CN101639743B - Touch detection method - Google Patents

Abstract

The invention discloses a touch-control detection method which comprises the following steps: detecting a plurality of sensing points and taking at least one sensing point with energy being larger than a preset critical value as a first signal, and taking sensing points with energy being smaller than the preset critical value and with the sensing point positions being next to the sensing point of the at least one first signal as second signals; and carrying out weighted average for the energies of the at least one first signal and the second signals and taking the result of the weighted average as a first dimension coordinate of a touch-control point, wherein the weights of the energies of the at least one first signal and the second signals are correlated with the sensing points of the at least one first signal and the second signals.

Description

Touch detection method

technical field

The present invention relates to the field of touch detection, and in particular to a touch detection method, which outputs position coordinates of touched points with considerable accuracy.

Background technique

Touch panels have been widely integrated into various electronic products as input devices. Users only need to slide or touch objects (such as fingers or stylus) on the panel to make the cursor move relative to each other. Or move with absolute coordinates, you can complete various inputs including text writing, scrolling windows and virtual buttons. Among them, the capacitive touch panel is a kind of touch panel that can move a finger on a smooth panel to control the movement of the cursor. When the finger touches the panel, the first sensing direction and the second sensing direction of the touch point The magnitude of the energy in the direction will change. By detecting the magnitude of the energy, it can be judged whether the object touches the capacitive touch panel and the position coordinates of the touched point can be calculated. Because the thickness of the capacitive touch panel is very thin, it can be designed in ultra-thin notebook computers, keyboards, digital players or other electronic devices, and the capacitive touch panel is not mechanically designed, so it is very easy to maintain. Therefore, it is widely used.

At present, various touch detection methods suitable for single-touch and multi-touch have been proposed. However, the accuracy of the position coordinates of the touched points output by these touch detection methods is different and it is difficult to satisfy users. There is an ever-increasing demand for high touch detection accuracy, so it is necessary to continuously improve the touch detection method.

Contents of the invention

One of the objectives of the present invention is to provide a touch detection method, which outputs the coordinates of the touched point with considerable accuracy.

A touch detection method proposed by an embodiment of the present invention includes the steps of: detecting a plurality of first sensing points, and taking at least one of the first sensing points whose energy is greater than a first preset critical value as the first A signal whose energy is less than a first preset critical value and whose first sensing point position is continuous with the first sensing point position of the at least one first signal is a second signal; and for this at least one first sensing point position The energy of the signal and these second signals is weighted averaged, and the result obtained after the weighted average is used as the first dimension coordinate of the touched point, wherein the weight of the at least one first signal and the energy of these second signals is related to The first sensing point where the at least one first signal and the second signals are located.

In an embodiment of the present invention, the energy weights of the at least one first signal and the plurality of second signals are in accordance with the sequence of the positions of the first sensing points where the at least one first signal and the second signals are located. increment or decrement.

In an embodiment of the present invention, the positions of the above-mentioned first sensing points where the plurality of second signals are located are respectively arranged on two sides of the position of the first sensing point where the at least one first signal is located. Further, among the first sensing point positions where the second signals are located, the number of sides located at the first sensing point position where the at least one first signal is located is the same as the number of sides located at the first sensing point position where the at least one first signal is located. The number on the other side of the sensing point position is equal.

In an embodiment of the present invention, the above-mentioned touch detection method further includes the step of: detecting a plurality of second sensing points, and taking at least one of the second sensing points whose energy is greater than a second preset threshold is the third signal, the energy is less than the second preset critical value and the second sensing point position where it is located is continuous with the second sensing point position where the at least one third signal is located is the fourth signal; and for this at least one The third signal and the energy of these fourth signals are weighted averaged, and the result obtained after the weighted average is used as the second dimension coordinates of the touched point, wherein the at least one third signal is related to the weight of the energy of these fourth signals Here, at least one third signal and the second sensing point where the fourth signals are located.

In an embodiment of the present invention, the energy weights of the above-mentioned at least one third signal and the plurality of fourth signals are in accordance with the sequence of the positions of the at least one third signal and the second sensing points where the fourth signals are located. increment or decrement.

In an embodiment of the present invention, the positions of the second sensing points where the above-mentioned plurality of fourth signals are located are respectively arranged on two sides of the position of the second sensing point where the at least one third signal is located. Further, among the second sensing point positions where these fourth signals are located, the number of sides located at the second sensing point position where the at least one third signal is located is the same as the number of sides located at the second sensing point position where the at least one third signal is located. The number on the other side of the sensing point position is equal.

A touch detection method proposed by yet another embodiment of the present invention includes the steps of: detecting a plurality of first sensing points, and finding a plurality of first sensing points whose energy on these first sensing points is greater than a first preset critical value A signal; dividing the first signals into multiple first groups according to the rule that the positions of the first sensing points in the first signals are consecutive and classified into the same group instead of consecutive ones into different groups; and performing weighted average on each first group and the energy of a plurality of second signals corresponding to the first group and having energy less than the first preset critical value on the first sensing points, and performing the weighted average The obtained result is used as the first dimension coordinate of one of the touched points, wherein the position of the first sensing point of each first group and the position of the plurality of second signals corresponding to the first group are The positions of the first sensing points are consecutive, and the energy weights of each first group and a plurality of second signals corresponding to the first group are related to the positions of the first group and the second signals. The position of the first sensing point.

In an embodiment of the present invention, each of the above-mentioned first groups and the energy weights of the plurality of second signals corresponding to the first group are weighted according to the first group and the first group where the second signals are located. The sequence of the positions of a sensing point increases or decreases sequentially.

In an embodiment of the present invention, the positions of the above-mentioned first sensing points where the plurality of second signals corresponding to one of the first groups are located are set separately from the positions of the first sensing points where the first group is located on both sides. Further, among the first sensing point positions where the second signals corresponding to one of the first groups are located, the number of sides of the first sensing point position where the first group is located is equal to The numbers on the other side of the first sensing point where the first group is located are equal.

In an embodiment of the present invention, the above-mentioned touch detection method further includes the step of: detecting a plurality of second sensing points, and finding a plurality of the second sensing points whose energy is greater than a second preset threshold. The third signal; the third signals are divided into multiple second groups according to the rule that the second sensing point positions in the third signals are continuous and classified into the same group instead of continuous ones into different groups. and performing weighted average on each second group and the energy of a plurality of fourth signals corresponding to this second group and having energy less than a second preset critical value on these second sensing points, and performing the weighted average The obtained result is used as the second dimension coordinate of one of the above-mentioned multiple touched points, wherein the position of the second sensing point where each second group is located and the plurality of fourth sensing points corresponding to the second group The positions of the second sensing points where the signals are located are continuous, and the energy weights of each second group and the fourth signals corresponding to the second group are related to the second group and the energy weights of the fourth signals. The position of the second sensing point.

In an embodiment of the present invention, each of the above-mentioned second groups and the energy weights of the plurality of fourth signals corresponding to the second group are based on the weights of the energy of the second group and the fourth signals where the fourth signals are located. The sequence of the positions of the two sensing points increases or decreases successively.

In an embodiment of the present invention, the positions of the above-mentioned second sensing points where the plurality of fourth signals corresponding to one of the second groups are located are set separately from the second sensing points where the second group is located. both sides of the position. Further, in the second sensing point positions where the fourth signals corresponding to one of the second groups are located, the number of sides of the second sensing point positions where the second group is located is the same as the number of positions located on the second sensing point where the second group is located The number on the other side of the second sensing point position where the second group is located is equal.

A touch detection method proposed by another embodiment of the present invention includes the steps of: detecting a plurality of first sensing points, and acquiring a plurality of first signal groups on these first sensing points, wherein each first The signal group includes at least one first signal whose energy is greater than a first preset critical value and a plurality of second signals whose energy is smaller than the first preset critical value, and the positions of the first sensing points where these second signals are located are at least one The positions of the first sensing points where the first signals are located are consecutive; and performing a weighted average on the energy of the at least one first signal and the energy of these second signals in each first signal group, and the result obtained after the weighted average As the first dimensional coordinate of one of the plurality of touched points, wherein the weight of the energy of the at least one first signal and the second signals in each first signal group is related to the at least one first signal and the energy of the second signals The positions of the first sensing points where the second signals are located. Further, when the number of the at least one first signal is multiple, the positions of the first sensing points where these first signals are located are consecutive to each other.

In an embodiment of the present invention, the energy weights of the at least one first signal and the plurality of second signals in each first signal group are weighted according to the at least one first signal in the first signal group. The sequence of the signals and the positions of the first sensing points where the second signals are located increases or decreases sequentially.

In an embodiment of the present invention, the above-mentioned touch detection method further includes the step of: detecting a plurality of second sensing points, and acquiring a plurality of second signal groups on these second sensing points, wherein each first The second signal group includes at least one third signal with energy greater than a second preset critical value and a plurality of fourth signals with energy smaller than the second preset critical value, and the positions of the second sensing points where these fourth signals are located are at least the same as the second sensing point. The position of the second sensing point where a third signal is located is continuous; and the energy of the at least one third signal in each second signal group and the energy of these fourth signals are weighted average, and the weighted average is obtained The result is the second-dimensional coordinate of one of the plurality of touched points, wherein the energy weights of the at least one third signal and the fourth signals in each second signal group are related to the at least one third signal and the second sensing point where the fourth signals are located. Further, when the number of the at least one third signal is multiple, the positions of the second sensing points where these third signals are located are consecutive to each other.

In an embodiment of the present invention, the energy weights of the at least one third signal and the plurality of fourth signals in each second signal group are weighted according to the at least one third signal in the second signal group. The sequence of the signals and the positions of the second sensing points where the fourth signals are located increases or decreases sequentially.

The embodiment of the present invention pre-sets an appropriate critical value. When a signal is detected whose energy exceeds the critical value, such signal, together with the position of the sensing point where the energy is lower than the critical value and where it is located, is compared with such signal The successive signals of the sensing points are weighted to calculate the coordinates of a single touched point, so the accuracy is quite high. The embodiment of the present invention can not only calculate the coordinates of a single point, but also support the calculation of the coordinates of two or more points, and the embodiment of the present invention uses the method of adding weight to the group to calculate the coordinates of two or more points, Therefore, it is suitable for multi-touch detection.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

Description of drawings

FIG. 1 shows the energy distribution of multiple sensing points in a single-point touch situation related to a touch detection method proposed by an embodiment of the present invention;

FIG. 2 shows the energy distribution of multiple sensing points in a multi-touch situation related to the touch detection method proposed by the embodiment of the present invention.

Among them, reference signs

101, 103, 201, 203: preset threshold

S _A , S _B , S _C , S _D , S _E , S _F , S _G , _SH , S _I : energy on the sensing point in the X sensing direction

P _A , P _B , P _C , P _D , P _E , _PF , _PG , _PH , P _I : the position of the sensing point in the X sensing direction

S _a , S _b , S _c , S _b , _Se , S _f , S _g , _Sh , S _i : the energy on the sensing point in the Y sensing direction

P _a , P _b , P _c , P _d , P _e , P _f , P _g , P _h , P _i : sensing point positions in the Y sensing direction

21, 22, 23, 24: group

Detailed ways

Referring to FIG. 1 , it shows the energy distribution on multiple sensing points in a single-point touch situation related to a touch detection method proposed by an embodiment of the present invention. In Figure 1, _PA , P _B , _PC and _PD are the positions of the A~D sensing points in the X sensing direction, which correspond to the A~D sensing points in the X sensing direction respectively. Channel (Channel), P _A , P _B , P _C and P _D are sequential positions, and S _A , S _B , S _C and S _D are the A~D sensing points in the X sensing direction on the energy. Similarly, P _a , P _b , P _c and P _d are respectively the positions of the ad-th sensing points in the Y sensing direction, which respectively correspond to the a-d-th sensing channels in the Y sensing direction , P _a , P _b , P _c and P _d are consecutive positions in sequence, and Sa _, S _b , S _c and S _d are the energies of the ad-th sensing points in the Y sensing direction, respectively.

As shown in FIG. 1 , in the X sensing direction, the energies S _B and S _C of the positions P _B and P _C both exceed the preset critical value 101 as the first signal, and the energy in the X sensing direction where the first signal is located The sensing point positions P _B and P _C are consecutive to each other. When calculating the X coordinate of the touched point, P _B and the energy S _A and _SD of the positions of PA and _PD next to PC are used for weight calculation. _{The energy S A and S of} the positions of PA and _PD are _D are all lower than the preset threshold value 101 as the second signal. Here, the first signal and the second signal corresponding to the energies S _A , S _B , S _C and S _D constitute a signal group, and the X coordinate of the touched point satisfies the formula (1.1): (S _A × P _A +S _B ×P _B +S _C ×P _C +S _D ×P _D )/(S _A +S _B +S _C +S _D ). From the formula (1.1), it can be known that the weights of the energy S _B , S _C and _SA , _SD of the first signal and the second signal are related to the sensing in the X sensing direction where the first signal and the second signal are located. point positions P _A , P _B , _PC and _PD , and in the order of the sensing point positions _PA , P _B , _PC and _PD in the X sensing direction where the first signal and the second signal are located Incremental or decremental, that is, the values of PA, _PB , _PC and _PD are _sequentially incremented or decremented. On the other hand, the sensing point positions PA _{and PD} in the X sensing direction where the second signal is located are located on both sides of the sensing point positions P _B and _PC in the X sensing direction where the first signal is located and There are equal numbers on both sides.

Please refer to FIG. 1 again. In the Y sensing direction, the energies S _b and S _c at the positions of P _b and P _c both exceed the preset critical value 103 as the first signal, and the energy in the Y sensing direction where the first signal is located The sensing point positions P _b and P _c are consecutive to each other. When calculating the Y coordinate of the touched point, P _b and the energy S a and S d of the positions of P _a and P _d next to P _c are used for weight calculation. The energy S _a and _S of the positions of P _a and _{P d d} are all lower than the preset threshold value 103 as the second signal. Here, the first signal and the second signal corresponding to the energies S _a , S _b , S _c and S _d constitute a signal group, and the Y coordinate of the touched point satisfies the formula (1.3): (S _a × P _a +S _b ×P _b +S _c ×P _c +S _d ×P _d )/(S _a +S _b +S _c +S _d ). It can be known from formula (1.3) that the weights of the energy S _b , S _c and S _a , S _d of the first signal and the second signal are related to the sensing in the Y sensing direction where the first signal and the second signal are located. point positions P _a , P _b , P _c and P _d , and in the order of the sensing point positions P _a , P _b , P _c and P _d in the Y sensing direction where the first signal and the second signal are located increasing or decreasing, that is, the values of P _a , P _b , P _c and P _d are increasing or decreasing in sequence. On the other hand, the sensing point positions P _a and P _d in the Y sensing direction where the second signal is located are located on both sides of the sensing point positions P _b and P _c in the Y sensing direction where the first signal is located and There are equal numbers on both sides.

So far, the two-dimensional coordinates of a single touched point can be obtained, that is, the X coordinate and the Y coordinate in this embodiment.

Referring to FIG. 2, it depicts a multi-point (two points shown in FIG. 2 are only for example and not intended to limit the present invention) touch situations related to the touch detection method proposed by the embodiment of the present invention. Energy distribution at the sensing point. In Fig. 2, _PA , P _B , _PC , _PD , _PE , _PF , _PG , _PH and P _I are the positions of the A~I sensing points in the X sensing direction respectively, and the Corresponding to the A~I sensing channels in the X sensing direction, _PA , P _B , PC _C , _PD , _PE , _PF , _PG , _PH and _PI are successive positions, and S _A , S _B , S _C , _SD , S _E , S _F , S _G , _SH and S _I are the energies of the A-I th sensing points in the X sensing direction. Similarly, P _a , P _b , P _c , P _d , P _e , P _f , P _g , P _h and P _i are respectively the positions of the a~i-th sensing points in the Y sensing direction, which correspond to The a~i-th sensing channels in the Y sensing direction, P _a , P _b , P _c , P _d , P _e , P _f , P _g , P _h and P _i are successive positions, S _a , S _b , S _c , S _d , _Se , S _f , S _g , _Sh and S _i are the energies of the a~i-th sensing points in the Y sensing direction.

As shown in FIG. 2 , in the X sensing direction, the energies S _B , S _C and S _G of the positions of P _B , _PC and _PG all exceed the preset critical value 201 as the first signal. Since P _B and P The position of _C is continuous and the two are discontinuous with _PG , so the first signals corresponding to the energy S _B and S _C are classified into the same group 21, while the first signals corresponding to the energy S _G are classified into another group Group 23. _When using group 21 to calculate the X coordinate of the touched point, P _B and the energy S _{A and SD} of the positions of PA and _PD next to PC are used for weight calculation, and the energy of the positions of _PA and _PD S _A , S _D are both lower than the preset critical value 201 as the second signal; here, the first signal and the second signal corresponding to the energy S _A , S _B , S _C and _SD constitute a signal group, The X coordinate of the touched point satisfies the formula (2.1): (S _A ×P _A +S _B ×P _B +S _C ×P _C +S _D ×P _D )/(S _A +S _B +S _C + _SD ). It can be known from formula (2.1) that the weights of the energy S _B , S _C and SA , _SD of the first signal and the _second signal are related to the sensing in the X sensing direction where the first signal and the second signal are located. point positions P _A , P _B , _PC and _PD , and in the order of the sensing point positions _PA , P _B , _PC and _PD in the X sensing direction where the first signal and the second signal are located Incremental or decremental, that is, the values of PA, _PB , _PC and _PD are _sequentially incremented or decremented. On the other hand, the sensing point positions PA _{and PD} in the X sensing direction where the second signal is located are located on both sides of the sensing point positions P _B and _PC in the X sensing direction where the first signal is located and There are equal numbers on both sides.

Furthermore, when using the group 23 to calculate the X coordinate of the touched point, the energy S _F and S _H of the PF and PH positions next to _PG are used for weight _calculation together, and the energy of the _PF and _{PH positions} Both S _F and S _H are lower than the preset critical value as the second signal; here, the first signal and the second signal corresponding to the energy S _F , S _G and S _H constitute another signal group, and are The X coordinate of the touch point satisfies the formula (2.3): (S _F ×P _F +S _G ×P _G +S _H ×P _H )/(S _F +S _G +S _H ). From the formula (2.3), it can be known that the weights of the energy S _F , S _G and _SH of the first signal and the second signal are related to the sensing point position P in the X sensing direction where the first signal and the second signal are located _F , _PG and _PH , and are sequentially increased or decreased according to the order of the sensing point positions _PF , _PG and _PH in the X sensing direction where the first signal and the second signal are located, that is, _PF , The values of _PG and _PH are sequentially increased or decreased. On the other hand, the sensing point positions _PF and _PH in the X sensing direction where the second signal is located are respectively set on both sides of the sensing point position _PG in the X sensing direction where the first signal is located, and on both sides The numbers are equal. It can be understood that in this embodiment, the energy S _E and S _I and the corresponding sensing point positions PE _and P _I in the X sensing direction can also be included in the formula (2.3) as the calculation of the touched point In other words, in the X sensing direction, the number of second signals in the same signal group can be reasonably set according to actual needs.

Please refer to FIG. 2 again. In the Y sensing direction, the energies S _b , S _f , and S _g at the positions of P _b , P _f , and P _g all exceed the preset critical value 203 as the first signal. Since P _f and P The positions where _g is continuous and both are discontinuous with P _b , so the first signals corresponding to energy S _f and S _g are classified into the same group 24, while the first signals corresponding to energy S _b are classified into another group Group 22. When using the group 22 to calculate the Y coordinate of the touched point, the energies S a and S c of the positions P _a and P _c next to P _b are used for weight calculation together, and the energies S _{a and S a of} the positions of P a and P _c S _c are all lower than the preset critical value as the second signal; here, the first signal and the second signal corresponding to the energy S _a , S _b and S _c form a signal group, and the touched point The Y coordinate satisfies the formula (2.2): (S _a ×P _a +S _b ×P _b +S _c ×P _c )/(S _a +S _b +S _c ). It can be known from formula (2.2) that the weights of the energy S _a , S _b and S _c of the first signal and the second signal are related to the sensing point position P in the Y sensing direction where the first signal and the second signal are located _a , P _b and P _c , and increase or decrease sequentially according to the order of the sensing point positions Pa _, P _b and P _c in the Y sensing direction where the first signal and the second signal are located, that is, _Pa , The values of P _b and P _c are sequentially increased or decreased. On the other hand, the sensing point positions P _a and P _c in the Y sensing direction where the second signal is located are respectively set on both sides of the sensing point position P _b in the Y sensing direction where the first signal is located and The numbers are equal.

Furthermore, when using the group 24 to calculate the Y coordinate of the touched point, P _f is used together with the energy S _e and Sh of the positions of P _e and _{P h next} to P _g for weight calculation, and P _e and _Ph The energy _Se and _Sh of the position are both lower than the preset critical value 203 as the second signal; here, the first signal and the second signal corresponding to the energy _Se , S _f , S _g and _Sh constitute another signal group, and the Y coordinate of the touched point satisfies the formula (2.4): (S _e ×P _e +S _f ×P _f +S _g ×P _g +S _h ×P _h )/(S _e +S _f +S _g +S _h ). It can be known from formula (2.4) that the weights of the energy S _f , S _g and _Se , Sh of the first signal and the second signal are related to the sensing points in the Y sensing direction where the first signal and the second signal are located Positions P _e , P _f , P _g and P _h , and are sequentially incremented according to the order of the sensing point positions P _e , P _f , P _g and _Ph in the Y sensing direction where the first signal and the second signal are located or decrease, that is, the values of P _e , P _f , P _g and Ph _h increase or decrease in sequence. On the other hand, the sensing point positions P _e and _Ph in the Y sensing direction where the second signal is located are located on both sides of the sensing point positions P _f and P _g in the Y sensing direction where the first signal is located and There are equal numbers on both sides. It can be understood that, in this embodiment, the energies S _d and S _i and the corresponding sensing point positions P _d and _Pi in the Y sensing direction can also be included in the formula (2.4) as the calculation of the touched point In other words, in the Y sensing direction, the number of second signals in the same signal group can be reasonably set according to actual needs.

So far, the two-dimensional coordinates of the positions of the touched points can be obtained, that is, the multiple X coordinates and the multiple Y coordinates in this embodiment.

To sum up, the foregoing embodiments of the present invention pre-set a suitable threshold value. When a signal is detected whose energy exceeds the threshold value, such signal, together with the sensor whose energy is lower than the threshold value and is located, will be detected. The signal whose point position is continuous with the sensing point where this type of signal is located uses weights to calculate the coordinates of a single touched point, so it has considerable accuracy. The embodiment of the present invention can not only calculate the coordinates of a single point, but also support the calculation of the coordinates of two or more points, and the embodiment of the present invention uses the method of adding weight to the group to calculate the coordinates of two or more points, Therefore, it is suitable for multi-touch detection. .

In addition, those skilled in the art can make appropriate changes to the touch detection method proposed in the embodiment of the present invention, for example, in the same signal group, the sensing point where the second signal is located is on both sides of the sensing point where the first signal is located unequal numbers, and/or change the number of second signals in the same signal group, etc.

Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding Changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (19)

1. A touch detection method, characterized in that, comprising steps: Detecting a plurality of first sensing points, and taking at least one of the first sensing points whose energy is greater than a first preset critical value as a first signal, the energy of which is smaller than the first preset critical value and located Where the first sensing point position is continuous with the first sensing point position where the at least one first signal is located, the second signal is; and performing a weighted average on the energy of the at least one first signal and the second signal, and using the weighted average result as a first dimension coordinate of a touched point, wherein the at least one first signal and the energy of the second signal The weight of the energy of the second signal is related to the position of the first sensing point where the at least one first signal and the second signal are located; Detecting a plurality of second sensing points, and taking at least one of the second sensing points whose energy is greater than a second preset critical value as a third signal, where the energy is smaller than the second preset critical value and is located The second sensing point position is continuous with the second sensing point position where the at least one third signal is located is a fourth signal; and performing a weighted average on the energy of the at least one third signal and the fourth signal, and using the weighted average result as a second-dimensional coordinate of the touched point, wherein the at least one third signal and the energy of the fourth signal The weight of the energy of the fourth signal is related to the at least one third signal and the position of the second sensing point where the fourth signal is located. 2. The touch detection method according to claim 1, wherein the weight of the energy of the at least one first signal and the second signal is according to the weight of the energy of the at least one first signal and the second signal The sequence of the positions of the first sensing points where the signals are located increases or decreases sequentially. 3. The touch detection method according to claim 2, wherein the position of the first sensing point where the second signal is located is set separately from the position of the first sensing point where the at least one first signal is located on both sides. 4. The touch detection method according to claim 3, wherein, among the first sensing points where the second signal is located, the first sensing point where the at least one first signal is located The number on one side of the point position is equal to the number on the other side of the first sensing point position where the at least one first signal is located. 5. The touch detection method according to claim 1, wherein the weight of the energy of the at least one third signal and the fourth signal is according to the weight of the energy of the at least one third signal and the fourth signal The sequence of the positions of the second sensing points where the signals are located increases or decreases successively. 6. The touch detection method according to claim 5, wherein the position of the second sensing point where the fourth signal is located is set separately from the position of the second sensing point where the at least one third signal is located on both sides. 7 . The touch detection method according to claim 6 , wherein, in the position of the second sensing point where the fourth signal is located, the second sensing point where the at least one third signal is located is located The number on one side of the point position is equal to the number on the other side of the second sensing point position where the at least one third signal is located. 8. A touch detection method, characterized in that, comprising steps: Detecting a plurality of first sensing points, and finding a plurality of first signals whose energy on the first sensing points is greater than a first preset threshold; dividing the first signal into a plurality of first groups according to the rule that the consecutive positions of the first sensing points in the first signal are classified into the same group and the consecutive ones are not classified into different groups ;as well as performing a weighted average on each of the first group and the energy of a plurality of second signals corresponding to the first group and having energy less than the first preset critical value on the first sensing point, And the result obtained after the weighted average is used as a first dimension coordinate of one of the touched points, Wherein, the position of the first sensing point where each first group is located is continuous with the position of the first sensing point where the second signal corresponding to the first group is located, and each The weight of the energy of the first group and the second signal corresponding to the first group is related to the position of the first sensing point where the first group and the second signal are located ; Detecting a plurality of second sensing points, and finding a plurality of third signals whose energy on the second sensing points is greater than a second preset threshold; dividing the third signal into a plurality of second groups according to the rule that the positions of the second sensing points in the third signal are continuous ones and not consecutive ones are classified into different groups ;as well as performing a weighted average on each of the second group and the energy of a plurality of fourth signals corresponding to the second group and having energy less than the second preset critical value on the second sensing point, and taking the result obtained after the weighted average as a second dimension coordinate of one of the touched points, Wherein, the second sensing point where each second group is located is consecutive to the second sensing point where the fourth signal corresponding to the second group is located, and each The weight of the second group and the energy of the fourth signal corresponding to the second group is related to the second group and the position of the second sensing point where the fourth signal is located . 9. The touch detection method according to claim 8, characterized in that, each of the first group and the weight of the energy of the second signal corresponding to the first group is according to The order of the first group and the position of the first sensing point where the second signal is located increases or decreases sequentially. 10. The touch detection method according to claim 9, wherein the position of the first sensing point where the second signal corresponding to one of the first groups is located is separately set at the second A group is located on both sides of the first sensing point. 11. The touch detection method according to claim 10, characterized in that, among the first sensing point positions where the second signal corresponding to one of the first groups is located, The number on one side of the first sensing point where the first group is located is equal to the number on the other side of the first sensing point where the first group is located. 12. The touch detection method according to claim 8, wherein the weight of each second group and the energy of the fourth signal corresponding to the second group is according to The order of the second group and the position of the second sensing point where the fourth signal is located increases or decreases sequentially. 13. The touch detection method according to claim 12, wherein the position of the second sensing point where the fourth signal corresponding to one of the second groups is located is separately set in the second group. The two groups are located on both sides of the second sensing point. 14. The touch detection method according to claim 13, wherein, in the position of the second sensing point where the fourth signal corresponding to one of the second groups is located, The number on one side of the second sensing point position where the second group is located is equal to the number on the other side of the second sensing point position where the second group is located. 15. A touch detection method, characterized in that, comprising steps: Detecting a plurality of first sensing points, and obtaining a plurality of first signal groups on the first sensing points, wherein each of the first signal groups includes at least A first signal and a plurality of second signals whose energy is less than the first preset critical value, the position of the first sensing point where the second signal of each of the first signal groups is located is the same as the at least one The positions of the first sensing points where the first signals are located are consecutive; and performing a weighted average on the energy of the at least one first signal and the second signal in each of the first signal groups, and using the result of the weighted average as one of the touched points a first dimensional coordinate, wherein the weights of the energies of the at least one first signal and the second signal in each of the first signal groups are related to the at least one first signal and the second signal the position of the first sensing point; Detecting a plurality of second sensing points, and acquiring a plurality of second signal groups on the second sensing points, wherein each of the second signal groups includes at least A third signal and a plurality of fourth signals whose energy is less than the second preset critical value, the position of the second sensing point where the fourth signal of each second signal group is located is the same as the at least one The positions of the second sensing points where the third signal is located are consecutive; and Performing a weighted average on the energy of the at least one third signal and the fourth signal in each of the second signal groups, and using the result of the weighted average as the value of one of the touched points a second dimensional coordinate, wherein the weight of said energy of said at least one third signal and said fourth signal in each said second signal group is related to said at least one third signal and said fourth signal The location of the second sensing point. 16. The touch detection method according to claim 15, wherein when the number of the at least one first signal is multiple, the positions of the first sensing points where the first signals are located are consecutive to each other . 17. The touch detection method according to claim 15, wherein the weight of the energy of the at least one first signal and the energy of the second signal in each of the first signal groups is according to The order of the positions of the first sensing point where the at least one first signal and the second signal are located in the first signal group increases or decreases sequentially. 18. The touch detection method according to claim 15, wherein when the number of the at least one third signal is multiple, the positions of the second sensing points where the third signals are located are consecutive to each other . 19. The touch detection method according to claim 15, wherein the weight of the energy of the at least one third signal in each of the second signal groups and the energy of the fourth signal is according to The order of the positions of the second sensing point where the at least one third signal and the fourth signal are located in the second signal group increases or decreases sequentially.

Images