CN209821809U - Infrared touch screen and electronic equipment - Google Patents
Infrared touch screen and electronic equipment Download PDFInfo
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- CN209821809U CN209821809U CN201920985620.3U CN201920985620U CN209821809U CN 209821809 U CN209821809 U CN 209821809U CN 201920985620 U CN201920985620 U CN 201920985620U CN 209821809 U CN209821809 U CN 209821809U
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Abstract
The utility model provides an infrared touch screen, include: a touch screen body; the infrared emission devices are positioned on the first side edge of the touch screen body, and the arrangement mode that the arrangement density of the infrared emission devices in the middle is smaller than that of the infrared emission devices at the two ends is adopted on the first side edge; the plurality of infrared receiving devices are positioned on a second side edge of the touch screen body, which corresponds to the infrared transmitting devices; wherein, the first side edge is parallel to the second side edge. This application is through the mode of arranging that sets up infrared transmitting device, adopts the density of arranging that the density is less than the density of arranging at both ends in the middle of the first side edge adoption, realizes comprehensive reasonable overall arrangement to just can arrange the distance in the place that optical network covered completely and widely some, just can encrypt the infrared lamp at optical network covered incomplete place or blind area and fill, realize that comprehensive non-blind area infrared optical network covers, reduce cost improves user experience. The application also provides the electronic equipment with the beneficial effects.
Description
Technical Field
The application relates to the technical field of touch control, in particular to an infrared touch screen and electronic equipment.
Background
In the commercial display touch industry, the infrared sensing technology touch screen is the mainstream of the application. The infrared touch screen controls related digital logic devices through a microcontroller to control infrared receiving tubes and infrared transmitting tubes distributed in X, Y directions around the touch screen, the infrared tubes are in one-to-one correspondence arrangement on the surface of the touch screen, the infrared receiving tubes are scanned and addressed by continuously switching the transmitting and receiving lamps to form an optical network formed by infrared rays, when an object (a finger, a glove or any touch object) enters the infrared optical network to block infrared transmitting and receiving at a certain position, the intensity of infrared rays received by the receiving tubes in two directions transversely and vertically at the point can be changed, and the controller judges a touch point through calculation by acquiring the change condition of infrared signals blocked by infrared receiving.
The touch effect that decides infrared touch is exactly the optical network that the infrared light of the transmission of infrared lamp constitutes, when opaque object sheltered from, thereby the infrared ray optical network is sheltered from and shelters from the region through calculating and calculate the coordinate that shelters from the point and form the touch point, when arranging of infrared lamp is unreasonable, when the infrared optical network that forms does not cover whole touch screen surface, receive the response and just can not respond to sheltering from the region and form infrared optical network monitoring blind area, just can not be monitored when touching the object in the blind area, thereby can form the touch setting-out and can break line and touch no response and no touch point phenomenon.
In the prior art, infrared lamps are arranged at equal intervals, detection blind areas are reduced by reducing the distance between the infrared lamps, more infrared lamps are needed for a touch screen with the same size, and although an optical network of a formed infrared coverage surface is dense, the cost is increased.
Therefore, how to provide a solution to the above technical problem is a problem that needs to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The application aims at providing an infrared touch screen and electronic equipment, can realize that there is not blind area infrared optical network of comprehensive covers, reduce cost improves user experience. The specific scheme is as follows:
the application provides an infrared touch screen, include:
a touch screen body;
the infrared emitting devices are positioned on the first side edge of the touch screen body, and the arrangement mode that the arrangement density of the infrared emitting devices in the middle is smaller than that of the infrared emitting devices at two ends is adopted on the first side edge;
the plurality of infrared receiving devices are positioned on a second side edge of the touch screen body, which corresponds to the infrared emitting devices; wherein the first side edge is parallel to the second side edge.
Optionally, each of the infrared receiving devices is arranged on the second side edge in an arrangement manner that the arrangement density in the middle is smaller than that at the two ends.
Optionally, the infrared emitting device is an infrared emitting lamp.
Optionally, the infrared emitting device is an infrared emitting tube.
Optionally, sliding grooves are formed in the periphery of the inner side of the touch screen body, and the infrared emitting devices and the infrared receiving devices slide on the sliding grooves through the grooves.
Optionally, the touch screen body is a curved touch screen body.
Optionally, the method further includes:
a master control circuit;
the transmitting circuit is connected with the infrared transmitting device and the main control circuit;
the sampling circuit is connected with the infrared receiving device;
the analog-to-digital conversion circuit is connected with the sampling circuit;
and the receiving circuit is connected with the infrared receiving device and the analog-to-digital conversion circuit.
Optionally, the method further includes:
the input end of the filter circuit is connected with the output end of the sampling circuit;
the input end of the amplifying circuit is connected with the output end of the filter circuit, and the output end of the amplifying circuit is connected with the analog-to-digital conversion circuit.
The application provides an electronic equipment, includes as above-mentioned infrared touch-sensitive screen.
The application provides an infrared touch screen, include: a touch screen body; the infrared emission devices are positioned on the first side edge of the touch screen body, and the arrangement mode that the arrangement density of the infrared emission devices in the middle is smaller than that of the infrared emission devices at the two ends is adopted on the first side edge; the plurality of infrared receiving devices are positioned on a second side edge of the touch screen body, which corresponds to the infrared transmitting devices; wherein, the first side edge is parallel to the second side edge.
It is thus clear that this application is through the mode of arranging that sets up infrared transmitting device, adopt the mode of arranging that the density of arranging in the middle of adopting at first side is less than the density of arranging at both ends, realize comprehensive reasonable overall arrangement, the distance that the infrared transmitting device was arranged in order to cover the full local infrared transmitting device of optical network is wider than the distance that the infrared transmitting device of the incomplete place of optical network cover or blind area was arranged, realize comprehensive non-blind area infrared optical network cover, the high cost problem that need increase infrared transmitting device is covered to realize comprehensive optical network when having avoided arranging infrared transmitting device at equidistant among the correlation technique, and therefore, the cost is reduced, and the user experience is improved. This application still provides an electronic equipment simultaneously and has above-mentioned beneficial effect, no longer gives unnecessary details here.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an infrared touch screen according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another infrared touch screen provided in the embodiment of the present application;
fig. 3 is a schematic structural diagram of another infrared touch screen provided in the embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the prior art, infrared lamps are arranged equidistantly, detection blind areas are reduced by reducing the distance between the infrared lamps, more infrared lamps are needed for a touch screen with the same size, although the optical network of the formed infrared coverage surface is dense, the cost is increased, and in order to solve the technical problems, the infrared transmitting devices are arranged in an arrangement mode, the arrangement mode that the arrangement density in the middle is smaller than that at two ends is adopted at the first side edge, so that the comprehensive and reasonable layout is realized, the distance of the infrared transmitting devices arranged at the positions with full optical network coverage is wider than that of the infrared transmitting devices arranged at the positions with incomplete optical network coverage or blind areas, the comprehensive non-blind-area infrared optical network coverage is realized, and the problem of high cost of the infrared transmitting devices required to realize the comprehensive optical network coverage when the infrared transmitting devices are arranged at equal intervals in the related technology is solved, with reference to fig. 1 and fig. 1, a schematic structural diagram of an infrared touch screen provided in an embodiment of the present application includes:
a touch screen body 100;
the plurality of infrared emitting devices 200 are located at the first side of the touch screen body 100, wherein the arrangement density of the infrared emitting devices 200 at the first side is lower than that at the two ends;
a plurality of infrared receiving devices 300 located at a second side of the touch screen body 100 corresponding to the infrared transmitting devices 200; wherein, the first side edge is parallel to the second side edge.
The touch screen body 100 is not limited in this embodiment, an LED screen or an OLED screen may be adopted, the size of the touch screen body 100 is not limited in this embodiment, and a user can select the screen by self-definition. Of course, the touch screen body 100 may be a planar screen or a curved screen, and when the touch screen body 100 is a curved screen, the curved angle is not limited in this embodiment, and the user may set the curved angle according to actual requirements. The user of the touch screen body 100 can select a commercially available product according to actual needs. Generally, the touch screen body 100 is square, and may be provided with a chamfer, so that the touch screen body 100 is provided with four sides. Further, a fixed frame is disposed on the periphery of the touch screen body 100.
In the related art, since the infrared transmitters 200 and the infrared receivers 300 are arranged at equal intervals, the optical network in the middle is covered completely, but the optical network at the edge is not covered completely, and thus the present embodiment provides a technical means that the distance between the infrared transmitters 200 is a little wider at the place where the optical network covers completely, and the distance between the infrared transmitters 200 is a little closer at the place where the optical network covers incompletely, so as to realize the complete coverage of the optical network and improve the accuracy of signal reception. The infrared transmitting devices 200 are sequentially lighted one by one, and the optical network consisting of required infrared rays is simulated by calculating the difference of the transmitting angle and the receiving angle, so that the monitoring is carried out on the premise that the infrared optical network completely covers the non-touch monitoring blind area. According to the size of the touch screen body 100, the different distance intervals between the lamp infrared emitting device 200 and the lamp infrared emitting device 200 can be calculated according to the angle, and the user can also set the distance in a self-defined mode.
The size to different touch-sensitive screen bodies 100 generally can be provided with different certain quantity's infrared transmitting device 200 and infrared receiving device 300 at four sides, and what the correlation technique adopted is equidistant setting, but can have the blind area, and the intermediate position infrared ray of touch-sensitive screen body 100 is intensive, but the marginal position infrared ray of touch-sensitive screen body 100 is sparse, consequently, the blind area easily appears in marginal position, further influences the collection of signal, finally causes the distortion of image.
Therefore, the first side edge of the touch screen body 100 of the present embodiment is provided with the plurality of infrared emitting devices 200, and the arrangement density of the infrared emitting devices 200 in the middle is smaller than that at the two ends, so that the blind area can be reduced. In this embodiment, the number of the ir transmitting devices 200 and the number of the ir receiving devices 300 are not limited, and can be set by the user. In this embodiment, the arrangement density of the middle infrared emitting devices 200 and the arrangement densities of the infrared emitting devices 200 at the two ends are not limited, and it is sufficient if the arrangement density in the middle is smaller than the arrangement densities at the two ends and the dead zones at the edge positions can be reduced. Dividing the infrared emission devices 200 in the first side into a middle portion, a first end portion and a second end portion, wherein the arrangement pitch of the infrared emission devices 200 in the middle portion is uniform, and the pitch between adjacent infrared emission devices 200 is within a first preset range; the arrangement intervals of the infrared emitting devices 200 at the first end part are uniform, and the intervals between the adjacent infrared emitting devices 200 are within a second preset range; the arrangement intervals of the infrared emitting devices 200 at the second end part are uniform, and the interval between the adjacent infrared emitting devices 200 is within a third preset range; the minimum value in the first preset range is greater than the maximum value in the second preset range, and the minimum value in the first preset range is greater than the maximum value in the third preset range. Preferably, the arrangement density of the middle of each infrared emitting device 200 at the first side is smaller than that of the two ends, specifically, the distance between two adjacent infrared emitting devices 200 from the two end points of the first side gradually increases, for example, when the infrared emitting devices 200 are A, B, C, D, E, F, G in sequence, the distance A, B is a, the distance B, C is b, the distance C, D is c, the distance D, E is d, the distance E, F is e, and the distance F, G is f, as a < b < c and f < e < d. Of course, other forms are also possible, and the description of this embodiment is not repeated. When the first side edge is a long side edge, the corresponding second side edge is a long side edge parallel to the first side edge; when the first side edge is a short edge, the corresponding second side edge is a short edge parallel to the first side edge.
The infrared emitting device 200 emits infrared rays so that the infrared receiving device 300 collects information, the infrared emitting device 200 and the infrared receiving device 300 used in the infrared touch screen have a certain angle, for example, the infrared emitting device 200 has a certain emitting angle, and the infrared receiving device 300 also has a certain receiving angle, in this embodiment, the emitting angle and the receiving angle are not limited, and only the parallel side is set to receive or emit, of course, the adjacent side may also be set to receive or emit, and please refer to fig. 1 for the parallel side.
Referring to fig. 2 for the form of the adjacent side and the parallel side, fig. 2 is a schematic structural diagram of another infrared touch screen provided in the embodiment of the present application, and it can be seen that, by performing the two-side setting, the edge portion of the infrared touch screen is further covered, so that the existence of the blind area is reduced, and therefore, the existence of the edge area can be reduced while the cost is balanced.
The infrared emitting device 200 is not limited in this embodiment, and may be an infrared emitting lamp or an infrared emitting tube, which is commercially available.
A plurality of infrared receiving devices 300 located at a second side of the touch screen body 100 corresponding to the infrared transmitting devices 200; wherein, the first side edge is parallel to the second side edge.
Thereby the optical network that the touch-sensitive screen main part 100 outside lines formed covers comprehensively and touches and does not have any blind area, and the infrared lamp that same size was used is less relatively, has reduced material cost, and is further, owing to use infrared emitter 200 and infrared receiving arrangement 300 and material cost are few, and the PCB overall arrangement wiring that draws in the aspect of the circuit is just simple reliable relatively.
Based on above-mentioned technical means, this embodiment is through the mode of arranging that sets up infrared transmitting device 200, adopt the mode of arranging that the density of arranging in the middle of adopting at first side is less than the density of arranging at both ends, realize comprehensive reasonable overall arrangement, just can arrange apart from wide a little in the place that optical network covers entirely, infrared lamp just can be encrypted to fill in the place that optical network covers incompletely or blind area, realize comprehensive non-blind area infrared optical network cover, the high cost problem that need increase infrared transmitting device 200 in order to realize comprehensive optical network cover when equidistant infrared transmitting device 200 of arranging among the correlation technique has been avoided, and therefore, the cost is reduced, and user experience is improved.
Further, each infrared receiving device 300 is arranged at the second side edge in an arrangement manner that the arrangement density in the middle is smaller than that at the two ends, specifically referring to fig. 3, fig. 3 is a schematic structural diagram of another infrared touch screen provided in this embodiment of the present application, it can be seen that a reasonable layout is achieved, the coverage of the optical network at the edge position is improved, and the accuracy of signal reception is improved.
Further, the infrared emission device 200 is an infrared emission lamp.
Further, the infrared emission device 200 is an infrared emission tube.
Further, sliding grooves are formed in the periphery of the inner side of the touch screen body 100, and each infrared emitting device 200 and each infrared receiving device 300 slide on the sliding grooves through a groove. The infrared transmitting device and the infrared receiving device are convenient to install through the sliding groove, and later maintenance is convenient.
Further, the touch screen body 100 is a curved touch screen body. In this embodiment, the curved touch screen body is not limited, and the user may make a commercially available choice. The curved touch screen body is convenient for users to select, and actual requirements of the users are met.
Further, the method also comprises the following steps:
a master control circuit;
the transmitting circuit is connected with the infrared transmitting device 200 and the main control circuit;
a sampling circuit connected to the infrared receiving device 300;
the analog-to-digital conversion circuit is connected with the sampling circuit;
and a receiving circuit connected with the infrared receiving device 300 and the analog-to-digital conversion circuit.
The transmitting circuit is used for determining the infrared transmitting device 200 to drive the infrared transmitting device 200 to sequentially transmit infrared rays, the receiving circuit is used for gating the infrared receiving devices 300 to start the infrared receiving devices 300 to receive infrared rays, the infrared receiving devices 300 convert the received infrared rays into current signals, the current signals are converted into voltage signals through the sampling circuit, the analog-to-digital conversion circuit converts the voltage signals into digital signals and inputs the digital signals into the main control circuit, the main control circuit receives the digital signals and sends the digital signals to a CPU or other processing units to calculate to determine the position of a touch point, the main control circuit controls the transmitting circuit and the receiving circuit according to the processing result, and then the infrared transmitting device 200 and the infrared receiving device 300 are driven through the transmitting circuit and the receiving circuit.
Based on the technical scheme, the transmission of signals is realized through the electric connection between the circuits, and the signals are conveniently processed so as to be displayed on the infrared touch screen.
Further, the method also comprises the following steps:
the input end of the filter circuit is connected with the output end of the sampling circuit;
the input end of the amplifying circuit is connected with the output end of the filter circuit, and the output end of the amplifying circuit is connected with the analog-to-digital conversion circuit.
Based on the above technical scheme, this embodiment can be more clear more accurate acquisition signal, further improvement signal acquisition's accuracy through setting up filter circuit and amplifier circuit.
In the following, an electronic device provided by an embodiment of the present application is introduced, and the electronic device described below and the infrared touch screen described above may be referred to correspondingly.
The embodiment provides an electronic device comprising the infrared touch screen.
The electronic device is not limited in this embodiment, and may be an electronic tablet, an electronic drawing board, or other devices.
Since the embodiment of the electronic device portion corresponds to the embodiment of the infrared touch screen portion, please refer to the description of the embodiment of the infrared touch screen portion for the embodiment of the electronic device portion, which is not repeated here.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (9)
1. An infrared touch screen, comprising:
a touch screen body;
the infrared emitting devices are positioned on the first side edge of the touch screen body, and the arrangement mode that the arrangement density of the infrared emitting devices in the middle is smaller than that of the infrared emitting devices at two ends is adopted on the first side edge;
the plurality of infrared receiving devices are positioned on a second side edge of the touch screen body, which corresponds to the infrared emitting devices; wherein the first side edge is parallel to the second side edge.
2. The infrared touch screen according to claim 1, wherein the infrared receiving devices are arranged on the second side edge in an arrangement manner that the arrangement density in the middle is smaller than that at both ends.
3. The infrared touch screen of claim 1, wherein the infrared emitting device is an infrared emitting lamp.
4. The infrared touch screen of claim 1, wherein the infrared emitting device is an infrared emitting tube.
5. The infrared touch screen of claim 1, wherein sliding grooves are formed around the inner side of the touch screen body, and each infrared emitting device and each infrared receiving device slide on the sliding grooves through a groove.
6. The infrared touch screen of claim 1, wherein the touch screen body is a curved touch screen body.
7. The infrared touch screen of any one of claims 1 to 6, further comprising:
a master control circuit;
the transmitting circuit is connected with the infrared transmitting device and the main control circuit;
the sampling circuit is connected with the infrared receiving device;
the analog-to-digital conversion circuit is connected with the sampling circuit;
and the receiving circuit is connected with the infrared receiving device and the analog-to-digital conversion circuit.
8. The infrared touch screen of claim 7, further comprising:
the input end of the filter circuit is connected with the output end of the sampling circuit;
the input end of the amplifying circuit is connected with the output end of the filter circuit, and the output end of the amplifying circuit is connected with the analog-to-digital conversion circuit.
9. An electronic device characterized by comprising the infrared touch screen according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985620.3U CN209821809U (en) | 2019-06-27 | 2019-06-27 | Infrared touch screen and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920985620.3U CN209821809U (en) | 2019-06-27 | 2019-06-27 | Infrared touch screen and electronic equipment |
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| CN209821809U true CN209821809U (en) | 2019-12-20 |
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| CN201920985620.3U Active CN209821809U (en) | 2019-06-27 | 2019-06-27 | Infrared touch screen and electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111063137A (en) * | 2019-12-30 | 2020-04-24 | 中祖建设安装工程有限公司 | Fire fighting access monitoring method and system |
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2019
- 2019-06-27 CN CN201920985620.3U patent/CN209821809U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111063137A (en) * | 2019-12-30 | 2020-04-24 | 中祖建设安装工程有限公司 | Fire fighting access monitoring method and system |
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