CN106055143B - Touch point position detection method and system - Google Patents
Touch point position detection method and system Download PDFInfo
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- CN106055143B CN106055143B CN201610344966.6A CN201610344966A CN106055143B CN 106055143 B CN106055143 B CN 106055143B CN 201610344966 A CN201610344966 A CN 201610344966A CN 106055143 B CN106055143 B CN 106055143B
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- 238000001514 detection method Methods 0.000 title abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 25
- 230000008859 change Effects 0.000 claims abstract description 19
- 238000012544 monitoring process Methods 0.000 claims abstract description 13
- 230000000284 resting effect Effects 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 2
- 238000005314 correlation function Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
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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
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03547—Touch pads, in which fingers can move on a surface
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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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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention relates to a method and a system for detecting the position of a touch point, wherein the method for detecting the position of the touch point comprises the following steps: monitoring touch point coordinate information identified by a touch frame in touch operation; when the coordinate information of the touch point is not changed, identifying the relative coordinate movement amount generated by the touch operation through a relative coordinate identification technology, and adding the relative coordinate movement amount and the coordinate information of the touch point to determine the current touch point position of the touch operation; updating the touch point coordinate information identified by the touch frame according to the current touch point position; the touch screen can detect the position change of the touch point caused by small-amplitude action of touch operation, and has higher position detection precision.
Description
Technical field
The present invention relates to touch recognition technical fields, more particularly to a kind of touch point method for detecting position and system.
Background technique
It is higher and higher to have frequency of the touch apparatus such as the touch screen of touch recognition function in various electronic equipments, because
It is easy to operate, facilitates the advantages that operation and the favor by numerous users.Under normal conditions, touch apparatus can be red by its
The touching box that outline border etc. can incude touch point position identifies corresponding touch operation, to obtain the touch of touch operation
The location informations such as point coordinate.
However, the movement range of the touch operation on touch apparatus is smaller, such as when moving distance is less than 6 millimeters, accordingly
Touching box be just difficult to detect touch point change in location corresponding to touch operation, cause touch point position detection accuracy low.
Summary of the invention
Based on this, it is necessary to for the low technical problem of touch point position detection accuracy in traditional scheme, provide a kind of touching
Touch a method for detecting position and system.
A kind of touch point method for detecting position, includes the following steps:
In touch operation, the touch point coordinate information of monitoring touching box identification；
When the touch point coordinate information does not generate variation, identify that the touch is grasped by relative coordinate identification technology
Make the relative coordinate amount of movement generated, the relative coordinate amount of movement is added with touch point coordinate information and determines the touch behaviour
The current touch point position of work；
The touch point coordinate information identified according to touching box described in the current touch point location updating.
Above-mentioned touch point method for detecting position does not generate variation in touching box identification touch point coordinate information, that is, touches
It is smaller to operate moving distance, when touching box is difficult to corresponding touch point change in location, relative coordinate identification technology can be passed through
It identifies the relative coordinate amount of movement that above-mentioned touch operation generates, it was identified that touch point coordinate information was added with touching box originally,
With the current touch point position of the determination touch operation, and then utilize the identification touching of above-mentioned current touch point location updating touching box
A coordinate information is touched, touch operation is can detecte and acts caused touch point change in location by a small margin, it is with higher
Position detection accuracy.
In one embodiment, above-mentioned to identify that the opposite of touch operation generation is sat by relative coordinate identification technology
During marking amount of movement, when touching box identification touch point coordinate information generates variation, stopping is executed to be identified by relative coordinate
Technology identifies the step of relative coordinate amount of movement that the touch operation generates, and the touching box is identified touch point coordinate information
It is determined as the current touch point position of the touch operation.
In the present embodiment, when the increase of touch operation mobile range, so that touching box is accurately identified corresponding touch point and sit
When marking information, continues with touching box and carry out the identification of touch point position, it is ensured that its recognition efficiency.
In one embodiment, when the touch point coordinate information does not generate variation, the touching box stops identification
Touch point coordinate information, and execute the relative coordinate amount of movement that the touch operation generation is identified by relative coordinate identification technology
The step of.
The present embodiment is smaller in touch operation moving distance, when touching box is difficult to corresponding touch point change in location, control
Touching box processed stops identification touch point coordinate information, is detected by way of obtaining the relative coordinate amount of movement that touch operation generates
Dot position information is touched, on the basis of improving touch point position detection accuracy, the loss of touching box can be reduced, is realized related
The saving of energy.
As one embodiment, the relative coordinate that the touch operation generates is identified above by relative coordinate identification technology
After the step of amount of movement further include:
The moving distance that touch operation is determined according to the relative coordinate amount of movement, detect the moving distance whether be more than
Preset distance threshold；
Identify that the relative coordinate that the touch operation generates is mobile by relative coordinate identification technology if so, stopping executing
The step of amount, and utilize the touch point coordinate information of touching box identification touch operation.
The present embodiment is sufficiently large in the moving distance of touch operation, and touching box can accurately identify corresponding touch point coordinate
When information, continues with touching box and carry out the identification of touch point position, recognition speed and efficiency can be improved.
In one embodiment, the relative coordinate for identifying that the touch operation is generated by relative coordinate identification technology
The step of amount of movement includes:
The motion track of the touch operation on touch screen is obtained using preset photographic device under a touch screen；
Current location and the initial position of touch operation are obtained in the motion track；
The relative coordinate amount of movement that touch operation generates is determined according to the current location and initial position.
The present embodiment obtains the motion track of touch operation using photographic device, and then determines that corresponding relative coordinate is mobile
Amount makes the accuracy with higher of identified relative coordinate amount of movement.
It is described to obtain the touch behaviour on touch screen using preset photographic device under a touch screen as one embodiment
The process of the motion track of work includes:
It is taken pictures with setpoint frequency control photographic device to the corresponding touch point of touch operation, obtains multiple touch points
Set photo；
The motion track of the touch operation is determined according to each touch point position photo and photo opporunity.
It is described to obtain the touch behaviour on touch screen using preset photographic device under a touch screen as one embodiment
After the step of motion track of work further include:
After detecting that the touch point quiescent time on the motion track is more than preset time threshold, in the movement
The resting position of the touch point is searched in track；
Determine that touch operation is produced by resting position according to the initial position in the resting position and the motion track
Raw relative coordinate amount of movement.
The present embodiment obtains the corresponding relative coordinate amount of movement of touch point resting position on motion track, i.e. relative coordinate
In amount of movement identification process, it is static to can be used for above-mentioned touch point for the corresponding relative coordinate amount of movement in the stop place of touch operation
The touching position information of position detects, and the touch stop dot position information during touch operation is enable sufficiently to be detected, into
The perfect touch dot position information detection function of one step.
In one embodiment, described in touch operation, monitoring touching box identification touch point coordinate information the step of
Before further include:
The coordinate system of touch apparatus is established according to the dimension information of touch apparatus；
The reference point of the touch apparatus is selected in the coordinate system.
A kind of touch point position detecting system, comprising:
Monitoring modular, for the touch point coordinate information that in touch operation, monitoring touching box is identified；
Determining module, for passing through relative coordinate identification technology when the touch point coordinate information does not generate variation
It identifies the relative coordinate amount of movement that the touch operation generates, the relative coordinate amount of movement is added with touch point coordinate information
Determine the current touch point position of the touch operation；
Update module, the touch point coordinate letter for the identification of the touching box according to the current touch point location updating
Breath.
Above-mentioned touch point position detecting system does not generate variation in touching box identification touch point coordinate information, that is, touches
It is smaller to operate moving distance, when touching box is difficult to corresponding touch point change in location, relative coordinate identification technology can be passed through
It identifies the relative coordinate amount of movement that above-mentioned touch operation generates, it was identified that touch point coordinate information was added with touching box originally,
With the current touch point position of the determination touch operation, and then utilize the identification touching of above-mentioned current touch point location updating touching box
A coordinate information is touched, touch operation is can detecte and acts caused touch point change in location by a small margin, it is with higher
Position detection accuracy.
In one embodiment, the determining module is further used for:
The motion track of the touch operation on touch screen is obtained using preset photographic device under a touch screen；
Current location and the initial position of touch operation are obtained in the motion track；
The relative coordinate amount of movement that touch operation generates is determined according to the current location and initial position.
The present embodiment obtains the motion track of touch operation using photographic device, and then determines that corresponding relative coordinate is mobile
Amount makes the accuracy with higher of identified relative coordinate amount of movement.
Detailed description of the invention
Fig. 1 is the touch point method for detecting position flow chart of one embodiment；
Fig. 2 is the touch point relative coordinate amount of movement schematic diagram of one embodiment；
Fig. 3 is the touch point position detecting system structural schematic diagram of one embodiment.
Specific embodiment
The detection method of touch graphic width and the specific embodiment of system of the invention are made with reference to the accompanying drawing detailed
Thin description.
It show the detection method flow chart of the touch graphic width of one embodiment with reference to Fig. 1, Fig. 1, including walks as follows
It is rapid:
S10, in touch operation, the touch point coordinate information of monitoring touching box identification；
Touching box on touch apparatus may include the positions such as infrared inductor sensing apparatus, know above-mentioned touching box
The corresponding touch point coordinate information of other touch operation.The touch point coordinate information of above-mentioned touching box identification is that touch operation is corresponding
Coordinate information of the touch point relative to coordinate system reference point (such as coordinate origin) where touch apparatus, above-mentioned coordinate information packet
Include corresponding coordinate value.
S20 identifies the touching by relative coordinate identification technology when the touch point coordinate information does not generate variation
The relative coordinate amount of movement that operation generates is touched, the relative coordinate amount of movement is added with touch point coordinate information and determines the touching
Touch the current touch point position of operation；
In above-mentioned steps, the smaller or moving distance of touch operation movement of user's input is smaller, such as its moving distance
When less than some setting value, touching box is difficult to corresponding touch point change in location, that is, the touch point of touching box identification
Coordinate information does not generate variation, if continuing with touching box carries out the corresponding touch point coordinate information identification of touch operation, just
It may cause touch point change in location and be difficult to or identify situations such as inaccurate.At this point it is possible to identify skill by relative coordinate
Art identifies the relative coordinate amount of movement that the touch operation generates, it is added with the touch point coordinate information of touching box identification,
With the current touch point position of the determination touch operation, the precision of touch point position identification is improved.Above-mentioned touch point position is
Touch operation corresponding position on touch apparatus.
Above-mentioned relative coordinate amount of movement may include the touch point coordinate value of current touch point coordinate value and touching box identification
Difference；Above-mentioned current touch point coordinate information is coordinate letter of the corresponding touch point relative to coordinate system reference point where touch apparatus
Breath；The touch point coordinate information of itself and touching box identification can correspond respectively to the current location information of the same touch operation with
Initial position message.
Above-mentioned relative coordinate amount of movement can continuously clap corresponding touch point by photographic devices such as high-speed cameras
According to analyzing acquired in the photo of corresponding touch point position；It can also be by using with higher sensitivity position sensor to touch
Point variation carries out corresponding lasting induction, determines that touch operation generates opposite according to the change in location that position sensor is sensed
Coordinate amount of movement.
In one embodiment, as shown in Fig. 2, the touch point coordinate information of above-mentioned touching box identification may include touching behaviour
The initial touch point coordinate A (x of workA, yA), the relative coordinate that above-mentioned touch operation generates is identified by relative coordinate identification technology
Amount of movement can be (Δ x, Δ y), then by above-mentioned initial touch point coordinate A (xA, yA) and relative coordinate amount of movement (Δ x, Δ y)
It is added, the current touch point position B (x of available touch operationA+ Δ x, yA+Δy)。
S30, the touch point coordinate information identified according to touching box described in the current touch point location updating.
After above-mentioned touch point coordinate information is updated, it may indicate that the corresponding lesser movement of touch operation moving distance is dynamic
Make, the precision of corresponding touch point position detection can be improved.
Touch point method for detecting position provided in this embodiment does not generate change in touching box identification touch point coordinate information
Change, i.e. touch operation moving distance is smaller, when touching box is difficult to corresponding touch point change in location, can pass through relative coordinate
Identification technology identifies the relative coordinate amount of movement that above-mentioned touch operation generates, it was identified that touch point coordinate was believed with touching box originally
Manner of breathing adds, and with the current touch point position of the determination touch operation, and then is touched using above-mentioned current touch point location updating
Frame identifies touch point coordinate information, can detecte touch operation and acts caused touch point change in location, tool by a small margin
There is higher position detection accuracy.
In one embodiment, above-mentioned to identify that the opposite of touch operation generation is sat by relative coordinate identification technology
During marking amount of movement, changes when touching box identification touch point coordinate information generates, execution can be stopped and pass through relative coordinate
Identification technology identifies the step of relative coordinate amount of movement that the touch operation generates, and the touching box is identified touch point coordinate
Information is determined as the current touch point position of the touch operation.
In the present embodiment, when the increase of touch operation mobile range, so that touching box is accurately identified corresponding touch point and sit
When marking information, continues with touching box and carry out the identification of touch point position, it is ensured that its recognition efficiency.
In one embodiment, when the touch point coordinate information does not generate variation, the touching box stops identification
Touch point coordinate information, and execute the relative coordinate amount of movement that the touch operation generation is identified by relative coordinate identification technology
The step of.
The present embodiment is smaller in touch operation moving distance, when touching box is difficult to corresponding touch point change in location, control
Touching box processed stops identification touch point coordinate information, is detected by way of obtaining the relative coordinate amount of movement that touch operation generates
The phase in the touching box course of work can be reduced on the basis of improving touch point position detection accuracy by touching dot position information
Loss is closed, is conducive to improve its service life, can also realize the saving of correlation energy.
As one embodiment, the relative coordinate for identifying that the touch operation is generated by relative coordinate identification technology
Can also include: after the step of amount of movement
The moving distance that touch operation is determined according to the relative coordinate amount of movement, detect the moving distance whether be more than
Preset distance threshold；
Identify that the relative coordinate that the touch operation generates is mobile by relative coordinate identification technology if so, stopping executing
The step of amount, and utilize the touch point coordinate information of touching box identification touch operation.
Above-mentioned distance threshold can be set to the distance value that the touching box such as 6mm are difficult to, can also be according to touching box institute
Including the specific performance of location sensitive equipment be configured.
The present embodiment is sufficiently large in the moving distance of touch operation, and touching box can accurately identify corresponding touch point coordinate
When information, continues with touching box and carry out the identification of touch point position, recognition speed and efficiency can be improved.
In one embodiment, the relative coordinate of the touch operation generation is identified above by relative coordinate identification technology
The step of amount of movement may include:
The motion track of the touch operation on touch screen is obtained using preset photographic device under a touch screen；
Current location and the initial position of touch operation are obtained in the motion track；
The relative coordinate amount of movement that touch operation generates is determined according to the current location and initial position.
Above-mentioned photographic device may include that high-definition camera etc. can understand the filming apparatus for shooting touch point moving condition.
A certain filming frequency, such as 50Hz (hertz) can be set, it is corresponding to touch operation with above-mentioned filming frequency to control photographic device
Touch point take pictures, state the motion track of touch operation to obtain.Above-mentioned touch point is touch operation on touch apparatus
It is corresponding, it can be obtained, can also be preset acquired in photographic device under a touch screen by corresponding touching box.
Current location in above-mentioned motion track can correspond to the current touch point position of touch operation, in motion track
Initial position can correspond to by relative coordinate identification technology identify touch operation generate relative coordinate amount of movement it
Before, the touch point coordinate information of touching box identification is subtracted the coordinate of initial position using the coordinate of current location, can obtained
The relative coordinate amount of movement that touch operation generates.
The present embodiment obtains the motion track of touch operation using photographic device, and then determines that corresponding relative coordinate is mobile
Amount makes the accuracy with higher of identified relative coordinate amount of movement.
It is above-mentioned to obtain the touch behaviour on touch screen using preset photographic device under a touch screen as one embodiment
The process of the motion track of work may include:
It is taken pictures with setpoint frequency control photographic device to the corresponding touch point of touch operation, obtains multiple touch points
Set photo；
The motion track of the touch operation is determined according to each touch point position photo and photo opporunity.
Above-mentioned setpoint frequency may include the frequency values such as 50Hz, can also be other values according to correlation shooting precision setting.
It is above-mentioned to obtain the touch behaviour on touch screen using preset photographic device under a touch screen as one embodiment
Can also include: after the step of motion track of work
After detecting that the touch point quiescent time on the motion track is more than preset time threshold, in the movement
The resting position of the touch point is searched in track；
Determine that touch operation is produced by resting position according to the initial position in the resting position and the motion track
Raw relative coordinate amount of movement.
Above-mentioned time threshold can be set to 1 second, 0.8 second equivalence, can also be arranged according to the correlation function of touch apparatus
For other values.
The present embodiment obtains the corresponding relative coordinate amount of movement of touch point resting position on motion track, i.e. relative coordinate
In amount of movement identification process, it is static to can be used for above-mentioned touch point for the corresponding relative coordinate amount of movement in the stop place of touch operation
The touching position information of position detects, and the touch stop dot position information during touch operation is enable sufficiently to be detected, into
The perfect touch dot position information detection function of one step.
In one embodiment, above-mentioned in touch operation, monitoring touching box identification touch point coordinate information the step of
Before can also include:
The coordinate system of touch apparatus is established according to the dimension information of touch apparatus；
The reference point of the touch apparatus is selected in the coordinate system.
The present embodiment can establish corresponding coordinate system according to the length and width and resolution ratio equidimension information of touch apparatus, and
Reference point selection is carried out, can simplify the expression-form of coordinate value in the coordinate information of touch point.The reference point of above-mentioned touch apparatus
One of right angle can be selected if the angle between the adjacent both sides of touch apparatus includes right angle for the origin of coordinate system
Reference point as touch apparatus.
The touch point position detecting system result schematic diagram of one embodiment is shown with reference to Fig. 3, Fig. 3, comprising:
Monitoring modular 10, for the touch point coordinate information that in touch operation, monitoring touching box is identified；
Determining module 20, for identifying skill by relative coordinate when the touch point coordinate information does not generate variation
Art identifies the relative coordinate amount of movement that the touch operation generates, by the relative coordinate amount of movement and touch point coordinate information phase
Add the current touch point position for determining the touch operation；
Update module 30, the touch point coordinate letter for the identification of the touching box according to the current touch point location updating
Breath.
In one embodiment, above-mentioned determining module can be further used for:
The motion track of the touch operation on touch screen is obtained using preset photographic device under a touch screen；
Current location and the initial position of touch operation are obtained in the motion track；
The relative coordinate amount of movement that touch operation generates is determined according to the current location and initial position.
Touch point position detecting system provided by the invention and touch point method for detecting position provided by the invention one are a pair of
It answers, is suitable for touching point in the technical characteristic and its advantages of the embodiment elaboration of the touch point method for detecting position
It sets in the embodiment of detection system, hereby give notice that.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of touch point method for detecting position, which comprises the steps of:
In touch operation, the touch point coordinate information of monitoring touching box identification；
When the touch point coordinate information does not generate variation, identify that the touch operation produces by relative coordinate identification technology
The relative coordinate amount of movement is added with touch point coordinate information and determines the touch operation by raw relative coordinate amount of movement
Current touch point position；The relative coordinate amount of movement continuously takes pictures to corresponding touch point by photographic device, analyzes phase
Acquired in the touch point position photo answered, or touch point is changed by position sensor and carries out continuing induction, according to position
The change in location that sensor is sensed determines；
The touch point coordinate information identified according to touching box described in the current touch point location updating.
2. touch point method for detecting position according to claim 1, which is characterized in that passing through relative coordinate identification technology
During identifying the relative coordinate amount of movement that the touch operation generates, when touching box identification touch point coordinate information generates change
Change, stops executing the step of identifying the relative coordinate amount of movement that the touch operation generates by relative coordinate identification technology, it will
The touching box identification touch point coordinate information is determined as the current touch point position of the touch operation.
3. touch point method for detecting position according to claim 1, which is characterized in that when the touch point coordinate information does not have
When having generation variation, the touching box stops identification touch point coordinate information, and executes and identified by relative coordinate identification technology
The step of relative coordinate amount of movement that the touch operation generates.
4. touch point method for detecting position according to claim 3, which is characterized in that described to identify skill by relative coordinate
After art identifies the step of relative coordinate amount of movement that the touch operation generates further include:
The moving distance that touch operation is determined according to the relative coordinate amount of movement detects whether the moving distance is more than default
Distance threshold；
If so, stopping executing the relative coordinate amount of movement for identifying touch operation generation by relative coordinate identification technology
Step, and utilize the touch point coordinate information of touching box identification touch operation.
5. touch point method for detecting position according to claim 1, which is characterized in that described to identify skill by relative coordinate
Art identifies that the step of relative coordinate amount of movement that the touch operation generates includes:
The motion track of the touch operation on touch screen is obtained using preset photographic device under a touch screen；
Current location and the initial position of touch operation are obtained in the motion track；
The relative coordinate amount of movement that touch operation generates is determined according to the current location and initial position.
6. touch point method for detecting position according to claim 5, which is characterized in that the utilization is preset under a touch screen
Photographic device obtain the process of motion track of the touch operation on touch screen and include:
It is taken pictures with setpoint frequency control photographic device to the corresponding touch point of touch operation, obtains multiple touch point positions and shine
Piece；
The motion track of the touch operation is determined according to each touch point position photo and photo opporunity.
7. touch point method for detecting position according to claim 5, which is characterized in that the utilization is preset under a touch screen
Photographic device obtain touch screen on the touch operation motion track the step of after further include:
After detecting that the touch point quiescent time on the motion track is more than preset time threshold, in the motion track
The middle resting position for searching the touch point；
Determine what touch operation was generated by resting position according to the initial position in the resting position and the motion track
Relative coordinate amount of movement.
8. touch point method for detecting position according to claim 1, which is characterized in that described in touch operation, monitoring
Before the step of touch point coordinate information of touching box identification further include:
The coordinate system of touch apparatus is established according to the dimension information of touch apparatus；
The reference point of the touch apparatus is selected in the coordinate system.
9. a kind of touch point position detecting system characterized by comprising
Monitoring modular, for the touch point coordinate information that in touch operation, monitoring touching box is identified；
Determining module, for being identified by relative coordinate identification technology when the touch point coordinate information does not generate variation
The relative coordinate amount of movement that the touch operation generates, is added determination with touch point coordinate information for the relative coordinate amount of movement
The current touch point position of the touch operation；The relative coordinate amount of movement connects corresponding touch point by photographic device
It is continuous to take pictures, it analyzes acquired in the photo of corresponding touch point position, or touch point variation is continued by position sensor
Induction is determined according to the change in location that position sensor is sensed；
Update module, the touch point coordinate information for the identification of the touching box according to the current touch point location updating.
10. touch point position detecting system according to claim 9, which is characterized in that the determining module is further used
In:
The motion track of the touch operation on touch screen is obtained using preset photographic device under a touch screen；
Current location and the initial position of touch operation are obtained in the motion track；
The relative coordinate amount of movement that touch operation generates is determined according to the current location and initial position.
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| CN106547402A (en) * | 2016-10-31 | 2017-03-29 | 广州华欣电子科技有限公司 | A kind of touch control method, touch frame and smart pen |
| CN106896943A (en) * | 2017-02-04 | 2017-06-27 | 广州华欣电子科技有限公司 | Method, device and smart pen that smart pen is write on the touchscreen |
| CN108833753B (en) * | 2018-06-29 | 2020-08-21 | 维沃移动通信有限公司 | Image acquisition and application method, terminal and computer readable storage medium |
| CN112540696A (en) * | 2019-09-23 | 2021-03-23 | 中兴通讯股份有限公司 | Screen touch control management method, intelligent terminal, device and readable storage medium |
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| CN103365480A (en) * | 2012-03-27 | 2013-10-23 | 北京汇冠新技术股份有限公司 | Touch recognition method and system for multi-point infrared touch screen |
| CN103793113A (en) * | 2014-03-10 | 2014-05-14 | 航天海鹰光电信息技术（天津）有限公司 | Imaging locating method of optical touch module and optical touch control equipment |
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| CN103365480A (en) * | 2012-03-27 | 2013-10-23 | 北京汇冠新技术股份有限公司 | Touch recognition method and system for multi-point infrared touch screen |
| CN103793113A (en) * | 2014-03-10 | 2014-05-14 | 航天海鹰光电信息技术（天津）有限公司 | Imaging locating method of optical touch module and optical touch control equipment |
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