Low-altitude air signal lamp construction method and system

Abstract

The embodiment of the invention discloses a low-altitude air signal lamp construction method and system. The low-altitude air signal lamp construction method comprises the steps that a GNSS module completes position positioning and clock calibration of a base station; the signal processing unit carries out digital watermarking on the signals and then sends the signals out, and simultaneously carries out digital label acquisition on the received signals so as to achieve the anti-counterfeiting purpose; the antenna transmits a signal; the low-altitude aircraft receives the signal and flies according to the signal. The method has the following advantages: 1, the traffic capacity of the six-direction air signal lamps at multiple height layers can be provided, and the cooperative sensing capacity of multiple aircrafts in a low-altitude high-density airspace is enhanced; 2, the supervision capability of an urban air traffic aircraft can be improved, signal lamp signals are encrypted, the safety of the signals is determined, and the low-altitude safe operation guarantee level is further enhanced; and 3, the technical architecture has expansion capability. And 4, in areas with high flight quantity and complex route structures, the surrounding operation situation awareness of the aircraft and the orderly and rapid passing of the aircraft at the intersection can be ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of low-altitude operation management, and in particular to a method and system for constructing a low-altitude aerial signal light. Background Art

[0002] With the advent of the era of urban air traffic, there is an urgent need to strengthen the construction of low-altitude aircraft infrastructure to guide and support the development of the low-altitude economy. Establishing an urban air traffic signal operation system similar to road traffic is a key part of the low-altitude operation infrastructure construction.

[0003] Traditional Technology: Low-altitude operations are currently in their infancy, with relatively low flight volumes and operations in isolated airspace, primarily relying on pilots' visual judgment. There is no relevant operational support technology for such scenarios.

[0004] The above-mentioned traditional technologies have the following shortcomings: the traditional manual processing method is limited in areas with large flight volume and complex route structure, and the human brain's computing power and situational awareness capabilities are limited, which will lead to a sharp increase in operational safety risks. Summary of the Invention

[0005] The purpose of the embodiments of the present invention is to provide a method and system for constructing low-altitude aerial traffic lights, aiming to construct low-altitude aerial traffic lights in imitation of urban highway traffic lights, so as to solve the problems of operational situation awareness around aircraft and orderly and rapid passage at intersections in areas with high flight volume and complex route structure.

[0006] To achieve the above objectives, in a first aspect, an embodiment of the present invention provides a low-altitude aerial signal light system, comprising:

[0007] GNSS module, used to complete base station positioning and clock calibration;

[0008] a core processing unit, communicating with the GNSS module, for obtaining the operational status of low-altitude aircraft in multiple directions and controlling the status of multiple air traffic lights according to air traffic regulations;

[0009] a signal processing unit, communicating with the core processing unit, and configured to encrypt outgoing signals and decrypt received signals;

[0010] A radio frequency transceiver module, communicating with the core processing unit and the signal processing unit;

[0011] The antenna communicates with the radio frequency transceiver module and the low-altitude aircraft, and is used to receive and send UWB signals.

[0012] Among them, the antenna is used to transmit a first UWB signal to a low-altitude aircraft, including the status, altitude layer and position information of the same indicator lights in the six directions of the signal light; the antenna is used to receive a second UWB signal transmitted by the low-altitude aircraft, and to locate the direction of the low-altitude aircraft based on the second UWB signal.

[0013] As a specific implementation of the present application, the signal processing unit is used to:

[0014] The signal transmitted outward is processed with a digital watermark and then sent out;

[0015] The digital watermark is extracted from the received signal.

[0016] As a preferred implementation of the present application, the RF transceiver module includes a RF transceiver, a power amplifier, a low-noise amplifier and a filter. One end of the RF transceiver is connected to the core processing unit and the signal processing unit, and the other end is connected to the power amplifier and the low-noise amplifier; the signal emitted outward by the signal processing unit passes through the RF transceiver, the power amplifier and the filter in sequence.

[0017] Furthermore, the low-altitude aerial signal light system also includes a power supply module, which is electrically connected to the signal processing unit, the core processing unit and the radio frequency transceiver.

[0018] In a second aspect, the present application also provides a method for constructing a low-altitude aerial signal light, which is applicable to the low-altitude aerial signal light system described in the first aspect, comprising:

[0019] The low-altitude air traffic light system uses a built-in GNSS module to complete the base station's location positioning and clock calibration;

[0020] The core processing unit obtains the operation status of low-altitude aircraft and the status of air traffic lights in multiple directions to generate radio frequency signals;

[0021] The signal processing unit processes the radio frequency signal using a digital watermark to obtain a UWB transmission signal;

[0022] The antenna sends the UWB transmission signal to low-altitude aircraft;

[0023] The low-altitude aircraft receives the UWB transmission signal and converts it into an airborne signal light signal, so that the low-altitude aircraft flies according to the airborne signal light signal.

[0024] The implementation of the present invention provides a method and system for constructing a low-altitude aerial signal light, which has the following advantages:

[0025] 1. This method can provide six-directional (front, back, left, right, up, down) air traffic light access capabilities at multiple altitude levels, enhance the collaborative perception capabilities of multiple aircraft in low-altitude, high-density airspace, effectively reduce the collaborative safety control capabilities of pilots, remote pilots, or drones, and accelerate the development of low-altitude operations.

[0026] 2. This method can improve the supervision capability of urban air traffic aircraft, support the encryption of traffic light signals, ensure the security of signals, and thus enhance the level of low-altitude safe operation.

[0027] 3. The technical architecture provided by the embodiment of the present invention has scalability and is capable of expanding the positioning capabilities of urban air traffic aircraft, and can also be expanded to areas such as urban road traffic.

[0028] 4. In areas with high flight volume and complex route structure, it can ensure awareness of the operational situation around aircraft and orderly and rapid passage at intersections. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific implementation or the description of the prior art.

[0030] Figure 1 This is an architectural diagram of a low-altitude aerial signal light system provided by an embodiment of the present invention;

[0031] Figure 2 It is a traffic status diagram for each direction of the intersection. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0034] Ultra Wide Band (UWB) technology is a wireless carrier communication technology that does not use a sinusoidal carrier but instead uses nanosecond-level non-sinusoidal narrow pulses to transmit data.

[0035] Digital signature (DS), also known as digital watermarking, is an information hiding technique. A digital watermarking algorithm embeds a digital watermark into the radio frequency signal through a watermark embedding algorithm, without significantly affecting the original radio frequency information. Conversely, a watermark extraction algorithm extracts the digital watermark from the host message of the air traffic signal. The embedded and extracted watermarks are collectively known as digital watermarks.

[0036] The inventive concept of this invention is to combine the requirements of low-altitude traffic signal control, the problems existing in the current communication system, and new technologies such as ultra-wideband (UWB) and digital signatures to propose a low-altitude aerial signal light construction scheme, as follows:

[0037] Low-altitude aerial signal lights are based on UWB technology to achieve communication and positioning with aircraft, and use UWB's high-speed transmission capabilities to broadcast signal light information. Low-altitude aircraft with standard configurations receive this signal and convert it into an airborne signal light signal to fly according to the signal light instructions.

[0038] Please refer to Figure 1 The low-altitude aerial signal light system provided by an embodiment of the present invention includes a gateway, a GNSS module, a core processing unit, a power module, a signal processing unit, a radio frequency transceiver, a power amplifier, a low-noise amplifier, a filter and an antenna.

[0039] Among them, the power module is electrically connected to the gateway, core processing unit, signal processing unit and radio frequency transceiver to provide power for the above modules.

[0040] Specifically, the GNSS module is used to complete the position positioning and clock calibration of the base station, and the signal of the GNSS module is input into the core processing unit.

[0041] The core processing unit communicates with the GNSS module to obtain the operation status of low-altitude aircraft in multiple directions and control the status of multiple air traffic lights according to air traffic regulations.

[0042] The signal processing unit communicates with the core processing unit and is used to encrypt outgoing signals and decrypt received signals. Specifically, the signal processing unit is primarily used to digitally watermark signals before they are sent, while also digitally labeling received signals to achieve anti-counterfeiting purposes.

[0043] The antenna is used to transmit a first UWB signal to a low-altitude aircraft, including the status, altitude layer and position information of the same-same indicator lights in the six directions of the signal light; the antenna is used to receive a second UWB signal transmitted by the low-altitude aircraft, and to locate the direction of the low-altitude aircraft based on the second UWB signal.

[0044] Furthermore, one end of the RF transceiver is connected to the core processing unit and the signal processing unit, and the other end is connected to the power amplifier and the low noise amplifier; the signal transmitted outward by the signal processing unit passes through the RF transceiver, the power amplifier and the filter in sequence.

[0045] Based on the same inventive concept, an embodiment of the present invention provides a method for constructing a low-altitude aerial signal light, comprising:

[0046] S1, the low-altitude aerial signal light system uses the built-in GNSS module to complete the position positioning and clock calibration of the base station.

[0047] S2, the core processing unit obtains the operation status of low-altitude aircraft in multiple directions and the status of air traffic lights to generate radio frequency signals.

[0048] S3, the signal processing unit processes the radio frequency signal using the digital watermark to obtain a UWB transmission signal.

[0049] It should be noted that the signal processing unit is mainly used to perform digital watermark processing on the signal to be transmitted outward and to extract the digital watermark from the received signal to achieve the purpose of anti-counterfeiting.

[0050] S4, the antenna sends the UWB transmission signal to the low-altitude aircraft.

[0051] It should be noted that the UWB transmission signal includes the status of the six-directional indicator lights, altitude layer, and position information. At the same time, the antenna is also used to receive UWB signals transmitted by aircraft for directional positioning of the aircraft.

[0052] S5, the low-altitude aircraft receives the UWB transmission signal and converts it into an airborne signal light signal, so that the low-altitude aircraft flies according to the airborne signal light signal.

[0053] In specific implementation, low-altitude aircraft are equipped with a UWB air traffic light status information processing client. After receiving the signal, the client presents the traffic status of each direction of the intersection. The presentation effect is as follows Figure 2 shown.

[0054] From the above description, it can be seen that the implementation of the embodiment of the present invention provides a method and system for constructing a low-altitude aerial signal light, which has the following advantages:

[0055] 1. This method can provide six-directional (front, back, left, right, up, down) air traffic light access capabilities at multiple altitude levels, enhance the collaborative perception capabilities of multiple aircraft in low-altitude, high-density airspace, effectively reduce the collaborative safety control capabilities of pilots, remote pilots, or drones, and accelerate the development of low-altitude operations.

[0056] 2. This method can improve the supervision capability of urban air traffic aircraft, support the encryption of traffic light signals, ensure the security of signals, and thus enhance the level of low-altitude safe operation.

[0057] 3. The technical architecture provided by the embodiment of the present invention has scalability and is capable of expanding the positioning capabilities of urban air traffic aircraft, and can also be expanded to areas such as urban road traffic.

[0058] 4. In areas with high flight volume and complex route structure, it can ensure awareness of the operational situation around aircraft and orderly and rapid passage at intersections.

[0059] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A low-altitude aerial signal light system, characterized in that: include: GNSS module, used to complete the location positioning and clock calibration of the base station; A core processing unit, communicating with the GNSS module, for obtaining the operation status of low-altitude aircraft in multiple directions and controlling the status of multiple air traffic lights according to air traffic rules; A signal processing unit, communicating with the core processing unit, for encrypting outgoing signals and decrypting received signals; A radio frequency transceiver module, communicating with the core processing unit and the signal processing unit; The antenna communicates with the radio frequency transceiver module and the low-altitude aircraft, and is used for receiving and sending UWB signals.

2. The low altitude air signal light system according to claim 1, characterized in that: The antenna is used to transmit a first UWB signal to a low-altitude aircraft, including the status, altitude layer and position information of the same indicator lights in six directions of the signal light; the antenna is used to receive a second UWB signal transmitted by the low-altitude aircraft, and to locate the direction of the low-altitude aircraft according to the second UWB signal.

3. The low altitude air signal light system according to claim 1, characterized in that: The signal processing unit is used for: The signal transmitted outward is processed with digital watermark and then sent out; The digital watermark is extracted from the received signal.

4. The low-altitude aerial signal light system according to any one of claims 1 to 3, characterized in that: The RF transceiver module includes a RF transceiver, a power amplifier, a low noise amplifier and a filter. One end of the RF transceiver is connected to the core processing unit and the signal processing unit, and the other end is connected to the power amplifier and the low noise amplifier. The signal emitted by the signal processing unit passes through the RF transceiver, the power amplifier and the filter in sequence.

5. The low altitude air signal light system according to claim 4, characterized in that: The low-altitude aerial signal light system also includes a power supply module, which is electrically connected to the signal processing unit, the core processing unit and the radio frequency transceiver.

6. A method for constructing a low-altitude aerial signal light, characterized in that: The method is applicable to the low-altitude aerial signal light system described in claim 5, comprising: The low-altitude air signal light system uses the built-in GNSS module to complete the location positioning and clock calibration of the base station; The core processing unit acquires the operation status of low-altitude aircraft and the status of signal lights in the air in multiple directions to generate radio frequency signals; The signal processing unit processes the radio frequency signal using a digital watermark to obtain a UWB transmission signal; The antenna sends the UWB transmission signal to low-altitude aircraft; The low-altitude aircraft receives the UWB transmission signal and converts it into an airborne signal light signal, so that the low-altitude aircraft flies according to the airborne signal light signal.

7. The method for constructing a low-altitude aerial signal light according to claim 6, characterized in that: The UWB transmission signal includes the status, altitude layer and position information of the indicator lights in the six directions of the signal lights.

8. The method for constructing a low-altitude aerial signal light according to claim 6, characterized in that: The low-altitude aircraft carries a client, which is used to receive UWB transmission signals, convert them into airborne signal light signals, and display the traffic status of each direction of the intersection.

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