TW201502890A - Touchable control system and method of command positioning - Google Patents

Abstract

A touchable system is disclosed herein. The touchable system includes a display module, an input device and a control module. The display module is configured for displaying an image. The input device is configured for generating a control signal and an auxiliary signal. The auxiliary signal may include a first type command and a second type command. The control module is configured for detecting a first moving trace formed by the control signal and a second moving trace formed by the auxiliary signal on the image. The control module is further configured for performing an identifying operation, whereby performing the first type command or the second type command in accordance with the corresponding input device. A method of command positioning is disclosed herein as well.

Description

Touch system and instruction positioning method

The present invention relates to a touch system, and more particularly to a touch system having a multi-point input.

With the advancement of display and touch technology, the human interface between the electronic system and the user has been widely used in various fields. For example, mobile phones, display panels, teaching systems, and the like.

Please refer to FIG. 1A . FIG. 1A is a schematic diagram of a touch system 100 according to the prior art. As shown in FIG. 1A, the touch system 100 includes an input device 120 and an instruction column 140. The command line 140 is displayed on the display screen 160. The command line 140 has a variety of instructions, such as circle selection, clearing, zooming in, drawing, and the like. The user must first select a specific command in the command line 140 by the input device 120 to perform an operation on the display screen 160. Therefore, the touch system 100 is only suitable for a single-point input touch application.

Please refer to FIG. 1B , which illustrates a schematic diagram of another touch system 100 a according to the prior art. As shown in FIG. 1B, the touch system 100a includes an input device 120a and a display screen 160a. Input device 120a has There is a radio frequency transmitter (not shown), and the display screen 160a has a radio frequency receiver (not shown). The user generates a control command by the radio frequency transmitter on the input device 120a, and the radio frequency receiver on the display screen 160a receives the control command and performs related operations.

Please refer to FIG. 1C , and FIG. 1C is a schematic diagram showing the operation of the touch system 100 a shown in FIG. 1B . The aforementioned touch system 100a may further have a plurality of input devices 120a. However, as shown in FIG. 1C, when the plurality of input devices 160a are simultaneously operated, the RF receiver on the display screen 160a cannot recognize which input device 120a the command is generated, causing the command and the touch point to be mismatched. The problem.

Therefore, how to correctly match the position of the command and the touch point during multi-touch operation is one of the current important research and development topics, and has become an urgent target for improvement in related fields.

To solve the above problems, an aspect of the present invention provides a touch system including a display module, at least one input device, and a control module. The display module is used to display an image frame. The input device is configured to generate a control signal and an auxiliary signal, wherein the auxiliary signal can include the first type of instruction and the second type of instruction. The control module is configured to detect a first movement track formed by the control signal on the image frame and a second movement track formed by the auxiliary signal on the image frame. The control module is further configured to perform a recognition operation according to the first and second movement trajectories in the identification period, thereby executing the first type instruction or the second type instruction according to the corresponding input device.

According to an embodiment of the present invention, the control module is configured to calculate whether the coordinate regions corresponding to the first moving track and the second moving track respectively on the image frame are substantially coincident within a preset range in the identification period.

According to an embodiment of the present invention, wherein when the starting point of the first moving trajectory substantially coincides with the starting point of the second moving trajectory, and the first moving trajectory substantially coincides with the second moving trajectory within the identification period, the control The module executes the first type of instruction.

According to an embodiment of the present invention, wherein when the starting point of the second moving trajectory does not coincide with the starting point of the first moving trajectory, and the first moving trajectory substantially coincides with the second moving trajectory within the identification period, The control module executes the second type of instruction.

According to an embodiment of the invention, the foregoing display module comprises a plurality of display units, and the plurality of display units are configured as a display matrix, wherein each display unit comprises a plurality of pixels, a control signal sensor and an auxiliary signal sensing Device. A control signal sensor is used to sense the control signal. The auxiliary signal sensor is used to sense the auxiliary signal.

According to an embodiment of the invention, the foregoing control module comprises a sensing signal receiver, a calculation unit, a processing unit and a control unit. The sensing signal receiver is configured to receive the control signal and the auxiliary signal from the display module. The calculation unit is configured to calculate whether the starting point of the first moving track and the starting point of the second moving track substantially coincide. The processing unit is configured to calculate whether the coordinate regions corresponding to the first moving track and the second moving track respectively on the image frame are substantially coincident within the preset range during the identification period. The control unit is configured to execute the first type of instruction or the second type of instruction according to the processing unit.

According to an embodiment of the invention, the aforementioned input device comprises a control signal transmitter, an auxiliary signal control unit and an auxiliary signal transmitter. The control signal transmitter is used to generate a control signal. The auxiliary signal control unit is configured to generate the auxiliary signal. The auxiliary signal transmitter is configured to control the unit to transmit the auxiliary signal according to the auxiliary signal.

According to an embodiment of the present invention, wherein the first type instruction and the second type instruction respectively comprise a plurality of control commands, wherein the auxiliary signal control unit is further configured to generate an auxiliary signal having a corresponding signal strength according to the corresponding control command. .

Another aspect of the present invention provides an instruction positioning method. The command positioning method is applicable to a touch system having a plurality of input devices, wherein each input device is configured to generate a control signal and an auxiliary signal, and the command positioning method includes the following steps: detecting the first formed by the control signal on the image frame Move the track. Detecting a second movement trajectory formed by the auxiliary signal on the image frame. Providing a control module, the control module is configured to perform a recognition operation according to the first movement track and the second movement track in the identification period, thereby executing one of the first type instruction and the second type instruction according to the corresponding input device By.

In summary, the technical solution of the present invention has obvious advantages and beneficial effects compared with the prior art. With the above technical solution, considerable technological progress can be achieved, and the industrial use value is widely used. The touch system and the instruction positioning method shown in the present disclosure can be correctly matched in the touch application of multi-point input. Input device and control instructions to be executed.

100, 100a, 200, 400‧‧‧ touch system

120, 120a, 160, 240, 240a, 240b‧‧‧ input devices

160a‧‧‧display screen

220‧‧‧ display module

242‧‧‧Control signal transmitter

244‧‧‧Auxiliary Signal Control Unit

246‧‧‧Auxiliary signal transmitter

248‧‧‧External button

250, 252, 320‧‧‧ moving tracks

260‧‧‧Control Module

262‧‧‧Sensor Receiver

264‧‧‧ calculus unit

266‧‧‧Processing unit

268‧‧‧Control unit

340, 342, 360, 360a, 362, 362a‧‧‧ touch points

380‧‧‧Preset range

420‧‧‧ display unit

422‧‧ ‧ pixels

424‧‧‧Control signal sensor

426‧‧‧Auxiliary signal sensor

428‧‧‧Display matrix

430‧‧‧Reading line

500‧‧‧ method

S520, S540, S560‧‧ steps

VCTRL‧‧‧ control signal

VAUX‧‧‧Auxiliary signal

TP‧‧‧ identification cycle

D‧‧‧distance difference

The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood. The description of the drawings is as follows: FIG. 1A is a schematic diagram of a touch system 100 according to the prior art; FIG. 1B is based on FIG. The prior art shows a schematic diagram of another touch system 100a; FIG. 1C shows a schematic diagram of the operation of the touch system 100a shown in FIG. 1B; and FIG. 2A shows a schematic diagram of a touch system 200 according to an embodiment of the invention. 2B is a schematic diagram showing the operation of the touch system 200 according to an embodiment of the invention; FIG. 3A is a schematic diagram showing the operation of the touch system 200 according to an embodiment of the invention; FIG. 3B is implemented according to one embodiment of the present invention; FIG. 3C is a schematic diagram showing the operation of the touch system 200 according to an embodiment of the invention; FIG. 3D and FIG. 3E are diagrams showing the touch system according to an embodiment of the invention. FIG. 4A is a schematic diagram showing the operation of the touch system 400 according to an embodiment of the present invention; FIG. 4B and FIG. 4C are diagrams showing an operation according to an embodiment of the present invention. A schematic diagram of the device 240; and FIG. 5 illustrates a flow chart of the method locating method 500 in accordance with an embodiment of the present invention.

The embodiments are described in detail below with reference to the accompanying drawings, but the embodiments are not intended to limit the scope of the invention, and the description of structural operations is not intended to limit the order of execution thereof The structure, which produces equal devices, is within the scope of the present invention. In addition, the drawings are for illustrative purposes only and are not drawn to the original dimensions. For ease of understanding, the same elements in the following description will be denoted by the same reference numerals.

The terms "first", "second", etc., as used herein, are not intended to refer to the order or the order, and are not intended to limit the invention, only to distinguish the elements described in the same technical terms. Or just operate.

As used herein, "about", "about" or "substantially" generally means that the error or range of the index value is within about 20%, preferably within about 10%, and more preferably, It is about five percent. In the text, unless otherwise stated, the numerical values referred to are regarded as approximations, that is, the errors or ranges indicated by "about", "about" or "roughly".

In addition, the term "coupled" or "connected" as used herein may mean that two or more elements are in direct physical or electrical contact with each other, or indirectly in physical or electrical contact with each other, or Multiple components operate or act upon each other.

Referring to FIG. 2A and FIG. 2B , FIG. 2A is a schematic diagram of a touch control system 200 according to an embodiment of the invention. FIG. 2B is a schematic diagram showing the operation of the touch control system 200 according to an embodiment of the invention. As shown in FIG. 2A , the touch system 200 includes a display module 220 , an input device 240 , and a control module 260 . The display module 220 is configured to display an image frame. The input device 240 is configured to generate a control signal VCTRL and an auxiliary signal VAUX, wherein the auxiliary signal VAUX can include a first type of instruction and a second type of instruction. For the sake of clear description, the first movement trajectory 250 generated by the control signal VCTRL is equivalently separated from the second movement trajectory 252 generated by the auxiliary signal VAUX in FIG. 2B, and the two are formed in the same display mode in substantial operation. Group 220. The control module 260 is further configured to detect the first movement track 250 formed on the image frame by the control signal VCTRL and the second movement track 252 formed on the image frame by the auxiliary signal VAUX. The control module 260 performs a recognition operation according to the first movement trajectory 250 and the second movement trajectory 252 in the identification period TP, thereby executing the first type instruction or the second type instruction according to the corresponding input device 240.

The following paragraphs will present several embodiments of the touch system 200 to illustrate the above-described functions and applications, but the present invention is not limited to the embodiments listed below.

Referring to FIG. 3A, FIG. 3A is a schematic diagram showing the operation of the touch system 200 according to an embodiment of the invention. As shown in FIG. 3A, the user generates a first moving track and a second moving track on the image frame of the display module 220 by using the input device 240, wherein the first moving track has a plurality of control signals. Touch point 340 formed by VCTRL and The touch point 360 formed by the auxiliary signal VAUX. The control module 260 can detect whether the first moving track and the second moving track overlap according to the plurality of touch points 340 and the plurality of touch points 360. In this embodiment, the control module 260 detects the trajectory 320 in which the first movement trajectory and the second movement trajectory coincide in the recognition period TP. The embodiments in FIGS. 3B and 3C below assume that both the first moving trajectory and the second moving trajectory overlap each other (eg, trajectory 320).

In addition, in order to prevent the foregoing control module 260 from mistaking the environmental noise as the control signal VCTRL or the auxiliary signal VAUX, the control module 260 can be stabilized in the identification period TP by setting the determination time of the identification period TP. The control signal VCTRL or the auxiliary signal VAUX is received to execute the instruction.

For example, as shown in FIG. 3A, the recognition period TP can be set to the time of N frames, and in the first to Nth pictures, the control module 260 detects the two tracks. To overlap each other (eg, track 320), control module 260 can thereby correctly locate the corresponding input device 240 and the corresponding command type. In general, the recognition period TP can be set to the time of 8 pictures, and the received signal type can be correctly recognized. However, the present invention is not limited thereto, and those skilled in the art can set the actual application.

Referring to FIG. 3B, FIG. 3B is a schematic diagram showing the operation of the touch system 200 according to an embodiment of the invention. As shown in FIG. 3B, in this embodiment, in a case where the first moving track substantially coincides with the starting point of the second moving track (for example, the touch point 342), the control module 260 is further configured. Set to execute the aforementioned first type of instruction. The control module 260 can confirm the trajectory 320 in which the first moving trajectory and the second moving trajectory coincide by comparing whether the coordinate regions corresponding to the plurality of touch points 342a substantially overlap in the preset range 380 within the identification period TP.

For example, the first type of instruction may be a control instruction of a clear type or the like, and the user executes the clear command by using the auxiliary signal VAUX and cooperates with the control signal VCTRL to specify the target object to be cleared on the image screen.

Referring to FIG. 3C, FIG. 3C is a schematic diagram showing the operation of the touch system 200 according to an embodiment of the invention. As shown in FIG. 3C, in this embodiment, when the first moving track and the starting point of the second moving track (for example, the touch point 342 and the touch point 362) do not coincide, the control module 260 is set to execute the aforementioned second type of instruction. Similarly, the control module 260 can confirm that the first moving track and the second moving track are coincident by comparing whether the coordinate areas corresponding to the plurality of touch points 362a are substantially coincident within the preset range 380 within the identification period TP. 320.

For example, the second type of command may be a control command of a type such as a click, and the user may use the auxiliary signal VAUX to execute a click command at any time to select a target object on the image screen while using the control signal VCTRL.

Please refer to FIG. 3D and FIG. 3E . FIG. 3D and FIG. 3E are schematic diagrams showing operation of multi-point input of the touch system 200 according to an embodiment of the invention. When the touch system 200 has a plurality of input devices (for example, the input device 240a and the input device 240b) operate simultaneously, if the input device 240a is to execute an instruction, the control module 260 first determines the input device 240a. Determining whether the first movement trajectory generated by the input device 240b and the start point of the second movement trajectory substantially coincide with each other to determine the type of instruction to be executed, and further calculating the first movement trajectory and the second movement trajectory generated by the two The input device 240a and the input device 240b are identified by whether or not the identification period TP is substantially coincident.

For example, as shown in FIG. 3D, the input device 240a continuously transmits the control signal VCTRL from the first screen to the N+2th screen, and the control module 260 detects that the input device 240a is at the third position on the third screen. The auxiliary signal VAUX is started to be sent, and the touch point 360 is generated on the display module 220, and the control module 260 confirms the first and second generated by the input device 240a by comparing the coordinate areas of the plurality of touch points 360a. The movement trajectory (for example, the trajectory 320) substantially coincides and the starting points of the two are not the same, and the input device 240b does not send the auxiliary signal VAUX, so the input device 240b does not generate the second movement trajectory, and the control module 260 according to the above The second type of instruction is executed on the movement trajectory 320 generated by the input device 240a after the calculation.

Similarly, as shown in FIG. 3E, the input device 240a continuously transmits the control signal VCTRL from the first screen to the N+2th screen, and the control module 260 detects that the input device 240a is at the first time on the first screen. The auxiliary signal VAUX is sent during the screen, and the touch point 360 is generated on the display module 220, and the control module 260 confirms the first and second movements generated by the input device 240a by comparing the coordinate areas of the plurality of touch points 360a. The trajectories are substantially coincident (eg, trajectory 320) and the starting points of the two (eg, touch points 360) are substantially the same, and the input device 240b does not yet transmit the auxiliary signal VAUX, so the input device 240b does not generate the second moving trajectory. Control module 260 according to the above The first type of instruction is executed on the movement trajectory 320 generated by the input device 240a after the calculation.

As shown in FIG. 4A, FIG. 4A is a schematic diagram showing the operation of the touch system 400 according to an embodiment of the invention. As shown in FIG. 4A, the display module 220 can include an in-cell display panel. The display module 220 includes a plurality of display units 420, and the plurality of display units are disposed in a matrix on the display module. 220 (for example: display matrix 422). Each display unit 420 includes a plurality of pixels 422, a control signal sensor 424, and an auxiliary signal sensor 426. The control signal sensor 424 is configured to sense the aforementioned control signal VCTRL. The auxiliary signal sensor 426 is used to sense the auxiliary signal VAUX. The control signal sensor 424 and the auxiliary signal sensor 426 are disposed on one side of the corresponding pixel 422. In general, the control signal sensor 424 can be a photo sensor, a voltage sensor, etc., and the auxiliary signal sensor 426 can be a radio frequency signal receiver, a photo sensor, a piezoelectric sensor, Acoustic wave sensors and the like, which are familiar to those skilled in the art, can be set according to actual needs, and the invention is not limited thereto. However, control signal sensor 424 and auxiliary signal sensor 426 need to be configured to receive different types of signals to avoid causing control module 260 to misjudge the received signal type.

Furthermore, as shown in FIG. 4A, the control module 260 may further include a sensing signal receiver 262, an arithmetic unit 264, a processing unit 266, and a control unit 268 in this embodiment. The sensing signal receiver 262 is configured to receive the control signal VCTRL and the auxiliary signal VAUX from the display module 220, that is, the control signal sensor 424 and the auxiliary signal sensor 426 are electrically coupled to the read line 430, and are read via Line 430 will sense the sensed signal VCTRL with the auxiliary The help signal VAUX is transmitted to the sense signal receiver 262. The calculation unit 264 is electrically coupled to the sensing signal receiver 262. The calculation unit 264 can learn the plurality of first and second movement trajectories by using the control signal VCTRL received by the sensing signal receiver 262 and the auxiliary signal VAUX. The touch point position is corresponding to the coordinate area, and the calculation unit 264 is configured to calculate whether the starting point of the first moving track and the starting point of the second moving track substantially coincide. The processing unit 266 is electrically coupled to the calculation unit 264. After the calculation unit 264 calculates whether the starting points of the first and second movement trajectories are coincident, the processing unit 266 is configured to calculate the first movement trajectory within the identification period TP. Whether the coordinate regions corresponding to the second moving trajectory on the image screen respectively substantially overlap in a preset range (for example, the aforementioned preset range 380). The control unit 268 is then arranged to decide whether to execute the first type of instruction or the second type of instruction based on the result calculated by the processing unit 266.

In general, the foregoing control module 260 can be implemented by a programmable logic gate array (FPGA) or by using an integrated circuit chip. The invention is not limited thereto, and those skilled in the art can set it according to practical applications.

Please refer to FIG. 4B and FIG. 4C. FIG. 4B and FIG. 4C are schematic diagrams showing the input device 240 according to an embodiment of the present invention. As shown in FIG. 4B, in the touch system 200 or the touch system 400 described above, the input device 240 may include a control signal transmitter 242, an auxiliary signal control unit 244, and an auxiliary signal transmitter 246. Control signal transmitter 242 is used to generate control signals. For example, the control signal transmitter 242 can be an LED component that operates on the display module 220 by a light source generated by the LED. Alternatively, the control signal transmitter 242 can also be a stylus, and is pressed against the display module. The control signal VCTRL is generated on 220. The auxiliary signal control unit 244 is configured to generate the auxiliary signal VAUX, and the auxiliary signal transmitter 246 can transmit the auxiliary signal VAUX according to the configuration of the auxiliary signal control unit 244. For example, the auxiliary signal control unit 244 and the auxiliary signal transmitter 246 may be radio frequency signal transmitting modules. When the user wants to execute the command, the auxiliary signal control unit 244 may be operated by the external button 248, and the auxiliary signal control unit 244 generates The corresponding command signal is followed by the auxiliary signal transmitter 246 to transmit a radio frequency signal (ie, the auxiliary signal VAUX) to the display module 220.

In general, as shown in FIG. 4B, the auxiliary signal control unit 244 and the auxiliary signal transmitter 246 may be disposed inside the input device 240, and the transmitting end of the auxiliary signal transmitter 246 and the transmitting end of the control signal transmitter 242. As close as possible to the arrangement, the first movement trajectory generated by the control signal VCTRL and the second movement trajectory generated by the auxiliary signal VAUX can be overlapped as much as possible to reduce the amount of calculation of the control module 260. Alternatively, as shown in FIG. 4C, when the auxiliary signal transmitter 246 is to be disposed outside the input device 240, there is a distance difference between the transmitting end of the auxiliary signal transmitter 246 and the transmitting end of the control signal transmitter 242. d. At this time, the user can adjust the preset range 380 in the control module 260, so that the control module 260 can effectively improve the calculation accuracy in a certain amount of calculation.

Moreover, in the various embodiments described above, the first type of instructions and the second type of instructions may each include a plurality of control instructions. For example, the first type of instructions may include clearing, clipping, etc. control instructions, and the second type of instructions may include control instructions for clicking, amplifying, copying, and the like. A signal strength adjustment mechanism can be added to the external button 248 of the input device 240 as described above. The different control commands can be executed by different signal strengths, and the auxiliary signal control unit 244 generates the corresponding signal strength auxiliary signal VAUX according to different control commands, in the sensing signal receiver 262 via the control module 260. By identifying the auxiliary signal VAUX of various signal strengths, a variety of different control commands can be executed.

Another aspect of the present invention is to provide a method of command positioning. Referring to FIG. 5, FIG. 5 is a flow chart showing an instruction positioning method 500 according to an embodiment of the present invention. As shown in FIG. 5, the instruction positioning method 500 includes steps S520, S540, and S560. The command positioning method is applicable to a touch system including a plurality of input devices, wherein each input device is configured to generate a control signal VCTRL and an auxiliary signal VAUX.

In step S520, the first movement trajectory formed by the control signal VCTRL on an image frame is detected. In step S540, the second movement trajectory formed by the auxiliary signal VAUX on the aforementioned image frame is detected. In step S560, the method 500 provides a control module configured to perform a recognition operation according to the first movement trajectory and the second movement trajectory within an identification period TP, thereby executing the first type according to the corresponding input device. One of the instruction and the second type of instruction.

In step S560, the control module is further configured to calculate whether the target areas corresponding to the first moving track and the second moving track respectively on the image frame are substantially coincident within the preset range within the identification period TP.

For example, as shown in FIG. 3A, the control module can calculate that the coordinate area corresponding to the touch point 360 generated by the touch point 340 generated by the control signal VCTRL and the auxiliary signal VAUX is within the preset range 380. In the identification period TP, the control module 260 can correctly locate the corresponding input device and the corresponding instruction type.

In step S560, when the first moving track and the second moving track substantially coincide in the identification period TP, and the first moving track and the starting point of the second moving track substantially coincide, the control module may Executing the aforementioned first type of instructions. For example, as shown in FIG. 3B, when the starting points (eg, the touch points 342) are the same, and the first and second tracks are coincident within the recognition period TP, the control module executes the first type of instructions.

Furthermore, in step S560, when the first movement trajectory and the second movement trajectory substantially coincide in the recognition period TP, and the first movement trajectory and the start point of the second movement trajectory do not coincide, Next, the control module can execute the aforementioned second type of instruction. For example, as shown in FIG. 3C, when the starting point (for example, the touch point 342 and the touch point 362) are not the same, and the first and second moving tracks (eg, the track 320) are coincident, the control is performed. The module will execute the second type of instruction.

In summary, in a touch application having a plurality of input devices, the touch system and the instruction positioning method disclosed by the present invention can correctly match the input device and the control command to be executed.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and the present invention can be modified and modified without departing from the spirit and scope of the present invention. The scope is subject to the definition of the scope of the patent application attached.

220‧‧‧ display module

240‧‧‧ Input device

320‧‧‧moving track

340, 360‧‧‧ touch points

380‧‧‧Preset range

VCTRL‧‧‧ control signal

VAUX‧‧‧Auxiliary signal

TP‧‧‧ identification cycle

Claims (10)

A touch system includes: a display module for displaying an image frame; at least one input device for generating a control signal and an auxiliary signal, wherein the auxiliary signal includes a first type of command and a second type And a control module for detecting a first movement track formed by the control signal on the image frame and a second movement track formed by the auxiliary signal on the image frame, wherein the control The module is configured to perform a recognition operation according to the first movement trajectory and the second movement trajectory in an identification period, thereby performing one of the first type instruction and the second type instruction according to the corresponding input device. The touch control system of claim 1, wherein the control module is configured to calculate, in the identification period, the first moving track and the second moving track respectively on a target area corresponding to the image frame. Whether the range is roughly coincident. The touch system of claim 2, wherein a starting point of the first moving track substantially coincides with a starting point of the second moving track, and the first moving track and the second moving track are in the identification The control module executes the first type of command when the cycles substantially coincide. The touch system of claim 2, wherein a starting point of the second moving track does not coincide with a starting point of the first moving track, and the first moving track and the second moving track are The control module executes the second type of command when the identification period substantially coincides. The touch control system of claim 1, wherein the control module comprises: a sensing signal receiver for receiving the control signal and the auxiliary signal from the display module; and an arithmetic unit for calculating the Whether a starting point of a moving track substantially coincides with a starting point of the second moving track; a processing unit configured to calculate the image frame according to the first moving track and the second moving track respectively in the identifying period Whether the corresponding one of the marked areas substantially coincides within a predetermined range; and a control unit for executing the first type of instructions or the second type of instructions according to the processing unit. The touch system of claim 1, wherein the input device comprises: a control signal transmitter for generating the control signal; an auxiliary signal control unit for generating the auxiliary signal; and an auxiliary signal transmitter, And used to control the unit according to the auxiliary signal to transmit the auxiliary signal. An instruction positioning method is applicable to a touch system, wherein the touch system includes a plurality of input devices, and each input device is used to generate a control And the auxiliary signal, the method for positioning the command includes: detecting a first movement track formed by the control signal on an image frame; detecting a second movement track formed by the auxiliary signal on the image frame; Providing a control module, wherein the control module is configured to perform a recognition operation according to the first movement track and the second movement track in an identification period, thereby executing the first type instruction and the first according to the corresponding input device One of the two types of instructions. The instruction positioning method of claim 7, wherein the control module calculates, within the identification period, the first moving track and the second moving track respectively on a target area corresponding to the image frame in a preset range Whether it is roughly coincident. The instruction positioning method of claim 8, wherein a starting point of the first moving track substantially coincides with a starting point of the second moving track, and the first moving track and the second moving track are in the identification The control module executes the first type of command when the cycles substantially coincide. The instruction positioning method of claim 8, wherein a starting point of the second moving track does not coincide with a starting point of the first moving track, and the first moving track and the second moving track are The control module executes the second type of command when the identification period substantially coincides.