CN107704139B - Touch sensing device and touch sensing method - Google Patents
Touch sensing device and touch sensing method Download PDFInfo
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- CN107704139B CN107704139B CN201711089206.6A CN201711089206A CN107704139B CN 107704139 B CN107704139 B CN 107704139B CN 201711089206 A CN201711089206 A CN 201711089206A CN 107704139 B CN107704139 B CN 107704139B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
- G06F3/04817—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance using icons
Abstract
The invention provides a touch sensing device and a touch sensing method, wherein the touch sensing device comprises: the device comprises a metal surface shell, a light blocking mould and an optical signal processing circuit; the light blocking mold is positioned between the metal surface shell and the optical signal processing circuit; a metal face shell provided with at least one inlet and at least one display icon; the light blocking mold is provided with at least two transmission channels; each entrance corresponds to one transmission channel, and the incident light signal can reach the optical signal processing circuit through the transmission channel corresponding to the entrance; each display icon corresponds to one transmission channel, and the output optical signal sent by the optical signal processing circuit can light up the display icon through the transmission channel corresponding to the display icon; and the optical signal processing circuit is used for sensing each incident optical signal, determining a control command of the intelligent household appliance according to each incident optical signal, controlling the intelligent household appliance main body to operate according to the control command, and sending out at least one output optical signal so as to lighten at least one display icon. The invention can improve the user experience.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a touch sensing device and a touch sensing method.
Background
With the development of science and technology, the intellectualization of household appliances becomes the trend of the development of the current household appliance industry, and the touch sensing device in the intelligent household appliance becomes the key for realizing the intellectualization of the household appliances.
Generally, a touch sensing device in an intelligent appliance generates an electrical signal after receiving a touch of a user, and then transmits the electrical signal to the intelligent appliance to execute a command of the user.
However, the shell of most intelligent household appliances is metal, can produce shielding effect to the signal of telecommunication, can influence the user and operate intelligent household appliances through touch induction device, therefore has reduced user experience.
Disclosure of Invention
The embodiment of the invention provides a touch sensing device and a touch sensing method, which can improve user experience.
In a first aspect, an embodiment of the present invention provides a touch sensing apparatus, including: the device comprises a metal surface shell, a light blocking mould and an optical signal processing circuit;
the light blocking mold is positioned between the metal surface shell and the optical signal processing circuit;
the metal surface shell is provided with at least one inlet and at least one display icon;
the light blocking mould is provided with at least two transmission channels;
each entrance corresponds to one transmission channel, and an incident optical signal entering from the entrance can reach the optical signal processing circuit through the transmission channel corresponding to the entrance;
each display icon corresponds to one transmission channel, and the output optical signal sent by the optical signal processing circuit can light the display icon through the transmission channel corresponding to the display icon;
the optical signal processing circuit is used for sensing at least one incident optical signal entering from each entrance; and determining a control command of the intelligent household appliance according to the at least one incident light signal, controlling the intelligent household appliance main body to operate according to the control command, and sending out the at least one output light signal to lighten the at least one display icon.
Preferably, the metal surface shell is provided with a touch area and a display area;
the touch area is provided with at least one through hole, and at least one inlet is formed by utilizing the through hole;
the display area is provided with at least one micropore, and at least one display icon is formed by utilizing the at least one micropore.
Preferably, the optical signal processing circuit includes: the system comprises at least one light source, at least one photosensitive sensor, a touch sensing chip and a display system control chip;
each photosensitive sensor corresponds to one inlet and is used for sensing the optical signal intensity of the incident optical signal;
each display icon corresponds to at least one light source, and each light source is used for sending out the output optical signal;
the touch sensing chip is used for generating touch state information according to the intensity of the at least one optical signal sensed by each photosensitive sensor and sending the touch state information to the display system control chip;
the display system control chip is used for controlling at least one light source corresponding to each display icon to be displayed to send out at least one output light signal according to the touch state information so as to light up at least one display icon to be displayed; and determining the control command of the intelligent household appliance according to the touch state information, and controlling the intelligent household appliance main body to operate according to the control command.
Preferably, the light blocking mold is black in color.
Preferably, the metal surface shell and the light blocking mold are in gapless connection, and the light blocking mold and the optical signal processing circuit are in gapless connection.
Preferably, the diameter threshold of the micropores is 0.4-0.5 mm;
the diameter threshold of the perforations is 1.4-2 mm.
Preferably, further comprising: at least one auxiliary microwell;
each of the perforations corresponds to at least one of the auxiliary micro-holes.
Preferably, the light source includes: a surface-mounted light-emitting diode (LED) lamp.
Preferably, for each of the inlets, an incident light signal entering from a current inlet can reach the photosensitive sensor corresponding to the current inlet through the transmission channel corresponding to the current inlet;
for each display icon, an output optical signal emitted by at least one light source corresponding to the currently displayed icon can light the currently displayed icon through the transmission channel corresponding to the currently displayed icon.
In a second aspect, an embodiment of the present invention provides a touch sensing method based on the touch sensing apparatus in any one of the first aspects, including:
transmitting at least one incident light signal entering from at least one inlet on the metal surface shell to an optical signal processing circuit through a transmission channel provided by the light blocking mold;
sensing the at least one incident optical signal with the optical signal processing circuit;
determining a control command of the intelligent household appliance according to the at least one incident optical signal, controlling the intelligent household appliance main body to operate according to the control command, and sending out at least one output optical signal;
and utilizing the at least one output optical signal to light up at least one display icon on the metal surface shell through a transmission channel provided by the light blocking mold.
The embodiment of the invention provides a touch sensing device and a touch sensing method, wherein at least one incident light signal is transmitted to an optical signal processing circuit through at least one inlet on a metal surface shell and each transport channel corresponding to the at least one inlet on a light blocking mould; the optical signal processing circuit firstly senses each incident optical signal, then determines a control command of the intelligent household appliance according to each incident optical signal and sends out at least one output optical signal; each output optical signal emitted passes through at least one transmission channel corresponding to the display icon on the light blocking mold, and at least one display icon is lightened; and the determined control command is used for controlling the intelligent household appliance main body to operate according to the control command. Therefore, the embodiment of the invention is provided with the inlet on the metal surface shell and the transmission channel on the light blocking mould to construct the transmission path of the optical signal; the optical signal processing circuit converts the optical signal into a control command of the intelligent household appliance and lights up the display icon, so that the user sends an instruction to the intelligent household appliance without transmitting an electric signal, the metal shell of the intelligent household appliance is prevented from shielding the electric signal transmitted in the touch process, and the user experience is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a touch sensing apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another touch sensing apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another touch sensing apparatus according to an embodiment of the present invention;
FIG. 4 is a flowchart of a touch sensing method based on a touch sensing device according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a touch sensitive device according to one embodiment of the present invention;
fig. 6 is a schematic structural diagram of a touch sensing device disposed on an intelligent refrigerator according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a touch sensing apparatus, including: a metal surface shell 101, a light blocking module 102 and an optical signal processing circuit 103;
the light blocking mold 102 is positioned between the metal surface shell 101 and the optical signal processing circuit 103;
a metal front shell 101 provided with at least one inlet 104 and at least one display icon 105;
a light-blocking mold 102 provided with at least two transfer passages 106;
each entrance corresponds to one transmission channel 106, and the incident light signal entering from the entrance 104 can reach the optical signal processing circuit 103 through the transmission channel 106 corresponding to the entrance 104;
each display icon 105 corresponds to one transmission channel, and the output optical signal sent by the optical signal processing circuit 103 can light up the display icon 105 through the transmission channel 106 corresponding to the display icon 105;
the optical signal processing circuit 103 is configured to sense at least one incident optical signal entering from each entrance 104, determine a control command of the intelligent appliance according to the at least one incident optical signal, control the intelligent appliance main body to operate according to the control command, and send out at least one output optical signal to light at least one display icon 105.
The embodiment of the invention provides a touch sensing device, which is characterized in that at least one incident light signal is transmitted to an optical signal processing circuit through at least one inlet on a metal surface shell and each transportation channel corresponding to the at least one inlet on a light blocking mould; the optical signal processing circuit firstly senses each incident optical signal, then determines a control command of the intelligent household appliance according to each incident optical signal and sends out at least one output optical signal; each output optical signal emitted passes through at least one transmission channel corresponding to the display icon on the light blocking mold, and at least one display icon is lightened; and the determined control command is used for controlling the intelligent household appliance main body to operate according to the control command. Therefore, the embodiment of the invention is provided with the inlet on the metal surface shell and the transmission channel on the light blocking mould to construct the transmission path of the optical signal; the optical signal processing circuit converts the optical signal into the control command of the intelligent household appliance and lights up the display icon, so that the electric signal does not need to be transmitted in the process of sending the instruction to the intelligent household appliance by the user, the metal shell of the intelligent household appliance is prevented from shielding the electric signal transmitted in the touch process, and the user experience is improved.
As shown in fig. 2, an embodiment of the present invention provides another touch sensing apparatus,
a metal panel 101 provided with a touch area 201 and a display area 202;
a touch area 201 provided with at least one through hole 203, at least one inlet 104 being formed by the at least one through hole 203;
a display area 202 provided with at least one micro-hole 204, with which at least one display icon 105 is formed, using said at least one micro-hole 204.
In the embodiment of the invention, the display area and the touch area are divided in the metal surface shell, so that the operation of a user is facilitated. The perforation refers to a hole with the diameter larger than 1mm, and the micropore refers to a hole with the diameter smaller than 1 mm; for the inlet, only the light needs to be ensured to pass through, and the diameter of the hole does not need to be less than 1mm, so that the inlet is formed by the perforation; for the displayed icons, generally, the more holes one displayed icon contains, the better the display effect of the icon. The smaller the diameter of the hole, the larger the number of holes that can be provided in the display area, and the larger the number of holes that one display icon contains, so the display icon is formed with micropores.
As shown in fig. 3, an embodiment of the present invention provides yet another touch sensing apparatus,
an optical signal processing circuit 103 includes: at least one light source 1031, at least one light-sensitive sensor 1032, a touch-sensitive chip 1033, and a display system control chip 1034;
each photosensitive sensor 1032 corresponds to one of the inlets, and is used for sensing the optical signal intensity of the incident optical signal;
each of the display icons corresponds to at least one light source 1031, and each light source 1031 is configured to emit the output optical signal;
the touch sensing chip 1033 is configured to generate touch status information according to the intensity of the at least one optical signal sensed by each photosensitive sensor 1032, and send the touch status information to the display system control chip 1034;
the display system control chip 1034 is configured to control, according to the touch state information, at least one light source corresponding to each display icon 105 to be displayed to emit at least one output light signal, so as to light up at least one display icon 105 to be displayed; and determining the control command of the intelligent household appliance according to the touch state information, and controlling the intelligent household appliance main body to operate according to the control command.
In order to automatically display the operating parameters of the intelligent household appliance, each photosensitive sensor corresponds to one inlet, so that a user can select the operating parameters to be displayed by triggering different photosensitive sensors. In order to ensure that there is enough light signal to light each icon, at least one light source is provided for each display icon, and at least two light sources can be provided for display icons with larger occupied areas. The touch state information refers to the touch state of each entry, for example, if the entry No. 1 is blocked, the entry No. 1 is in the touch state; the entry 2 is not blocked, and then the entry 2 is in the non-touch state, and the touch state information is the "touch state, non-touch state". Data to be displayed can be determined according to the touch state information, for example, the refrigeration temperature is displayed when the No. 1 inlet is set to be in a touch state, and the current refrigeration temperature is 1 ℃; and when the touch state information is in a touch state or a non-touch state, controlling the light source to display the temperature of 1 ℃ in the display area. The control commands include: the operating parameters of the intelligent household appliance are changed, and the working mode of the intelligent household appliance is changed. For example, the user changes the freezing temperature of the intelligent refrigerator according to actual needs, or changes the intelligent refrigerator from a normal operation mode to an energy-saving operation mode.
In one embodiment of the present invention, the light-blocking mold is black in color.
Because a large amount of dust and small particles exist in the air, a scattering phenomenon exists in an optical signal in a propagation process, if light waves generated by scattering are transmitted from one transmission channel to another transmission channel, the intensity of an optical signal sensed by a photosensitive sensor corresponding to the other transmission channel is higher than the actual intensity of the optical signal, or a display icon corresponding to the other transmission channel is lightened. The light blocking mold is set to be black, so that light waves generated by scattering of light signals in the transmission channels can be effectively absorbed, and the mutual influence of the light signals among the transmission channels is prevented.
In an embodiment of the invention, there is no gap connection between the metal surface shell and the light blocking mold, and between the light blocking mold and the optical signal processing circuit.
By adopting gapless connection, the optical signals at two ends of the transmission channel only reach the display icon or the photosensitive sensor corresponding to the transmission channel, taking the transmission channel of the sensing area as an example, at the entrance of the optical signal, the entrance 1 is shielded, the entrance 2 is not shielded, and at this time, the touch information generated by the touch sensing chip should be in a 'touch state, a non-touch state'. If a gap exists between the metal surface shell and the light blocking mold, an incident light signal entering from the No. 2 inlet may be scattered to the No. 1 inlet, and at this time, the touch information generated by the touch sensing chip is in a non-touch state, namely a non-touch state, and finally the display result is affected. Similarly, if there is a gap between the optical signal processing circuit and the light blocking mold, the incident optical signal entering through the No. 2 inlet can be transmitted to the sensor corresponding to the No. 1 inlet through the gap, which also causes the touch information generated by the touch sensing chip to be incorrect, and finally causes the displayed data to be incorrect.
For the transmission channel of the display area, under the irradiation of the output optical signal, both the display icon No. 1 and the display icon No. 2 display 1, and when the light source corresponding to the display icon No. 1 emits an optical signal and the light source corresponding to the display icon No. 2 does not emit an optical signal, the displayed number should be "1". If a gap exists between the metal surface shell and the light blocking mold or a gap exists between the optical signal processing circuit and the light blocking mold, the output optical signal for lightening the No. 1 display icon can be scattered to the transmission channel corresponding to the No. 2 display icon, so that the No. 2 display icon is lightened, and the displayed number is '11'.
In one embodiment provided herein, the microwells have a threshold diameter of 0.4-0.5 mm; the diameter threshold of the perforations is 1.4-2 mm.
For the diameter of the micropores, the display effect determines the upper diameter limit of the micropores, and the production cost and process determine the lower diameter limit of the micropores. The smaller the pore diameter, the more pores per unit area, and the better the display effect, and in order to achieve a certain display effect, the pore diameter must be smaller than the upper limit. However, the smaller the pore size, the higher the process requirements and the resulting increase in production costs, and therefore the diameter of the micropores is greater than its lower limit. For the diameter of the perforation, the type of operation mode of the smart appliance determines the upper diameter limit of the perforation, and the sensitivity of the photosensitive sensor determines the lower diameter line limit of the perforation. Generally, the number of perforations is not lower than the number n of operation modes of the intelligent appliance, so the upper diameter limit of the perforations is sufficient to be able to set at least n perforations within the sensing area. For example, there are 3 operating modes for the smart appliance, and the number of corresponding perforations is 3, and the diameter of the perforation is to ensure that at least 3 perforations are provided in the sensing area. Since the smaller the aperture, the smaller the intensity of the optical signal sensed by the photosensor, the perforation diameter must ensure that the intensity of the optical signal sensed by the photosensor is within the sensitivity range of the photosensor.
In one embodiment provided by the present invention, further comprising: at least one auxiliary microwell;
each of the perforations corresponds to at least one of the auxiliary micro-holes.
Besides the light signal intensity sensed by the photosensitive sensor is ensured by adjusting the diameter of the perforation, at least one auxiliary micropore is arranged around the perforation. Because the auxiliary micropores are smaller, the intensity of incident light optical signals can be adjusted in a small range by arranging the auxiliary micropores, and compared with the diameter of the perforation, the method is more flexible and accurate.
In one embodiment, the light source includes: a surface-mounted light-emitting diode (LED) lamp.
Because the patch type LED lamp is easy to be small in size, the LED lamp can be configured for each display icon on a circuit board where the optical signal processing circuit is located, and the patch type LED lamp is suitable for icons in various shapes.
In one embodiment of the present invention, for each of the inlets, an incident optical signal entering from a current inlet can reach the photosensitive sensor corresponding to the current inlet through the transmission channel corresponding to the current inlet;
for each display icon, an output optical signal emitted by at least one light source corresponding to the currently displayed icon can light the currently displayed icon through the transmission channel corresponding to the currently displayed icon.
In the embodiment of the present invention, each transmission path of the incident light signal is unique, for example, the light signal enters the touch sensing device from the entrance No. 1, and the transmission path is the photosensitive sensor corresponding to the transmission channel corresponding to the entrance No. 1-the entrance No. 1, so as to ensure that the incident light signal at the entrance No. 1 does not affect the light signals in other transmission channels. Each transmission path of the output optical signal is also unique, for example, the optical signal is emitted to light the display icon No. 1, and the transmission path is the transmission channel corresponding to the light source corresponding to the display icon No. 1-the display icon No. 1, so that the output optical signal for lighting the display icon No. 1 is ensured not to influence the optical signals in other transmission channels.
As shown in fig. 4, an embodiment of the present invention provides a touch sensing method based on any one of the touch sensing apparatuses in the foregoing embodiments, including the following steps:
To better illustrate the structure of the touch sensing device according to the embodiment of the present invention, as shown in fig. 5, the embodiment of the present invention provides a cross-sectional view of the touch sensing device, wherein the cross-sectional view penetrates through the display area 202 and the touch area 201.
The cross-sectional view shows the structure as follows: the metal surface shell is 101, a through hole 203 and a micropore 204; a light blocking mold 102, a transfer passage 106; optical signal processing circuit 103, light source 1031, photosensor 1032, touch-sensitive chip 1033, and display system control chip 1034.
As shown in fig. 6, an embodiment of the present invention provides a schematic structural diagram of a touch sensing device disposed on an intelligent refrigerator,
the structure shown in fig. 6 is as follows: touch area 201, portal 104, display area 202, display icon 105, transmission channel 106, touch-sensitive chip 1033, and display system control chip 1034.
In the figure, the number "8" is composed of 3 horizontal display icons and 4 vertical display icons, and in the display area 202, 1 display icon is provided for each figure except for the number "8".
In actual operation, a user touches the inlet 104 in the touch area 201, and an incident light signal entering from the inlet 104 reaches the touch sensing chip 1033 through the transmission channel 106 corresponding to the inlet 104. After the touch sensing chip 1033 senses the incident light signal, touch state information is generated and sent to the display system control chip 1034 through a circuit between the touch sensing chip 1033 and the display system control chip 1034. The display system control chip 1034 determines the working mode of the intelligent refrigerator according to the touch state information and controls the intelligent refrigerator to operate in the working mode; meanwhile, the display system control chip 1034 lights the display icon 105 in the display area 202 through the transmission channel 106 corresponding to the display icon 105 according to the touch state information.
In summary, the embodiments of the present invention have at least the following advantages:
1. in one embodiment of the invention, at least one incident light signal is transmitted to the optical signal processing circuit through at least one inlet on the metal surface shell and each transport channel corresponding to the at least one inlet on the light blocking mold; the optical signal processing circuit firstly senses each incident optical signal, then determines a control command of the intelligent household appliance according to each incident optical signal and sends out at least one output optical signal; each output optical signal emitted passes through at least one transmission channel corresponding to the display icon on the light blocking mold, and at least one display icon is lightened; and the determined control command is used for controlling the intelligent household appliance main body to operate according to the control command. Therefore, the embodiment of the invention is provided with the inlet on the metal surface shell and the transmission channel on the light blocking mould to construct the transmission path of the optical signal; the optical signal processing circuit converts the optical signal into the control command of the intelligent household appliance and lights up the display icon, so that the electric signal does not need to be transmitted in the process of sending the instruction to the intelligent household appliance by the user, the metal shell of the intelligent household appliance is prevented from shielding the electric signal transmitted in the touch process, and the user experience is improved.
2. In one embodiment of the invention, the metal surface shell and the light blocking mold are arranged and the light blocking mold and the optical signal processing circuit are in gapless connection, so that optical signals at two ends of the transmission channel only reach the display icon or the photosensitive sensor corresponding to the transmission channel, and the accuracy of display data is ensured.
3. In one embodiment of the invention, the number of the micropores on the metal surface shell is determined by limiting the diameter of the micropores so as to improve the display effect.
4. In one embodiment of the invention, the perforation is limited and the auxiliary micropores are arranged, so that the light signal intensity of the incident light signal is flexibly controlled, the light signal intensity of the incident light signal is in the sensitivity range of the photosensitive sensor, and the display effect can be improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it is to be noted that: the above description is only a preferred embodiment of the present invention, and is only used to illustrate the technical solutions of the present invention, and not to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (7)
1. A touch-sensitive apparatus, comprising: the device comprises a metal surface shell, a light blocking mould and an optical signal processing circuit;
the light blocking mold is positioned between the metal surface shell and the optical signal processing circuit;
the metal surface shell is provided with at least one inlet and at least one display icon;
the light blocking mould is provided with at least two transmission channels;
each entrance corresponds to one transmission channel, and an incident optical signal entering from the entrance can reach the optical signal processing circuit through the transmission channel corresponding to the entrance;
each display icon corresponds to one transmission channel, and the output optical signal sent by the optical signal processing circuit can light the display icon through the transmission channel corresponding to the display icon;
the optical signal processing circuit is used for sensing at least one incident optical signal entering from each entrance; determining a control command of the intelligent household appliance according to the at least one incident optical signal, controlling the intelligent household appliance main body to operate according to the control command, sending out the at least one output optical signal, and lightening the at least one display icon;
the metal surface shell is provided with a touch area and a display area;
the touch area is provided with at least one through hole, and at least one inlet is formed by utilizing the through hole;
the display area is provided with at least one micropore, and at least one display icon is formed by utilizing the at least one micropore;
the diameter threshold of the micropores is 0.4-0.5 mm;
the diameter threshold of the perforation is 1.4-2 mm;
further comprising: at least one auxiliary microwell;
each of the perforations corresponds to at least one of the auxiliary micro-holes.
2. The apparatus of claim 1,
the optical signal processing circuit includes: the system comprises at least one light source, at least one photosensitive sensor, a touch sensing chip and a display system control chip;
each photosensitive sensor corresponds to one inlet and is used for sensing the optical signal intensity of the incident optical signal;
each display icon corresponds to at least one light source, and each light source is used for sending out the output optical signal;
the touch sensing chip is used for generating touch state information according to the intensity of the at least one optical signal sensed by each photosensitive sensor and sending the touch state information to the display system control chip;
the display system control chip is used for controlling at least one light source corresponding to each display icon to be displayed to send out at least one output light signal according to the touch state information so as to light up at least one display icon to be displayed; and determining the control command of the intelligent household appliance according to the touch state information, and controlling the intelligent household appliance main body to operate according to the control command.
3. The apparatus of claim 1,
the light blocking mold is black in color.
4. The apparatus of claim 1,
and the metal surface shell and the light blocking mould and the optical signal processing circuit are in gapless connection.
5. The apparatus of claim 2,
the light source, comprising: a surface-mounted light-emitting diode (LED) lamp.
6. The apparatus of claim 2,
for each entrance, the incident light signal entering from the current entrance can reach the photosensitive sensor corresponding to the current entrance through the transmission channel corresponding to the current entrance;
for each display icon, an output optical signal emitted by at least one light source corresponding to the currently displayed icon can light the currently displayed icon through the transmission channel corresponding to the currently displayed icon.
7. A touch sensing method based on the touch sensing apparatus of any one of claims 1 to 6, comprising:
transmitting at least one incident light signal entering from at least one inlet on the metal surface shell to an optical signal processing circuit through a transmission channel provided by the light blocking mold;
sensing the at least one incident optical signal with the optical signal processing circuit;
determining a control command of the intelligent household appliance according to the at least one incident optical signal, controlling the intelligent household appliance main body to operate according to the control command, and sending out at least one output optical signal;
and utilizing the at least one output optical signal to light up at least one display icon on the metal surface shell through a transmission channel provided by the light blocking mold.
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