Remote controller circuit with singular digital-to-analog conversion chip supporting simulation of 8-path Hall effect

Abstract

The embodiment of the invention discloses a remote controller circuit with a single digital-to-analog conversion chip supporting simulation of eight Hall effects, which can support simulation of rockers or rollers in the form of eight Hall effects by using only one digital-to-analog conversion chip, and supports a switching function between a local mode and a remote mode. A small number of components are used, so that the circuit board is small in size, installation space is saved, and cost is saved; and the remote controller rocker or roller can be conveniently used for realizing complex application scenes with various functions.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of circuit control, and specifically to a remote control circuit for a single analog-to-digital conversion chip supporting analog 8-channel Hall effect. Background Art

[0002] At present, many devices use remote controls to control functions. The joysticks or rollers on remote controls basically output signals in two forms at present. One is a potentiometer, and the other is a Hall sensor. The advantage of using a Hall sensor is that it has higher accuracy, stronger anti-interference ability, and longer service life compared with a potentiometer. The disadvantage is that the price is more expensive than that of a potentiometer. However, due to the various advantages of the Hall sensor compared with the potentiometer, many remote controls now start to use the Hall sensor as the signal output of the joystick / roller.

[0003] In many application scenarios, during some key operations, manual operation of the joystick / roller is required, and then it is changed to the remote control mode. Therefore, the miniaturization and high integration of the joystick / roller remote control board become particularly important. Summary of the Invention

[0004] For this reason, the embodiments of the present invention provide a remote control circuit for a single analog-to-digital conversion chip supporting analog 8-channel Hall effect to solve the technical problems of large circuit board volume and high cost in the prior art by using multiple analog-to-digital conversion chips.

[0005] To achieve the above object, the embodiments of the present invention provide the following technical solutions:

[0006] According to the first aspect of the embodiments of the present invention, there is provided a remote control circuit for a single analog-to-digital conversion chip supporting analog 8-channel Hall effect. The remote control circuit is composed of a data processing circuit, a power supply buck circuit, an analog-to-digital conversion circuit, and an analog switch switching circuit, and specifically includes:

[0007] The data processing circuit is connected to the communication inside the remote control through a serial port for real-time communication with the host computer;

[0008] The external power supply unit is connected to the power supply buck circuit. The power supply buck circuit reduces the voltage of the external power supply unit through a linear voltage regulator chip to provide operating voltage for the data processing circuit, the analog-to-digital conversion circuit, and the analog switch switching circuit;

[0009] The data processing circuit is respectively connected to the communication inside the remote control and the analog-to-digital conversion circuit. The analog-to-digital conversion circuit is also connected to the analog switch switching circuit, and simultaneously outputs 8-channel joystick / roller analog signals in the form of Hall effect;

[0010] The analog switch circuit is connected to the communication inside the remote control and is used to switch between the local joystick / roller mode signal and the remote host computer communication signal.

[0011] Furthermore, the data processing circuit uses a 32-bit single-chip microcomputer to process digital signals and controls a digital-to-analog conversion chip to simulate the analog quantity of the joystick / roller, for controlling the remote control in the remote mode.

[0012] Furthermore, the data processing circuit is composed of a single-chip microcomputer U4, multiple surface-mounted resistors and multiple surface-mounted capacitors, and specifically includes:

[0013] Pin 1 of the single-chip microcomputer U4 is connected to the 3.3V network, pins 2, 3, 4, 5, 6 are floating, pin 7 is connected to the NRST network, pin 8 is connected to the GND network, pin 9 is connected to the 3.3V network, pin 10 is floating, pin 11 is connected to the S1 network, pin 12 is connected to the S2 network, pin 13 is connected to the S3 network, pin 14 is connected to the S4 network, pin 15 is connected to the OE1 network, pin 16 is connected to the OE2 network, pin 17 is connected to the OE3 network, pin 18 is connected to the OE4 network, pins 19, 20, 21, 22 are floating, pin 23 is connected to the GND network, pin 24 is connected to the 3.3V network, pin 25 is connected to the DAC_CS network, pin 26 is connected to the SPI1_SCK network, pin 27 is connected to the SPI1_MISO network, pin 28 is connected to the SPI1_MOSI network, pin 29 is floating, pin 30 is connected to the USART1_TX network, pin 31 is connected to the USART1_RX network, pins 32, 33, 34 are floating, pin 35 is connected to the GND network, pin 36 is connected to the 3.3V network, pins 37, 38, 39, 40, 41, 42, 43 are floating, pin 44 is connected to one end of the surface-mounted resistor with the reference number R12, pins 45, 46 are floating, pin 47 is connected to the GND network, pin 48 is connected to the 3.3V network; one end of the surface-mounted resistor with the reference number R12 is connected to the GND network; one end of the surface-mounted resistor with the reference number R5 is connected to the 3.3V network, and the other end is connected to one end of the surface-mounted capacitor with the reference number C12, and they are jointly connected to the NRST network; one end of the surface-mounted capacitor with the reference number C12 is connected to the GND network; one end of the surface-mounted resistor with the reference number R12 is connected to the GND network; one ends of the surface-mounted capacitors with the reference numbers C18, C19, C20, C21, C22, C23, C24, C25, C26, C27 are connected to the 3.3V network, and the other ends are connected to the GND network.

[0014] Furthermore, the power supply buck circuit is composed of a linear voltage regulator, surface-mounted capacitors, surface-mounted resistors, a chip fuse, a unidirectional TVS diode, an LED and a connector, and specifically includes:

[0015] Pin 1 of the linear voltage regulator with the reference number U9 is connected to the GND network. Pin 2 is connected to one end of the surface-mounted capacitor with the reference number C32 and one end of the surface-mounted capacitor with the reference number C33, and they are jointly connected to the 3.3V network. Pin 3 is connected to one end of the surface-mounted capacitor with the reference number C34 and one end of the surface-mounted capacitor with the reference number C35, and they are jointly connected to the 5V network. One end of the surface-mounted capacitors with the reference numbers C32, C33, C34, and C35 is connected to the GND network. One end of the surface-mounted resistor with the reference number R15 is connected to the 3.3V network, and the other end is connected to the anode of the light-emitting diode with the reference number LED2. The cathode of the light-emitting diode with the reference number LED2 is connected to the GND network. Pin 1 of the linear voltage regulator with the reference number U10 is connected to one end of the surface-mounted capacitor with the reference number C40, one end of the surface-mounted capacitor with the reference number C41, and one end of the surface-mounted fuse with the reference number F2, and they are jointly connected to the VIN network. Pin 3 is connected to the 5V network. Pin 4 is connected to one end of the surface-mounted capacitor with the reference number C40, one end of the surface-mounted capacitor with the reference number C41, the anode of the unidirectional TVS diode with the reference number D4, and pin 1 of the connector with the reference number CN7, and they are jointly connected to the GND network. One end of the surface-mounted fuse with the model number F2 is connected to the cathode of the unidirectional TVS diode with the reference number D4 and pin 2 of the connector with the reference number CN7.

[0016] Furthermore, the digital-to-analog conversion circuit consists of a digital-to-analog conversion chip, a voltage reference chip, surface-mounted capacitors, and surface-mounted resistors, and specifically includes:

[0017] Pin 1 of the voltage reference chip with designator U5 is connected to one end of the surface mount capacitor with designator C9 and one end of the surface mount capacitor with designator C13, and they are commonly connected to the 5V network. Pin 2 is connected to one end of the surface mount capacitors with designators C10 and C11, and is also connected to Pin 1 of the digital-to-analog conversion chip with designator U6. Pin 3 is connected to one end of the surface mount capacitors with designators C10, C11, C13, and C9, and they are commonly connected to the GND network. Pin 2 of the digital-to-analog conversion chip with designator U6 is connected to the DAC_OUT1 network, Pin 3 is connected to the DAC_OUT2 network, Pin 4 is connected to the DAC_OUT3 network, Pin 5 is connected to the DAC_OUT4 network, Pin 6 is connected to one end of the surface mount capacitors with designators C17 and C16, and they are commonly connected to the GND network. Pin 7 is connected to one end of the surface mount capacitors with designators C17 and C16, and they are commonly connected to the 5V network. Pin 8 is connected to the DAC_OUT5 network, Pin 9 is connected to the DAC_OUT6 network, Pin 10 is connected to the DAC_OUT7 network, Pin 11 is connected to the DAC_OUT8 network, Pin 12 is connected to one end of the surface mount resistor with designator R14, and they are commonly connected to the DAC_CS network. Pin 13 is connected to the SPI1_SCK network, Pin 14 is connected to the SPI1_MOSI network, Pin 15 is connected to one end of the surface mount resistor with designator R13, and they are commonly connected to the SPI1_MISO network. Pin 16 is connected to one end of the surface mount capacitors with designators C14 and C15, and they are commonly connected to the 3.3V network. Pin 17 is connected to one end of the surface mount capacitors with designators C14 and C15, and they are commonly connected to the GND network. One end of the surface mount resistor with designator R13 is connected to the 3.3V network. One end of the surface mount resistor with designator R14 is connected to the 3.3V network.

[0018] Further, the analog switch switching circuit is composed of 4 analog switch chips, surface mount capacitors and connectors, specifically including:

[0019] Pin 1 of the analog switch chip with designator U7 is connected to the S1 network, Pin 2 is connected to the IN1 network, Pin 3 is connected to the DAC_OUT1 network, Pin 4 is connected to the OUT1 network, Pin 5 is connected to the GND network, Pin 6 is connected to the OUT2 network, Pin 7 is connected to the DAC_OUT2 network, Pin 8 is connected to the IN2 network, Pin 9 is connected to the OE1 network, Pin 10 is connected to one end of the surface mount capacitors with designators C28 and C29, and they are commonly connected to the 3.3V network. The other ends of the two capacitors are commonly connected to the GND network. Pin 1 and Pin 4 of the connector with designator CN3 are connected to the GND network, Pin 2 is connected to the OUT1 network, Pin 3 is connected to the IN1 network, Pin 5 is connected to the OUT2 network, and Pin 6 is connected to the IN2 network.

[0020] Further, pin 1 of the analog switch chip numbered U8 is connected to the S2 network, pin 2 is connected to the IN3 network, pin 3 is connected to the DAC_OUT3 network, pin 4 is connected to the OUT3 network, pin 5 is connected to the GND network, pin 6 is connected to the OUT4 network, pin 7 is connected to the DAC_OUT4 network, pin 8 is connected to the IN4 network, pin 9 is connected to the OE2 network, and pin 10 is connected to one end of the surface-mounted capacitors numbered C30 and C31, which are commonly connected to the 3.3V network. The other ends of the two capacitors are commonly connected to the GND network; pins 1 and 4 of the connector numbered CN4 are connected to the GND network, pin 2 is connected to the OUT3 network, pin 3 is connected to the IN3 network, pin 5 is connected to the OUT4 network, and pin 6 is connected to the IN4 network.

[0021] Further, pin 1 of the analog switch chip numbered U11 is connected to the S3 network, pin 2 is connected to the IN5 network, pin 3 is connected to the DAC_OUT5 network, pin 4 is connected to the OUT5 network, pin 5 is connected to the GND network, pin 6 is connected to the OUT6 network, pin 7 is connected to the DAC_OUT6 network, pin 8 is connected to the IN6 network, pin 9 is connected to the OE3 network, and pin 10 is connected to one end of the surface-mounted capacitors numbered C36 and C37, which are commonly connected to the 3.3V network. The other ends of the two capacitors are commonly connected to the GND network; pins 1 and 4 of the connector numbered CN5 are connected to the GND network, pin 2 is connected to the OUT5 network, pin 3 is connected to the IN5 network, pin 5 is connected to the OUT6 network, and pin 6 is connected to the IN6 network.

[0022] Further, pin 1 of the analog switch chip numbered U12 is connected to the S4 network, pin 2 is connected to the IN7 network, pin 3 is connected to the DAC_OUT7 network, pin 4 is connected to the OUT7 network, pin 5 is connected to the GND network, pin 6 is connected to the OUT8 network, pin 7 is connected to the DAC_OUT8 network, pin 8 is connected to the IN8 network, pin 9 is connected to the OE4 network, and pin 10 is connected to one end of the surface-mounted capacitors numbered C38 and C39, which are commonly connected to the 3.3V network. The other ends of the two capacitors are commonly connected to the GND network; pins 1 and 4 of the connector numbered CN6 are connected to the GND network, pin 2 is connected to the OUT7 network, pin 3 is connected to the IN7 network, pin 5 is connected to the OUT8 network, and pin 6 is connected to the IN8 network.

[0023] Further, the analog switch switching circuit is also used to receive 8-channel rocker / roller analog signals in the form of Hall effect for remote control in the local mode.

[0024] The embodiments of the present invention have the following advantages:

[0025] An embodiment of the present invention can support simulating 8 joysticks or rollers in the form of Hall effect with only one digital-to-analog conversion chip, and also supports the switching function between the local mode and the remote mode of the joystick operation; the use of a small number of components makes the circuit board small in size, saves installation space, and thus saves costs; and it is convenient for complex application scenarios of using the remote control joystick to implement various functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can also be obtained according to the provided drawings.

[0027] The structures, ratios, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical essential significance. Any modification of the structure, change of the ratio relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that the technical content disclosed by the present invention can cover.

[0028] Figure 1 It is a schematic diagram of the overall architecture of a remote control circuit with a single digital-to-analog conversion chip supporting the simulation of 8-channel Hall effect provided by an embodiment of the present invention;

[0029] Figure 2 It is a power supply buck circuit diagram in a remote control circuit with a single digital-to-analog conversion chip supporting the simulation of 8-channel Hall effect provided by an embodiment of the present invention;

[0030] Figure 3 It is a data processing circuit in a remote control circuit with a single digital-to-analog conversion chip supporting the simulation of 8-channel Hall effect provided by an embodiment of the present invention;

[0031] Figure 4 It is a digital-to-analog conversion circuit in a remote control circuit with a single digital-to-analog conversion chip supporting the simulation of 8-channel Hall effect provided by an embodiment of the present invention;

[0032] Figure 5 It is an analog switch switching circuit in a remote control circuit with a single digital-to-analog conversion chip supporting the simulation of 8-channel Hall effect provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0034] Currently, many devices use remote controls to control functions. The joysticks or rollers on remote controls basically output signals in two forms at present. One is a potentiometer, and the other is a Hall sensor. The advantage of using a Hall sensor is that it has higher accuracy, stronger anti-interference ability, and longer service life compared with a potentiometer. The disadvantage is that the price is more expensive than that of a potentiometer. However, due to the multiple advantages of the Hall sensor compared with the potentiometer, many remote controls now start to use Hall sensors as the signal output for joysticks / rollers.

[0035] In many application scenarios, during some critical operations, manual operation of the joystick / roller is required, and then it is changed to the remote control mode. Therefore, the miniaturization and high integration of the joystick / roller remote control board become particularly important.

[0036] Analog circuit: An analog circuit refers to a circuit used for tasks such as transmitting, transforming, processing, amplifying, measuring, and displaying analog signals. An analog signal is a continuously varying electrical signal. Analog circuits are the foundation of electronic circuits and mainly include amplifier circuits, signal operation and processing circuits, oscillator circuits, modulation and demodulation circuits, and power supplies.

[0037] TTL level: The TTL level signal stipulates that +5V is equivalent to logic "1" and 0V is equivalent to logic "0" (when using binary to represent data). This way of data communication and level stipulation is called the TTL (Transistor-Transistor Logic level) signal system; it is the standard technology for communication between various parts inside devices controlled by computer processors.

[0038] Circuit board: The circuit board miniaturizes and visualizes the circuit, and plays an important role in the mass production of fixed circuits and the optimization of the layout of electrical appliances.

[0039] Chip: A general term for semiconductor component products.

[0040] Hall effect: It refers to the phenomenon that when a solid conductor is placed in a magnetic field and there is current passing through, the charge carriers in the conductor are deflected to one side by the Lorentz force, and then a voltage (Hall voltage) is generated.

[0041] In order to solve the technical problems of large circuit board volume and high cost caused by using multiple digital-to-analog conversion chips.

[0042] Reference Figure 1 In an embodiment of the present invention, a remote control circuit for a single analog-to-digital conversion chip supporting 8-channel analog Hall effect is disclosed. The remote control circuit is composed of a data processing circuit, a power supply step-down circuit, a digital-to-analog conversion circuit, and an analog switch switching circuit, and specifically includes: The data processing circuit is connected to the communication inside the remote control through a serial port for real-time communication with the host computer; an external power supply unit is connected to the power supply step-down circuit, and the power supply step-down circuit reduces the voltage of the external power supply unit through a linear voltage regulator chip to provide operating voltages for the data processing circuit, the digital-to-analog conversion circuit, and the analog switch switching circuit; the data processing circuit is respectively connected to the communication inside the remote control and the digital-to-analog conversion circuit, and the digital-to-analog conversion circuit is also connected to the analog switch switching circuit, and simultaneously outputs 8-channel rocker / roller analog signals in the form of Hall effect; the analog switch switching circuit is connected to the communication inside the remote control for switching between the local rocker / roller mode signal and the remote host computer communication signal.

[0043] Reference Figure 2 The power supply step-down circuit uses a high-performance linear voltage regulator chip to step down the voltage of the external power supply to meet the circuit operating voltage inside the circuit board.

[0044] As Figure 2 shown, pin 1 of the linear voltage regulator with the model number AMS1117-3.3 of U9 is connected to the GND network, pin 2 is connected to one end of the chip capacitor C32 and one end of the chip capacitor C33, and they are jointly connected to the 3.3V network. Pin 3 is connected to one end of the chip capacitor C34 and one end of the chip capacitor C35, and they are jointly connected to the 5V network; one ends of the chip capacitors C32, C33, C34, and C35 are connected to the GND network; one end of the chip resistor R15 is connected to the 3.3V network, and the other end is connected to the anode of the light-emitting diode LED2; the cathode of the light-emitting diode LED2 is connected to the GND network; pin 1 of the linear voltage regulator with the model number L78M05ABDT-TR of U10 is connected to one end of the chip capacitor C40, one end of the chip capacitor C41, and one end of the chip fuse F2 with the model number BSMD1206-050-30V, and they are jointly connected to the VIN network. Pin 3 is connected to the 5V network, and pin 4 is connected to one end of the chip capacitor C40, one end of the chip capacitor C41, the anode of the unidirectional TVS diode D4, and pin 1 of the connector CN7 with the model number XT30UPB-M, and they are jointly connected to the GND network; one end of the chip fuse F2 with the model number BSMD1206-050-30V is connected to the cathode of the unidirectional TVS diode D4 and pin 2 of the connector CN7 with the model number XT30UPB-M.

[0045] Further, the data processing circuit uses a 32-bit single-chip microcomputer to process digital signals and controls a digital-to-analog conversion chip to simulate the analog quantity of the joystick / roller, for controlling the remote controller in the remote mode.

[0046] Further, referring to Figure 3 , the data processing circuit uses a 32-bit high-performance single-chip microcomputer to process digital signals, controls the digital-to-analog conversion chip to simulate the analog quantity of the joystick, for controlling the remote controller in the remote mode, and is connected to the internal communication of the remote controller through a serial port for real-time communication with the host computer.

[0047] As Figure 3 shown, pin 1 of the single-chip microcomputer with the model number STM32F103C8T6 at reference number U4 is connected to the 3.3V network, pins 2, 3, 4, 5, 6 are floating, pin 7 is connected to the NRST network, pin 8 is connected to the GND network, pin 9 is connected to the 3.3V network, pin 10 is floating, pin 11 is connected to the S1 network, pin 12 is connected to the S2 network, pin 13 is connected to the S3 network, pin 14 is connected to the S4 network, pin 15 is connected to the OE1 network, pin 16 is connected to the OE2 network, pin 17 is connected to the OE3 network, pin 18 is connected to the OE4 network, pins 19, 20, 21, 22 are floating, pin 23 is connected to the GND network, pin 24 is connected to the 3.3V network, pin 25 is connected to the DAC_CS network, pin 26 is connected to the SPI1_SCK network, pin 27 is connected to the SPI1_MISO network, pin 28 is connected to the SPI1_MOSI network, pin 29 is floating, pin 30 is connected to the USART1_TX network, pin 31 is connected to the USART1_RX network, pins 32, 33, 34 are floating, pin 35 is connected to the GND network, pin 36 is connected to the 3.3V network, pins 37, 38, 39, 40, 41, 42, 43 are floating, pin 44 is connected to one end of the surface mount resistor at reference number R12, pins 45, 46 are floating, pin 47 is connected to the GND network, pin 48 is connected to the 3.3V network; one end of the surface mount resistor at reference number R12 is connected to the GND network; one end of the surface mount resistor at reference number R5 is connected to the 3.3V network, and the other end is connected to one end of the surface mount capacitor at reference number C12, and they are jointly connected to the NRST network; one end of the surface mount capacitor at reference number C12 is connected to the GND network; one end of the surface mount resistor at reference number R12 is connected to the GND network; one end of the surface mount capacitors at reference numbers C18, C19, C20, C21, C22, C23, C24, C25, C26, C27 is connected to the 3.3V network, and the other end is connected to the GND network.

[0048] Further, referring to Figure 4, the digital-to-analog conversion circuit uses a high-performance and highly integrated digital-to-analog conversion chip. This chip can output 8 channels of analog signals simultaneously. Together with the external voltage reference chip, it makes the analog quantity output by the digital-to-analog conversion chip more accurate.

[0049] As Figure 4 shown, pin 1 of the voltage reference source chip with the model number REF3030AIDBZR and the component identifier U5 is connected to one end of the chip capacitor with the component identifier C9 and one end of the chip capacitor with the component identifier C13, and they are jointly connected to the 5V network. Pin 2 is connected to one end of the chip capacitors with the component identifiers C10 and C11, and is also connected to pin 1 of the digital-to-analog conversion chip with the model number DCA60508ZRTER and the component identifier U6. Pin 3 is connected to one end of the chip capacitors with the component identifiers C10, C11, C13, and C9, and they are jointly connected to the GND network; pin 2 of the digital-to-analog conversion chip with the model number DCA60508ZRTER and the component identifier U6 is connected to the DAC_OUT1 network, pin 3 is connected to the DAC_OUT2 network, pin 4 is connected to the DAC_OUT3 network, pin 5 is connected to the DAC_OUT4 network, pin 6 is connected to one end of the chip capacitors with the component identifiers C17 and C16, and they are jointly connected to the GND network, pin 7 is connected to one end of the chip capacitors with the component identifiers C17 and C16, and they are jointly connected to the 5V network, pin 8 is connected to the DAC_OUT5 network, pin 9 is connected to the DAC_OUT6 network, pin 10 is connected to the DAC_OUT7 network, pin 11 is connected to the DAC_OUT8 network, pin 12 is connected to one end of the chip resistor with the component identifier R14, and they are jointly connected to the DAC_CS network, pin 13 is connected to the SPI1_SCK network, pin 14 is connected to the SPI1_MOSI network, pin 15 is connected to one end of the chip resistor with the component identifier R13, and they are jointly connected to the SPI1_MISO network, pin 16 is connected to one end of the chip capacitors with the component identifiers C14 and C15, and they are jointly connected to the 3.3V network, pin 17 is connected to one end of the chip capacitors with the component identifiers C14 and C15, and they are jointly connected to the GND network; one end of the chip resistor with the component identifier R13 is connected to the 3.3V network; one end of the chip resistor with the component identifier R14 is connected to the 3.3V network.

[0050] Furthermore, referring to Figure 5 , the analog switch circuit uses 4 highly efficient analog switches to switch between the signal outputs of the 8-way joystick itself and the signals output by the microcontroller-controlled digital-to-analog conversion chip, so as to achieve the function switching between manual operation of the joystick (local mode) and communication between the host computer and the circuit board to simulate the joystick signal to control the remote controller (remote mode).

[0051] As Figure 5As shown, pin 1 of the analog switch chip U7 with the model number RS2228XN is connected to the S1 network, pin 2 is connected to the IN1 network, pin 3 is connected to the DAC_OUT1 network, pin 4 is connected to the OUT1 network, pin 5 is connected to the GND network, pin 6 is connected to the OUT2 network, pin 7 is connected to the DAC_OUT2 network, pin 8 is connected to the IN2 network, pin 9 is connected to the OE1 network, and pin 10 is connected to one end of the chip capacitors C28 and C29, which are commonly connected to the 3.3V network. The other ends of the two capacitors are commonly connected to the GND network. For the connector CN3 with the model number HC-1.25-6A, pin 1 and pin 4 are connected to the GND network, pin 2 is connected to the OUT1 network, pin 3 is connected to the IN1 network, pin 5 is connected to the OUT2 network, and pin 6 is connected to the IN2 network;

[0052] Pin 1 of the analog switch chip U8 with the model number RS2228XN is connected to the S2 network, pin 2 is connected to the IN3 network, pin 3 is connected to the DAC_OUT3 network, pin 4 is connected to the OUT3 network, pin 5 is connected to the GND network, pin 6 is connected to the OUT4 network, pin 7 is connected to the DAC_OUT4 network, pin 8 is connected to the IN4 network, pin 9 is connected to the OE2 network, and pin 10 is connected to one end of the chip capacitors C30 and C31, which are commonly connected to the 3.3V network. The other ends of the two capacitors are commonly connected to the GND network. For the connector CN4 with the model number HC-1.25-6A, pin 1 and pin 4 are connected to the GND network, pin 2 is connected to the OUT3 network, pin 3 is connected to the IN3 network, pin 5 is connected to the OUT4 network, and pin 6 is connected to the IN4 network;

[0053] Pin 1 of the analog switch chip U11 with the model number RS2228XN is connected to the S3 network, pin 2 is connected to the IN5 network, pin 3 is connected to the DAC_OUT5 network, pin 4 is connected to the OUT5 network, pin 5 is connected to the GND network, pin 6 is connected to the OUT6 network, pin 7 is connected to the DAC_OUT6 network, pin 8 is connected to the IN6 network, pin 9 is connected to the OE3 network, and pin 10 is connected to one end of the chip capacitors C36 and C37, which are commonly connected to the 3.3V network. The other ends of the two capacitors are commonly connected to the GND network. For the connector CN5 with the model number HC-1.25-6A, pin 1 and pin 4 are connected to the GND network, pin 2 is connected to the OUT5 network, pin 3 is connected to the IN5 network, pin 5 is connected to the OUT6 network, and pin 6 is connected to the IN6 network;

[0054] Pin 1 of the analog switch chip with model number RS2228XN and designator U12 is connected to the S4 network, pin 2 is connected to the IN7 network, pin 3 is connected to the DAC_OUT7 network, pin 4 is connected to the OUT7 network, pin 5 is connected to the GND network, pin 6 is connected to the OUT8 network, pin 7 is connected to the DAC_OUT8 network, pin 8 is connected to the IN8 network, pin 9 is connected to the OE4 network, and pin 10 is connected to one end of the chip capacitors with designators C38 and C39, which are commonly connected to the 3.3V network. The other ends of the two capacitors are commonly connected to the GND network. Pins 1 and 4 of the connector with model number HC-1.25-6A and designator CN6 are connected to the GND network, pin 2 is connected to the OUT7 network, pin 3 is connected to the IN7 network, pin 5 is connected to the OUT8 network, and pin 6 is connected to the IN8 network.

[0055] Furthermore, the analog switch switching circuit is also used to receive 8-channel Hall effect-based joystick / roller analog signals for remote control in the local mode.

[0056] The embodiments of the present invention have the following advantages:

[0057] Only one digital-to-analog conversion chip is used to support the simulation of 8 Hall effect-based joysticks or rollers, and it also supports the switching function between the local mode and the remote mode of the joystick operation. The use of a small number of components makes the circuit board small in size, saving installation space and thus cost. Moreover, it is convenient for complex application scenarios of using the remote control joystick to implement various functions.

[0058] Although the present invention has been described in detail with general descriptions and specific embodiments above, based on the present invention, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection required by the present invention.

Claims

1. A single-mode conversion chip supports a remote control circuit for 8-channel analog Hall effect, characterized in that The remote control circuit is composed of a data processing circuit, a power supply step-down circuit, a digital-to-analog conversion circuit, and an analog switch switching circuit, and specifically includes: The data processing circuit is connected to the communication inside the remote control through a serial port, and is used for real-time communication with the host computer; The external power supply unit is connected to the power supply step-down circuit. The power supply step-down circuit reduces the voltage of the external power supply unit through a linear voltage regulator chip to provide operating voltages for the data processing circuit, the digital-to-analog conversion circuit, and the analog switch switching circuit; The data processing circuit is respectively connected to the communication inside the remote control and the digital-to-analog conversion circuit. The digital-to-analog conversion circuit is also connected to the analog switch switching circuit, and simultaneously outputs 8-way rocker / roller analog signals in the form of Hall effect; The analog switch switching circuit is connected to the communication inside the remote control, and is used for switching between the local rocker / roller mode signal and the remote host computer communication signal.

2. A remote control circuit for a single-mode conversion chip supporting 8-channel analog Hall effect as described in claim 1, characterized in that The data processing circuit uses a 32-bit single-chip microcomputer to process digital signals and controls a digital-to-analog conversion chip to simulate the rocker / roller analog quantity, and is used to control the remote control in the remote mode.

3. A remote control circuit for a single-mode conversion chip supporting 8-channel analog Hall effect as claimed in claim 2, characterized in that The data processing circuit is composed of a single-chip microcomputer U4, multiple surface-mounted resistors, and multiple surface-mounted capacitors, and specifically includes: Pin 1 of the microcontroller U4 is connected to the 3.3V network, pins 2, 3, 4, 5, and 6 are floating, pin 7 is connected to the NRST network, pin 8 is connected to the GND network, pin 9 is connected to the 3.3V network, pin 10 is floating, pin 11 is connected to the S1 network, pin 12 is connected to the S2 network, pin 13 is connected to the S3 network, pin 14 is connected to the S4 network, pin 15 is connected to the OE1 network, pin 16 is connected to the OE2 network, pin 17 is connected to the OE3 network, pin 18 is connected to the OE4 network, pins 19, 20, 21, and 22 are floating, pin 23 is connected to the GND network, pin 24 is connected to the 3.3V network, pin 25 is connected to the DAC_CS network, pin 26 is connected to the SPI1_SCK network, pin 27 is connected to the SPI1_MISO network, pin 28 is connected to the SPI1_MOSI network, pin 29 is floating, pin 30 is connected to the USART1_TX network, pin 31 is connected to the USART1_RX network, pins 32, 33, and 34 are floating, pin 35 is connected to the GND network, pin 36 is connected to the 3.3V network, pins 37, 38, 39, 40, 41, 42, and 43 are floating, pin 44 is connected to one end of the surface-mount resistor with the reference number R12, pins 45 and 46 are floating, pin 47 is connected to the GND network, pin 48 is connected to the 3.3V network; one end of the surface-mount resistor with the reference number R12 is connected to the GND network; one end of the surface-mount resistor with the reference number R5 is connected to the 3.3V network, and the other end is connected to one end of the surface-mount capacitor with the reference number C12, and they are jointly connected to the NRST network; one end of the surface-mount capacitor with the reference number C12 is connected to the GND network; one end of the surface-mount resistor with the reference number R12 is connected to the GND network; one end of the surface-mount capacitors with the reference numbers C18, C19, C20, C21, C22, C23, C24, C25, C26, and C27 is connected to the 3.3V network, and the other end is connected to the GND network.

4. A remote control circuit for a single-mode conversion chip supporting 8-channel analog Hall effect as described in claim 1, characterized in that The power supply step-down circuit consists of a linear voltage regulator, surface-mount capacitors, surface-mount resistors, a chip fuse, a unidirectional TVS diode, an LED, and a connector, and specifically includes: Pin 1 of the linear voltage regulator with the reference number U9 is connected to the GND network. Pin 2 is connected to one end of the surface-mounted capacitor with the reference number C32 and one end of the surface-mounted capacitor with the reference number C33, and they are jointly connected to the 3.3V network. Pin 3 is connected to one end of the surface-mounted capacitor with the reference number C34 and one end of the surface-mounted capacitor with the reference number C35, and they are jointly connected to the 5V network. One end of the surface-mounted capacitors with the reference numbers C32, C33, C34, and C35 is connected to the GND network. One end of the surface-mounted resistor with the reference number R15 is connected to the 3.3V network, and the other end is connected to the anode of the light-emitting diode with the reference number LED2. The cathode of the light-emitting diode with the reference number LED2 is connected to the GND network. Pin 1 of the linear voltage regulator with the reference number U10 is connected to one end of the surface-mounted capacitor with the reference number C40, one end of the surface-mounted capacitor with the reference number C41, and one end of the surface-mounted fuse with the reference number F2, and they are jointly connected to the VIN network. Pin 3 is connected to the 5V network. Pin 4 is connected to one end of the surface-mounted capacitor with the reference number C40, one end of the surface-mounted capacitor with the reference number C41, the anode of the unidirectional TVS diode with the reference number D4, and pin 1 of the connector with the reference number CN7, and they are jointly connected to the GND network. One end of the surface-mounted fuse with the reference number F2 is connected to the cathode of the unidirectional TVS diode with the reference number D4 and pin 2 of the connector with the reference number CN7.

5. A remote control circuit for a single-mode conversion chip supporting 8-channel analog Hall effect as claimed in claim 1, characterized in that, The digital-to-analog conversion circuit consists of a digital-to-analog conversion chip, a voltage reference chip, surface-mounted capacitors, and surface-mounted resistors, and specifically includes: Pin 1 of the voltage reference chip with the reference number U5 is connected to one end of the surface-mounted capacitor with the reference number C9 and one end of the surface-mounted capacitor with the reference number C13, and they are commonly connected to the 5V network. Pin 2 is connected to one end of the surface-mounted capacitors with the reference numbers C10 and C11, and is connected to Pin 1 of the digital-to-analog conversion chip with the reference number U6. Pin 3 is connected to one end of the surface-mounted capacitors with the reference numbers C10, C11, C13, and C9, and they are commonly connected to the GND network; Pin 2 of the digital-to-analog conversion chip with the reference number U6 is connected to the DAC_OUT1 network, Pin 3 is connected to the DAC_OUT2 network, Pin 4 is connected to the DAC_OUT3 network, Pin 5 is connected to the DAC_OUT4 network, Pin 6 is connected to one end of the surface-mounted capacitors with the reference numbers C17 and C16, and they are commonly connected to the GND network, Pin 7 is connected to one end of the surface-mounted capacitors with the reference numbers C17 and C16, and they are commonly connected to the 5V network, Pin 8 is connected to the DAC_OUT5 network, Pin 9 is connected to the DAC_OUT6 network, Pin 10 is connected to the DAC_OUT7 network, Pin 11 is connected to the DAC_OUT8 network, Pin 12 is connected to one end of the surface-mounted resistor with the reference number R14, and they are commonly connected to the DAC_CS network, Pin 13 is connected to the SPI1_SCK network, Pin 14 is connected to the SPI1_MOSI network, Pin 15 is connected to one end of the surface-mounted resistor with the reference number R13, and they are commonly connected to the SPI1_MISO network, Pin 16 is connected to one end of the surface-mounted capacitors with the reference numbers C14 and C15, and they are commonly connected to the 3.3V network, Pin 17 is connected to one end of the surface-mounted capacitors with the reference numbers C14 and C15, and they are commonly connected to the GND network; One end of the surface-mounted resistor with the reference number R13 is connected to the 3.3V network; One end of the surface-mounted resistor with the reference number R14 is connected to the 3.3V network.

6. A remote control circuit for a single-mode conversion chip supporting 8-channel analog Hall effect as described in claim 1, characterized in that The analog switch switching circuit consists of 4 analog switch chips, surface-mounted capacitors and connectors, specifically including: Pin 1 of the analog switch chip with the reference number U7 is connected to the S1 network, Pin 2 is connected to the IN1 network, Pin 3 is connected to the DAC_OUT1 network, Pin 4 is connected to the OUT1 network, Pin 5 is connected to the GND network, Pin 6 is connected to the OUT2 network, Pin 7 is connected to the DAC_OUT2 network, Pin 8 is connected to the IN2 network, Pin 9 is connected to the OE1 network, Pin 10 is connected to one end of the surface-mounted capacitors with the reference numbers C28 and C29, and they are commonly connected to the 3.3V network, and the other ends of the two capacitors are commonly connected to the GND network; Pins 1 and 4 of the connector with the reference number CN3 are connected to the GND network, Pin 2 is connected to the OUT1 network, Pin 3 is connected to the IN1 network, Pin 5 is connected to the OUT2 network, and Pin 6 is connected to the IN2 network.

7. A remote control circuit for a single-mode conversion chip supporting 8-channel analog Hall effect as described in claim 6, characterized in that, Pin 1 of the analog switch chip with designator U8 is connected to the S2 network, pin 2 is connected to the IN3 network, pin 3 is connected to the DAC_OUT3 network, pin 4 is connected to the OUT3 network, pin 5 is connected to the GND network, pin 6 is connected to the OUT4 network, pin 7 is connected to the DAC_OUT4 network, pin 8 is connected to the IN4 network, pin 9 is connected to the OE2 network, and pin 10 is connected to one end of the surface-mounted capacitors with designators C30 and C31, which are commonly connected to the 3.3V network. The other ends of the two capacitors are commonly connected to the GND network. Pin 1 and pin 4 of the connector with designator CN4 are connected to the GND network, pin 2 is connected to the OUT3 network, pin 3 is connected to the IN3 network, pin 5 is connected to the OUT4 network, and pin 6 is connected to the IN4 network.

8. A remote control circuit for a single analog-to-digital conversion chip supporting 8-channel analog Hall effect, as claimed in claim 7, wherein Pin 1 of the analog switch chip with designator U11 is connected to the S3 network, pin 2 is connected to the IN5 network, pin 3 is connected to the DAC_OUT5 network, pin 4 is connected to the OUT5 network, pin 5 is connected to the GND network, pin 6 is connected to the OUT6 network, pin 7 is connected to the DAC_OUT6 network, pin 8 is connected to the IN6 network, pin 9 is connected to the OE3 network, and pin 10 is connected to one end of the surface-mounted capacitors with designators C36 and C37, which are commonly connected to the 3.3V network. The other ends of the two capacitors are commonly connected to the GND network. Pin 1 and pin 4 of the connector with designator CN5 are connected to the GND network, pin 2 is connected to the OUT5 network, pin 3 is connected to the IN5 network, pin 5 is connected to the OUT6 network, and pin 6 is connected to the IN6 network.

9. A remote control circuit for a single-mode conversion chip supporting 8-channel analog Hall effect as described in claim 8, characterized in that, Pin 1 of the analog switch chip with designator U12 is connected to the S4 network, pin 2 is connected to the IN7 network, pin 3 is connected to the DAC_OUT7 network, pin 4 is connected to the OUT7 network, pin 5 is connected to the GND network, pin 6 is connected to the OUT8 network, pin 7 is connected to the DAC_OUT8 network, pin 8 is connected to the IN8 network, pin 9 is connected to the OE4 network, and pin 10 is connected to one end of the surface-mounted capacitors with designators C38 and C39, which are commonly connected to the 3.3V network. The other ends of the two capacitors are commonly connected to the GND network. Pin 1 and pin 4 of the connector with designator CN6 are connected to the GND network, pin 2 is connected to the OUT7 network, pin 3 is connected to the IN7 network, pin 5 is connected to the OUT8 network, and pin 6 is connected to the IN8 network.

10. A remote control circuit for a single-mode conversion chip supporting 8-channel analog Hall effect as described in claim 1 or 6, characterized in that The analog switch switching circuit is also used to receive 8-channel rocker / roller analog signals in the form of Hall effect for remote control in the local mode.

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