TWI887121B - Handwriting control system for avoiding overuse and method thereof - Google Patents

Abstract

A handwriting control system for avoiding overuse and method thereof is disclosed. By sensing handwritten input through a touch display and receiving a usage status, a motion status, a disable signal, and an enable signal from a stylus, when the touch display receives the disable signal, it disables a plurality of sensors to stop sensing handwritten input and displays a health tip message prompting the user to perform wrist exercises until the enable signal is received. Upon receiving the usage status, the display shows the received usage status. The stylus continuously monitors the usage status and the motion status through the sensors to determine if they match rest conditions and wrist motion characteristics. Based on this comparison, the disable and enable signals are generated and sent to the touch display. The mechanism is help to improve handwriting efficiency and to reduce handwriting fatigue.

Description

Handwriting control system and method for avoiding excessive use

The present invention relates to a handwriting control system and method thereof, and in particular to a handwriting control system and method thereof for preventing overuse.

In recent years, with the popularity and rapid development of touch displays and styluses, various applications based on these devices have sprung up like mushrooms after rain. However, using these devices for a long time can easily cause wrist fatigue and discomfort.

Generally speaking, the traditional handwriting input method mainly relies on the user holding a stylus pen to write on a touch display, and the touch display senses the handwriting input. However, the writing surface of the touch display and the tip of the stylus are both made of very hard materials, and the handwriting comfort is far less than writing on paper, so the wrist is more likely to get tired, which in turn affects the writing efficiency, so there are problems of poor handwriting efficiency and easy fatigue.

In view of this, some manufacturers have proposed technical means to improve the material of the stylus tip, using a softer material to reduce wrist fatigue during handwriting. However, the main cause of wrist fatigue is often caused by long-term writing, and the impact caused by the material of the stylus tip is relatively small. Therefore, although this method can slightly improve the comfort of handwriting, in the long run, it is still not enough to solve the problem of poor handwriting efficiency and easy fatigue.

In summary, it can be seen that the prior art has long had the problem of poor handwriting efficiency and easy fatigue, so it is necessary to propose improved technical means to solve this problem.

The present invention discloses a handwriting control system and method for avoiding overuse.

First, the present invention discloses a handwriting control system for preventing excessive use, which includes a touch display and a stylus. The touch display has multiple sensors to sense handwriting input, and receives a usage status, a movement status, a disable signal, and an enable signal. When a disable signal is received, the sensor is disabled to stop sensing handwriting input, and a health reminder message is displayed to require the user to perform wrist movement. When an enable signal is received, the sensor is enabled to resume sensing handwriting input, and when a usage status is received, the usage status is displayed. Next, the stylus has a wireless transmission function, and the stylus includes multiple sensors, a storage element, and a hardware processor. The sensor is used to continuously sense writing speed, pen tip pressure and usage time as usage status, and continuously sense three-dimensional acceleration data and angular velocity data as movement status; the storage element is used to store rest conditions and wrist movement characteristics; and the hardware processor is connected to the sensor and the storage element, and executes multiple control instructions, so that the hardware processor is configured to: continuously transmit the usage status to the touch display; compare the usage status with the rest condition, and when the usage status meets the rest condition, generate a disable signal and transmit it to the touch display; and after the disable signal is generated, compare whether the movement status and the wrist movement characteristics are consistent, if so, generate an enable signal and transmit it to the touch display.

In addition, the present invention also discloses a handwriting control method for avoiding excessive use, the steps of which include: the touch display has a plurality of sensors to sense the handwriting input of the stylus, wherein the stylus has a wireless transmission function and stores rest conditions and wrist movement characteristics; the stylus continuously senses the writing speed, pen tip pressure and use time as the use state, and continuously senses the three-dimensional acceleration data and angular velocity data as the movement state, and continuously transmits the use state and the movement state to the touch display for display; the stylus compares the use state with the touch display, and the touch display compares the use state with the touch display, and the touch display compares the use state with the touch display, and the touch display compares the use state with the touch display, and the touch display compares the use state with the touch display, and the touch display compares the use state with the touch display, and the touch display compares the use state with the touch display, and the touch display compares the use state with the touch display, and the touch display compares the use state with the touch display, and the touch display compares the use state with the touch display. Rest condition, when the usage status meets the rest condition, a disable signal is generated and transmitted to the touch display; when the touch display receives the disable signal, the sensor is disabled to stop sensing handwriting input, and a health reminder message is displayed to require the user to perform wrist movement; after the disable signal is generated, the stylus compares the movement status with the wrist movement characteristics to see if they are consistent, and if so, an enable signal is generated and transmitted to the touch display; and when the touch display receives the enable signal, the sensor is enabled to enable the touch display to resume sensing the handwriting input of the stylus.

The system and method disclosed in the present invention are as described above. The difference from the prior art is that the present invention senses handwriting input through a touch display, and receives the usage status, movement status, disable signal and enable signal from the stylus. When the touch display receives the disable signal, the sensor is disabled to stop sensing the handwriting input, and a health reminder message is displayed to require the user to perform wrist movement until the enable signal is received. When the usage status is received, the received usage status is displayed, wherein the stylus continuously senses the usage status and movement status through the sensor to compare whether it matches the rest condition and the wrist movement characteristics, and then generates a disable signal and an enable signal according to the comparison result to transmit to the touch display.

Through the above-mentioned technical means, the present invention can achieve the technical effect of improving handwriting efficiency and reducing handwriting fatigue.

The following will be used in conjunction with drawings and embodiments to explain the implementation of the present invention in detail, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

Please refer to "Figure 1" first. "Figure 1" is a system block diagram of the handwriting control system for avoiding excessive use of the present invention. The system includes: a touch display 110 and a stylus 120. The touch display 110 has multiple sensors to sense handwriting input, and receives a use status, a movement status, a disable signal and an enable signal. When a disable signal is received, the sensor is disabled to stop sensing handwriting input, and a health reminder message is displayed to require the user to perform wrist movement. When an enable signal is received, the sensor is enabled to resume sensing handwriting input. When a use status is received, the use status is displayed. In actual implementation, after the touch display 110 receives the disable signal, a health reminder message can be displayed in full screen. The health reminder message can include at least one of text, images, and videos for guiding wrist movements to assist the user in performing wrist movements correctly, and at the same time prevent the user from continuing to use the touch display 110 in a touch operation mode.

Next, the stylus 120 has a wireless transmission function. The stylus 120 includes: a plurality of sensors (121a~121n), a storage element 122 and a hardware processor 123. The sensors (121a~121n) are used to continuously sense the writing speed, pen tip pressure and usage time as the usage status, and continuously sense the three-dimensional acceleration data and angular velocity data as the motion status. In actual implementation, the sensors (121a~121n) may include a speed sensor, a pen tip pressure sensor and a usage time sensor, wherein the speed sensor is used to sense the writing speed, the pen tip pressure sensor is used to sense the pen tip pressure, and the usage time sensor is used to record the usage time. In addition, the wireless transmission function can be implemented through technologies such as Bluetooth, Wi-Fi, Zigbee, LoRa (Long Range) or similar technologies.

The storage element 122 is used to store rest conditions and wrist movement characteristics. In actual implementation, the rest conditions may include handwriting duration, pen tip pressure threshold, and writing speed threshold. When the use time exceeds at least one of the handwriting duration, the pen tip pressure exceeds the pen tip pressure threshold, and the writing speed exceeds the writing speed threshold, the hardware processor 123 regards the use state as meeting the rest condition. In addition, the wrist movement characteristics may include the movement speed and angle range of the wrist within a predetermined time (e.g., in hours, minutes, or seconds). When the three-dimensional acceleration data exceeds the movement speed and the angular velocity data exceeds the angle range within the predetermined time, the hardware processor 123 regards the movement state as consistent with the wrist movement characteristics. In practice, the storage element 122 may include a non-volatile memory or the like.

The hardware processor 123 is connected to the sensors (121a~121n) and the storage element 122, and executes multiple control instructions, so that the hardware processor 123 is configured to: continuously transmit the usage status to the touch display; compare the usage status with the rest condition, and when the usage status meets the rest condition, generate a disable signal and transmit it to the touch display 110; and after the disable signal is generated, compare whether the movement status and the wrist movement characteristics are consistent. If so, generate an enable signal and transmit it to the touch display 110. It should be particularly noted that, in actual implementation, the hardware processor 123 of the present invention can be partially or completely implemented based on hardware, for example, through hardware processors such as integrated circuit chips, system on chip (SoC), complex programmable logic device (CPLD), field programmable gate array (FPGA), etc. The control instructions can be written in assembly language instructions, instruction set architecture instructions, machine instructions, machine-related instructions, microinstructions, firmware instructions, or any combination of one or more programming languages to form a logical circuit. The programming languages include object-oriented programming languages, such as Common Lisp, Python, C++, Objective-C, Smalltalk, Delphi, Java, Swift, C#, Perl, Ruby and PHP, as well as conventional procedural programming languages, such as C language or similar programming languages.

Please refer to "FIG. 2A" and "FIG. 2B", which are flow charts of the handwriting control method for avoiding excessive use of the present invention, and the steps include: the touch display 110 has a plurality of sensors to sense the handwriting input of the stylus 120, wherein the stylus 120 has a wireless transmission function and stores rest conditions and wrist movement characteristics (step 210); the stylus 120 continuously senses the writing speed, pen tip pressure and use time as the use state, and continuously senses the three-dimensional acceleration data and angular velocity data as the movement state, and continuously transmits the use state and the movement state to the touch display 110 for display (step 220); the stylus 120 is compared with the touch display 110, and the touch display 1 ... For the use status and rest condition, when the use status meets the rest condition, a disable signal is generated and transmitted to the touch display 110 (step 230); when the touch display 110 receives the disable signal, the sensor is disabled to stop sensing handwriting input, and a health reminder message is displayed to require the user to perform wrist movement (step 240); after the disable signal is generated, the stylus 120 compares the movement status with the wrist movement characteristics to see if they match, and if so, an enable signal is generated and transmitted to the touch display 110 (step 250); and when the touch display 110 receives the enable signal, the sensor is enabled so that the touch display 110 resumes sensing the handwriting input of the stylus 120 (step 260). Through the above steps, the touch display 110 can sense handwriting input and receive the use status, movement status, disable signal and enable signal from the stylus 120. When the touch display 110 receives the disable signal, the sensor is disabled to stop sensing the handwriting input, and a health reminder message is displayed to require the user to perform wrist movement until the enable signal is received. When the use status is received, the received use status is displayed, wherein the stylus 120 continuously senses the use status and movement status through the sensor to compare whether they match the rest condition and the wrist movement characteristics, and then generates a disable signal and an enable signal according to the comparison result to transmit to the touch display 110.

The following is explained in the form of an embodiment with reference to "Figure 3" and "Figure 4". Please refer to "Figure 3" first. "Figure 3" is a schematic diagram of the application of the present invention when the rest condition is met and the user is required to perform wrist movements. When the user holds the stylus 320 to write on the touch display 310, the stylus 320 continuously senses the user's writing speed, the pen tip pressure during writing, and the writing time through the sensor as the use state, and continuously senses the three-dimensional acceleration data (such as: obtained by the three-dimensional accelerometer) and the angular velocity data (such as: obtained by the gyroscope) as the movement state. Then, the stylus pen 320 will compare the usage status with the rest condition. When the usage status meets the rest condition (for example, the usage time exceeds the preset handwriting duration, the pen tip pressure exceeds the preset pen tip pressure threshold, the writing speed exceeds the preset writing speed threshold, etc.), the stylus pen 320 will generate a disable signal and transmit it to the touch display 110, so that the touch display 110 is disabled. The sensor located below the screen can stop sensing handwriting input, and at the same time, as shown in FIG. 3 , the touch display 310 is driven to display a health reminder message 311 in full screen mode to require the user to perform wrist movements while holding the stylus 320, such as: clenching the fist and stretching the arm upward, clenching the fist inward, clenching the fist straight, etc., to guide the user to hold the stylus to perform movements. At this time, the user can perform corresponding wrist movements according to the displayed health reminder message 311. Since the movements of wrist movement and writing are very different, the stylus 320 can identify whether the user actually performs the corresponding wrist movement by comparing the sensed movement state with the wrist movement characteristics. If so, an enable signal is generated and transmitted to the touch display 110, so that the touch display 110 enables the sensor to restore the handwriting input of the stylus 320. It should be noted that when the health reminder message 311 is displayed, the difference between the movement status and the setting of the wrist movement characteristics can also be displayed at the same time, so that the user can clearly know how to improve to meet the setting of the wrist movement characteristics. For example, the angle change of the wrist can be calculated by integration based on the angular velocity data of the movement status, and the rotation direction of the wrist can be calculated by the three-dimensional coordinate system, and then it can be determined whether it falls within the angle range of the wrist movement characteristics. If not, the difference between the two is displayed, for example: "5 degrees down" is displayed in text.

As shown in FIG. 4 , FIG. 4 is a schematic diagram of setting the rest condition and wrist motion characteristics by using the present invention. In actual implementation, the user can open the setting window 400 by touching the display 110 and respectively set the handwriting duration, the pen tip pressure threshold and the writing speed threshold in the rest condition setting block (411a-411c). Similarly, the wrist motion characteristics can also be set in the wrist motion characteristic setting block (421a-421c), and after the setting is completed, click the confirmation element 430 to save the setting. By setting the above rest conditions and wrist movement characteristics, customized settings can be made for different users. For example, some users will feel tired after writing for 30 minutes, while another user will feel tired after writing for 10 minutes. Therefore, users can set rest conditions that suit them. Similarly, if the user cannot do too intense wrist movements, a smaller angle range can be set in the wrist movement characteristic setting block 421b. Conversely, if the user feels that a too small angle range cannot achieve the effect of stretching or exercise, a larger angle range can be set.

In summary, the difference between the present invention and the prior art is that the touch display senses handwriting input and receives the use status, movement status, disable signal and enable signal from the stylus. When the touch display receives the disable signal, the sensor is disabled to stop sensing handwriting input and a health reminder message is displayed to request the user to perform wrist movement until the enable signal is received. When the use status is received, the touch display is disabled to stop sensing handwriting input. When the status is set, the received usage status is displayed, wherein the stylus continuously senses the usage status and movement status through the sensor to compare whether it matches the rest condition and wrist movement characteristics, and then generates a disable signal and an enable signal according to the comparison result to be transmitted to the touch display. This technical means can solve the problems existing in the previous technology, thereby achieving the technical effect of improving handwriting efficiency and reducing handwriting fatigue.

Although the present invention is disclosed as above with the aforementioned embodiments, they are not used to limit the present invention. Anyone skilled in similar techniques can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of patent protection of the present invention shall be subject to the scope of the patent application attached to this specification.

110: touch display 120: stylus 121a~121n: sensor 122: storage element 123: hardware processor 310: touch display 311: health reminder message 320: stylus 400: setting window 411a~411c: rest condition setting block 421a~421c: wrist movement characteristic setting block 430: determination element Step 210: the touch display has a plurality of sensors to sense handwriting input of a stylus, wherein the stylus stores a rest condition and a wrist movement characteristic Step 220: The stylus continuously senses writing speed, pen tip pressure and usage time as a usage state, and continuously senses a three-dimensional acceleration data and an angular velocity data as a motion state, and continuously transmits the usage state and the motion state to the touch display for display Step 230: The stylus compares the usage state with the rest condition, and when the usage state meets the rest condition, generates a disable signal and transmits it to the touch display Step 240: When the touch display receives the disable signal, the sensor is disabled to stop sensing handwriting input, and a health reminder message is displayed to require the user to perform wrist exercise Step 250: After the disable signal is generated, the stylus compares the movement state with the wrist movement characteristics to see if they match. If so, an enable signal is generated and transmitted to the touch display. Step 260: When the touch display receives the enable signal, the sensor is enabled so that the touch display resumes sensing the handwriting input of the stylus.

FIG. 1 is a system block diagram of the handwriting control system for avoiding overuse of the present invention. FIG. 2A and FIG. 2B are method flow charts of the handwriting control method for avoiding overuse of the present invention. FIG. 3 is a schematic diagram of the present invention requiring the user to perform wrist movements when the rest conditions are met. FIG. 4 is a schematic diagram of the present invention for setting rest conditions and wrist movement characteristics.

110: Touch display

120: Stylus pen

121a~121n: Sensor

122: Storage components

123:Hardware processor

Claims (10)

A handwriting control system for avoiding excessive use, the system comprising: A touch display having multiple sensors for sensing handwriting input, and receiving a use state, a motion state, a disable signal and an enable signal, wherein when the disable signal is received, the sensor is disabled to stop sensing handwriting input, and a health reminder message is displayed to require the user to perform wrist movement, when the enable signal is received, the sensor is enabled to resume sensing handwriting input, and when the use state is received, the use state is displayed; and A stylus having a wireless transmission function, the stylus comprising: Multiple sensors for continuously sensing a writing speed, a pen tip pressure and a use time as the use state, and continuously sensing a three-dimensional acceleration data and an angular velocity data as the motion state; A storage element for storing a rest condition and a wrist movement characteristic; and A hardware processor connected to the sensor and the storage element and executing a plurality of control instructions, so that the hardware processor is configured to: Continuously transmit the usage status to the touch display; Compare the usage status with the rest condition, and when the usage status meets the rest condition, generate the disable signal and transmit it to the touch display; and After the disable signal is generated, when the user holds the stylus and performs corresponding wrist movements according to the displayed health reminder message, the movement state sensed by the sensor is compared with the wrist movement characteristics stored in the storage element to determine whether they match. If so, the enable signal is generated and transmitted to the touch display. A handwriting control system for avoiding excessive use as claimed in claim 1, wherein the sensor includes a speed sensor, a pen tip pressure sensor and a usage time sensor, wherein the speed sensor is used to sense the writing speed, the pen tip pressure sensor is used to sense the pen tip pressure, and the usage time sensor is used to record the usage time. A handwriting control system for avoiding excessive use as claimed in claim 1, wherein the rest condition includes a handwriting duration, a pen tip pressure threshold and a writing speed threshold. When the usage time exceeds at least one of the handwriting duration, the pen tip pressure exceeds the pen tip pressure threshold and the writing speed exceeds the writing speed threshold, the usage state is deemed to satisfy the rest condition. A handwriting control system for avoiding excessive use as claimed in claim 1, wherein the wrist movement characteristic includes a movement speed and an angle range of the wrist within a predetermined time. When the three-dimensional acceleration data exceeds the movement speed and the angular velocity data exceeds the angle range within the predetermined time, the movement state is deemed to be consistent with the wrist movement characteristic. As in claim 1, the handwriting control system for preventing excessive use, wherein after the touch display receives the disable signal, the health care reminder message is displayed in full screen, and the health care reminder message includes at least one of text, image, and video for guiding wrist movement, so as to assist the user to perform wrist movement correctly. A handwriting control method for avoiding excessive use, the steps of which include: A touch display has multiple sensors to sense the handwriting input of a stylus, wherein the stylus has a wireless transmission function and stores a rest condition and a wrist movement feature; The stylus continuously senses the writing speed, pen tip pressure and use time as a use state, and continuously senses a three-dimensional acceleration data and an angular velocity data as a movement state, and continuously transmits the use state and the movement state to the touch display for display; The stylus compares the use state with the rest condition, and when the use state meets the rest condition, generates a disable signal and transmits it to the touch display; When the touch display receives the disable signal, the sensor is disabled to stop sensing handwriting input, and a health reminder message is displayed to require the user to perform wrist movement; After the disable signal is generated, when the user holds the stylus and performs corresponding wrist movement according to the displayed health reminder message, the stylus compares the movement state with the wrist movement characteristics to see if they match, and if so, generates an enable signal and transmits it to the touch display; and When the touch display receives the enable signal, the sensor is enabled to enable the touch display to resume sensing the handwriting input of the stylus. A handwriting control method for avoiding excessive use as in claim 6, wherein the handwriting pen includes a speed sensor, a pen tip pressure sensor and a usage time sensor, wherein the speed sensor is used to sense the writing speed, the pen tip pressure sensor is used to sense the pen tip pressure, and the usage time sensor is used to record the usage time. A handwriting control method for avoiding excessive use as in claim 6, wherein the rest condition includes a handwriting duration, a pen tip pressure threshold and a writing speed threshold. When the usage time exceeds at least one of the handwriting duration, the pen tip pressure exceeds the pen tip pressure threshold and the writing speed exceeds the writing speed threshold, the usage state is deemed to satisfy the rest condition. A handwriting control method for avoiding excessive use as in claim 6, wherein the wrist movement characteristic includes a movement speed and an angle range of the wrist within a predetermined time. When the three-dimensional acceleration data exceeds the movement speed and the angular velocity data exceeds the angle range within the predetermined time, the movement state is deemed to be consistent with the wrist movement characteristic. A handwriting control method for avoiding excessive use as in claim 6, wherein after the touch display receives the disable signal, the health care reminder message is displayed in full screen, and the health care reminder message includes at least one of text, image, and video for guiding wrist movement to assist the user to perform wrist movement correctly.

Images