Method for dynamically adjusting reporting rate of touch screen

Abstract

The invention discloses a method for dynamically adjusting the reporting rate of a touch screen. The method includes the following steps: (1), setting a detection time, and acquiring a threshold value of the number of coordinate points received by an application layer within the detection time according to an initial set value of the reporting rate of a single finger on the touch screen and the maximum value of the number of fingers that the touch screen can recognize at a same time; (2), setting a set value n1 smaller than the threshold value of the number of the coordinate points received by the application layer in step (1); (3), within the detection time, recognizing the number of currently-touching fingers by a touch screen terminal; calculating the number n of the coordinate points received by the application layer within the detection time by the touch screen terminal according to the reporting rate of the single finger currently touching the touch screen; (4), comparing n1 with n, if the n1 is larger than n, lowering the reporting rate of the single finger currently touching the touch screen, and if n1 is smaller than n, increasing the reporting rate of the single finger currently touching the touch screen. By the method, the reporting rate of the touch screen can be dynamically adjusted, and touch effect of the touch screen can be guaranteed.

Description

technical field [0001] The invention relates to touch technology, in particular to a method for dynamically adjusting the reporting rate of a touch screen. Background technique [0002] The touch screen reports coordinate points to the application layer at a fixed reporting rate of 80 points per second, that is to say, when a finger slides on the touch screen, for each finger, the touch screen will report 80 points per second to the application layer Coordinate information, for useless touch coordinate point information, also reports data at 80 points per second, occupying a lot of resources of the host. If it is a multi-finger touch, for example, five fingers slide on the touch screen at the same time, then the application layer will receive about 400 touch coordinate point information per second, which will cause a great burden on the system and cause the system to run The problem of not being smooth and stuck, and even losing some touch information. [0003] The Chinese...

AI Technical Summary

Problems solved by technology

However, in this method, when multiple fingers act on the touch screen, and the touch speed of each finger (that is, the speed at which the touch point moves) is relatively fast, it is still easy to cause the application layer to receive too many coordinate points. Therefore, this method is only suitable for use when the number of touch points per unit time is small, and it is not suitable for use in the case of multi-finger fast touch

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