TW201415299A - Tongue-activated computer cursor control system and method - Google Patents

Abstract

The present invention provides a tongue-activated computer cursor control system and method. In the tongue-activated computer cursor control method, a direct response switch module is disposed at a portion that can be directly reached by the tongue of an user and an indirect response sensor device is disposed at the low jaw portion of the user. With the direct response switch module, it obtains first and second switching signals, which are converted into left button or right button click signal so as to perform a click and shoot operation. With the indirect response sensor module, it obtains first and second sensing signals, wherein the magnitudes and voltage difference of the first and second sensing signals are converted into corresponding up, down, left, and right direction movement signals for controlling cursor movement. As a result, a patient of total paralysis is able to manipulate an electronic apparatus by using his/her tongue for operation.

Description

Tongue-moving computer cursor control system and method

The invention relates to a computer cursor control system, in particular to a tongue-and-moving cursor control system and method.

In recent years, due to changes in social forms and advances in medical technology, infectious diseases that have seriously threatened people's lives have been greatly reduced, but they have been replaced by accidents caused by work mistakes or traffic accidents. Currently, people are living. The most serious accidental injury encountered in the middle is the general paralysis; most of the patients who suffer from general paralysis caused by spinal nerve damage will lose their language function and cannot control the movements of their limbs, so they cannot go smoothly with the outside world. Communication depends on the assistance of various assistive devices.

With the rapid development of technology, more and more clerical instruments, furniture, home appliances or vehicles are electronically equipped and equipped with microprocessors to provide more environmentally friendly, efficient and convenient services; however, Since most electronic products need to be operated through a mouse or keyboard, such seemingly simple actions are completely unrealizable dreams for patients with generalized paralysis; therefore, the current situation is aimed at such patients with generalized paralysis. An eye-controlled control system capable of smoothly controlling the cursor is designed by detecting the rotation of the eyeball of the whole body and the movement of the blinking eye.

However, because the eye muscle group (inner rectus, lateral rectus, superior rectus, inferior rectus, superior oblique and inferior oblique muscles) that controls the rotation of the eyeball is not as good as the upper limb muscle group or the lower limb muscle group. Very sensitive, and its muscular endurance is far lower than the upper limb muscle group and the lower limb muscle group; therefore, when the whole body is paralyzed When a patient with a sputum operates an existing eye-guided cursor control system, the eye muscle group is prone to fatigue quickly and thus cannot be sustained and long-lasting; if the patient still insists on operating at this time, it may further cause irreparable Damage; therefore, it is necessary to further propose better improvement solutions for the existing eye-controlled cursor control system, which can not operate for a long time and easily cause the loss of sports injuries.

In view of the above-mentioned existing eye-controlled cursor control system, which cannot operate for a long time and easily cause loss of sports injuries, the main object of the present invention is to provide a tongue-and-moving cursor control system and method.

The main technical means used to achieve the above purpose is the tongue-and-moving cursor control system, which comprises: a head-mounted vehicle having a first fixing frame and a second fixing frame; a direct reaction switching mode The group includes two micro-switches disposed on the first mount of the head-mounted carrier; wherein the two micro-opening relationships respectively correspond to a portion directly accessible to the user's tongue to sense the user's tongue touch Touching the action of the two micro switches, and correspondingly generating a first switching signal and a second switching signal; an indirect reaction sensing module comprising a second piezoelectric element and disposed on the head carrier The second piezoelectric element is respectively placed against the user's lower jaw position to sense the pressure change of the lower jaw muscle when the user moves the tongue, and correspondingly generates a first sensing signal and a second a sensing signal; and a microprocessor connected to the direct response switch module and the indirect reactive sensing module; and the first sensing signal generated by the two piezoelectric elements And the second sensing signal is respectively converted into an up, down, left, and right direction moving signals to control the movement of the cursor; and the first switching signal and the second switching signal of the two micro switches are respectively converted into left and right click signals, To perform a click action.

The main technical means for achieving the above purpose is to control the tongue-and-moving computer cursor control method, which comprises: providing a direct reaction switch module in a position directly accessible to the user's tongue and providing a user in the lower jaw portion of the user An indirect response sensing component; a first switching signal or a second switching signal is obtained through the direct response switching module; and a first sensing signal and a second sensing signal are obtained through the indirect reactive sensing module; The first switch signal or the second switch signal is converted into a left button or a right click signal to perform a click action; and the first and second sense signals are converted into upper, lower, left, and right directions to move the signal to control the cursor mobile.

As can be seen from the above description, since the movement of the tongue is not controlled by the spinal nerves, the tongue of the whole body can smoothly and normally operate; and the sensitivity and muscular endurance of the tongue itself are much higher than that of the eye. Muscle group, so the patient can operate the tongue-operated cursor control system of the present invention for a long time without the problem of sports injury; therefore, the tongue-operated cursor control system of the present invention can be directly disposed on the patient's tongue. And the direct reaction switch module of the part and the indirect reaction sensing module disposed on the lower jaw detect the use action of the tongue of the patient; therefore, when the patient causes the tongue to reach forward When one of the micro switch is in time, the microprocessor outputs a left click signal or a right click signal according to the presence or absence of the first switch signal or the second switch signal; and when the patient moves the tongue arbitrarily in the mouth, The microprocessor outputs a moving signal with a corresponding state of the up, down, left or right direction according to the voltage magnitude and the voltage difference between the first sensing signal and the second sensing signal; thereby replacing the tongue movement The effect of eyeball rotation.

Please refer to FIG. 1 and FIG. 2 , which are the tongue-and-moving computer cursor control system of the present invention, which comprises a head mounted vehicle 10 , a direct reaction switch module 20 , an indirect reaction sensing module 30 and a micro processing The first mounting frame 11 has a first fixing frame 11 and a second fixing frame 12; in the embodiment, the first fixing frame 11 extends and is close to the user's tongue. The location (e.g., at the two side noses of the face), and the second mount 12 extends and is adjacent to the two sides of the user.

The direct reaction switch module 20 includes two micro-switches 21 and is disposed on the first mount 11 of the head-mounted carrier 10; wherein the two micro-switches 21 are respectively directly accessible to the user's tongue. a portion of the second micro switch 21 is correspondingly disposed in the embodiment The position of the first fixed frame 11 is close to the two sides of the nose, and the two micro-switches 21 respectively abut against the noses of the user. When the user's tongue is pressed from the inside of the mouth to the top of the nose, the corresponding position will be touched. The micro switch 21; the direct reaction switch module 20 further includes: The bounce circuit 22 is connected to the micro switch 11 respectively, and the switching signal generated by the corresponding micro switch 21 is output after filtering the bounce noise.

The indirect response sensing module 30 includes a second piezoelectric element 31 and is disposed on the second mounting frame 12 of the head carrier 10; wherein the two piezoelectric elements 31 are respectively placed on the user's The lower jaw position is configured to sense a pressure change of the lower jaw muscle when the user moves the tongue, and correspondingly generate a first sensing signal and a second sensing signal; in this embodiment, the two piezoelectric element 31 is a current The sensing elements of the type are respectively disposed on the second fixing frame 12 at positions close to the lower jaws of the two sides, and the two piezoelectric elements 31 respectively correspond to the lower jaws of the user; and the indirect reaction sensing The module 30 further includes: a two-current to voltage circuit 32 connected to the corresponding two-piezoelectric element 31, and converting the current-type sensing signal outputted by the piezoelectric element 31 into a voltage type; 33, respectively connected to the corresponding two current to voltage circuit 32 and amplified by its sensing signal; and two analog to digital circuit 34, respectively connected to the corresponding two voltage amplifier 33, and the voltage amplifier 33 Analog analogy The sensing signal is converted into a digital sensing signal and output.

The microprocessor 40 is connected to the direct reaction switch module 20 and the indirect reaction sensing module 30; and converts the first sensing signal and the second sensing signal generated by the two piezoelectric elements 31 respectively. Moving the signal in the up, down, left, and right directions to control the movement of the cursor; and converting the first switching signal and the second switching signal of the two micro switch 21 into left and right click signals respectively In the embodiment, the microprocessor 40 has a built-in pressure difference value, a high voltage reference value, and a low voltage reference value, and includes the following program: a cursor click determination program, through the direct The reaction switch module 20 obtains a first switch signal or a second switch signal; and converts the first switch signal or the second switch signal into a left button or a right click signal to perform a click action; a cursor movement determination program, The first inductive signal and the second sensing signal are obtained by the indirect response sensing module 30; and the signals are converted into upper, lower, left and right directions according to the first and second sensing signals to control The cursor movement determination program first determines whether the pressure difference between the first sensing signal and the second sensing signal is greater than a preset pressure difference value, and if it is greater than, outputs a left and right direction moving signal, thereby Controlling the cursor to move to the left and right directions; and moving the cursor toward the left or the right direction is determined by the size of the first sensing signal and the second sensing signal; and if the first sensing signal is When the pressure difference between the second sensing signal and the second sensing signal is not greater than the preset pressure difference, the cursor movement determining program determines whether the first sensing signal and the second sensing signal simultaneously exceed the high voltage reference value or the low voltage. a reference value; if yes, respectively outputting an up or down direction to move the signal, thereby controlling the cursor to move upward or downward; and when the first sensing signal and the second sensing signal simultaneously exceed the high voltage reference value, controlling The cursor moves downward; conversely, if both are lower than the low pressure value, the cursor is controlled to move upward.

As can be seen from the above description, the present invention utilizes the head mounted carrier 10 to mount a direct response to a specific position on the head of a user (e.g., a patient with a generalized body). The group 20 and the indirect reaction sensing module 30, and the user can use the tongue to strike the two micro switches 21, so that the microprocessor 40 can obtain the message that the patient wants to click the cursor or right click on the cursor. And accordingly, a left button or a right click signal for controlling the host computer 50 to generate a cursor click effect is generated; as shown in FIG. 3, when the patient hits the micro switch on the right nose with the tongue. 21, the direct response switch module 20 immediately generates a corresponding switch signal to the microprocessor 40; and the microprocessor 40 correspondingly generates a right click signal, and outputs to the computer host 50; The display 51 of the host 50 displays the same action as the normal mouse clicks on the right button.

Furthermore, referring to FIG. 4, through the use of the two piezoelectric elements 31 and the cursor movement determination program in the microprocessor 40, the patient can interlock the muscles of the lower jaw by the rotation of the tongue. The two piezoelectric elements 31 respectively placed in the lower left and lower right ridges are pressed and generate corresponding sensing signals; when the sensing signals of the piezoelectric elements 31 corresponding to the lower left 大于 are larger than the sensing signals of the piezoelectric elements 31 corresponding to the lower right 颚At that time, it means that the patient's tongue is currently offset to the left cheek; therefore, the microprocessor 40 correspondingly generates a left-direction mobile signal and outputs it to the computer host 50; the display 51 of the computer host 50 is displayed The cursor moves to the left: if the first sensing signal is relatively close to the second sensing signal, that is, the tongue of the patient is in the middle, the microprocessor 40 determines the first sensing signal and the second The magnitude of the voltage value of the sensing signal; if it is larger, it means that the tongue is downwardly biased, so the microprocessor 30 correspondingly generates a signal having a downward direction; and conversely, a signal having an upward direction is generated correspondingly.

Furthermore, the microprocessor 30 further includes a preset program, and the The preset program is configured to set the low voltage reference value and the high voltage reference value; wherein the preset program detects the voltage value of the first sensing signal and the second sensing signal when the user's tongue is topped up. The size is recorded as the low voltage preset value; and the magnitude of the voltage value of the first sensing signal and the second sensing signal is detected and detected as the high voltage preset. value.

Finally, the computer host 40 that receives the mobile signals in the up, down, left, and right directions can be moved in the up, down, left, and right directions, in addition to the continuous movement of the normal cursor. The cursor is moved a certain distance; thereby providing a more diverse selection of operating cursors for the patient.

Furthermore, in order to avoid the misjudgment of the microprocessor caused by the interference of the user's tongue linkage during the detection process, when the user's tongue is doing the up, down, left and right actions, the micro is in the micro The processor 30 detects the 0.5~1 second after the action is started, and starts to output the corresponding up, down, left, and right direction mobile signals.

In order to improve the connection speed between the microprocessor 30 and the host computer of the present invention, the microprocessor 30 further includes a UART (Universal Asynchronous Receiver/Transmitter), so as to be connected to the computer host 40. UART埠 to achieve higher transfer rates.

Therefore, in summary, since the action of the tongue is not controlled by the spinal nerves, and the sensitivity of the tongue itself is relatively sensitive and the muscle endurance is relatively long, the user can operate the invention for a long time without causing any hurt.

10‧‧‧ head mounted vehicle

11‧‧‧First mount

12‧‧‧Second holder

20‧‧‧Direct Reaction Switch Module

21‧‧‧ micro switch

22‧‧‧ bounce circuit

30‧‧‧Indirect response sensing module

31‧‧‧Piezoelectric components

32‧‧‧Current to voltage circuit

33‧‧‧Voltage amplifier

34‧‧‧ analog to digital circuit

40‧‧‧Microprocessor

50‧‧‧Computer host

51‧‧‧ display

Figure 1: Circuit diagram of the tongue-operated computer cursor control system of the present invention.

Figure 2: Schematic diagram of the use of the tongue-operated computer cursor control system of the present invention.

Fig. 3 is a schematic view showing the use of the present invention when operating a micro switch module.

Figure 4 is a schematic view showing the use of the present invention in operating a piezoelectric detecting module.

20‧‧‧Direct Reaction Switch Module

21‧‧‧ micro switch

22‧‧‧ bounce circuit

30‧‧‧Indirect response sensing module

31‧‧‧Piezoelectric components

32‧‧‧Current to voltage circuit

33‧‧‧Voltage amplifier

34‧‧‧ analog to digital circuit

40‧‧‧Microprocessor

50‧‧‧Computer host

Claims (10)

A tongue-operated computer cursor control system, comprising: a head-mounted vehicle having a first fixing frame and a second fixing frame; a direct reaction switch module comprising two micro-switches and setting On the first mounting bracket of the head-mounted carrier; wherein the two micro-opening relationships respectively correspond to the directly reachable portion of the user's tongue, so as to sense the action of the user's tongue touching the two micro-switches, and correspondingly generate a first switching signal and a second switching signal; an indirect reactive sensing module comprising a second piezoelectric element disposed on the second mounting of the head mounted carrier; wherein the two piezoelectric elements Depending on the user's lower jaw position, the user senses the pressure change of the lower jaw muscle when the user moves the tongue, and correspondingly generates a first sensing signal and a second sensing signal; and a microprocessor Connecting to the direct reaction switch module and the indirect reaction sensing module; and converting the first sensing signal and the second sensing signal generated by the two piezoelectric elements into upper, lower, left, and right directions respectively Signal to control the tour Movement; a first switch and a second switch signal and the two signals are converted micro-switch to the left, right click signal, to perform a click operation. The tongue-and-motion computer cursor control system according to claim 1, wherein the first fixing frame extends and is close to a position accessible to a user's tongue, and the second fixing frame extends and is adjacent to two sides of the user. Squat. The tongue-and-motion computer cursor control system according to claim 2, wherein the two piezoelectric elements are current output type sensing members, and correspondingly disposed on the second fixing frame at positions close to the lower sides of the second fixing frame, and The piezoelectric element is respectively corresponding to the lower jaw of the user; and the indirect reaction sensing module is connected The first step comprises: two current-converting voltage circuits respectively connected to the corresponding two-piezoelectric elements, and converting the sensing signals of the current form of the piezoelectric elements into a voltage type; the two voltage amplifiers are respectively connected to the corresponding The two current-to-voltage circuit is amplified by the sensing signal thereof; and the second analog-to-digital circuit is respectively connected to the corresponding two-voltage amplifier, and converts the analog signal of the analog output output by the voltage amplifier into The digital type of sensing signal is output. The tongue-and-moving computer cursor control system according to claim 3, wherein the two micro-motion opening relationships respectively correspond to positions on the first fixing frame adjacent to the two side noses, and the two micro-motion opening relationships respectively correspond to the user The two sides of the nose; the direct response switch module further includes: a second bounce circuit, which is respectively connected to the micro switch, and the switching signal generated by the corresponding micro switch is output after filtering the bounce noise . The tongue-and-motion computer cursor control system of claim 4, wherein the two micro-motion open relationships are respectively disposed on the first fixed frame adjacent to the two side nose wings, and the two micro-motion open relationships respectively correspond to the user The two sides of the nose; the direct response switch module further includes: a second bounce circuit, which is respectively connected to the micro switch, and the switching signal generated by the corresponding micro switch is output after filtering the bounce noise . The tongue-and-motion computer cursor control system of claim 5, the microprocessor further comprising a UART (Universal Asynchronous Receiver/Transmitter). A tongue-and-motion computer cursor control as claimed in any one of claims 1 to 6. The system includes: a cursor click determination program, wherein the first switch signal or a second switch signal is obtained through the direct response switch module; and the first switch signal or the second switch signal is converted a left click or a right click signal to perform a click action; and a cursor movement determination program to obtain a first sensing signal and a second sensing signal through the indirect response sensing module; The two sensing signals are converted into moving signals in the up, down, left, and right directions to control the movement of the cursor. A tongue-operated computer cursor control method includes: a direct reaction switch module disposed at a position directly accessible to a user's tongue; and an indirect reaction sensing component disposed at a lower jaw portion of the user; The first switching signal or the second switching signal is obtained by the indirect reactive sensing module; the first switching signal or the second switching signal is converted into Left-click or right-click the signal to perform a click action; and convert the first and second sensing signals into upper, lower, left, and right directions to control the movement of the cursor. The tongue-and-motion computer cursor control method according to claim 8, wherein the step of controlling the cursor movement according to the first and second sensing signals being converted into the up, down, left, and right directions includes the following procedures: Determining a pressure difference between the first sensing signal and the second sensing signal Whether it is greater than a preset pressure difference value; if it is greater than, the left and right direction signals are output, thereby controlling the cursor to move to the left and right directions; and the cursor is moved to the left or right direction by the first sensing signal And determining the size of the second sensing signal; and if the pressure difference between the first sensing signal and the second sensing signal is not greater than a preset pressure difference, the cursor movement determining program determines the above Whether the first sensing signal and the second sensing signal simultaneously exceed a high voltage reference value or a low voltage reference value; and if so, respectively output an up or down direction to move the signal, thereby controlling the cursor to move upward or downward; and When the first sensing signal and the second sensing signal simultaneously exceed the high voltage reference value, the cursor is controlled to move downward; if the both are lower than the low pressure value, the cursor is controlled to move upward. . The tongue-and-motion computer cursor control method of claim 9, further comprising a preset program, wherein the preset program is configured to set the low-voltage reference value and the high-voltage reference value; wherein the preset program detects When the tongue of the user is up, the magnitude of the voltage value of the first sensing signal and the second sensing signal is recorded as the low voltage preset value; and when the user's tongue is detected to be depressed, the The magnitude of the voltage value of the first sensing signal and the second sensing signal is recorded as the high voltage preset value.