CN113839660A - Man-machine interaction equipment suitable for complex household appliance environment - Google Patents
Man-machine interaction equipment suitable for complex household appliance environment Download PDFInfo
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- CN113839660A CN113839660A CN202110885796.3A CN202110885796A CN113839660A CN 113839660 A CN113839660 A CN 113839660A CN 202110885796 A CN202110885796 A CN 202110885796A CN 113839660 A CN113839660 A CN 113839660A
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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
- H03K17/945—Proximity switches
- H03K17/955—Proximity switches using a capacitive detector
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
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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
- H03K17/96—Touch switches
Abstract
The invention discloses a man-machine interaction device suitable for a complex household appliance environment, which can sense the distance between the hand of a user and a display operation panel through a distance sensing module when the user wants to perform man-machine interaction with the household appliance through the display operation panel, so that a main controller system can control a display screen and a functional device to enter a corresponding working state according to the distance, and the man-machine interaction experience of the user is improved; in addition, the main control module is arranged in the closed inner cavity formed by enclosing the display operation panel and the plastic electric control box, so that the negative ion wind is blocked, and the influence of charges generated by the ionization of the negative ion wind in the air on the distance sensing module is avoided; the invention can ensure the sensing accuracy of the distance sensing module, ensure that the main controller system can accurately control the working states of the display screen and the functional devices, and is suitable for complex working condition environments with negative ion wind interference and power grid interference of household appliances.
Description
Technical Field
The invention relates to a household appliance, in particular to a man-machine interaction device suitable for a complex household appliance environment.
Background
The distance induction sensor is widely applied to the mobile terminal of the mobile phone, and when the face of a user is close to the touch screen of the mobile phone, the mobile phone performs screen-rest processing to prevent the face of the user from being touched by mistake. Receive the application inspiration of distance induction sensor on cell-phone mobile terminal, use distance induction sensor on domestic appliance product, through the distance that detects the operation display interface of staff and household electrical appliances, when the staff leaves the operation display interface and is close to the operation display interface, different processing is made respectively to the major control system, can improve the human-computer interface grade, the promotion user experience of domestic appliance product undoubtedly greatly. However, compared with a mobile phone terminal, the service environment of the household appliance product is greatly influenced by power grid interference and self configuration (an anion generator, an infrared remote control receiving device, and the like), and a distance sensing method applied to the mobile phone cannot be directly applied to the household appliance product, so that a human-computer interaction device and a human-computer interaction method with a distance sensing function, which are suitable for complex household appliance environments, need to be designed.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a human-computer interaction device suitable for a complex household appliance environment is provided.
The technical scheme adopted by the invention is as follows:
a man-machine interaction device suitable for a complex household appliance environment comprises a display operation panel arranged on a household appliance shell, wherein a negative ion generator and a main control module are arranged inside the household appliance shell, and an air outlet of the negative ion generator is positioned at a side position where the display operation panel is relatively close to each other; the main control module comprises a PCB, and a main controller system, a distance sensing module, a display screen and a functional device which are arranged on the PCB, wherein the distance sensing module is used for sensing the distance between a human hand and the display operation panel, and the main controller system can control the working states of the display screen and the functional device according to a sensing signal output by the distance sensing module; the main controller system can be composed of a single chip microcomputer, an MCU and other existing control chips and peripheral circuits thereof.
The method is characterized in that:
a plastic electric control box is fixed inside the household appliance shell, the display operation panel covers the opening of the plastic electric control box, and the main control module is arranged in a closed inner cavity formed by enclosing the display operation panel and the plastic electric control box;
the main controller system continuously samples the induction signal output by the distance induction module to obtain N sampling samples, wherein N is more than or equal to 2, the sampling average value of the N sampling samples is calculated, and after the sampling samples with the deviation from the sampling average value larger than a preset deviation threshold value in the N sampling samples are removed, the average value of the rest sampling samples is calculated and recorded as the effective average value of the induction signal; and the main controller system takes the effective average value of the induction signals as a basis for controlling the working states of the display screen and the functional device.
Therefore, when a user wants to perform human-computer interaction with the household appliance through the display operation panel, the distance between the hand of the user and the display operation panel can be sensed through the distance sensing module, so that the main controller system can control the display screen and the functional device to enter the corresponding working state according to the distance, and the human-computer interaction experience of the user is improved;
in addition, aiming at the problem that the concentration of the negative ion wind blown out by the negative ion generator is very high due to the deceleration at the air outlet, so that the electric field at the position of the main control module close to the air outlet is greatly changed, and the induction accuracy of the distance induction module is greatly influenced, the main control module is arranged in the closed inner cavity formed by enclosing the display operation panel and the plastic electric control box, so that the negative ion wind is blocked, and the distance induction module is prevented from being influenced by the electric charges generated by the ionization of the negative ion wind in the air; in addition, the effective average value of the induction signals is used as a basis for controlling the working states of the display screen and the functional device, so that the anti-interference capability of the basis for controlling the working states is improved; therefore, the invention can ensure the sensing accuracy of the distance sensing module, ensure that the main controller system can accurately control the working states of the display screen and the functional device, and is suitable for complex working condition environments with negative ion wind interference and power grid interference of household appliances, such as household appliance products of air purifiers, cabinet air conditioners and the like.
Preferably: the area of the opening of the plastic electric control box is larger than that of the bottom surface of the plastic electric control box, so that the plastic electric control box forms a side surface which is obliquely arranged, and negative ion wind blown out from the back of the plastic electric control box by the negative ion generator can pass through the plastic electric control box along the side surface of the plastic electric control box and then is blown out from the air outlet. Therefore, for the household appliance which is limited by the internal structural layout and needs to enable the negative ion wind to pass through the plastic electric control box with the built-in main control module and then blow out from the air outlet, the negative ion wind can be prevented from entering the plastic electric control box from a gap between the plastic electric control box and the display operation panel by enabling the negative ion wind to pass through the plastic electric control box along the obliquely arranged side face, so that the false triggering of the main controller system on the display screen and the functional devices caused by the influence on the sensing sensitivity of the distance sensing module is prevented, and the damage of the main controller system under severe conditions is prevented.
As a preferred embodiment of the present invention: as shown in fig. 3, the household appliance housing is provided with an infrared remote control receiving device; the distance sensing module consists of a distance sensor and a sensing antenna, wherein the distance sensor consists of a sensing chip with the model of IFA127 and a peripheral circuit thereof.
The working principle of the distance sensor is as follows:
at the moment of powering on the man-machine interaction equipment, immediately sampling the capacitance on the induction antenna by the induction chip, detecting the electric field intensity of the current environment, and generating original reference data serving as a comparison reference; when a human hand approaches the display operation panel where the distance sensor is located, the electric field intensity changes, so that the capacitance on the induction antenna changes; therefore, under the enabling state of the distance detection function, the sensing chip samples the capacitance on the sensing antenna under the current environment in real time, compares the capacitance with the reference data, judges the distance between the human hand and the display operation panel according to the comparison result and outputs a corresponding sensing signal.
Therefore, the distance sensor is formed by adopting the induction chip with the model of IFA127 and the peripheral circuit thereof, the distance induction between the hand and the display operation panel is realized in a way of utilizing the capacitance induction principle, and the interference of an external remote control signal of the infrared remote control receiving device on the distance induction module can be effectively avoided, so that the distance sensor is suitable for a complex working condition environment in which the household appliance simultaneously has negative ion wind interference, power grid interference and infrared signal interference; and, through set up the electric charge amount that increases the response of induction antenna, can improve apart from the response sensitivity of response module.
Preferably: the shape of the induction antenna is a non-closed curve shape extending along the edge of the PCB board. Therefore, no extra space is needed for placing the induction antenna, and the problem of unattractive appearance caused by the exposed induction antenna is solved.
Preferably: the induction antenna is formed by a copper foil arranged on the PCB, so that the copper foil of the induction antenna can be covered with copper when the PCB is produced, the production process of the man-machine interaction equipment is simple, and the cost is saved.
As a preferred embodiment of the present invention: the functional device comprises a touch key;
when the main controller system judges that the sensing signal output by the distance sensing module is smaller than a preset proximity distance threshold value, the display screen is controlled to improve the display brightness, and the touch key is controlled to be lightened;
and when the main controller system judges that the sensing signal output by the distance sensing module is above the approaching distance threshold, the display screen is controlled to reduce the display brightness, and the touch key is controlled to be turned off.
Preferably: the functional device further comprises an atmosphere lamp;
when the main controller system judges that the sensing signal output by the distance sensing module is smaller than the approaching distance threshold, the atmosphere lamp is controlled to be turned on at the same time;
and when the main controller system judges that the sensing signal output by the distance sensing module is above the approaching distance threshold, the atmosphere lamp is also controlled to be turned off.
Preferably: the display operation panel is a colored transparent plate, so that the touch key and the atmosphere lamp can be hidden under the display operation panel when the touch key and the atmosphere lamp are turned off.
As a preferred embodiment of the present invention: the functional device comprises a WiFi module;
and when the master controller system judges that the sensing signal output by the distance sensing module is within a preset warning distance threshold value, warning information is sent to a user mobile phone terminal through the WiFi module. Therefore, when the household appliance is in an unattended state and when a person approaches to the alarm distance within the threshold value, the alarm can be sent to the user through the WiFi module, so that the purpose of monitoring the unattended household appliance is achieved without increasing extra cost, and a mobile phone terminal user connected with the household appliance is reminded.
Compared with the prior art, the invention has the following beneficial effects:
firstly, when a user wants to perform human-computer interaction with a household appliance through a display operation panel, the distance between the hand of the user and the display operation panel can be sensed through the distance sensing module, so that the main controller system can control the display screen and the functional device to enter corresponding working states, and the human-computer interaction experience of the user can be improved;
in addition, aiming at the problem that the concentration of the negative ion wind blown out by the negative ion generator is very high due to the deceleration at the air outlet, so that the electric field at the position of the main control module close to the air outlet is greatly changed, and the induction accuracy of the distance induction module is greatly influenced, the main control module is arranged in the closed inner cavity formed by enclosing the display operation panel and the plastic electric control box, so that the negative ion wind is blocked, and the distance induction module is prevented from being influenced by the electric charges generated by the ionization of the negative ion wind in the air; in addition, the effective average value of the induction signals is used as a basis for controlling the working states of the display screen and the functional device, so that the anti-interference capability of the basis for controlling the working states is improved; therefore, the invention can ensure the sensing accuracy of the distance sensing module, ensure that the main controller system can accurately control the working states of the display screen and the functional device, and is suitable for complex working condition environments with negative ion wind interference and power grid interference of household appliances, such as household appliance products of air purifiers, cabinet air conditioners and the like.
Secondly, aiming at the household appliances which are limited by the internal structural layout and need to make the negative ion wind firstly pass through the plastic electric control box with the built-in main control module and then blow out from the air outlet, the invention can avoid the negative ion wind entering the plastic electric control box from the gap between the plastic electric control box and the display operation panel by making the negative ion wind pass through the plastic electric control box along the obliquely arranged side surface, thereby preventing the false triggering of the main controller system on the display screen and the functional devices caused by the influence on the sensing sensitivity of the distance sensing module and preventing the main controller system from being damaged under serious conditions.
Thirdly, the distance sensor is formed by adopting the sensing chip with the model of IFA127 and a peripheral circuit thereof, the distance sensing between a human hand and the display operation panel is realized in a way of utilizing the capacitance sensing principle, and the interference of an external remote control signal of the infrared remote control receiving device on the distance sensing module can be effectively avoided, so that the distance sensor is suitable for complex working condition environments in which the household appliances have negative ion wind interference, power grid interference and infrared signal interference at the same time; and, through set up the electric charge amount that increases the response of induction antenna, can improve apart from the response sensitivity of response module.
Fourthly, the working states of the display screen, the touch keys and the atmosphere lamp are correspondingly controlled according to the comparison and judgment of the sensing signal and the preset proximity distance threshold value, and the human-computer interaction experience of the user is greatly improved.
Drawings
The invention is described in further detail below with reference to the following figures and specific examples:
FIG. 1 is a schematic structural diagram of a human-computer interaction device according to the present invention;
FIG. 2 is a schematic structural diagram of a main control module according to the present invention;
fig. 3 is a schematic circuit diagram of the distance sensor of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and the accompanying drawings to help those skilled in the art to better understand the inventive concept of the present invention, but the scope of the claims of the present invention is not limited to the following embodiments, and all other embodiments obtained without inventive efforts by those skilled in the art will fall within the scope of the present invention without departing from the inventive concept of the present invention.
Example one
As shown in fig. 1 and 2, the invention discloses a human-computer interaction device suitable for a complex household appliance environment, which comprises a display operation panel 1 arranged on a household appliance shell, wherein a negative ion generator and a main control module 4 are arranged in the household appliance shell, and an air outlet of the negative ion generator is positioned at a side position where the display operation panel 1 is relatively close to each other; the main control module 4 comprises a PCB (printed circuit board) 2, and a main controller system, a distance sensing module 3, a display screen 7 and functional devices which are arranged on the PCB 2, wherein the distance sensing module 3 is used for sensing the distance between a human hand and the display operation panel 1, and the main controller system can control the working states of the display screen 7 and the functional devices according to sensing signals output by the distance sensing module 3; the main controller system can be composed of a single chip microcomputer, an MCU and other existing control chips and peripheral circuits thereof.
The method is characterized in that:
a plastic electric control box 5 is fixed inside the household appliance shell, the display operation panel 1 covers the opening of the plastic electric control box 5, and the main control module 4 is arranged in a closed inner cavity formed by the display operation panel 1 and the plastic electric control box 5 in an enclosing manner;
the main controller system continuously samples the induction signal output by the distance induction module 3 to obtain N sampling samples, wherein N is more than or equal to 2, calculates the sampling average value of the N sampling samples, and calculates the average value of the rest sampling samples after eliminating the sampling samples of the N sampling samples, the deviation of which from the sampling average value is more than a preset deviation threshold value, and records the average value as the effective average value of the induction signal; the main controller system takes the effective average value of the induction signals as a basis for controlling the working states of the display screen 7 and the functional devices.
Therefore, when a user wants to perform human-computer interaction with the household appliance through the display operation panel 1, the distance between the hand of the user and the display operation panel 1 can be sensed through the distance sensing module 3, so that the main controller system can control the display screen 7 and the functional device to enter the corresponding working state, and the human-computer interaction experience of the user can be improved;
in addition, aiming at the problem that the concentration of the negative ion wind blown out by the negative ion generator is very high due to the deceleration at the air outlet, so that the electric field at the position of the main control module 4 close to the air outlet is greatly changed, and the induction accuracy of the distance induction module 3 is greatly influenced, the main control module 4 is arranged in the closed inner cavity formed by enclosing the display operation panel 1 and the plastic electric control box 5, so that the negative ion wind is blocked, and the distance induction module 3 is prevented from being influenced by the electric charges generated by the ionization of the negative ion wind in the air; in addition, the effective average value of the induction signals is used as a basis for controlling the working states of the display screen 7 and the functional devices, so that the anti-interference capability of the basis for controlling the working states is improved; therefore, the invention can ensure the sensing accuracy of the distance sensing module 3, ensure that the main controller system can accurately control the working states of the display screen 7 and the functional devices, and is suitable for complex working condition environments with negative ion wind interference and power grid interference of household appliances, such as household appliance products of air purifiers, cabinet air conditioners and the like.
The above is a basic implementation manner of the first embodiment, and further optimization, improvement and limitation may be performed on the basis of the basic implementation manner:
preferably: the area of the opening of the plastic electric control box 5 is larger than the area 5a of the bottom surface of the plastic electric control box, so that the side surface 5b which is obliquely arranged is formed on the plastic electric control box 5, and the negative ion wind which is blown out from the back of the plastic electric control box 5 by the negative ion generator can pass through the plastic electric control box 5 along the side surface 5b of the plastic electric control box 5 and then is blown out from the air outlet. Therefore, for the household appliance which is limited by the internal structural layout and needs to enable negative ion wind to pass through the plastic electric control box 5 with the built-in main control module 4 and then blow out from the air outlet, the negative ion wind passes through the plastic electric control box 5 along the side face 5b which is obliquely arranged, so that the negative ion wind can be prevented from entering the plastic electric control box 5 from a gap between the plastic electric control box 5 and the display operation panel 1, the influence on the sensing sensitivity of the distance sensing module 3 is prevented, the false triggering of the main controller system on the display screen 7 and functional devices is prevented, and the damage of the main controller system under severe conditions is prevented.
Example two
On the basis of the first embodiment, the second embodiment also adopts the following preferred embodiments:
as shown in fig. 3, the household appliance housing is provided with an infrared remote control receiving device; the distance sensing module 3 is composed of a distance sensor 3-1 and a sensing antenna 3-2, and the distance sensor 3-1 is composed of a sensing chip IC2 with the model number of IFA127 and a peripheral circuit thereof.
The working principle of the distance sensor 3-1 is as follows:
at the moment of powering on the man-machine interaction equipment, the induction chip IC2 immediately samples the capacitance on the induction antenna 3-2, detects the electric field intensity of the current environment, and generates original reference data as a comparison reference; when a human hand approaches the display operation panel 1 where the distance sensor 3-1 is located, the electric field intensity changes, so that the capacitance on the sensing antenna 3-2 changes; therefore, in the enabled state of the distance detection function, the sensing chip IC2 samples the capacitance of the sensing antenna in the current environment in real time, compares the capacitance with the reference data, determines the distance between the human hand and the display operation panel 1 according to the comparison result, and outputs a corresponding sensing signal.
Therefore, the distance sensor 3-1 is formed by adopting the induction chip IC2 with the model of IFA127 and a peripheral circuit thereof, so that the distance induction between a human hand and the display operation panel 1 is realized by utilizing the capacitance induction principle, and the interference of an external remote control signal of the infrared remote control receiving device on the distance induction module 3 can be effectively avoided, so that the distance sensor is suitable for complex working condition environments with the simultaneous existence of negative ion wind interference, power grid interference and infrared signal interference in household appliances; in addition, the induction antenna 3-2 is arranged to increase the amount of induced electric charge, so that the induction sensitivity of the distance induction module 3 can be improved.
The above is the basic implementation manner of the second embodiment, and further optimization, improvement and limitation can be made on the basis of the basic implementation manner:
preferably: the shape of the induction antenna 3-2 is a non-closed curve shape extending along the edge of the PCB board 2. Therefore, no extra space is needed for placing the induction antenna 3-2, and the problem of unattractive appearance caused by the exposed induction antenna 3-2 is solved.
Preferably: the induction antenna 3-2 is formed by a copper foil arranged on the PCB 2, so that copper cladding of the copper foil of the induction antenna 3-2 can be completed when the PCB 2 is produced, the production process of the man-machine interaction device is simple, and the cost is saved.
EXAMPLE III
On the basis of the first embodiment or the second embodiment, the third embodiment further adopts the following preferred embodiments:
the functional device comprises a touch key 6;
when the main controller system judges that the sensing signal output by the distance sensing module 3 is smaller than a preset proximity distance threshold, the display screen 7 is controlled to improve the display brightness, and the touch key 6 is controlled to be lightened;
and when the main controller system judges that the sensing signal output by the distance sensing module 3 is above the approaching distance threshold, controlling the display screen 7 to reduce the display brightness and controlling the touch key 6 to be turned off.
The above is the basic implementation of the third embodiment, and further optimization, improvement and limitation can be made on the basis of the basic implementation:
preferably: the functional device further comprises an atmosphere lamp;
when the main controller system judges that the sensing signal output by the distance sensing module 3 is smaller than the approaching distance threshold, the atmosphere lamp is controlled to be turned on at the same time;
and when the main controller system judges that the sensing signal output by the distance sensing module 3 is above the approaching distance threshold, the atmosphere lamp is also controlled to be turned off.
Preferably: the display operation panel 1 is a colored transparent plate, so that the touch key 6 and the atmosphere lamp can be hidden under the display operation panel 1 when the touch key and the atmosphere lamp are turned off.
Example four
On the basis of any one of the first to third embodiments, the fourth embodiment further adopts the following preferred embodiments:
the functional device comprises a WiFi module 8;
and when the master controller system judges that the sensing signal output by the distance sensing module 3 is within a preset warning distance threshold value, warning information is sent to a user mobile phone terminal through the WiFi module 8. Therefore, when the household appliance is in an unattended state and when a person approaches to the alarm distance within the threshold value, an alarm can be sent to the user through the WiFi module 8, so that the purpose of monitoring the unattended household appliance and reminding a mobile phone terminal user connected with the equipment in a mode without increasing extra cost is achieved.
The present invention is not limited to the above embodiments, and various other equivalent modifications, substitutions and alterations can be made without departing from the basic technical concept of the invention as described above, according to the common technical knowledge and conventional means in the field.
Claims (9)
1. A man-machine interaction device suitable for a complex household appliance environment comprises a display operation panel (1) arranged on a household appliance shell, wherein a negative ion generator and a main control module (4) are arranged inside the household appliance shell, and an air outlet of the negative ion generator is positioned at the side position of the display operation panel (1); the main control module (4) comprises a PCB (printed circuit board) (2), and a main controller system, a distance sensing module (3), a display screen (7) and a functional device which are arranged on the PCB (2), wherein the distance sensing module (3) is used for sensing the distance between a human hand and the display operation panel (1), and the main controller system can control the working states of the display screen (7) and the functional device according to a sensing signal output by the distance sensing module (3);
the method is characterized in that:
a plastic electric control box (5) is fixed inside the household appliance shell, the display operation panel (1) covers the opening of the plastic electric control box (5), and the main control module (4) is arranged in a closed inner cavity formed by enclosing the display operation panel (1) and the plastic electric control box (5);
the main controller system continuously samples the induction signals output by the distance induction module (3) to obtain N sampling samples, wherein N is more than or equal to 2, the sampling average value of the N sampling samples is calculated, and after the sampling samples with the deviation from the sampling average value larger than a preset deviation threshold value in the N sampling samples are removed, the average value of the rest sampling samples is calculated and recorded as the effective average value of the induction signals; the main controller system takes the effective average value of the induction signals as a basis for controlling the working states of the display screen (7) and the functional devices.
2. Human-computer interaction device adapted to a complex household appliance environment, according to claim 1, characterized in that: the area of the opening of the plastic electric control box (5) is larger than the area (5a) of the bottom surface of the plastic electric control box, so that the side surface (5b) which is obliquely arranged is formed on the plastic electric control box (5), and the negative ion wind blown out from the back of the plastic electric control box (5) by the negative ion generator can pass through the plastic electric control box (5) along the side surface (5b) of the plastic electric control box (5) and then is blown out from the air outlet.
3. Human-computer interaction device adapted to a complex household appliance environment, according to claim 1 or 2, characterized in that: the household appliance shell is provided with an infrared remote control receiving device; the distance sensing module (3) is composed of a distance sensor (3-1) and a sensing antenna (3-2), and the distance sensor (3-1) is composed of a sensing chip (IC2) with the model number of IFA127 and a peripheral circuit thereof.
4. Human-computer interaction device adapted to a complex household appliance environment, according to claim 3, characterized in that: the shape of the induction antenna (3-2) is a non-closed curve shape extending along the edge of the PCB (2).
5. Human-computer interaction device adapted to a complex household appliance environment, according to claim 4, characterized in that: the induction antenna (3-2) is formed by copper foil arranged on the PCB (2).
6. Human-computer interaction device adapted to a complex household appliance environment, according to claim 1 or 2, characterized in that: the functional device comprises a touch key (6);
when the main controller system judges that the sensing signal output by the distance sensing module (3) is smaller than a preset proximity distance threshold value, the display screen (7) is controlled to improve the display brightness, and the touch key (6) is controlled to be lightened;
and when the main controller system judges that the sensing signal output by the distance sensing module (3) is above the approaching distance threshold, the display screen (7) is controlled to reduce the display brightness, and the touch key (6) is controlled to be turned off.
7. Human-computer interaction device adapted to a complex household appliance environment, according to claim 6, characterized in that: the functional device further comprises an atmosphere lamp;
when the main controller system judges that the sensing signal output by the distance sensing module (3) is smaller than the proximity distance threshold, the atmosphere lamp is controlled to be turned on at the same time;
and when the main controller system judges that the sensing signal output by the distance sensing module (3) is above the approaching distance threshold, the atmosphere lamp is also controlled to be turned off.
8. Human-computer interaction device adapted to a complex household appliance environment, according to claim 7, characterized in that: the display operation panel (1) is a colored transparent plate.
9. Human-computer interaction device adapted to a complex household appliance environment, according to claim 1 or 2, characterized in that: the functional device comprises a WiFi module (8);
and when the master controller system judges that the sensing signal output by the distance sensing module (3) is within a preset warning distance threshold value, warning information is sent to a user mobile phone terminal through the WiFi module (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110885796.3A CN113839660A (en) | 2021-08-03 | 2021-08-03 | Man-machine interaction equipment suitable for complex household appliance environment |
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