A method for coordinating the work of a comprehensive perception distributed electronic system

Abstract

The present application relates to the technical field of environment situation comprehensive perception, and discloses a kind of collaborative work method of comprehensive perception distributed electronic system, using the distributed electronic system including N distributed nodes, any two nodes in N nodes can communicate with each other, and node only works according to a certain single mode at any time;Wherein, N≥2 and N is integer.The present application solves the problems of poor situation awareness capability, obvious electromagnetic compatibility problem and great difficulty in spectrum control when facing environment situation comprehensive perception in prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of environmental situation comprehensive perception, and particularly relates to a cooperative working method of a comprehensive perception distributed electronic system. BACKGROUND

[0002] With the development of science and technology, the physical and electromagnetic environment of sensor work is becoming more and more complex and changeable, which leads to more and more severe challenges for the environmental situation perception of sensors. The environmental and situation information obtained by a single function sensor has been difficult to meet the demand, and it is necessary to use multiple sensors to comprehensively obtain environmental situation information. However, the comprehensive perception of environmental situation by multiple sensors faces a series of technical problems.

[0003] For the case of a single platform carrying multiple sensors, due to the space limitation between different sensors, electromagnetic compatibility problems are usually faced. For example, in order to meet the timeliness of perceived information, it is necessary to work simultaneously with passive sensors (such as electronic reconnaissance equipment) and active sensors (such as radar) in the same platform in the ideal case, but in this case, the signal transmitted by the active sensor easily affects the wideband receiving passive sensor, causing its receiving channel to be saturated, and thus causing the system comprehensive perception ability to decline and other problems.

[0004] In order to avoid the electromagnetic compatibility problem caused by the simultaneous work of sensors in a single platform, the sensors can be carried on different platforms. However, the existing method usually allocates different perception tasks to different nodes according to certain criteria, and the nodes independently perform tasks according to the allocation results. However, the cooperative granularity between different nodes in this mode is relatively coarse, and different nodes work independently after being allocated tasks, and have less interaction and cooperation with other nodes. Therefore, it is difficult for each node to master the receiving and transmitting state of other nodes, so the signal transmission of any node may interfere with other nodes, resulting in great difficulty in spectrum management and control of the system.

[0005] In view of the above defects, the present application designs a cooperative working mode of a distributed multi-functional electronic system for environmental situation comprehensive perception, which can reduce the influence of electromagnetic compatibility and node mutual interference, and improve the environmental situation perception ability of the system. According to the research status at home and abroad, the related research is still in the initial stage. SUMMARY

[0006] In order to overcome the shortcomings of the prior art, the present application provides a cooperative working method of a comprehensive perception distributed electronic system, which solves the problems of poor situation perception ability, obvious electromagnetic compatibility problem and great difficulty in spectrum management and control in the prior art for environmental situation comprehensive perception.

[0007] The technical scheme adopted by the present application to solve the above problems is:

[0008] A method for cooperative work of a comprehensive perception distributed electronic system, which adopts a distributed electronic system including N distributed nodes, any two nodes of the N nodes can communicate with each other, and the nodes only work in a single mode at any time; wherein N≥2 and N is an integer.

[0009] As a preferred technical solution, the nodes can switch different functions in time.

[0010] As a preferred technical solution, the residence time of different functions is the same.

[0011] As a preferred technical solution, N=3.

[0012] As a preferred technical solution, the method comprises the following steps:

[0013] S1, binding perception task parameter information: setting all nodes to work in a detection mode or a reconnaissance mode, then collecting and fusing situation information, determining a frequency band and a region division according to a fusion result, and finally uniformly binding task parameter information to all nodes;

[0014] S2, node numbering: according to the task parameter information of step S1, combining the number of nodes, designing a system function state switching time sequence, and numbering the nodes to be put into execution tasks;

[0015] S3, for any node, if the current time is in a transmitting state, the spatial position and the transmitting signal parameter range of other nodes in a transmitting state in the distributed electronic system are obtained, and then the spatial position and / or the transmitting signal parameter range of the node itself are adjusted; if the current time is in a receiving state, the spatial position and the receiving signal parameter range of other nodes in a receiving state in the distributed electronic system are obtained, and then the spatial position and / or the receiving signal parameter range of the node itself are adjusted.

[0016] As a preferred technical solution, in step S2, the system function state switching time sequence is designed by using a period extension method.

[0017] As a preferred technical solution, the method further comprises the following steps:

[0018] S4, if the task parameter information changes, new task parameter information is re-bound to each node through a communication mode, and then the step S2 is returned; if the task information does not change, the step S3 is continuously executed.

[0019] As a preferred technical solution, the detection mode includes using different frequency points or being responsible for different spaces.

[0020] As a preferred technical solution, the reconnaissance mode includes intercepting, sorting or identifying radiation source information.

[0021] As a preferred technical solution,

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] With the support of spatiotemporal synchronization technology, the system working mode designed by this method can adaptively design the functional state switching sequence of the distributed electronic system according to the task information and the number of our nodes. Each node works in staggered time according to the unified timing sequence, which can significantly reduce the electromagnetic compatibility design complexity of a single set of equipment and the difficulty of spectrum management among multiple different nodes, and improve the system's environmental and situational awareness capabilities. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a distributed electronic system used in this invention;

[0025] Figure 2 This is a timing diagram illustrating the multi-functional sensing capabilities of nodes when using the present invention (the nodes have three functions: detection, reconnaissance, and communication). Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0027] Example 1

[0028] like Figures 1-2 As shown, the purpose of this invention is to design a collaborative working mode for a distributed multi-functional electronic system composed of multiple equipment nodes with identical functions and performance parameters, oriented towards comprehensive environmental situation awareness. In this mode, each node first uses technologies such as atomic clocks and navigation satellite timing to unify time; then, based on mission information and the number of our nodes, the system's multi-functional switching sequence is designed; finally, different nodes work collaboratively in staggered shifts using the unified functional switching sequence, significantly reducing the complexity of electromagnetic compatibility design for a single set of equipment and the difficulty of spectrum control between different nodes, and improving the system's comprehensive ability to acquire environmental situation information.

[0029] like Figure 1 As shown, the distributed electronic system consists of N identical nodes. All nodes have the same system performance parameters. The nodes synchronize their time through navigation satellites, atomic clocks, etc. At any given time, each node operates in only one single mode (the single mode refers to one of the sensor's operating states, such as detection, reconnaissance, communication, jamming, imaging, etc., with detection, reconnaissance, and communication being typical examples here). This minimizes electromagnetic compatibility issues caused by multiple functions within a confined space. Nodes can switch between different functions in a time-sharing manner. Assuming that the dwell time for each function is the same, it is T. d It should be noted that the distributed electronic system described in this invention is not limited to...Figure 1 Such a structure is listed.

[0030] Accordingly, the distributed multi-functional electronic system cooperative work mode operation flow mainly includes the following 4 steps:

[0031] Step S1: In the initial stage, all nodes work in the detection (using different frequency points, responsible for different airspace, etc.) or reconnaissance mode (intercept, sorting, identifying enemy radiation source information), then the situation information is summarized and fused, the frequency band and regional division are determined according to the fusion result (for example, the two division method of key and non-key), and finally the perception task parameter information is uniformly bound to all nodes.

[0032] Step S2: According to the task parameter information of step S1, combined with the number of our nodes, the system function state switching time is designed by using the period extension method, and the nodes to be put into execution task are numbered (assuming there are N nodes, then the node number is 1~N).

[0033] Step S3: Each node according to the number, after different delay of the designed time sequence, starts to work (take node n (1<n<N) as an example to introduce the working mode, the delay of this node is T d ×(n-1)). At any time, if the node is in the detection function mode, it will switch to the corresponding function according to the delayed time sequence and perform the corresponding task; if the node is in the reconnaissance function mode, it will know the spatial position and emission signal parameter range of other nodes in the emission state at the current time according to the multi-functional switching time sequence and other node numbers, and then eliminate the electromagnetic interference between different nodes in the distributed system to the greatest extent in the spatial domain, frequency domain and other aspects, and maintain its reconnaissance performance. (For any node, if it is in the emission state at the current time, the spatial position and emission signal parameter range of other nodes in the emission state in the distributed electronic system are obtained, and then the spatial position and / or emission signal parameter range of the node is adjusted, the purpose is to reduce the interference of the current emission signal of the node to other nodes; if it is in the receiving state at the current time, the spatial position and receiving signal parameter range of other nodes in the receiving state in the distributed electronic system are obtained, and then the spatial position and / or receiving signal parameter range of the node is adjusted, the purpose is to weaken the influence of the electromagnetic signal radiated by other nodes in the emission state on the signal reception of the node.)

[0034] Step S4: If the environment changes (such as the situation information changes) cause the task to change, then rebind the task parameter information of all nodes through the communication mode, and then return to step S2; if the task information does not change, then continue to execute step S3.

[0035] The application provides a distributed multifunctional electronic system cooperative working mode facing environment situation comprehensive perception. The distributed system is composed of multiple equipment nodes with same function and performance parameters. Under the support of time and space synchronization technology, the system working mode designed by the method can adaptively design function state switching time sequence of the distributed electronic system according to task information and the number of nodes, and each node can work cooperatively according to the unified time sequence, so that the electromagnetic compatibility design complexity of a single set of equipment and the frequency spectrum management and control difficulty between multiple different nodes can be reduced, and the system environment and situation perception capability can be improved.

[0036] Embodiment 2

[0037] As shown in Figures 1-2 As a further optimization of embodiment 1, on the basis of embodiment 1, the embodiment also includes the following technical features:

[0038] Figure 2 In the example, the system includes three nodes. The function switching time sequence of all nodes is the same but the starting time is different: node 2 is delayed by one residence time than node 1, and node 3 is delayed by one residence time than node 2. At any time, different nodes only have one function, and each node switches the function state according to the function switching time sequence. However, from the comprehensive time sequence of all nodes, the entire distributed system has simultaneous multifunctional capability.

[0039] The three nodes can know the state of the other two nodes at any time according to their own number and time sequence. For example, at time t represented by the dashed line, node 1 is in the key frequency band reconnaissance mode, and nodes 2 and 3 are in the communication and detection function modes (both will radiate signals to the outside world). At this time, node 1 can know the working frequency band of nodes 2 and 3 at the current time according to the unified task information and the unified function time sequence, and perform filtering in the frequency domain; at the same time, according to the approximate position of nodes 2 and 3, spatial filtering is performed to maximize the mutual interference between different nodes. Since each node only needs to consider one function state at any time, the electromagnetic compatibility problem in the single platform simultaneous multifunctional mode is avoided, so various working parameters (transmit power, frequency point, signal pattern, and receive / transmit time window, etc.) can be flexibly used according to real-time task requirements in any function mode. From the comprehensive time sequence, the system can guarantee full-time coverage of key frequency bands and key areas, while considering certain situation information intercommunication / backhaul capability and non-key frequency band / area information acquisition capability, and maintaining or even improving the system perception performance.

[0040] As described above, the application can be well implemented.

[0041] All features disclosed in all embodiments in the specification, or all steps in the methods or processes impliedly disclosed, can be combined and / or extended, replaced, except for mutually exclusive features and / or steps, in any manner.

[0042] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Any simple modification, equivalent replacement, and improvement of the above embodiments, which are made according to the technical essence of the present application and within the spirit and principle of the present application, shall still fall within the protection scope of the technical scheme of the present application.

Claims

1. A method of coordinating the work of a distributed electronic system of integrated perception, characterized in that, A distributed electronic system comprising N distributed nodes, any two of the N nodes being able to communicate with each other, the nodes working in only one mode at any time; wherein N>2 and N is an integer; The nodes are able to switch between different functions in time; The residence time of different functions is the same; The method comprises the following steps: S1, binding awareness task parameter information: setting all nodes to work in a detection mode or a reconnaissance mode, then collecting and fusing the situation information, determining the frequency band and area division according to the fusion result, and finally uniformly binding the task parameter information to all nodes; S2, node numbering: according to the task parameter information of step S1, combining the number of nodes, designing the system function state switching time sequence, and numbering the nodes to be put into execution task; S3, for any node, if the current time is in the transmitting state, the spatial position and transmitting signal parameter range of other nodes in the transmitting state in the distributed electronic system are obtained, and then the spatial position and / or transmitting signal parameter range of the node itself are adjusted; if the current time is in the receiving state, the spatial position and receiving signal parameter range of other nodes in the receiving state in the distributed electronic system are obtained, and then the spatial position and / or receiving signal parameter range of the node itself are adjusted.

2. The method of claim 1, wherein, N=3。 3. The method of claim 1, wherein, In step S2, the system function state switching time sequence is designed by using the period extension method.

4. The method of claim 3, wherein, Further comprising the following steps: S4, if the task parameter information changes, the new task parameter information is re-bound to each node through the communication mode, and then step S2 is returned; if the task information does not change, step S3 is continuously executed.

5. The method of claim 4, wherein, The detection mode includes using different frequency points or being responsible for different space.

6. The method of claim 5, wherein, The reconnaissance mode includes intercepting, sorting or identifying radiation source information.

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