CN104062326A - Environment detection method and device - Google Patents
Environment detection method and device Download PDFInfo
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- CN104062326A CN104062326A CN201310094774.0A CN201310094774A CN104062326A CN 104062326 A CN104062326 A CN 104062326A CN 201310094774 A CN201310094774 A CN 201310094774A CN 104062326 A CN104062326 A CN 104062326A
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- 238000001514 detection method Methods 0.000 title claims abstract description 128
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000012360 testing method Methods 0.000 claims description 68
- 230000007613 environmental effect Effects 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 7
- 230000001915 proofreading effect Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
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Abstract
The invention discloses an environment detection method and device, which can detect an environment value with influence on electronic equipment. The environment detection method is applied to electronic equipment which comprises an environment detection device; the environment detection device comprises a first capacitance detection plate, and a grounded environment detection plate; the environment detection plate is arranged parallel to the first capacitance detection plate. The method comprises the following steps: detecting a capacitance between the first capacitance detection plate and the environment detection plate by using the first capacitance detection plate to obtain a first detection result; determining whether the first detection result is within a capacitance range in a preset capacitance environment comparison table so as to obtain a determination result, wherein the preset capacitance environment comparison table at least contains capacitance values corresponding to different environment values; when the determination result shows that the first detection result is within the capacitance range in the preset capacitance environment comparison table, searching an environment value from the preset capacitance environment comparison table, wherein the environment value is corresponding to a capacitance value most approximating to the first detection result, and outputting the environment value.
Description
Technical field
The present invention relates to electronic technology field, relate in particular to a kind of environment detection method and device.
Background technology
In the prior art, have in touch-screen and touch pad electronic equipment, its sensitivity is restricted and temperature often, and the multiple reason such as humidity is higher in temperature, and under the comparatively obvious condition of air humidity, its sensitivity and user there will be deviation.Have a strong impact on user's experience.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of environment detection method and device, can detect the influential environment value of electronic equipment.
In order to solve the problems of the technologies described above, the invention provides a kind of environment detection method, be applied to electronic equipment, it is characterized in that, described electronic equipment comprises an environmental detection set, described environmental detection set comprises that one first capacitance detection plate and is set to the environment measuring plate of ground connection, and described environment measuring plate and described the first capacitance detection plate be arranged in parallel, and described method comprises:
Utilize described the first capacitance detection plate to detect the electric capacity between described the first capacitance detection plate and environment measuring plate, obtain the first testing result;
Judge that described the first testing result whether in the capacitance range in the predetermined capacitive environment table of comparisons, obtains a judged result, in the described predetermined capacitive environment table of comparisons, at least comprise the capacitance that varying environment value is corresponding;
Within described judged result shows the capacitance range of described the first testing result in the predetermined capacitive environment table of comparisons time, from the described predetermined capacitive environment table of comparisons, search and the corresponding environment value of the immediate capacitance of described the first testing result, and output.
Further, described electronic equipment also comprises the second capacitance detection plate, described the second capacitance detection plate, for detection of described the second capacitance detection plate and the electric capacity between touch objects on it, also comprises the electric capacity corrected value that varying environment value is corresponding in the described predetermined capacitive environment table of comparisons;
Described method also comprises:
Utilize described the second capacitance detection plate to detect and obtain the second testing result;
From the described predetermined capacitive environment table of comparisons, search and the corresponding electric capacity corrected value of described environment value;
Utilize described electric capacity corrected value to proofread and correct described the second testing result.
Further, describedly utilize described electric capacity corrected value to proofread and correct described the second testing result, comprising: described the second testing result deducts value after described electric capacity corrected value as the second testing result after proofreading and correct.
Further, described environment measuring plate is conduction reticulate texture, and described environment value is humidity value.
Further, described environment measuring plate is temperature-sensitive material, and described environment value is temperature value.
In order to solve the problems of the technologies described above, the present invention also provides a kind of environmental detection set, be applied to electronic equipment, it is characterized in that, described environmental detection set comprises that one first capacitance detection plate, is set to environment measuring plate and a detection chip of ground connection, wherein said environment measuring plate and described the first capacitance detection plate be arranged in parallel, and described detection chip comprises judging unit and environment value output unit, wherein:
Described the first capacitance detection plate, for detection of the electric capacity between described the first capacitance detection plate and environment measuring plate, obtains the first testing result;
Described judging unit, for judging that described the first testing result whether in the capacitance range of the predetermined capacitive environment table of comparisons, obtains a judged result, at least comprises the capacitance that varying environment value is corresponding in the described predetermined capacitive environment table of comparisons;
Described environment value output unit, for in the time that described judged result shows that described the first testing result is in the capacitance range of the predetermined capacitive environment table of comparisons, from the described predetermined capacitive environment table of comparisons, search and the corresponding environment value of the immediate capacitance of described the first testing result, and output.
Further, described detection chip also comprises correcting unit, in the described predetermined capacitive environment table of comparisons, also comprises the electric capacity corrected value that varying environment value is corresponding;
Described correcting unit, be used for from the described predetermined capacitive environment table of comparisons, search the corresponding electric capacity corrected value of environment value of described environment value output unit output, utilize described electric capacity corrected value to proofread and correct described the second testing result, described the second testing result is that the second capacitance detection plate of described electronic equipment detects described the second capacitance detection plate and testing result that on it, electric capacity between touch objects obtains.
Further, described correcting unit utilizes described electric capacity corrected value to proofread and correct described the second testing result, comprising: described correcting unit deducts value after described electric capacity corrected value as the second testing result after proofreading and correct by described the second testing result.
Further, described environment measuring plate is conduction reticulate texture, and described environment value is humidity value.
Further, described environment measuring plate is temperature-sensitive material, and described environment value is temperature value.
Compared with prior art, utilize capacitance reflection environment value, realize simple.Can also realize the correction to capacitance signal in capacitive touch screen or touch pad by the method in addition, reduce the impact of external environment on capacitive touch screen or touch pad, improve the adaptive faculty of electronic equipment to environment.
Other features and advantages of the present invention will be set forth in the following description, and, partly from instructions, become apparent, or understand by implementing the present invention.Object of the present invention and other advantages can be realized and be obtained by specifically noted structure in instructions, claims and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used to provide the further understanding to technical solution of the present invention, and forms a part for instructions, is used from and explains technical scheme of the present invention with the application's embodiment mono-, does not form the restriction to technical solution of the present invention.
Fig. 1 is the embodiment of the present invention 1 environment detection method process flow diagram;
Fig. 2 is the embodiment of the present invention 1 environmental detection set structural representation;
Fig. 3 is the embodiment of the present invention 2 environment detection method process flow diagrams;
Fig. 4 is the embodiment of the present invention 2 environmental detection set structural representations;
Fig. 5 a-5d is that the embodiment of the present invention 3 environment measuring plates are the cancellated schematic diagram of conduction
Fig. 6 a-6c is the schematic diagram that the embodiment of the present invention 4 environment measuring plates are temperature-sensitive material.
Can in the computer system such as one group of computer executable instructions, carry out in the step shown in the process flow diagram of accompanying drawing.And, although there is shown logical order in flow process, in some cases, can carry out shown or described step with the order being different from herein.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing, embodiments of the invention are elaborated.It should be noted that, in the situation that not conflicting, the combination in any mutually of the feature in embodiment and embodiment in the application.
Embodiment 1
The present embodiment is described a kind of environment detection method that is applied to electronic equipment, this electronic equipment comprises an environmental detection set, this environmental detection set comprises that one first capacitance detection plate and is set to the environment measuring plate of ground connection, described environment measuring plate and described the first capacitance detection plate be arranged in parallel, Fig. 1 is the present embodiment environment detection method process flow diagram, as shown in the figure, comprise the following steps:
Step 101, utilizes described the first capacitance detection plate to detect the electric capacity between described the first capacitance detection plate and environment measuring plate, obtains the first testing result;
Step 102, judges that described the first testing result whether in the capacitance range in the predetermined capacitive environment table of comparisons, obtains a judged result, in the described predetermined capacitive environment table of comparisons, at least comprises the capacitance that varying environment value is corresponding;
Step 103, within described judged result shows the capacitance range of described the first testing result in the predetermined capacitive environment table of comparisons time, from the described predetermined capacitive environment table of comparisons, search and the corresponding environment value of the immediate capacitance of described the first testing result, and output.
Environment value and capacitance in the above-mentioned predetermined capacitive environment table of comparisons can obtain by emulation.For example under laboratory environment, test capacitance corresponding to varying environment value, the capacitance that in the capacitive environment table of comparisons, arbitrary environment value is corresponding can be mean value or the capacitance range repeatedly measuring.In above-mentioned steps 102, judge that the first testing result is whether in the capacitance range in the predetermined capacitive environment table of comparisons, the capacitance range in the predetermined capacitive environment table of comparisons described herein refers to the capacitance range that in the capacitive environment table of comparisons, all capacitances form.A kind of example of the predetermined capacitive environment table of comparisons is as shown in table 1.
Table 1
| Environment value | Capacitance |
| M1 | C1 |
| M2 | C2-C3 |
| …… | …… |
By the present embodiment method, utilize capacitance reflection environment value, can detect the influential environment value of electronic equipment, realize simple.
Realize the environmental detection set of said method as shown in Figure 2, this application of installation is in electronic equipment, this environmental detection set comprises that one first capacitance detection plate 201, is set to environment measuring plate 202 and a detection chip 203 of ground connection, wherein environment measuring plate and the first capacitance detection plate be arranged in parallel, described detection chip comprises judging unit 2031 and environment value output unit 2032, wherein:
Described the first capacitance detection plate 201, for detection of the electric capacity between described the first capacitance detection plate and environment measuring plate 202, obtains the first testing result;
Described judging unit 2031, for judging that described the first testing result whether in the capacitance range of the predetermined capacitive environment table of comparisons, obtains a judged result, at least comprises the capacitance that varying environment value is corresponding in the described predetermined capacitive environment table of comparisons;
Described environment value output unit 2032, for in the time that described judged result shows that described the first testing result is in the capacitance range of the predetermined capacitive environment table of comparisons, from the described predetermined capacitive environment table of comparisons, search and the corresponding environment value of the immediate capacitance of described the first testing result, and output.
Embodiment 2
How the present embodiment introduction utilizes embodiment 1 method and apparatus to realize is proofreaied and correct.The so-called capacitance signal referring to capacitive touch screen or touch pad acquisition of proofreading and correct is proofreaied and correct, be that above-mentioned environmental detection set is applied to one and comprises in the electronic equipment of the second capacitance detection plate, this second capacitance detection plate is for detection of the second capacitance detection plate and the electric capacity between touch objects (as finger) on it.Because electric capacity changes with the difference of temperature, humidity or Grounding, its less stable, tend to produce drift phenomenon, therefore detect current environment value by the method for above-described embodiment 1, the capacitance that can detect the second capacitance detection plate is proofreaied and correct.
As shown in Figure 3, comprise the following steps:
Step 301, utilizes described the first capacitance detection plate to detect the electric capacity between described the first capacitance detection plate and environment measuring plate, obtains the first testing result;
Step 302, judges that described the first testing result whether in the capacitance range in the predetermined capacitive environment table of comparisons, obtains a judged result, in the described predetermined capacitive environment table of comparisons, at least comprises the capacitance that varying environment value is corresponding;
Step 303, within described judged result shows the capacitance range of described the first testing result in the predetermined capacitive environment table of comparisons time, from the described predetermined capacitive environment table of comparisons, search and the corresponding environment value of the immediate capacitance of described the first testing result output;
Step 304, utilizes described the second capacitance detection plate to detect and obtains the second testing result;
Step 305, from the described predetermined capacitive environment table of comparisons, searches and the corresponding electric capacity corrected value of described environment value;
Step 306, utilizes described electric capacity corrected value to proofread and correct described the second testing result.
The execution of above-mentioned steps 304 is not limited to this opportunity, as long as obtained the second testing result before step 306.
Above-mentioned steps 305 also can merge and carry out with step 303,, from the predetermined capacitive environment table of comparisons, searches and the corresponding environment value of the immediate capacitance of described the first testing result, and electric capacity corrected value corresponding to described environment value.
The electric capacity corrected value that utilizes in above-mentioned steps 306 is proofreaied and correct and is referred to the second testing result: the second testing result deducts value after electric capacity corrected value as the second testing result after proofreading and correct.Except this kind of correcting mode, can also heighten or reduce relevant capacitor threshold value, for example the capacitance threshold value in order to prevent that false touch is set according to this corrected value.
In the present embodiment, in the above-mentioned predetermined capacitive environment table of comparisons except comprising capacitance corresponding to varying environment value, also comprise the electric capacity corrected value that varying environment value is corresponding, as shown in table 2, the capacitance that the capacitance that electric capacity corrected value records during by current environment value records while deducting basic environment value.
Table 2
| Environment value | Capacitance | Electric capacity corrected value |
| M1 | C1 | C1-C0 |
| M2 | C2 | C2-C0 |
| M3 | C3 | C3-C0 |
| …… | …… | …… |
The capacitance recording when C0 is basic environment value in table.
Can be the second testing result to be proofreaied and correct the opportunity of correct operation at every turn, or only in the time that drift is more serious, proofread and correct by thresholding control is set.Thresholding to be set as example, as obtained after environment value, comparatively severe if this environment value shows environment, read electric capacity corrected value the second testing result is carried out to correct operation.This thresholding control also can arrange as basis taking the second testing result, as the second testing result conforms to a predetermined condition, it is proofreaied and correct.
Realize the environmental detection set of the present embodiment method as shown in Figure 4, be also to comprise in detection chip correcting unit 2033 with the difference of device in embodiment 1, this correcting unit 2033 is for from the described predetermined capacitive environment table of comparisons, search the corresponding electric capacity corrected value of environment value of described environment value output unit output, utilize described electric capacity corrected value to proofread and correct described the second testing result, the second testing result described herein is that the second capacitance detection plate of described electronic equipment detects described the second capacitance detection plate and testing result that on it, electric capacity between touch objects obtains.
The present embodiment, by the testing result of the second capacitance detection plate is proofreaied and correct, reduces the impact of external environment on electronic equipment, improves the adaptive faculty of electronic equipment to environment.
Embodiment 3
In the present embodiment, taking environment value as humidity value, environment measuring plate is that conduction reticulate texture is that example describes.
Fig. 5 is the exemplary plot of a kind of environment measuring plate and capacitance detection plate, wherein: the exemplary plot that Fig. 5 a is a kind of capacitance detection plate, this capacitance detection plate is a circular metal plate; Fig. 5 b is the vertical view arranging in capacitance detection plate after conduction reticulate texture; Fig. 5 c is the front elevation arranging in capacitance detection plate after conduction reticulate texture, and this conduction reticulate texture is wire netting, is a kind of set-up mode of wire netting shown in figure; Fig. 5 d is conduction reticulate texture and the capacitance detection plate schematic diagram in bad border of humidity.
When the present inventor finds this capacitance detection plate (Capacitive sensing pad) to be placed in air, it is subject to humidity effect, can cause signal conversion, and this characteristic can be used as the basis of Humidity Detection.In addition, consider that capacitance detecting is disturbed by other factors easily, therefore, its structure is designed as follows: the conduction reticulate texture of placing a circle ground connection outside capacitance detection plate, as wire netting (Metalnet), the cancellated form of conducting electricity is not limited to this, can adjust accordingly according to place electronic devices structure.This conduction reticulate texture can effectively by reducing, net is outer to be disturbed.And adopt reticulate texture can ensure circulation of air, and in the time that air humidity is large, due to the close together between conduction reticulate texture and capacitance detection plate, therefore capacitance detection plate is adhered to steam, and steam itself can be easy to affect the capacitance between this distance.Can adopt said structure to detect humidity value based on this principle.
Distance between capacitance detection plate and conduction reticulate texture does not have particular/special requirement, and distance is nearer, and humidity is larger on the impact of electric capacity, just more responsive to the detection of humidity.
As shown in Figure 5, this conduction reticulate texture is arranged on capacitance detection plate one side and be arranged in parallel with capacitance detection plate, and this capacitance detection plate is the capacitance between reticulate texture for detection of this capacitance detection plate and conduction, and using this capacitance as the first testing result.
Embodiment 4
In the present embodiment, taking environment value as temperature value, environment measuring plate is made for example by temperature-sensitive material and describes.
The exemplary plot of a kind of environment measuring plate of Fig. 6 and capacitance detection plate, wherein, Fig. 6 a is the schematic diagram of capacitance detection plate and environment measuring plate under original state, in figure, ground connection is environment measuring plate; Fig. 6 b is a kind of exemplary plot of environment measuring plate during with temperature generation deformation; Fig. 6 c is the another kind of exemplary plot of environment measuring plate with temperature generation deformation.
Because temperature-sensitive material can be along with temperature generation deformation, cause the distance between itself and capacitance detection plate to change, thereby cause the variation of the capacitance that capacitance detection plate detects, utilize this principle, can adopt said structure to detect temperature value.
Those skilled in the art should be understood that, each ingredient of the device that above-mentioned the embodiment of the present application provides and/or system, and each step in method, they can concentrate on single calculation element, or are distributed on the network that multiple calculation elements form.Alternatively, they can be realized with the executable program code of calculation element.Thereby, they can be stored in memory storage and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module realize.Like this, the present invention is not restricted to any specific hardware and software combination.
Although the disclosed embodiment of the present invention as above, the embodiment that described content only adopts for ease of understanding the present invention, not in order to limit the present invention.Those of skill in the art under any the present invention; do not departing under the prerequisite of the disclosed spirit and scope of the present invention; can in the form of implementing and details, carry out any amendment and variation; but scope of patent protection of the present invention, still must be as the criterion with the scope that appending claims was defined.
Claims (10)
1. an environment detection method, be applied to electronic equipment, it is characterized in that, described electronic equipment comprises an environmental detection set, described environmental detection set comprises that one first capacitance detection plate and is set to the environment measuring plate of ground connection, described environment measuring plate and described the first capacitance detection plate be arranged in parallel, and described method comprises:
Utilize described the first capacitance detection plate to detect the electric capacity between described the first capacitance detection plate and environment measuring plate, obtain the first testing result;
Judge that described the first testing result whether in the capacitance range in the predetermined capacitive environment table of comparisons, obtains a judged result, in the described predetermined capacitive environment table of comparisons, at least comprise the capacitance that varying environment value is corresponding;
Within described judged result shows the capacitance range of described the first testing result in the predetermined capacitive environment table of comparisons time, from the described predetermined capacitive environment table of comparisons, search and the corresponding environment value of the immediate capacitance of described the first testing result, and output.
2. the method for claim 1, is characterized in that:
Described electronic equipment also comprises the second capacitance detection plate, and described the second capacitance detection plate, for detection of described the second capacitance detection plate and the electric capacity between touch objects on it, also comprises the electric capacity corrected value that varying environment value is corresponding in the described predetermined capacitive environment table of comparisons;
Described method also comprises:
Utilize described the second capacitance detection plate to detect and obtain the second testing result;
From the described predetermined capacitive environment table of comparisons, search and the corresponding electric capacity corrected value of described environment value;
Utilize described electric capacity corrected value to proofread and correct described the second testing result.
3. method as claimed in claim 2, is characterized in that:
Describedly utilize described electric capacity corrected value to proofread and correct described the second testing result, comprising:
Described the second testing result deducts value after described electric capacity corrected value as the second testing result after proofreading and correct.
4. the method as described in claim 1 or 2 or 3, is characterized in that:
Described environment measuring plate is conduction reticulate texture, and described environment value is humidity value.
5. the method as described in claim 1 or 2 or 3, is characterized in that:
Described environment measuring plate is temperature-sensitive material, and described environment value is temperature value.
6. an environmental detection set, be applied to electronic equipment, it is characterized in that, described environmental detection set comprises that one first capacitance detection plate, is set to environment measuring plate and a detection chip of ground connection, wherein said environment measuring plate and described the first capacitance detection plate be arranged in parallel, described detection chip comprises judging unit and environment value output unit, wherein:
Described the first capacitance detection plate, for detection of the electric capacity between described the first capacitance detection plate and environment measuring plate, obtains the first testing result;
Described judging unit, for judging that described the first testing result whether in the capacitance range of the predetermined capacitive environment table of comparisons, obtains a judged result, at least comprises the capacitance that varying environment value is corresponding in the described predetermined capacitive environment table of comparisons;
Described environment value output unit, for in the time that described judged result shows that described the first testing result is in the capacitance range of the predetermined capacitive environment table of comparisons, from the described predetermined capacitive environment table of comparisons, search and the corresponding environment value of the immediate capacitance of described the first testing result, and output.
7. environmental detection set as claimed in claim 6, is characterized in that:
Described detection chip also comprises correcting unit, in the described predetermined capacitive environment table of comparisons, also comprises the electric capacity corrected value that varying environment value is corresponding;
Described correcting unit, be used for from the described predetermined capacitive environment table of comparisons, search the corresponding electric capacity corrected value of environment value of described environment value output unit output, utilize described electric capacity corrected value to proofread and correct described the second testing result, described the second testing result is that the second capacitance detection plate of described electronic equipment detects described the second capacitance detection plate and testing result that on it, electric capacity between touch objects obtains.
8. environmental detection set as claimed in claim 7, is characterized in that:
Described correcting unit utilizes described electric capacity corrected value to proofread and correct described the second testing result, comprising:
Described correcting unit deducts value after described electric capacity corrected value as the second testing result after proofreading and correct by described the second testing result.
9. the environmental detection set as described in claim 6 or 7 or 8, is characterized in that:
Described environment measuring plate is conduction reticulate texture, and described environment value is humidity value.
10. the environmental detection set as described in claim 6 or 7 or 8, is characterized in that:
Described environment measuring plate is temperature-sensitive material, and described environment value is temperature value.
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| CN201310094774.0A CN104062326B (en) | 2013-03-22 | 2013-03-22 | Environment detection method and device |
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|---|---|---|---|
| CN201310094774.0A CN104062326B (en) | 2013-03-22 | 2013-03-22 | Environment detection method and device |
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| CN104062326B (en) | 2017-03-01 |
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