CN103677068B - A kind of control method of electric field intensity and system - Google Patents

A kind of control method of electric field intensity and system Download PDF

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Publication number
CN103677068B
CN103677068B CN201210345544.2A CN201210345544A CN103677068B CN 103677068 B CN103677068 B CN 103677068B CN 201210345544 A CN201210345544 A CN 201210345544A CN 103677068 B CN103677068 B CN 103677068B
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capacitor plate
plate group
detection
capacitor
electric field
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CN103677068A (en
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阳光
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Lenovo Beijing Ltd
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Lenovo Beijing Ltd
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Priority to CN201210345544.2A priority Critical patent/CN103677068B/en
Priority to US14/348,256 priority patent/US9494630B2/en
Priority to PCT/CN2013/079237 priority patent/WO2014019444A1/en
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Abstract

This application provides a kind of control method of electric field intensity, comprise: when the detection capacitance threshold value that Detection capacitance pole plate group produces reaches preset critical, change the relative position in described capacitor plate group between each capacitor plate or annexation, regulate the electric field intensity that described capacitor plate group produces.The electric field intensity control method that application the application provides, when the electric field intensity that capacitor plate group produces can not cover object to be detected, by changing relative position between each capacitor plate or annexation, increase the electric field intensity that capacitor plate group produces, the electric field intensity that capacitor plate group is produced continues to cover object to be detected.

Description

A kind of control method of electric field intensity and system
Technical field
The application relates to electric field detection field, particularly a kind of control method of electric field intensity and system.
Background technology
Electric capacity for touch of future generation provides 3D to input every empty detection technique, produces electric field by capacitor plate and covers object to be detected, thus detect the distance between object to be detected and capacitor plate.
Existing capacitor plate group is fixedly installed, and the intensity of its electric field produced is fixing, namely produces the limited coverage area of electric field, can not carry out effective distance detect the object to be detected be in outside electric field coverage scales.
Summary of the invention
Technical problems to be solved in this application are to provide a kind of Enhancement Method of electric field intensity, can regulate, promote the accuracy of detection to object to be detected to the electric field intensity that capacitor plate produces.
Present invention also provides a kind of regulating system of electric field intensity, in order to ensure said method implementation and application in practice.
In order to solve the problem, this application discloses a kind of control method of electric field intensity, comprising:
When the detection capacitance threshold value that Detection capacitance pole plate group produces reaches preset critical,
Change the relative position in described capacitor plate group between each capacitor plate or annexation,
Regulate the electric field intensity that described capacitor plate group produces.
Above-mentioned method, preferably, the detection capacitance threshold value that described Detection capacitance pole plate group produces reaches preset critical and comprises:
Determine the direction vector of the relatively described capacitor plate group of object to be detected;
When the detection electric capacity that described capacitor plate group produces can not cover described object to be detected on described direction vector, judge that the detection capacitance threshold value that described capacitor plate group produces reaches preset critical.
Above-mentioned method, preferably, the relative position in described change capacitor plate group between each capacitor plate comprises:
Change the global shape of described capacitor plate group, make described capacitor plate group form curvature on described direction vector.
Above-mentioned method, preferably, before the described method of execution, also comprises:
Preset at least two group capacitor plate groups; Wherein each capacitor plate group to produce the maximum capacitor of detection electric capacity different.
Above-mentioned method, preferably, also comprises:
When the detection capacitance threshold value detecting that the relative object to be detected of capacitance present pole plate group produces reaches preset critical,
Described capacitance present pole plate group is switched to the first capacitor plate group; The maximum capacitor that described first pole plate group produces detection electric capacity is greater than the maximum capacitor that capacitance present pole plate group produces detection electric capacity.
Above-mentioned method, preferably, the annexation in described change capacitor plate group between each capacitor plate comprises:
At least two capacitor plates are chosen in described capacitor plate group;
Each capacitor plate chosen is associated, forms the second capacitor plate group;
The detection electric capacity that described second capacitor plate group produces on described direction vector can cover testee.
A regulating system for electric field intensity, comprising:
Detecting unit, whether the detection capacitance threshold value produced for Detection capacitance pole plate group reaches preset critical;
Regulon, for when the detection capacitance threshold value that described detecting unit Detection capacitance pole plate group produces reaches preset critical, change the relative position in described capacitor plate group between each capacitor plate or annexation, regulate the electric field intensity that described capacitor plate group produces.
Above-mentioned system, preferably, described detecting unit comprises:
Determine subelement, for determining the direction vector of the relatively described capacitor plate group of object to be detected;
Judge subelement, for when the detection electric capacity that described capacitor plate group produces can not cover described object to be detected at described direction vector, judge that the detection capacitance threshold value that described capacitor plate group produces reaches preset critical.
Above-mentioned system, preferably, described regulon comprises:
First regulates subelement, for changing the global shape of described capacitor plate group, makes described capacitor plate group form curvature on described direction vector.
Above-mentioned system, preferably, described regulon comprises:
Second regulates subelement, for choosing at least two capacitor plates in described capacitor plate group; Each capacitor plate group chosen is associated, forms the second capacitor plate group; The detection electric capacity that described second capacitor plate group produces on described direction vector can cover testee.
Compared with prior art, the application comprises following advantage:
Disclosed in this application a kind of control method of electric field intensity, when the detection capacitance threshold value that Detection capacitance pole plate group produces reaches preset critical, change the relative position in described capacitor plate group between each capacitor plate or annexation, regulate the electric field intensity that described capacitor plate group produces.Application.The control method of the electric field intensity that application the application provides, when the electric field intensity that capacitance present pole plate group produces can not cover object to be detected, by changing relative position between each capacitor plate or annexation, increase the electric field intensity that capacitor plate group produces, the electric field intensity that capacitor plate group is produced continues to cover object to be detected, thus the accuracy of detection of deduction to object to be detected.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present application, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the application, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the process flow diagram of the control method embodiment one of a kind of electric field intensity of the application;
Fig. 2 is the another process flow diagram of the control method embodiment one of a kind of electric field intensity of the application;
Fig. 3 is the process flow diagram of the control method embodiment two of a kind of electric field intensity of the application;
Fig. 4 is the another process flow diagram of the control method embodiment one of a kind of electric field intensity of the application;
Fig. 5 is the first schematic diagram of control method one instantiation of a kind of electric field intensity of the application;
Fig. 6 is the second schematic diagram of control method one instantiation of a kind of electric field intensity of the application;
Fig. 7 is the 3rd schematic diagram of control method one instantiation of a kind of electric field intensity of the application;
Fig. 8 is the first schematic diagram of the another instantiation of the control method of a kind of electric field intensity of the application;
Fig. 9 is the second schematic diagram of the another instantiation of the control method of a kind of electric field intensity of the application;
Figure 10 is the 3rd schematic diagram of the another instantiation of the control method of a kind of electric field intensity of the application;
Figure 11 is the structural representation of the embodiment one of the regulating system of a kind of electric field intensity of the application;
Figure 12 is the structural representation of the embodiment two of the regulating system of a kind of electric field intensity of the application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, be clearly and completely described the technical scheme in the embodiment of the present application, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the application's protection.
The application can be used in numerous general or special purpose calculation element environment or configuration.Such as: personal computer, server computer, handheld device or portable set, laptop device, multi-processor device, the distributed computing environment comprising above any device or equipment etc.
With reference to figure 1, show the method flow diagram of the control method of a kind of electric field intensity of the application, comprising:
Step S101: when the detection capacitance threshold value that Detection capacitance pole plate group produces reaches with critical value, performs step S102;
Application capacitor plate group produces electric field and covers testee, thus when detecting the distance between testee and capacitor plate, distance between object to be detected distance capacitor plate group is far, when exceeding the coverage of capacitor plate group, now well can not complete the detection of the spacing of object to be detected and capacitor plate group.
Whether the detection capacitance threshold value providing the generation of a kind of Detection capacitance pole plate group in the application reaches the method for critical value, and its implementation as shown in Figure 2, comprising:
Step S201: the direction vector determining the relatively described capacitor plate group of object to be detected;
Step S202: judge whether the detection electric capacity that capacitor plate group produces can cover object to be detected on described direction vector, if not, performs step S203;
Step S203: judge that the detection capacitance threshold value that described capacitor plate group produces reaches preset critical.
When capacitor plate group generation detection electric capacity covers testee, due to the factor such as putting position and direction of capacitor plate group, a direction vector is there is between capacitor plate group and testee, the detection electric capacity that capacitor plate group produces on described direction vector may not be the maximum capacitor that capacitor plate group can produce, the detection capacitance threshold value produced on described direction vector when described capacitor plate group reaches critical value, when namely can not cover testee, namely perform step S102.
Step S102: change the relative position in described capacitor plate group between each capacitor plate or annexation;
When capacitor plate group is on described direction vector, the detection electric capacity produced be when can not cover testee, can increase the electric capacity intensity that capacitor plate group produces by changing relative position in described capacitor plate group between each capacitor plate or annexation.
Wherein, the relative position in described change capacitor plate group between each capacitor plate comprises:
Change the global shape of described capacitor plate group, make described capacitor plate group form curvature on described direction vector.
The integral capacitor pole plate that described curvature is formed for each capacitor plate in described capacitor plate group to recessed go out certain curvature, the detection electric capacity intensity that the capacitor plate group now with certain curvature produces is greater than the detection electric capacity that initial capacitance pole plate group produces.
For this specific implementation process of the relative position how changed in capacitor plate group between each capacitor plate, this application provides an instantiation and be described, as follows:
Be a capacitor plate group see Fig. 5, Fig. 5, described capacitor plate group comprises capacitor plate 1a, capacitor plate 2a, capacitor plate 3a and capacitor plate 4a; When the detection electric capacity that capacitor plate group produces can not cover testee, change the relative position between each capacitor plate group, change the capacitor plate group global shape behind position as shown in Figure 6, now, one is had to recessed curvature between capacitor plate 2a and capacitor plate 3a, due to the existence of this curvature, the intensity changing the detection electric capacity that the capacitor plate group after global shape produces on the direction vector of relative testee is greater than the detection electric capacity intensity that initial capacitance pole plate group produces.
The control method of the electric field intensity provided in the application, on the basis changing this implementation of relative position between each capacitor plate, provide another specific implementation process of the control method of electric field intensity, as shown in Fig. 3 that the embodiment of the present application provides, comprising:
Step S301: preset at least two group capacitor plate groups; The maximum capacitor wherein producing detection electric capacity described in each capacitor plate group is different;
Step S302: judge whether the detection capacitance threshold value that the relative object to be detected of capacitance present pole plate group produces reaches preset critical; If so, step S303 is performed;
Step S303: described capacitance present pole plate group is switched to the first capacitor plate group; The maximum capacitor that described first pole plate group produces detection electric capacity is greater than the maximum intensity that capacitance present pole plate group produces detection electric capacity.
See Fig. 7, be provided with two groups of capacitor plate groups, wherein:
Capacitor plate 1a, capacitor plate 2a, capacitor plate 3a and capacitor plate 4a form capacitance present pole plate, produce detection electric capacity and carry out electric field covering to testee;
Capacitor plate 1b, capacitor plate 2b, capacitor plate 3b and capacitor plate 4b is the first capacitor plate group, producing detection electric capacity in capacitance present pole plate group carries out in the process of electric field covering to testee, first capacitor plate group is idle capacity pole plate group, do not produce detection electric capacity, the detection electric capacity that capacitance present pole plate group produces reaches preset critical, when can not continue to cover detecting object, stop capacitance present pole plate group to produce detection electric capacity, enable the first capacitor plate group generation detection electric capacity and electric field covering is carried out to testee.
As shown in Figure 7, in the first capacitor plate group, between capacitor plate 2b and capacitor plate 3b, form concave curvature, due to the existence of this lower concave curvature, increase the capacitive sensing between capacitor plate, thus increase the electric field intensity of integral capacitor pole plate group generation.
Annexation in described change capacitor plate group between each capacitor plate comprises, as shown in the embodiment of the present application Fig. 4:
Step S401: choose at least two capacitor plates in described capacitor plate group;
Step S402: associate each capacitor plate chosen, forms the second capacitor plate group; The detection electric capacity that described second capacitor plate group produces at described direction vector can cover testee.
See Fig. 8 that the embodiment of the present application provides, capacitor plate 1c, capacitor plate 2c, capacitor plate 3c and capacitor plate 4c, form a capacitor plate group, produces detection electric capacity and carry out electric field covering to tested object A; The detection electric capacity produced when capacitor plate group reaches preset critical, when can not carry out electric field covering to testee, changes capacitor plate 1c, capacitor plate 2c, the annexation between capacitor plate 3c and capacitor plate 4c;
Wherein a kind of change can see Fig. 9, the change of the annexation in Fig. 9 between each capacitor plate, make the new capacitor plate group formed produce concave curvature, the implementation of this principle as the relative position between each capacitor plate of above-mentioned change is consistent.
In another, implementation can see Figure 10, multiple capacitor plate can be put for different tested objects, in Figure 10, from capacitor plate 1d to capacitor plate 13d, respective putting position is different, as a certain testee A, select wherein capacitor plate 1d, capacitor plate 2d, capacitor plate 3d and capacitor plate 4d form a capacitor plate group a, can produce detection electric capacity and carry out electric field covering to testee A.
As replacing one testee A1, and this testee relative capacity pole plate 1d, capacitor plate 2d, the capacitor plate group a that capacitor plate 3d and capacitor plate 4d forms is distant, when the detection electric capacity that capacitor plate group a produces can not cover testee A1, again chooses capacitor plate, as chosen capacitor plate 10d, capacitor plate 7d, capacitor plate 8d and capacitor plate 13d, form the second capacitor plate group; Electric field covering is carried out to testee A1.
Step S103: regulate the intensity that described capacitor plate group produces.
By above various implementation, the regulating action of electric field intensity that capacitor plate group is produced can be reached, thus can better detect by testee, obtain higher detection accuracy and detection range accurately.
Corresponding with a kind of shown in Fig. 1 control method of electric field intensity, see Figure 11, the application also provides a kind of regulating system of electric field intensity, and this system can comprise:
Detecting unit 501 and regulon 502;
Wherein:
Whether the detection capacitance threshold value that described detecting unit 501 produces for Detection capacitance pole plate group reaches preset critical;
Described regulon 502 is for when the detection capacitance threshold value that described detecting unit 501 Detection capacitance pole plate group produces reaches preset critical, change the relative position in described capacitor plate group between each capacitor plate or annexation, regulate the electric field intensity that described capacitor plate group produces.
On the basis of Figure 11, present invention also provides another structural representation of a kind of electric field intensity regulating system, as shown in figure 12, wherein:
Detecting unit 501 comprises:
Determine subelement 503 and judge subelement 504;
Describedly determine that subelement 503 is for determining the direction vector of the relatively described capacitor plate group of object to be detected;
Described judgement subelement 504, for when the detection electric capacity that described capacitor plate group produces can not cover described object to be detected on described direction vector, judges that the detection capacitance threshold value that described capacitor plate group produces reaches preset critical.
Regulon 502 comprises:
First regulates subelement 505, for changing the global shape of described capacitor plate group, makes described capacitor plate group form curvature on described direction vector.
Second regulates subelement 506, for choosing at least two capacitor plates in described capacitor plate group; Each capacitor plate group chosen is associated, forms the second capacitor plate group; The detection electric capacity that described second capacitor plate group produces on described direction vector can cover testee.
It should be noted that, each embodiment in this instructions all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.For device class embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
For convenience of description, various unit is divided into describe respectively with function when describing above device.Certainly, the function of each unit can be realized in same or multiple software and/or hardware when implementing the application.
As seen through the above description of the embodiments, those skilled in the art can be well understood to the mode that the application can add required general hardware platform by software and realizes.Based on such understanding, the technical scheme of the application can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method described in some part of each embodiment of the application or embodiment.
Above the control method of a kind of electric field intensity that the application provides and system are described in detail, apply specific case herein to set forth the principle of the application and embodiment, the explanation of above embodiment is just for helping method and the core concept thereof of understanding the application; Meanwhile, for one of ordinary skill in the art, according to the thought of the application, all will change in specific embodiments and applications, in sum, this description should not be construed as the restriction to the application.

Claims (10)

1. a control method for electric field intensity, is characterized in that, comprising:
When the detection capacitance threshold value that Detection capacitance pole plate group produces reaches preset critical,
Change the relative position in described capacitor plate group between each capacitor plate or annexation,
Regulate the electric field intensity that described capacitor plate group produces;
Wherein, the relative position in described change capacitor plate group between each capacitor plate comprises:
Change the global shape of described capacitor plate group.
2. method according to claim 1, is characterized in that, the detection capacitance threshold value that described Detection capacitance pole plate group produces reaches preset critical and comprises:
Determine the direction vector of the relatively described capacitor plate group of object to be detected;
When the detection electric capacity that described capacitor plate group produces can not cover described object to be detected on described direction vector, judge that the detection capacitance threshold value that described capacitor plate group produces reaches preset critical.
3. method according to claim 2, is characterized in that, the relative position in described change capacitor plate group between each capacitor plate comprises:
Change the global shape of described capacitor plate group, make described capacitor plate group form curvature on described direction vector.
4. method according to claim 1, is characterized in that, before the described method of execution, also comprises:
Preset at least two group capacitor plate groups; Wherein each capacitor plate group to produce the maximum capacitor of detection electric capacity different.
5. method according to claim 4, is characterized in that, also comprises:
When the detection capacitance threshold value detecting that the relative object to be detected of capacitance present pole plate group produces reaches preset critical,
Described capacitance present pole plate group is switched to the first capacitor plate group; The maximum capacitor that described first capacitor plate group produces detection electric capacity is greater than the maximum capacitor that capacitance present pole plate group produces detection electric capacity.
6. method according to claim 2, is characterized in that, the annexation in described change capacitor plate group between each capacitor plate comprises:
At least two capacitor plates are chosen in described capacitor plate group;
Each capacitor plate chosen is associated, forms the second capacitor plate group;
The detection electric capacity that described second capacitor plate group produces on described direction vector can cover testee.
7. a regulating system for electric field intensity, is characterized in that, comprising:
Detecting unit, whether the detection capacitance threshold value produced for Detection capacitance pole plate group reaches preset critical;
Regulon, for when the detection capacitance threshold value that described detecting unit Detection capacitance pole plate group produces reaches preset critical, change the relative position in described capacitor plate group between each capacitor plate or annexation, regulate the electric field intensity that described capacitor plate group produces;
Wherein, described regulon comprises:
First regulates subelement, for changing the global shape of described capacitor plate group.
8. system according to claim 7, is characterized in that, described detecting unit comprises:
Determine subelement, for determining the direction vector of the relatively described capacitor plate group of object to be detected;
Judge subelement, for when the detection electric capacity that described capacitor plate group produces can not cover described object to be detected at described direction vector, judge that the detection capacitance threshold value that described capacitor plate group produces reaches preset critical.
9. system according to claim 8, is characterized in that, described regulon comprises:
First regulates subelement, for changing the global shape of described capacitor plate group, makes described capacitor plate group form curvature on described direction vector.
10. system according to claim 8, is characterized in that, described regulon comprises:
Second regulates subelement, for choosing at least two capacitor plates in described capacitor plate group; Each capacitor plate group chosen is associated, forms the second capacitor plate group; The detection electric capacity that described second capacitor plate group produces on described direction vector can cover testee.
CN201210345544.2A 2012-07-30 2012-09-17 A kind of control method of electric field intensity and system Active CN103677068B (en)

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Application Number Priority Date Filing Date Title
CN201210345544.2A CN103677068B (en) 2012-09-17 2012-09-17 A kind of control method of electric field intensity and system
US14/348,256 US9494630B2 (en) 2012-07-30 2013-07-11 Method and system for adjusting electric field intensity
PCT/CN2013/079237 WO2014019444A1 (en) 2012-07-30 2013-07-11 Method and system for adjusting electric field intensity

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CN201210345544.2A CN103677068B (en) 2012-09-17 2012-09-17 A kind of control method of electric field intensity and system

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CN103677068B true CN103677068B (en) 2015-12-16

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101140158A (en) * 2007-10-12 2008-03-12 东南大学 Electric capacity method testing device for electrostrictive material characteristic
CN101315834A (en) * 2008-06-23 2008-12-03 南京电气(集团)有限责任公司 Design method of variable capacitor, variable step and capacitor core with segmented equal thickness
CN101608928A (en) * 2009-07-14 2009-12-23 重庆理工大学 A kind of method and detection system of carrying out the measured physical quantity detection based on general capacitor
CN102297884A (en) * 2011-07-06 2011-12-28 北京工业大学 Multi-array self-adaptive electrical capacitance tomography sensor apparatus
CN102427357A (en) * 2011-12-07 2012-04-25 江苏惠通集团有限责任公司 Capacitor touch key system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101140158A (en) * 2007-10-12 2008-03-12 东南大学 Electric capacity method testing device for electrostrictive material characteristic
CN101315834A (en) * 2008-06-23 2008-12-03 南京电气(集团)有限责任公司 Design method of variable capacitor, variable step and capacitor core with segmented equal thickness
CN101608928A (en) * 2009-07-14 2009-12-23 重庆理工大学 A kind of method and detection system of carrying out the measured physical quantity detection based on general capacitor
CN102297884A (en) * 2011-07-06 2011-12-28 北京工业大学 Multi-array self-adaptive electrical capacitance tomography sensor apparatus
CN102427357A (en) * 2011-12-07 2012-04-25 江苏惠通集团有限责任公司 Capacitor touch key system

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