CN103105958B - Touch control detection device and method - Google Patents
Touch control detection device and method Download PDFInfo
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- CN103105958B CN103105958B CN201110359473.7A CN201110359473A CN103105958B CN 103105958 B CN103105958 B CN 103105958B CN 201110359473 A CN201110359473 A CN 201110359473A CN 103105958 B CN103105958 B CN 103105958B
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Abstract
The invention provides a kind of touch control detection device and method, for detecting the position of touch on touch screen, described touch control detection device comprises: multiple sensing unit, and being installed on described touch screen with array way and forming multiple acquisition channel, the sensing unit in each acquisition channel is non-conterminous mutually; Collecting unit, when the touch control operation on described touch screen being detected, gathers the induced signal in response to described touch control operation from each acquisition channel respectively; Controlled processing unit, receives described induced signal, is mated by the locator field that described induced signal and the sensing unit of arranging with array way respectively on described touch screen are formed, and determines described position of touch according to matching result.The present invention can realize adopting with the more induced signal of less channel acquisition, thus quick position is to touch area, and higher compared with other touch screen real-time, cost is lower.
Description
Technical field
The present invention relates to touch control detection device and method, particularly a kind of touch screen touch control detection device based on sensor array arrangement formula and method.
Background technology
Along with the fast development of electronic message unit, people have higher requirement to man-machine interaction mode, and the limitation that traditional keyboard adds mouse mode comes out gradually.Emerging all kinds of touch screen mode of operation, obtains the favor of more people.
Present stage, the primary solutions of touch screen is: install resistance-type, capacitance type sensor on a display screen additional or rows of sensors be listed on touch screen to detect input signal, operator's finger or input pen directly carry out clicking, writing operations such as drawing, to reach the object of man-machine interaction on a display screen.But due in order to reach higher touch accuracy, the sensor that use increases gradually, this just brings certain pressure in testing circuit sampling.
Large-scale array type rows of sensors mode for cloth needs the sweep velocity of sweep circuit higher, to navigate to contact signal and position thereof more rapidly.Meanwhile, for a part of touch screen, the number of signal sampling channel is comparatively limited, can not meet the scan task of multiple signal channels.Therebetween contradiction greatly constrains the development of this class touch screen.
Summary of the invention
The object of this invention is to provide a kind of based on sensor array arrangement formula touch screen touch control detection device and method, make to adopt less acquisition channel, on rapid scanning touch screen, the large quantity sensor of array arrangement, improves scan efficiency, achieves the real-time of good touch control detection.
For achieving the above object, the present invention adopts following technical scheme:
The invention provides a kind of touch control detection device, for detecting the position of touch on touch screen, described touch control detection device comprises: multiple sensing unit, and being installed on described touch screen with array way and forming multiple acquisition channel, the sensing unit in each acquisition channel is non-conterminous mutually; Collecting unit, when the touch control operation on described touch screen being detected, gathers the induced signal in response to described touch control operation from each acquisition channel respectively; Controlled processing unit, receives described induced signal, is mated by the locator field that described induced signal and the sensing unit of arranging with array way respectively on described touch screen are formed, and determines described position of touch according to matching result.
The present invention also provides a kind of touch control detecting method, for detecting the position of touch on touch screen, described touch screen is provided with multiple sensing unit with array way and described sensing unit forms multiple acquisition channel, sensing unit in each acquisition channel is non-conterminous mutually, described touch control detecting method comprises: when the touch control operation on described touch screen being detected, gathers the induced signal in response to described touch control operation from each acquisition channel respectively; The locator field that described induced signal and the sensing unit of arranging with array way respectively on described touch screen are formed is mated; Described position of touch is determined according to matching result.
The present invention arranges by reasonably selecting sensor, obtain specific combination of channels, can realize adopting with the more induced signal of less channel acquisition, thus quick position is to touch area, higher compared with other sensor array arrangement formula touch screen real-time, cost is lower.
Accompanying drawing explanation
Fig. 1 is that the realization that the present invention is based on sensor array arrangement formula touch screen touch control detection device forms schematic diagram;
Fig. 2 is the structural representation of the embodiment that the present invention is based on sensor array arrangement formula touch screen touch control detection device;
Fig. 3 is the process flow diagram of the embodiment that the present invention is based on sensor array arrangement formula touch screen touch control detecting method.
Embodiment
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in detail.It will be appreciated by those skilled in the art that each ingredient shown in accompanying drawing and annexation thereof are schematic and nonrestrictive.
It is the formation schematic diagram of the touch screen touch control detection device that the present invention is based on sensor array arrangement formula see Fig. 1, Fig. 1.Touch control detection device comprises multiple sensing unit 101, touch screen 103, collecting unit 104 and controlled processing unit 105, wherein, multiple sensing unit 101 array arrangement is on touch screen 103, and several sensing units 101 form a locator field 102, in FIG, every four adjacent and with array way distribution sensing unit formed a locator field, certainly, the present invention, not as limit, also can adopt the sensing unit forming array of other quantity to form locator field.
Below with reference to Fig. 2 and Fig. 3, the arrangement mode of the sensing unit in touch control detection device of the present invention and touch control detecting method are described in detail.
Fig. 2 is the structural representation of an embodiment of the touch screen touch control detection device that the present invention is based on sensor array arrangement formula.In Fig. 2 the structure of touch control detection device and Fig. 1 substantially similar, it comprises multiple sensing unit (as: sensor unit 201), touch screen 203, collecting unit 204 and controlled processing unit 205.In the present embodiment, for convenience of description, the quantity of sensing unit is 36.Sensing unit to be arranged on touch screen 203 with array way and to form multiple acquisition channel 206, and the sensing unit in each acquisition channel 206 is non-conterminous mutually." adjacent " herein refers to that the distance between two sensing units is less than or equal to the distance in described locator field between distance two sensing units farthest.Several adjacent sensing units form a locator field 202, and the sensing unit in locator field 202 is also arrange in array n × n mode, wherein, and n >=2, and each sensing unit has different acquisition channels.When collecting unit 204 detects the touch control operation on touch screen 203, gather the induced signal in response to described touch control operation from each acquisition channel respectively.Controlled processing unit 205 receives the induced signal from collecting unit 204, is mated by induced signal with each locator field on touch screen 203, and according to the position of touch of matching result determination touch control operation.
In fig. 2, all the sensors unit forms 9 acquisition channels, and the sensor unit in these 9 acquisition channels, respectively with label " 1 " to " 9 " mark, identifies identical collecting unit and shares an acquisition channel 206.Its arrangement mode is: the sensor unit in each acquisition channel connects in the mode of series connection, and the acquisition channel 206 formed by wiring connects collecting unit 204, sensor unit in each acquisition channel does not concentrate in together, but is dispersed in the different locator fields of touch screen, that is, the acquisition channel residing for each sensor unit in same locator field is different, the combination of the sensor comprised respectively in every two locator fields is not identical yet, namely, the wherein included acquisition channel residing for all the sensors unit is incomplete same, and only part is identical or completely different, such as, the sensor combinations of the locator field in the upper left corner in Fig. 2 is " 1-2-4-5 ", the sensor combinations of the locator field on the right side of it is " 3-9-6-4 ", the two included acquisition channel part residing for sensor unit identical (all comprising the 4th acquisition channel), and for example, be shown in the sensor combinations of the locator field of Fig. 2 bottom center for " 9-7-8-6 ", completely different from the acquisition channel residing for sensor unit included by " 1-2-4-5 " of the sensor combinations of the locator field in the upper left corner.
As Fig. 2, label to be connected formation first acquisition channel for four sensor units 201 of " 1 ", the all the sensors units in series that label is " 2 " forms the second acquisition channel, by that analogy, the all the sensors units in series that label is " N " forms N acquisition channel, 0 < N≤9.The sensor unit that locator field 202 comprises is respectively from different acquisition channels, that is, the first acquisition channel, the second acquisition channel, the 4th acquisition channel and the 5th acquisition channel, other locator field is also like this.In addition, the combination of channels representated by four sensor units comprised in locator field 202 is unique, be combined as shown in Fig. 2 " 1-2-4-5 ", there is not combination identical with it in the sensor unit that remaining locator field comprises, combination " 7-8-2-3 ", " 1-5-6-7 " etc. as shown in all the other locator fields in Fig. 2 are all different from it; The combination of channels of each locator field can be stored in the inner or outside storage unit of touch control detection device.
Illustrate that the present invention detects the method for position of touch below with reference to Fig. 3, Fig. 3 is the process flow diagram of the embodiment that the present invention is based on sensor array arrangement formula touch screen touch control detecting method.
Touch control detecting method of the present invention is for detecting the position of touch on touch screen, and as shown in Figure 2, touch screen is provided with multiple sensing unit and described sensing unit forms multiple acquisition channel, the sensing unit in each acquisition channel is non-conterminous mutually.As shown in Figure 3, touch control detecting method of the present invention comprises: when the touch control operation on touch screen being detected, gathers the induced signal in response to described touch control operation from each acquisition channel respectively; Induced signal is mated with the locator field be made up of adjacent sensing unit respectively on touch screen; According to matching result determination position of touch, specifically details are as follows.
As step S301, when the touch control operations such as the click that operator's finger or input pen directly carry out on a display screen being detected, collecting unit gathers the signal in all acquisition channels.As Fig. 2, collecting unit 204 gathers the induced signal of each sensor unit in 9 acquisition channels respectively, and is superposed by the induced signal being in identical acquisition channel, to obtain 9 superposed signals.
As step S302 and S303, induced signal is mated with the locator field on touch screen, and according to matching result determination position of touch.
9 superposed signals are sent to controlled processing unit 205 and carry out analyzing and processing by collecting unit 204.As Fig. 2, when operator carries out touch control operation in locator field 202, the induced signal superposed respectively in first to the 9th acquisition channel is sent to controlled processing unit 205 by collecting unit 204, controlled processing unit 205 analyzes the induced signal after superposing respectively in these 9 acquisition channels, and analysis result is mated with the combination of channels of locator field, be position of touch with the locator field corresponding to the combination of channels that analysis result matching degree is the highest.
Such as, the induced signal intensity of the acquisition channel at the sensor unit place that each locator field can comprise by control module carries out superposing (as: calculating induced signal intensity sum), to obtain the stack result of the induced signal intensity of each locator field, and the stack result of the induced signal intensity of more each locator field, locator field maximum for stack result is defined as the position of touch control operation.
And for example, controlled processing unit 205 can compare the signal intensity of 9 induction channels, if touch control operation occurs in locator field 202, what then induced signal intensity was maximum is the first acquisition channel, second acquisition channel, 4th acquisition channel and the 5th acquisition channel, now controlled processing unit 205 can extract the label " 1 " of the maximum acquisition channel of signal intensity, " 2 ", " 4 ", " 5 ", and the combination of channels of these labels with each locator field is mated, and then it is the highest with its matching degree to identify the locator field 202 that combination of channels is " 1-2-4-5 ", and then determine that locator field 202 is the region at position of touch place.The label order of the acquisition channel that controlled processing unit 205 extracts can arrange according to the order of signal power, but the present invention is not limited thereto, also can arbitrarily arrange, the matching degree of the arrangement mode of label not materially affect label and combination of channels, because each label extracted can be compared with the combination of channels of each locator field one by one, if each label is all contained in a certain locator field, then this locator field is the region at position of touch place.
In addition, analyze superposed signal and the matching degree of the combination of channels of locator field to be not limited to utilize and to superpose induced signal intensity in each acquisition channel, also by extracting the induced signal feature that other are suitable for detecting position of touch, and the feature extracted and each locator field are carried out mating to detect position of touch.
The present invention, after determining the concrete locator field at position of touch place, namely can realize the location of touch control operation.Therefore, the present invention can realize quick position to touch area, higher compared with other sensor array arrangement formula touch screen real-time, and cost is lower.
In addition, after determining the locator field of position of touch, controlled processing unit 205 of the present invention can also carry out further accurately location by other algorithms to position of touch.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be disk, CD, ROM (read-only memory) or random access memory etc.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (11)
1. a touch control detection device, for detecting the position of touch on touch screen, is characterized in that, described touch control detection device comprises:
Multiple sensing unit, being installed on described touch screen with array way and forming multiple acquisition channel, the sensing unit in each acquisition channel is non-conterminous mutually;
Collecting unit, when the touch control operation on described touch screen being detected, gathers the induced signal in response to described touch control operation from each acquisition channel respectively; And
Controlled processing unit, receives described induced signal, is mated by the locator field that described induced signal and the sensing unit of arranging with array way respectively on described touch screen are formed, and determines described position of touch according to matching result.
2. touch control detection device according to claim 1, is characterized in that, described touch screen comprises multiple described locator field, and each sensing unit in described locator field is respectively from different acquisition channels.
3. touch control detection device according to claim 2, is characterized in that, the acquisition channel part residing for the sensing unit that different locator field comprises is identical or completely different.
4. touch control detection device according to claim 1, it is characterized in that, described controlled processing unit calculates the superposition of the induced signal intensity of the acquisition channel at the sensing unit place of each locator field respectively, and locator field maximum for the stack result of described induced signal intensity is defined as described position of touch.
5. touch control detection device according to claim 1, is characterized in that, the sensing unit in same acquisition channel connects in a series arrangement.
6. touch control detection device according to claim 1, is characterized in that, also comprises described touch screen.
7. a touch control detecting method, it is characterized in that, for detecting the position of touch on touch screen, described touch screen is provided with multiple sensing unit with array way and described sensing unit forms multiple acquisition channel, sensing unit in each acquisition channel is non-conterminous mutually, and described touch control detecting method comprises:
When the touch control operation on described touch screen being detected, gather the induced signal in response to described touch control operation from each acquisition channel respectively;
The locator field that described induced signal and the sensing unit of arranging with array way respectively on described touch screen are formed is mated; And
Described position of touch is determined according to matching result.
8. touch control detecting method according to claim 7, is characterized in that, described touch screen comprises multiple described locator field, and each sensing unit in described locator field is respectively from different acquisition channels.
9. touch control detecting method according to claim 8, is characterized in that, the acquisition channel part residing for the sensing unit that different locator field comprises is identical or completely different.
10. touch control detecting method according to claim 7, it is characterized in that, determine that the step of described position of touch comprises: the superposition calculating the induced signal intensity of the acquisition channel at the sensing unit place of each locator field respectively, and locator field maximum for the stack result of described induced signal intensity is defined as described position of touch.
11. touch control detecting methods according to claim 7, is characterized in that, the sensing unit in same acquisition channel connects in a series arrangement.
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| CN201110359473.7A CN103105958B (en) | 2011-11-14 | 2011-11-14 | Touch control detection device and method |
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| CN201110359473.7A CN103105958B (en) | 2011-11-14 | 2011-11-14 | Touch control detection device and method |
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| CN103105958B true CN103105958B (en) | 2015-11-25 |
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| CN107422914B (en) * | 2017-07-26 | 2020-11-06 | 武汉天马微电子有限公司 | Touch panel, and key channel multiplexing method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101387927A (en) * | 2008-11-04 | 2009-03-18 | 友达光电股份有限公司 | Touch detection method of touch panel |
| CN102184043A (en) * | 2010-08-02 | 2011-09-14 | 深圳市汇顶科技有限公司 | Touch screen terminal as well as touch detection method and system thereof |
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| CN102081487B (en) * | 2009-11-28 | 2013-04-10 | 比亚迪股份有限公司 | Detection method and device of resistance touch screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101387927A (en) * | 2008-11-04 | 2009-03-18 | 友达光电股份有限公司 | Touch detection method of touch panel |
| CN102184043A (en) * | 2010-08-02 | 2011-09-14 | 深圳市汇顶科技有限公司 | Touch screen terminal as well as touch detection method and system thereof |
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