CN114385024A - Method and system for detecting infrared touch module - Google Patents
Method and system for detecting infrared touch module Download PDFInfo
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- CN114385024A CN114385024A CN202011141368.1A CN202011141368A CN114385024A CN 114385024 A CN114385024 A CN 114385024A CN 202011141368 A CN202011141368 A CN 202011141368A CN 114385024 A CN114385024 A CN 114385024A
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- 238000001514 detection method Methods 0.000 claims description 29
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- 238000004590 computer program Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
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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
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic 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
- G06F3/03—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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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Abstract
The application provides a method and a system for inspecting an infrared touch module, the infrared rays emitted by a plurality of first infrared lamp tubes in the infrared touch module are partially shielded through a set shielding module, the intensity of the infrared rays of the corresponding first infrared lamp tubes received by a plurality of second infrared lamp tubes is determined, the first infrared lamp tubes with a certain depression angle or elevation angle are determined, and the direction needing to be adjusted is determined, so that the infrared touch module can be inspected, the infrared lamp tubes with the orientation needing to be adjusted in the infrared touch module are determined, the directions of the infrared rays emitted by all infrared lamp tubes of the infrared touch module can be stable, and the user experience is improved.
Description
Technical Field
The application relates to the technical field of electronics, in particular to a method and a system for detecting an infrared touch module.
Background
The infrared touch screen is a common display screen arranged in electronic equipment, infrared rays can be emitted on a display plane of the infrared touch screen in the electronic equipment, actions of a user touching the display screen are detected through changes of infrared signal intensity caused when the user touches the screen, and accordingly a position touched by the user is obtained, and the obtained position can be used for subsequent calculation.
In the prior art, an electronic device generally has a plurality of infrared light tubes disposed at each edge around a rectangular display screen, and the infrared light tube at one edge is configured to have a function of emitting infrared rays, and the infrared light tube at the other opposite edge is configured to have a function of receiving infrared rays, so as to implement transmission, reception and detection of infrared rays. Therefore, the orientation and angle of the infrared lamp directly affect the accuracy of the electronic device in touch detection.
However, in the prior art, due to various external factors such as production deviation and transportation deformation, when the orientation of the infrared lamp tube deviates, the multiple infrared lamp tubes arranged in the electronic device may directly cause a false touch, poor touch operation feeling of the user, and sound production of situations such as point loss and disconnection of the user in the touch control process, which greatly affects the user experience of the electronic device.
Disclosure of Invention
The application provides a method and a system for inspecting infrared touch modules, which are used for inspecting the infrared touch modules arranged around a display screen of electronic equipment in a production process and determining the infrared lamp tubes of which the orientation needs to be adjusted in the infrared touch modules, so that the directions of infrared rays emitted by all the infrared lamp tubes of the infrared touch modules can be relatively stable, thereby avoiding the sound production of situations such as mistaken touch, point loss, broken line and the like, improving the accuracy of detecting and positioning the touch of the user by the electronic equipment through an infrared technology, and further improving the user experience of the electronic equipment.
The first aspect of the application provides a detection system for an infrared touch module, which is used for detecting a plurality of first infrared lamp tubes in the infrared touch module, wherein the plurality of first infrared lamp tubes are arranged on a Printed Circuit Board (PCB), the direction of infrared rays emitted by the infrared touch module is a first direction, and the first direction is parallel to a plane where the PCB is located; the system comprises: the receiving module is arranged opposite to the first infrared lamp tubes and used for receiving the infrared rays emitted by the first infrared lamp tubes; the shielding module is arranged between the infrared touch module and the receiving module and is used for shielding the infrared rays emitted to the first direction by the plurality of first infrared lamp tubes; and the processing module is connected with the receiving module and used for determining to adjust the orientation directions of the first infrared lamp tubes according to the intensity of the infrared rays emitted by the first infrared lamp tubes received by the receiving module.
In an embodiment of the first aspect of the present application, the receiving module includes: the second infrared lamp tubes correspond to the first infrared lamp tubes one by one, and each second infrared lamp tube is used for receiving infrared rays emitted by the corresponding first infrared lamp tube.
In an embodiment of the first aspect of the present application, the blocking module is specifically disposed: and a space is reserved between the shielding module and the PCB.
In an embodiment of the first aspect of the present application, the processing module is further configured to control a separation distance between the shielding module and the PCB to switch between a first preset distance and a second preset distance.
In an embodiment of the first aspect of the present application, the processing module is specifically configured to, when a first preset distance exists between the shielding module and the PCB, obtain a first intensity of infrared rays emitted by the plurality of first infrared lamp tubes received by the receiving module; wherein a distance between the first direction and a plane where the PCB is located is smaller than the first preset distance; and determining that the direction of the first infrared lamp tube, of the plurality of first infrared lamp tubes, of which the first intensity of the emitted infrared rays is smaller than a first preset value is adjusted to the direction of the PCB.
In an embodiment of the first aspect of the present application, the processing module is specifically configured to, when a second preset distance exists between the shielding module and the PCB, obtain a second intensity of the infrared rays received by the receiving module and emitted by the plurality of first infrared lamp tubes; wherein a distance between the first direction and a plane where the PCB is located is greater than the second preset distance; and determining that the direction of the first infrared lamp tube, of the plurality of first infrared lamp tubes, of which the second intensity of the emitted infrared rays is greater than a second preset value is adjusted to the direction far away from the PCB.
In an embodiment of the first aspect of the present application, the shielding module includes: iron blocks or aluminum profiles, etc.
A second aspect of the present application provides a method for detecting an infrared touch module, which can be implemented by a processing module in a system provided in the first aspect of the present application, and is configured to detect a plurality of first infrared light tubes in the infrared touch module, where the plurality of first infrared light tubes are disposed on a printed circuit board PCB, a direction in which the infrared touch module emits infrared rays is a first direction, and the first direction is parallel to a plane where the PCB is located; the method comprises the following steps: acquiring the intensity of infrared rays emitted by the plurality of first infrared lamp tubes; the infrared rays emitted by the first infrared lamp tubes are partially shielded by the shielding module; and determining the direction of the plurality of first infrared lamp tubes to adjust according to the intensity of the infrared rays emitted by the plurality of first infrared lamp tubes.
In an embodiment of the second aspect of the present application, the determining, according to the intensity of the infrared rays emitted by the plurality of first infrared light tubes, the direction in which the plurality of first infrared light tubes face for adjustment includes: acquiring first intensity of infrared rays emitted by the plurality of first infrared lamp tubes when a first preset distance exists between the shielding module and the PCB; wherein a distance between the first direction and a plane where the PCB is located is smaller than the first preset distance; and determining the direction of the first infrared lamp tube, of which the first intensity of the infrared rays is smaller than a first preset value, facing the direction of the first infrared lamp tube, wherein the PCB is located.
In an embodiment of the second aspect of the present application, the determining, according to the intensity of the infrared rays emitted by the plurality of first infrared light tubes, the direction in which the plurality of first infrared light tubes face for adjustment includes: acquiring second intensity of infrared rays emitted by the plurality of first infrared lamp tubes when a second preset distance exists between the shielding module and the PCB; wherein a distance between the first direction and a plane where the PCB is located is greater than the second preset distance; and determining that the direction of the first infrared lamp tube, of the plurality of first infrared lamp tubes, of which the second intensity of the emitted infrared rays is greater than a second preset value is adjusted to the direction far away from the PCB.
In summary, in the inspection method and system for an infrared touch module provided in this embodiment, the set shielding module partially shields the infrared rays emitted by the first infrared lamps in the infrared touch module, and determines the first infrared lamps having a certain depression angle or elevation angle and the direction to be adjusted according to the intensity of the infrared rays received by the second infrared lamps and corresponding to the first infrared lamps, so that the infrared touch module can be inspected and the infrared lamps whose orientation needs to be adjusted in the infrared touch module can be determined during the production process of the infrared touch module, so that the directions of the infrared rays emitted by all the infrared lamps in the infrared touch module can be relatively stable, thereby avoiding the occurrence of sound in the situations of false touch, missing point, broken line, etc., and improving the accuracy of detecting and positioning the touch of a user by the electronic device through the infrared technology, and then the user experience of the electronic equipment 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 described below, and it is obvious that the drawings in the following description are only 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 diagram of an application scenario of the present application;
fig. 2 is a schematic view of a scanning direction of an infrared lamp tube in the electronic device provided in the present application;
fig. 3 is a schematic structural diagram of an infrared lamp tube provided by the present application;
FIG. 4 is a schematic view of another structure of an infrared lamp tube;
FIG. 5 is a schematic view of another structure of an infrared lamp tube;
fig. 6 is a schematic diagram of an embodiment of a detection system of an infrared touch module provided in the present application;
fig. 7 is a schematic side view of an infrared lamp tube provided in the present application;
FIG. 8 is a graph illustrating infrared intensity provided herein;
fig. 9 is a schematic view of a first detection situation of an infrared lamp provided by the present application;
FIG. 10 is a schematic illustration of the infrared intensity provided by the present application in a first detection situation;
fig. 11 is a schematic view of a second detection situation of the infrared lamp provided by the present application;
FIG. 12 is a schematic illustration of the infrared intensity provided herein in a second detection scenario;
fig. 13 is a flowchart illustrating an embodiment of a detection method of an infrared touch module according to the present application.
Detailed Description
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 only a part of the embodiments of the present application, and not all of the 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.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Before formally describing the embodiments of the present application, a description will be given below of the application scenarios and problems in the prior art with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of an application scenario of the present application, where fig. 1 shows an electronic device 10, where the electronic device 10 has a display screen 11, and the display screen 11 supports a function controlled by a user through touch. The electronic device 10 may be a device with a display screen, such as a mobile phone, a tablet computer, a desktop computer, a notebook computer, a television, a conference interactive tablet, and the like. The display screen 11 may be specifically an infrared touch screen, which emits infrared rays on a display plane, and detects the action of the user 20 touching the display screen 11 through the change of the infrared ray signal intensity caused when the hand of the user 20 touches the screen, so as to obtain the position touched by the user 20, and the obtained position may be used for subsequent calculation. The touch detection performed by the electronic device with the infrared touch screen can be also called as an infrared-based touch detection technology, and has the advantages of strong environmental adaptability, long service life of the device, more recognizable touch points and the like.
When the electronic device 10 shown in fig. 1 implements the infrared touch detection function through the display screen 11, in a specific implementation manner, taking the electronic device 10 having a rectangular display screen 11 as an example, a plurality of infrared light tubes 101 may be disposed at each edge of the periphery of the display screen 11, for example, at the right side edge a, the left side edge b, the lower side edge c, and the upper side edge d of the display screen 11 in the figure, a plurality of infrared light tubes 101 are uniformly distributed on each edge, and the number of the infrared light tubes 101 disposed at each edge is not limited. Two opposite edges can be defined as a transmitting edge and a receiving edge, and the function of the infrared lamp tube 101 on the transmitting edge can be set to emit infrared rays, and the function of the infrared lamp tube 101 on the receiving edge can be set to receive the infrared rays emitted by the infrared lamp tube 101 on the transmitting edge.
For example, in the example shown in fig. 1, when the right edge a is used as the emitting edge and the left edge b is used as the receiving edge, each infrared lamp 101 at the edge a has the function of emitting infrared rays, and then the edge b can be received by one or more infrared lamps 101 having tubes for receiving infrared rays emitted by any infrared lamp 101 at the edge a; when the lower side edge c is an emission edge and the upper side edge d is a receiving edge, each infrared lamp 101 at the edge c has a function of emitting infrared rays, and the edge d can receive the infrared rays emitted by any infrared lamp 101 at the edge c through one or more infrared lamps 101. Finally, the infrared rays emitted by all the infrared lamps 101 on the edge a and the edge c form an infrared ray "optical network" on the display screen 11, so that the electronic device 10 can specifically determine the touch behavior of the user 20 on the display screen 11, the touch position corresponding to the touch behavior, and the like according to different forms of the infrared rays received by the infrared lamps 101 on the edge b and the edge d.
Optionally, the present application does not limit the direction in which each infrared lamp 101 emits infrared light on the emitting side, for example, fig. 2 is a schematic diagram of the scanning direction of the infrared lamp in the electronic device provided by the present application, in the example shown in fig. 2, when the right side edge a is the emitting side and the left side edge b is the receiving side, the infrared light emitted by the infrared lamp 101 on the edge a may be parallel to the edges of the upper and lower sides, or may form a certain angle with the edges of the upper and lower sides; when the lower side edge c is an emitting edge and the upper side edge d is a receiving edge, the infrared rays emitted by the infrared lamp tube 101 on the edge c may be parallel to the left and right edges, or may form a certain angle with the left and right edges. Then, for each infrared lamp tube in fig. 2, the light paths of the emitted light have different angles, and each of the n light paths emitted by the infrared rays emitted by one infrared lamp tube is taken as a scanning direction, so that the infrared rays emitted by one infrared lamp tube can be received by n infrared lamp tubes, which is also called a scanning manner of 1 to n.
More specifically, fig. 3 is a schematic structural diagram of the infrared lamp provided in the present application, and as shown in fig. 3, a plurality of infrared lamps 101 disposed at each edge of the electronic device 10 shown in fig. 1 may be disposed on one Printed Circuit Board (PCB) 102, and then 4 PCBs are disposed at four edges a-d of the electronic device 10 to respectively dispose the plurality of infrared lamps at each edge. In contrast, for any one of the plurality of infrared lamps 101 shown in fig. 3, the direction x in which the infrared lamp 101 is oriented is taken as a standard orientation, the standard orientation should be parallel to the plane in which the display screen 11 of the electronic device is located, and the emitted infrared rays should be as close to the display screen 11 as possible, so that when the hand of the user 20 touches the display screen 11, the hand of the user 20 can be detected at any position above the display screen 11.
However, the orientation of the infrared lamp 101 shown in fig. 3 is ideal, and in practical applications, due to various external factors such as production deviation and transportation deformation, the plurality of infrared lamps disposed on the electronic device 10 may not all be oriented exactly as shown in fig. 3, but have a certain deviation. For example, fig. 4 is a schematic diagram of another structure of the infrared light tube, and a certain elevation angle exists between the direction x1 in which the infrared light tube 101 shown in fig. 4 faces and the standard direction x shown in fig. 3, and when the elevation angle is large, the hand of the user 20 is not yet touched on the display screen 11, and is detected, so that a false touch is caused, the touch operation feeling of the user is not good, and the user experience of the electronic device 10 is greatly affected. Fig. 5 is a schematic diagram of another structure of the infrared lamp, where a certain depression angle exists between the direction x2 in which the infrared lamp 101 is oriented as shown in fig. 5 and the standard orientation x as shown in fig. 3, and when the depression angle is large, the infrared ray emitted by the infrared lamp 101 is not parallel to the display screen 11, which may cause that the whole display screen 11 cannot be covered, which may result in that a certain area cannot detect the hand of the user 20, and further cause a missing point and a broken line of the user 20 during the touch control process, which also greatly affects the user experience of the electronic device 10.
Therefore, the application provides a method and a system for inspecting an infrared touch module, which are used for inspecting the infrared touch module arranged around a display screen of an electronic device in a production process and determining the infrared lamp tubes of which the orientation needs to be adjusted in the infrared touch module, so that the directions of infrared rays emitted by all the infrared lamp tubes of the infrared touch module can be relatively stable, thereby avoiding the sound production of situations such as mistaken touch, missing points, broken lines and the like in the figures 4 and 5, improving the accuracy of detecting and positioning the touch of a user by the electronic device through an infrared technology, and further improving the user experience of the electronic device.
The technical solution of the present application will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 6 is a schematic view of an embodiment of a detection system of an infrared touch module according to the present application, and the detection system shown in fig. 6 can be used for detecting the orientations of a plurality of infrared light tubes 101 according to the intensities of infrared rays emitted by the plurality of infrared light tubes 101 disposed on the infrared touch module 100 to be detected. The infrared touch module 100 to be detected may be the infrared touch module 100 disposed at any edge a-d of the display screen 11 in the electronic device 10 shown in fig. 1.
For convenience of description, the infrared lamp tubes 101 in the infrared touch module 100 provided in this embodiment are referred to as first infrared lamp tubes, then the multiple first infrared lamp tubes 101 are disposed on the same PCB102, and a direction in which the infrared touch module 101 emits infrared rays is referred to as a first direction, the first direction corresponds to a vertical direction from bottom to top in fig. 6, meanwhile, the first direction is parallel to a plane where the PCB is located, and the multiple first infrared lamp tubes 101 should theoretically face the first direction, then the detection system of the infrared touch module provided in this embodiment is configured to detect whether the multiple first infrared lamp tubes 101 face the first direction, and determine that a facing angle of the first infrared lamp tube 101 with a larger difference from the first direction needs to be adjusted.
Specifically, the detection system of the infrared touch film set shown in fig. 6 includes: a receiving module 200, an occlusion module 300 and a processing module 400.
The receiving module 200 is disposed opposite to the infrared touch film set 100 to be detected, and is configured to receive infrared rays emitted by the plurality of first infrared lamps 101 on the infrared touch module 100. Therefore, the receiving module 200 is disposed toward a second direction opposite to the first direction, which corresponds to a vertical direction from top to bottom in fig. 6. In a specific implementation manner, the receiving module 200 includes a plurality of second infrared light tubes 201, the plurality of second infrared light tubes 201 correspond to the plurality of first infrared light tubes 101 on the infrared touch module 100 one by one, and each second infrared light tube 201 is configured to receive the infrared rays emitted by the corresponding first infrared light tube 101. Alternatively, a plurality of second infrared lamps 201 may be disposed on the same PCB202, and in this embodiment, the plurality of second infrared lamps 201 are disposed toward the second direction within an allowable error (e.g., 5 °) by default.
The shielding module 300 is specifically disposed between the infrared touch module 100 to be detected and the receiving module 200, and is configured to partially shield infrared rays emitted by the first infrared lamp tubes 101 in the first direction. Alternatively, the shielding module 300 may be made of an iron block, an aluminum profile, or other materials capable of absorbing and shielding infrared rays and preventing infrared rays from propagating further. Through the shielding of the shielding module 300, for all the infrared rays transmitted by the corresponding first infrared lamp tubes 101 that cannot be completely received by the plurality of second infrared lamp tubes 201 on the receiving module 200, the intensity of the received infrared rays is less than the intensity of the actually transmitted infrared rays.
Next, a specific arrangement manner of the shielding module 300 in the embodiment is described with reference to fig. 7 and fig. 8, where fig. 7 is a schematic side structure diagram of the infrared lamp tube provided in the present application, and taking any one of the first infrared lamp tubes 101 in the infrared touch module 100 to be detected as an example, it can be seen that the PCB102 shown in fig. 7 is parallel to a horizontal direction in the drawing, a direction in which the infrared touch module 100 emits infrared rays is a first direction x parallel to the horizontal direction and rightward in the drawing, and the first infrared lamp tube 101 should theoretically also face the first direction x in the drawing.
In order to detect the orientation of the first infrared lamp 101, two preset distances are defined in the present embodiment: a first preset distance H1 and a second preset distance H2, and two preset infrared intensities B1 and B2. The shielding module 300 may be disposed above the two preset distances, and is disposed perpendicular to the first direction x and parallel to the PCB 102. The preset distance is a distance between the shielding module 300 and the plane where the PCB102 is located in the vertical direction shown in fig. 7, and meanwhile, the distance between the first direction x and the PCB102 is denoted as H, then the first preset distance H1 is greater than H, and the second preset distance H2 is less than H and greater than 0. Alternatively, the shielding module 300 may be a rectangular body, and may shield all infrared rays above H1 when set at the first preset distance H1; when the distance is set to the second preset distance H2, all infrared rays above H2 can be blocked.
When the infrared ray emitted by the first infrared lamp tube 101 shown in fig. 7 is not provided with the shielding module 300, the intensity of the infrared ray received by the corresponding second infrared lamp tube 201 is marked as a; when the shielding module 300 is set at the height of the first preset distance H1 as shown in fig. 7, the intensity of the infrared ray received by the corresponding second infrared lamp 201 is recorded as a first intensity B1; when the shielding module 300 is set at the height of the second preset distance H2 as shown in fig. 7, the intensity of the infrared ray received by the corresponding second infrared lamp 201 is recorded as the second intensity B2, and fig. 8 is a schematic diagram of the intensity of the infrared ray provided by the present application, which shows the relationship between the three signal intensities A, B1 and B2.
More specifically, the processing module 400 provided in this embodiment of the application may determine, according to the intensity of the infrared ray received by the receiving module 200 and shielded by the shielding module 300 when the shielding module 300 is set at different preset distances H1 and H2, a first infrared lamp 101, which needs to be directionally adjusted, in the plurality of first infrared lamps 101, and determine an adjustment direction, and two adjustment manners, which need to be performed by the first infrared lamp 101 and can be determined by the processing module 400, are respectively described below with reference to fig. 9 to 10 and fig. 11 to 12.
Fig. 9 is a schematic diagram of a first detection situation of the infrared lamp provided by the present application, wherein in the first detection situation shown in fig. 9, for the first infrared lamp 101 with an orientation x1 (specific structure can refer to fig. 4) in the infrared touch module 100 to be detected, when the shielding module 300 is disposed between the first infrared lamp 101 and the second infrared lamp 201 and maintains a first preset distance H1 with the PCB102, since a certain elevation angle exists between the actual orientation x1 of the first infrared lamp 101 and the first direction x, the actual infrared intensity received by the second infrared lamp 201 after being shielded by the shielding module 300 is smaller than the first intensity B1 shown in fig. 8. Fig. 10 is a schematic diagram of the infrared ray intensity in the first detection case provided by the present application, wherein it is shown that the intensity C1 of the infrared ray received by the second infrared lamp tube 201 shown in fig. 9 is smaller than the first intensity B1. In the same manner, when the shielding module 300 is disposed at the first preset distance H1, the processing module 400 may acquire, through the plurality of second infrared light tubes 201, the infrared rays emitted by all the plurality of first infrared light tubes 101 in the infrared touch module 100 to be detected, determine the second infrared light tubes 201 whose intensity received by all the second infrared light tubes 201 is less than the first intensity B1, determine that each first infrared light tube 101 corresponding to the second infrared light tubes 201 has an elevation angle deviating from the first direction x shown in fig. 9, and further determine that the first infrared light tubes 101 need to adjust their orientations toward the direction in which the PCB102 is located, so that the first infrared light tubes 101 face the first direction x.
Fig. 11 is a schematic diagram of a second detection situation of the infrared lamp provided by the present application, wherein in the second detection situation shown in fig. 11, for the first infrared lamp 101 with an orientation x2 (specific structure can refer to fig. 5) in the infrared touch module 100 to be detected, when the shielding module 300 is disposed between the first infrared lamp 101 and the second infrared lamp 201 and maintains a second preset distance H2 with the PCB102, since a certain depression angle exists between the actual orientation x2 of the first infrared lamp 101 and the first direction x, the actual infrared intensity received by the second infrared lamp 201 after being shielded by the shielding module 300 is greater than the second intensity B2 shown in fig. 8. Fig. 12 is a schematic diagram of the infrared ray intensity in the second detection case provided by the present application, wherein it is shown that the intensity C2 of the infrared ray received by the second infrared lamp tube 201 shown in fig. 11 is greater than the second intensity B2. In the same manner, when the shielding module 300 is disposed at the second preset distance H2, the processing module 400 may acquire, through the plurality of second infrared light tubes 201, the infrared rays emitted by all the plurality of first infrared light tubes 101 in the infrared touch module 100 to be detected, determine that the intensity received by all the second infrared light tubes 201 is greater than the second intensity B2, determine that each first infrared light tube 101 corresponding to the second infrared light tubes 201 has a downward depression angle deviating from the second direction x as shown in fig. 11, and further determine that the first infrared light tubes 101 need to adjust their orientations in a direction away from the PCB102, so that the first infrared light tubes 101 face the first direction x.
It should be noted that, in this embodiment, two preset distances H1 and H2 are specially set, and the first infrared lamp tube with an elevation angle and a depression angle is detected respectively, and the signal intensities B1 and B2 corresponding to the two preset distances may also be adjusted respectively, so that a certain signal intensity range is presented between B1 and B2, during the detection, the first infrared lamp tube with a certain elevation angle but a signal intensity not less than the adjusted first intensity B1 may not actually face the first direction x, but the certain elevation angle may still ensure normal infrared transmission and reception, and may not be adjusted; similarly, the first infrared lamp tube having a certain depression angle but the signal intensity is not greater than the adjusted second intensity B2, although it is not actually oriented in the first direction x, the first infrared lamp tube having a certain depression angle can still ensure normal infrared transmission and reception, and may not be adjusted. The above-mentioned acceptable certain elevation angle and depression angle can be set according to different working conditions, for example, the deviation between 5 degrees and 10 degrees can be set.
Alternatively, the processing module 400 may be a processor such as a CPU having an associated data processing function; or, the processing module 400 may also be an electronic device with a display interface, such as a mobile phone and a computer, and after the first infrared lamp tube whose direction needs to be adjusted is determined by the method shown in fig. 9 to 12, the processing module 400 displays prompt information in the form of characters, images, and the like through the display interface, so as to prompt all the first infrared lamp tubes whose direction needs to be adjusted and the specific adjustment manner of each first infrared lamp tube, and finally enables a worker to adjust the orientation of the first infrared lamp tube 101 in the infrared touch module 100 according to the displayed prompt information.
Or, optionally, the detection system of the infrared touch module provided in this embodiment may directly detect the infrared touch module 100 being produced by the production equipment, and then the processing module 400 may also be directly connected to the production equipment, and after the processing module 400 determines the first infrared lamp tube whose direction needs to be adjusted according to the method shown in fig. 9 to 12, the processing module may directly control the production equipment to adjust the orientation of the first infrared lamp tube, so as to improve the intelligence degree of the whole detection process and implement real-time error detection and correction.
Optionally, in order to achieve the detection in this embodiment, the shielding module 300 needs to switch between the first preset distance H1 and the second preset distance H2 set in fig. 9 and fig. 11, and this switching can be performed by a worker; alternatively, in another implementation, the processing module 400 may further be connected to the shielding module 300 (the connection relationship is not shown in the drawings), and the shielding module 300 is disposed on a lifting system such as a guide rail, and the processing module directly controls the shielding module 300 to switch between the first preset distance H1 and the second preset distance H2.
In summary, in the inspection system of the infrared touch module provided in this embodiment, the set shielding module partially shields the infrared rays emitted by the first infrared lamps in the infrared touch module, and determines the first infrared lamps having a certain depression angle or elevation angle and the direction to be adjusted according to the intensity of the infrared rays received by the second infrared lamps and corresponding to the first infrared lamps, so that the infrared touch module can be inspected and the infrared lamps in the infrared touch module whose direction is to be adjusted are determined, and the directions of the infrared rays emitted by all the infrared lamps in the infrared touch module can be relatively stable, thereby avoiding the situations of false touch, missing sound, breaking lines and the like in fig. 4 and fig. 5, and improving the accuracy of detecting and positioning the touch of the user by the electronic device through the infrared technology, and then the user experience of the electronic equipment is improved.
The present application further provides a method for inspecting an infrared touch module, which can be applied to an inspection system of an infrared touch module provided in the foregoing embodiments of the present application, where the processing module 400 executes the method, and specifically, fig. 13 is a schematic flowchart of an embodiment of a method for detecting an infrared touch module provided in the present application, and as shown in fig. 13, the method includes: s1: acquiring the intensity of infrared rays emitted by the plurality of first infrared lamp tubes; the infrared rays emitted by the first infrared lamp tubes are partially shielded by the shielding module; s2: and determining the direction of the first infrared lamp tubes to adjust according to the intensity of the infrared rays emitted by the first infrared lamp tubes. Regarding the specific implementation and principle of the method executed by the processing module 400 in fig. 13, reference is made to the steps executed by the processing module 400 in the description of the system in the foregoing embodiment, and details are not repeated.
In some embodiments, S2 specifically includes: acquiring first intensity of infrared rays emitted by a plurality of first infrared lamp tubes when a first preset distance exists between the shielding module and the PCB; the distance between the first direction and the plane where the PCB is located is smaller than a first preset distance; and determining the direction of the PCB (printed Circuit Board) in which the first intensity of the infrared rays emitted from the first infrared lamp tubes is smaller than a first preset value is adjusted.
In some embodiments, S2 specifically includes: acquiring second intensity of infrared rays emitted by the plurality of first infrared lamp tubes when a second preset distance exists between the shielding module and the PCB; the distance between the first direction and the plane where the PCB is located is larger than a second preset distance; determining that the first infrared lamp tube, of the plurality of first infrared lamp tubes, emitting infrared rays with second intensity larger than a second preset value is adjusted towards the direction far away from the PCB
Embodiments of the present application also provide a readable storage medium, which stores instructions that, when executed on a computer, cause the computer to execute the method as shown in fig. 13 and described above in the present application.
The embodiment of the present application further provides a chip for executing the instruction, where the chip is used to execute the method shown in fig. 13 as described above in the present application.
Embodiments of the present application further provide a program product, where the program product includes a computer program, where the computer program is stored in a storage medium, and the computer program can be read from the storage medium by at least one processor, and when the computer program is executed by the at least one processor, the method as shown in fig. 13 and described above in this application can be implemented.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. The detection system for the infrared touch module is characterized by being used for detecting a plurality of first infrared lamp tubes in the infrared touch module, wherein the plurality of first infrared lamp tubes are arranged on a Printed Circuit Board (PCB), the direction of infrared rays emitted by the infrared touch module is a first direction, and the first direction is parallel to the plane of the PCB; the system comprises:
the receiving module is arranged opposite to the first infrared lamp tubes and used for receiving the infrared rays emitted by the first infrared lamp tubes;
the shielding module is arranged between the infrared touch module and the receiving module and is used for shielding the infrared rays emitted to the first direction by the plurality of first infrared lamp tubes;
and the processing module is connected with the receiving module and used for determining to adjust the orientation directions of the first infrared lamp tubes according to the intensity of the infrared rays emitted by the first infrared lamp tubes received by the receiving module.
2. The system of claim 1, wherein the receiving module comprises:
the second infrared lamp tubes correspond to the first infrared lamp tubes one by one, and each second infrared lamp tube is used for receiving infrared rays emitted by the corresponding first infrared lamp tube.
3. The system according to claim 1 or 2,
the shielding module is specifically arranged as follows: and a space is reserved between the shielding module and the PCB.
4. The system of claim 3, wherein the processing module is further configured to,
and controlling the spacing distance between the shielding module and the PCB to switch between a first preset distance and a second preset distance.
5. The system according to claim 4, characterized in that the processing module is specifically configured to,
acquiring first intensity of infrared rays emitted by the plurality of first infrared lamp tubes received by the receiving module when a first preset distance exists between the shielding module and the PCB; wherein a distance between the first direction and a plane where the PCB is located is smaller than the first preset distance;
and determining that the direction of the first infrared lamp tube, of the plurality of first infrared lamp tubes, of which the first intensity of the emitted infrared rays is smaller than a first preset value is adjusted to the direction of the PCB.
6. The system according to claim 4, characterized in that the processing module is specifically configured to,
acquiring second intensity of infrared rays emitted by the plurality of first infrared lamp tubes received by the receiving module when a second preset distance exists between the shielding module and the PCB; wherein a distance between the first direction and a plane where the PCB is located is greater than the second preset distance;
and determining that the direction of the first infrared lamp tube, of the plurality of first infrared lamp tubes, of which the second intensity of the emitted infrared rays is greater than a second preset value is adjusted to the direction far away from the PCB.
7. The system of claim 1,
the shielding module comprises: iron blocks or aluminum profiles.
8. The detection method of the infrared touch module is characterized by being used for detecting a plurality of first infrared lamp tubes in the infrared touch module, wherein the plurality of first infrared lamp tubes are arranged on a Printed Circuit Board (PCB), the direction of infrared rays emitted by the infrared touch module is a first direction, and the first direction is parallel to the plane of the PCB; the method comprises the following steps:
acquiring the intensity of infrared rays emitted by the plurality of first infrared lamp tubes; the infrared rays emitted by the first infrared lamp tubes are partially shielded by the shielding module;
and determining the direction of the plurality of first infrared lamp tubes to adjust according to the intensity of the infrared rays emitted by the plurality of first infrared lamp tubes.
9. The method according to claim 8, wherein determining the direction in which the first plurality of infrared light tubes are oriented to adjust based on the intensity of the infrared light emitted by the first plurality of infrared light tubes comprises:
acquiring first intensity of infrared rays emitted by the plurality of first infrared lamp tubes when a first preset distance exists between the shielding module and the PCB; wherein a distance between the first direction and a plane where the PCB is located is smaller than the first preset distance;
and determining the direction of the first infrared lamp tube, of which the first intensity of the infrared rays is smaller than a first preset value, facing the direction of the first infrared lamp tube, wherein the PCB is located.
10. The method according to claim 8, wherein determining the direction in which the first plurality of infrared light tubes are oriented to adjust based on the intensity of the infrared light emitted by the first plurality of infrared light tubes comprises:
acquiring second intensity of infrared rays emitted by the plurality of first infrared lamp tubes when a second preset distance exists between the shielding module and the PCB; wherein a distance between the first direction and a plane where the PCB is located is greater than the second preset distance;
and determining that the direction of the first infrared lamp tube, of the plurality of first infrared lamp tubes, of which the second intensity of the emitted infrared rays is greater than a second preset value is adjusted to the direction far away from the PCB.
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| CN202011141368.1A CN114385024A (en) | 2020-10-22 | 2020-10-22 | Method and system for detecting infrared touch module |
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