CN111934660A - Method for adjusting key touch threshold and touch key display screen - Google Patents
Method for adjusting key touch threshold and touch key display screen Download PDFInfo
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- CN111934660A CN111934660A CN202010682770.4A CN202010682770A CN111934660A CN 111934660 A CN111934660 A CN 111934660A CN 202010682770 A CN202010682770 A CN 202010682770A CN 111934660 A CN111934660 A CN 111934660A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/30—Modifications for providing a predetermined threshold before switching
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
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Abstract
The invention belongs to the technical field of key control, and particularly relates to a method for adjusting a key touch threshold, which comprises the following steps: s1, recording the capacitance Rn of each key touch and counting the number of times sigma n of the key touch; s2, judging whether the key touch frequency sigma n reaches the set frequency X, and if so, entering S3; if the set number of times X is not reached, returning to S1; s3, judging whether abnormal data exist in the X times of data; if abnormal data exist, deleting the abnormal data, returning to S1 to obtain the capacitance value again to complement the touch capacitance value for X times until no abnormal data exist, and entering S4; s4, calculating an average value m, m ═ f (Σ) of the capacitance values of the X key touchesRXAnd X), calculating a touch capacitance value threshold value M according to the average value M, wherein the M is k M, and k is more than 0 and less than or equal to 1. The key touch threshold value adjusting method solves the problem of key insensitivity caused by different reasons or newly set touch caused by excessive abnormal values in the setting processThe threshold remains an insensitive condition.
Description
Technical Field
The invention belongs to the technical field of key control, and particularly relates to a method for adjusting a key touch threshold value and a touch key display screen.
Background
At present, most touch screens use a fixed threshold value to realize key response, and because the use environments of users are different, extremely severe environment conditions sometimes even occur, so that the phenomenon of key insensitivity occurs in the environments, and even the phenomenon of key insensitivity occurs along with the time lapse, thereby causing great trouble to the users.
In the prior art, a threshold value adjusting method is disclosed, in which a plurality of capacitance average values are calculated as a final touch threshold value after the number of touches reaches a certain number, but the method only considers the sensitivity problem of the touch threshold value under a normal condition, does not consider the problem that the whole capacitance average value changes under the condition that an abnormal touch threshold value occurs, and if an abnormal capacitance value occurs, the average capacitance value is inaccurate, and the finally set threshold value still causes a key insensitivity condition.
Because the touch threshold value of the touch screen can be changed to a certain extent under a series of uncontrollable conditions of different environmental temperatures, different pressing pressures, different pressing angles, different pressing areas and the like, when the actual touch capacitance value is too small to reach the set threshold value, the touch insensitivity phenomenon can occur.
The present invention has been made in view of the above circumstances.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method for eliminating abnormal capacitance values, so that the problem of button insensitivity caused by different reasons or the condition that a newly set touch threshold value is still insensitivity caused by excessive abnormal values in the setting process can be solved more accurately.
In order to solve the technical problem, the invention provides a method for adjusting a key touch threshold, wherein the method comprises the following steps of:
s1, recording the capacitance Rn of each key touch and counting the number of times sigma n of the key touch;
s2, judging whether the key touch frequency sigma n reaches the set frequency X, and if so, entering S3; if the set number of times X is not reached, returning to S1;
s3, judging whether abnormal data exist in the X times of data; if abnormal data exist, deleting the abnormal data, returning to S1 to obtain the capacitance value again to complement the touch capacitance value for X times until no abnormal data exist, and entering S4;
and S4, calculating an average value M of the capacitance values of the X times of key touch, wherein M is f (Sigma RX, X), and calculating a touch capacitance value threshold value M according to the average value M, wherein M is k M, and k is more than 0 and less than or equal to 1.
Further optionally, in step S4, the touch capacitance values Rx of the X key touches are sorted according to the magnitude order, the average value m is calculated after deleting the first a data in sequence and the first b data in reverse sequence,
in a further alternative,
further optionally, the sorted X touch capacitance values are divided into n equal parts, where a-b-X/n.
Further optionally, in step S3, the determining whether there is abnormal data in the X times of data is to compare the touch capacitance values during the X times of pressing with the average value m respectively to determine whether there is abnormal data.
Further optionally, the data is normal data when the difference between the capacitance value touched by the key and the average value m is within a preset difference range, and is abnormal data otherwise.
Further optionally, in step S3, if there is abnormal data, deleting the screened abnormal data one by one until all the abnormal data are deleted, and returning to S1; or, all abnormal data are screened out and deleted uniformly, and then the step returns to S1.
Further optionally, step S1 further includes:
and judging whether the user performs key touch within the effective touch time t, if so, recording a touch capacitance value during each key touch, and if not, exiting the touch threshold value adjusting process.
Further optionally, the effective touch time t needs to satisfy: the minimum interval detection time T1 is less than or equal to T and less than or equal to the maximum interval detection time T2.
Further optionally, in step S4, 0 < k < 1.
Further optionally, performing a key touch adjustment process by entering a key touch threshold adjustment mode;
before performing step S1, the user enters the key touch threshold adjustment mode by simultaneously pressing the set combination key or long pressing a specific key.
Further optionally, after the step S4, step S5 is further executed, whether the touch capacitance threshold M is saved is determined according to the user instruction, and if the user instruction for saving the touch capacitance threshold M is received, the touch capacitance threshold M is set as the final touch threshold, and the key touch threshold adjustment process is exited; otherwise, return to S1.
The invention also provides a touch key display screen which adopts the method for adjusting the key touch threshold value.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects: according to the invention, through a mode of rejecting abnormal capacitance values, the problem of button insensitivity caused by different reasons or the condition that a newly set touch threshold value is still insensitivity caused by excessive abnormal values in the setting process is solved more accurately.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1: is a control flow chart of embodiment 1 of the present invention.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
The embodiment provides a method for adjusting a key touch threshold, which comprises the following steps: in the process of adjusting the key touch threshold, the method comprises the following steps:
s1, recording the capacitance Rn of each key touch and counting the number of times sigma n of the key touch;
s2, judging whether the key touch frequency sigma n reaches the set frequency X, and if so, entering S3; if the set number of times X is not reached, returning to S1;
s3, judging whether abnormal data exist in the X times of data; if abnormal data exist, deleting the abnormal data, returning to S1 to obtain the capacitance value again to complement the touch capacitance value for X times until no abnormal data exist, and entering S4;
and S4, calculating an average value M of the capacitance values of the X times of key touch, wherein M is f (Sigma RX, X), and calculating a touch capacitance value threshold value M according to the average value M, wherein M is k M, and k is more than 0 and less than or equal to 1.
In the above scheme, the touch capacitance value is a capacitance value read after the key touch screen is touched. The threshold value is the minimum value of the response generated by the key touch screen. Because the touch threshold value of the touch screen can be changed to a certain extent under a series of uncontrollable conditions of different environmental temperatures, different pressing pressures, different pressing angles, different pressing areas and the like, when the actual touch capacitance value is too small to reach the set threshold value, the touch insensitivity phenomenon can occur. The embodiment provides a control method for setting and adjusting the touch threshold value by the user aiming at the phenomenon, and the problem of insensitivity of the key due to different reasons or the situation that the newly set threshold value is still insensitivity due to excessive abnormal values in the setting process is solved more accurately in a mode of eliminating abnormal capacitance values.
Further optionally, in step S4, the touch capacitance values Rx of the X key touches are sorted according to the magnitude order, the average value m is calculated after deleting the first a data in sequence and the first b data in reverse sequence,
in this embodiment, a and b may be any data smaller than X. Preferably, the first and second liquid crystal materials are,
preferably, the sorted X touch capacitance values are divided into n equal parts, where a-b-X/n. The touch capacitance values of the X keys can be arranged in the order from large to small or from small to large. For example, X number of touches will be ordered in order from small to largeAnd respectively removing the front X/5 minimum value and the rear X/5 maximum value from the capacitance value to calculate the average value of the residual values. In order to segment the data, the most effective touch capacitance interval in the key touch process is taken as much as possible (in this example, the data of the middle 3/5, because the data intervals of the front 1/5 and the back 1/5 are not as high as the average value, and may cause deviation of the ideal average value if introduced), and the interval can be adjusted according to design requirements.
Further optionally, in step S3, the determining whether there is abnormal data in the X times of data is to compare the touch capacitance values during the X times of pressing with the average value m respectively to determine whether there is abnormal data.
Further optionally, the data is normal data when the difference between the capacitance value touched by the key and the average value m is within a preset difference range, and is abnormal data otherwise. The anomaly data here are: and the difference interval between the data and the average value is large, so that the data can not meet the requirements of users. Preferably, the data is normal data when the difference between the capacitance value of the key touch and the average value m is within a preset difference range, and is abnormal data otherwise. The preset difference value can be adjusted according to design requirements. For example, data differing from the average by an interval of more than 10 is considered abnormal data.
Further alternatively, in step S3, the X-time touch capacitance values are compared with the average value one by one/at the same time to determine whether there is abnormal data. If the abnormal data exist, deleting the screened abnormal data one by one until all the abnormal data are deleted, and returning to S1; or, all abnormal data are screened out and deleted uniformly, and then the step returns to S1.
Further optionally, step S1 further includes:
and judging whether the user performs key touch within the effective touch time t, if so, recording a touch capacitance value during each key touch, and if not, exiting the touch threshold value adjusting process. The effective touch time t needs to satisfy: the minimum interval detection time T1 is less than or equal to T and less than or equal to the maximum interval detection time T2. Wherein the minimum interval detection time T1: the minimum time interval for the user to press the touch key twice in succession. Maximum interval detection time T2: the maximum time interval for which the user presses the touch key twice consecutively. Effective touch time t: an active touch time intermediate the minimum interval detection time T1 and the maximum interval detection time T2.
Further optionally, in step S4, 0 < k < 1. In order to ensure the touch sensitivity of the keys, the set threshold value is reduced to a certain degree so as to ensure the touch response rate. If the threshold value is set to 100% as it is, there is a possibility that a user will experience a bad experience due to no response when the user touches an irregularity, and thus the threshold value is set to be lowered to some extent. Preferably 75% of the average is set as the new threshold.
Further optionally, performing a key touch adjustment process by entering a key touch threshold adjustment mode; before performing step S1, the user enters the key touch threshold adjustment mode by simultaneously pressing the set combination key or long pressing a specific key. Therefore, the user can adjust the key touch threshold value according to the self requirement, so that the adjustment of the key touch threshold value is more flexible.
Further optionally, after the step S4, step S5 is further executed, whether the touch capacitance threshold M is saved is determined according to the user instruction, and if the user instruction for saving the touch capacitance threshold M is received, the touch capacitance threshold M is set as the final touch threshold, and the key touch threshold adjustment process is exited; otherwise, return to S1. If the user is not satisfied with the adjusted key touch threshold, the adjustment of the key touch threshold can be performed again until the requirement of the user is met.
The following is a specific implementation of the adjustment of the key touch threshold in this embodiment, and a flowchart thereof is shown in fig. 1:
1. when the phenomenon of button insensitivity occurs, a user simultaneously presses a set combination key or presses a specific button for a long time to enter a threshold setting mode;
2. the program confirms whether to enter a threshold setting mode or not by reading the pressing condition of the combined key or the touch time of the specific key, and enters a threshold adjusting mode if the combined key is effectively pressed or the touch time of the specific key meets the condition of entering the threshold adjusting mode. And if the threshold adjustment mode is not satisfied, not entering the threshold adjustment mode.
3. And after entering a threshold value adjusting mode, timing is started, whether a user touches a key within the effective touch time t is judged, if the key is effectively operated, the touch capacitance value of the time is recorded, and if the touch capacitance value of the user is not read within the effective touch time t, the user is defaulted not to set the threshold value, and the threshold value setting mode is exited.
4. And recording the touch capacitance value, counting the touch times of the user, judging whether the touch times of the recorded capacitance value meets a specified time X, if so, sorting the touch key values of the user for X times, and if not, continuously detecting the touch threshold of the user.
5. And comparing the average value with the X times of data, if abnormal data exist, removing all the abnormal data, and supplementing and acquiring the touch threshold. And if not, displaying and prompting the average value.
If the user confirms to store the average value, setting the average value as a new threshold value and exiting the threshold value setting mode, and if the user does not store the data, clearing the data of X times and entering the threshold value setting mode again.
Example 2
The invention also provides a touch key display screen which adopts the method for adjusting the key touch threshold value in the embodiment 1.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (13)
1. A method for adjusting a key touch threshold is characterized in that the method comprises the following steps in the key touch threshold adjusting process:
s1, recording the capacitance Rn of each key touch and counting the number of times sigma n of the key touch;
s2, judging whether the key touch frequency sigma n reaches the set frequency X, and if so, entering S3; if the set number of times X is not reached, returning to S1;
s3, judging whether abnormal data exist in the X times of data; if abnormal data exist, deleting the abnormal data, returning to S1 to obtain the capacitance value again to complement the touch capacitance value for X times until no abnormal data exist, and entering S4;
s4, calculating an average value m, m ═ f (Σ) of the capacitance values of the X key touchesRXAnd X), calculating a touch capacitance value threshold value M according to the average value M, wherein the M is k M, and k is more than 0 and less than or equal to 1.
2. The method for adjusting key touch threshold according to claim 1, wherein in step S4, the touch capacitance Rx of X key touches are sorted in order of magnitude, the average value is calculated after deleting the first a data in order and the first b data in reverse order
3. The method for adjusting key touch threshold according to claim 2,
4. the method for adjusting key touch thresholds according to claim 3, wherein the sorted X touch capacitance values are divided into n equal parts, where a-b-X/n.
5. The method for adjusting key touch threshold according to any one of claims 1 to 4, wherein in step S3, the step of determining whether there is abnormal data in the X times of data is performed by comparing the touch capacitance values during the X times of key pressing with the average value m respectively to determine whether there is abnormal data.
6. The method for adjusting key touch threshold according to claim 5, wherein the data is normal data when the difference between the capacitance value of the key touch and the average value m is within a preset difference range, and is abnormal data otherwise.
7. The method for adjusting key touch thresholds according to claim 6, wherein in step S3, if there is abnormal data, the screened abnormal data are deleted one by one until all abnormal data are deleted and then the process returns to S1; or, all abnormal data are screened out and deleted uniformly, and then the step returns to S1.
8. The method for adjusting key touch thresholds according to claim 1, wherein step S1 further includes:
and judging whether the user performs key touch within the effective touch time t, if so, recording a touch capacitance value during each key touch, and if not, exiting the touch threshold value adjusting process.
9. The method for adjusting key touch threshold according to claim 8, wherein the effective touch time t is satisfied: the minimum interval detection time T1 is less than or equal to T and less than or equal to the maximum interval detection time T2.
10. The method for adjusting key touch thresholds according to claim 1, wherein 0 < k < 1 in step S4.
11. The method for adjusting key touch thresholds according to claim 1, characterized in that the key touch adjustment process is performed by entering a key touch threshold adjustment mode;
before performing step S1, the user enters the key touch threshold adjustment mode by simultaneously pressing the set combination key or long pressing a specific key.
12. The method for adjusting key touch threshold according to claim 1, wherein step S5 is executed after step S4, and the method determines whether to save the touch capacitance threshold M according to the user instruction, and if the user instruction for saving the touch capacitance threshold M is received, the touch capacitance threshold M is set as the final touch threshold, and the key touch threshold adjustment process is exited; otherwise, return to S1.
13. A touch key display screen, characterized in that it employs the method of adjusting the key touch threshold according to any one of claims 1 to 12.
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| CN112298099A (en) * | 2019-07-31 | 2021-02-02 | 爱信精机株式会社 | Vehicle operation detection device and opening/closing body control device |
| CN113037268A (en) * | 2021-03-22 | 2021-06-25 | 珠海格力电器股份有限公司 | Method and device for adjusting key touch threshold |
| CN113819616A (en) * | 2021-09-14 | 2021-12-21 | 青岛海尔空调器有限总公司 | Method and device for self-cleaning of air conditioner, air conditioner and server |
| CN113865753A (en) * | 2021-08-27 | 2021-12-31 | 惠州市德赛西威汽车电子股份有限公司 | Vehicle-mounted touch steering wheel pressure detection method based on EOL consistency calibration |
| CN117827035A (en) * | 2024-03-05 | 2024-04-05 | 江苏锦花电子股份有限公司 | Touch equipment monitoring system and method based on artificial intelligence |
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| CN112298099A (en) * | 2019-07-31 | 2021-02-02 | 爱信精机株式会社 | Vehicle operation detection device and opening/closing body control device |
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| CN117827035A (en) * | 2024-03-05 | 2024-04-05 | 江苏锦花电子股份有限公司 | Touch equipment monitoring system and method based on artificial intelligence |
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