TW594553B - Pointer device having acceleration sensor - Google Patents

Abstract

The present invention is a pointer device having acceleration sensor, which comprises an X-direction acceleration sensor, a Y-direction acceleration sensor, a Z-direction acceleration sensor; a data processing unit connected to the sensors respectively; a transmission interface connected to the data processing unit and the exterior. The acceleration sensors in the three-direction dimension sense the moving state of the pointer device and obtain the acceleration data by using two symmetric inductors and a magnetic core. The sensed acceleration data sensed by the acceleration sensor in the three directions are processed by the data processing unit, so as to obtain the shift and stop state data of the pointer device.

Description

594553

V. Description of the invention (1) [Application field of the invention] Especially an acceleration sensor The present invention relates to an indicator device, an indicator device of a detector, such as a mouse and the like. [Background of the invention] The index devices on the market of Mehe, such as slide-mechanical-optical type, and the other is photoelectric < A 'force has two configurations with A ^ f ^ ^ ^ as the first private mechanical-optical slide The mouse is a species that is not daring to see, and it uses retro pairing, Fen, M ^ to move the two grating disks, and once you get ten points, you can get the displacement of the mouse. Pay the deposit + 卩 伯 e ^ B ^. S J 铩 's address value court species' characteristics are simple in structure and 4 Beg cheap' However, Li Wei was greeted by the sixth session of the Communist Party of China and also deer 1 Μ / The problem of taking books is that the shaft of the grating disk easily accumulates dust and affects its sensitivity, which leads to its performance.

The light-pen type mouse is better than the I machine 'Gu rh _V 1, JL brake fish. "The dust accumulation of mechanical and electrical mouse is easy to use, and it uses the texture of the desktop to spread the salt ^ ^ -Γ-Z; r ^ ^ 1 find the imaging on the whole column, the movement of the image can be paid to the movement of the mouse, Jieyou # 2 # il · 佶, l ^ Also P, the amount of breast milk displacement, and then converted to swim Address value. This borrowed pwwi on + # $ 主 -0 ~ This edge provides better performance, however, the price # ^ β β milk has high requirements for the texture of the desktop, that is, 'hang' ^ products should be flat, elegant "R fl0 〇 ^ pad to provide a clear texture. [Objective and summary of the invention] In view of the above-mentioned conventional technology, the purpose of the present invention is to provide an indicator with an acceleration sensor. , Γ-necked device, such as a mouse and other devices, can not be subject to the problem of dust accumulation in Ping Shiba n J Xiaoyue. The index device can provide a kind of acceleration at 3 degrees 2 ^ ^ ^ ^ Of the sensor, and the acceleration generated by the movement of the index device in the three-dimensional space _ 1?

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594553 V. Description of Invention (2) Subject matter. According to the technology disclosed by the present invention, the present invention provides a device with acceleration ί 1 ::: 払 払 device 'It contains an x-direction plus arrest sensor, -Y-direction k-sensor , A Z-direction acceleration sensor, a ": ζ7 /; " Λ ^ ^^ «;; will be X heart force: ί; = Γ ~ do not move to the speed sensor! y. α and σ t-degree sensor and z-direction feed processing unit force: ;; = ,! The acceleration data with 2 dimensionality is transmitted to the velocity data to calculate "Zhuang; the material processing unit according to the X, Υ and Z dimensionality plus unit and the speed and displacement of the wheel interface ^ ^ data. Data processing information processing equipment.妾 'can transfer the processed data to the capital invention to use data processing for processing, you can get the acceleration of the index, different degrees of acceleration data plus acceleration sensors, can = ,, and move poor materials. This invention each The second inductance unit of two dimensions is composed of the first inductance unit and the first inductance unit attached to the substrate; = The first inductance is fixed to the -solid $ board of the -core to the core symmetry, That is, the change in the inductance of the inductor phase in the West Inductance Unit, and then a corresponding one can be obtained when the two and two devices are moved. The operation of the index device is converted into measurable data. The specific method, that is, the present invention provides a measuring inductor, when the inductance changes, the oscillating frequency and the oscillation of the capacitor are formed. As long as the oscillating frequency is known, the spreading frequency will change. Operation of the indicator device . Ρ be 'the change amount of the inductance, also

Page 5 594553 V. Description of the invention (3) About the features and implementation of the present invention, the best embodiment will be described in detail with reference to the drawings: [Detailed description of the invention] Please refer to Figure 1, the invention has a sense of acceleration A block diagram of the structure of the indicator device of the detector. The indicator device may be a mouse. The indicator device i 0 of the present invention includes an X-direction acceleration sensor 2 0, a Y-direction acceleration sensor 3 〇, and a z-direction acceleration. The sensor 40, the data processing unit 50, and the transmission interface 60. It can be seen from FIG. 1 that the X-direction acceleration sensor 20, the Y-direction acceleration sensor 30, and the Z-direction acceleration sensor 40 are respectively connected to the data processing unit 50, and each of the X-direction acceleration sensors is sensed. Device 20, the acceleration data of γ-direction acceleration sensing is 30 and the Z-direction acceleration sensing is 40, and the acceleration data of X, γ and z-direction acceleration data are transmitted to the data processing unit 5 for processing; the data processing unit 5 〇 Calculate the speed and displacement of the index device based on X, Y, and Z-dimension acceleration data. The data processing unit 50 is also connected to the transmission interface 60. The transmission interface 60 is an external connection device of the index device, and is responsible for transmitting the data processed by the data processing unit 50 to the information processing device γ. As a side note, since the general index device only needs to process the two-dimensional data, the Z-direction acceleration sensor 40 can be selected according to the X design. It is the same as below. Please refer to FIG. 2 for the structure of the acceleration sensor of the present invention. Each acceleration sensor includes a fixed plate 8. , Fixed on ,: on, spring through 90 ′, mounted on the end of the spring, magnetic inductor 以, the inductor 110 and inductor 120 on the plate 130, etc. Yi Yu, Ba Yuanji Inductors U0 and 120 are symmetrical structures, which can be printed on the printed circuit board.

594553 V. Description of the invention (4) Formula manufacturing. The main mode of operation of the acceleration sensor is described as follows: When the device moves, the acceleration will change. The magnetic core m at the end will generate the women's clothing with the inductors 11 and 12, and the amount will change. By calculating ^ α = Huali / 卩 of the two inductors, the movement of the indicator device can be detected. Figure 3 provides an embodiment for detecting the change in inductance. Figure 3: Inductor 110 and the inverse 1 composed of M0S1 40 and 150 and capacitors 160 and 170 are combined to form an oscillating circuit. When the inductance value of the inductor 丨 丨 〇 changes, the output frequency of this exhaust circuit is kept ( F 0ut) will change. In other words, "As long as the change in this frequency is detected, the change amount of the inductance 1 丨 0 can be measured, and the relative position change of the inductance 11 〇 and the magnetic core 丨 〇 〇 can also be known. For the inductor 1 2 0, its relative position and inductor 丨 丨 〇 are complementary, that is, 'When the magnetic core 1 00 is close to the inductance 丨 2 〇, the magnetic core 丨 〇 0 is also far away from the inductor 1 1 〇', and vice versa, When the magnetic core 1 00 is far away from the inductor 2 0, the magnetic core 1 00 is also close to the stroke 1 1 0 (refer to FIG. 2). This complementary relationship can be used as a tool for error correction. In addition, in order to prevent the two oscillating circuits from affecting each other, different capacitors can be used to form oscillating circuits with different oscillating frequencies. The specific movement status of the index device is achieved by the data processing unit 50 in the first figure, that is, the data processing unit 50 analyzes the acceleration data obtained, analyzes the oscillation data and detects the stop state of the index device 10, and stops State acceleration data, and then the acceleration data obtained by subtracting each acceleration data from the acceleration data of the stopped state is the acceleration of the movement of the index device 10, and the subtracted acceleration is used to calculate the movement of the index device 10. Speed and value shift.

594553 V. Description of the invention (5) Please continue to refer to FIG. 4 for a flowchart of processing the sensing data of the present invention. The process includes at least the following steps: first, the indicator device is at a standstill state (step 410), and then, data is retrieved (step 420), that is, the indicator device is stationary and the current acceleration value is obtained. Next, determine whether it is stationary (step 43 0). If it is stationary, determine that the displacement is zero (step 44 0), and enter step 42 0 again to recalculate the movement of the index device; if it is not stationary, then It is further determined whether the acceleration data of the stationary state of the index device is obtained (step 45 0), and if there is acceleration data of the stationary state of the index device, the displacement amount of the index device is calculated (step 4 60), that is, the index device is obtained If the acceleration of the stationary state is subtracted from the current acceleration, the displacement amount can be encoded and transmitted (step 470), and then repeat the action again to enter step 4 2 0; if the stationary state data of the indicator device is not obtained, then The static acceleration and the current acceleration data of the pointing device are acquired again (step 4 2 0). Through such continuous loop calculation, the dynamic motion data of the index device can be obtained continuously. It must be noted that the acceleration data mentioned above are acceleration data of a single dimension. The data processing unit 50 in Fig. 1 obtains the overall acceleration data according to the acceleration data of each dimension. Please refer to FIG. 5. The flow chart of obtaining sensing data according to the present invention includes the following steps. First, two inductance values are obtained from two inductors of the sensor, first compensated, and then subtracted to calculate. The initial acceleration value (step 510), and then the result is queued into the data (such as 16-bit) (step 5 2 0). Then, analyze the oscillation condition to obtain the oscillation period (step 530), if there is no new oscillation data (step 540), determine the acceleration

594553 V. Description of the invention (6) is zero (step 5 50); if there is new oscillation data, calculate the average value during one week, and then subtract the acceleration data in the static state to calculate the new acceleration data. (Step 5 6 0). Among them, the operation method is the same whether it is X, Y or Z. In Figure 5, in the process of obtaining the sensing data, the acquisition of the oscillation period becomes the base point of the acceleration comparison. Its main purpose is to provide the oscillation period. Please refer to FIG. 6. The flowchart of obtaining the oscillating period of the present invention includes the following steps: first, the data in the queue is divided into two groups by the average of the maximum acceleration data and the minimum acceleration data (step 610), and then, Calculate the data above and below the average (step 6 2 0); then, determine whether the data above and below the average are aggregated (step 6 3 0) and the period is within a reasonable range (step 6 4 0 ), And it has symmetry (step 650), it can be determined that what is detected is a complete oscillation cycle (step 660). Conversely, if the data above or below the average value are not aggregated in step 6 3 0, recalculate it again and return to step 6 1 0; Similarly, if the period is not within a reasonable range in step 6 40, Return to step 6 1 0; if the average and above data are not symmetrical in step 6 50, return to step 6 1 0. In addition to the acceleration calculation in motion, the stop motion determination of the index device is also important. Please refer to FIG. 7, a flowchart for determining a stop state of an indicator device according to the present invention includes the following steps: First, if there is already an acceleration reference material in a stopped state, and the minimum acceleration and the acceleration reference value are close (step 7 1), Preliminary judgment

Page 9 594553 1. Description of the invention (7) = The heart mark device is stopped, and the acceleration value of the stopped state is replaced with the minimum acceleration data (step 720). If the minimum acceleration value is greater than the acceleration test value, the original acceleration reference value is the acceleration in the stopped state = Ling test value, that is, the acceleration reference value does not change (step 73). Next, considering noise and vibration, if three consecutive measured accelerations are equal (step 740), it is determined that the index device is stopped, and the acceleration value in the stopped state is replaced by the current + (step 75), and If the returned acceleration values are not equal, the stationary state 710 is instructed to be determined again. Centroid (step '7 6 0), sub-return step [effect of the invention] According to the disclosure disclosed in the present invention, the indicator device with acceleration can be controlled only by the movement of the indicator device itself, which may need to take into account the texture of the desktop and dust, etc. Question ^ σ processing equipment cursor, although the present invention is better than the foregoing, 'used to limit the invention of the scholar, the heart is exposed as above, but within the spirit and scope that it is not, it can be done a little without departing from the invention The scope of patent protection must be based on this statement; the book: the: Run *, so the inventor shall prevail. As defined by the scope of patent application

Page 594553 Brief description of the diagram. Figure 1 is a block diagram of the structure of the index device with an acceleration sensor according to the present invention. Figure 2 is a schematic diagram of the structure of the acceleration sensor according to the present invention. Figure 3 is the sensing of the present invention. Figure 4 is a flowchart of processing the sensing data according to the present invention; Figure 5 is a flowchart of acquiring sensing data according to the present invention; Figure 6 is a flowchart of obtaining an oscillation cycle according to the present invention; and Figure 7 is this Inventive indicator device stop state determination flowchart

[Illustration of Symbols] 10 Index device 20 X-direction acceleration sensor 30 Y-direction acceleration sensor 40 Z-direction acceleration sensor 50 Data processing unit 60 Transmission interface 70 Information processing equipment 80 Fixing plate 90 Spring 100 Core 110 Inductor 120 Inductor 130 Insulating substrate 140 MOS 150 MOS m

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Claims (1)

594553 VI. Application for patent scope 1. An index device with an acceleration sensor, at least including: an X-direction acceleration sensor for detecting and obtaining an X-direction acceleration of one of the index devices; a Y-direction An acceleration sensor for detecting and acquiring a Y-direction acceleration of the index device; a data processing unit coupled to the X-direction acceleration sensor and the Y-direction acceleration sensor, and according to the X-direction Degree acceleration and the Y-direction acceleration, calculate the speed and displacement of the pointing device, and adjust the position based on the starting and stopping states of the pointing device; and a transmission interface, coupled to the data processing unit, to the data The speed and displacement of the index device calculated by the processing unit are sent to an information processing device. · 2. The index device with an acceleration sensor as described in item 1 of the scope of patent application, the index device is a mouse. 3. The index device with an acceleration sensor as described in item 1 of the scope of the patent application, the X-direction acceleration sensor further includes: a first inductance unit and a second inductance unit mounted on a substrate, And a magnetic core tied to a spring and fixed to a fixed plate; the first inductance unit and the second inductance unit are symmetrically arranged with the magnetic core as the center, and are separated from the magnetic core 彳 _ a fixed Distance, when the indicator device moves, the magnetic core is displaced relative to the first inductance unit and the second inductance unit, and the first inductance unit and the second inductance unit each generate an inductance change, the X The directional acceleration sensor can send the change in inductance to the data processing OXJ early. Page 13 594553 6. Scope of patent application 4. The index device with an acceleration sensor as described in item 1 of the scope of patent application, the Y-direction acceleration sensor further includes: a first on a substrate The inductance unit and a second inductance unit are connected to a spring and fixed to a magnetic core of a fixed plate; the first inductance unit and the second inductance unit are symmetrically arranged with the magnetic core as the center, and The magnetic core is separated by a fixed distance. When the indicator device moves, the magnetic core is displaced relative to the first inductance unit and the second inductance unit, and the first inductance unit and the second inductance unit are each generated. An inductance change amount, the Y-direction acceleration sensor can reach the data processing X3X3 early in the process. 5. The index device with an acceleration sensor as described in item 1 of the scope of the patent application, further comprising a Z-direction acceleration sensor coupled to the data processing unit for detecting and acquiring the index device. A Z-direction acceleration, the Z-direction. 6. The index device with an acceleration sensor as described in item 5 of the scope of patent application, the Z-direction acceleration sensor further includes: a first inductance unit and a second inductance unit mounted on a substrate, And a magnetic core tied to a spring and fixed to a fixed plate; the first inductance unit and the second inductance unit are symmetrically arranged with the magnetic core as the center, and a fixed distance from the magnetic core, When the indicator device moves, the magnetic core is displaced relative to the first inductance unit and the second inductance unit, and the first inductance unit and the second inductance unit each generate an inductance change amount, the Z direction The acceleration sensor can send the change in inductance to the data processing port early. Page 14 594553 6. Scope of patent application 7. The index device with an acceleration sensor as described in item 3 of the scope of patent application, the first inductance unit and the second inductance unit include an oscillator for The inductance change amount is converted into an oscillation frequency output and sent to the data processing unit. 8. The index device with an acceleration sensor as described in item 4 of the scope of the patent application, the first inductance unit and the second inductance unit include an oscillator for converting the change in inductance into an oscillation frequency Export and send to the tributary material to process the early yuan. 9. According to the index device with an acceleration sensor described in item 6 of the scope of the patent application, the first inductance unit and the second inductance unit include an oscillator for converting the change in inductance into an oscillation frequency Output and send to the data processing unit. 10. The index device with an acceleration sensor as described in item 1 of the scope of the patent application, the data processing unit is based on one of the X-direction initial acceleration data transmitted by the X-direction acceleration sensor, and the X One of the X-direction current acceleration data transmitted while the directional acceleration sensor is moving is subtracted to obtain an X-dimensional motion acceleration data. 1 1. The index device with an acceleration sensor as described in item 1 of the scope of patent application, the data processing unit is based on one of the Y-direction initial acceleration data transmitted by the Y-direction acceleration sensor, and the Y One of the Y-dimension current acceleration data transmitted when the directional acceleration sensor moves is subtracted to obtain a Y-dimension motion acceleration data. 1 2. According to the index device with an acceleration sensor described in item 5 of the scope of the patent application, the data processing unit is transmitted according to the Z-direction acceleration sensor. Page 15 594553 VI. One of the Z-direction initial acceleration data and the Z-direction current acceleration data transmitted when the Z-direction acceleration sensor moves are subtracted to obtain a Z-direction motion acceleration. data. 1 3. According to the index device with an acceleration sensor described in item 10 or 11 of the scope of patent application, the data processing unit calculates a motion based on the X-direction motion acceleration data and the Y-direction motion acceleration data. Acceleration data. 1 4. According to the index device with an acceleration sensor as described in item 10, 11 or 12 of the scope of the patent application, the data processing unit is based on the data of the x-direction motion acceleration and the k-direction motion acceleration. The data and the Z-dimension motion acceleration data are used to calculate a motion acceleration data. Page 16