TWI821902B - Desk mat for detecting computer peripheral equipment and its detection method - Google Patents

Abstract

The invention relates to a table mat for detecting computer peripheral equipment and a detection method thereof. The peripheral equipment slides on the pad body and emits wireless signals outward from wireless signal transmitters provided at three relative positions of the pad body. The ultrasonic signal is used for the wireless signal receiver of the peripheral device to receive the wireless ultrasonic signal, and convert the received wireless signal into a data signal, and then transmit it to the connection interface of the default computer host through the connection interface. Assuming that the control unit of the computer host receives the data signal received by the connection interface, an algorithm can be used to calculate the distance between the four points formed between the three wireless signal transmitters and the wireless signal receiver of the peripheral device, and then based on The distance between the four points is calculated, and the coordinate information between the location of the peripheral device and the three wireless signal receivers is calculated to achieve the purpose of accurately detecting the location of the peripheral device.

Description

Desk mat for detecting computer peripheral equipment and its detection method

The present invention provides a table mat for detecting computer peripheral equipment and a detection method thereof. In particular, it refers to a table mat and a detection method thereof that can accurately locate the position of peripheral equipment. Through the three-phase wireless signal transmitter of the table mat, A wireless ultrasonic signal is sent for the wireless signal receiver of the peripheral device to receive the wireless ultrasonic signal, and the control unit of the default computer host uses an algorithm to calculate the distance between the peripheral device and the three wireless signal transmitters to achieve The purpose of obtaining the coordinate positioning of peripheral equipment.

Press, with the continuous advancement of electronic technology, computers have become essential tools and appliances in daily life. In addition to general household computers, there are also various types of computers such as learning computers for teaching, work computers, and industrial computers. Commonly used computers include host computers and peripheral display screens, keyboards, mice or printers, scanners, etc., which are used for various work modes such as word processing, computer graphics, Internet connection, music playback, and video playback. It has become a tool that many people rely on in their daily lives. When computers operate applications, they use peripheral devices such as keyboards and mice to input control signals to the computer host, and then execute relevant program operations through the control unit of the computer host to smoothly run the computer. To perform operations, the computer host and peripheral devices such as screens, keyboards, and mice are electrically connected through transmission lines, so that the computer host receives the control signals transmitted by the keyboard, mouse, etc., and displays the relevant operation images on the screen. Connect the computer host and Peripheral devices such as screens, keyboards, and mice can reliably and stably transmit operating signals and allow the computer to operate more smoothly.

However, computers are generally installed on computer desks, desks or office desks, etc., and are often limited by the space on the desktop and the influence of other appliances, making the location around the computer surrounded by screens and screens connecting the computer host and peripheral devices. Most transmission lines such as keyboards, mice, or printers can easily interfere with other tasks on the desktop, which is a bit inconvenient and troublesome in practical applications. Therefore, some industry players have developed wireless signal transmission methods to connect the computer host and various peripheral devices. Operation signals can be transmitted through wireless signal transmission, which can also avoid taking up space on the desktop and reduce the impact on related operations; however, wireless signals can be transmitted between the computer host and peripheral devices through wireless transmission, which are installed on Wireless signal transmitters and wireless signal receivers of computer hosts and peripheral devices are easily limited by the wireless signal projection angle of the wireless signal transmitter, the reception angle of the wireless signal receiver, or are affected and interfered by metal objects around the desktop. etc., causing the wireless signal receiver to be unable to successfully receive the wireless signal transmitted by the wireless signal transmitter, or receiving the wireless signal to be intermittent and unstable, causing the operation between the computer host and various peripheral devices to be unsmooth, affecting the work progress, etc. Missing.

Therefore, how to solve the inconvenient problems and problems caused by the current transmission of computer hosts and peripheral devices through wired or wireless signals, and the computer host and peripheral devices, etc., and the space and objects on the desktop are easy to interfere with each other and affect the work. The troubles and shortcomings are the directions for improvement that relevant manufacturers in this industry urgently want to study.

Therefore, in view of the above problems and deficiencies, the inventor collected relevant information, evaluated and considered it from many parties, and used his many years of experience in this industry to continuously create and modifications, and was the birthplace of the invention patent for designing this table mat for detecting computer peripherals and its detection method.

The main purpose of the present invention is the table mat for detecting computer peripheral equipment and the detection method thereof. The peripheral equipment slides and moves on the mat body, and is emitted by wireless signals provided by the mat body at three relative positions. The receivers respectively transmit wireless ultrasonic signals over a wider area for wireless signal receivers installed in peripheral devices. After successfully receiving the wireless ultrasonic signals over a wide angle range, they convert them into data signals and then pass them through. The connection interface is sent to the connection interface of the default computer host, and the control unit of the default computer host receives the data signal received by the connection interface. The control unit uses an algorithm to calculate the wireless signal receivers of the three wireless signal transmitters and peripheral devices. Based on the distance between the four points, the coordinate information between the location of the peripheral device and the three wireless signal transmitters is calculated to achieve the purpose of accurately detecting the location of the peripheral device, and The control signal is stably and smoothly transmitted to the default computer host for operation.

Another object of the present invention is that the pad system is provided with wireless signal transmitters at two opposite corner positions on one side and a central position respectively. The wireless signal transmitters located at two opposite corners on one side of the pad body are respectively connected to the pad body. The two adjacent sides of the pad are set at an angle of 45°, and the wireless signal transmitter in the center is set at a 90° angle to one side of the pad body. The transmission interface of the pad body can be connected to the preset device through wired or wireless methods. A connection interface of the computer host is provided, and the peripheral device is provided with a connection interface connected to the connection interface of the default computer host. The default computer host is provided with a control unit that can perform calculations using algorithms on wired or wireless signals received by the connection interface. Processing and other tasks.

Another object of the present invention is that the peripheral device can be a wireless mouse or a wireless keyboard, and the peripheral device is provided with a wide-angle wireless signal receiver, and the wireless signal receiver If the device receives wireless signals in a wide-area angle θ range, then the wide-area angle θ range can be between 180° and 200°.

Another object of the present invention is that the algorithm defines the coordinates of three wireless signal transmitters, and then calculates the coordinate position of the peripheral device based on the distance between the wireless receiver of the peripheral device and the coordinate positions of the three wireless signal transmitters. Whether it is within the effective range of wireless signal transmission and reception, wireless signals can be stably transmitted within the effective range.

Another object of the present invention is that the wireless signal transmitters provided at three opposite positions on one side of the pad can be ultrasonic transmitters, and the wireless signal receivers of the peripheral equipment can be ultrasonic transmitters. receiver.

1: Pad body

11:The first wireless signal transmitter

12:Second wireless signal transmitter

13: The third wireless signal transmitter

14:Transmission interface

15: Processing unit

2: Peripheral equipment

21:Wireless signal receiver

22:Connection interface

23:Microprocessing unit

3: Computer host

31:Connection interface

32:Control unit

[Figure 1] is a three-dimensional appearance view of the present invention.

[Figure 2] is a top view of the pad body and peripheral equipment of the present invention.

[Figure 3] is a coordinate position detection diagram of the pad body and peripheral equipment of the present invention.

[Figure 4] is a simple block diagram of the present invention.

[Figure 5] is a flow chart of the present invention.

In order to achieve the above objects and effects, the technical means, structures, implementation methods, etc. used in the present invention are described in detail below for a complete understanding of the preferred embodiments of the present invention.

Please refer to Figures 1, 2, 3, 4, and 5, which are a three-dimensional appearance view of the present invention, a top view of the pad body and peripheral equipment, a coordinate position detection diagram of the pad body and peripheral equipment, and a simple method. As shown in the block diagram and flow chart, it can be clearly seen that the desk pad system for detecting computer peripheral equipment of the present invention includes a pad body 1 and peripheral equipment 2, wherein:

The pad body 1 includes a first wireless signal transmitter 11, a second wireless signal transmitter 12 and a third wireless signal receiver 13 respectively arranged at three positions on one side.

The peripheral device 2 is slid and displaced on the pad body 1, and the peripheral device 2 includes a wireless signal receiver 21 that can receive wireless ultrasonic signals transmitted by the three wireless signal transmitters 11, 12, and 13.

The above-mentioned cushion body 1 is provided with a first wireless signal transmitter 11, a second wireless signal transmitter 12, and a third wireless signal transmitter 13 respectively at two opposite corner positions and a central position on one side, and the cushion body 1 further There is a transmission interface 14 and a processing unit 15 for transmitting signals. The processing unit 15 can be electrically connected to three wireless signal transmitters 11, 12, 13 and the transmission interface 14 respectively. The processing unit 15 can control the transmission interface 14. The connection interface 31 of the computer host 3 is preset using a wired or wireless method. The first wireless signal transmitter 11 and the second wireless signal transmitter 12 are provided at two opposite corners of one side of the pad 1. The third wireless signal transmitter 13 is located in the center, and the first wireless signal transmitter 11 and the second wireless signal transmitter 12 located at two opposite corners of the cushion body 1 are respectively connected to two adjacent sides of the cushion body 1 The third wireless signal transmitter 13 in the center is arranged at a 90° angle to one side of the pad body 1 (please also refer to Figures 1 and 2). , as shown in Figure 2), the first wireless signal transmitter 11, the second wireless signal transmitter 12, and the third wireless signal transmitter 13 can be ultrasonic transmitters respectively.

The wireless signal receiver 21 of the peripheral device 2 can be an ultrasonic receiver, and is provided with a connection interface 22 for wired or wireless signal transmission, and is further provided with an electrical connection for wireless signals. The receiver 21 and the microprocessing unit 23 of the connection interface 22.

Moreover, the first wireless signal transmitter 11, the second wireless signal transmitter 12 and the third wireless signal transmitter 13 of the pad body 1 are respectively wide-angle wireless ultrasonic signal transmitters, which can transmit outwards respectively. A wide-area ultrasonic signal, and the wireless signal receiver 21 of the peripheral device 2 can receive an external ultrasonic signal in a wide-area angle [θ] interval, and the wide-area angle [θ] interval can be between 180°~ between 200°.

The above-mentioned processing unit 15 of the pad body 1 can control the first wireless signal transmitter 11, the second wireless signal transmitter 12, the third wireless signal transmitter 13, etc., to transmit wireless ultrasonic signals over a wide area. , for the wireless signal receiver 21 of the peripheral device 2 to receive wireless signals transmitted from the first wireless signal transmitter 11, the second wireless signal transmitter 12, the third wireless signal transmitter 13, etc. in a wide area angle [θ] interval. The ultrasonic signal is transmitted from the wireless signal receiver 21 to the microprocessing unit 23 and is first converted into a data signal. The connection interface 22 is then used to transmit the data signal via wired or wireless transmission (which can be Wi-Fi, wireless radio frequency transmission (RF)). ), etc.) are transmitted to the connection interface 31 of the default computer host 3, and the default computer host 3 receives the data signal of the connection interface 31 through the provided control unit 32, and uses an algorithm to perform calculation processing. The calculation The legal system defines the coordinates of the first wireless signal transmitter 11, the second wireless signal transmitter 12 and the third wireless signal transmitter 13, and then based on the wireless signal receiver 21 of the peripheral device 2 and the first wireless signal transmitter 11, the third The distance formed by the coordinate positions of the second wireless signal transmitter 12 and the third wireless signal transmitter 13 is calculated to determine whether the coordinate position of the peripheral device 2 is within the effective range of wireless ultrasonic signal transmission and reception, so that stable transmission can be achieved within the effective range. wireless signal.

The above-mentioned processing unit 15 of the pad body 1, the microprocessing unit 23 of the peripheral device 2, and the control unit 32 of the default computer host 3 can respectively be a central processing unit, a chip, a microprocessor, etc.; furthermore, the pad body 1 The transmission interface 14, the connection interface 22 of the peripheral device 2 and the connection interface 31 of the default computer host 3 can be a wired USB connector interface, a DVI connector interface, an HDMI connector interface or a coaxial connector (RF) interface respectively. wait.

Please refer to Figures 1, 2, 3, 4, and 5 again, which are three-dimensional appearance diagrams, top views of the pad body and peripheral equipment, coordinate position detection diagrams of the pad body and peripheral equipment, and simple block diagrams of the present invention. From the flow chart, it can be clearly seen that the above-mentioned table mat for detecting computer peripheral equipment of the present invention, the table mat detection method includes the pad body 1 and the peripheral equipment 2, and can be implemented according to the following steps :

(A01) The peripheral device 2 slides and moves on the pad 1, and the wireless signal receiver 21 provided by the peripheral device 2 can receive external wireless ultrasonic signals in a wide angle [θ] range.

(A02) The first wireless signal transmitter 11, the second wireless signal transmitter 12 and the third wireless signal transmitter 13 located at the central position of the pad 1 can respectively emit 40KHz pulses outward. Wireless ultrasonic signals are used for the wireless signal receiver 21 of the peripheral device 2 to receive the 40KHz pulse wireless ultrasonic signals transmitted by the first wireless signal transmitter 11, the second wireless signal transmitter 12 and the third wireless signal transmitter 13 respectively. .

(A03) The pad body 1 is provided with a wide-angle first wireless signal transmitter 11, a second wireless signal transmitter 12 and a third wireless signal transmitter 13 around one side, and the three wireless signal transmitters 11, 12 , 13 transmits wireless ultrasonic signals outwards in a wide area, and the wireless signal receiver 21 of the peripheral device 2 receives the wireless ultrasonic signals in a wide area angle [θ] interval, then the wide area angle [θ] can be between 180°~200° for the wireless signal receiver 21 of the peripheral device 2 to receive the wireless ultrasonic signal.

(A04) The wireless signal receiver 21 of the peripheral device 2 can convert the received wireless signal into a data signal through the microprocessing unit 23, and then the microprocessing unit 23 can transmit it via a wired (such as USB) through the connection interface 22. Connector interface, DVI connector interface, HDMI connector interface or coaxial connector (RF) interface, etc.] or wireless (can be Wi-Fi, RF, etc.) or other methods to transmit the connection to the default computer host 3 interface 31, and the control unit 32 of the default computer host 3 receives the data signal received by the connection interface 31.

(A05) The control unit 32 of the default computer host 3 uses an algorithm to calculate the first wireless signal transmitter 11 , the second wireless signal transmitter 12 and the third wireless signal transmitter 13 and the wireless signal receiver of the peripheral device 2 The distance between the four points formed by 21.

(A06) The control unit 32 uses an algorithm to calculate the distance between the location of the peripheral device 2 and the first wireless signal transmitter 11 , the second wireless signal transmitter 12 and the third wireless signal transmitter 13 based on the distance between the four points. coordinate information.

Then in the above steps (A01) and (A02), the first wireless signal transmitter 11, the second wireless signal transmitter 12 in the two relative positions of the pad 1 and the third wireless signal transmitter 13 in the central position are processed. The unit 15 controls the first wireless signal transmitter 11 , the second wireless signal transmitter 12 and the third wireless signal transmitter 13 to respectively transmit wireless ultrasonic signals over a wide area. The peripheral device 2 can be a wireless mouse. Or a wireless keyboard, etc., and a wide-angle wireless signal receiver 21 is provided in the peripheral device 2, which can receive wireless ultrasonic waves emitted by the three external wireless signal transmitters 11, 12, and 13 in a wide angle [θ] range. signal, the wide-angle angle [θ] range can be between 180° and 200°.

And the cushion body 1 of the above step (A02) is provided with a first wireless signal transmitter 11, a second wireless signal transmitter 12 and a central position respectively at two opposite corner positions on one side. A third wireless signal transmitter 13 is provided, and the pad body 1 is further provided with a transmission interface 14 and a processing unit 15 for transmitting signals. The processing unit 15 is electrically connected to the three wireless signal transmitters 11, 12, 13 and the transmission interface 14 respectively. , the transmission interface 14 can be controlled by the processing unit 15 and can be connected to the connection interface 31 of the default computer host 3 through wired or wireless methods, and then the default computer host 3 receives the connection interface through the provided control unit 32 31 data signals are processed using algorithms.

The first wireless signal transmitter 11, the second wireless signal transmitter 12, the third wireless signal transmitter 13, etc. provided at two opposite positions of the pad body 1 can be ultrasonic transmitters. The wireless signal of the peripheral device 2 The signal receiver 21 can be an ultrasonic receiver.

As for the algorithm of the above steps (A04) and (A05), the coordinates of the first wireless signal transmitter 11, the second wireless signal transmitter 12 and the third wireless signal transmitter 13 are defined, and then based on the coordinates of the peripheral device 2 The distance formed by the coordinate positions of the wireless signal receiver 21 and the three wireless signal transmitters 11, 12, and 13 is used to calculate the coordinate position of the peripheral device 2, where: the above-mentioned pad 1 has a corner of one side of the The coordinates of one wireless signal transmitter 11 can be set to [0, 0], the coordinates of the second wireless signal transmitter 12 at the opposite corner can be set to [C, 0], and the third wireless signal in the center position can be set to [C, 0]. The coordinates of the transmitter 13 can be set to [D, 0], and the separation distance between the first wireless signal transmitter 11 and the second wireless signal transmitter 12 is [C], and the second wireless signal transmitter 12 and The separation distance between the third wireless signal transmitters 13 is [D]. The included angles formed between the first wireless signal transmitter 11 and the second wireless signal transmitter 12 and the wireless signal receiver 21 can be [R], and the vertical distance between the peripheral device 2 and the third wireless signal transmitter 13 is [H], and the first wireless signal transmitter 11 transmits a 40KHz wireless ultrasonic signal to the wireless signal receiver of the peripheral device 2 21. The required time [the transmission speed of the ultrasonic signal is 3.4 meters (m) per 0.01 seconds (sec)] can be converted into a distance of [B]. The second wireless signal transmitter 12 transmits a 40KHz wireless ultrasonic signal to The required time of the wireless signal receiver 21 of the peripheral device 2 [the transmission speed of the ultrasonic signal is 3.4 meters (m) per 0.01 seconds (sec)] can be converted into a distance of [A], and the third wireless signal transmitter 13. Transmit a 40KHz wireless ultrasonic signal to the wireless signal receiver of peripheral device 2. 21. The time required [the transmission speed of the ultrasonic signal is 3.4 meters (m) per 0.01 seconds (sec)] can be converted into a distance of [H ), then the control unit 32 of the default computer host 3 can calculate the coordinate position of the wireless signal receiver 21 of the peripheral device 2 as P [X, Y] using the algorithm of the triangulation positioning formula, where the algorithm can be : R=Acos〔(C ² +A ² -B ² /2AC)〕.

H=AsinR.

X=AcosR.

P[X,Y]=[(C-X),H].

The control unit 32 uses the algorithm of the trigonometric formula to calculate the distance between the wireless signal receiver 21 of the peripheral device 2 and the first wireless signal transmitter 11, the second wireless signal transmitter 12 and the third wireless signal transmitter 13. The relative position spacing distance of the first wireless signal transmitter 11, the second wireless signal transmitter 12 and the third wireless signal transmitter 11 of the peripheral device 2 can be accurately located on the pad body 1. Three wireless signal transmitters 13, etc., can transmit wireless signals stably within the wireless signal receiving range, and are not prone to intermittent or unstable wireless signals.

The first wireless signal transmitter 11, the second wireless signal transmitter 12 and the third wireless signal transmitter 13 provided on at least one side of the pad 1 can be wireless in a wide area. The linear ultrasonic signal transmitter controls the first wireless signal transmitter 11, the second wireless signal transmitter 12 and the third wireless signal transmitter 13 through the processing unit 15 to respectively transmit wireless ultrasonic signals over a wide area. At the same time, it is emitted to the receiving range of the wireless signal receiver 21 of the peripheral device 2, so that the wireless signal receiver 21 is in a wide-area angle [θ] interval {the wide-area angle [θ] can be between 180° and 200° °} Receiving the wireless ultrasonic signal is less likely to cause blind spots and is less likely to be affected by surrounding metal objects, etc., allowing the wireless signal receiver 21 to reliably receive the first wireless signal transmitter 11, the second wireless signal transmitter 12 and the third wireless signal. The wireless ultrasonic signal transmitted by the signal transmitter 13 is transmitted to the connection interface 31 of the default computer host 3 through the microprocessing unit 23 of the peripheral device 2 through the connection interface 22, and is transmitted to the control unit 32 through the connection interface 31. This is used for the control unit 32 to execute relevant operating applications according to the instructions of the signals received by the connection interface 31 to achieve the effect of actually executing the instruction signals transmitted by the peripheral device 2 .

The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Therefore, any simple modifications and equivalent structural changes made by using the description and drawings of the present invention should be included in the same way. Within the patent scope of the present invention, it is stated clearly.

In summary, the present invention can indeed achieve its effects and purposes when the desktop computer and its detection method for detecting computer peripheral equipment are actually applied and implemented. Therefore, the present invention is a research and development with excellent practicality and is in line with the requirements. The application requirements for an invention patent must be filed in accordance with the law. We hope that the review committee will approve this case as soon as possible to protect the inventor's hard work in research and development. If the review committee of the Jun Bureau has any doubts, please feel free to write a letter for instructions. The inventor will try his best to cooperate. Really feel the virtue.

1: Pad body

11:The first wireless signal transmitter

12:Second wireless signal transmitter

13: The third wireless signal transmitter

14:Transmission interface

15: Processing unit

2: Peripheral equipment

21:Wireless signal receiver

22:Connection interface

23:Microprocessing unit

3: Computer host

31:Connection interface

32:Control unit

Claims (3)

A desk pad detection method for detecting computer peripheral equipment includes a pad body and peripheral equipment, and is performed according to the following steps: (A01) The peripheral equipment slides and moves on the pad body, and the wireless signal receiver is The wide-area angle [θ] receives external wireless ultrasonic signals; (A02) The pad is equipped with three wireless signal transmitters at two opposite positions and the central position, respectively transmitting 40KHz pulse wireless ultrasonic signals to the outside. The peripheral equipment The wireless signal receiver is equipped with a wireless signal receiver that receives the 40KHz pulse wireless ultrasonic signals emitted by the three wireless signal transmitters; (A03) The pad system is equipped with the three wide-angle wireless signal transmitters on one side of the periphery, and the three wireless signal transmitters are The wireless signal transmitter emits wireless ultrasonic signals over a wide area, and the wireless signal receiver of the peripheral device emits wireless ultrasonic signals over a wide area, and the wireless signal receiver of the peripheral device emits wireless ultrasonic signals over a wide area. If the wide-area angle [θ] receives the wireless ultrasonic signal in the interval, the wide-area angle [θ] can be between 180° and 200° for the wireless signal receiver of the peripheral device to receive the wireless ultrasound signal; (A04 ) The wireless signal received by the wireless signal receiver of the peripheral device is converted into a data signal using a microprocessing unit, and then transmitted to the connection interface of the default computer host through the connection interface provided by the wireless device, and the default The control unit of the computer host receives the data signal received by the connection interface; (A05) The control unit of the default computer host uses an algorithm to calculate the three wireless signal transmissions of the wireless signal receiver of the peripheral device and the pad. between devices The formed distance between the four points; (A06) The control unit uses an algorithm to calculate the coordinate information between the location of the peripheral device and the three wireless signal receivers based on the distance between the four points. The table mat detection method for detecting computer peripheral equipment as described in claim 1, wherein the mat system in step (A02) is provided with the three wireless signal transmitters at two opposite corner positions and a central position on one side of the periphery. , and the pad body is further provided with a transmission interface for transmitting signals and a processing unit that is electrically connected to the three wireless signal transmitters and the transmission interface respectively. The processing unit controls the transmission interface and is connected to the preset in a wired or wireless manner. A computer host is provided, and the default computer host is provided with a connection interface for wired or wireless signals transmitted by the transmission interface, and the peripheral device is provided with a connection interface for transmitting signals with the connection interface, and the default computer host is further configured If there is a control unit that receives the data signal of the connection interface and processes it, then the wireless ultrasonic signal is transmitted between the connection interface, the transmission interface and the connection interface in a wired or wireless manner respectively. The table mat detection method for detecting computer peripheral equipment as described in claim 1, wherein the coordinates of the first wireless signal transmitter located at a corner of one side of the mat body are set to [0, 0], and the coordinates of the other wireless signal transmitter are set to [0, 0]. The coordinates of the second wireless signal transmitter located in the opposite corner are set to [C, 0], the coordinates of the third wireless signal transmitter located in the center are set to [D, 0], and the first wireless signal transmitter is set to [D, 0]. The separation distance between the signal transmitter and the second wireless signal transmitter is [C], the separation distance between the second wireless signal transmitter and the third wireless signal transmitter is [D], and the third wireless signal transmitter is [D]. The included angle formed between a wireless signal transmitter, the second wireless signal transmitter and the wireless signal receiver can be [R] , and the vertical distance between the peripheral device and the third wireless signal transmitter is [H], and the time required for the first wireless signal transmitter to transmit 40KHz wireless ultrasonic waves to the wireless signal receiver of the peripheral device [exceeds The transmission speed of the sound wave signal is 3.4 meters (m) per 0.01 seconds (sec), which is converted into a distance of [B]. The second wireless signal transmitter transmits 40KHz wireless ultrasonic waves to the wireless signal receiver of the peripheral device. The required time [the transmission speed of the ultrasonic signal is 3.4 meters (m) per 0.01 seconds (sec)] is converted into a distance of [A], and the third wireless signal transmitter transmits 40KHz wireless ultrasonic waves to the peripheral device The time required for the wireless signal receiver [the transmission speed of the ultrasonic signal is 3.4 meters (m) per 0.01 seconds (sec)] is converted into a distance of [H], then the control unit of the default computer host is used The algorithm of the triangulation positioning formula calculates the coordinate position of the wireless signal receiver of the peripheral device as P [X, Y]. The algorithm includes: R=Acos [(C2+A2-B2/2AC)]; H=AsinR; X=AcosR; and P[X,Y]=[(C-X),H].

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