negative pressure airflow, it can be determined that the range hood is in a stopped state.

[0021] In step S20, the power supply mode of the signal acquisition unit can be switched according to the working status of the range hood. When it is determined that the range hood is in working condition, the power supply is switched to the range hood's power supply to power the signal acquisition unit and charge the energy storage device. When it is determined that the range hood is in a stopped state, the power supply is switched to the energy storage device to power the signal acquisition unit. This enables the signal acquisition unit to perform gas detection even when the range hood is offline, and can continue to monitor the kitchen environment after the user turns off the range hood. At the same time, it avoids occupying the main power supply of the range hood for a long time, reduces standby power consumption, and significantly extends the battery life of the sensor components during the period when the range hood is not in use.

[0022] In some embodiments, based on the working state of the range hood, the working state of the blower inside the mounting housing is also controlled; wherein, when no negative pressure airflow information is collected, the blower is controlled to work intermittently; when the negative pressure airflow information is collected, the blower is controlled to stop working.

[0023] In this embodiment, a fan damper (such as a fan) is also installed inside the housing. When the range hood is off, the fan damper generates negative pressure airflow, ensuring gas flow within the range hood cavity even when offline, allowing signal acquisition to detect gas changes. When no negative pressure airflow information is collected, the fan damper is controlled to operate intermittently; when negative pressure airflow information is collected, the fan damper stops operating, while simultaneously preventing the fan from running continuously, thus reducing the overall power consumption of the device.

[0024] In some embodiments, switching the power supply mode of the signal acquisition device based on the operating state of the range hood includes: When the air controller is working, it controls the first, second, and third sensors of the signal acquisition unit to work, and the fourth and fifth sensors to be powered off. The first sensor is a methane or propane gas sensor, the second sensor is a carbon monoxide gas sensor, the third sensor is an oil fume sensor, the fourth sensor is an airflow sensor, and the fifth sensor is a temperature sensor.

[0025] In this embodiment, the operation of the blower already provides internal airflow, eliminating the need for real-time participation of the airflow sensor and temperature sensor. Turning off both at this time can significantly reduce instantaneous power consumption. However, keeping the gas and fume sensors operational ensures that the system can still complete safety detection even when the range hood has not yet been started but a gas leak may occur. This reduces the average power consumption during the offline phase while maintaining the continuity of safety monitoring.

[0026] In some embodiments, when the air duct is working, the working mode of the first sensor, the second sensor, and the third sensor is such that the first sensor works continuously, while the second sensor and the three sensors work alternately.

[0027] In this embodiment, during the operation of the air ventilator, the first sensor (methane / propane) operates continuously, while the second sensor (carbon monoxide) and the third sensor (fume) operate alternately. Since methane has the lowest explosive limit and requires continuous monitoring, the first sensor is ensured to operate continuously during the air ventilator's operation. Carbon monoxide and fume levels typically do not rise sharply simultaneously during shutdown, and the second and third sensors operate alternately, further saving power.

[0028] In some embodiments, when the blower stops working, the fourth sensor and the fifth sensor are energized to detect whether negative pressure airflow is generated and to determine the working status of the range hood.

[0029] In this embodiment, after the air blower stops working, it is necessary to reconfirm whether there is negative pressure airflow to determine whether it is necessary to switch back to the main unit power supply and fully activate the sensors. At this time, the fourth sensor (airflow sensor) and the fifth sensor (temperature sensor) are powered on again, and cross-verification is performed using two parameters: flow rate and temperature difference, to avoid frequent switching caused by misjudgment of a single signal.

[0030] In some embodiments, when it is determined that the hydraulic press is in a working state, the first sensor, the second sensor, and the third sensor are controlled to work simultaneously. When it is determined that the hydraulic press is in a stopped state, the first sensor, the second sensor, and the third sensor are controlled to stop working.

[0031] In this embodiment, once the range hood is confirmed to be in operation, the main unit's power supply is immediately restored, and the first, second, and third sensors are simultaneously activated to ensure full-speed monitoring of all critical pollutants during peak cooking periods. After confirming shutdown, the first, second, and third sensors are completely de-energized and enter a minimum power consumption sleep mode, retaining only the standby current of the control device itself.

[0032] Second Embodiment The sensor assembly of this application embodiment includes: a mounting housing, an energy storage device, and a signal acquisition device. The mounting housing is disposed within the inner cavity of the range hood of the device. The energy storage device and the signal acquisition device are respectively disposed within the mounting housing. Based on whether the signal acquisition device collects negative pressure airflow information, it is determined whether the range hood is working. Based on the working state of the range hood, the power supply mode of the signal acquisition device is switched. Specifically, when it is determined that the range hood is working, the energy storage device and the signal acquisition device switch to be powered by the power supply of the range hood; when it is determined that the range hood is stopped, the signal acquisition device switches to be powered by the energy storage device.

[0033] In this embodiment, the mounting housing is a small box-like structure installed inside the range hood's cavity. The mounting housing contains chambers for housing the energy storage device and the signal acquisition device. Furthermore, the mounting housing has an air inlet and an air outlet, allowing communication with the range hood's cavity. When negative pressure airflow is generated inside the range hood, some of the airflow can flow into the mounting housing for detection by the signal acquisition device. The range hood's operating status is determined by whether the signal acquisition device can detect airflow within the range hood's cavity. When the signal acquisition device detects negative pressure airflow, it indicates the range hood is operating; when it does not detect negative pressure airflow, it indicates the range hood is stopped. When the range hood is detected as being in operation, the system switches to powering the signal acquisition unit via the range hood's power supply and charging the energy storage device. When the range hood is detected as being off, the system switches to powering the signal acquisition unit via the energy storage device. This allows the signal acquisition unit to perform gas detection even when the range hood is offline, and to continue monitoring the kitchen environment after the user turns off the device. It also avoids prolonged use of the range hood's main power supply, reduces standby power consumption, and significantly extends the battery life of the sensor components during periods when the range hood is not in use.

[0034] In some embodiments, the signal acquisition device includes a first sensor, a second sensor, a third sensor, a fourth sensor, and a fifth sensor, each disposed within the mounting housing; wherein the first sensor is a methane or propane gas sensor, the second sensor is a carbon monoxide gas sensor, the third sensor is an oil fume sensor, the fourth sensor is an airflow sensor, and the fifth sensor is a temperature sensor.

[0035] Based on the same inventive concept, this application also provides a device, the implementation principle of which is the same as that of the sensor components, and the repeated parts will not be described again.

[0036] An embodiment of this application provides a device including a range hood and a sensor assembly disposed within the cavity of the range hood. The control device includes a range hood control board and a sensor control board. The interfaces of a first sensor, a second sensor, a third sensor, a fourth sensor, and a fifth sensor are all mounted on the sensor control board and controlled by it. The interfaces of the sensor control board are also mounted on the range hood control board and controlled by it. The range hood is powered by an external power source, and the control device can switch the power supply mode of the signal acquisition unit, reducing standby power consumption and significantly extending the battery life of the sensor assembly when the range hood is not in use.

[0037] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for controlling the power consumption of an offline multimodal sensor, characterized in that, A control device for a sensor assembly and equipment, the sensor assembly comprising: a mounting housing, an energy storage device, and a signal acquisition device, the mounting housing being disposed within the inner cavity of the range hood of the equipment; the energy storage device and the signal acquisition device being respectively disposed within the mounting housing and respectively electrically connected to the control device; the method comprising: Based on whether the signal collector has collected negative pressure airflow information, it is determined whether the range hood is working; The power supply mode of the signal acquisition device is switched based on the working status of the range hood; Specifically, when the range hood is determined to be in operation, the energy storage device and the signal acquisition device switch to power supply through the range hood's power source; when the range hood is determined to be off, the signal acquisition device switches to power supply through the energy storage device.

2. The offline multimodal sensor power consumption control method according to claim 1, characterized in that, Based on the working state of the range hood, the working state of the air damper inside the mounting housing is also controlled; Specifically, when no negative pressure airflow information is collected, the air damper is controlled to work intermittently; when the negative pressure airflow information is collected, the air damper is controlled to stop working.

3. The offline multimodal sensor power consumption control method according to claim 2, characterized in that, The method of switching the power supply mode of the signal acquisition device based on the working status of the range hood includes: When the air controller is working, it controls the first, second, and third sensors of the signal acquisition unit to work, and the fourth and fifth sensors to be powered off. The first sensor is a methane or propane gas sensor, the second sensor is a carbon monoxide gas sensor, the third sensor is an oil fume sensor, the fourth sensor is an airflow sensor, and the fifth sensor is a temperature sensor.

4. The offline multimodal sensor power consumption control method according to claim 3, characterized in that, When the air duct is working, the working mode of the first sensor, the second sensor, and the third sensor is that the first sensor works continuously, while the second sensor and the three sensors work alternately.

5. The offline multimodal sensor power consumption control method according to claim 3, characterized in that, When the air damper stops working, the fourth and fifth sensors are energized to detect whether negative pressure airflow is generated and to determine the working status of the range hood.

6. The offline multimodal sensor power consumption control method according to claim 5, characterized in that, When it is determined that the hydraulic press is in working condition, the first sensor, the second sensor, and the third sensor are controlled to work simultaneously.

7. The offline multimodal sensor power consumption control method according to claim 5, characterized in that, When it is determined that the hydraulic press is in a stopped state, the first sensor, the second sensor, and the third sensor are controlled to stop working.

8. A sensor assembly, characterized in that, include: The device comprises a mounting housing, an energy storage unit, and a signal acquisition unit, wherein the mounting housing is located inside the range hood cavity of the equipment; the energy storage unit and the signal acquisition unit are respectively located inside the mounting housing. Based on whether the signal collector has collected negative pressure airflow information, it is determined whether the range hood is working; The power supply mode of the signal acquisition device is switched based on the working status of the range hood; Specifically, when the range hood is determined to be in operation, the energy storage device and the signal acquisition device switch to power supply through the range hood's power source; when the range hood is determined to be off, the signal acquisition device switches to power supply through the energy storage device.

9. The sensor assembly according to claim 8, characterized in that, The signal acquisition device includes a first sensor, a second sensor, a third sensor, a fourth sensor, and a fifth sensor, which are respectively disposed within the mounting housing; The first sensor is a methane or propane gas sensor, the second sensor is a carbon monoxide gas sensor, the third sensor is an oil fume sensor, the fourth sensor is an airflow sensor, and the fifth sensor is a temperature sensor.

10. A device, characterized in that, It includes a range hood and a sensor assembly disposed in the inner cavity of the range hood, the sensor assembly being as described in claim 8 or 9.

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