An implementation method for improving touch success rate of a touch screen

Abstract

The application discloses an implementation method for improving Touch touch success rate, comprising touch recognition, earphone software and upper computer, and the method steps are as follows: S1, calibrating the built-in Touch and intercepting defective products; S2, improving the accuracy of the built-in Touch, and the steps of S2 are as follows: S21, loading the climb thre and fall thre after production line calibration; S22, judging whether the change value of CDC is greater than the climb thre; S23, judging whether the change value of CDC is greater than the fall thre, in the application, after the hardware interrupt is triggered, the earphone software performs multi-point collection judgment, thereby reducing the misjudgment rate of single-point collection, improving the accuracy, and through the electrostatic anti-mis-touch threshold detection mode, the possibility of electrostatic mis-triggering is avoided, through the CDC collection filtering algorithm, the data jitter change is reduced, thereby greatly reducing the misrecognition rate and having the functions of Touch production line calibration and defective product interception, and the application effectively solves the problem that the contact surface of the TWS earphone in the prior art is very small and is easy to cause the Touch mis-touch problem.

Description

Technical Field

[0001] This invention relates to the field of touch technology, specifically a method for improving the success rate of touch operations. Background Technology

[0002] With the booming development of the smart wearable industry, headphones are becoming increasingly diverse and sophisticated. The China Business Industry Research Institute predicts that headphone sales will reach over 3 billion units in 2022. Enhancing user experience and building trust will be key to product success. Current headphone functions are primarily triggered by pressing buttons, a method heavily influenced by the environment and the buttons themselves, impacting user experience. Modern sensor-based headphones offer a wide range of functions, such as volume control, answering / ending calls, and switching songs. Buttons have significant limitations; each button corresponds to a fixed function. When headphones require more or need to evolve to offer more features, buttons cannot meet the demands.

[0003] Patent application CN114071302 A discloses a suspension earphone based on capacitive sensing triggering. It includes an earphone body, ear hooks, and a battery pack. The earphone body and the battery pack are located at opposite ends of the ear hooks. A capacitive sensing device is located on the skin-facing side of the earphone body, ear hooks, and / or battery pack. A main control board is located within the earphone body. The main control board includes a filtering and amplification circuit, a processor, and a Bluetooth module. The capacitive sensing device, the filtering and amplification circuit, and the processor are electrically connected in sequence. The capacitive sensing device generates a trigger signal when it comes into contact with human skin. This trigger signal is filtered and amplified by the filtering and amplification circuit before being transmitted to the processor. The processor then wakes up the Bluetooth module based on the trigger signal. This invention can accurately collect the earphone's wearing status, thereby achieving automatic wake-up and automatic sleep functions, effectively meeting the intelligent application needs of suspension earphones.

[0004] Applying Touch technology to TWS earbuds allows users to perform various functions with a simple touch. Touch technology is poised for a flourishing future in TWS earbuds. Currently, most TWS earbuds use capacitive touch, which utilizes a touch chip to monitor capacitance changes between the human body and the touch-sensitive area. However, due to the very small contact surface of TWS earbuds, traditional X and Y axis interaction methods are prone to accidental touches, leading to incorrect commands. Therefore, we propose a method to improve the success rate of Touch, thereby addressing a key pain point in our project. Summary of the Invention

[0005] The purpose of this invention is to provide a method for improving the success rate of touch input, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A method for improving the success rate of touch input, comprising touch recognition, headset software, and a host computer, characterized by the following steps:

[0008] S1: Calibrate the built-in Touch and intercept defective products;

[0009] S2: Improve the accuracy of built-in Touch.

[0010] As a further aspect of the present invention, step S2 is as follows:

[0011] S21: Load the climb thre & fall thre after production line calibration;

[0012] S22: Determine if the change in CDC is greater than the climb threshold;

[0013] S23: Determine whether the change in CDC is greater than fall thre.

[0014] As a further solution of the present invention: In S1, the initial climb threshold and fall threshold are set by the headphone software, and then the host computer obtains the CDC value of the touch area when it is empty. After obtaining the CDC value of the touch area when it is pressed, the host computer judges whether the change value of CDC meets the control threshold. If it does, the headphone software outputs the CDC value when it is empty and the CDC value when it is pressed. The headphone software calculates the new climb threshold and fall threshold and updates them to achieve production line calibration. The headphone software recalculates and outputs the new rise threshold and fall threshold. If the control threshold is not met, the defective product inspection is initiated. For Touch assembly defects, the headphone software cannot compensate, so it can only perform defective product screening.

[0015] As a further aspect of the present invention: In S21, the climb threshold and fall threshold after production line calibration are loaded, and the threshold interruption is triggered according to the CDC change. The CDC value is continuously collected, and the electrostatic anti-accidental touch threshold detection is used to avoid electrostatic accidental triggering. Then, the CDC collection filtering algorithm is used to reduce data jitter changes, thereby reducing the probability of misidentification.

[0016] As a further aspect of the present invention: in S22, by determining whether the change value of CDC is greater than climbthre, if the change value of CDC is not greater than climbthre, then continue to collect CDC values; if the change value of CDC is greater than climbthre, then identify the press and wait-to-release event.

[0017] As a further aspect of the present invention: In S23, after waiting for the release event, the CDC value is continuously collected, the electrostatic discharge prevention threshold detection is performed, the CDC collection filtering algorithm is applied, and then it is determined whether the change value of CDC is greater than fallthre. If the change value of CDC is determined not to be greater than fallthre, the CDC value is continuously collected. If the change value of CDC is determined to be greater than fallthre, the CDC value is identified and released, and the CDC collection is stopped and the next threshold interruption is waited for.

[0018] As a further aspect of the present invention, the touch recognition principle is achieved by detecting whether the relative change in capacitance before and after pressing exceeds a threshold.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. In this invention, after being triggered by a hardware interrupt, the earphone software performs multi-point data acquisition and judgment, thereby reducing the false judgment rate of single-point acquisition and improving the accuracy. Furthermore, the electrostatic discharge (ESD) anti-accidental touch threshold detection method avoids the possibility of ESD accidental triggering. By adopting the CDC acquisition filtering algorithm, the data jitter variation is reduced, thereby greatly reducing the false recognition rate. It also has the functions of touch production line calibration and defective product interception. This invention effectively solves the problem of very small contact surface of TWS earphones in the prior art, which easily causes accidental touch, and is easy to promote and use. Attached Figure Description

[0021] Figure 1 A flowchart illustrating methods to improve the success rate of touch input.

[0022] Figure 2 A schematic diagram of S2 in the implementation method to improve the success rate of Touch.

[0023] Figure 3 This diagram illustrates a method for improving Touch accuracy by incorporating a built-in Touch accuracy enhancement mechanism.

[0024] Figure 4 This diagram illustrates the methods for improving the success rate of Touch input, including calibrating the built-in Touch and intercepting defective products.

[0025] Figure 5A schematic diagram illustrating the principle of touch recognition in a method to improve the success rate of touch input. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1-5 In this embodiment of the invention, a method for improving the success rate of Touch operation includes headset software and a host computer, and the method steps are as follows:

[0028] S1: Calibrate the built-in Touch and intercept defective products;

[0029] S2: Improve the accuracy of built-in Touch.

[0030] The steps for S2 are as follows:

[0031] S21: Load the climb thre & fall thre after production line calibration;

[0032] S22: Determine if the change in CDC is greater than the climb threshold;

[0033] S23: Determine whether the change in CDC is greater than fall thre.

[0034] In step S1, the headset software initializes the climb threshold and fall threshold. Then, the host computer obtains the CDC value of the touch area when it is empty. After obtaining the CDC value of the touch area when it is pressed, the host computer judges whether the change value of the CDC meets the control threshold. If it does, it outputs the CDC value when it is empty and the CDC value when it is pressed. The headset software calculates the new climb threshold and fall threshold and updates them to achieve production line calibration. The headset software recalculates and outputs the new rise threshold and fall threshold. If the control threshold is not met, it enters the defective product inspection. For Touch assembly defects, the headset software cannot compensate, so it can only perform defective product screening.

[0035] In step S21, the climb threshold and fall threshold after production line calibration are loaded. The threshold interruption is triggered according to the CDC change, and the CDC value is continuously collected. The electrostatic discharge prevention threshold detection is used to avoid electrostatic discharge accidental triggering. Then, the CDC collection filtering algorithm is used to reduce data jitter changes, thereby reducing the probability of misidentification.

[0036] In step S22, it is determined whether the change value of CDC is greater than the climb thre. If the change value of CDC is not greater than the climb thre, the CDC value is continuously collected. If the change value of CDC is greater than the climb thre, the press and wait-to-release event is identified.

[0037] In step S23, after waiting for the release event, the CDC value is continuously collected, the electrostatic discharge prevention threshold detection is performed, the CDC collection filtering algorithm is applied, and then it is determined whether the change value of CDC is greater than the fall threshold. If the change value of CDC is not greater than the fall threshold, the CDC value is continuously collected. If the change value of CDC is greater than the fall threshold, the release is identified and the CDC collection is stopped, waiting for the next threshold interruption.

[0038] Example 1:

[0039] Touch recognition works by detecting whether the relative change in capacitance before and after a press exceeds a threshold. A single touch recognition process (such as...) Figure 5 Where Pd2 = Pcap2 - Rcap, Pd1 = Pcap1 - Rcap, Rd2 = Rcap2 - Rcap1, Rd1 = Rcap2 - Rcap) is:

[0040] Step 1: When a finger touches the screen at time T1, the external capacitance increases. The circuit will automatically detect the increase in capacitance at this time. If the capacitance difference Pd2 and Pd1 exceed the threshold twice (configurable), it will be marked as a press at time T2.

[0041] Step 2: When the finger is lifted at time T3, the external capacitance decreases. The circuit will automatically detect the decrease in capacitance at this time. If the capacitance difference Rd2 and Rd1 exceed the threshold twice (configurable), it will be marked as lifted at time T4.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for improving the success rate of touch input, characterized in that, For TWS earphones with built-in touch control, including a touch recognition module, earphone software, and a host computer, the method includes the following steps: S1: Perform production line calibration and defective product interception on the built-in Touch of TWS earphones; S2: Improve the touch accuracy of the built-in Touch function in TWS earphones; Specifically, step S1 includes: S11: Initialize the headphone software to set the climbing threshold and the falling threshold; S12: The host computer obtains the CDC value when the Touch area is in an empty state and the CDC value when it is in a pressed state, respectively. S13: The host computer calculates the CDC change value between the pressed state and the empty state, and determines whether the CDC change value meets the preset control threshold. If satisfied, the host computer outputs the CDC value for both air and press values. The headset software calculates and updates the new climbing threshold and falling threshold based on the output values, thus completing the Touch production line calibration. If the conditions are not met, the Touch earphone is deemed to have an assembly problem, and the TWS earphone is identified as a defective product. Step S2 specifically includes: S21: The headphone software loads the rising threshold (climbthre) and falling threshold (fallthre) after production line calibration; when the CDC value changes and triggers a hardware threshold interrupt, the CDC value is continuously collected, and the electrostatic discharge prevention threshold detection and CDC collection filtering algorithm are executed sequentially. S22: Determine if the change in CDC value is greater than the ascent threshold (climbthre). If the value is greater than the specified value, it is identified as a pressed action and enters the waiting for release event state. If it is not greater than, then return the continuously collected CDC value; S23: After entering the waiting-for-release-event state, continuously collect CDC values, perform electrostatic discharge (ESD) anti-accidental touch threshold detection, and CDC collection filtering algorithm in sequence, then determine whether the CDC change value is greater than the falling threshold. If the value is greater than the threshold, it is identified as a release action, CDC data collection is stopped, and the system waits for the next hardware threshold interrupt. If it is not greater than, then return to continuously collect CDC values.

2. The method for improving the success rate of touch operation according to claim 1, characterized in that, The logic for determining the press action in touch recognition is as follows: after a finger touches the touch, the circuit detects the capacitance increment. When the capacitance difference Pd1 and Pd2 exceed the preset threshold twice in a row, it is marked as a press action.

3. The method for improving the success rate of touch touch according to claim 1, characterized in that, The logic for determining the lift-off action of touch recognition is as follows: after the finger leaves the Touch screen, the circuit detects a decrease in capacitance. When the capacitance difference Rd1 and Rd2 exceeds the preset threshold twice in a row, it is marked as a lift-off action.

Images