CN113342178A - Keyboard track ball layout method - Google Patents

Abstract

The invention discloses a keyboard track ball layout method, which is characterized in that a keyboard key module comprising standard keyboard keys is communicated with a main control module in a protocol mode; integrating a mode switching key for switching partial key working modes on the keyboard key module with the keyboard key module; and selecting a pointer module with a miniature track ball to be embedded in the J key of the keyboard key module and electrically connected with the main control module. Therefore, the expense of frequently switching the two hands between the keyboard and the mouse can be avoided on the premise of causing the minimum influence on the use habit of the conventional keyboard and the conventional mouse, and the input efficiency of the computer is improved.

Description

Keyboard track ball layout method

Technical Field

The invention relates to the technical field of computers, in particular to a keyboard trackball layout method.

Background

When the computer is used daily, the computer can not be operated by using a keyboard and a mouse (or a touch pad and the like, hereinafter referred to as a mouse). The keyboard is mainly used for character editing, shortcut keys and the like, and the functions realized by the keyboard are summarized as input operation; the mouse is used for positioning, turning pages, selecting and the like of a screen pointer, and the functions realized by the mouse are collectively called positioning operation. When a traditional keyboard and mouse are used as input equipment for work such as massive text editing, information browsing, program development and the like, frequent inputting and positioning operations cannot be avoided, and functional requirements of inputting and positioning cannot be met by any equipment of the keyboard and the mouse. Therefore, when the work is carried out, the right hand (according to the operation habit of normal people, the same principle of a left-hand mouse user) needs to be switched back and forth between the keyboard and the mouse, the back and forth switching process more or less causes time overhead, visual or tactile hand positioning overhead and attention overhead, the time overhead is dispersed in light, the work idea smoothness is interrupted in heavy, and the work efficiency is influenced invisibly. The invention provides a keyboard track ball layout method.

Disclosure of Invention

The invention aims to provide a keyboard track ball layout method which can avoid the overhead of frequently switching two hands between a keyboard and a mouse on the premise of causing the minimum influence on the use habit of a conventional keyboard and a mouse, thereby improving the input efficiency of a computer.

In order to achieve the above object, the present invention provides a keyboard trackball layout method, comprising the following steps:

communicating a keyboard key module containing standard keyboard keys with a master control module protocol;

integrating a mode switching key for switching partial key working modes on the keyboard key module with the keyboard key module;

and selecting a pointer module with a miniature track ball to be embedded in the J key of the keyboard key module and electrically connected with the main control module.

The pointer module further comprises four circular permanent magnets and four high-precision latching type Hall sensors, and the micro track ball is used for sampling the movement of the finger;

when the miniature track ball rotates along with the movement of the finger, the miniature track ball drives the circular permanent magnets in four directions to rotate;

and the four latching type Hall sensors are used for acquiring magnetic field transformation in each direction.

Wherein, select the pointer module that has miniature trackball and inlay and locate the J key of keyboard button module, and with behind master control module electric connection's the step, still include:

and setting the operation of simulating mouse keys on the keys of the keyboard key module according to the habit of placing fingers of a user during typing.

Wherein, select the pointer module that has miniature trackball and inlay and locate the J key of keyboard button module, and with behind master control module electric connection's the step, still include:

and setting the operation of simulating a mouse wheel on the keys of the keyboard key module according to the finger position placing habit of a user during typing.

Wherein, according to the habit of placing the finger position of the user when typing, the operation of simulating the mouse button is set on the button of the keyboard button module, which specifically comprises the following steps:

setting F, G, H, J four keys on the keyboard key module to be equal to a left mouse key;

setting D, K keys on the keyboard key module to be equal to a right mouse key;

and setting E, I two keys on the keyboard key module to be equal to the middle key of the mouse.

Wherein, according to the habit of placing the finger position of the user when typing, the operation of simulating the mouse roller is set on the keys of the keyboard key module, which specifically comprises the following steps:

and setting S, L two keys on the keyboard key module to be equal to a mouse wheel.

After the step of integrating the mode switching keys for switching the working modes of the partial keys on the keyboard key module with the keyboard key module, the method comprises the following steps of:

setting a locking structure on the mode switching key, wherein the locking structure is used for realizing the position locking of the mode switching key after being pressed.

The invention has the beneficial effects that: the keyboard key module containing the standard keyboard keys is communicated with the main control module through a protocol; integrating a mode switching key for switching partial key working modes on the keyboard key module with the keyboard key module; and selecting a pointer module with a miniature track ball to be embedded in the J key of the keyboard key module and electrically connected with the main control module. The keyboard key module is divided into two working modes, one is a keyboard mode, the other is a pointer mode, the keyboard key module works in the keyboard mode in a default mode, input operation in the keyboard mode is the same as that of a conventional keyboard, after the keyboard key module is pressed, the keyboard key module works in the pointer mode, a forefinger of a hand is placed on a J key, and the micro trackball is used for sampling finger movement of the micro trackball, so that movement of a mouse cursor can be realized, and therefore the expense of frequently switching two hands between the keyboard and the mouse can be avoided on the premise of causing the minimum influence on the use habit of the conventional keyboard and the mouse, and the input efficiency of the computer is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a flowchart of the steps of a keyboard trackball layout method of the present invention.

Fig. 2 is a circuit diagram of the keyboard keys of the present invention.

Fig. 3 is a circuit diagram of a trackball sampling circuit of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1, the present invention provides a keyboard track ball layout method, which includes the following steps:

s1: communicating a keyboard key module containing standard keyboard keys with a master control module protocol;

s2: integrating a mode switching key for switching partial key working modes on the keyboard key module with the keyboard key module;

s3: and selecting a pointer module with a miniature track ball to be embedded in the J key of the keyboard key module and electrically connected with the main control module.

The pointer module further comprises four circular permanent magnets and four high-precision latching type Hall sensors, and the miniature track ball is used for sampling the movement of the finger;

when the miniature track ball rotates along with the movement of the finger, the miniature track ball drives the circular permanent magnets in four directions to rotate;

and the four latching type Hall sensors are used for acquiring magnetic field transformation in each direction.

After the step of selecting the pointer module with the miniature track ball to be embedded in the J key of the keyboard key module and electrically connected with the main control module, the method further comprises the following steps:

and setting the operation of simulating mouse keys on the keys of the keyboard key module according to the habit of placing fingers of a user during typing.

After the step of selecting the pointer module with the miniature track ball to be embedded in the J key of the keyboard key module and electrically connected with the main control module, the method further comprises the following steps:

and setting the operation of simulating a mouse wheel on the keys of the keyboard key module according to the finger position placing habit of a user during typing.

Setting the operation of simulating the mouse button on the button of the keyboard button module according to the finger position placing habit of the user during typing, which specifically comprises the following steps:

setting F, G, H, J four keys on the keyboard key module to be equal to a left mouse key;

setting D, K keys on the keyboard key module to be equal to a right mouse key;

and setting E, I two keys on the keyboard key module to be equal to the middle key of the mouse.

Setting the operation of simulating a mouse wheel on the keys of the keyboard key module according to the finger position placing habit of a user during typing, specifically comprising the following steps:

and setting S, L two keys on the keyboard key module to be equal to a mouse wheel.

After the step of integrating the mode switching keys for switching the working modes of the partial keys on the keyboard key module with the keyboard key module, the method comprises the following steps:

setting a locking structure on the mode switching key, wherein the locking structure is used for realizing the position locking of the mode switching key after being pressed.

In this embodiment, the main control module adopts a main control chip for implementing the USB protocol, the working algorithm, and the coordination of the functions of the modules, and the keyboard key module is the same as the conventional keyboard, includes standard keyboard keys, and may additionally add additional function keys like multimedia keys; the mode switching key is used for switching keys of a device working mode, can be integrated with the keyboard key module on hardware, and enters a pointer mode after being pressed; the pointer module is used for adopting fingers, and considering that the pointer module is a module used at high frequency, the most flexible finger of a common person is the index finger of the right hand, and therefore the module is physically embedded into a keycap of a J key of a keyboard, namely the key position of the index finger of the right hand under the gesture of a standard keyboard.

The keyboard keys of the keyboard key module adopt 11 rows and 11 columns of matrix key scanning circuits, 22 GPIO ports of the main control module are occupied, and control of up to 11 × 11 ═ 121 keys can be easily realized, wherein the keyboard module is used for realizing the functions of a standard 104-key keyboard, 1 key is used for realizing a pointer key, and the rest 16 keys can be used for multimedia keys, additional function keys, script keys and the like. Each key is provided with a diode and a resistor, the diode is used for avoiding row-column conflict, and the resistor is used for avoiding overlarge current of the GPIO of the main control chip. Taking 2 rows and 2 columns as an example, the keyboard key circuit is shown in fig. 2: the keyboard key circuit comprises a diode D1, a key switch S1, a resistor R1, a diode D2, a key switch S2, a resistor R2, a diode D3, a key switch S3, a resistor R3, a diode D4, a key switch S4 and a resistor R4, wherein the diode D1, the key switch S1 and the resistor R1 are sequentially connected in series, the diode D2, the key switch S2 and the resistor R2 are sequentially connected in series, the diode D3, the key switch S3 and the resistor R3 are sequentially connected in series, the diode D4, the key switch S4 and the resistor R4 are sequentially connected in series, and the diode D1, the diode D2, the diode D3, the diode D4, the resistor R1, the resistor R2, the resistor R3 and the resistor R4 are all connected with corresponding ports of the master control module.

In the pointer module, the miniature track ball adopts a loose EVQWJN series miniature track ball to realize sampling of finger movement, and when the track ball rotates along with the finger movement, the track ball can drive circular permanent magnets in four directions to rotate to form magnetic field rotation. In the aspect of a circuit, four high-precision latching type Hall sensors are adopted to acquire magnetic field transformation in each direction, and the Hall sensors are suggested to be selected from Panasonic AN48840B, AN48841B and the like. The Hall sampling circuit is shown in FIG. 3: the four latching type Hall sensors form a track ball sampling circuit, and the method specifically comprises the following steps: every two latch type hall sensors connect in parallel to form a group of paths, the input ends of the two groups of paths are connected with a 3.3v power supply, and the output ends of the two groups of paths are grounded.

And the mode switching key is used for switching the working mode of the equipment. Considering that the keys are high frequency use keys and in combination with the requirement of not affecting standard keyboard gestures, the key locations are designed below the space bar of the standard keyboard. In order to meet the requirement of pressing down by the left hand and the right hand, the wide keycap is adopted and is provided with a transverse connecting rod to prevent the keycap from inclining. And after the step of integrating a mode switching key for switching the working modes of partial keys on the keyboard key module with the keyboard key module, setting a locking structure on the mode switching key, wherein the locking structure is used for locking the position of the mode switching key after being pressed. The method specifically comprises the following steps: and the shifting lever is locked, and can be shifted into a long-press state after being pressed down, so that finger muscle fatigue of the equipment under the scene of working in a pointer mode for a long time is avoided.

When the keyboard is in a pointer mode, fingers rub the J key of the micro track ball embedded in the J key of the keyboard to slide on the J key, and a pointer moving effect is manufactured.

When the device works in the pointer mode, considering different application scenarios and different input operation habits, the key functions on the keyboard are designed as follows: f, G, H, J four keys on the keyboard (left and right hand index finger operation under standard keyboard gesture) are equivalent to the left mouse key; D. the K two keys (left and right middle finger operation under standard keyboard gestures) are equal to the right mouse key; E. the I key (left and right middle finger operation under standard keyboard gesture) is equal to the middle mouse key, S, L two keys (left and right ring finger operation under standard keyboard gesture) are designed for scrolling operation, and the rest keys maintain the conventional keyboard function.

In addition, when the keyboard works in a pointer mode and presses down an S key or an L key of the keyboard, fingers rub and slide on a J key of a micro track ball embedded in the J key of the keyboard to manufacture a rolling effect, so that the mouse roller operation is simulated, the transverse rolling is additionally supported, and the picture positioning is easier.

The diameter of the miniature track ball is 5mm, 11 times of magnetic pole turnover can be only generated when the miniature track ball rotates for one circle in any direction of up, down, left and right, the Hall element can only generate 11 times of level turnover signals, and the calculation shows that once moving signal can be generated when the finger moves for 1.4 mm.

Given the screen resolution of 1920 x 1080 and higher commonly used in today's computers, such signal density is not sufficient for fast moving pointers. The simple fixed magnification algorithm cannot meet the requirement of pointer pixel-level accurate positioning, and simultaneously, the feeling of pointer position jumping can be generated, and the user experience is greatly influenced.

The aim of rapid, accurate and smooth movement can be achieved when the pointer is operated by using the track ball to move. The method designs a formula, calculates the moving speed and the absolute moving amount of the track ball through statistics, and obtains the moving vector of the final pointer through a series of operations. The formula is expressed as follows:

where t represents the current period, the patent sets a period every 10 milliseconds.

N is a constant representing the number of statistical sampling cycles.

P_nRepresenting the acquired trackball motion pulse vector in the nth period.

M_nIndicating the pointer movement vector in the nth cycle.

Wherein at P_tAnd M_tRespectively using P when being used_nAnd M_nIt is shown that t is a variable of specific significance, n represents any variable, and may be t or t-i and the like. The value of N influences the response speed of pointer movementThe degree and the direction are accurate. When the value of N is larger, the moving direction of the pointer is more accurate, the pointer moves more smoothly, but the response speed is slower, and the pointer has delay feeling. When the value of N is smaller, the response speed of the pointer is faster, but the direction accuracy is lower, and particularly, the pointer has a step feeling when moving obliquely. After a large amount of user experience trials, the patent draws a conclusion that: when N is 12, the response speed of the pointer movement, the direction accuracy, and the movement smoothness can be preferably satisfied.

In summary, the following steps: the release mode switching key works in a keyboard mode when released, and the use mode is equivalent to that of a conventional keyboard. When the mode switching key is pressed, the mode is switched to a pointer mode, and a track ball on the J key can be used for controlling a computer pointer. When the mouse works in the pointer mode, the F, G, H, J four-key is equivalent to the left mouse button, the D, K key is equivalent to the right mouse button, and the E, I key is equivalent to the middle mouse button, so that the mouse conforms to the conventional mouse use habit. The mouse works in a pointer mode, presses an S or L key and controls the movement of the trackball by combining with a finger, can realize vertical and horizontal scrolling, has a horizontal scrolling function more than that of a conventional mouse, and is easier to position pictures. After the pointer key is pressed and locked, the device can work in a pointer mode for a long time, and the fatigue of finger muscles is avoided. The switching process between the keyboard mode and the pointer mode is simple and convenient, and the fingers of both hands are positioned at the operation key positions of the standard keyboard in the two modes.

The keyboard track ball layout method provided by the invention can give consideration to both input and positioning operations under the condition of minimizing the influence on the conventional operation habit of the keyboard and the mouse, and solves the problems of distraction and even influence on the working idea caused by frequent movement of an arm between the keyboard and the mouse in the work of massive character editing, information browsing, program development and the like.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. A keyboard track ball layout method is characterized by comprising the following steps:

communicating a keyboard key module containing standard keyboard keys with a master control module protocol;

integrating a mode switching key for switching partial key working modes on the keyboard key module with the keyboard key module;

and selecting a pointer module with a miniature track ball to be embedded in the J key of the keyboard key module and electrically connected with the main control module.

2. The keyboard trackball layout method of claim 1,

the pointer module further comprises four circular permanent magnets and four high-precision latching type Hall sensors, and the miniature track ball is used for sampling the movement of the finger;

when the miniature track ball rotates along with the movement of the finger, the miniature track ball drives the circular permanent magnets in four directions to rotate;

and the four latching type Hall sensors are used for acquiring magnetic field transformation in each direction.

3. The keyboard trackball layout method according to claim 1, wherein after the step of selecting a pointer module with a micro trackball embedded in the J-key of the keyboard key module and electrically connected to the main control module, the method further comprises:

and setting the operation of simulating mouse keys on the keys of the keyboard key module according to the habit of placing fingers of a user during typing.

4. The keyboard trackball layout method according to claim 1, wherein after the step of selecting a pointer module with a micro trackball embedded in the J-key of the keyboard key module and electrically connected to the main control module, the method further comprises:

and setting the operation of simulating a mouse wheel on the keys of the keyboard key module according to the finger position placing habit of a user during typing.

5. The keyboard trackball layout method of claim 3, wherein the operation of simulating mouse buttons is set on the buttons of the keyboard button module according to a habit of placing fingers of a user during typing, specifically:

setting F, G, H, J four keys on the keyboard key module to be equal to a left mouse key;

setting D, K keys on the keyboard key module to be equal to a right mouse key;

and setting E, I two keys on the keyboard key module to be equal to the middle key of the mouse.

6. The keyboard trackball layout method according to claim 4, wherein the operation of simulating a mouse wheel is set on the keys of the keyboard key module according to a finger position placing habit of a user during typing, specifically:

and setting S, L two keys on the keyboard key module to be equal to a mouse wheel.

7. The keyboard trackball layout method of claim 1, wherein the step of integrating a mode switch key for switching a partial key operation mode on the keyboard key module with the keyboard key module comprises:

setting a locking structure on the mode switching key, wherein the locking structure is used for realizing the position locking of the mode switching key after being pressed.

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