CN110968222A - Infrared touch screen tracking scanning method and device, electronic equipment and storage medium - Google Patents
Infrared touch screen tracking scanning method and device, electronic equipment and storage medium Download PDFInfo
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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
Abstract
The invention discloses an infrared touch screen tracking and scanning method, an infrared touch screen tracking and scanning device, electronic equipment and a storage medium, wherein the method comprises the following steps: the method comprises the steps of carrying out coverage scanning on an infrared touch screen according to a scanning rule to obtain a first light path signal, judging whether an infrared light path is shielded in the first light path signal, if the infrared light path is shielded, obtaining a tracking scanning area according to a tracking scanning area obtaining model and the first light path signal, carrying out tracking scanning on the infrared touch screen according to infrared light path information and the tracking scanning area to obtain a tracking scanning light path signal, and obtaining corresponding tracking touch point information according to voltage presetting and a touch judgment rule. By the method, when the infrared light path is shielded in the first light path signal, the determined tracking scanning area is subjected to tracking scanning, the scanning density of the tracking scanning is high, and the number of scanning light paths is small, so that the scanning time can be shortened, the precision of the acquired touch point is greatly improved, and the efficiency of scanning the infrared touch screen is improved.
Description
Technical Field
The invention relates to the technical field of computers, in particular to an infrared touch screen tracking and scanning method, an infrared touch screen tracking and scanning device, electronic equipment and a storage medium.
Background
Along with the gradual popularization of electronic products, electronic equipment with a touch screen is more and more favored by people, the touch operation of a user is sensed by scanning a touch sensor in the touch screen, the traditional scanning method is to perform periodic full-coverage scanning on the touch sensor when the screen is lightened, and because the parameters of all the touch sensors are required to be sequentially acquired during the full-coverage scanning, a certain time is required in the process, the interval from the touch operation of the user to the touch operation determination of the touch screen is longer, namely the touch operation of the user has the condition of longer operation delay. Therefore, the prior art method has the problem that the touch operation is delayed for a long time.
Disclosure of Invention
The embodiment of the invention provides a method and a device for tracking and scanning an infrared touch screen, electronic equipment and a storage medium, and aims to solve the problem of long touch operation delay in the prior art.
In a first aspect, an embodiment of the present invention provides a method for tracking and scanning an infrared touch screen, including:
covering and scanning the infrared touch screen according to a preset scanning rule to obtain a first light path signal;
judging whether an infrared light path is shielded in the first light path signal according to a preset voltage threshold value to obtain a light path judgment result;
if the light path judgment result indicates that no infrared light path in the first light path signal is shielded, returning to execute the step of performing coverage scanning on the infrared touch screen according to a preset scanning rule to obtain a first light path signal when a preset scanning time point is reached, wherein the scanning time point is a time point with a preset time limit of a scanning time interval of the first light path signal;
if the light path judgment result indicates that an infrared light path is blocked in the first light path signal, acquiring a model according to a preset tracking scanning area and acquiring a corresponding tracking scanning area according to the first light path signal;
tracking and scanning the infrared touch screen according to preset infrared light path information and the tracking and scanning area to obtain a tracking and scanning light path signal;
and acquiring tracking touch point information corresponding to the tracking scanning light path signal according to the voltage threshold and a preset touch judgment rule.
In a second aspect, an embodiment of the present invention provides an infrared touch screen tracking and scanning device, which includes:
the light path signal judgment unit is used for judging whether an infrared light path is shielded in the first light path signal according to a preset voltage threshold value so as to obtain a light path judgment result;
a return execution unit, configured to, if the light path determination result indicates that no infrared light path in the first light path signal is blocked, return to execute the step of performing overlay scanning on the infrared touch screen according to a preset scanning rule to obtain a first light path signal when a preset scanning time point is reached, where the scanning time point is a time point at which a time limit is preset with respect to a scanning time interval of the first light path signal;
a tracking scanning area obtaining unit, configured to obtain a corresponding tracking scanning area according to a preset tracking scanning area obtaining model and the first light path signal if the light path determination result indicates that an infrared light path in the first light path signal is blocked;
the tracking light path signal acquisition unit is used for tracking and scanning the infrared touch screen according to preset infrared light path information and the tracking and scanning area to obtain a tracking and scanning light path signal;
and the tracking touch point acquisition unit is used for acquiring tracking touch point information corresponding to the tracking scanning light path signal according to the voltage threshold and a preset touch judgment rule.
In a third aspect, an embodiment of the present invention further provides an electronic device, which includes a memory, a processor, an infrared touch screen, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the infrared touch screen tracking and scanning method according to the first aspect.
In a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and the computer program, when executed by a processor, causes the processor to execute the infrared touch screen tracking scanning method according to the first aspect.
The embodiment of the invention provides an infrared touch screen tracking and scanning method, an infrared touch screen tracking and scanning device, electronic equipment and a storage medium. The method comprises the steps of carrying out coverage scanning on an infrared touch screen according to a scanning rule to obtain a first light path signal, judging whether an infrared light path is shielded in the first light path signal, if the infrared light path is shielded, obtaining a tracking scanning area according to a tracking scanning area obtaining model and the first light path signal, carrying out tracking scanning on the infrared touch screen according to infrared light path information and the tracking scanning area to obtain a tracking scanning light path signal, and obtaining corresponding tracking touch point information according to voltage presetting and a touch judgment rule. By the method, when the infrared light path is shielded in the first light path signal, the determined tracking scanning area is subjected to tracking scanning, the scanning density of the tracking scanning is high, and the number of scanning light paths is small, so that the scanning time can be shortened, the precision of the acquired touch point is greatly improved, and the efficiency of scanning the infrared touch screen is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flowchart of a method for tracking and scanning an infrared touch screen according to an embodiment of the present invention;
fig. 2 is a schematic usage status diagram of an infrared touch screen tracking and scanning method according to an embodiment of the present invention;
fig. 3 is a schematic usage status diagram of an infrared touch screen tracking and scanning method according to an embodiment of the present invention;
fig. 4 is a schematic sub-flow chart of a tracking and scanning method for an infrared touch screen according to an embodiment of the present invention;
fig. 5 is a schematic sub-flow chart of a tracking scanning method for an infrared touch screen according to an embodiment of the present invention;
fig. 6 is a schematic sub-flow chart of a tracking scanning method for an infrared touch screen according to an embodiment of the present invention;
fig. 7 is another schematic flowchart of a tracking scanning method for an infrared touch screen according to an embodiment of the present invention;
FIG. 8 is a schematic block diagram of an infrared touch screen tracking and scanning device provided by an embodiment of the present invention;
fig. 9 is a schematic block diagram of an electronic device provided in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. 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 invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
Referring to fig. 1, fig. 1 is a schematic flowchart of a tracking and scanning method of an infrared touch screen according to an embodiment of the present invention. The method is implemented by application software installed in the electronic device, and the electronic device is a device for implementing the infrared touch screen tracking and scanning method to implement the tracking and scanning of the touch screen, such as a tablet computer, a mobile phone, a flat television, an intelligent wearable device (such as a smart watch and a smart bracelet) or a handwriting input tablet.
As shown in fig. 1, the method includes steps S110 to S160.
And S110, performing covering scanning on the infrared touch screen according to a preset scanning rule to obtain a first light path signal.
And performing covering scanning on the infrared touch screen according to a preset scanning rule to obtain a first light path signal. The infrared touch screen is a rectangle or square area, and the infrared touch screen contains the sending lamp and the receiving lamp, and the quantity of sending lamp equals with the receiving lamp, and the receiving lamp is located arbitrary one side in the upside or the downside of infrared touch screen and arbitrary one side in left side or the right side, and the sending lamp is just right with the receiving lamp, and the user can use hand, stylus or other parts to carry out touch operation on infrared touch screen. The method comprises the steps of controlling a transmitting lamp to transmit an infrared signal, controlling a receiving lamp right opposite to the transmitting lamp and receiving lamps at the periphery to receive the infrared signal, controlling a certain transmitting lamp to be lightened to transmit the infrared signal, obtaining the infrared signal received by the receiving lamp on a certain infrared light path corresponding to the transmitting lamp in a scanning rule, obtaining the voltage value of the infrared light path, and completing scanning on the infrared light path.
The preset scanning rule is a rule for scanning an infrared light path in the infrared touch screen, the transmitting lamps are sequentially lightened according to the scanning rule, the receiving lamps corresponding to the lightened transmitting lamps receive infrared voltage values, and then voltage values of the scanned infrared light path, namely first light path signals, are obtained, the first light path signals are voltage values obtained by scanning each set infrared light path in the scanning rule, the scanning includes forward scanning and oblique scanning, the infrared light path in the first light path signals includes voltage values of a transverse light path and a longitudinal light path, the transverse light path includes a horizontal light path and an oblique light path, and the longitudinal light path includes a vertical light path and an oblique light path. Because it takes a long time to scan all the infrared light paths contained in the infrared touch screen, the infrared light paths set by the scanning rule are sequentially scanned to meet the use requirement, and the infrared light paths in the scanning rule cover the infrared touch screen but cannot accurately position the touch operation.
Fig. 2 is a schematic view of a use state of an infrared touch screen tracking and scanning method according to an embodiment of the present invention, and as shown in fig. 2, in this embodiment, receiving lamps are located on the upper side and the left side of the infrared touch screen, and transmitting lamps are located on the right side and the lower side opposite to the receiving lamps. In fig. 2, the operation process of the lower side emission lamp of the infrared touch screen emitting an infrared signal to scan a longitudinal light path is illustrated, taking the emission lamp T9 as an example, the infrared signal emitted by the emission lamp is received by the receiving lamp R9 to obtain a voltage value of the vertical light path V9, and the infrared signal emitted by the emission lamp is received by the receiving lamp R5 to obtain a voltage value of the inclined light path L9.
S120, judging whether an infrared light path is shielded in the first light path signal according to a preset voltage threshold value to obtain a light path judgment result.
And judging whether an infrared light path is shielded in the first light path signal according to a preset voltage threshold value to obtain a light path judgment result. If the user performs touch operation on the infrared touch screen, the infrared light path passing through the touch point is blocked, so that whether the infrared light path is blocked in the first light path signal can be judged according to the voltage threshold value, and whether the infrared touch screen has touch operation is obtained.
In an embodiment, as shown in fig. 4, step S120 includes sub-steps S121, S122 and S123.
And S121, judging whether the voltage value of each infrared light path in the first light path signal is greater than a preset voltage threshold value.
And S122, if the voltage value of each infrared light path is greater than the voltage threshold, determining that the light path judgment result is that no infrared light path is blocked in the first light path signal.
And S123, if the voltage value of at least one infrared light path is not greater than the voltage threshold value, determining that the light path judgment result is that the infrared light path is blocked in the first light path signal.
Specifically, whether the voltage value of each infrared light path in the first light path signal is greater than a preset voltage threshold can be judged according to the preset voltage threshold, the voltage threshold is preset threshold information, and whether each infrared light path is shielded can be judged according to the voltage threshold. If a certain infrared light path is blocked, the voltage value corresponding to the infrared light path is obviously smaller than the voltage threshold, and if the certain infrared light path is not blocked, the voltage value corresponding to the infrared light path is larger than the voltage threshold. According to the judging method, if the voltage value of each infrared light path is greater than the voltage threshold value, the light path judging result is obtained, namely that no infrared light path is shielded in the first light path signal; and if the voltage value of at least one infrared light path is not greater than the voltage threshold value, obtaining a light path judgment result that the infrared light path is blocked in the first light path signal.
For example, if the voltage value of a certain infrared optical path is 35mV and the preset voltage threshold is 10mV, it is determined that the infrared optical path is not blocked.
S130, if the light path judgment result shows that no infrared light path is blocked in the first light path signal, returning to execute the step of performing coverage scanning on the infrared touch screen according to a preset scanning rule to obtain a first light path signal when a preset scanning time point is reached.
And if the light path judgment result indicates that no infrared light path is shielded in the first light path signal, returning to execute the step of performing coverage scanning on the infrared touch screen according to a preset scanning rule to obtain a first light path signal when a preset scanning time point is reached. If the light path judgment result is no, that is, if no infrared light path is blocked in the first light path signal, it indicates that there is no touch operation on the infrared touch screen, and when a scanning time point is reached, the step S110 is returned to, where the scanning time point is a time point at which a time limit is preset with respect to the scanning time interval of the first light path signal, that is, when there is no touch operation on the infrared touch screen, the infrared touch screen is periodically scanned according to a preset time limit and a preset scanning rule.
And S140, if the light path judgment result indicates that an infrared light path is blocked in the first light path signal, acquiring a corresponding tracking and scanning area according to a preset tracking and scanning area acquisition model and the first light path signal.
And if the light path judgment result indicates that an infrared light path is blocked in the first light path signal, acquiring a corresponding tracking and scanning area according to a preset tracking and scanning area acquisition model and the first light path signal. The tracking scanning area acquisition model comprises the touch judgment rule and the touch range. If the light path judgment result is yes, that is, the infrared light path is blocked in the first light path signal, it indicates that a touch operation is performed on the infrared touch screen, and at this time, the corresponding tracking scanning area needs to be obtained according to the tracking scanning area obtaining model.
In an embodiment, as shown in fig. 5, step S140 includes sub-steps S141 and S142.
And S141, acquiring corresponding touch position information according to the touch judgment rule and the first light path signal.
And acquiring corresponding touch position information according to the touch judgment rule and the first light path signal. And acquiring the shielded infrared light path and the unshielded infrared light path adjacent to the shielded infrared light path in the first light path signal, taking a central line between the shielded infrared light path and the unshielded infrared light path as a touch boundary according to the touch judgment rule, and acquiring the touch boundaries of the plurality of shielded infrared light paths to determine the specific position of the touch operation, namely acquiring the touch position information.
And S142, determining a tracking scanning area according to the touch range and the touch position information.
And determining a tracking scanning area according to the touch range and the touch position information. The obtained touch position information is an area containing a touch boundary, a central point of the touch position information can be obtained, a tracking scanning area can be determined according to the central point and the touch position information, a touch range is a range which can be touched in the infrared touch screen when a user carries out the next touch operation, and in the process that the user moves from the touch position information to the next touch point to carry out the touch operation, the maximum moving range can be predicted according to the interval time between two times of scanning of the infrared touch screen, so that the touch range can be set as the maximum moving range which the user can move to when the user carries out the touch operation. Specifically, the touch range includes height information and width information, the length of the tracking and scanning area is obtained by performing lateral expansion on the central point of the touch position information according to the width information, and the height of the tracking and scanning area is obtained by performing longitudinal expansion on the central point of the touch position information according to the height information.
FIG. 3 is a schematic diagram of a usage status of an infrared touch screen tracking scanning method according to an embodiment of the present invention, as shown in FIG. 3, (x) in FIG. 30，y0) Namely, corresponding to the coordinate value of the central point of the obtained touch position information, the central point is transversely expanded to obtain a coordinate point a of the left boundary of the tracking scanning area1The coordinate point of the right boundary is a2(ii) a Longitudinally expanding the central point to obtain a coordinate point b of the upper boundary of the tracking scanning area1B is the coordinate point of the lower boundary2。
S150, tracking and scanning the infrared touch screen according to preset infrared light path information and the tracking and scanning area to obtain a tracking and scanning light path signal.
And tracking and scanning the infrared touch screen according to preset infrared light path information and the tracking and scanning area to obtain a tracking and scanning light path signal. The number of the infrared light paths contained in the preset infrared light path information is larger than that of the infrared light paths in the scanning rule, the corresponding infrared light path to be scanned can be determined according to the infrared light path information and the tracking scanning area, the scanning density of the infrared light path to be scanned is higher than that in the scanning rule, and fine scanning of the tracking scanning area in the infrared touch screen can be achieved to obtain a tracking scanning light path signal.
In one embodiment, as shown in fig. 6, step S150 includes sub-steps S151, S152, and S153.
And S151, judging whether the infrared light path contained in the infrared light path information passes through the tracking scanning area or not according to the tracking scanning area.
And judging whether the infrared light path contained in the infrared light path information passes through the tracking scanning area or not according to the tracking scanning area. The infrared light path included in the infrared light path information may be divided into a transverse light path and a longitudinal light path, and the maximum inclination angle of the inclined light path in the transverse light path is θ shown in fig. 3xThe maximum inclination angle of the inclined optical path in the longitudinal optical path is θ shown in FIG. 3yAnd judging whether each infrared light path contained in the infrared light path information passes through the tracking scanning area or not to obtain a judgment result of each infrared light path.
S152, if the infrared light path in the infrared light path information passes through the tracking scanning area, determining the infrared light path as the infrared light path to be scanned.
And if the infrared light path in the infrared light path information passes through the tracking scanning area, determining the infrared light path as the infrared light path to be scanned. If a certain infrared light path in the infrared light path information passes through the tracking scanning area, determining the infrared light path as an infrared light path to be scanned; if a certain infrared light path does not pass through the tracking scanning area, the infrared light path does not need to be scanned in the scanning process.
And S153, tracking and scanning the infrared light path to be scanned to obtain a corresponding tracking and scanning light path signal.
And tracking and scanning the infrared light path to be scanned to obtain a corresponding tracking and scanning light path signal. And tracking and scanning the to-be-scanned infrared light path to obtain the voltage value of each to-be-scanned infrared light path, namely obtaining a tracking and scanning light path signal.
For example, as shown in fig. 3, it is determined that the emission lamps T3, T4, T5, T6, and T7 on the X axis are required for the tracking scan according to the infrared light path to be scanned, the emission lamps T0, T1, T2, T3, T4, T5, and T6 on the Y axis are required to receive the voltage value corresponding to the infrared light path to be scanned by using the receiving lamps R2, R3, R4, and R5 on the X axis, and the voltage value corresponding to the infrared light path to be scanned by using the receiving lamps R3, R4, R5, R6, and R7 on the Y axis.
And S160, acquiring tracking touch point information corresponding to the tracking scanning light path signal according to the voltage threshold and a preset touch judgment rule.
And acquiring tracking touch point information corresponding to the tracking scanning light path signal according to the voltage threshold and a preset touch judgment rule. The tracking scanning light path signal comprises a plurality of infrared light paths, the voltage value of each infrared light path in the tracking scanning light path signal is judged according to a voltage threshold value, if the voltage value of each infrared light path is larger than the voltage threshold value, it is indicated that no touch operation exists in the tracking scanning area on the infrared touch screen at the moment, and the obtained tracking touch point information does not comprise a touch point; if the voltage value of at least one infrared light path is not greater than the voltage threshold value, it indicates that touch operation exists in the tracking scanning area on the infrared touch screen at the moment, and the obtained tracking touch point information includes a touch point. The method comprises the steps of determining an infrared light path with a voltage value not greater than a voltage threshold value in a tracking scanning light path signal as a shielded light path, obtaining the shielded infrared light path and an unshielded infrared light path adjacent to the shielded infrared light path in the tracking scanning light path signal, taking a center line between the shielded infrared light path and the unshielded infrared light path as a touch boundary of a tracking touch point according to a touch judgment rule, obtaining the touch boundaries of a plurality of shielded infrared light paths, and determining the specific position of touch operation, namely obtaining the information of the tracking touch point. Because the scanning density of the tracking touch point information is higher than that of the first light path signal, and the scanning light path is less than that of the first light path signal, the obtained tracking touch point information is more accurate, the scanning time is shorter, namely, the touch point of the touch operation of the user in the infrared touch screen can be accurately determined, and the speed of obtaining the touch point is improved.
In one embodiment, as shown in fig. 7, steps S170 and S180 are further included after step S160.
S170, if the touch point information does not contain the touch point, returning to the step of executing the covering scanning of the infrared touch screen according to the preset scanning rule to obtain a first light path signal.
And if the tracking touch point information does not contain the touch point, returning to execute the step of performing covering scanning on the infrared touch screen according to a preset scanning rule to obtain a first light path signal. If the tracking touch point information does not include the touch point, the infrared touch screen is continuously scanned according to the scanning rule, that is, the step S110 is executed again.
And S180, if the tracking touch point information contains a touch point, taking the tracking touch point information as touch position information and returning to execute the step of determining a tracking scanning area according to the touch range and the touch position information.
If the tracking touch point information includes a touch point, the tracking touch point information is used as touch position information, and the step of determining the tracking scanning area according to the touch range and the touch position information is returned to be executed, that is, the step S140 is returned to be executed. And if the tracking touch point information contains the touch point, taking the tracking touch point information as touch position information, and determining the tracking scanning area again, namely determining the range which is possibly touched in the infrared touch screen when the user performs the next touch operation based on the obtained tracking touch point information, and performing tracking scanning on the infrared touch screen again based on the new tracking scanning area.
According to the infrared touch screen tracking and scanning method provided by the embodiment of the invention, the infrared touch screen is subjected to coverage scanning according to the scanning rule to obtain a first light path signal, whether an infrared light path is blocked in the first light path signal or not is judged, if the infrared light path is blocked, a tracking scanning area is obtained according to a tracking scanning area obtaining model and the first light path signal, the infrared touch screen is subjected to tracking scanning according to infrared light path information and the tracking scanning area to obtain a tracking scanning light path signal, and corresponding tracking touch point information is obtained according to voltage presetting and a touch judgment rule. By the method, when the infrared light path is shielded in the first light path signal, the determined tracking scanning area is subjected to tracking scanning, the scanning density of the tracking scanning is high, and the number of scanning light paths is small, so that the scanning time can be shortened, the precision of the acquired touch point is greatly improved, and the efficiency of scanning the infrared touch screen is improved.
The embodiment of the invention also provides an infrared touch screen tracking and scanning device, which is used for executing any embodiment of the infrared touch screen tracking and scanning method. Specifically, please refer to fig. 8, fig. 8 is a schematic block diagram of an infrared touch screen tracking and scanning apparatus according to an embodiment of the present invention. The infrared touch screen tracking and scanning device can be configured in an electronic device with an infrared touch screen.
As shown in fig. 8, the infrared touch screen tracking scanning apparatus 100 includes an overlay scanning unit 110, a light path signal determination unit 120, a return execution unit 130, a tracking scanning area acquisition unit 140, a tracking light path signal acquisition unit 150, and a tracking touch point acquisition unit 160.
And the coverage scanning unit 110 is configured to perform coverage scanning on the infrared touch screen according to a preset scanning rule to obtain a first light path signal.
The light path signal determining unit 120 is configured to determine whether an infrared light path is blocked in the first light path signal according to a preset voltage threshold to obtain a light path determination result.
In another embodiment of the present invention, the optical path signal determining unit 120 includes a sub-unit: the device comprises a voltage value judging unit, a first judging result acquiring unit and a second judging result acquiring unit.
The voltage value judging unit is used for judging whether the voltage value of each infrared light path in the first light path signal is greater than a preset voltage threshold value; a first determination result obtaining unit, configured to determine that the light path determination result is that no infrared light path in the first light path signal is blocked if the voltage value of each infrared light path is greater than the voltage threshold; and the second judgment result acquisition unit is used for determining that the optical path judgment result is that the infrared optical path is blocked in the first optical path signal if the voltage value of at least one infrared optical path is not greater than the voltage threshold value.
And a return execution unit 130, configured to, if the light path determination result indicates that no infrared light path in the first light path signal is blocked, return to execute the step of performing overlay scanning on the infrared touch screen according to a preset scanning rule to obtain a first light path signal when a preset scanning time point is reached, where the scanning time point is a time point at which a preset time limit is set between the scanning time point and a scanning time interval of the first light path signal.
A tracking and scanning area obtaining unit 140, configured to obtain a corresponding tracking and scanning area according to a preset tracking and scanning area obtaining model and the first optical path signal if the optical path determination result indicates that an infrared optical path is blocked in the first optical path signal.
In other embodiments of the present invention, the tracking scan area acquiring unit 140 includes sub-units: a touch position information acquisition unit and a tracking scan area determination unit.
The touch position information acquisition unit is used for acquiring corresponding touch position information according to the touch judgment rule and the first light path signal; and the tracking scanning area determining unit is used for determining a tracking scanning area according to the touch range and the touch position information.
And the tracking light path signal acquiring unit 150 is configured to perform tracking scanning on the infrared touch screen according to preset infrared light path information and the tracking scanning area to obtain a tracking scanning light path signal.
In other embodiments of the present invention, the tracking optical path signal acquiring unit 150 includes sub-units: the device comprises an infrared light path judgment unit, an infrared light path to be scanned determination unit and a tracking scanning unit.
The infrared light path judging unit is used for judging whether the infrared light path contained in the infrared light path information passes through the tracking scanning area or not according to the tracking scanning area; the to-be-scanned infrared light path determining unit is used for determining the infrared light path as the to-be-scanned infrared light path if the infrared light path in the infrared light path information passes through the tracking scanning area; and the tracking scanning unit is used for tracking and scanning the infrared light path to be scanned to acquire a corresponding tracking and scanning light path signal.
And a tracking touch point obtaining unit 160, configured to obtain tracking touch point information corresponding to the tracking scanning optical path signal according to the voltage threshold and a preset touch determination rule.
In other embodiments of the present invention, the infrared touch screen tracking and scanning device 100 further includes a sub-unit: a first return unit and a second return unit.
The first returning unit is used for returning to execute the step of performing covering scanning on the infrared touch screen according to a preset scanning rule to obtain a first light path signal if the tracking touch point information does not contain a touch point; and the second returning unit is used for taking the tracking touch point information as touch position information and returning to execute the step of determining the tracking scanning area according to the touch range and the touch position information if the tracking touch point information contains a touch point.
The infrared touch screen tracking and scanning device provided by the embodiment of the invention is used for executing the infrared touch screen tracking and scanning method, and the infrared touch screen is subjected to coverage scanning according to the scanning rule to obtain a first light path signal, whether an infrared light path is shielded in the first light path signal is judged, if the infrared light path is shielded, a tracking and scanning area is obtained according to a tracking and scanning area obtaining model and the first light path signal, the infrared touch screen is subjected to tracking and scanning according to infrared light path information and the tracking and scanning area to obtain a tracking and scanning light path signal, and corresponding tracking and scanning point information is obtained according to voltage presetting and a touch judgment rule. By the method, when the infrared light path is shielded in the first light path signal, the determined tracking scanning area is subjected to tracking scanning, the scanning density of the tracking scanning is high, and the number of scanning light paths is small, so that the scanning time can be shortened, the precision of the acquired touch point is greatly improved, and the efficiency of scanning the infrared touch screen is improved.
The above-mentioned infrared touch screen tracking scanning device may be implemented in the form of a computer program, which may be run on an electronic device as shown in fig. 9.
Referring to fig. 9, fig. 9 is a schematic block diagram of an electronic device according to an embodiment of the invention.
Referring to fig. 9, the electronic device 500 includes a processor 502, a memory, and an infrared touch screen 505 connected by a system bus 501, wherein the memory may include a non-volatile storage medium 503 and an internal memory 504.
The non-volatile storage medium 503 may store an operating system 5031 and a computer program 5032. The computer program 5032, when executed, may cause the processor 502 to perform an infrared touch screen tracking scan method.
The processor 502 is used to provide computing and control capabilities that support the operation of the overall electronic device 500.
The internal memory 504 provides an environment for the operation of the computer program 5032 in the non-volatile storage medium 503, and when the computer program 5032 is executed by the processor 502, the processor 502 can be enabled to execute the infrared touch screen tracking scanning method.
The infrared touch screen 505 is used for receiving a touch operation of a user, and the user can perform the touch operation on the infrared touch screen 505 by using a hand, a stylus pen or other components. It will be understood by those skilled in the art that the structure shown in fig. 9 is a block diagram of only a portion of the structure associated with the inventive arrangements, and does not constitute a limitation on the electronic device 500 to which the inventive arrangements are applied, as a particular electronic device 500 may include more or less components than those shown, or combine certain components, or have a different arrangement of components.
Wherein the processor 502 is configured to run the computer program 5032 stored in the memory to implement the following functions: covering and scanning the infrared touch screen according to a preset scanning rule to obtain a first light path signal; judging whether an infrared light path is shielded in the first light path signal according to a preset voltage threshold value to obtain a light path judgment result; if the light path judgment result indicates that no infrared light path in the first light path signal is shielded, returning to execute the step of performing coverage scanning on the infrared touch screen according to a preset scanning rule to obtain a first light path signal when a preset scanning time point is reached, wherein the scanning time point is a time point with a preset time limit of a scanning time interval of the first light path signal; if the light path judgment result indicates that an infrared light path is blocked in the first light path signal, acquiring a model according to a preset tracking scanning area and acquiring a corresponding tracking scanning area according to the first light path signal; tracking and scanning the infrared touch screen according to preset infrared light path information and the tracking and scanning area to obtain a tracking and scanning light path signal; and acquiring tracking touch point information corresponding to the tracking scanning light path signal according to the voltage threshold and a preset touch judgment rule.
In an embodiment, when the processor 502 performs the step of determining whether the infrared optical path is blocked in the first optical path signal according to a preset voltage threshold to obtain the optical path determination result, the following operations are performed: judging whether the voltage value of each infrared light path in the first light path signal is greater than the voltage threshold value; if the voltage value of each infrared light path is greater than the voltage threshold value, determining that the light path judgment result is that no infrared light path is shielded in the first light path signal; and if the voltage value of at least one infrared light path is not greater than the voltage threshold value, determining that the light path judgment result is that the infrared light path is blocked in the first light path signal.
In an embodiment, when the processor 502 executes the step of acquiring a corresponding tracking and scanning area according to a preset tracking and scanning area acquisition model and the first optical path signal if the optical path determination result indicates that the infrared optical path in the first optical path signal is blocked, the following operations are executed: acquiring corresponding touch position information according to the touch judgment rule and the first light path signal; and determining a tracking scanning area according to the touch range and the touch position information.
In an embodiment, when the processor 502 performs the step of performing tracking scanning on the infrared touch screen according to preset infrared optical path information and the tracking scanning area to obtain a tracking scanning optical path signal, the following operations are performed: judging whether the infrared light path contained in the infrared light path information passes through the tracking scanning area or not according to the tracking scanning area; if the infrared light path in the infrared light path information passes through the tracking scanning area, determining the infrared light path as an infrared light path to be scanned; and tracking and scanning the infrared light path to be scanned to obtain a corresponding tracking and scanning light path signal.
In an embodiment, after the step of acquiring the tracking touch point information corresponding to the tracking scanning optical path signal according to the voltage threshold and a preset touch determination rule is executed, the processor 502 further executes the following operations: if the tracking touch point information does not contain a touch point, returning to the step of executing the covering scanning of the infrared touch screen according to the preset scanning rule to obtain a first light path signal; and if the tracking touch point information contains a touch point, taking the tracking touch point information as touch position information and returning to execute the step of determining a tracking scanning area according to the touch range and the touch position information.
Those skilled in the art will appreciate that the embodiment of the electronic device shown in fig. 9 does not constitute a limitation on the specific construction of the electronic device, and in other embodiments the electronic device may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. For example, in some embodiments, the electronic device may only include a memory, a processor, and an infrared touch screen, and in such embodiments, the structures and functions of the memory, the processor, and the infrared touch screen are consistent with those of the embodiment shown in fig. 9, and are not described herein again.
It should be understood that, in the embodiment of the present invention, the Processor 502 may be a Central Processing Unit (CPU), and the Processor 502 may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable gate arrays (FPGAs) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. Wherein a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
In another embodiment of the invention, a computer-readable storage medium is provided. The computer readable storage medium may be a non-volatile computer readable storage medium. The computer-readable storage medium stores a computer program, wherein the computer program when executed by a processor implements the steps of: covering and scanning the infrared touch screen according to a preset scanning rule to obtain a first light path signal; judging whether an infrared light path is shielded in the first light path signal according to a preset voltage threshold value to obtain a light path judgment result; if the light path judgment result indicates that no infrared light path in the first light path signal is shielded, returning to execute the step of performing coverage scanning on the infrared touch screen according to a preset scanning rule to obtain a first light path signal when a preset scanning time point is reached, wherein the scanning time point is a time point with a preset time limit of a scanning time interval of the first light path signal; if the light path judgment result indicates that an infrared light path is blocked in the first light path signal, acquiring a model according to a preset tracking scanning area and acquiring a corresponding tracking scanning area according to the first light path signal; tracking and scanning the infrared touch screen according to preset infrared light path information and the tracking and scanning area to obtain a tracking and scanning light path signal; and acquiring tracking touch point information corresponding to the tracking scanning light path signal according to the voltage threshold and a preset touch judgment rule.
In an embodiment, the step of determining whether the infrared optical path is blocked in the first optical path signal to obtain the optical path determination result includes: judging whether the voltage value of each infrared light path in the first light path signal is greater than the voltage threshold value; if the voltage value of each infrared light path is greater than the voltage threshold value, determining that the light path judgment result is that no infrared light path is shielded in the first light path signal; and if the voltage value of at least one infrared light path is not greater than the voltage threshold value, determining that the light path judgment result is that the infrared light path is blocked in the first light path signal.
In an embodiment, if the light path determination result indicates that an infrared light path in the first light path signal is blocked, the step of obtaining a corresponding tracking and scanning area according to a preset tracking and scanning area obtaining model and the first light path signal includes: acquiring corresponding touch position information according to the touch judgment rule and the first light path signal; and determining a tracking scanning area according to the touch range and the touch position information.
In an embodiment, the step of performing tracking scanning on the infrared touch screen according to preset infrared light path information and the tracking scanning area to obtain a tracking scanning light path signal includes: judging whether the infrared light path contained in the infrared light path information passes through the tracking scanning area or not according to the tracking scanning area; if the infrared light path in the infrared light path information passes through the tracking scanning area, determining the infrared light path as an infrared light path to be scanned; and tracking and scanning the infrared light path to be scanned to obtain a corresponding tracking and scanning light path signal.
In an embodiment, after the step of obtaining tracking touch point information corresponding to the tracking scanning optical path signal according to the voltage threshold and a preset touch determination rule, the method further includes: if the tracking touch point information does not contain a touch point, returning to the step of executing the covering scanning of the infrared touch screen according to the preset scanning rule to obtain a first light path signal; and if the tracking touch point information contains a touch point, taking the tracking touch point information as touch position information and returning to execute the step of determining a tracking scanning area according to the touch range and the touch position information.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses, devices and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided by the present invention, it should be understood that the disclosed apparatus, device and method can be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only a logical division, and there may be other divisions when the actual implementation is performed, or units having the same function may be grouped into one unit, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may also be an electric, mechanical or other form of connection.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be substantially or partially contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a computer-readable storage medium and includes instructions for causing an electronic device to execute all or part of the steps of the method according to the embodiments of the present invention. The computer-readable storage medium is a physical non-transitory storage medium, the computer-readable storage medium is a non-volatile storage medium, and the computer-readable storage medium may be an internal storage unit of the foregoing device, for example, a physical storage medium such as a hard disk or a memory of the device. The storage medium may also be an external storage device of the device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a flash Card (FlashCard) or other physical storage Media provided on the device.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An infrared touch screen tracking and scanning method is applied to an electronic device with an infrared touch screen, and the method comprises the following steps:
covering and scanning the infrared touch screen according to a preset scanning rule to obtain a first light path signal;
judging whether an infrared light path is shielded in the first light path signal according to a preset voltage threshold value to obtain a light path judgment result;
if the light path judgment result indicates that no infrared light path in the first light path signal is shielded, returning to execute the step of performing coverage scanning on the infrared touch screen according to a preset scanning rule to obtain a first light path signal when a preset scanning time point is reached, wherein the scanning time point is a time point with a preset time limit of a scanning time interval of the first light path signal;
if the light path judgment result indicates that an infrared light path is blocked in the first light path signal, acquiring a model according to a preset tracking scanning area and acquiring a corresponding tracking scanning area according to the first light path signal;
tracking and scanning the infrared touch screen according to preset infrared light path information and the tracking and scanning area to obtain a tracking and scanning light path signal;
and acquiring tracking touch point information corresponding to the tracking scanning light path signal according to the voltage threshold and a preset touch judgment rule.
2. The method for tracking and scanning the infrared touch screen according to claim 1, wherein the determining whether the infrared light path is blocked in the first light path signal according to a preset voltage threshold to obtain a light path determination result comprises:
judging whether the voltage value of each infrared light path in the first light path signal is greater than the voltage threshold value;
if the voltage value of each infrared light path is greater than the voltage threshold value, determining that the light path judgment result is that no infrared light path is shielded in the first light path signal;
and if the voltage value of at least one infrared light path is not greater than the voltage threshold value, determining that the light path judgment result is that the infrared light path is blocked in the first light path signal.
3. The method according to claim 1, wherein the tracking and scanning area obtaining model includes the touch determination rule and a touch range, and the obtaining of the corresponding tracking and scanning area according to the preset tracking and scanning area obtaining model and the first optical path signal includes:
acquiring corresponding touch position information according to the touch judgment rule and the first light path signal;
and determining a tracking scanning area according to the touch range and the touch position information.
4. The method for tracking and scanning the infrared touch screen according to claim 1, wherein the performing tracking scanning on the infrared touch screen according to preset infrared light path information and the tracking and scanning area to obtain a tracking and scanning light path signal comprises:
judging whether the infrared light path contained in the infrared light path information passes through the tracking scanning area or not according to the tracking scanning area;
if the infrared light path in the infrared light path information passes through the tracking scanning area, determining the infrared light path as an infrared light path to be scanned;
and tracking and scanning the infrared light path to be scanned to obtain a corresponding tracking and scanning light path signal.
5. The method according to claim 3, wherein after obtaining the tracking touch point information corresponding to the tracking scanning optical path signal according to the voltage threshold and a preset touch judgment rule, the method further comprises:
if the tracking touch point information does not contain a touch point, returning to the step of executing the covering scanning of the infrared touch screen according to the preset scanning rule to obtain a first light path signal;
and if the tracking touch point information contains a touch point, taking the tracking touch point information as touch position information and returning to execute the step of determining a tracking scanning area according to the touch range and the touch position information.
6. An infrared touch screen tracking and scanning device, comprising:
the coverage scanning unit is used for performing coverage scanning on the infrared touch screen according to a preset scanning rule to obtain a first light path signal;
the light path signal judgment unit is used for judging whether an infrared light path is shielded in the first light path signal according to a preset voltage threshold value so as to obtain a light path judgment result;
a return execution unit, configured to, if the light path determination result indicates that no infrared light path in the first light path signal is blocked, return to execute the step of performing overlay scanning on the infrared touch screen according to a preset scanning rule to obtain a first light path signal when a preset scanning time point is reached, where the scanning time point is a time point at which a time limit is preset with respect to a scanning time interval of the first light path signal;
a tracking scanning area obtaining unit, configured to obtain a corresponding tracking scanning area according to a preset tracking scanning area obtaining model and the first light path signal if the light path determination result indicates that an infrared light path in the first light path signal is blocked;
the tracking light path signal acquisition unit is used for tracking and scanning the infrared touch screen according to preset infrared light path information and the tracking and scanning area to obtain a tracking and scanning light path signal;
and the tracking touch point acquisition unit is used for acquiring tracking touch point information corresponding to the tracking scanning light path signal according to the voltage threshold and a preset touch judgment rule.
7. The infrared touch screen tracking and scanning device of claim 6, wherein the light path signal determination unit comprises:
the voltage value judging unit is used for judging whether the voltage value of each infrared light path in the first light path signal is greater than a preset voltage threshold value;
a first determination result obtaining unit, configured to determine that the light path determination result is that no infrared light path in the first light path signal is blocked if the voltage value of each infrared light path is greater than the voltage threshold;
and the second judgment result acquisition unit is used for determining that the optical path judgment result is that the infrared optical path is blocked in the first optical path signal if the voltage value of at least one infrared optical path is not greater than the voltage threshold value.
8. The infrared touch screen tracking and scanning device of claim 6, wherein the tracking and scanning area obtaining unit comprises:
the touch position information acquisition unit is used for acquiring corresponding touch position information according to the touch judgment rule and the first light path signal;
and the tracking scanning area determining unit is used for determining a tracking scanning area according to the touch range and the touch position information.
9. An electronic device comprising a memory, a processor, an infrared touch screen, and a computer program stored on the memory and executable on the processor, wherein the processor implements the infrared touch screen tracking scanning method according to any one of claims 1 to 5 when executing the computer program.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which, when executed by a processor, causes the processor to execute the infrared touch screen tracking scanning method of any one of claims 1 to 5.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116719439A (en) * | 2022-09-27 | 2023-09-08 | 广州众远智慧科技有限公司 | Infrared signal scanning method and device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0897161A1 (en) * | 1997-08-07 | 1999-02-17 | Fujitsu Limited | Optical scanning-type touch panel |
| JP2015041363A (en) * | 2013-08-23 | 2015-03-02 | コニカミノルタ株式会社 | Touch panel input device |
| CN105302380A (en) * | 2015-12-02 | 2016-02-03 | 青岛海信电器股份有限公司 | Touch point obtaining method, infrared touch device and touch screen equipment |
| CN105975139A (en) * | 2016-05-11 | 2016-09-28 | 青岛海信电器股份有限公司 | Touch point extraction method, device and display equipment |
| CN106020566A (en) * | 2016-05-05 | 2016-10-12 | 广州华欣电子科技有限公司 | Scanning method and device for infrared touch screen |
| CN106354344A (en) * | 2016-09-14 | 2017-01-25 | 青岛海信电器股份有限公司 | Method for detecting touch positions in infrared touch screen and terminal equipment |
| CN109597524A (en) * | 2018-11-30 | 2019-04-09 | 青岛海信商用显示股份有限公司 | Touch detecting method, touch detecting apparatus and touch control display apparatus |
-
2019
- 2019-12-13 CN CN201911289456.3A patent/CN110968222B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0897161A1 (en) * | 1997-08-07 | 1999-02-17 | Fujitsu Limited | Optical scanning-type touch panel |
| JP2015041363A (en) * | 2013-08-23 | 2015-03-02 | コニカミノルタ株式会社 | Touch panel input device |
| CN105302380A (en) * | 2015-12-02 | 2016-02-03 | 青岛海信电器股份有限公司 | Touch point obtaining method, infrared touch device and touch screen equipment |
| CN106020566A (en) * | 2016-05-05 | 2016-10-12 | 广州华欣电子科技有限公司 | Scanning method and device for infrared touch screen |
| CN105975139A (en) * | 2016-05-11 | 2016-09-28 | 青岛海信电器股份有限公司 | Touch point extraction method, device and display equipment |
| CN106354344A (en) * | 2016-09-14 | 2017-01-25 | 青岛海信电器股份有限公司 | Method for detecting touch positions in infrared touch screen and terminal equipment |
| CN109597524A (en) * | 2018-11-30 | 2019-04-09 | 青岛海信商用显示股份有限公司 | Touch detecting method, touch detecting apparatus and touch control display apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116719439A (en) * | 2022-09-27 | 2023-09-08 | 广州众远智慧科技有限公司 | Infrared signal scanning method and device |
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|---|---|
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