CN216352216U - Computer input device - Google Patents

Abstract

The present application relates to a computer input device. The computer input device outputs the first signal through the keyboard matrix, outputs the second signal through the encoder circuit, that is, outputs different control signals through the keyboard matrix and the encoder circuit, and then generates the first signal and/or the second signal through the main control circuit. The operation instructions corresponding to the two signals, the interface circuit sends the operation instructions to the computer equipment, so that the computer equipment completes the corresponding control operations according to the operation instructions, and the computer equipment can be controlled only by the keyboard matrix and the encoder circuit of the computer input equipment. Operation, there is no need to switch between the keyboard and the mouse, which is more concise and efficient than the keyboard combined with the mouse operation.

Description

computer input device

technical field

The present application relates to the field of computer technology, and in particular, to a computer input device.

Background technique

The computer input device is the keyboard, but when using the existing keyboard to frame the subtitles in the video, the staff needs to operate the keyboard shortcuts with one hand to determine the entry and exit points of the subtitles in the video, and the other hand needs to operate the mouse to determine the position of the video. Play and pause, when the subtitle appears, operate the mouse to pause the video, and then click the arrow keys on the keyboard to go back frame by frame to find the frame where the subtitle appears, so as to determine the subtitle in point, and find and determine the subtitle out point according to the same principle. However, this method requires the staff to switch back and forth between the keyboard and the mouse, which reduces work efficiency, and is prone to misoperation when switching between the keyboard and the mouse.

Utility model content

In order to solve the above technical problems, the present application provides a computer input device.

The present application provides a computer input device, including:

a keyboard matrix for outputting a first signal according to the contact state between each hot-swap axle seat and the corresponding hot-swap axle body in the keyboard matrix;

an encoder circuit for outputting a second signal according to the motion state of the encoder in the encoder circuit;

a main control circuit, which is electrically connected to the keyboard matrix and the encoder circuit, respectively, for generating corresponding operation instructions according to the first signal and/or the second signal;

an interface circuit, electrically connected to the main control circuit, for transmitting the operation instruction to a computer device;

a power supply circuit, which is electrically connected to the encoder and the main control circuit respectively, and is used to step down the supply voltage sent by the power supply and convert it into a driving voltage; wherein, the driving voltage is used for the encoder and the main control circuit. The main control circuit is powered.

In one embodiment, the keyboard matrix includes a plurality of hot-plug circuits arranged in rows and columns, the first input terminals of all the hot-plug circuits in the keyboard matrix are electrically connected to a power supply, and the keyboard The first output terminals of all the hot-plug circuits in the matrix are electrically connected to the display interface, the second input terminals of all the hot-plug circuits in the same row are connected to the first node, and the second input terminals of all the hot-plug circuits in the same row are connected to the first node. The second output end of the hot-plug circuit is connected to the second node.

In one embodiment, the hot-swap circuit includes the hot-swap hub, a first diode, a light-emitting diode, and a first resistor, and the hot-swap hub includes a hub switch and a connection node, The first end of the axle seat switch is electrically connected to the positive pole of the first diode, the second end of the axle seat switch is used as the second output end of the hot-swap circuit, the first and second The cathode of the pole tube is used as the second input terminal of the hot-plug circuit, the anode of the light-emitting diode is used as the first input terminal of the hot-plug circuit, and the cathode of the LED is electrically connected to the connection node. , the connection node is electrically connected to the first end of the first resistor, and the second end of the first resistor serves as the first output end of the hot-plug circuit.

In one embodiment, the encoder circuit includes:

a first encoding circuit, configured to output a first adjustment signal according to the motion state of the first encoder in the first encoding circuit;

The second encoding circuit is configured to output a second adjustment signal according to the motion state of the second encoder in the second encoding circuit; wherein the first adjustment signal and the second adjustment signal are different first signals.

In one embodiment, the first encoding circuit outputs a rotation adjustment signal according to a rotation state of the first encoder; the first encoding circuit outputs a pressing adjustment signal according to a pressing state of the first encoder.

In one embodiment, the first encoding circuit includes the first encoder, a second diode, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first capacitor and a second capacitor , the first pin of the first encoder is connected to the first end of the third resistor through the second resistor, and the second end of the third resistor is electrically connected to the output end of the power supply circuit , the first pin of the first encoder is also grounded via the first capacitor, the second pin of the first encoder is grounded, and the third pin of the first encoder is grounded via the second The capacitor is grounded, the third pin of the first encoder is also connected to the first end of the fifth resistor through the fourth resistor, and the second end of the fifth resistor is connected to the output end of the power supply circuit The fourth pin of the first encoder is also connected to the main control circuit through the second diode.

In one embodiment, the interface circuit includes an interface chip and a plurality of sub-interface circuits, the interface chip is electrically connected to the main control circuit, and is used to provide a plurality of connection ports; the sub-interface circuit is connected to the main control circuit. The connection ports of the interface chip are electrically connected to the computer equipment, wherein the number of the sub-interface circuits is less than or equal to the number of the connection ports.

In one embodiment, the power supply circuit includes a power supply chip, a first capacitor group, a second capacitor group and a third capacitor group, the first pin of the power supply chip is connected to the power supply, and the power supply chip The first pin is also grounded through the first capacitor group, the second and third pins of the power chip are connected to a third node, and the third node is grounded through the second capacitor group, so The third node is also grounded through the third capacitor group, and the third node is also electrically connected to the encoder circuit and the main control circuit, respectively.

In one embodiment, the computer input device further comprises:

The display screen is electrically connected with the main control circuit and used to display the working parameters of the computer input device.

In one embodiment, the computer input device further comprises:

The indicating circuit is electrically connected with the main control circuit, and is used for entering a corresponding display state according to the operation instruction output by the main control circuit.

Based on the above computer input device, the first signal is output through the keyboard matrix, and the second signal is output through the encoder circuit, that is, different control signals are output through the keyboard matrix and the encoder circuit, and then the main control circuit generates a The operation instruction corresponding to the second signal, the interface circuit sends the operation instruction to the computer equipment, so that the computer equipment completes the corresponding control operation according to the operation instruction. operation without switching between the keyboard and the mouse, which is more concise and efficient than the keyboard combined with the mouse operation.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. It is obvious to those skilled in the art that In other words, on the premise of no creative labor, other drawings can also be obtained based on these drawings.

1 is an application environment diagram of a computer input device in one embodiment;

2 is a schematic diagram of the internal structure of a computer input device in one embodiment;

3 is a schematic structural diagram of a main control circuit in one embodiment;

4 is a schematic structural diagram of a keyboard matrix in one embodiment;

5 is a schematic diagram of a partial structure of a keyboard matrix in one embodiment;

6 is a schematic diagram of a partial structure of a keyboard matrix in one embodiment;

7 is a schematic structural diagram of a computer input device in one embodiment;

8 is a schematic structural diagram of a first encoding circuit in one embodiment;

9 is a schematic structural diagram of an interface circuit in an embodiment;

10 is a schematic structural diagram of a sub-interface circuit in one embodiment;

11 is a schematic structural diagram of a sub-interface circuit in one embodiment;

12 is a schematic structural diagram of a power supply circuit in one embodiment;

FIG. 13 is a schematic structural diagram of an indicator circuit in one embodiment.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

FIG. 1 is an application environment diagram of a computer input device in one embodiment. 1, the computer input device is applied to a computer control system. The computer control system includes a computer device 110 and a computer input device 110 . The computer device 110 and the computer input device 110 are connected through a wired connection or a wireless connection. The computer device 110 may specifically be a desktop terminal or a mobile terminal, and the mobile terminal may specifically be a device that can be connected to a computer input device, such as a tablet computer or a notebook computer.

In one embodiment, FIG. 2 is a schematic structural diagram of a computer input device in an embodiment. Referring to FIG. 2, a computer input device is provided, and the computer input device specifically includes:

The keyboard matrix 111 is used for outputting a first signal according to the contact state between each hot-plug shaft seat and the corresponding hot-plug shaft body in the keyboard matrix 111 .

Specifically, the keyboard matrix 111 includes a plurality of hot-plug circuits, and each hot-plug circuit corresponds to a hot-plug shaft base and a hot-plug shaft body, and the hot-plug shaft base and the hot-plug shaft body are equivalent to those in the keyboard. The contact state between the hot-swap shaft seat and the corresponding hot-swap shaft body includes contact and separation. When the contact state is contact, it means that the hot-swap shaft body is in contact with the hot-swap shaft seat by pressing force, which is equivalent to The keys on the keyboard are pressed by force, thereby generating a first signal, and the first signal is used to indicate an operation signal corresponding to the force key.

The encoder circuit 112 is configured to output a second signal according to the motion state of the encoder in the encoder circuit 112 .

Specifically, the encoder is a knob structure, and the motion state of the encoder includes a rotating state and a pressing state, that is, the user can realize the control operation by rotating the encoder or pressing the encoder, thereby generating the operation signal corresponding to the rotating behavior or the pressing behavior. , that is, the second signal is generated.

The encoder circuit 113 is electrically connected to the keyboard matrix 111 and the encoder circuit 112 respectively, and is configured to generate corresponding operation instructions according to the first signal and/or the second signal.

Specifically, the encoder circuit 113 is used to receive the operation signals output by the keyboard matrix 111 and the encoder circuit 112 , analyze and process the operation signals according to preset operation rules, and generate corresponding operation instructions, and the operation rules include in the keyboard matrix 111 . The operation definition corresponding to each key and the operation definition corresponding to the encoder.

Exemplarily, the operation corresponding to the key is defined as being pressed by force and then generating a first signal indicating the corresponding number, and the encoder circuit 113 generates an operation instruction to display the number according to the first signal; the operation corresponding to the encoder is defined as force-revolving. Then, a second signal corresponding to the rotation angle is generated. The second signal is used to indicate the parameter adjustment degree or the adjusted parameter value. The rotation angle is specifically related to the parameter adjustment degree. The encoder circuit 113 generates and displays the adjusted parameter according to the second signal. Value manipulation instructions.

In this embodiment, when the computer input device is applied to the video subtitle paired frame scene, the rotary encoder can be used to perform fast frame skipping or frame-by-frame positioning of the subtitle entry and exit points, and the shortcut keys in the keyboard matrix 111 can be used to control the playback of the video Or pause playback, without using the keyboard combined with the mouse operation mode, only the keyboard matrix 111 and the encoder circuit 112 of the computer input device are used to realize the operation of the computer equipment, which is more concise and efficient than the keyboard combined with the mouse operation.

The encoder circuit 113 includes a control chip and peripheral circuits. The control chip can be selected from any micro-control chip capable of data processing. In this embodiment, a chip with a model of STM32F303CCT6 is selected as the control chip. The connection relationship between the control chip and the peripheral circuit is shown in the figure. 3 shown.

The interface circuit 114 is electrically connected to the encoder circuit 113, and is used for transmitting the operation instruction to the computer device.

Specifically, the interface circuit 114 is used to establish a connection relationship between the computer input device and the external device. The external device can be a computer device or a device such as a USB flash drive. The interface circuit 114 transmits the operation instructions generated by the computer input device to the computer input device. Computer equipment, the computer equipment executes the operation instruction, and displays the execution result of the operation instruction through the display interface of the computer equipment, so as to control the computer equipment by operating the computer input device.

The power supply circuit 115 is electrically connected to the encoder and the encoder circuit 113 respectively, and is used to step down the supply voltage sent by the power supply and convert it into a driving voltage.

Specifically, the driving voltage is used to power the encoder and the encoder circuit 113 .

In one embodiment, the keyboard matrix 111 includes a plurality of hot-plug circuits arranged in rows and columns, and the first input terminals of all the hot-plug circuits in the keyboard matrix 111 are electrically connected to the power supply. The first output terminals of all the hot-plug circuits in the keyboard matrix 111 are electrically connected to the display interface, the second input terminals of all the hot-plug circuits in the same row are connected to the first node, and the same column is connected to the first node. The second output terminals of all the hot-swap circuits are connected to the second node.

Specifically, the keyboard matrix 111 includes a plurality of hot-plug circuits arranged in rows and columns, and each hot-plug circuit corresponds to a button. As shown in FIG. 4 , in this embodiment, the keyboard matrix 111 includes 24 hot-plug circuits, that is, The computer input device includes 24 keys, and the hot-plug circuit includes two input terminals and two output terminals. The first input terminals of all the hot-plug circuits in the keyboard matrix 111 are connected to the +5V power supply. The first output terminals of all the hot-plug circuits are connected to the display interface LED, the second input terminals of the hot-plug circuits located in the same row are connected to the first node, and the second input terminals of the hot-plug circuits located in the same column are connected to the first node. The output terminals are all connected to the second node. In Figure 5, the second input terminals of all the hot-swap circuits in the first row are connected to the first node r0, and the second output terminals of all the hot-swap circuits in the first column in Figure 6. Both are connected to the second node c0.

In one embodiment, the hot-plug circuit includes the hot-plug shaft seat, a first diode, a light-emitting diode, and a first resistor, as shown in FIG. 4 , U1-U4, U6-U9, U11-U14 , U16-U19, U20-U23, U25-U28 are all hot-swappable axle seats, and the hot-swappable axle seats include axle seat switches and connection nodes. For details, refer to each hot-swap circuit in Figure 5 or Figure 6. Components and connection relationships are the same, the first end of the axle seat switch is electrically connected to the positive pole of the first diode, and the second end of the axle seat switch is used as the second end of the hot swap circuit. Output terminal, the cathode of the first diode is used as the second input terminal of the hot-plug circuit, the anode of the light-emitting diode is used as the first input terminal of the hot-plug circuit, and the cathode of the light-emitting diode is used as the first input terminal of the hot-plug circuit. It is electrically connected to the connection node, the connection node is electrically connected to the first end of the first resistor, and the second end of the first resistor serves as the first output end of the hot-plug circuit.

Specifically, when the hot-swap shaft body is in contact with the hot-swap shaft seat, the shaft seat switch is closed to make the hot-swap circuit conduct, thereby generating the first signal corresponding to the corresponding key.

In one embodiment, the encoder circuit 112 includes:

a first encoding circuit, configured to output a first adjustment signal according to the motion state of the first encoder in the first encoding circuit;

The second encoding circuit is configured to output a second adjustment signal according to the motion state of the second encoder in the second encoding circuit; wherein the first adjustment signal and the second adjustment signal are different first signals.

Specifically, the first encoding circuit includes a first encoder, and the second encoding circuit includes a second encoder. The first encoder and the second encoder respectively indicate two knobs, one large and one small, on the keyboard in FIG. The two encoders can realize different degrees of parameter adjustment. The first encoder can be rotated by one grid to perform a large degree of parameter adjustment according to the first adjustment amount, and the second encoder can be rotated by one grid to perform a smaller degree of parameter adjustment according to the second adjustment amount. Parameter adjustment, the first adjustment amount is greater than the second adjustment amount, the rotation angle corresponding to one grid can be customized according to the actual situation, and the rotation unit angle of the first encoder and the second encoder can be set to different angles, or Set to the same angle.

Exemplarily, the first adjustment amount is 10, the second adjustment amount is 1, and the angle corresponding to the rotation of the first encoder and the second encoder by one grid is both 3°, that is, the parameter corresponding to each rotation of the first encoder by one grid. The adjustment amount is 10. When applied to the frame-pairing scenario, that is, 10 frames are skipped for every 3° of rotation of the first encoder, and 1 frame is skipped for every 3° of rotation of the second encoder. Therefore, using the first encoder to realize the frame skip operation, you can quickly browse the video to roughly determine the approximate range of the subtitle entry and exit points, that is, determine the frame range, and then use the second encoder to perform frame-by-frame operations in the frame range to achieve precise positioning. Subtitle in and out point, the action of repeatedly tapping the keyboard is transformed into the action of twisting the knob. By rotating the knob, you can trigger the key multiple times in a short time. The shortcut key is bound to the key layer, that is, the corresponding input mode is determined, the number of key layers is equal to the number of input modes, and the value corresponding to the key layer is used to indicate the input mode corresponding to the value, which can be completed on an input device. Frame work is more concise and efficient than keyboard and mouse operations.

In one embodiment, the first encoding circuit outputs a rotation adjustment signal according to a rotation state of the first encoder; the first encoding circuit outputs a pressing adjustment signal according to a pressing state of the first encoder.

Specifically, the first encoder is used to determine the parameter adjustment amount in the forward or reverse rotation state, thereby generating the rotation adjustment signal; the first encoder is used to lock the designated operation mode in the pressed state, and the designated operation mode can be specifically It is the input mode of the computer input device, which means that each key and encoder of the computer input device can be set to different operation definitions, and multiple input modes can be formed according to the multiple operation definitions corresponding to the keys. It is customary to set multiple sets of input modes (key layers), and key layers can be switched in different usage scenarios, that is, the corresponding operation definitions of the same button in different input modes are different. To represent numbers, key one is used to instruct a shortcut key to control video playback and pause in the second input mode. The first encoder switches the current input mode in the pressed state, and switches from the current input mode to the input mode corresponding to the next key layer, that is, the generated press adjustment signal is used to switch the input mode, and can also be specified by the key in the keyboard matrix. Realize the switch of input mode. Similar to the first encoder, the second encoder outputs a corresponding rotation adjustment signal or a push adjustment signal in a rotating state or a pressing state.

In one embodiment, as shown in FIG. 8 , the first encoding circuit includes the first encoder, a second diode, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first Capacitor and second capacitor, EC11 in Figure 8 indicates the first encoder, D1 indicates the second diode, R31 indicates the second resistance, R32 indicates the third resistance, R33 indicates the fourth resistance, R34 indicates the fifth resistance, C31 Indicates the first capacitor, C32 indicates the second capacitor, the first pin of the first encoder is connected to the first end of the third resistor through the second resistor, and the second end of the third resistor is connected to The output end of the power circuit 115 is electrically connected, the first pin of the first encoder is also grounded through the first capacitor, the second pin of the first encoder is grounded, and the first encoder The third pin of the encoder is grounded through the second capacitor, and the third pin of the first encoder is also connected to the first end of the fifth resistor through the fourth resistor. The second end is electrically connected to the output end of the power supply circuit 115 , and the fourth pin of the first encoder is also connected to the encoder circuit 113 through the second diode. The second encoder circuit 112 has the same circuit structure as the first encoder circuit 112 .

In one embodiment, the interface circuit 114 includes an interface chip and a plurality of sub-interface circuits 114, and the interface chip is electrically connected to the encoder circuit 113 for providing a plurality of connection ports; the sub-interface circuits 114 It is electrically connected to the connection port of the interface chip for connecting with the computer device, wherein the number of the sub-interface circuits 114 is less than or equal to the number of the connection port.

Specifically, as shown in FIG. 9 , the interface chip adopts a chip with a model of SL2.1A. The interface chip includes four connection ports, each connection port includes a positive electrode and a negative electrode, and each connection port is used for connecting with a sub-interface. The circuits 114 are connected, that is, the interface chip of this type can be connected to four sub-interface circuits 114 at most, and each sub-interface circuit 114 can establish a connection with an external device.

As shown in FIG. 10 , the sub-interface circuit 114 includes a fuse F1, an adapter USB1 and a capacitor C19. The first pin of the adapter is connected to the power supply VCC through the fuse, and the fourth pin of the adapter is connected to the power supply through the capacitor C19. the first pin of the connector.

In order to visually see the connection of the sub-interface circuit 114, as shown in FIG. 11, the sub-interface circuit 114 also includes a resistor R22 and a photodiode on the basis of the fuse F3, the adapter USB3 and the capacitor C22. The first pin of the connector is connected to the positive pole of the photodiode through the resistor R22, the negative pole of the photodiode is connected to the sixth pin of the switch, and the sixth pin of the switch is grounded.

In one embodiment, the power supply circuit 115 includes a power supply chip, a first capacitor group, a second capacitor group and a third capacitor group, the first pin of the power supply chip is connected to the power supply, and the power supply chip The first pin is also grounded through the first capacitor group, the second and third pins of the power chip are connected to a third node, and the third node is grounded through the second capacitor group, so The third node is also grounded through the third capacitor group, and the third node is also electrically connected to the encoder circuit 112 and the encoder circuit 113 respectively.

Specifically, as shown in FIG. 12 , the first capacitor group includes a capacitor C9 and a capacitor C27 in parallel with each other, the second capacitor group includes an electrolytic capacitor and a capacitor C16 in parallel with each other, and the third capacitor group includes a capacitor C10 and a capacitor C11 in parallel with each other. , capacitor C12, capacitor C13. The power supply circuit 115 converts the +5V power supply voltage into a +3.3V driving voltage to supply power to the encoder circuit 112 and the encoder circuit 113 .

In one embodiment, the computer input device further comprises:

The display screen is electrically connected to the encoder circuit 113 and used to display the working parameters of the computer input device.

Specifically, the working parameters of the computer input device include parameters such as the current input mode, key state, RGB state, etc. The input mode is represented by key layers, that is, the number of key layers is equal to the number of input modes, and the value corresponding to the key layers is used to indicate The input mode corresponding to this value.

The computer input device also includes an RGB light source circuit and an LED backlight circuit, which are used to emit light according to lighting rules in a triggering scene, and the lighting rules are used to indicate the display light effect.

In one embodiment, the computer input device further comprises:

The indicating circuit is electrically connected to the encoder circuit 113 and used to enter a corresponding display state according to the operation instruction output by the encoder circuit 113 .

Specifically, referring to FIG. 13 , the indicator circuit includes a series-connected light-emitting diode and a resistor R1, the positive electrode of the light-emitting diode is connected to the power supply circuit 115, and the resistor is connected to the interface of the single-chip microcomputer. It is realized that when the hot-swap shaft seat is in contact with the hot-swap shaft body, that is, after the designated button is pressed, the LED turns on and enters the display state, indicating that the designated key has entered the locked state, which is convenient for the operator to see intuitively. The lock state of the key. The designated key can be the numlock key and the capslock key.

It should be noted that, in this document, relational terms such as "first" and "second" etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these There is no such actual relationship or sequence between entities or operations. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, computer input device, article or computer input device comprising a list of elements includes not only those elements, but also Other elements not expressly listed, or elements inherent to such a process, computer input device, article, or computer input device are also included. Without further limitation, an element defined by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, computer input device, article, or computer input device that includes the element.

The above are only specific embodiments of the present invention, so that those skilled in the art can understand or realize the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims (10)

1. A computer input device, wherein the computer input device comprises: a keyboard matrix for outputting a first signal according to the contact state between each hot-swap axle seat and the corresponding hot-swap axle body in the keyboard matrix; an encoder circuit for outputting a second signal according to the motion state of the encoder in the encoder circuit; a main control circuit, which is electrically connected to the keyboard matrix and the encoder circuit, respectively, for generating corresponding operation instructions according to the first signal and/or the second signal; an interface circuit, electrically connected to the main control circuit, for transmitting the operation instruction to a computer device; a power supply circuit, which is electrically connected to the encoder and the main control circuit respectively, and is used to step down the supply voltage sent by the power supply and convert it into a driving voltage; wherein, the driving voltage is used for the encoder and the main control circuit. The main control circuit is powered. 2. The computer input device according to claim 1, wherein the keyboard matrix comprises a plurality of hot-plug circuits arranged in rows and columns, and the first input terminals of all the hot-plug circuits in the keyboard matrix are It is electrically connected to the power supply, the first output terminals of all the hot-plug circuits in the keyboard matrix are electrically connected to the display interface, and the second input terminals of all the hot-plug circuits in the same row are connected to the display interface. The first node, the second output terminals of all the hot-swap circuits in the same column are connected to the second node. 3. The computer input device according to claim 2, wherein the hot-plugging circuit comprises the hot-plugging shaft seat, a first diode, a light-emitting diode and a first resistor, and the hot-plugging The shaft seat includes a shaft seat switch and a connection node, the first end of the shaft seat switch is electrically connected with the positive electrode of the first diode, and the second end of the shaft seat switch is used as the hot plug circuit. The second output terminal, the cathode of the first diode is used as the second input terminal of the hot-plug circuit, the anode of the light-emitting diode is used as the first input terminal of the hot-plug circuit, and the light-emitting diode is used as the first input terminal of the hot-plug circuit. The negative pole of the first resistor is electrically connected to the connection node, the connection node is electrically connected to the first end of the first resistor, and the second end of the first resistor is used as the first output end of the hot swap circuit . 4. The computer input device of claim 1, wherein the encoder circuit comprises: a first encoding circuit, configured to output a first adjustment signal according to the motion state of the first encoder in the first encoding circuit; The second encoding circuit is configured to output a second adjustment signal according to the motion state of the second encoder in the second encoding circuit; wherein the first adjustment signal and the second adjustment signal are different first signals. 5 . The computer input device according to claim 4 , wherein the first encoding circuit outputs a rotation adjustment signal according to the rotation state of the first encoder; the first encoding circuit outputs a rotation adjustment signal according to the first encoding The pressing state of the device outputs a pressing adjustment signal. 6. The computer input device according to claim 4, wherein the first encoding circuit comprises the first encoder, a second diode, a second resistor, a third resistor, a fourth resistor, a first Five resistors, a first capacitor and a second capacitor, the first pin of the first encoder is connected to the first end of the third resistor through the second resistor, and the second end of the third resistor is connected to The output end of the power supply circuit is electrically connected, the first pin of the first encoder is also grounded through the first capacitor, the second pin of the first encoder is grounded, and the first encoder is grounded. The third pin of the first encoder is grounded through the second capacitor, and the third pin of the first encoder is also connected to the first end of the fifth resistor through the fourth resistor. The two terminals are electrically connected to the output terminal of the power supply circuit, and the fourth pin of the first encoder is also connected to the main control circuit through the second diode. 7 . The computer input device according to claim 1 , wherein the interface circuit comprises an interface chip and a plurality of sub-interface circuits, and the interface chip is electrically connected to the main control circuit for providing a plurality of connections. 8 . a port; the sub-interface circuit is electrically connected to the connection port of the interface chip for connecting with the computer device, wherein the number of the sub-interface circuit is less than or equal to the number of the connection port. 8. The computer input device according to claim 1, wherein the power supply circuit comprises a power supply chip, a first capacitor group, a second capacitor group and a third capacitor group, and the first pin of the power supply chip is connected to the The power supply is connected to the power supply, the first pin of the power chip is also grounded through the first capacitor group, the second pin and the third pin of the power chip are connected to a third node, and the third node The second capacitor group is grounded, the third node is also grounded via the third capacitor group, and the third node is also electrically connected to the encoder circuit and the main control circuit, respectively. 9. The computer input device of claim 1, wherein the computer input device further comprises: The display screen is electrically connected with the main control circuit and used to display the working parameters of the computer input device. 10. The computer input device of claim 1, wherein the computer input device further comprises: The indicating circuit is electrically connected with the main control circuit, and is used for entering a corresponding display state according to the operation instruction output by the main control circuit.

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