CN106095169B - A kind of three-dimensional position recognition methods of matrix form pressure touch equipment - Google Patents
A kind of three-dimensional position recognition methods of matrix form pressure touch equipment Download PDFInfo
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- CN106095169B CN106095169B CN201610389117.2A CN201610389117A CN106095169B CN 106095169 B CN106095169 B CN 106095169B CN 201610389117 A CN201610389117 A CN 201610389117A CN 106095169 B CN106095169 B CN 106095169B
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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
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
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- Position Input By Displaying (AREA)
Abstract
The invention discloses a kind of three-dimensional position recognition methods of matrix form pressure touch equipment, and the method comprising the steps of: 101, demarcating, and stored to all coordinate points of touch screen or Trackpad in advance；102, all the sensors corresponding pressure value is measured；103, pressure is judged whether there is to press；104, the XYZ coordinate that touch screen or Trackpad are pressed is determined；105, command adapted thereto is responded according to three-dimensional coordinate (x, y, z).The present invention be used only pressure touch technology can inexpensive low-resource realize touch screen three-dimensional position identification.
Description
Technical field
The invention belongs to the technical fields of pressure touch, the in particular to three-dimensional recognition method of pressure touch.
Background technique
With the high speed development of intelligent electronic device, pressure touch technology appears in mobile phone, smartwatch and notes application,
And have the tendency that widely available.Pressure touch technology has mainly given touch screen two-dimensional x/y plane space to increase the space third dimension z, from
And abundant human-computer interaction means.The touch screen x/y plane space of mobile device mainly uses capacitive touch screen to realize at present, and
Pressure touch increases third dimension space, and 3 dimension controls of screen are mainly realized by capacitance touch technology+pressure touch technology
System.
Such as patent application 201520458679.9 discloses a kind of mobile phone pressure touch device, comprising: mobile phone body；If
At least one pressure touch component on mobile phone body surface is set, generates mould for sensing external pressure, and according to external pressure
Quasi- electric signal；Signal processing circuit is connected with the output end of at least one pressure touch component, for touching at least one pressure
The analog electrical signal of control component output is handled, and digital electric signal is obtained；Microprocessor, the output end with signal processing circuit
It is connected, for obtaining at least one pressure signal of reflection external pressure size according to digital electric signal, and according at least one
Pressure signal triggers mobile phone body and executes corresponding function.This application passes through what the pressure conversion that will be sensed was intended at reflection user
Pressure signal, and corresponding function is executed using pressure signal triggering mobile phone body.
Obviously, in the above-mentioned methods, the main increase using hardware configuration controls to realize that the three-dimensional of screen identifies, realizes
At high cost, more using resource, power consumption is big, is not able to satisfy touch-control convenience, the energy saving, the need for reducing cost of existing touch control device
It wants.
Summary of the invention
To solve the above problems, the purpose of the present invention is to provide a kind of knowledges of the three-dimensional position of matrix form pressure touch equipment
Other method, this method be used only pressure touch technology can inexpensive low-resource realize touch screen three-dimensional position identification.
It is another object of the present invention to provide a kind of three-dimensional position recognition methods of matrix form pressure touch equipment, should
Method can accomplish to accurately identify and control on the basis of being realized with a low cost, and be conducive to the extensive use of three-dimensional identification control.
To achieve the above object, technical scheme is as follows.
A kind of three-dimensional position recognition methods of matrix form pressure touch equipment, it is characterised in that this method includes following step
It is rapid:
101, all coordinate points of touch screen or Trackpad are demarcated in advance, and is stored；
Scaling method is: using calibration facility to all coordinate points determined by the touch screen or Trackpad on touch control device
Apply same pressure one by one, controller controls pressure detecting module and detects each sensor pressure values, and records all the sensors pair
The pressure value and number answered are numbered 1,2,3 to all the sensors by certain rule ..., M+N, their corresponding pressure
Value be P01, P02, P03 ..., P0M+N,
The pressure value of all the sensors and be P0total=P01+P02+P03+ ...+P0M+N；
The corresponding relative pressure of each sensor is P0i1=P01/P0total；P0i1=P02/P0total；…；
P0i (M+N)=P0M+N/P0total；
The corresponding relative pressure of coordinate PXY all the sensors is { P0i1, P0i2, P0i3 ..., P0i (M+N) }, corresponding
Sensor number be 1,2,3 ..., M+N.
In order to facilitate the complexity for simplifying subsequent coordinates identification, after calibration, the relative pressures of all the sensors from big
To small sequence, the relative pressure value list after sequence is { P0j1, P0j2, P0j3 ..., P0j (M+N) }, and corresponding sensor is compiled
Number be j1, j2, j3 ..., j (M+N).
Relative pressure and sensor number after being sorted write power down nonvolatile memory by controller, with
Offer uses in practical applications with touch control device.In order to save hardware resource cost and simplify operation, do not save generally all
The relative pressure and number of sensor can only save several (>=3) the sensor relative pressures in front and number.
In addition, also needing to determine Z-direction minimum scale division (LSB) corresponding pressure value, i.e. application touch screen/Trackpad can be known
The minimum pressure values being clipped to, minimum scale division (LSB) corresponding pressure value are the sum of the pressure value of all the sensors at this time, i.e.,
Plsb=P1+P2+P3+ ...+PM+N.
102, all the sensors corresponding pressure value is measured；
When touch control device works normally, controller passes through pressure detecting module in real time and measures to sensor, obtains
The pressure value of each sensor.
103, pressure is judged whether there is to press；
According to all the sensors pressure value measured, the pressure value of all the sensors is added up, if it is greater than etc.
In the minimum resolution of pressure value, then it represents that there is pressure to press, if it is less than the minimum resolution of pressure value, then continue to pressure
Sensor measures.
104, the XYZ coordinate that touch screen or Trackpad are pressed is determined.
Then the xyz three-dimensional position in the place that confirmation is pressed is carried out.
When having detected that pressure is pressed, the pressure value of all the sensors is obtained and for Ptotal=P1+P2+P3+ ...+PM
+ N, that Z coordinate are Z=Ptotal/Plsb, and Plsb is pressure minimum scale division (i.e. LSB) corresponding pressure value that can be recognized.
It searches and matches, find out the XY coordinate that touch screen or Trackpad are pressed.
When having detected that pressure is pressed, all the sensors are numbered 1,2,3 ..., M+N, their corresponding pressure
Value be P1, P2, P3 ..., PM+N,
The pressure value of all the sensors and be Ptotal=P1+P2+P3+ ...+PM+N；
The corresponding relative pressure of each sensor is Pi1=P1/Ptotal；Pi1=P2/Ptotal；…；Pi(M+N)
=PM+N/Ptotal；
The corresponding relative pressure of coordinate PXY all the sensors is { Pi1, Pi2, Pi3 ..., Pi (M+N) }, corresponding biography
Sensor number is 1,2,3 ..., M+N.
The relative pressure of all the sensors is sorted from large to small, the relative pressure value list after sequence be Pk1,
Pk2, Pk3 ..., Pk (M+N) }, corresponding sensor number is k1, k2, k3 ..., k (M+N).
First find out the identical coordinate points of all the sensors number order, i.e., by the number k1, k2, k3 ... of sensor, k (M+
N the number j1, j2, j3 ... of each coordinate point sensor) and in memory, j (M+N) compare one by one, find out identical
Numbered sequence coordinate points, then with the corresponding relative pressure of sensor and it is corresponding with all coordinate points found before
Each relative pressure of memory compares, △ P=(Pk1-P0j1) 2+ (Pk2-P0j2) 2+ (Pk3-P0j3) 2+ ...+(Pk
(M+N)-P0j (M+N)) 2, the coordinate that △ P is minimum value is found out, this coordinate points is exactly the XY coordinate points that pressure is pressed.
105, command adapted thereto is responded according to three-dimensional coordinate (x, y, z).
It determines three-dimensional coordinate (x, y, z) and responds command adapted thereto afterwards.Detection pressure is then continued to, next instruction is responded.
The three-dimensional position recognition methods for the matrix form pressure touch equipment that the present invention is realized, by being previously stored and in real time
The XYZ three-dimensional coordinate of touch point is measured, and makes the accurate judgement of touch point according to the comparison of coordinate, thus not increasing hardware
On the basis of be achieved at low cost the execution of touch command.
The present invention can accomplish to accurately identify and control on the basis of being realized with a low cost, and be conducive to three-dimensional identification control
The extensive use of system.
Detailed description of the invention
Fig. 1 is the hardware structural diagram that the present invention is implemented.
Fig. 2 is the control flow chart that the present invention is implemented.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Shown in as shown in Figure 1 and Figure 2, the method that the present invention is realized is implemented as follows:
201, sensor arrangement array is determined in advance, determines all coordinate points that X/Y plane can identify.
First determining matrix form pressure touch sensor arrangement array, in Fig. 1,11 be the touch screen or Trackpad of equipment,
Touch screen or Trackpad are arranged using pressure sensor matrix form M*N distribution, wherein 24 position where pressure sensor,
The distance between X-direction pressure sensor center is Q, and the distance between Y-direction pressure sensor center is P.According to actually answering
With scene, the accuracy of identification of touch screen X/Y plane coordinate is determined, arrange (P=to m is averagely divided X-direction pressure sensor again
Ng), between averagely n row (Q=mh) is divided again Y-direction pressure sensor, that is, determine that X/Y plane can identify ((M-1) * m+M) *
((N-1) * n+N) a coordinate position.If using lower left corner center sensor value as origin (0,0), then all pressure touchs are known
The coordinate being clipped to all has defined.
202, all coordinate points of X/Y plane are demarcated in advance.
Before the factory of pressure touch electronic equipment, all coordinate calibration are carried out to touch control device.I.e. using calibration facility to touching
All coordinate points determined by touch screen or Trackpad in control equipment apply same pressure one by one, and controller controls pressure detecting
Module detects each sensor pressure values, and records all the sensors corresponding pressure value and number.By certain rule to all
Sensor is numbered 1,2,3 ..., M+N, their corresponding pressure values are P01, P02, P03 ..., P0M+N.
The pressure value of all the sensors and be P0total=P01+P02+P03+ ...+P0M+N.
The corresponding relative pressure of each sensor is P0i1=P01/P0total；P0i2=P02/P0total；…；
P0i (M+N)=P0M+N/P0total.
The corresponding relative pressure of coordinate PXY all the sensors is { P0i1, P0i2, P0i3 ..., P0i (M+N) }, corresponding
Sensor number be 1,2,3 ..., M+N.
In order to facilitate the complexity for simplifying subsequent coordinates identification, the relative pressure of all the sensors is arranged from big to small
Sequence, the relative pressure value list after sequence are { P0j1, P0j2, P0j3 ..., P0j (M+N) }, and corresponding sensor number is j1,
j2,j3,…,j(M+N)。
Relative pressure and sensor number after being sorted write power down nonvolatile memory by controller, with
Offer uses in practical applications with touch control device.In order to save hardware resource cost and simplify operation, do not save generally all
The relative pressure and number of sensor can only save several (>=3) the sensor relative pressures in front and number.
In addition, also needing to determine Z-direction minimum scale division (LSB) corresponding pressure value, i.e. application touch screen/Trackpad can be known
The minimum pressure values being clipped to, minimum scale division (LSB) corresponding pressure value are the sum of the pressure value of all the sensors at this time, i.e.,
Plsb=P1+P2+P3+ ...+PM+N.
203, in actual use, all the sensors corresponding pressure value is measured.
When touch control device works normally, controller passes through pressure detecting module in real time and measures to sensor, obtains
The pressure value of each sensor.
204, pressure is judged whether there is to press.
According to all the sensors pressure value measured, the pressure value of all the sensors is added up, if it is greater than etc.
In the minimum resolution of pressure value, then it represents that there is pressure to press, if it is less than the minimum resolution of pressure value, then continue to pressure
Sensor measures.
205, the Z coordinate that touch screen or Trackpad are pressed is determined.
When having detected that pressure is pressed, the pressure value of all the sensors is obtained and for Ptotal=P1+P2+P3+ ...+PM
+ N, that Z coordinate are Z=Ptotal/Plsb, and Plsb is pressure minimum scale division (i.e. LSB) corresponding pressure value that can be recognized.
206, it searches and matches, find out the XY coordinate that touch screen or Trackpad are pressed.
When having detected that pressure is pressed, all the sensors are numbered 1,2,3 ..., M+N, their corresponding pressure
Value be P1, P2, P3 ..., PM+N.
The pressure value of all the sensors and be Ptotal=P1+P2+P3+ ...+PM+N.
The corresponding relative pressure of each sensor is Pi1=P1/Ptotal；Pi2=P2/Ptotal；…；Pi(M+N)
=PM+N/Ptotal.
The corresponding relative pressure of coordinate PXY all the sensors is { Pi1, Pi2, Pi3 ..., Pi (M+N) }, corresponding biography
Sensor number is 1,2,3 ..., M+N.
The relative pressure of all the sensors is sorted from large to small, the relative pressure value list after sequence be Pk1,
Pk2, Pk3 ..., Pk (M+N) }, corresponding sensor number is k1, k2, k3 ..., k (M+N).
Institute is first found out compared with the sensor number for each coordinate being stored in memory sequence with sensor number sequence
There are an identical coordinate points of sensor number sequence, i.e., by the number k1, k2, k3 ... of sensor, k (M+N) and in memory
The number j1, j2, j3 ... of each coordinate point sensor, j (M+N) compare one by one, find out the coordinate of identical numbered sequence
Point, then with the corresponding relative pressure of sensor and corresponding with all coordinate points found before in each opposite of memory
Pressure value compares, △ P=(Pk1-P0j1) 2+ (Pk2-P0j2) 2+ (Pk3-P0j3) 2+ ...+(Pk (M+N)-P0j (M+N)) 2,
The coordinate that △ P is minimum value is found out, this coordinate points is exactly the XY coordinate points that pressure is pressed.
207, command adapted thereto is responded according to three-dimensional coordinate (x, y, z).
It determines three-dimensional coordinate (x, y, z) and responds command adapted thereto afterwards.Detection pressure is then continued to, next instruction is responded.
Pressure touch technology is used only in the method that the present invention is realized, so that it may which inexpensive low-resource realizes touch screen
The identification of three-dimensional position, to promote the competitiveness of product.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (3)
1. a kind of three-dimensional position recognition methods of matrix form pressure touch equipment, it is characterised in that this method comprises the following steps:
101, all coordinate points of touch screen or Trackpad are demarcated in advance, and is stored；
102, all the sensors corresponding pressure value is measured；
Sensor is measured in real time, obtains the pressure value of each sensor；
103, pressure is judged whether there is to press；
According to all the sensors pressure value measured, the pressure value of all the sensors is added up, if it is larger than or equal to pressure
The minimum resolution of force value, then it represents that there is pressure to press, if it is less than the minimum resolution of pressure value, then continue to pressure sensing
Device measures；
104, it determines the XYZ coordinate that touch screen or Trackpad are pressed, when having detected that pressure is pressed, obtains all the sensors
Pressure value and be Ptotal=P1+P2+P3+ ...+PM+N, that Z coordinate is Z=Ptotal/Plsb, and Plsb can recognize
Pressure minimum scale division corresponding pressure value；
Further comprise having search and matching, finds out the XY coordinate that touch screen or Trackpad are pressed；
When having detected that pressure is pressed, all the sensors are numbered 1,2,3 ..., M+N, their corresponding pressure values are
P1, P2, P3 ..., PM+N,
The pressure value of all the sensors and be Ptotal=P1+P2+P3+ ...+PM+N；
The corresponding relative pressure of each sensor is Pi1=P1/Ptotal；Pi2=P2/Ptotal；…；Pi (M+N)=PM+
N/Ptotal；
The corresponding relative pressure of all the sensors is { Pi1, Pi2, Pi3 ..., Pi (M+N) }, and corresponding sensor number is 1,
2,3,…,M+N；
The relative pressure of all the sensors is sorted from large to small, the relative pressure value list after sequence be Pk1, Pk2,
Pk3 ..., Pk (M+N) }, corresponding sensor number is k1, k2, k3 ..., k (M+N)；
Then by number k1, k2, the k3 of sensor ..., the number of k (M+N) and each coordinate point sensor in memory
J1, j2, j3 ..., j (M+N) compare one by one, find out the coordinate points of identical numbered sequence, then corresponding with sensor
Relative pressure and each relative pressure in memory corresponding with all coordinate points found before compare, △ P=
(Pk1-P0j1)2+(Pk2-P0j2)2+(Pk3-P0j3)2+…+(Pk(M+N)-P0j(M+N))2, find out the seat that △ P is minimum value
Mark, this coordinate points is exactly the XY coordinate points that pressure is pressed；
105, command adapted thereto is responded according to three-dimensional coordinate (x, y, z)；
It determines three-dimensional coordinate (x, y, z) and responds command adapted thereto afterwards.
2. the three-dimensional position recognition methods of matrix form pressure touch equipment as described in claim 1, it is characterised in that the step
In rapid 101, scaling method is: using calibration facility to all coordinate points determined by the touch screen or Trackpad on touch control device
Apply same pressure one by one, controller controls pressure detecting module and detects each sensor pressure values, and records all the sensors pair
The pressure value and number answered are numbered 1,2,3 to all the sensors by certain rule ..., M+N, their corresponding pressure
Value be P01, P02, P03 ..., P0M+N,
The pressure value of all the sensors and be P0total=P01+P02+P03+ ...+P0M+N；
The corresponding relative pressure of each sensor is P0i1=P01/P0total；P0i2=P02/P0total；…；P0i(M+
N)=P0M+N/P0total；
The corresponding relative pressure of coordinate PXY all the sensors is { P0i1, P0i2, P0i3 ..., P0i (M+N) }, corresponding biography
Sensor number is 1,2,3 ..., M+N.
3. the three-dimensional position recognition methods of matrix form pressure touch equipment as claimed in claim 2, it is characterised in that after calibration,
The relative pressure of all the sensors is sorted from large to small, the relative pressure value list after sequence be P0j1, P0j2,
P0j3 ..., P0j (M+N) }, corresponding sensor number is j1, j2, j3 ..., j (M+N).
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| CN109375867A (en) * | 2019-01-16 | 2019-02-22 | 南昌黑鲨科技有限公司 | A kind of touch operation method and device |
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| CN103823592A (en) * | 2014-02-26 | 2014-05-28 | 汕头超声显示器（二厂）有限公司 | Display device with mechanical sensing function |
| CN104407731A (en) * | 2014-10-28 | 2015-03-11 | 天津三星电子有限公司 | Touch display equipment and pressure induction touch method thereof |
| CN104704457A (en) * | 2012-10-11 | 2015-06-10 | 阿尔卑斯电气株式会社 | Input device and multiple point load detection method employing input device |
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| KR100943989B1 (en) * | 2008-04-02 | 2010-02-26 | (주)엠아이디티 | Capacitive Touch Screen |
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|---|---|---|---|---|
| CN104704457A (en) * | 2012-10-11 | 2015-06-10 | 阿尔卑斯电气株式会社 | Input device and multiple point load detection method employing input device |
| CN103823592A (en) * | 2014-02-26 | 2014-05-28 | 汕头超声显示器（二厂）有限公司 | Display device with mechanical sensing function |
| CN104407731A (en) * | 2014-10-28 | 2015-03-11 | 天津三星电子有限公司 | Touch display equipment and pressure induction touch method thereof |
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