Trackball and bottom double sensor composite control mouse

Abstract

The application relates to the technical field of mice, in particular to a trackball and bottom double-SENSOR composite control mouse, which comprises an upper mouse shell, a lower mouse shell is installed at the bottom of the upper mouse shell, an installation groove is arranged in the inner cavity of the lower mouse shell, an installation table is fixedly connected in the inner cavity of the installation groove, a trackball sensing module is installed at the top of the installation table, and an installation plate is bolted at the top of the installation table. The trackball and the desktop sensing module are double-sensing units, three working modes of pure trackball, desktop sliding alone and common use are supported, the defects that the traditional trackball mouse cannot be translated and the ordinary photoelectric mouse is difficult to accurately fine-tune are effectively overcome, users can use the trackball high-precision control in a small space fixed station, and the sliding mode is switched in a large desktop scene to realize rapid cross-screen, and the mouse can cover office, design, e-sports, industrial control and other needs, and the universality and adaptation ability are significantly improved.

Description

Technical Field

[0001] This invention relates to the field of mouse technology, specifically to a trackball and bottom-mounted dual sensor composite control mouse. Background Technology

[0002] A trackball mouse is a computer input device that controls the movement of the cursor on the screen by flicking an exposed ball with your finger. The trackball itself remains stationary, relying solely on the ball's movement to sense direction and speed, converting these physical movements into cursor displacement signals. Unlike traditional mice that require the entire hand to move across the desktop, trackball mice significantly reduce wrist and arm movements, thus saving desktop space and reducing the risk of repetitive strain injuries. They are particularly suitable for users who work long hours, do graphic design, or suffer from "mouse hand" (carpal tunnel syndrome).

[0003] Current trackball mice rely solely on a single sensor within the built-in trackball for cursor control. Users can only manipulate the cursor by moving the ball, unlike traditional mice which allow for full-scale movement across the desktop. This results in inefficient cross-screen or large-area movement, limiting their usability. Traditional optical mice, on the other hand, depend entirely on a single optical sensor on the bottom. While they support free movement, they lack precision in precise positioning and fine-tuning. Furthermore, prolonged use requires frequent wrist movements, leading to fatigue and a poor ergonomic experience. Both types of products currently on the market employ a single-sensor mode, making it difficult to simultaneously meet the two core needs of free desktop movement and high-precision trackball control. This functional fragmentation and limited adaptability not only restrict operational flexibility but also force users to switch between different devices, increasing usage costs and creating a disjointed experience. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides a composite control mouse combining a trackball and bottom-mounted dual sensors. This effectively solves the problems of existing trackball mice relying solely on a built-in ball sensor to control the cursor, which cannot move the cursor horizontally on the desktop and has low efficiency for large-scale movements; and traditional optical mice, while allowing free movement, suffer from poor precision control and are prone to wrist fatigue. Both rely on a single sensing mode, making it difficult to balance high-precision positioning and flexible movement, resulting in fragmented usage scenarios and limited user experience.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a trackball and bottom-mounted dual-sensor composite control mouse, comprising an upper mouse shell, a lower mouse shell mounted on the bottom of the upper mouse shell, a mounting groove in the inner cavity of the lower mouse shell, a mounting platform fixedly connected to the inner cavity of the mounting groove, a trackball sensor module mounted on the top of the mounting platform, a mounting plate bolted to the top of the mounting platform, a positioning block fixedly connected to the top of the mounting plate, a fixing groove in the top of the positioning block, a trackball body connected to the inner cavity of the fixing groove, a positioning groove in the bottom of the lower mouse shell, a desktop sensor module mounted in the inner cavity of the positioning groove, and a main control circuit board mounted in the inner cavity of the mounting groove. The trackball sensor module and the desktop sensor module are electrically connected to the main control circuit board.

[0006] Furthermore, a main control chip is connected to the top of the main control circuit board, and a first signal receiving module is installed in the inner cavity of the mounting slot. The first signal receiving module is electrically connected to the main control chip and the trackball sensing module.

[0007] Furthermore, a second signal receiving module is installed in the inner cavity of the mounting slot, and the second signal receiving module is electrically connected to the main control chip and the desktop sensing module.

[0008] Furthermore, a power supply module is connected to the inner side of the mounting slot, a battery compartment is installed in the inner cavity of the mounting slot, and a communication module is installed on the inner side of the mounting slot.

[0009] Furthermore, a positioning plate is connected to the bottom of the lower mouse shell, and the battery compartment is electrically connected to the power supply module.

[0010] Furthermore, a guide cavity is provided on one side of the upper mouse shell, and a button component is connected inside the guide cavity.

[0011] Furthermore, a signal sensor is installed inside the mounting slot. The signal sensor is connected to the button component, the button component is electrically connected to the main control circuit board, and the signal sensor is electrically connected to the main control chip.

[0012] Furthermore, the top of the upper mouse shell is provided with an arc surface, and a mounting cavity is provided on one side of the arc surface, the mounting cavity being in contact with the trackball body.

[0013] Furthermore, a wiring hole is provided on the front side of the upper mouse housing, and several threaded holes are provided on the opposite sides of the upper and lower mouse housings.

[0014] Beneficial effects The technical solution provided by this invention has the following advantages compared with the known prior art: 1. This solution uses a dual-sensor unit consisting of a trackball and a desktop sensor module to support three working modes: pure trackball, desktop sliding, and combined use. This effectively overcomes the shortcomings of traditional trackball mice, which cannot pan, and ordinary optical mice, which are difficult to finely adjust. Users can use the trackball for high-precision control in small spaces with fixed workstations, and switch to sliding mode in large desktop scenarios to achieve quick cross-screen operation. This solution covers the needs of office work, design, e-sports, industrial control, and other applications, significantly improving versatility and adaptability.

[0015] 2. The trackball module specializes in high-precision, small-amplitude cursor fine-tuning, suitable for scenarios such as drawing, modeling, and precise clicking; the desktop sensor module supports wide-range, high-speed cross-screen movement, meeting common operations such as multi-window switching and file dragging. The two sensors operate independently without interference, and can either exert their advantages individually or achieve displacement superposition through signal fusion, greatly improving operational efficiency and shortening positioning time while ensuring accuracy.

[0016] 3. Traditional mice rely on the movement of the wrist and arm as a whole, which can easily lead to mouse hand or muscle strain. This technical solution supports flexible switching to trackball mode, which can be controlled by simply flicking the fingers, greatly reducing the movement and stress on the large joints of the hand. At the same time, the shape of the mouse accommodates both control postures, conforms to natural grip habits, and significantly improves the comfort of long-term use.

[0017] 4. The two sets of sensing modules adopt independent optical paths, independent power supplies and independent signal acquisition circuits, and are combined with the differential shielded wiring design of the main control board to eliminate optical path crosstalk and signal interference, ensure accurate displacement data and stable transmission, effectively avoid problems such as cursor drift, false triggering or positioning failure, and ensure long-term operational reliability.

[0018] 5. The DPI, sensitivity, and other parameters of the trackball and bottom sensor can be set and stored offline to adapt to different user habits. With the one-click mode switching function, you can quickly switch between control modes without additional software or peripherals, balancing flexibility and ease of use to meet diverse human-computer interaction needs.

[0019] 6. While maintaining the size and cost of a conventional mouse, this solution achieves a compact installation of dual-sensor mode. The structure is reasonable, the assembly is simple, and it is conducive to mass production. This solution directly addresses the pain point of the fragmented functions of existing products, fills the market gap of high-precision and free-moving integrated mice, and has both practical value and commercial competitiveness. It is suitable for a wide range of people and has broad prospects for promotion. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0021] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional schematic diagram of the overall structure of the present invention from a bottom view. Figure 3 This is a three-dimensional schematic diagram of the disassembled upper and lower mouse housing structures of the present invention; Figure 4 This is a three-dimensional schematic diagram of the lower mouse housing structure of the present invention; Figure 5 This is a three-dimensional schematic diagram of the mounting platform structure of the present invention.

[0022] Reference numerals: 1. Upper mouse shell; 2. Lower mouse shell; 3. Mounting slot; 4. Mounting platform; 5. Mounting plate; 6. Trackball sensor module; 7. Positioning block; 8. Fixing slot; 9. Trackball body; 10. Positioning slot; 11. Desktop sensor module; 12. Main control circuit board; 13. Main control chip; 14. First signal receiving module; 15. Second signal receiving module; 16. Power supply module; 17. Battery compartment; 18. Positioning plate; 19. Curved surface; 20. Signal sensor; 21. Guide cavity; 22. Button component; 23. Wiring hole; 24. Threaded hole; 25. Mounting cavity; 26. Communication module. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0024] The present invention will be further described below with reference to embodiments.

[0025] See attached document Figure 1-5A trackball and bottom-mounted dual-sensor composite control mouse includes an upper mouse shell 1, a lower mouse shell 2 mounted on the bottom of the upper mouse shell 1, a mounting groove 3 in the inner cavity of the lower mouse shell 2, a mounting platform 4 fixedly connected to the inner cavity of the mounting groove 3, a trackball sensing module 6 mounted on the top of the mounting platform 4, the trackball sensing module 6 being independently located below the trackball, equipped with a dedicated infrared light-emitting component, an optical sensing chip and an independent optical path lens to form a closed independent sensing optical path, specifically for collecting the X and Y axis displacement signals generated by the trackball rolling, a mounting plate 5 being bolted to the top of the mounting platform 4, a positioning block 7 being fixedly connected to the top of the mounting plate 5, and a fixing groove 8 being opened on the top of the positioning block 7.

[0026] See attached document Figure 1-5 The trackball body 9 is connected to the inner cavity of the fixing slot 8. A positioning slot 10 is provided on the bottom of the lower mouse shell 2, and the positioning slot 10 is embedded in the lower mouse shell 2. The desktop sensing module 11 is installed in the inner cavity of the positioning slot 10. The desktop sensing module 11 is independently installed on the bottom surface of the lower mouse shell 2, and is equipped with an independent light-transmitting window and a dustproof lens, forming an independent sensing light path. It is physically isolated from the trackball sensing light path and does not interfere with it. It is used to collect the displacement signal of the mouse sliding on the contact surface. The main control circuit board 12, the trackball sensing module 6 and the desktop sensing module are installed in the inner cavity of the mounting slot 3. 11 is electrically connected to the main control circuit board 12. The main control circuit board 12 has built-in dual-channel signal processing logic, which can control either trackball sensor module 6 and desktop sensor module 11 to work independently or control the two sensor units to work together simultaneously. The main control circuit board 12 can independently adjust the DPI values ​​of trackball sensor module 6 and bottom desktop sensor module 11, and the adjustment parameters can be stored in the storage unit of the main control circuit board 12 to realize offline parameter memory. The main control circuit board 12 has built-in anti-drift calibration logic, which can automatically shield the false trigger signals of the dual sensor modules when the mouse is stationary, so as to realize the cursor is zeroed when stationary.

[0027] See attached document Figure 1-4The top of the main control circuit board 12 is connected to a main control chip 13, which is an MCU main control chip. The MCU main control chip can simultaneously receive displacement signals transmitted from the trackball sensing module 6 and the bottom desktop sensing module 11, and perform independent analysis, noise reduction, and calibration processing on the dual signals. A first signal receiving module 14 is installed in the inner cavity of the mounting slot 3. The first signal receiving module 14 is electrically connected to the main control chip 13 and the trackball sensing module 6. A second signal receiving module 15 is installed in the inner cavity of the mounting slot 3. The second signal receiving module 15 is electrically connected to the main control chip 13 and the desktop sensing module 11, thereby transmitting the first signal... The receiving module 14 and the second signal receiving module 15 are used to enhance the signal connection with the main control chip 13. The first signal receiving module 14 and the second signal receiving module 15 are key components for capturing and processing external wireless or wired signals. They typically integrate circuit units such as antenna interfaces, filters, low-noise amplifiers (LNAs), and analog-to-digital converters. They can convert the received analog signals into digital signals for further decoding and analysis by the processor or baseband unit inside the chip. The inner side of the mounting slot 3 is connected to the power supply module 16, and the inner cavity of the mounting slot 3 is equipped with a battery compartment 17, which can be equipped with a rechargeable lithium battery for power supply.

[0028] See attached document Figure 2-5 The inner side of the mounting slot 3 is equipped with a communication module 26. The power supply module 16 is either a wired power supply module or a wireless power supply module. The wireless power supply module includes a rechargeable lithium battery and a wireless charging receiver. The communication module 26 is one or more of a USB wired communication module, a 2.4G wireless communication module, and a Bluetooth communication module. The bottom of the lower mouse shell 2 is connected to a positioning plate 18. The battery compartment 17 is electrically connected to the power supply module 16. A guide cavity 21 is opened on one side of the upper mouse shell 1. A button component 22 is connected inside the guide cavity 21. A signal sensor 20 is installed inside the mounting slot 3. The signal sensor 20 is connected to the button component 22. The button component 22 is electrically connected to the main control circuit board 12. The signal sensor 20 is electrically connected to the main control chip 13. The power supply module 16 is electrically connected to the trackball sensor module 6, the desktop sensor module 11, the first signal receiving module 14, the second signal receiving module 15, and the signal sensor 20 to provide energy for use. The top of the upper mouse shell 1 is provided with an arc surface 19.

[0029] See attached document Figure 1-5A mounting cavity 25 is provided on one side of the curved surface 19. The mounting cavity 25 contacts the trackball body 9. A wiring hole 23 is provided on the front side of the upper mouse shell 1 to facilitate the connection of an external USB cable. Several threaded holes 24 are provided on the opposite sides of the upper mouse shell 1 and the lower mouse shell 2, so that the upper mouse shell 1 and the lower mouse shell 2 can be bolted together through the threaded holes 24. The upper mouse shell 1 and the lower mouse shell 2 adopt an ergonomic structure, which is compatible with the sliding control posture of the trackball body 9 and the overall desktop sliding control posture of the mouse.

[0030] The above technical structure achieves the following: 1. The mouse features a dual-sensor layout structure that integrates a trackball sensor module 6 and a bottom desktop sensor module 11 within the same mouse shell, along with a mechanical assembly structure that ensures independent optical path isolation, dustproof limiting, and non-interference between the two sensors.

[0031] 2. The mouse is an integrated ergonomic design that combines trackball control and desktop sliding control, with a fixed internal support structure, mode switching button layout, and hardware connection structure.

[0032] 3. The overall circuit architecture of dual sensors with independent power supply, independent signal loop, and parallel acquisition and processing of dual displacement signals by the main controller, as well as differential shielded wiring and anti-interference circuit design scheme.

[0033] 4. Circuit and control structure for independent calibration of dual-sensor module parameters, offline storage of configuration data, and retention of memory after power failure.

[0034] 5. Firmware control logic and operation method for three working modes: trackball body 9 single mode, bottom desktop single mode, and dual sensor fusion linkage.

[0035] 6. A dedicated control algorithm for synchronous analysis, filtering and noise reduction, difference correction, and weighted superposition and fusion output of dual-channel displacement signals.

[0036] 7. The sensitivity and DPI parameters of the two sensors can be adjusted independently, as well as the control algorithms for static anti-drift, anti-false triggering, and automatic cursor zeroing.

[0037] 8. The dual sensors operate independently and serve as redundant backups for each other. The mouse combines high-precision fixed-point fine operation with a wide range of fast cursor movement in a single device. It features a dual-sensor configuration with one trackball sensor and one bottom sensor. The mouse hardware is equipped with a trackball sensor module of 6 units and a bottom displacement sensor unit (desktop sensor module 11).

[0038] Specifically, the mounting slot 3 inside the lower mouse shell 2 houses both the dedicated trackball sensor module 6 (for the trackball body 9) and the bottom desktop sensor module 11. The two sensors are independent and physically separated, each equipped with an independent optical path structure, achieving optical path isolation and effectively avoiding signal crosstalk and interference. The upper mouse shell 1 and lower mouse shell 2 adopt a composite ergonomic structure, accommodating both finger-operated trackball point control and overall desktop sliding control. A dedicated mode switching button component 22 is electrically connected to the main control circuit board 12 to achieve quick switching of working modes. The hardware circuit adopts a dual-sensor independent power supply and independent signal acquisition and transmission design, with internal circuit partition shielding wiring. The main control chip 13 can process two displacement signals in parallel and synchronously. The firmware software has multi-mode operation logic, supporting three states: trackball sensor module 6 working independently, desktop sensor module 11 working independently, and dual-sensor signal fusion and collaborative work. It can automatically allocate the output weight of the dual sensor signals according to the size of the operation displacement, achieving a seamless combination of high-precision fine-tuning and large-range fast screen movement. Meanwhile, the dual sensors have independent DPI sensitivity adjustment, static signal noise reduction calibration, and cursor anti-drift zeroing algorithm. Power-off parameters can be stored locally. The two modules serve as backup redundancy for each other. A single sensor malfunction will not affect the overall normal use. It is driverless and compatible with multiple platforms. The structure is compact and reasonable, making it easy to mass assembly and production.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A trackball and bottom-mounted dual-sensor composite control mouse, characterized in that, The system includes an upper mouse shell (1), a lower mouse shell (2) installed at the bottom of the upper mouse shell (1), an installation groove (3) in the inner cavity of the lower mouse shell (2), an installation platform (4) fixedly connected to the inner cavity of the installation groove (3), a trackball sensor module (6) installed at the top of the installation platform (4), an installation plate (5) bolted to the top of the installation platform (4), a positioning block (7) fixedly connected to the top of the installation plate (5), a fixing groove (8) in the top of the positioning block (7), a trackball body (9) connected to the inner cavity of the fixing groove (8), a positioning groove (10) in the bottom of the lower mouse shell (2), a desktop sensor module (11) installed in the inner cavity of the positioning groove (10), a main control circuit board (12) installed in the inner cavity of the installation groove (3), and the trackball sensor module (6) and the desktop sensor module (11) electrically connected to the main control circuit board (12).

2. The trackball and bottom-mounted dual-sensor composite control mouse according to claim 1, characterized in that, The top of the main control circuit board (12) is connected to the main control chip (13), and the inner cavity of the mounting slot (3) is equipped with the first signal receiving module (14). The first signal receiving module (14) is electrically connected to the main control chip (13) and the trackball sensing module (6).

3. The trackball and bottom-mounted dual-sensor composite control mouse according to claim 2, characterized in that, The inner cavity of the mounting slot (3) is equipped with a second signal receiving module (15), which is electrically connected to the main control chip (13) and the desktop sensing module (11).

4. A trackball and bottom-mounted dual-sensor composite control mouse according to claim 1, characterized in that, The mounting slot (3) is connected to a power supply module (16) on its inner side, a battery compartment (17) is installed in the inner cavity of the mounting slot (3), and a communication module (26) is installed in the inner side of the mounting slot (3).

5. A trackball and bottom-mounted dual-sensor composite control mouse according to claim 4, characterized in that, The bottom of the lower mouse housing (2) is connected to a positioning plate (18), and the battery compartment (17) is electrically connected to the power supply module (16).

6. A trackball and bottom-mounted dual-sensor composite control mouse according to claim 1, characterized in that, A guide cavity (21) is provided on one side of the upper mouse shell (1), and a button component (22) is connected inside the guide cavity (21).

7. A trackball and bottom-mounted dual-sensor composite control mouse according to claim 6, characterized in that, A signal sensor (20) is installed inside the mounting slot (3). The signal sensor (20) is connected to the button component (22). The button component (22) is electrically connected to the main control circuit board (12). The signal sensor (20) is electrically connected to the main control chip (13).

8. A trackball and bottom-mounted dual-sensor composite control mouse according to claim 1, characterized in that, The top of the upper mouse shell (1) is provided with an arc surface (19), and a mounting cavity (25) is provided on one side of the arc surface (19). The mounting cavity (25) is in contact with the trackball body (9).

9. A trackball and bottom-mounted dual-sensor composite control mouse according to claim 1, characterized in that, The upper mouse housing (1) has a wiring hole (23) on its front side, and the upper mouse housing (1) and the lower mouse housing (2) have several threaded holes (24) on their opposite sides.

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