WO2016041264A1

WO2016041264A1 - Air treatment system and control method thereof

Info

Publication number: WO2016041264A1
Application number: PCT/CN2014/093285
Authority: WO
Inventors: 刘金龙; 程永甫
Original assignee: 青岛海尔空调器有限总公司
Priority date: 2014-09-18
Filing date: 2014-12-08
Publication date: 2016-03-24
Also published as: CN104315674A

Abstract

An air treatment system, comprising an infrared sensing module (101) and a micro control unit (MCU) module (102); the infrared sensing module (101) is used to transmit infrared light signals to an ambient environment, receive infrared light signals reflected and transmitted by heat sources in the ambient environment, and transfer to the MCU module (102) the infrared light signals reflected and transmitted by the heat sources in the ambient environment. The MCU module (102) is used to control the operation of an air treatment system according to the infrared light signals reflected and transmitted by the heat sources. Also disclosed is a control method for the air treatment system.

Description

Air treatment system and control method thereof

Technical field

The invention relates to the technical field of household electrical appliances, and in particular to an air treatment system and a method for controlling a screen switch of an air treatment system.

Background technique

Existing domestic air handling system products, including purifiers, dehumidifiers, etc., all have display screens, and some products also have display light strips to increase the display effect of the product. To close the display screen, it must be equipped with an air handling system. The remote control can also turn the display screen or light strip on or off by touching the display button. Other functions of the existing air handling system, such as turning on or off, adjusting the temperature, etc., require a remote control or a touch screen button. If the remote control is not around or in front of the air handling system, you will need to look around for the remote control or go to the air handling system to bring inconvenience.

Summary of the invention

One of the objects of the present invention is to provide an air treatment system to solve the problem of inconvenient function control of the prior art air treatment system.

In some illustrative embodiments, the air treatment system includes: an infrared sensing module and a MicroController Unit (MCU) module, the infrared sensing module for transmitting an infrared light signal to a surrounding environment; and receiving the An infrared light signal reflected by a heat source in the surrounding environment and an infrared light signal emitted by the heat source in the surrounding environment, and transmitting an infrared light signal reflected by the heat source and an infrared light signal emitted by the heat source to the micro a control unit MCU module; the micro control unit MCU module, configured to control operation of the air processing system according to an infrared light signal reflected by the heat source and an infrared light signal emitted by the heat source.

Another object of the present invention is to provide a method of controlling an air treatment system to solve the problem of inconvenient function control of the prior art air treatment system.

In some illustrative embodiments, the method of controlling an air treatment system includes: transmitting an infrared light signal to a surrounding environment; and receiving an infrared light signal reflected back by the heat source in the surrounding environment and a heat source in the surrounding environment The emitted infrared light signal controls the operation of the air treatment system based on the infrared light signal reflected by the heat source and the infrared light signal emitted by the heat source.

The illustrative embodiments of the present invention include the following advantages over the prior art:

The air processing system and the control method thereof according to the embodiment of the invention adopt an infrared sensing module and adopt an infrared sensing control mode, which is simple in operation and can realize a simple control function, and can be used not only for controlling a display screen switch but also for switching on and off, Adjust functions such as temperature and humidity.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic diagram showing the circuit structure of an air treatment system according to an embodiment of the present invention;

2 is a flow chart of a method of controlling an air treatment system according to an embodiment of the present invention.

detailed description

In the following detailed description, numerous specific details are set forth However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, components, and circuits are not described in detail so as not to affect the understanding of the invention.

The air treatment system may be a single function air handling system such as a purifier, a dehumidifier or a humidifier or the like. The air handling system can also be a combined air handling system including a base, one or more air handling devices disposed on the base, and a top cover disposed on one or more air handling devices. Each air treatment device includes an air inlet, an air outlet, and at least one of the following: an air purification module, a dehumidification module, and a humidification module.

FIG. 1 is a schematic diagram showing the circuit structure of an air treatment system according to an embodiment of the present invention.

The air treatment system includes an infrared sensing module 101 and a micro control unit MCU module 102. The infrared sensing module 101 is configured to emit an infrared light signal to the surrounding environment; and receive the infrared light signal reflected by the heat source in the surrounding environment and the infrared light signal emitted by the heat source in the surrounding environment, and reflect the infrared light signal and the heat source reflected back by the heat source. The transmitted infrared light signal is transmitted to the micro control unit MCU module. The micro control unit MCU module 102 is configured to control the operation of the air processing system based on the infrared light signal reflected back by the heat source and the infrared light signal emitted by the heat source.

In the embodiment of the present invention, if the infrared light emitted by the infrared sensing module is blocked by the heat source, since the heat source itself emits infrared light, the infrared light signal reflected by the heat source and the infrared light signal emitted by the heat source are superimposed. The intensity of the infrared light emitted by the infrared sensing module is increased such that the micro-control unit MCU module can detect a change in the intensity of the infrared light, thereby controlling the operation of the air handling system in accordance with the change.

In some demonstrative embodiments, the air handling system further includes a function selection module 103 for selecting functions of the air handling system. The functions of the air handling system include: switching of the air handling system, switching of the screen, adjustment of temperature and humidity.

The air treatment system in the embodiment of the present invention can provide various functions controlled by infrared control mode. The function selection module enables switching between different functions.

In some illustrative embodiments, the air handling system further includes an activation module 104 for turning on the infrared control function, triggering the infrared sensing module 101, the micro control unit MCU module 102, and the function selection module 103 to operate.

In the embodiment of the invention, a startup module is provided to turn on the infrared control function. When this function is not needed, such as no one at home, this function can be turned off to save power and avoid unnecessary interference with the infrared control function.

In some illustrative embodiments, the infrared sensing module 101 may specifically include an infrared emitting unit 1011, a receiving sensing unit 1012, and a signal operational amplifying circuit unit 1013. The infrared emitting unit 1011 is configured to emit an infrared light signal to the surrounding environment. The receiving sensing unit 1012 is configured to receive an infrared light signal reflected by a heat source in the surrounding environment and an infrared light signal emitted by a heat source in the surrounding environment. The signal operation amplifying circuit unit 1013 is configured to amplify the infrared light signal reflected by the heat source in the surrounding environment and the infrared light signal emitted by the heat source in the surrounding environment, and send the amplified infrared light signal to the micro control unit MCU module 102. .

In some illustrative embodiments, the receiving sensing unit 1012 includes a distance sensing sensor 1012A for determining a distance between the heat source and the air handling system based on a change in the time interval between the emitted infrared light signal and the received infrared light signal. The change is sent to the micro-control unit MCU module 102. The micro control unit MCU module 102 is configured to control the air handling system to adjust the current operating state according to the change in distance.

In the embodiment of the present invention, the control of the function of the bidirectional adjustment, such as the increase or decrease of the temperature or the humidity, is realized by setting the distance sensing sensor to become larger or smaller by the distance.

The micro control unit MCU module 102 is configured to control the operation of the air processing system according to the infrared light signal reflected by the heat source and the infrared light signal emitted by the heat source as follows:

The micro control unit MCU module 102 is configured to compare the intensity of the infrared signal received by the infrared sensing module 101 with the intensity of the infrared signal emitted by the infrared sensing module. If the heat source is outside the sensing range of the infrared sensing module 101, the intensity of the infrared signal received by the infrared sensing module 101 is the same as the intensity of the infrared signal emitted by the infrared sensing module 101, and the micro control unit MCU module 102 is used to control the air processing system. Keep the current running state. If the heat source is located within the sensing range of the infrared sensing module 101, the infrared signal received by the infrared sensing module 101 includes the infrared light signal reflected by the heat source and the infrared light signal emitted by the heat source in the surrounding environment, and the infrared sensing module 101 receives the infrared light signal. The intensity of the infrared signal relative to the infrared signal emitted by the infrared sensing module 101 is increased, and the micro control unit MCU module 102 is used to control the air processing system to adjust the current operating state.

The functions of the air treatment system when infrared control is available include: the switch of the air treatment system, When the screen is switched and the temperature is adjusted, the adjustment of the operating state of the air handling system can be divided into the following cases.

For the opening or closing of the air treatment system: the infrared signal received by the infrared sensing module 101 is increased relative to the infrared signal emitted by the infrared sensing module 101, then, if the air processing system is in an open state, the micro control unit MCU module 101 For shutting down the air handling system; if the air handling system is in the off state, the micro control unit MCU module 101 is used to open the air handling system.

The opening or closing of the air treatment system may also adopt the following control mode: the micro control unit MCU module 102 is used to control the switch of the air treatment system according to the change of the distance, the distance is reduced, the air treatment system is opened, the distance is increased, and the air is turned off. Processing system. This change in distance is obtained by the distance sensing sensor 1012A.

For the opening or closing of the screen of the air treatment system: the infrared signal received by the infrared sensing module 101 is increased relative to the infrared signal emitted by the infrared sensing module 101, then, if the screen of the air processing system is in the open state, the micro control The unit MCU module 102 is used to close the screen of the air handling system; if the screen of the air handling system is in the off state, the micro control unit MCU module 102 is used to open the screen of the air handling system.

The opening or closing of the screen of the air treatment system may also adopt the following control mode: the micro control unit MCU module 102 is configured to control the switch of the screen of the air processing system according to the change of the distance, reduce the distance, and open the screen of the air processing system. As the distance increases, the screen of the air handling system is turned off. This change in distance is obtained by the distance sensing sensor 1012A.

For the adjustment of the temperature or humidity of the air treatment system: the micro control unit MCU module 102 is used to control the temperature or humidity of the air treatment system according to the change of the distance, the distance is reduced, and the temperature or humidity of the air treatment system is reduced; the distance is increased, and the distance is increased. The temperature or humidity of a high air handling system. This change in distance is obtained by the distance sensing sensor 1012A.

The relationship between the magnitude of the distance change and the magnitude of the temperature or humidity change in the embodiments of the present invention can be achieved by software programming in the prior art.

The invention is not limited thereto, and other functions of the air treatment device, such as adjustment of screen brightness, adjustment of wind speed, and the like, can also be realized.

In some illustrative embodiments, the heat source is preferably a human body. When a human body swings an arm or slides in front of the air treatment system, passing through the infrared signal emission area is equivalent to forming an obstacle, and the infrared signal is reflected back, and the human body itself is constantly emitting an infrared model, which is superimposed at the same time. Upon receiving the sensing unit, the detected return signal strength changes. At the same time, if the distance of the human body blocking the infrared signal is different, the emission speed of the infrared signal is constant. The distance sensing sensor determines the distance change according to the time when the feedback signal is received.

The control method of the air treatment system is preferably applied to the above air treatment system. The control method of the air treatment system includes the following steps:

Step S203: transmitting an infrared light signal to the surrounding environment;

Step S204: receiving an infrared light signal reflected by a heat source in the surrounding environment and an infrared light signal emitted by a heat source in the surrounding environment;

Step S206: Control the operation of the air processing system according to the infrared light signal reflected by the heat source and the infrared light signal emitted by the heat source.

In the embodiment of the present invention, if there is a heat source shielding on the path through which the emitted infrared light passes, since the heat source itself also emits infrared light, the infrared light signal reflected by the heat source and the infrared light signal emitted by the heat source are superimposed with respect to the emitted The intensity of the infrared light is increased to cause a change in the intensity of the infrared light, thereby controlling the operation of the air handling system in accordance with the change.

In some illustrative embodiments, before step S203, the method further includes:

Step S202: Select the function of the air handling system. As previously mentioned, the functions of the air handling system include: switching of the air handling system, switching of the screen, adjustment of temperature and humidity.

The method of the embodiments of the present invention can be applied to various functions. Switch between different functions by selecting them.

Step S201: Turn on the infrared control function.

In the embodiment of the invention, the step of turning on the infrared control function is set. When this function is not needed, such as no one at home, this function can be turned off to save power and avoid unnecessary interference with the infrared control function.

In some illustrative embodiments, after step S204, the method further includes:

Step S205: amplifying the infrared light signal reflected back from the heat source in the surrounding environment and the infrared light signal emitted by the heat source in the surrounding environment.

Embodiments of the present invention enable better resolution of infrared light signals by this step.

In some illustrative embodiments, step S206 specifically includes the following process:

Step S2061: Comparing the intensity of the received infrared signal with the intensity of the transmitted infrared signal. If the intensity of the received infrared signal is the same as the intensity of the transmitted infrared signal, proceeding to step S2062, if the intensity of the received infrared signal is The intensity of the transmitted infrared signal is increased, proceeding to step S2063;

Step S2062: If the heat source is outside the sensing range of the infrared sensing, the received red The intensity of the external signal is the same as the intensity of the transmitted infrared signal, and the air handling system is controlled to maintain the current operating state;

Step S2063: If the heat source is located within the sensing range of the infrared sensing, the received infrared signal includes an infrared light signal reflected by the heat source and an infrared light signal emitted by the heat source in the surrounding environment, and the received infrared signal is relative to the emitted infrared light. The strength of the signal is increased and the air handling system is controlled to adjust the current operating state.

Embodiments of the present invention achieve control of related functions by changes in infrared signal strength. Specifically, if the air handling system is in an open state, the air handling system is turned off; if the air handling system is in a closed state, the air handling system is turned on. Alternatively, if the screen of the air handling system is on, the screen of the air handling system is turned off; if the screen of the air handling system is off, the screen of the air handling system is turned on.

In some illustrative embodiments, step S206 may further include the following process:

Step S2064: judging the change of the distance between the heat source and the air processing system according to the change of the time interval of the emitted infrared light signal and the received infrared light signal, and controlling the air processing system to adjust the current running state according to the change of the distance.

Embodiments of the present invention achieve control of related functions by determining changes in distance by infrared light. Specifically, if the distance is reduced, the air handling system is turned on, and if the distance is increased, the air handling system is turned off. Alternatively, if the distance is reduced, open the screen of the air handling system and if the distance increases, turn off the screen of the air handling system. Alternatively, if the distance is reduced, the temperature or humidity of the air treatment system is reduced; if the distance is increased, the temperature or humidity of the air treatment system is increased.

The heat source of the control method of the air treatment system is preferably a human body, and may of course be other heat sources, and is not limited thereto.

In summary, the air treatment system and the air treatment system control method adopt infrared sensing control mode, and the operation is simple, and a simple control function can be realized. When the human body is a heat source, the user can control the air conditioner products by waving or separating the air, and the creativity is novel, and the user's experience is enhanced.

The description of the above embodiments is only for helping to understand the method and the core idea of the present invention; at the same time, for those skilled in the art, according to the idea of the present invention, there are some changes in the specific embodiments and application scopes. In summary, the content of the specification should not be construed as limiting the invention.

Claims

An air treatment system, comprising: an infrared sensing module and a micro control unit MCU module,

The infrared sensing module is configured to emit an infrared light signal to the surrounding environment; and receive an infrared light signal reflected by the heat source in the surrounding environment and an infrared light signal emitted by the heat source in the surrounding environment, and the heat source The reflected infrared light signal and the infrared light signal emitted by the heat source are transmitted to the micro control unit MCU module;

The micro control unit MCU module is configured to control operation of the air processing system according to an infrared light signal reflected by the heat source and an infrared light signal emitted by the heat source.
The air handling system of claim 1 further comprising: a function selection module for selecting a function of said air handling system, said air handling system comprising: a switch of the air handling system, a screen Switching, temperature and humidity adjustment.
The air handling system of claim 2, further comprising: a startup module for enabling an infrared control function to trigger operation of the infrared sensing module, the micro control unit MCU module, and the function selection module.
The air treatment system according to claim 3, wherein the infrared sensing module comprises: an infrared emitting unit, a receiving sensing unit, and a signal operational amplifying circuit unit;

The infrared emitting unit is configured to emit an infrared light signal to a surrounding environment;

The receiving sensing unit is configured to receive an infrared light signal reflected by a heat source in the surrounding environment and an infrared light signal emitted by a heat source in the surrounding environment;

The signal operation amplifying circuit unit is configured to amplify an infrared light signal reflected by a heat source in the surrounding environment and an infrared light signal emitted by a heat source in the surrounding environment, and send the amplified infrared light signal The micro control unit MCU module is given.
The air treatment system of claim 3 wherein:

The micro control unit MCU module is configured to compare an intensity of the infrared signal received by the infrared sensing module with an intensity of the infrared signal emitted by the infrared sensing module;

If the heat source is outside the sensing range of the infrared sensing module, then The intensity of the infrared signal received by the infrared sensing module is the same as the intensity of the infrared signal emitted by the infrared sensing module, and the micro control unit MCU module is configured to control the air processing system to maintain a current operating state;

If the heat source is located within the sensing range of the infrared sensing module, the infrared signal received by the infrared sensing module includes an infrared light signal reflected by the heat source and an infrared emitted by a heat source in the surrounding environment. An optical signal, wherein the infrared signal received by the infrared sensing module is increased in intensity relative to the infrared signal emitted by the infrared sensing module, and the micro control unit MCU module is configured to control the air processing system to adjust current The running state.
The air treatment system according to claim 5, wherein the intensity of the infrared signal received by the infrared sensing module relative to the infrared signal emitted by the infrared sensing module is increased,

If the air handling system is in an open state, the micro control unit MCU module is configured to shut down the air handling system;

The micro control unit MCU module is used to open the air handling system if the air handling system is in a closed state.
The air treatment system according to claim 5, wherein the intensity of the infrared signal received by the infrared sensing module relative to the infrared signal emitted by the infrared sensing module is increased,

If the screen of the air handling system is in an open state, the micro control unit MCU module is configured to close a screen of the air handling system;

The micro control unit MCU module is used to open the screen of the air handling system if the screen of the air handling system is in a closed state.
The air treatment system according to claim 2, wherein said receiving sensing unit comprises: a distance sensing sensor for time interval according to said emitted infrared light signal and said received infrared light signal Varying to determine a change in distance between the heat source and the air treatment system, and transmitting the change in the distance to the MCU module of the micro control unit

The micro control unit MCU module is configured to control the air processing system to adjust a current operating state according to the change of the distance.
The air handling system of claim 8 wherein said micro control unit MCU module is operative to control a switch of said air handling system based on said change in distance, said distance being reduced, said air handling being turned on System, the distance increases Large, close the air handling system.
The air handling system of claim 8 wherein said micro control unit MCU module is operative to control a switch of a screen of said air handling system based on said change in distance, said distance being reduced, said opening The screen of the air handling system, the distance increases, closing the screen of the air handling system.
The air treatment system according to claim 8 wherein said micro control unit MCU module is operative to control a temperature or humidity of said air treatment system based on said change in distance, said distance being reduced, said reducing said The temperature or humidity of the air treatment system; the distance increases, raising the temperature or humidity of the air treatment system.
The air treatment system according to any one of claims 1 to 12, wherein the heat source is a human body.
A method for controlling an air treatment system, comprising:

Infrared light signal is emitted to the surrounding environment;

And receiving an infrared light signal reflected back by the heat source in the surrounding environment and an infrared light signal emitted by the heat source in the surrounding environment;

The operation of the air treatment system is controlled based on an infrared light signal reflected back by the heat source and an infrared light signal emitted by the heat source.
The method according to claim 13, wherein the controlling the process of the operation of the air processing system according to the infrared light signal reflected by the heat source and the infrared light signal emitted by the heat source further comprises: The function of the air handling system is selected, the functions of which include: switching of the air handling system, switching of the screen, adjustment of temperature and humidity.
The method of claim 14 wherein said step of transmitting an infrared light signal to said ambient environment further comprises: turning on an infrared control function.
The method according to claim 14, wherein the process of receiving the infrared light signal reflected by the heat source in the surrounding environment and the infrared light signal emitted by the heat source in the surrounding environment further comprises: The infrared light signal reflected back by the heat source in the surrounding environment and the infrared light signal emitted by the heat source in the surrounding environment are amplified.
The method of claim 14 wherein said controlling said operation of said air handling system based on said infrared light signal reflected by said heat source and said infrared light signal emitted by said heat source comprises:

Comparing the received intensity of the infrared signal with the intensity of the emitted infrared signal;

If the heat source is outside the sensing range of the infrared sensing, the intensity of the received infrared signal is the same as the intensity of the emitted infrared signal, and the air processing system is controlled to maintain the current operating state;

If the heat source is located within the sensing range of the infrared sensing, the received infrared signal includes an infrared light signal reflected by the heat source and an infrared light signal emitted by a heat source in the surrounding environment, and received The infrared signal is increased in intensity relative to the emitted infrared signal, and the air processing system is controlled to adjust the current operating state.
The method according to claim 17, wherein the received infrared signal is increased in intensity relative to the emitted infrared signal, and the process of controlling the air processing system to adjust the current operating state comprises:

Closing the air handling system if the air handling system is in an open state;

The air handling system is turned on if the air handling system is in a closed state.
The method according to claim 17, wherein the received infrared signal is increased in intensity relative to the emitted infrared signal, and the process of controlling the air processing system to adjust the current operating state comprises:

Closing the screen of the air handling system if the screen of the air handling system is in an open state;

If the screen of the air handling system is in the off state, the screen of the air handling system is turned on.
The method according to claim 14, wherein the controlling the operation of the air processing system according to the infrared light signal reflected by the heat source and the infrared light signal emitted by the heat source comprises:

Judging a change in a distance between the heat source and the air treatment system according to a change in a time interval of the emitted infrared light signal and the received infrared light signal, and controlling the air according to the change in the distance The processing system adjusts the current operating state.
The method of claim 20, wherein the controlling the air processing system to adjust the current operating state based on the change in the distance comprises:

The switch of the air treatment system is controlled based on the change in distance, the distance is reduced, the air treatment system is opened, the distance is increased, and the air treatment system is turned off.
The method of claim 20, wherein the controlling the air processing system to adjust the current operating state based on the change in the distance comprises:

A switch of a screen of the air treatment system is controlled in accordance with a change in the distance, the distance being reduced, the screen of the air treatment system being opened, the distance being increased, the screen of the air treatment system being closed.
The method of claim 20, wherein the controlling the air processing system to adjust the current operating state based on the change in the distance comprises:

Controlling a temperature or humidity of the air treatment system based on a change in the distance, the distance decreasing, reducing a temperature or humidity of the air treatment system; the distance increasing, increasing a temperature of the air treatment system or humidity.
A method according to any one of claims 13 to 23, wherein the heat source is a human body.