2.4 ghz high frequency head transmitter

Abstract

The utility model discloses a kind of 2.4GHz high frequency head transmitter, it is related to the technical field of unmanned vehicle, including main control module, radio frequency module and power module, radio frequency module and power module are electrically connected with main control module;Main control module is the main control circuit with model as XYO-2481 main control chip, radio frequency module is the radio frequency circuit with model as XYO-3318 radio frequency chip, in the utility model, by main control module can realize integrated high frequency signal processing, cooperate radio frequency module can realize to signal modulation and demodulation, while carrying out data packing hardware processing, the control instruction lag problem caused by the low refresh rate of existing market product, high delay, can realize the instruction refresh rate of highest 1000Hz and the end-to-end communication delay of lowest to 150 microsecond, improve the practicability of the emitter.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a 2.4GHz high-frequency head transmitter. Background Technology

[0002] Unmanned aerial vehicles (UAVs), also known as drones, are unmanned aircraft controlled by radio remote control equipment and their own program control devices. The term "UAV" is actually a general term for unmanned aerial vehicles, which, from a technical perspective, can be categorized as: unmanned fixed-wing aircraft, unmanned vertical takeoff and landing aircraft, unmanned airships, unmanned helicopters, unmanned multi-rotor aircraft, and unmanned paragliders, among others.

[0003] In order to effectively and accurately control drones, a controller capable of high-frequency signal processing is needed for remote control. However, since most controllers on the market suffer from low refresh rates and high latency, resulting in lagging control commands, it is imperative to design a controller with a high refresh rate and low latency. Utility Model Content

[0004] To overcome the above-mentioned shortcomings, this utility model provides a 2.4GHz high-frequency head transmitter.

[0005] This utility model achieves the above objectives through the following technical solutions: A 2.4GHz high-frequency head transmitter includes a main control module, an RF module, and a power module, wherein the RF module and the power module are both electrically connected to the main control module; The main control module is a main control circuit based on the main control chip of model XYO-2481, and the radio frequency module is a radio frequency circuit based on the radio frequency chip of model XYO-3318.

[0006] Preferably, the device also includes a display module electrically connected to a display screen. The display module includes display peripheral circuitry, and both the main control chip and the display peripheral circuitry are electrically connected to the display screen. The display screen is a 1.9-inch color display screen with dimensions of 240x280px, which can provide detailed indication of the relevant operating status of the emitter.

[0007] Preferably, the display screen is model HJ096NT01G. The first to seventh terminals of the display screen are electrically connected to the input and output terminals of the main control chip, respectively. The peripheral circuit of the display screen includes a first capacitor and a second resistor. The eighth, eleventh and thirteenth terminals of the display screen are grounded. The tenth terminal of the display screen is connected to an external 3.3V DC power supply. The tenth terminal of the display screen is grounded through the first capacitor. The twelfth terminal of the display screen is connected to an external 3.3V DC power supply through the second resistor.

[0008] Preferably, the module also includes a button module and an indicator module. The main control module is electrically connected to control buttons through the button module, and the main control module is electrically connected to indicator lights through the indicator module.

[0009] Preferably, the indicator module includes a first resistor. The output terminal of the main control chip is connected to a 3.3V DC power supply through an indicator light and the first resistor. The indicator light is a light-emitting diode, and the first resistor is a current-limiting resistor, which can provide limit protection for the light-emitting diode.

[0010] Preferably, the power module includes a power circuit, which includes a power chip, model SY8368A. The fourth terminal of the power chip is connected to an external power supply. The fourth terminal of the power chip is grounded through a third capacitor. The fourth terminal of the power chip is electrically connected to the fifth, sixth, and twelfth terminals. The first and third terminals of the power chip are both grounded. The seventh terminal of the power chip is electrically connected to the second terminal of the power chip through a second capacitor. The second terminal of the power chip is grounded through a first inductor, a fourth resistor, and a fifth resistor. The fourth resistor is connected in parallel with a series circuit consisting of the fourth capacitor and the third resistor. The ninth terminal of the power chip is grounded through the fifth resistor.

[0011] Preferably, the RF circuit includes an RF chip and an antenna. The RF chip is model XYO-3318. The first terminal of the RF chip is electrically connected to the receiving terminal of the antenna, and the ground terminal of the antenna is grounded. The second, ninth, twenty-third, and twenty-fourth terminals of the RF chip are all grounded. The tenth terminal of the RF chip is connected to an external 5V DC power supply, and the twenty-second terminal is connected to an external 3.3V DC power supply. The XYO-3318 is a highly integrated single-chip product that integrates a low-power 802.11ax wireless LAN (WLAN) and Bluetooth (BLE) controller. This chip integrates modules including a high-performance ARM China Star SE microcontroller, a WLAN MAC, a WLAN baseband with 1TIR functionality, RF, and Bluetooth modules. Furthermore, it provides a large number of configurable GPIO pins, which can be configured as digital peripherals suitable for various applications and control purposes; thus, communication with the receiver can be achieved through the RF chip, antenna, and external resistors and capacitors.

[0012] The beneficial effects of this utility model are as follows: In this 2.4GHz high-frequency head transmitter, the main control module can realize integrated high-frequency signal processing, and the radio frequency module can realize signal modulation and demodulation. At the same time, it can perform hardware processing of data packaging, which effectively solves the problem of control command lag caused by low refresh rate and high latency in existing products on the market. It can achieve a maximum command refresh rate of 1000Hz and a minimum end-to-end communication latency of 150 microseconds, thus improving the practicality of the transmitter. Attached Figure Description

[0013] This utility model will be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 This is a system schematic diagram of this utility model; Figure 2 This is the circuit schematic diagram of the main control chip of this utility model; Figure 3 This is a circuit diagram of the display peripheral circuit and display screen of this utility model; Figure 4 This is the circuit schematic diagram of the button module of this utility model; Figure 5 This is a circuit diagram of the indicator module of this utility model; Figure 6 This is the circuit schematic diagram of the radio frequency circuit of this utility model; Figure 7 This is the circuit diagram of the power supply circuit of this utility model. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0015] like Figures 1-7 As shown, a 2.4GHz high-frequency head transmitter includes a main control module, an RF module, and a power supply module, both of which are electrically connected to the main control module. The main control module is a main control circuit based on the main control chip U1 of model XYO-2481, and the radio frequency module is a radio frequency circuit based on the radio frequency chip U3 of model XYO-3318.

[0016] The power module provides a stable power supply for the entire device, while the main control module controls the two radio frequency modules to communicate with the receiver.

[0017] The 2.4GHz LNB transmitter has the following characteristics: 1. Frequency range: 2,400 MHz – 2,483 MHz; 2. Display screen: 1.9-inch color display screen, 240x280px; 3. Supports WiFi and Bluetooth, and USB (for setup and firmware upgrades). 4. Five-way navigation keys, 3 shortcut buttons, and 3 RGB lights; 4. Supports communication between dual modules, dual antennas, and the receiver; 5. Supports data transmission rates from 1Mbps to 54Mbps; 6. Supports carrier band reception and transmission, improving signal transmission distance and stability; 7. Supports fast and accurate effective signal monitoring (PJD, RSSI); built-in security engine uses globally unique MAC addresses. 8. Supports fast and stable automatic frequency correction (AFC); 9. Supports receiving CRSF protocol data with a high refresh rate of up to 1KHz from the remote control; 10. Supports control of multiple drones; 11. Supports remote switching of one 4.5V-40V 2A power supply, which can be used to switch the power supply equipment of racing drones on and off (e.g., control the analog image transmission switch, quickly switch the image transmission view, and thus accurately control another drone).

[0018] Therefore, in this 2.4GHz LNB transmitter, the main control module integrates high-frequency signal processing and performs chip-level hardware optimization on the signal modulation and demodulation and data packaging process. This effectively solves the problem of control command lag caused by low refresh rate and high latency in existing products on the market. It can achieve a maximum command refresh rate of 1000Hz and a minimum end-to-end communication latency of 150 microseconds, which greatly improves the control accuracy and real-time response capability of drones, especially racing drones and model drones, in high-speed flight.

[0019] Specifically, it also includes a display module, which is electrically connected to a display screen. The display module includes display peripheral circuitry. The main control chip and display peripheral circuitry are both electrically connected to the display screen LED1. The display screen LED1 is a 1.9-inch color display screen with dimensions of 240x280px, which can provide detailed indication of the relevant working status of the emitter.

[0020] Specifically, the LED1 of the display screen is model HJ096NT01G. The first to seventh terminals of the LED1 are electrically connected to the input and output terminals of the main control chip U1, respectively. The peripheral circuit of the display screen includes a first capacitor C1 and a second resistor R2. The eighth, eleventh, and thirteenth terminals of the LED1 are grounded. The tenth terminal of the LED1 is connected to an external 3.3V DC power supply. The tenth terminal of the LED1 is grounded through the first capacitor C1. The twelfth terminal of the LED1 is connected to an external 3.3V DC power supply through the second resistor R2.

[0021] Specifically, it also includes a button module and an indicator module. The main control module is electrically connected to the control button S1 through the button module, and the main control module is electrically connected to the indicator light through the indicator module.

[0022] Specifically, the indicator module includes a first resistor R1. The output terminal of the main control chip U1 is connected to an external 3.3V DC power supply through the indicator light and the first resistor R1. The indicator light is a light-emitting diode LED1, and the first resistor R1 is a current-limiting resistor, which can provide limit protection for the light-emitting diode LED1.

[0023] Specifically, the power module includes a power circuit, which includes a power chip U2, model SY8368A. The fourth terminal of the power chip U2 is connected to an external power supply. The fourth terminal of the power chip U2 is grounded through the third capacitor C3. The fourth terminal of the power chip U2 is electrically connected to the fifth, sixth, and twelfth terminals. The first and third terminals of the power chip U2 are both grounded. The seventh terminal of the power chip U2 is electrically connected to the second terminal of the power chip U2 through the second capacitor C2. The second terminal of the power chip U2 is grounded through the first inductor, the fourth resistor R4, and the fifth resistor R5. The fourth resistor R4 is connected in parallel with a series circuit consisting of the fourth capacitor C4 and the third resistor R3. The ninth terminal of the power chip U2 is grounded through the fifth resistor R5.

[0024] Specifically, the radio frequency (RF) circuit includes an RF chip U3 and an antenna CONT1. The RF chip U3 is model XYO-3318. The first terminal of the RF chip U3 is electrically connected to the receiving terminal of the antenna CONT1. The ground terminal of the antenna CONT1 is grounded. The second, ninth, twenty-third, and twenty-fourth terminals of the RF chip U3 are all grounded. The tenth terminal of the RF chip U3 is connected to an external 5V DC power supply, and the twenty-second terminal is connected to an external 3.3V DC power supply. The XYO-3318 is a highly integrated single-chip product that integrates a low-power 802.11ax wireless LAN (WLAN) and Bluetooth BLE controller. This chip integrates modules including a high-performance ARM China Star SE microcontroller, a WLAN MAC, a WLAN baseband with 1TIR functionality, RF, and Bluetooth modules. Furthermore, it provides a large number of configurable GPIO pins, which can be configured as digital peripherals suitable for various applications and control uses; thus, communication with the receiver can be achieved through the RF chip U3, the antenna CONT1, and external resistors and capacitors.

[0025] Based on the above description and inspired by this utility model, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A 2.4GHz LNB transmitter, characterized in that: It includes a main control module, an RF module, and a power module, with the RF module and power module both electrically connected to the main control module; The main control module is a main control circuit based on the main control chip of model XYO-2481, and the radio frequency module is a radio frequency circuit based on the radio frequency chip of model XYO-3318.

2. The 2.4GHz LNB transmitter according to claim 1, characterized in that: It also includes a display module, which is electrically connected to a display screen. The display module includes display peripheral circuitry, and both the main control chip and the display peripheral circuitry are electrically connected to the display screen.

3. The 2.4GHz LNB transmitter according to claim 2, characterized in that: The display screen is model HJ096NT01G. The first to seventh terminals of the display screen are electrically connected to the input and output terminals of the main control chip, respectively. The peripheral circuit of the display screen includes a first capacitor and a second resistor. The eighth, eleventh and thirteenth terminals of the display screen are grounded. The tenth terminal of the display screen is connected to an external 3.3V DC power supply. The tenth terminal of the display screen is grounded through the first capacitor. The twelfth terminal of the display screen is connected to an external 3.3V DC power supply through the second resistor.

4. The 2.4GHz LNB transmitter according to claim 1, characterized in that: It also includes a button module and an indicator module. The main control module is electrically connected to control buttons through the button module, and the main control module is electrically connected to indicator lights through the indicator module.

5. The 2.4GHz LNB transmitter according to claim 4, characterized in that: The indicator module includes a first resistor. The output terminal of the main control chip is connected to a 3.3V DC power supply through an indicator light and the first resistor. The indicator light is a light-emitting diode.

6. The 2.4GHz LNB transmitter according to claim 1, characterized in that: The power module includes a power circuit, which includes a power chip, model SY8368A. The fourth terminal of the power chip is connected to an external power supply. The fourth terminal of the power chip is grounded through a third capacitor. The fourth terminal of the power chip is electrically connected to the fifth, sixth, and twelfth terminals. The first and third terminals of the power chip are both grounded. The seventh terminal of the power chip is electrically connected to the second terminal of the power chip through a second capacitor. The second terminal of the power chip is grounded through a first inductor, a fourth resistor, and a fifth resistor. The fourth resistor is connected in parallel with a series circuit consisting of the fourth capacitor and the third resistor. The ninth terminal of the power chip is grounded through the fifth resistor.

7. The 2.4GHz LNB transmitter according to claim 1, characterized in that: The radio frequency circuit includes a radio frequency chip and an antenna. The radio frequency chip is model XYO-3318. The first end of the radio frequency chip is electrically connected to the receiving end of the antenna. The ground end of the antenna is grounded. The second, ninth, twenty-third and twenty-fourth ends of the radio frequency chip are all grounded. The tenth end of the radio frequency chip is connected to an external 5V DC power supply, and the twenty-second end of the radio frequency chip is connected to an external 3.3V DC power supply.

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