A Cooperative Control Device and Control Method for a Distributed Communication Navigation Jamming Signal Source

Abstract

The present application discloses a collaborative control device for a distributed communication navigation interference signal source, which includes a central control node and a number of edge nodes, and specifically includes a human-computer interaction module, a transceiver control module, a signal generation module, a signal reception module, a radio frequency channel, a power amplifier, a power supply, a time-frequency unit, and a transceiver antenna. The time-division system distributed communication navigation interference signal source collaborative control method and device of the present invention support the realization of remote collaborative control of interference sources arranged at multiple points by coordinating the signal link systems of distributed interference sources and their own remote control communications, eliminating the need for an independent remote control communication module, avoiding self-interference, reducing power consumption, and significantly increasing the remote control distance.

Description

Technical Field

[0001] The present invention belongs to the field of communication and navigation interference signal generation, and particularly relates to a collaborative control device and method for a distributed communication and navigation interference signal source in a time-division system. Background Art

[0002] With the rapid development of intelligent and unmanned technologies, there are more and more drones flying illegally in urban areas, which affects the public social life and the safety of urban operations. To maintain and guarantee social public safety and the safety of major events, using communication and navigation interference signal sources deployed at multiple points to cut off the measurement and control and navigation links of drones and form no-fly and rejection areas has become a commonly used and effective frequency control means in modern society. Currently, to solve the problem of long-distance collaborative control of interference signal sources deployed at multiple points, generally, a dedicated remote control communication module is added on the basis of the interference signal source. For example, communication links such as 4G, 5G, LoRa, and UHF radio stations are used to achieve remote control of the interference signal source. The simple integration of the above-mentioned distributed communication and navigation interference signal source and the remote control communication module has three deficiencies:

[0003] First, there is the problem of device self-interference. If the frequency used by the remote control communication link is adjacent to the frequency band of the drone communication and navigation interference source, there will be device self-interference. Therefore, the frequency of the remote control communication link needs to be far from the working frequency band of the interference source. In this way, the antennas, radio frequency devices, etc. of the two sets of device components need to be relatively isolated, which increases the device scale and also limits the working frequency band range.

[0004] Second, there is the problem of overall power consumption. The interference signal source itself requires a large power consumption, and adding an independent remote control communication module further consumes power, which compresses the battery life of the distributed interference sources installed outdoors.

[0005] Third, there is the problem of remote control distance. Limited by the transmission power of the remote control communication module, the remote control operation distance of the distributed interference source cannot be too large. Summary of the Invention

[0006] The technical problem to be solved by this patent is: By overall planning the signal link design of the distributed interference source and its own remote control communication, it supports the realization of remote collaborative control of interference sources deployed at multiple points, avoids device self-interference, and reduces the overall power consumption and hardware scale.

[0007] The technical solution of the present invention provides a collaborative control device for a distributed communication and navigation interference signal source, including a central control node and several edge nodes, specifically including a human-computer interaction module, a transceiver control module, a signal generation module, a signal reception module, a radio frequency channel, a power amplifier, a power supply, a time-frequency unit, and a transceiver antenna, characterized in that:

[0008] The human-computer interaction module is used for the initial default parameter setting of the signal source. The parameters including the signal frequency, working bandwidth, pseudo-code sequence, modulation mode, information rate, encoding and decoding mode, transceiver time slot table, and transmission routing table of the distributed interference signal source are configured or modified through the display and control software, and the parameter information is sent to the transceiver control module;

[0009] The transceiver control module is used to receive external command parameters of the human-computer interaction module or the signal receiving module, control the time slot of the device to transmit and receive signals, configure the signal frequency, working bandwidth, pseudo code sequence, modulation mode, information rate, and working state of the encoding and decoding mode of the device, and forward relevant telemetry and remote control data information according to the transmission routing table;

[0010] The signal generation module receives the transmission information content of the transceiver control module, modulates the information content according to the signal frequency, working bandwidth, pseudo code sequence, modulation mode, information rate, and encoding and decoding mode parameter pattern in the transmission time slot, generates interference and measurement and control integrated signal and transmits it;

[0011] The signal receiving module receives the receiving mode parameters of the transceiver control module and is responsible for capturing, tracking, and demodulating the remote control signal transmitted by the control node or the telemetry broadcast signal transmitted by other edge nodes in the receiving time slot;

[0012] Furthermore, it also includes a radio frequency channel, which is responsible for the ADC analog-to-digital conversion, signal low-noise amplification, bandpass filtering, down-conversion processing, etc. before the signal receiving module, and converts it into a digital intermediate frequency signal and outputs it to the signal receiving module.

[0013] The power amplifier is responsible for synthesizing and amplifying the output signal of the signal generation module.

[0014] Power supply, responsible for powering the entire machine.

[0015] The time-frequency unit is responsible for providing the time-frequency reference signals required by other modules.

[0016] The transceiver antenna is responsible for transmitting and receiving radio frequency signals in time-sharing mode.

[0017] This embodiment also provides a signal link implementation method for time-division distributed interference and measurement and control integration for a distributed communication and navigation interference signal source cooperative control device, which is characterized by specifically comprising:

[0018] Step 1: The distributed signal source device adopts an "interference and measurement and control integrated signal frame". Among them: the signal frame is divided into three working time slots: a control time slot, a polling interference and telemetry broadcast time slot, and a concurrent interference time slot. The control time slot is used for the central control node of the distributed interference signal source to externally transmit signals containing configuration instruction information. The polling interference and telemetry broadcast time slot is used for each distributed node to alternately transmit interference signals carrying its own telemetry working conditions and information forwarded by other nodes. The concurrent interference time slot is used for all distributed nodes to simultaneously transmit interference signals without carrying valid information.

[0019] Step 2: When the control time slot works, the central control node radiates signals externally. The interference signal and the measurement and control signal adopt the same signal frequency and system style. The control signal generated by the central control node is modulated with remote control instruction information for the edge distribution nodes. The remote control instruction information includes configuration parameters for the "interference and measurement and control integrated" signal frame and time slots, the transmission routing table, as well as parameters such as the transmission power, signal frequency point, working bandwidth, pseudo-code sequence, modulation method, information rate, and coding and decoding method of each edge node.

[0020] Step 3: When the polling interference and telemetry broadcast time slot works, the signal source devices of each edge distribution node alternately transmit interference signals externally or receive measurement and control signals from other nodes, and different working time slots are used for transmission and reception.

[0021] Step 4: When the concurrent interference time slot works, each interference node simultaneously transmits interference signals externally and does not receive external signals.

[0022] Step 5: The central control node reconfigures parameters. After the central control node of the distributed interference signal source device fails, only by setting any edge node to transmit signals externally in the control time slot, it will automatically become the new central control node.

[0023] Furthermore, in Step 1, the duration of each signal frame is fixed at T and runs cyclically. Each signal frame contains 1 control time slot, N polling interference and telemetry broadcast time slots, and several concurrent interference time slots, where N is the number of edge nodes.

[0024] Furthermore, in Step 1, the duration of each control time slot, polling interference and telemetry broadcast time slot, and concurrent interference time slot is t, including a protection gap, a pilot frequency band, and a data segment.

[0025] During the protection gap, no node transmits signals, which is used to eliminate the equipment mutual interference problem caused by time asynchrony.

[0026] The pilot frequency band is a pilot frequency band signal modulated with fixed characters, which is used for the receiving end to capture, track, and bit synchronization.

[0027] Furthermore, the configurable parameters of the integrated interference and measurement & control signal frame include: the default signal frame duration is 1 s, the default duration of a single working time slot is 31.25 ms, the default protection gap in each time slot is 0.25 ms, the default frame header duration is 1 ms, the default data segment duration is 30 ms, and the default information rate is 8 kbps.

[0028] Furthermore, in step 3, in this time slot, a single edge distribution node alternately radiates interference signals externally. The signals are modulated to carry the telemetry information of the local state. The telemetry information includes the working time, device number, battery margin, transmission power, signal pattern parameters of this node, and the reception intensity and ranging information of the signals sent by other nodes. At the same time, the relay information of other nodes in the previous receiving time slot is forwarded according to the routing table. Other edge distribution nodes and the central control node receive the telemetry information of other devices in this time slot and do not radiate signals externally.

[0029] The beneficial effects of the present invention are as follows:

[0030] (1) For the time-division system distributed communication navigation interference signal source cooperative control method and device of the present invention, by overall planning the signal link system of the distributed interference source and its own remote control communication, it supports the realization of remote cooperative control of multiple distributed interference sources, eliminates the independent remote control communication module, avoids self-interference, reduces power consumption, and greatly improves the remote control distance.

[0031] (2) In the present invention, the distributed communication navigation interference source signal uses three time slots of the time-division system: the control time slot, the polling interference and telemetry broadcast time slot, and the concurrent interference time slot. The telemetry and remote control data transmission of the distributed node and the interference signal emission work in different time slots. Therefore, self-interference of the distributed interference source is avoided.

[0032] (3) In the present invention, the distributed communication navigation interference source cancels the independent remote control communication module and modulates the telemetry and remote control communication information to be transmitted on the interference working frequency band. Therefore, the hardware overhead and device power consumption are reduced.

[0033] (4) In the present invention, the distributed node can relay the telemetry and remote control information content of other nodes. Therefore, the remote control distance of the navigation interference signal source is improved, and the efficient remote cooperative control of the distributed communication navigation interference signal source is comprehensively optimized and realized. Description of the Drawings

[0034] Figure 1 Schematic diagram of an integrated interference and measurement & control signal frame of a distributed signal source;

[0035] Figure 2 Schematic diagram of the main physical composition of a distributed interference signal source device. Detailed Embodiment

[0036] The following is combined with the attachedFigure 1-2 The technical solution of the present invention is described in detail

[0037] like Figure 1 As shown, this embodiment provides a distributed communication navigation interference signal source collaborative control device, including a central control node and a plurality of edge nodes, specifically including a human-computer interaction module, a transceiver control module, a signal generation module, a signal receiving module, a radio frequency channel, a power amplifier, a power supply, a time-frequency unit, and a transceiver antenna, wherein:

[0038] The human-computer interaction module is used for the initial default parameter setting of the signal source. It configures or modifies the signal frequency, working bandwidth, pseudo-code sequence, modulation mode, information rate, encoding and decoding mode, transceiver time slot table, transmission routing table and other parameters of the distributed interference signal source through the display and control software, and sends the relevant parameter information to the transceiver control module.

[0039] The transceiver control module is used to receive external command parameters from the human-computer interaction module or the signal receiving module, control the time slots for the device to transmit and receive signals, configure the signal frequency, working bandwidth, pseudo-code sequence, modulation mode, information rate, encoding and decoding mode of the device, and forward related telemetry and remote control data information according to the transmission routing table.

[0040] The signal generation module receives the transmission information content of the transceiver control module, modulates the information content according to the signal frequency, working bandwidth, pseudo code sequence, modulation mode, information rate, encoding and decoding mode and other parameter patterns in the transmission time slot, generates interference and measurement and control integrated signals, and transmits related signals.

[0041] The signal receiving module receives the receiving mode parameters of the transceiver control module and is responsible for capturing, tracking, and demodulating the remote control signal transmitted by the control node or the telemetry broadcast signal transmitted by other edge nodes in the receiving time slot.

[0042] The RF channel is responsible for analog-to-digital conversion, low-noise amplification, anti-interference filtering, etc. of signal reception and processing.

[0043] The power amplifier is responsible for synthesizing and amplifying the output signal of the signal generation module.

[0044] Power supply, responsible for powering the entire machine.

[0045] The time-frequency unit is responsible for providing the time-frequency reference signals required by other modules.

[0046] The transceiver antenna is responsible for transmitting and receiving radio frequency signals in time-sharing mode.

[0047] This embodiment also provides a signal link implementation method for time-division distributed interference and measurement and control integration for a distributed communication navigation interference signal source cooperative control device, specifically comprising:

[0048] Step 1: The distributed signal source device adopts an "integrated interference and measurement and control signal frame",

[0049] wherein the transmitted signal does not carry: The signal frame is divided into three working time slots: a control time slot, a polling interference and telemetry broadcast time slot, and a concurrent interference time slot. The control time slot is used for the central control node of the distributed interference signal source to externally transmit a signal containing configuration instruction information. The polling interference and telemetry broadcast time slot is used for each distributed node to alternately transmit interference signals carrying its own telemetry working conditions and the forwarded information of other nodes. The concurrent interference time slot is used for all distributed nodes to simultaneously transmit interference signals with valid information.

[0050] The duration of each signal frame is fixed at T and runs in a loop.

[0051] Each signal frame contains 1 control time slot, N polling interference and telemetry broadcast time slots, and several concurrent interference time slots, where N is the number of edge nodes.

[0052] The duration of each control time slot, polling interference and telemetry broadcast time slot, and concurrent interference time slot is t, including a guard interval, a pilot frequency band, and a data segment; no signal is transmitted by each node during the guard interval, which is used to eliminate the mutual interference of devices caused by time asynchrony; the pilot frequency band is a pilot frequency band signal modulated with fixed characters, which is used for the receiving end to capture, track, and bit synchronization; the data segment is a signal modulated with remote control information (control node) or telemetry information (edge node), which is used for self-organizing network communication between distributed interference signal sources.

[0053] The configurable parameters of the integrated interference and measurement and control signal frame include: the default signal frame duration is 1 s, the default duration of a single working time slot is 31.25 ms, the default guard interval in each time slot is 0.25 ms, the default frame header duration is 1 ms, the default data segment duration is 30 ms, and the default information rate is 8 kbps. The transmission power, signal frequency, and working bandwidth of the distributed interference signal source device can be flexibly set in the control time slot according to the actual application scenario requirements, and are not limited to the above default values.

[0054] Step 2: During the working of the control time slot, the central control node radiates a signal externally. The interference signal and the measurement and control signal adopt the same signal frequency and system pattern. The control signal generated by the central control node is modulated with the remote control instruction information for the edge distribution nodes. The remote control instruction information includes the configuration parameters of the "integrated interference and measurement and control" signal frame and time slots, the transmission routing table, as well as parameters such as the transmission power, signal frequency point, working bandwidth, pseudo-code sequence, modulation method, information rate, and coding and decoding method of each edge node.

[0055] In this time slot, each edge node receives the remote control instruction information and does not radiate a signal externally.

[0056] This time slot can be left empty, that is, all nodes in this time slot can refrain from radiating signals, meaning there are no new remote control instructions.

[0057] Step 3: Patrol and work on the interference and telemetry broadcast time slots. The signal source devices of each edge distribution node emit interference signals externally or receive the measurement and control signals of other nodes at different timesharing. Different working time slots are used for transmission and reception.

[0058] In this time slot, a single edge distribution node takes turns to radiate interference signals externally. The signals are modulated with the telemetry information of the local machine state. The telemetry information includes the working time of this node, device number, battery remaining capacity, transmission power, signal pattern parameters, and the received intensity and ranging information of the signals sent by other nodes, etc.; at the same time, forward the relay information of other nodes in the previous receiving time slot according to the routing table.

[0059] In this time slot, other edge distribution nodes and the central control node receive the telemetry information of other machines in this time slot and do not radiate signals externally.

[0060] Step 4: Work on the concurrent interference time slot. Each interference node emits interference signals externally at the same time and does not receive external signals.

[0061] Step 5: The central control node reconfigures the parameters. After the central control node of the distributed interference signal source device fails, only need to set any edge node to emit signals externally in the control time slot, then it will automatically become the new central control node.

[0062] The steps in this application can be adjusted, combined, and deleted in order according to actual needs.

[0063] Although this application is disclosed in detail with reference to the accompanying drawings, it should be understood that these descriptions are merely exemplary and are not used to limit the application of this application. The protection scope of this application is defined by the appended claims and may include various variations, modifications, and equivalent solutions made to the invention without departing from the protection scope and spirit of this application.

Claims

1. A distributed communication navigation interference signal source collaborative control device, including a central control node and a plurality of edge nodes, specifically including a human-computer interaction module, a transceiver control module, a signal generation module, and a signal receiving module, characterized in that: The human-computer interaction module is used for the initial default parameter setting of the signal source. The parameters including the signal frequency, working bandwidth, pseudo-code sequence, modulation mode, information rate, encoding and decoding mode, transceiver time slot table, and transmission routing table of the distributed interference signal source are configured or modified through the display and control software, and the parameter information is sent to the transceiver control module; The transceiver control module is used to receive external command parameters of the human-computer interaction module or the signal receiving module, control the time slot of the device to transmit and receive signals, configure the signal frequency, working bandwidth, pseudo code sequence, modulation mode, information rate, and working state of the encoding and decoding mode of the device, and forward relevant telemetry and remote control data information according to the transmission routing table; The signal generation module receives the transmission information content of the transceiver control module, modulates the information content in the transmission time slot according to the signal frequency, working bandwidth, pseudo code sequence, modulation mode, information rate, and encoding and decoding mode parameter style, generates interference and measurement and control integrated signals and transmits them; wherein: the signal frame is divided into three working time slots: control time slot, patrol interference and telemetry broadcast time slot, concurrent interference time slot; the control time slot is used for the central control node of the distributed interference signal source to transmit signals containing configuration instruction information to the outside, the patrol interference and telemetry broadcast time slot is used for each distributed node to take turns to transmit interference signals carrying its own telemetry working conditions and other nodes forwarding information, and the concurrent interference time slot is used for all distributed nodes to simultaneously transmit interference signals that do not carry valid information; The signal receiving module receives the receiving mode parameters of the transceiver control module and is responsible for capturing, tracking, and demodulating the remote control signal transmitted by the control node or the telemetry broadcast signal transmitted by other edge nodes in the receiving time slot.

2. The collaborative control device for distributed communication navigation interference signal sources according to claim 1, wherein: It also includes radio frequency channels, power amplifiers, power supplies, time and frequency units, and transceiver antennas; The RF channel is responsible for the ADC analog-to-digital conversion, signal low-noise amplification, bandpass filtering, and down-conversion processing before the signal receiving module, and converts it into a digital intermediate frequency signal and outputs it to the signal receiving module; The power amplifier is responsible for synthesizing and amplifying the output signal of the signal generation module; Power supply, responsible for powering the entire machine; The time-frequency unit is responsible for providing the time-frequency reference signals required by other modules; The transceiver antenna is responsible for transmitting and receiving radio frequency signals in time-sharing mode.

3. A time-division system distributed interference and measurement and control integrated signal link implementation method for a collaborative control device of a distributed communication navigation interference signal source, characterized in that Specifically include: Step 1: The distributed signal source equipment adopts "interference and measurement and control integrated signal frame", that is, the interference source signal and the equipment measurement and control signal use the same signal system; Among them: the signal frame is divided into three working time slots: control time slot, patrol interference and telemetry broadcast time slot, concurrent interference time slot; the control time slot is used for the central control node of the distributed interference signal source to transmit signals containing configuration instruction information to the outside, the patrol interference and telemetry broadcast time slot is used for each distributed node to take turns to transmit interference signals carrying its own telemetry working conditions and other nodes forwarding information, and the concurrent interference time slot is used for all distributed nodes to simultaneously transmit interference signals that do not carry valid information; Step 2: Control the time slot operation. The central control node radiates signals externally. The interference signal and the measurement and control signal use the same signal frequency and system pattern. The control signal generated by the central control node is modulated with the remote control instruction information for the edge distribution nodes. The remote control instruction information includes the configuration parameters for the "integrated interference and measurement and control" signal frame, time slot, and transmission routing table, as well as the transmission power, signal frequency point, working bandwidth, pseudo-code sequence, modulation method, information rate, encoding and decoding method parameters of each edge node. Step 3: Patrol the interference and telemetry broadcast time slots. The signal source devices of each edge distribution node transmit interference signals externally or receive the measurement and control signals of other nodes in a time-sharing manner. Among them, the externally transmitted interference signal carries the telemetry working conditions of itself and the information of other nodes in transit. Each node uses different working time slots for transmission and reception. Step 4: Work in the concurrent interference time slot. Each interference node transmits interference signals externally at the same time and does not receive external signals. Step 5: The central control node reconfigures the parameters. After the central control node of the distributed interference signal source device fails, only need to set any edge node to transmit signals externally in the control time slot, and it will automatically become the new central control node.

4. The method for realizing the time-division system distributed interference and measurement and control integrated signal link of the distributed communication navigation interference signal source cooperative control device according to claim 3, characterized in that: In step 1, the duration of each signal frame is fixed at T and runs cyclically; each signal frame includes 1 control time slot, N patrol interference and telemetry broadcast time slots, and several concurrent interference time slots, where N is the number of edge nodes.

5. The method for realizing the time-division system distributed interference and measurement and control integrated signal link of the distributed communication navigation interference signal source cooperative control device according to claim 4, characterized in that: In step 1, the duration of each control time slot, patrol interference and telemetry broadcast time slot, and concurrent interference time slot is t, including a protection gap, a pilot frequency band, and a data segment. No signal is transmitted by each node during the protection gap, which is used to eliminate the mutual interference of devices caused by time asynchrony. The pilot frequency band is a pilot frequency band signal modulated with fixed characters, which is used for the receiving end to capture, track, and bit synchronization.

6. The time-division system distributed interference and measurement and control integrated signal link implementation method for the collaborative control device of the distributed communication navigation interference signal source according to claim 4, characterized in that: In step 1, the configurable parameters of the integrated interference and measurement and control signal frame include: the default signal frame duration is 1s, the default single working time slot is 31.25ms, the default protection gap in each time slot is 0.25ms, the default frame header duration is 1ms, the default data segment duration is 30ms, and the default information rate is 8kbps.

7. The time-division system distributed interference and measurement and control integrated signal link implementation method for the collaborative control device of the distributed communication navigation interference signal source according to claim 4, characterized in that: In this time slot of step 3, a single edge distribution node takes turns to radiate interference signals externally. The signal is modulated with the telemetry information of the local state. The telemetry information includes the working time, device number, battery margin, transmission power, signal pattern parameters of this node, and the reception strength and ranging information of the signals sent by other nodes. At the same time, forward the transit information of other nodes in the previous reception time slot according to the routing table; other edge distribution nodes and the central control node receive the telemetry information of other machines in this time slot and do not radiate signals externally.

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