Signal detecting and recording device for unmanned aerial vehicle

Abstract

The utility model provides a signal detection recording device for an unmanned aerial vehicle. The signal detection recording device comprises a voltage acquisition circuit, a pulse acquisition circuit, a temperature acquisition circuit, a reference circuit, a lithium battery charging circuit, a voltage stabilizing circuit, an electric quantity detection circuit, a storage module and a master control MCU, the voltage acquisition circuit, the pulse acquisition circuit, the temperature acquisition circuit, the reference circuit and the storage module are electrically connected with the main control MCU; the lithium battery charging circuit is connected with the lithium battery, and the lithium battery is connected with the temperature acquisition circuit, the reference circuit, the storage module and the master control MCU through the voltage stabilizing circuit and supplies power to the temperature acquisition circuit, the reference circuit, the storage module and the master control MCU. According to the utility model, the real-time monitoring and recording of key data such as voltage, pulse signals and temperature in the flight process of the unmanned aerial vehicle are realized through the cooperative work of the modules, and the space and load requirements during the flight of the unmanned aerial vehicle can be met due to small volume and light weight.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicles (UAVs), and in particular relates to a signal detection and recording device for UAVs. Background Art

[0002] With the development of drone technology, drones are widely used in logistics and transportation, agricultural monitoring, search and rescue, and other fields. To ensure stable operation during drone missions, data link signal quality is crucial. However, due to the size, weight, and power supply limitations of drones, it is difficult to mount large, specialized measurement equipment during flight. Therefore, existing drone signal detection methods are mostly limited to ground stations or rely on large external equipment for static detection on the ground, and cannot effectively monitor and record signal characteristics in real time during flight.

[0003] Therefore, it has become an urgent need in the industry to design a detection and recording device that is small in size, light in weight, fully functional and can be powered independently to solve the technical needs of real-time detection of data link signal characteristics during drone flight. Utility Model Content

[0004] In view of this, the present invention aims to overcome the shortcomings of the above-mentioned problems in the prior art and proposes a signal detection and recording device for drones, which is used to detect and record the signal characteristics of the data link during the flight of the drone.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] A device for detecting and recording signals from a drone, comprising a housing, wherein a voltage acquisition circuit, a pulse acquisition circuit, a temperature acquisition circuit, a reference circuit, a lithium battery charging circuit, a voltage stabilizing circuit, a power detection circuit, a storage module, and a main control MCU are arranged in the housing;

[0007] The voltage acquisition circuit, pulse acquisition circuit, temperature acquisition circuit, reference circuit, and storage module are all electrically connected to the main control MCU;

[0008] The lithium battery charging circuit is connected to the lithium battery, and the lithium battery is connected to the temperature acquisition circuit, the reference circuit, the storage module and the main control MCU through the voltage stabilizing circuit to power the temperature acquisition circuit, the reference circuit, the storage module and the main control MCU;

[0009] The lithium battery is also connected to a power detection circuit, which is connected to the main control MCU;

[0010] The voltage acquisition circuit is used to collect voltage data of the data link during the flight of the UAV and send it to the main control MCU;

[0011] The pulse acquisition circuit is used to measure the pulse signal characteristics in the drone data link and send them to the main control MCU;

[0012] The temperature acquisition circuit is used to detect the temperature changes of the components of the drone in real time during flight and send them to the main control MCU;

[0013] The reference circuit is used to provide a stable voltage reference signal.

[0014] Furthermore, an analog-to-digital converter is provided inside the main control MCU, and the voltage data collected by the voltage collection circuit is converted into a digital signal by the analog-to-digital converter and stored in the storage module in real time.

[0015] Furthermore, a timer is provided inside the main control MCU, and the pulse signal of the data link is collected in real time by the timer.

[0016] Furthermore, it also includes a debugging download circuit, which is connected to the main control MCU.

[0017] Compared with the prior art, the drone signal detection and recording device described in the present invention has the following advantages:

[0018] This new device adopts a miniaturized and lightweight design. It can be mounted on a drone platform at any time without affecting the drone's flight performance, realizing the detection and recording of real-time signal characteristics during flight. Compared with traditional large-scale measurement equipment, it overcomes the limitations of volume and weight on drone flight and is suitable for more application scenarios.

[0019] This new device integrates multiple detection functions such as voltage, pulse signal, and temperature, and completes the collection of multiple data in a single device. Compared with traditional single data collection devices, it can obtain flight data more comprehensively and improve the accuracy of analysis results.

[0020] The utility model is powered by a lithium battery and is equipped with a voltage stabilizing circuit. The utility model does not need to rely on the main power supply system of the drone, and can work stably under various working conditions of the drone, thereby enhancing the independence and stability of the system.

[0021] The utility model introduces a reference circuit, so that the measurement results of the device remain accurate and reliable under different environmental conditions. This innovative design effectively avoids the data collection error problem caused by voltage fluctuations in traditional equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the principle of a device for detecting and recording drone signals in accordance with the present invention;

[0024] Figure 2 This is a circuit diagram of the voltage acquisition circuit of the present utility model;

[0025] Figure 3 This is a circuit diagram of the pulse acquisition circuit of the present utility model;

[0026] Figure 4 This is a circuit diagram of the temperature acquisition circuit of the present utility model;

[0027] Figure 5 A circuit diagram of a reference circuit of the present utility model;

[0028] Figure 6 This is a circuit diagram of the lithium battery charging circuit of the present utility model;

[0029] Figure 7 A circuit diagram of the storage module of the present utility model;

[0030] Figure 8 This is a circuit diagram of the main control MCU of the present utility model;

[0031] Figure 9 This is a circuit diagram of the power detection circuit of the utility model;

[0032] Figure 10 A circuit diagram of the debugging download circuit of the utility model;

[0033] Figure 11 This is a circuit diagram of the voltage stabilizing circuit of the present utility model. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0036] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0038] like Figure 1 As shown, the utility model provides a device for detecting and recording signals of unmanned aerial vehicles, comprising a housing, in which a voltage acquisition circuit, a pulse acquisition circuit, a temperature acquisition circuit, a reference circuit, a lithium battery charging circuit, a voltage stabilizing circuit, a power detection circuit, a storage module, and a main control MCU are arranged;

[0039] The voltage acquisition circuit, pulse acquisition circuit, temperature acquisition circuit, reference circuit, and storage module are all electrically connected to the main control MCU;

[0040] The lithium battery charging circuit is connected to the lithium battery, and the lithium battery is connected to the temperature acquisition circuit, the reference circuit, the storage module and the main control MCU through the voltage stabilizing circuit to power the temperature acquisition circuit, the reference circuit, the storage module and the main control MCU;

[0041] The lithium battery is also connected to a power detection circuit, and the power detection circuit is connected to a main control MCU.

[0042] like Figure 2As shown, the voltage acquisition circuit is used to collect voltage data of key data links during the flight of the drone, such as the voltage fluctuation of the drone power supply, load power supply, and power supply of modules such as the drone radio and sensors, and send it to the main control MCU; the circuit divides the voltage of the drone's key power supply nodes (such as the voltage fluctuation of the drone power supply, load power supply, and power supply of modules such as the drone radio and sensors) and performs RC filtering, and sends it to the MCU's internal high-precision analog-to-digital converter (ADC) for sampling. The collected voltage data is converted into a digital signal by the ADC and stored in the storage module in real time; the circuit can monitor the real-time status of the power system, especially the voltage fluctuation when the drone performs high-power tasks (such as aircraft acceleration and load transportation).

[0043] like Figure 3 As shown, the pulse acquisition circuit measures the characteristics of pulse signals in the drone's data link and transmits them to the main control MCU. After voltage division and RC filtering, the pulse signal is fed into the MCU's internal high-speed timer (Timer). The Timer collects the data link's pulse signals in real time and calculates important parameters such as the pulse period and signal frequency. These parameters, such as the period and frequency, are then stored in a memory module. By detecting pulse signals, the system can assess the signal quality and data transmission status of the drone's internal GPS pulse-per-second output, payload triggering, and feedback, and thus link quality.

[0044] like Figure 4 As shown in the figure, the temperature acquisition circuit is used to detect temperature changes in key drone components (such as the surface temperature of the autopilot, the heating temperature of the electronic speed controller, and the internal temperature of the payload) in real time during flight and transmit them to the main control MCU. The temperature acquisition circuit uses an NTC thermistor as a temperature-sensitive element. The real-time resistance value of the NTC is detected by voltage division and sent to the MCU's internal ADC for sampling. The ADC converts the voltage data into digital data and calculates the temperature value. This circuit can detect temperature changes inside the drone in real time, especially the temperature of electronic components, power batteries, and data link circuits. The temperature data is also stored in a storage module for easy post-flight analysis.

[0045] like Figure 5 As shown, the reference circuit provides a stable reference voltage to ensure the measurement accuracy of all acquisition circuits. To prevent changes in the flight environment or power supply fluctuations from affecting data acquisition accuracy, the reference circuit can dynamically adjust the output voltage to ensure system reliability.

[0046] like Figure 6The figure shows the lithium battery charging circuit. This device uses a small lithium battery as its power source to reduce overall weight. A USB Type-C port is provided, allowing 5V input to the lithium battery charging circuit. Once the USB port is powered, the circuit automatically controls the charging voltage and current to achieve constant voltage and constant current charging. An indicator light indicates charging status or full charge. When the device is low on power, it can be recharged directly from a computer's USB port, eliminating the need for dedicated charging equipment.

[0047] like Figure 7 As shown, the storage module uses a large-capacity memory chip to store all collected data. This storage module efficiently stores information such as voltage, pulse signals, and temperature. After the drone completes its flight mission, users can download the data to the ground station through the data interface for analysis.

[0048] like Figure 8 As shown, the main control MCU is connected to the voltage acquisition circuit, pulse acquisition circuit, temperature acquisition circuit, and storage module. The collected voltage, pulse signal, and temperature are digitally processed and stored in the storage module. The acquisition cycle can be set through the debug serial port, and the main control MCU collects and stores data according to the set cycle. The internal ADC collects the reference voltage and corrects the raw voltage and temperature signals to ensure stable and accurate signals.

[0049] like Figure 9 As shown, the power detection circuit is used to detect the power of the lithium battery and provide the main control MCU with the remaining power of the lithium battery.

[0050] like Figure 10 As shown, the debugging download circuit is used to burn the program to the main control MCU and debug the program during the development process.

[0051] like Figure 11 As shown, the voltage stabilizing circuit is used to stabilize the lithium battery voltage to 3.3V to ensure that the main control MCU, temperature acquisition circuit, reference circuit, and storage module can work stably.

[0052] Through the coordinated work of the above modules, the utility model realizes real-time monitoring and recording of key data such as voltage, pulse signal, and temperature during the flight of the UAV. Moreover, due to its small size and light weight, it can adapt to the space and load requirements of the UAV during flight.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for detecting and recording drone signals, comprising a housing, characterized in that: The housing is provided with a voltage acquisition circuit, a pulse acquisition circuit, a temperature acquisition circuit, a reference circuit, a lithium battery charging circuit, a voltage stabilizing circuit, a power detection circuit, a storage module and a main control MCU; The voltage acquisition circuit, pulse acquisition circuit, temperature acquisition circuit, reference circuit, and storage module are all electrically connected to the main control MCU; The lithium battery charging circuit is connected to the lithium battery, and the lithium battery is connected to the temperature acquisition circuit, the reference circuit, the storage module and the main control MCU through the voltage stabilizing circuit to power the temperature acquisition circuit, the reference circuit, the storage module and the main control MCU; The lithium battery is also connected to a power detection circuit, which is connected to the main control MCU; The voltage acquisition circuit is used to collect voltage data of the data link during the flight of the UAV and send it to the main control MCU; The pulse acquisition circuit is used to measure the pulse signal characteristics in the drone data link and send them to the main control MCU; The temperature acquisition circuit is used to detect the temperature changes of the components of the drone in real time during flight and send them to the main control MCU; The reference circuit is used to provide a stable voltage reference signal.

2. The device for detecting and recording drone signals according to claim 1, characterized in that: The main control MCU is internally provided with an analog-to-digital converter, and the voltage data collected by the voltage collection circuit is converted into a digital signal by the analog-to-digital converter and stored in the storage module in real time.

3. The device for detecting and recording drone signals according to claim 1, characterized in that: The main control MCU is internally provided with a timer, which collects the pulse signal of the data link in real time.

4. The device for detecting and recording drone signals according to claim 1, characterized in that: It also includes a debugging and downloading circuit, which is connected to the main control MCU.

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