A spectrum monitoring and UAV triangulation positioning method based on tethered balloons

Abstract

This invention provides a spectrum monitoring and triangulation positioning method for drones based on tethered balloons, which relates to the field of water-related aviation technology. The method involves deploying tethered balloons at multiple points in the sky, with a ground-based control center. Each balloon is equipped with a spectrum monitoring system and triangulation positioning equipment, and all are communicatively connected to the control center. The spectrum monitoring system dynamically monitors multiple frequency bands according to control instructions, collects, manages, and analyzes spectrum information and geographic location information, and transmits it to the control center. Upon detecting an abnormal band, the control center activates the triangulation positioning equipment to calculate and determine the drone's position. This method combines tethered balloons with triangulation positioning technology to achieve precise spectrum monitoring and accurate drone positioning, effectively improving monitoring efficiency and enhancing positioning accuracy.

Description

Technical Field

[0001] The present invention relates to the field of aviation technology, and in particular to a spectrum monitoring and unmanned aerial vehicle (UAV) triangulation positioning method based on a tethered balloon. Background Art

[0002] Spectrum monitoring technology is a key component of radio communications, primarily used for wireless spectrum resource management, radio station management, and electromagnetic environment management. A spectrum monitoring system typically consists of an antenna, radio frequency module, signal processing module, and data storage and analysis module. It captures, processes, and analyzes signals across different frequency bands, providing information such as spectrum occupancy, signal strength, and signal type. This information is crucial for the planning and optimization of radio communication systems and the rational allocation of spectrum resources.

[0003] Triangulation positioning technology is a positioning method based on geometric principles. It uses two or more detectors to detect the target orientation at different positions, and then uses triangulation geometry principles to determine the target's position and distance.

[0004] Tethered balloons can be used as point-suspended equipment, with only a small number of high-frequency heads, direct control devices and equipment for sensing antenna direction on the platform. Most of the processing equipment can be placed on the ground, forming an air-ground combined detection device, which is suitable for observing long-range targets at low or ultra-low altitudes. It can also form an integrated system of active and passive detection combined with radar, optoelectronics, radio detection and some military communication functions, making full use of its commanding position to form an integrated and complementary detection system.

[0005] Currently, a single solution is not accurate in detecting the location and altitude of drones. Summary of the Invention

[0006] The purpose of the present invention is to provide a spectrum monitoring and UAV triangulation positioning method based on tethered balloons to solve the technical problem of inaccurate positioning in the prior art.

[0007] In order to solve the above problems, the present invention relates to a spectrum monitoring and drone triangulation positioning method based on a tethered balloon, which adopts the following technical solutions:

[0008] The present invention provides a spectrum monitoring and UAV triangulation positioning method based on a tethered balloon, comprising:

[0009] a. At least three tethered balloons are deployed in the sky at intervals, with a ground-based control center. A spectrum monitoring system and a triangulation device based on time-difference positioning technology are deployed on any of the tethered balloons. Both the spectrum monitoring system and the triangulation device are connected to the control center.

[0010] b. The spectrum monitoring system receives control commands from the control center. Based on these commands, the spectrum monitoring system dynamically monitors spectrum usage in different frequency bands, collects spectrum information, manages and analyzes it, and transmits spectrum information and geographic location information to the control center.

[0011] c. After the control center obtains the abnormal band through the spectrum monitoring system, it activates the triangulation positioning device. Based on the time difference positioning technology, at least three triangulation positioning devices receive the signal sent by the positioning source, calculate the time difference between the signal reaching each triangulation positioning device, and thus determine the location of the drone.

[0012] Preferably, it also includes a triangulation positioning device arranged on the ground. By combining the triangulation positioning device deployed on the ground and the triangulation positioning device deployed on the tethered balloon with the angle positioning technology, the signal arrival angle is measured to assist in locating the height of the UAV.

[0013] Preferably, the triangulation device is configured as a triangulation instrument.

[0014] Preferably, the spectrum monitoring system includes a broadband antenna, a radio frequency module, a communication module, a GPS positioning module, and a cognitive radio platform. The broadband antenna is electrically connected to the radio frequency module. The broadband antenna is used to capture a wide range of wireless spectrum signals. The radio frequency module receives and processes the signals collected by the broadband antenna. The radio frequency module is electrically connected to the communication module. The communication module is electrically connected to the cognitive radio platform to obtain spectrum data and control instructions. The communication module is communicatively connected to the control center to be responsible for real-time and reliable data transmission. The GPS positioning module is electrically connected to the cognitive radio platform. The GPS positioning module receives GPS satellite signals to locate the geographical location of the monitoring terminal.

[0015] The beneficial effects of the present invention are as follows:

[0016] This invention provides a spectrum monitoring and drone triangulation positioning method based on tethered balloons, which relates to the field of water-related aviation technology. The method involves deploying tethered balloons at multiple points in the sky, with a ground-based control center. Each balloon is equipped with a spectrum monitoring system and triangulation equipment, and all are communicatively connected to the control center. The spectrum monitoring system dynamically monitors multiple frequency bands according to control instructions, collects, manages, and analyzes spectrum information and geographic location information, and transmits it to the control center. Upon detecting an abnormal band, the control center activates the triangulation equipment to calculate and determine the drone's position. This method combines tethered balloons with triangulation technology to achieve precise spectrum monitoring and accurate drone positioning, effectively improving monitoring efficiency and enhancing positioning accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments:

[0018] Figure 1Constructing diagrams for spectrum monitoring systems on tethered balloons;

[0019] Figure 2 This is a diagram of the structural coordination of the monitoring terminal on the tethered balloon. DETAILED DESCRIPTION

[0020] In order to make the technical purpose, technical solution and beneficial effects of the present invention more clear, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] The present invention provides a spectrum monitoring and drone triangulation positioning method based on tethered balloons, which constructs an all-round monitoring layout based on tethered balloons deployed at multiple points in the sky. Specifically, the method includes:

[0022] Multiple tethered balloons are set up (defined as at least three), deployed in the sky at intervals, with a control center located on the ground. A spectrum monitoring system and triangulation positioning equipment based on time difference orientation (TDOA) technology are deployed on any tethered balloon. The spectrum monitoring system and triangulation positioning equipment are both connected to the control center via wireless or wired communication. The control center serves as the core control hub. Based on the analysis results of spectrum monitoring data, it determines the timing and parameter settings for the positioning mission and accurately issues mission instructions to the triangulation positioning equipment, which responds and activates the positioning function in real time. For example, if suspicious frequency band activity is detected, the control center transmits positioning instructions to the triangulation positioning equipment, driving it to lock onto the target. The triangulation positioning equipment processes the received signal data in real time, accurately locating the drone's position and altitude information, and then transmits the data to the control center.

[0023] Specifically: The spectrum monitoring system receives control instructions from the control center, dynamically monitors the spectrum usage of different frequency bands according to the instructions, collects spectrum information, manages and analyzes it, and transmits spectrum information and geographic location information to the control center. The spectrum monitoring system includes a broadband antenna, a radio frequency module, a communication module, a GPS positioning module, and a cognitive radio platform. The broadband antenna is used to capture a wide range of wireless spectrum signals. The broadband antenna is electrically connected to the radio frequency module. The radio frequency module receives and processes the signals collected by the broadband antenna. The radio frequency module is electrically connected to the communication module. The radio frequency module converts analog signals into digital signals and transmits them to the communication module via a link. The communication module is electrically connected to the cognitive radio platform to obtain spectrum data and control instructions. The communication module is connected to the control center to be responsible for real-time and reliable data transmission. The GPS positioning module is electrically connected to the cognitive radio platform. The GPS positioning module receives GPS satellite signals to locate the geographic location of the monitoring terminal (collects its own geographic location information).

[0024] The triangulation device is set as a triangulator.

[0025] After the control center obtains the abnormal band through the spectrum monitoring system, it activates the triangulation positioning equipment. Based on the time difference positioning technology, at least three triangulation positioning devices deployed in the air receive the signal sent by the positioning source, and accurately calculates the time difference between the signal reaching each locator based on the TDOA technology, thereby determining the position of the drone.

[0026] At the same time, it also includes triangulation positioning equipment installed on the ground. The triangulation positioning equipment deployed in the air is networked with the triangulation positioning equipment on the ground. The triangulation positioning equipment deployed on the ground and the triangulation positioning equipment deployed on the tethered balloon are combined with angle positioning technology to measure the signal arrival angle to assist in locating the height of the drone.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate and not to limit the technical solutions of the present invention. Any equivalent substitutions of the present invention and any modifications or partial substitutions that do not depart from the spirit and scope of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A spectrum monitoring and UAV triangulation positioning method based on tethered balloons, characterized in that: The method includes: a. At least three tethered balloons are deployed in the sky at intervals, with a ground-based control center. A spectrum monitoring system and a triangulation device based on time-difference positioning technology are deployed on any of the tethered balloons. Both the spectrum monitoring system and the triangulation device are connected to the control center. b. The spectrum monitoring system receives control commands from the control center. Based on these commands, the spectrum monitoring system dynamically monitors spectrum usage in different frequency bands, collects spectrum information, manages and analyzes it, and transmits spectrum information and geographic location information to the control center. c. After the control center obtains the abnormal band through the spectrum monitoring system, it activates the triangulation positioning device. Based on the time difference positioning technology, at least three triangulation positioning devices receive the signal sent by the positioning source, calculate the time difference between the signal reaching each triangulation positioning device, and thus determine the location of the drone.

2. The spectrum monitoring and UAV triangulation positioning method based on a tethered balloon according to claim 1, characterized in that: It also includes a triangulation positioning device installed on the ground. By combining the triangulation positioning device deployed on the ground and the triangulation positioning device deployed on the tethered balloon with angle positioning technology, the signal arrival angle is measured to assist in locating the height of the drone.

3. The spectrum monitoring and UAV triangulation positioning method based on tethered balloons according to claim 2, characterized in that: The triangulation device is set as a triangulator.

4. The spectrum monitoring and drone triangulation positioning method based on a tethered balloon according to claim 1, wherein the spectrum monitoring system includes a broadband antenna, a radio frequency module, a communication module, a GPS positioning module, and a cognitive radio platform. The broadband antenna is electrically connected to the radio frequency module, and the broadband antenna is used to capture a wide range of wireless spectrum signals. The radio frequency module receives and processes signals collected by the broadband antenna. The radio frequency module is electrically connected to the communication module, and the communication module is electrically connected to the cognitive radio platform to obtain spectrum data and control instructions. The communication module is communicatively connected to a control center to ensure real-time and reliable data transmission. The GPS positioning module is electrically connected to the cognitive radio platform, and the GPS positioning module receives GPS satellite signals to locate the geographic location of the monitoring terminal.

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