CN116094507A - Infrared induction driving method, disinfectant machine and electronic equipment - Google Patents
Infrared induction driving method, disinfectant machine and electronic equipment Download PDFInfo
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- CN116094507A CN116094507A CN202310070819.4A CN202310070819A CN116094507A CN 116094507 A CN116094507 A CN 116094507A CN 202310070819 A CN202310070819 A CN 202310070819A CN 116094507 A CN116094507 A CN 116094507A
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- infrared
- signal
- voltage
- signals
- induction driving
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M35/00—Devices for applying media, e.g. remedies, on the human body
- A61M35/20—Non-portable devices, e.g. spraying booths
Abstract
The application belongs to the technical field of infrared detection, and provides an infrared induction driving method, a sterilizing liquid machine and electronic equipment, a first voltage sampling signal is obtained by sampling an infrared receiving tube, then a second voltage sampling signal is obtained by sampling the infrared receiving tube after a plurality of pulse infrared signals are emitted by an infrared emission tube, a voltage difference value between the second voltage sampling signal and the first voltage sampling signal is calculated, if the voltage difference value is greater than a preset threshold voltage, an induction driving signal is generated, and accordingly, the voltage difference value is used as the basis of whether an infrared signal is triggered or not, most interference signals are filtered, infrared triggering abnormal events are greatly reduced, and user experience is improved.
Description
Technical Field
The application belongs to the technical field of infrared detection, and particularly relates to an infrared induction driving method, a disinfectant machine and electronic equipment.
Background
At present, the infrared pair tube induction product (such as an infrared disinfectant liquid machine) in the market only carries out conventional software threshold level or AD detection, so that when the infrared induction product is used in a bathroom, the infrared induction product is easily interfered by the rapid change of the light intensity of white light (containing infrared spectrum) caused by a bathroom lamp switch, and the infrared false triggering is caused, so that disinfectant liquid is wasted and the resulting bathroom surface is sprayed with disinfectant liquid at an indefinite time, thereby greatly influencing the use experience of users.
On the other hand, when the infrared pair tube induction product (such as an infrared disinfectant machine) is in standby and the infrared working interval time (when the infrared code is not sent to be in working state), the power supply of the infrared receiving and transmitting heads is not controlled, and direct power supply treatment is adopted, so that when the infrared operation is not started in standby, the infrared receiving heads always sense the infrared spectrum when the background white light (containing the infrared spectrum) is strong, the receiving circuit is caused to frequently act to generate additional power consumption, the service life of the battery is greatly reduced, and the use experience of a user is affected.
Disclosure of Invention
The application aims to provide an infrared induction driving method, a sterilizing liquid machine and electronic equipment, and aims to solve the problem that the existing sterilizing liquid machine is easy to trigger abnormity caused by white light interference.
An embodiment of the present application provides an infrared induction driving method, including:
sampling the infrared receiving tube to obtain a first voltage sampling signal;
controlling an infrared transmitting tube to transmit a plurality of pulse infrared signals and then sampling the infrared receiving tube to obtain a second voltage sampling signal;
and calculating a voltage difference value between the second voltage sampling signal and the first voltage sampling signal, and generating an induction driving signal if the voltage difference value is larger than a preset threshold voltage.
In one embodiment, the controlling the infrared transmitting tube to transmit the plurality of pulse infrared signals and then sample the infrared receiving tube to obtain a second voltage sampling signal includes:
setting interval emission time of the pulse infrared signals, and emitting a plurality of pulse infrared signals at the interval emission time;
and sampling the infrared receiving tube to obtain a plurality of digital infrared sampling signals, and converting the plurality of infrared sampling signals into the second voltage sampling signals.
In one embodiment, the second voltage sample signal is an analog voltage signal;
the digital infrared sampling signal is a digital frequency signal.
In one embodiment, the number of digital infrared sampling signals is the same as the number of pulsed infrared signals.
In one embodiment, the interval transmission time is greater than a period time of the digital frequency signal.
In one embodiment, the infrared induction driving method further includes:
detecting whether a trigger signal is received, if the trigger signal is received, powering the infrared receiving tube and the infrared transmitting tube, and if the trigger signal is not received, powering off the infrared receiving tube and the infrared transmitting tube.
In one embodiment, the infrared induction driving method further includes:
and driving a motor to work according to the induction driving signal.
In one embodiment, the infrared induction driving method further includes:
and generating a display signal according to the induction driving signal.
The second aspect of the embodiments of the present application also provides a disinfectant fluid machine, comprising: a disinfectant device; and an induction control device for performing the infrared induction driving method as set forth in any one of the above to control the sterilizing liquid device to spray the sterilizing liquid.
A third aspect of the embodiments of the present application further provides an electronic device, including: a motor; and motor driving means for performing the infrared induction driving method as set forth in any one of the above to drive the motor to operate.
The beneficial effects of the embodiment of the application are that: the infrared receiving tube is controlled to emit a plurality of pulse infrared signals, then the infrared receiving tube is sampled to obtain a second voltage sampling signal, the voltage difference between the second voltage sampling signal and the first voltage sampling signal is calculated, and if the voltage difference is larger than a preset threshold voltage, an induction driving signal is generated, so that the voltage difference is used as a basis for triggering the infrared signals, most of interference signals are filtered, infrared triggering abnormal events are greatly reduced, and user experience is improved.
Drawings
Fig. 1 is a schematic diagram of an infrared induction driving method according to an embodiment of the present application;
fig. 2 is a schematic diagram of step S200 in an infrared induction driving method according to an embodiment of the present application;
fig. 3 is a schematic diagram two of an infrared induction driving method according to an embodiment of the present application;
fig. 4 is a schematic diagram III of an infrared induction driving method according to an embodiment of the present application;
fig. 5 is a schematic diagram of an infrared induction driving method according to an embodiment of the present application.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
The infrared pair tube induction product (such as an infrared disinfectant machine) only carries out conventional software threshold level or AD detection, so that the infrared induction product is easy to be interfered by the rapid change of the light intensity of white light (containing infrared spectrum) caused by a bathroom lamp switch when in use, and the infrared false triggering is caused, so that disinfectant is wasted, and the disinfectant water is sprayed on the bathroom counter surface at an indefinite time, thereby greatly influencing the use experience of users.
On the other hand, when the infrared pair tube induction product (such as an infrared disinfectant liquid machine) is in standby and the infrared working interval time (when the infrared code is not sent to work), the power supply of the infrared receiving and transmitting heads is not controlled, and direct power supply treatment is adopted, so that when the infrared operation is not started in standby, the infrared spectrum is always induced by the infrared receiving heads when the background white light (including the infrared spectrum) is strong, and the receiving circuit is frequently operated to generate additional power consumption. The infrared receiving circuit uses a digital signal 38.4K direct frequency acquisition mode, has high requirement on MCU sampling rate (signal period is 26 us), needs a special MCU with a hardware frequency capturing port function, and provides challenges for low-cost MCU selection of consumer products with high cost requirements such as a common disinfectant machine, so that the service life of a battery is greatly reduced, and the use experience of a user is affected.
In order to solve the above technical problems, improve market competitiveness, and meet customer requirements, the embodiment of the present application provides an infrared sensing driving method, as shown in fig. 1, where the infrared sensing driving method in the present embodiment includes steps S100 to S300.
In step S100, an infrared receiving tube is sampled to obtain a first voltage sampling signal.
Before the infrared transmitting tube transmits the pulse infrared signal, the infrared receiving tube is subjected to signal sampling to obtain a first voltage sampling signal, and the first voltage sampling signal is an analog signal.
In step S200, the infrared transmitting tube is controlled to transmit a plurality of pulse infrared signals, and then the infrared receiving tube is sampled to obtain a second voltage sampling signal.
In this embodiment, the infrared transmitting tube is controlled to transmit a plurality of pulse infrared signals, and then the voltage signal of the infrared receiving tube is collected, so as to obtain a second voltage sampling signal with the signal type being an analog signal.
In step S300, a voltage difference between the second voltage sampling signal and the first voltage sampling signal is calculated, and if the voltage difference is greater than a preset threshold voltage, an induction driving signal is generated.
In this embodiment, a voltage difference between the second voltage sampling signal and the first voltage sampling signal is calculated, and then the voltage difference is compared with a preset threshold voltage, and if the voltage difference is greater than the preset threshold voltage, a corresponding induction driving signal is generated.
In this embodiment, signal sampling is performed on the infrared receiving tube before and after the pulse infrared signal is emitted by the infrared emitting tube to obtain a first voltage sampling signal and a second voltage sampling signal, and then normal triggering of infrared detection and discrimination of white light interference are performed by comparing voltage difference values, so that the problem that the infrared receiving tube is wrongly triggered by the infrared signal in white light can be prevented, the problem that infrared wrongly triggered by the white light lamp interference is easily caused in the using process of an infrared pair tube sensing product is solved, and the using experience of a user is improved.
In one embodiment, referring to fig. 2, in step S200, after the infrared transmitting tube is controlled to transmit a plurality of pulse infrared signals, the infrared receiving tube is sampled to obtain a second voltage sampling signal, which includes step S210 and step S220.
In step S210, an interval emission time of the pulse infrared signal is set, and a plurality of the pulse infrared signals are emitted at the interval emission time.
In this embodiment, after the power-on, the interval emission time of the pulse infrared signals is set, or a plurality of pulse infrared signals are emitted by adopting the interval emission time set by default, and each pulse infrared signal may be composed of one or a plurality of continuous pulse signals.
In step S220, the infrared receiving tube is sampled to obtain a plurality of digital infrared sampling signals, and the plurality of infrared sampling signals are converted into the second voltage sampling signal.
Because the infrared receiving tube is opposite to the infrared transmitting tube, the infrared receiving tube senses a plurality of pulse infrared signals and generates corresponding voltage changes according to the plurality of pulse infrared signals, and therefore a plurality of digital infrared sampling signals are obtained after the infrared receiving tube is sampled.
In one embodiment, the second voltage sample signal is an analog voltage signal and the digital infrared sample signal is a digital frequency signal.
In this embodiment, the digital infrared sampling signal is a digital frequency signal in the form of square wave, the second voltage sampling signal is an analog voltage signal, the infrared receiving tube senses a pulse infrared signal, and the digital infrared sampling signal is converted into the second voltage sampling signal in the form of analog voltage signal by using the capacitance characteristic of the infrared receiving tube and the resistor connected with the infrared receiving tube to charge and discharge.
In one embodiment, the infrared receiver tube may be of the type HPT603P.
In one embodiment, the infrared transmitting tube may be of the type HIR303A112CP.
In this embodiment, the parasitic capacitance and the resistance charge-discharge characteristic of the infrared receiving tube are utilized to convert the 38.4KHZ digital frequency signal into an analog voltage signal, and the voltage difference of the analog signal before and after the infrared transmitting tube transmits is utilized to determine whether to normally trigger the signal or interfere the signal, so as to achieve the purposes of filtering interference, avoiding the infrared false triggering and improving the user experience.
In one embodiment, the number of digital infrared sampling signals is the same as the number of pulsed infrared signals.
In one embodiment, the number of the pulse infrared signals is 7, when the infrared transmitting tube transmits a plurality of pulse infrared signals, the infrared receiving tube senses the plurality of pulse infrared signals and generates corresponding voltage changes according to the plurality of pulse infrared signals, so that a plurality of digital infrared sampling signals are obtained after the infrared receiving tube is sampled.
In one embodiment, the interval transmission time is greater than the period time of the digital frequency signal.
In one embodiment, the interval transmission time may be 310ms.
In one embodiment, the digital frequency signal has a frequency of 38.4KHz.
In this embodiment, the infrared transmitting tube may be controlled to be turned on and off by a digital frequency signal with a frequency of 38.4KHz, so that the infrared transmitting tube transmits a pulse infrared signal with a corresponding frequency, and after the infrared transmitting tube transmits the pulse infrared signal, the infrared transmitting tube transmits the pulse infrared signal again after transmitting time at intervals, and the above steps are repeated, so that the infrared receiving tube may sense a plurality of pulse infrared signals, and similarly, the plurality of pulse infrared signals may be converted into a plurality of analog voltage signals.
In one embodiment, the second voltage sampling signal includes a plurality of analog voltage signals, and the voltage value of the second voltage sampling signal may be a maximum voltage value of the plurality of analog voltage signals.
In one embodiment, since the second voltage sampling signal and the first voltage sampling signal are both analog voltage signals, the voltage difference is also an analog voltage signal, a trigger time when the voltage difference is greater than a preset threshold voltage during the time when the infrared transmitting tube transmits the plurality of pulse infrared signals is calculated, and if the trigger time is greater than the preset time threshold, normal trigger is determined, and an induction driving signal is generated.
In one embodiment, voltage difference values of the second voltage sampling signal and the first voltage sampling signal during the period that the infrared transmitting tube transmits a plurality of pulse infrared signals are calculated, a voltage curve is generated based on the continuous plurality of voltage difference values, the voltage curve is compared with a preset voltage curve, if the voltage curve is consistent with the preset voltage curve, normal triggering of the infrared receiving tube is judged, and an induction driving signal is generated.
In one embodiment, referring to fig. 3, the infrared induction driving method in this embodiment further includes step S400.
In step S400, it is detected whether a trigger signal is received, if the trigger signal is received, the power is supplied to the infrared receiving tube and the infrared transmitting tube, and if the trigger signal is not received, the power is off to the infrared receiving tube and the infrared transmitting tube.
In this embodiment, the receiving switch may be set between the infrared receiving tube and the power supply, the transmitting switch may be set between the infrared transmitting tube and the power supply, when the trigger signal is received, the receiving switch and the transmitting switch are closed, the infrared receiving tube and the infrared transmitting tube are connected to the power supply, and when the trigger signal is not received, the infrared receiving tube and the infrared transmitting tube are disconnected from each other.
In one embodiment, the trigger signal may be generated by a touch key, when the whole machine is started, the touch key is not pressed, that is, when the system is not started and is in a standby state, the system main control defaults to set the trigger signal to be high-level output, and the receiving switch and the transmitting switch are disconnected, so that the power supplies of the infrared receiving tube and the infrared transmitting tube are turned off.
In one embodiment, when the system is started by waiting for pressing the touch key, the system main control sets the trigger signal to be high-level output within an interval transmitting time (for example, 310 ms), and the receiving switch and the transmitting switch are disconnected, so that the power supplies of the infrared receiving tube and the infrared transmitting tube are closed.
In the above embodiment, by adding the switching power supply circuit (such as the receiving switch and the transmitting switch), when the standby and startup infrared transmitting tubes are in the non-transmitting state, the power supplies of the infrared receiving tubes and the infrared transmitting tubes are turned off in time, and the whole machine can not cause the infrared receiving tubes to be triggered by infrared induction to cause additional power consumption even if the infrared receiving circuits are interfered by white light in most of time, thereby achieving the purpose of saving energy consumption and greatly prolonging the service life of the battery.
In one embodiment, referring to fig. 4, the infrared induction driving method in this embodiment further includes step S500.
In step S500, the motor is driven to operate according to the induction driving signal.
In this embodiment, the induction driving signal is output to the motor, the on-off of the motor power supply is controlled by the induction driving signal, or the motor is driven to work by the induction driving signal, so that the application scene of infrared induction is diversified, for example, in the application to a disinfection product, the motor is controlled by the induction driving signal, and the spraying of the disinfection spraying liquid is controlled.
In one embodiment, the motor is started to spray the disinfectant when the induction drive signal is high, and stopped to spray the disinfectant when the induction drive signal is low.
In one embodiment, referring to fig. 5, the infrared induction driving method in this embodiment further includes step S600.
In step S600, a display signal is generated according to the induction driving signal.
In this embodiment, the display device generates the display signal according to the induction driving signal by outputting the induction driving signal to the display device, thereby displaying the result of the infrared induction.
The embodiment of the application also provides a disinfectant machine, which comprises: a disinfectant device; and an induction control device for performing the infrared induction driving method as set forth in any one of the above to control the sterilizing liquid device to spray the sterilizing liquid.
In this embodiment, the method of driving by infrared induction according to any of the above embodiments is performed by the induction control device to detect whether the disinfectant spraying switch is triggered, and generate a corresponding induction driving signal when the triggering action is detected, so as to drive the disinfectant device to spray the disinfectant.
The embodiment of the application also provides electronic equipment, which comprises: a motor; and motor driving means for performing the infrared induction driving method according to any one of the embodiments described above to drive the motor to operate.
In this embodiment, the electronic device may be a disinfectant product, or may not be limited to a disinfectant product, for example, all products applied to an infrared transmitting tube and an infrared receiving tube, for example, the electronic device may be a return-purchase feeding sensing faucet, an infrared sensing toilet flusher, or the like.
The beneficial effects of the embodiment of the application are that: the infrared receiving tube is controlled to emit a plurality of pulse infrared signals, then the infrared receiving tube is sampled to obtain a second voltage sampling signal, the voltage difference between the second voltage sampling signal and the first voltage sampling signal is calculated, and if the voltage difference is larger than a preset threshold voltage, an induction driving signal is generated, so that the voltage difference is used as a basis for triggering the infrared signals, most of interference signals are filtered, infrared triggering abnormal events are greatly reduced, and user experience is improved.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (10)
1. An infrared induction driving method, characterized in that the infrared induction driving method comprises:
sampling the infrared receiving tube to obtain a first voltage sampling signal;
controlling an infrared transmitting tube to transmit a plurality of pulse infrared signals and then sampling the infrared receiving tube to obtain a second voltage sampling signal;
and calculating a voltage difference value between the second voltage sampling signal and the first voltage sampling signal, and generating an induction driving signal if the voltage difference value is larger than a preset threshold voltage.
2. The method of driving infrared induction according to claim 1, wherein the controlling the infrared transmitting tube to transmit a plurality of pulse infrared signals and then sample the infrared receiving tube to obtain a second voltage sampling signal comprises:
setting interval emission time of the pulse infrared signals, and emitting a plurality of pulse infrared signals at the interval emission time;
and sampling the infrared receiving tube to obtain a plurality of digital infrared sampling signals, and converting the plurality of infrared sampling signals into the second voltage sampling signals.
3. The method of claim 2, wherein the second voltage sampling signal is an analog voltage signal;
the digital infrared sampling signal is a digital frequency signal.
4. The method of driving infrared sensing according to claim 2, wherein the number of the digital infrared sampling signals is the same as the number of the pulse infrared signals.
5. The method of infrared induction driving according to claim 3, wherein the interval emission time is longer than a period time of the digital frequency signal.
6. The infrared induction driving method according to any one of claims 1 to 5, characterized in that the infrared induction driving method further comprises:
detecting whether a trigger signal is received, if the trigger signal is received, powering the infrared receiving tube and the infrared transmitting tube, and if the trigger signal is not received, powering off the infrared receiving tube and the infrared transmitting tube.
7. The infrared induction driving method according to any one of claims 1 to 5, characterized in that the infrared induction driving method further comprises:
and driving a motor to work according to the induction driving signal.
8. The infrared induction driving method according to any one of claims 1 to 5, characterized in that the infrared induction driving method further comprises:
and generating a display signal according to the induction driving signal.
9. A disinfectant fluid machine, comprising: a disinfectant device; and an induction control means for performing the infrared induction driving method as set forth in any one of claims 1 to 8 to control the sterilizing liquid device to spray the sterilizing liquid.
10. An electronic device, comprising: a motor; and a motor driving device for performing the infrared induction driving method as claimed in any one of claims 1 to 8 to drive the motor to operate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310070819.4A CN116094507A (en) | 2023-01-17 | 2023-01-17 | Infrared induction driving method, disinfectant machine and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310070819.4A CN116094507A (en) | 2023-01-17 | 2023-01-17 | Infrared induction driving method, disinfectant machine and electronic equipment |
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| Publication Number | Publication Date |
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| CN116094507A true CN116094507A (en) | 2023-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310070819.4A Pending CN116094507A (en) | 2023-01-17 | 2023-01-17 | Infrared induction driving method, disinfectant machine and electronic equipment |
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| CN (1) | CN116094507A (en) |
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- 2023-01-17 CN CN202310070819.4A patent/CN116094507A/en active Pending
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