CN110456939B - Infrared touch control light mode adjusting jig and adjusting method - Google Patents
Infrared touch control light mode adjusting jig and adjusting method Download PDFInfo
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- CN110456939B CN110456939B CN201910619868.2A CN201910619868A CN110456939B CN 110456939 B CN110456939 B CN 110456939B CN 201910619868 A CN201910619868 A CN 201910619868A CN 110456939 B CN110456939 B CN 110456939B
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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
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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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- 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
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
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Abstract
The invention relates to an infrared touch control light module adjusting jig and an adjusting method, wherein the jig comprises: the device comprises a plane bottom plate, a scale with a plurality of correction grooves, an infrared camera and a correction light emitting device; the scale is arranged above the plane bottom plate; an infrared touch product to be adjusted is placed above the plane bottom plate and faces the scale so as to project an optical signal emitted by an optical mode emitter of the infrared touch product onto the scale; the correction light emitting device is arranged above the plane bottom plate and faces the scale to project a light signal onto the correction groove of the scale; the infrared camera is arranged above the plane bottom plate to capture an optical signal on the scale. The height of the infrared light module emitter is judged whether to meet the preset requirement through the jig and the computing device connected with the jig, manual judgment is not needed, the height value is ensured to meet the requirement, the skill requirement on an operator is low, the production efficiency is greatly improved, and the production cost is reduced.
Description
Technical Field
The invention relates to the technical field of projectors, in particular to an infrared touch control light mode adjusting jig and an infrared touch control light mode adjusting method.
Background
An existing infrared touch product system may include a projection device, an image pickup device, and an infrared light module emitter. The projection device is used for projecting a projection image on a projection plane, wherein the projection image can comprise a first interaction area; the infrared light mode emitter is used to emit a predetermined light signal to form a light plane. In the display direction of the projected image, the working area of the light plane is covered above the first interaction area of the projected image, the working area is not intersected with the first interaction area, and the image pickup device is used for acquiring a preset light signal in the working area. Of course, the existing infrared touch control product system may further include a processor, and the processor may process the collected light signal to determine an interaction position, and generate a corresponding control signal according to the determined interaction position to control the projection device to change the projection image in response to the interaction operation and generate an interaction with the user.
The difference in height of the infrared light emitters may result in a larger distance between the working area and the first interaction area, so that, in order to avoid that a user's part (for example, a hand) or an object required for the user to perform the interaction operation may not mistakenly touch the working area and thus generate an unnecessary signal change, and thus cause the projection apparatus to make an erroneous response, the user may need to place the hand at a position higher than the working area, thereby resulting in a poor user experience, in the case that the user does not yet perform the interaction operation with the projected image. If the interval between the working area and the first interaction area is small, a part of the areas cannot respond when a user performs an interaction operation in the first interaction area.
Therefore, in order to satisfy both the characteristics of the projection plane and the user experience, the working area and the first interaction area need to be set at a moderate interval, i.e., the height of the infrared light module emitter is properly adjusted. The existing adjusting mode is manual adjustment and manual judgment of an operator, and due to the fact that no unified standard exists, the requirement on adjusting skill is high, production efficiency is low, and adjusting precision is not high.
Disclosure of Invention
The invention mainly aims to overcome the defects that in the prior art, the unified jig and a computing device (computer) connected with the unified jig are used for judging whether the height of an infrared light module emitter meets the preset requirement or not, manual judgment is not needed, the height value is ensured to meet the requirement, the skill requirement of an operator is low, the production efficiency is greatly improved, and the production cost is reduced.
The invention adopts the following technical scheme:
on one hand, the invention provides an infrared touch control light mode adjusting jig, which comprises: a plane bottom plate (reference surface), a scale with a plurality of correction grooves, an infrared camera and a correction light emitting device; the scale is arranged above the plane bottom plate; an infrared touch product to be adjusted is placed above the plane bottom plate and faces the scale so as to project an optical signal emitted by an optical mode emitter of the infrared touch product onto the scale; the correction light emitting device is arranged above the plane bottom plate and faces the scale to project a light signal onto the correction groove of the scale; the infrared camera is arranged above the plane bottom plate to capture an optical signal on the scale.
Preferably, the correction grooves on the scale include four but are not limited to 4; one on the upper left of the scale, one on the lower left of the scale, one on the upper right of the scale, and one on the lower right of the scale; the correction light emitting device comprises two parts, one part is used for projecting light signals to the correction groove above the scale, and the other part is used for projecting light signals to the correction groove below the scale.
Preferably, the infrared cameras include two, but are not limited to two; one of which is disposed to the left of the planar base plate to capture the optical signal to the left of the scale; the other is arranged on the right side of the planar base plate to capture the optical signal on the right side of the scale.
Preferably, the jig further comprises a product limiting device for placing infrared touch products of different sizes.
Preferably, the jig further comprises a code scanning device; the code scanning device is arranged above the plane bottom plate and is used for scanning codes of the products to be regulated.
Preferably, the planar base plate, i.e. the reference plane, ensures a high uniformity of the optical mode.
Preferably, a hollow groove is formed in the planar base plate to determine whether an optical signal emitted by an optical mode emitter of the infrared touch product intersects the planar base plate.
On the other hand, the invention provides an infrared touch control light mode adjusting method, which comprises the following steps:
the light signal is projected to the upper correction groove and the lower correction groove of the scale by the adjusting and correcting light emitting device to form light spots, and the light spots on the scale are captured by the infrared camera and sent to the calculating device;
the computing device finds out a coordinate TOP of a TOP white point of an upper correction groove light spot in a first preset area by adopting an edge detection method, finds out a coordinate BOTTOM of a BOTTOM white point of a lower correction groove light spot, and obtains a height value S _ HIGHT of a single pixel, namely (a distance from a lower edge of the upper correction groove to an upper edge of the lower correction groove) ÷ (TOP-BOTTOM); further obtaining the X-axis position of the planar base plate, DATUM _ plan ═ BOTTOM — (distance of the planar base plate to the upper edge of the lower correction slot ÷ S _ high); the first preset area is within the correction slot area;
adjusting the height of an optical mode emitter of the infrared touch product to control an optical signal emitted by the optical mode emitter of the infrared touch product to be projected onto the scale to form a light spot, and capturing the light spot on the scale by the infrared camera and sending the light spot to the computing device;
the computing device finds the position Coordinate along the lower edge of the light spot in the second preset area by adopting an edge detection method, multiplies the difference between the Coordinate and the DATUM _ PLANE by the S _ HIGHT, and obtains the distance between a light PLANE formed by the light signal emitted by the light mode emitter and the display PLANE of the infrared touch product; if the distance meets the preset value, the height adjustment of the light mode emitter of the infrared touch product is finished; the second preset area is close to the correction groove area.
Preferably, the adjusting method further comprises:
the computing device finds the coordinates of the white point at the top edge in the second preset area by adopting an edge detection method, and finds the coordinates of the white point at the bottom edge; the coordinates of the white point at the top edge and the coordinates of the white point at the bottom edge are subjected to difference to obtain the thickness of the light spot; and if the thickness of the light spot meets a preset value, finishing the height adjustment of the light mode emitter of the infrared touch product.
Preferably, the side inspection method specifically includes:
searching white points along the Y axis in a preset area, and recording the coordinates of the uppermost white point and the coordinates of the lowermost white point when the continuous number of the white points exceeds a preset value;
searching white points along the row where the uppermost white point is located in a preset area, and if the ratio of the white points is greater than a preset value, moving the X axis upwards for searching; if the ratio of the white points is smaller than a preset value, moving the X axis downwards for searching; when the white point proportion reaches a preset value, taking the current axis as a light spot upper edge line;
searching white points along the row where the lowest white point is located in a preset area, and moving the X axis upwards for searching if the ratio of the white points is greater than a preset value; if the ratio of the white points is smaller than a preset value, moving the X axis downwards for searching; and when the white point ratio reaches a preset value, taking the current axis as the lower edge line of the light spot.
Preferably, the scale upper edge correction groove comprises a scale upper left edge correction groove and a scale upper right edge correction groove; the lower ruler edge correction groove comprises a lower ruler left edge correction groove and an upper ruler right edge correction groove; adjusting the correction light emitting device to obtain a height value of a single pixel on the left side of the planar bottom plate, a height value of a single pixel on the right side, an X-axis position on the left side and an X-axis position on the right side; adjusting the height of an optical mode emitter of the infrared touch product to obtain the left distance and the right distance between an optical plane formed by an optical signal emitted by the optical mode emitter and a display plane of the infrared touch product; and if the left distance and the right distance meet preset values, finishing height adjustment of the light mode emitter of the infrared touch product.
As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages:
(1) the invention judges whether the height of the infrared light mode emitter meets the preset requirement through the unified jig and the computing device (computer) connected with the unified jig, does not need manual judgment, ensures that the height value meets the requirement, has low skill requirement on operators, greatly improves the production efficiency and reduces the production cost;
(2) the optical mode adjusting process of the invention is displayed on the scale, the scale is provided with the calibration groove with fixed height, and the measuring precision can be improved after the jig is calibrated by the calibration groove;
(3) the infrared camera of the invention captures a black background white light image, the height of the white light is the height of the light module, and the calculating device can calculate the height through the position of the white spot in the image and display the height in real time;
(4) because the planar base plate reflects light, when the optical mode emitter crosses the planar base plate, the infrared light is reflected by the planar surface onto the scale, which can cause a height error; the empty groove on the plane bottom plate can cause the reflection surface to be lost, so that the light spot is incomplete, the computing device can judge whether the light is crossed with the plane or not according to the shape of the light spot on the fixed position, and besides, a material with low reflection rate can be attached to the plane;
(5) the computing device of the invention provides a setting interface, an operator can set a height value according to the specification of a product, when a light spot is adjusted to a set range and no black spot dark line exists on the light spot (the black spot dark line appears when a light emitter scratches or is stained with foreign matters), the qualification is prompted, meanwhile, a code scanning device fixed on a jig is called to scan a product code to store data, and if the product is unqualified, unqualified related data is stored, the product with unqualified infrared touch cannot flow to the next procedure;
(6) the height of the light mode emitter of the infrared touch product can be adjusted manually; the light source can be adjusted by an electric adjusting mechanism, specifically, an infrared camera is used for automatically capturing a display area to generate a touch area, a light spot is adjusted to a display plane by an electric adjuster and is parallel to a touch edge, then the light spot is moved to the edge of an image in a left-right alternating mode, the moving process automatically learns the single-step moving distance, the distance of the light spot moving away from the touch edge is calculated by combining the height of a light-emitting element for generating the light mode and the distance of the single-step moving, the light spot is moved out of the touch area in a parallel mode, and therefore the light mode can be adjusted to the preset height.
The present invention will be described in further detail with reference to the drawings and the embodiments, but the fixture and the method for adjusting an infrared touch light module according to the present invention are not limited to the embodiments.
Drawings
FIG. 1 is a view showing the structure of a jig according to the present invention;
FIG. 2 is a schematic diagram of the edge inspection method of the present invention;
FIG. 3 is a schematic diagram of a parameter setting page of the adjusting method of the present invention;
FIG. 4 is a calibration area selection chart of the adjustment method of the present invention;
FIG. 5 is a selection of height zones for the adjustment method of the present invention;
FIG. 6 is a schematic diagram illustrating calculation of a height value of a single pixel according to the adjusting method of the present invention;
FIG. 7 is a schematic diagram of the conditioning process of the present invention.
Detailed Description
The invention is further described below by means of specific embodiments.
Referring to fig. 1, the present invention provides an infrared touch light module adjusting jig, including: the device comprises a plane bottom plate 10, a scale 20 with a plurality of correction grooves, an infrared camera and a correction light emitting device; the scale 20 is arranged above the planar base plate 10; an infrared touch product to be adjusted is placed above the planar base plate 10 and faces the scale 20 so as to project an optical signal emitted by an optical mode emitter of the infrared touch product onto the scale 20; the correction light emitting device is disposed above the planar base plate 10 and toward the scale 20 to project a light signal onto the correction groove of the scale 20; the infrared camera is disposed above the planar base plate 10 to capture the light signal on the scale 20.
The calibration slots on the scale 20 include, but are not limited to, four; a scale correction D groove 201 is provided above the left side of the scale 20, a scale correction a groove 202 is provided below the left side of the scale 20, a scale correction C groove 203 is provided above the right side of the scale 20, and a scale correction B groove 204 is provided below the right side of the scale 20; the correction light emitting device includes two, and a correction light emitting device a301 is used to project a light signal to the correction groove above the scale 20, and a correction light emitting device B302 is used to project a light signal to the correction groove below the scale 20.
Further, the heights of the groove tops 205 of the scale correction a groove 202 and the scale correction B groove 204 from the flat bottom plate are fixed values, the heights of the groove tops 205 of the scale correction a groove 202 from the groove bottom 206 of the scale correction D groove 201 are fixed values, the heights of the groove tops 205 of the scale correction B groove 204 from the groove bottom 206 of the scale correction C groove 203 are fixed values, and the calculation means can generate the basis of the plane reference line and the height calculation using these fixed values.
When the jig is automatically calibrated, the calibration light emitting device A301 and the calibration light emitting device B302 emit light signals to the calibration groove of the scale 20, the infrared camera captures the upper edge and the lower edge of the calibration groove of the scale 20, and the calculating device calculates the height of a single pixel according to the actual height of the calibration groove and the captured pixels.
The infrared cameras include, but are not limited to, two; wherein an infrared camera a 401 is disposed at the left side of the planar base plate 10 to capture an optical signal at the left side of the scale 20; an infrared camera B402 is arranged on the right side of the planar base plate 10 to capture the light signal on the right side of the scale 20. The infrared camera A401 is fixed on the plane bottom plate 10 through an infrared camera fixing frame, and the infrared camera B402 is fixed on the plane bottom plate 10 through an infrared camera fixing frame.
The infrared camera A401 and the infrared camera B402 are connected to a computing device (computer), and the infrared camera fixing frame enables the distance angle protection of the infrared camera to be unchanged, so that the consistency of test results is confirmed.
The jig further comprises a product limiting device 50 for placing infrared touch control products with different sizes. Because the sizes of the bodies of various infrared touch control products (such as infrared touch control projectors) are different, the infrared touch control products can adapt to different sizes by moving the limiting device.
The jig further comprises a code scanning device 60; the code scanning device 60 is disposed above the planar base plate 10 for scanning the code of the product to be adjusted. The code scanning device 60 is connected to the computing device through a USB, so as to store the codes of the infrared touch products and the corresponding adjustment data.
The jig further comprises an MCU control board 70; the MCU control board 70 is connected to the corrective light emitting devices to control the corrective light emitting devices a301 and B302 to project light signals.
The planar base plate 10 is provided with a hollow slot 80 to determine whether an optical signal emitted by an optical mode emitter of the infrared touch product intersects with the planar base plate 10. If the light is reflected to the scale 20 to cross the flat base plate 10, the light on the scale 20 is deformed after being filtered by the empty groove 80, so that it can be judged whether the height of the optical mode emitter, etc. is abnormal.
Referring to fig. 2 to 7, a method for adjusting an infrared touch light module according to the present invention includes:
the light signal is projected to the upper correction groove and the lower correction groove of the scale by the adjusting and correcting light emitting device to form light spots, and the light spots on the scale are captured by the infrared camera and sent to the calculating device;
the computing device adopts an edge detection method to find a coordinate TOP of the TOP white point of the upper correction slot in the first preset area and find a coordinate BOTTOM of the BOTTOM white point of the lower correction slot, and obtains a height value S _ HIGHT of a single pixel, namely (the distance from the lower edge of the upper correction slot to the upper edge of the lower correction slot) ÷ (TOP-BOTTOM); further obtaining an X-axis position of the planar base plate, DATUM _ plan ═ BOTTOM- (HIGH ÷ S _ HIGH); the first preset area is within the correction groove area;
adjusting the height of an optical mode emitter of the infrared touch product to control an optical signal emitted by the optical mode emitter of the infrared touch product to be projected onto the scale to form a light spot, and capturing the light spot on the scale by the infrared camera and sending the light spot to the computing device;
the computing device finds the position Coordinate along the lower edge of the light spot in the second preset area by adopting an edge detection method, multiplies the difference between the Coordinate and the DATUM _ PLANE by the S _ HIGHT to obtain the distance between a light PLANE formed by the light signal emitted by the light mode emitter and the display PLANE 90 of the infrared touch product; if the distance meets a preset value, the height adjustment of the optical mode emitter of the infrared touch product is finished; the second preset area is close to the correction groove area.
The adjusting method further comprises the following steps:
the computing device finds the coordinates of the white point at the top edge in the second preset area by adopting an edge detection method, and finds the coordinates of the white point at the bottom edge; the coordinates of the white point at the top edge and the coordinates of the white point at the minimum edge are subjected to difference to obtain the thickness of the light spot; and if the thickness of the light spot meets a preset value, finishing the height adjustment of the light mode emitter of the infrared touch product.
Referring to fig. 2, the edge inspection method specifically includes:
searching white spots in a preset area along the line A direction, and recording the TOP white spot coordinate TOP _ W and the BOTTOM white spot coordinate BOTTOM _ W when the continuous number of the white spots exceeds a preset value;
searching white points along the row where the TOP white point TOP _ W is located in the preset area along the line B direction, and if the ratio of the white points is larger than the preset value, moving the X axis upwards for searching; if the ratio of the white points is smaller than a preset value, moving the X axis downwards for searching; the number of the primary shift points depends on the ratio of the current white point, the small shift is large and small, the minimum single step depends on a preset speed value, and when the ratio of the white point reaches the preset value, the current axis is taken as the light spot upper edge LINE and recorded as TOP _ LINE;
searching white points along the line where the bottommost white point BOTTOM _ W is located in a preset area along the line C direction, and if the ratio of the white points is greater than a preset value, moving the X axis upwards for searching; if the ratio of the white points is smaller than a preset value, moving the X axis downwards for searching; the number of the primary shift points depends on the ratio of the current white point, the size of the small shift is small, the minimum single step depends on a preset speed value, and when the ratio of the white point reaches the preset value, the current axis is taken as the lower edge LINE of the light spot and is recorded as BOTTOM _ LINE.
When the method for adjusting the infrared touch control light mode is implemented, firstly, parameter setting is needed, referring to fig. 3, authority management is needed when a user enters a parameter setting page, and the user enters the setting page according to a name and a password. Referring to fig. 4 and 5, the calibration area is selected, outlined in the calibration slot, the height area is selected, and outlined outside the calibration slot.
The scale upper edge correction groove comprises a scale upper left edge correction groove and a scale upper right edge correction groove; the lower ruler edge correction groove comprises a lower ruler left edge correction groove and an upper ruler right edge correction groove; adjusting the correction light emitting device to obtain a height value of a single pixel on the left side of the planar bottom plate, a height value of a single pixel on the right side, an X-axis position on the left side and an X-axis position on the right side; adjusting the height of an optical mode emitter of the infrared touch product to obtain the left distance and the right distance between an optical plane formed by an optical signal emitted by the optical mode emitter and a display plane of the infrared touch product; and if the left distance and the right distance meet preset values, finishing height adjustment of the light mode emitter of the infrared touch product.
Specifically, as shown in fig. 6, the height value of the single pixel on the left side and the X-axis position on the left side of the planar base are calculated by correcting the light emitting device.
When the calibration light A, D is lit, the infrared camera captures a light spot as shown in fig. 6, a fixed value from the bottom of the calibration groove D to the top of the calibration groove a is a calibration groove height value, and a fixed value from the top of the calibration groove a to the flat bottom plate is recorded as a _ HIGH, and the calibration obtains a height value L _ S _ HIGH of a single left pixel and a position DARUM _ plan of the left X axis of the flat bottom plate, and the specific calibration steps are as follows:
(1) lighting the calibration light and setting the area of the calibration slot;
(2) finding the TOP edge of D by using an edge detection method, recording the coordinate as D _ TOP, and recording the lower edge of A as A _ BOTTOM;
(3) the calibrated slot height value is divided by the difference between D _ TOP and A _ BOTTOM, thus obtaining the height value of a single pixel in the left area, recorded as L _ S _ HIGH, and the X-axis position on the left side of the PLANE BOTTOM plate is calculated by disclosing A _ BOTTOM- (A _ HIGH ÷ S _ HIGH), recorded as L _ DATUM _ PLANE.
The right infrared camera is calibrated in the same way and recorded as R _ S _ high and R _ data _ plan, respectively.
Referring to fig. 7, two parallel lines are preset qualified height lines, the actual height information in the adjustment process is displayed along with the light spots, the square frame is a light spot detection area, and the calculation speed can be increased by dividing the area.
The calculation mode of the light spot height (the distance between the light plane formed by the light signal emitted by the light module emitter and the projection plane of the infrared touch product) is as follows:
finding the lower edges of the left light spot and the right light spot by using a side detection method, and respectively recording the lower edges as LC _ Coordinate and RC _ Coordinate;
the left actual height is (LC _ Coordinate-L _ DATUM _ plan) × L _ S _ high, and the right is calculated in the same manner.
Specifically, the step of adjusting the height of the light spot includes:
(1) and placing the infrared touch product to be detected into the limit area, and starting the device.
(2) Loosening the adjuster of the light mode emitter to a freely adjustable height according to the prompt of the status display bar;
(3) adjusting the adjusting device by referring to an adjusting scheme of the status bar (a skilled operator can ignore the adjusting scheme), and displaying the height information of the whole process along with the light spots;
(4) when the left and right heights are adjusted to be in the qualified height line, the system prompts and calculates the thicknesses of the left and right light spots;
(5) and an operator point adjustment completion button, wherein the software controls the code scanning device to scan codes, and the height information and the light spot thickness information of the optical mode emitter are simultaneously stored in the production system.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (9)
1. The utility model provides a tool is adjusted to infrared touch-control light mode which characterized in that includes: the device comprises a plane bottom plate, a scale with a plurality of correction grooves, an infrared camera and a correction light emitting device; the scale is arranged above the plane bottom plate; an infrared touch product to be adjusted is placed above the plane bottom plate and faces the scale so as to project an optical signal emitted by an optical mode emitter of the infrared touch product onto the scale; the correction light emitting device is arranged above the plane bottom plate and faces the scale to project a light signal onto the correction groove of the scale; the infrared camera is arranged above the plane bottom plate to capture an optical signal on the scale;
the correction grooves on the scale comprise four; one on the upper left of the scale, one on the lower left of the scale, one on the upper right of the scale, and one on the lower right of the scale; the correction light emitting device comprises two parts, one part is used for projecting light signals to the correction groove above the scale, and the other part is used for projecting light signals to the correction groove below the scale.
2. The infrared touch control light module adjusting jig according to claim 1, wherein the infrared cameras comprise two; one of which is disposed to the left of the planar base plate to capture the optical signal to the left of the scale; the other is arranged on the right side of the planar base plate to capture the optical signal on the right side of the scale.
3. The infrared touch control light module adjusting jig of claim 1, further comprising a product limiting device for placing infrared touch control products of different sizes.
4. The infrared touch control light module adjusting jig of claim 1, further comprising a code scanning device; the code scanning device is arranged above the plane bottom plate and is used for scanning codes of products to be regulated.
5. The infrared touch control light mode adjusting jig of claim 1, wherein a blank groove is formed on the planar base plate to determine whether the light signal emitted by the light mode emitter of the infrared touch control product intersects the planar base plate.
6. An infrared touch control light module adjusting method is characterized by comprising the following steps:
the light signal is projected to the upper correction groove and the lower correction groove of the scale by the adjusting and correcting light emitting device to form light spots, and the light spots on the scale are captured by the infrared camera and sent to the calculating device;
the computing device finds out a coordinate TOP of a TOP white point of an upper correction groove light spot in a first preset area by adopting an edge detection method, finds out a coordinate BOTTOM of a BOTTOM white point of a lower correction groove light spot, and obtains a height value S _ HIGHT of a single pixel, namely (a distance from a lower edge of the upper correction groove to an upper edge of the lower correction groove) ÷ (TOP-BOTTOM); further obtaining the X-axis position of the planar base plate, DATUM _ plan ═ BOTTOM — (distance of the planar base plate to the upper edge of the lower correction slot ÷ S _ high); the first preset area is within the correction groove area;
adjusting the height of an optical mode emitter of the infrared touch product to control an optical signal emitted by the optical mode emitter of the infrared touch product to be projected onto the scale to form a light spot, and capturing the light spot on the scale by the infrared camera and sending the light spot to the computing device;
the computing device finds the position Coordinate along the lower edge of the light spot in the second preset area by adopting a side detection method, multiplies the difference between the Coordinate and the DATUM _ PLANE by the S _ HIGHT, and obtains the distance between a light PLANE formed by the light signal emitted by the light module emitter and a display PLANE of the infrared touch control product; if the distance meets a preset value, the height adjustment of the optical mode emitter of the infrared touch product is finished; the second preset area is close to the correction groove area.
7. The method for adjusting an infrared touch light module according to claim 6, further comprising:
the computing device finds the coordinates of the white point at the top edge in the second preset area by adopting an edge detection method, and finds the coordinates of the white point at the bottom edge; the coordinates of the white point at the top edge and the coordinates of the white point at the bottom edge are subjected to difference to obtain the thickness of the light spot; and if the thickness of the light spot meets a preset value, displaying that the thickness meets the requirement, and simultaneously recording thickness data.
8. The method for adjusting an infrared touch light module according to claim 6, wherein the edge detection method specifically comprises:
searching white points along the Y axis in a preset area, and recording the coordinates of the uppermost white point and the coordinates of the lowermost white point when the continuous number of the white points exceeds a preset value;
searching white points along the row where the uppermost white point is located in a preset area, and if the ratio of the white points is greater than a preset value, moving the X axis upwards for searching; if the ratio of the white points is smaller than a preset value, moving the X axis downwards for searching; when the white point proportion reaches a preset value, taking the current axis as a light spot upper edge line;
searching white points along the row where the lowest white point is located in a preset area, and moving the X axis upwards for searching if the ratio of the white points is greater than a preset value; if the ratio of the white points is smaller than a preset value, moving the X axis downwards for searching; and when the white point ratio reaches a preset value, taking the current axis as the lower edge line of the light spot.
9. The method for adjusting an infrared touch light module according to claim 6, wherein the scale upper correction groove comprises a scale left upper correction groove and a scale right upper correction groove; the lower ruler edge correction groove comprises a lower ruler left edge correction groove and an upper ruler right edge correction groove; adjusting the correction light emitting device to obtain a height value of a single pixel on the left side of the planar bottom plate, a height value of a single pixel on the right side, an X-axis position on the left side and an X-axis position on the right side; adjusting the height of an optical mode emitter of the infrared touch product to obtain the left distance and the right distance between an optical plane formed by an optical signal emitted by the optical mode emitter and a display plane of the infrared touch product; and if the left distance and the right distance meet preset values, finishing height adjustment of the light mode emitter of the infrared touch product.
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