A digital accordion wire mesh and its damage assessment system and assessment method

Abstract

The application discloses a digital bellows type wire mesh and a damage evaluation system and evaluation method thereof, and relates to the technical field of digital bellows type wire mesh, and discloses the bellows type wire mesh, a plurality of positioning tags, a UWB positioning communication base station and at least two UWB positioning base stations; the plurality of positioning tags are uniformly arranged along the length direction of the bellows type wire mesh, and form a digital bellows type wire mesh structure; the UWB positioning communication base station and the UWB positioning base station position the positioning tags; the UWB positioning communication base station and the UWB positioning base station are in communication connection; and the UWB positioning communication base station is connected with a remote server, wherein the application provides a digital bellows type wire mesh based on UWB positioning technology, and the digital bellows type wire mesh has the advantages of small data transmission amount, good real-time performance, high positioning accuracy and good environmental adaptability.

Description

Technical Field

[0001] The present invention relates to the field of training technology, and in particular to a digital accordion-type wire mesh and a damage assessment system and method thereof. Background Art

[0002] Accordion wire is a common obstacle, typically arranged in one to three rows or in a "品" formation, primarily used to block the passage of infantry and vehicles. Current methods for assessing damage to accordion wire include image interpretation, LiDAR scanning, and simulation. The image interpretation method refers to taking images of accordion wire and then conducting damage assessment through manual interpretation, or automatic interpretation through machine learning and other technologies. Image acquisition is greatly affected by weather conditions, and this method has poor environmental adaptability; the lidar scanning method uses a drone carrying a lidar to perform high-precision scanning of the accordion wire and conduct damage assessment through laser point cloud data. It has high accuracy and good environmental adaptability, but high cost, multiple data processing links, and large computational complexity, resulting in poor real-time performance; the simulation calculation method constructs a vulnerability model of the accordion wire and a power model of the ammunition, combined with the explosion point location data, and uses engineering-level simulation methods to carry out damage calculations. It has good repeatability, but is affected by factors such as data accumulation, model error, and simulation algorithm. The accuracy of damage assessment in complex terrain environments is poor.

[0003] Chinese patent CN214913212U discloses a digital rail barrier. The digital rail barrier disclosed in the patent can accurately measure the position information of the rail barrier fragments after the obstacle is broken by setting a positioning device in the rail barrier, thereby realizing the evaluation of the obstacle breaking efficiency. However, the patent also has certain defects:

[0004] First: The positioning device in this patent uses Beidou positioning. The position information has two functions: one is to determine the location of obstacles and debris after damage, and the other is to determine whether the rail fort is damaged by the change in the distance between the positioning devices. When the distance change between modules is used to determine whether it is damaged, when the Beidou signal is interfered with and a positioning error occurs, it is easy to misjudge damage.

[0005] Second, Beidou signals are easily blocked and interfered with, and positioning reliability is low in complex environments, which limits the use of rail fortifications.

[0006] Third: During Beidou positioning, the antenna must face upwards to ensure the positioning effect. Therefore, the patent designs a complex tumbler structure, which is costly. Summary of the Invention

[0007] The purpose of the present invention is to provide a digital accordion wire mesh and its damage assessment system and assessment method.

[0008] The digital concertina wire based on the UWB positioning technology has small data transmission, good real-time performance, high positioning accuracy and good environmental adaptability.

[0009] To achieve the above-mentioned purposes, the technical scheme of the present application is:

[0010] A digital concertina wire comprises a concertina wire, a plurality of positioning tags, one UWB positioning communication base station and at least two UWB positioning base stations. The positioning tags are uniformly arranged along the length direction of the concertina wire to form a digital concertina wire structure. The UWB positioning communication base station and the UWB positioning base station position the positioning tags. The UWB positioning communication base station is connected with a remote server.

[0011] Further, the distance between the positioning tags is at most 0.5 m.

[0012] Further, the communication frequency between the positioning tags and the UWB positioning communication base station and the UWB positioning base station is not less than 10 Hz.

[0013] Further, the communication frequency between the UWB positioning communication base station and the UWB positioning base station is not less than 10 Hz.

[0014] A damage evaluation system of the digital concertina wire receives data sent by the UWB positioning communication base station, completes damage evaluation calculation and three-dimensional effect display of the digital concertina wire, and comprises a data model library, a data analysis module, a damage calculation module and a three-dimensional display module.

[0015] The data model library provides basic data, evaluation models, damage models and three-dimensional models required for evaluation calculation.

[0016] The data analysis module receives data sent by the UWB positioning communication base station, and realizes functions of encoding of each area of the digital concertina wire, encoding of each positioning tag, and data packaging of the positioning tags.

[0017] The damage calculation module combines the damage models and the evaluation models to complete damage calculation of the concertina wire.

[0018] The three-dimensional display module combines the three-dimensional model of the concertina wire, the position information of the positioning tags and the damage data to complete three-dimensional display, which is convenient for checking by training personnel.

[0019] A damage evaluation method of the digital concertina wire comprises the following steps:

[0020] Step S1: Start the damage assessment system, UWB positioning communication base station and UWB positioning base station layout, digital accordion wire mesh layout, and full system connectivity test;

[0021] Step S2: The UWB positioning communication base station and the UWB positioning base station locate each positioning tag according to a preset frequency, and the UWB positioning base station sends the collected location information of the positioning tag to the UWB positioning communication base station;

[0022] Step S3: The UWB positioning communication base station sends the location data of each positioning tag to the damage assessment system according to the preset communication frequency;

[0023] Step S4: The data analysis module in the damage assessment system packages the positioning information of the positioning tag of a single digital accordion wire into a single data frame based on the digital accordion wire code and the positioning tag code, and sends it to the damage calculation module and the 3D display module;

[0024] Step S5: The damage calculation module performs damage judgment based on the positioning information of the positioning tag received in the data frame. The specific method of the damage judgment is as follows: the initial distance between two adjacent positioning tags is set to d meters, d <= 0.5; the positioning error of the positioning tag 20 is set to e, e <= d; when the distance D between the positioning information of a positioning tag received in the data frame and its initial position is greater than e, the accordion wire mesh within a range of d / 2 to the left and right of the positioning tag is judged to be damaged;

[0025] Step S6: A three-dimensional display module determines the location and size of the damaged channel of the accordion wire based on the damage assessment data from step S5, and performs a three-dimensional display by calling a three-dimensional model of the accordion wire.

[0026] Step S7: Repeat steps S5 and S6 until the damage assessment and three-dimensional display of each digital accordion wire fence are completed.

[0027] The beneficial effects of the present invention are:

[0028] (1) Good environmental adaptability. It can be used in daytime, nighttime, rainy and snowy environments, and has better environmental adaptability than image interpretation methods.

[0029] (2) Good real-time performance. The system only needs to collect, transmit and process the location information of the positioning tag, which has a small amount of data and better real-time performance than the lidar scanning method.

[0030] (3) High accuracy. The system directly collects the location information of each positioning tag on the accordion wire mesh, which is not affected by modeling and terrain environment, and has higher accuracy than simulation calculation methods.

[0031] (4) UWB base stations have high positioning accuracy and strong anti-interference capabilities, and have no requirements for antenna orientation. The positioning tag has a simple structure and low cost. The communication frequency is not less than 10Hz, which can ensure the real-time communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the digital concertina wire mesh structure.

[0033] Figure 2 Schematic diagram of the damage assessment system.

[0034] Figure 3 This is a structural diagram of Example 1.

[0035] In the figure: 10 is an accordion wire fence, 20 is a positioning tag, 30 is a UWB positioning communication base station, 40 is a UWB positioning base station, 41 is UWB positioning base station No. 1, 42 is UWB positioning base station No. 2, 43 is UWB positioning base station No. 3, 50 is a damage assessment system, 51 is a data model library, 52 is a data analysis module, 53 is a damage calculation module, and 54 is a three-dimensional display module. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings.

[0037] (refer to Figure 1 A digital accordion wire mesh, comprising an accordion wire mesh 10, a plurality of positioning tags 20, a UWB positioning communication base station 30, and at least two UWB positioning base stations 40; the plurality of positioning tags 20 are evenly spaced along the length of the accordion wire mesh 10 to form a digital accordion wire mesh structure;

[0038] The UWB positioning communication base station 30 and the UWB positioning base station 40 locate the positioning tag 20 ; the UWB positioning communication base station 30 and the UWB positioning base station 40 are in communication connection; the UWB positioning communication base station 30 is connected to a remote server.

[0039] Furthermore, the UWB positioning communication base station 30 and the UWB positioning base station 40 mainly realize two functions. One is to realize the positioning of the positioning tag 20 in the accordion wire fence 10; the other is to send various types of data to the remote server through the UWB positioning communication base station 30, so that the software on the remote server can display, judge damage and evaluate the position information of the positioning tag 20 after receiving it.

[0040] Furthermore, the initial distance between two adjacent positioning tags is set to d meters, d<=0.5; the positioning error of the positioning tag 20 is set to e, e<=d; when the damage calculation module 53 receives the distance D>e between the positioning information of a positioning tag and its initial position in the data frame, it is determined that the accordion wire mesh within the range of d / 2 to the left and right of the position of the positioning tag is damaged.

[0041] In this application, the positioning tag 20 is positioned using UWB base station positioning technology, which has stronger anti-interference ability, more reliable positioning in complex environments, a wide range of usage environments, and no requirements for antenna direction. The positioning tag 20 has a simple structure and can be purchased directly from the market at a low cost.

[0042] Furthermore, the communication frequency between the positioning tag 20 and the UWB positioning communication base station 30 and the UWB positioning base station 40 is not less than 10 Hz.

[0043] Furthermore, the communication frequency between the UWB positioning communication base station 30 and the UWB positioning communication base station 40 is not less than 10 Hz.

[0044] (refer to Figure 2 A damage assessment system for a digital accordion wire fence, wherein the damage assessment system 50 receives data transmitted by a UWB positioning communication base station 30 and performs damage assessment calculations and three-dimensional display of the digital accordion wire fence; the system includes a data model library 51, a data analysis module 52, a damage calculation module 53, and a three-dimensional display module 54;

[0045] The data model library 51 provides basic data, evaluation models, damage models and three-dimensional models required for evaluation calculations.

[0046] The data parsing module 52 receives the data sent by the UWB positioning communication base station 30, and realizes the functions of coding each area of ​​the digital accordion wire fence, coding each positioning tag, and packaging the positioning tag 20 data;

[0047] The damage calculation module 53 combines the damage model and the evaluation model to complete the damage calculation of the accordion wire mesh;

[0048] The three-dimensional display module 54 combines the three-dimensional model of the accordion wire fence, the position information of the positioning tag 20 and the damage data to complete the three-dimensional display, which is convenient for training personnel to view.

[0049] A digital accordion wire damage assessment method comprises the following steps:

[0050] Step S1: starting the damage assessment system 50, the UWB positioning communication base station 30 and the UWB positioning base station arrangement 40, the digital accordion wire mesh arrangement, and the whole system connectivity test;

[0051] Step S2: The UWB positioning communication base station 30 and the UWB positioning base station 40 locate each positioning tag 20 according to a preset frequency, and the UWB positioning base station 40 sends the collected position information of the positioning tag 20 to the UWB positioning communication base station 30;

[0052] Step S3: The UWB positioning communication base station 30 sends the location data of each positioning tag 20 to the damage assessment system 50 according to the preset communication frequency;

[0053] Step S4: The data analysis module 52 in the damage assessment system 50 packages the positioning information of the positioning tag 20 associated with a single digital accordion wire into a single data frame based on the digital accordion wire code and the positioning tag code, and sends it to the damage calculation module 53 and the 3D display module 54;

[0054] Step S5: The damage calculation module 53 performs damage judgment based on the positioning information of the positioning tag 20 received in the data frame. The specific method of the damage judgment is as follows: the initial distance between two adjacent positioning tags is set to d meters, d <= 0.5; the positioning error of the positioning tag 20 is set to e, e <= d; when the distance D between the positioning information of a positioning tag received in the data frame and its initial position is greater than e, the accordion wire mesh within a range of d / 2 to the left and right of the positioning tag is judged to be damaged;

[0055] Step S6: The three-dimensional display module 54 determines the location and size of the damaged passage of the accordion wire based on the damage assessment data of step S5, and performs a three-dimensional display by calling a three-dimensional model of the accordion wire.

[0056] Step S7: Repeat steps S5 and S6 until the damage assessment and three-dimensional display of each digital accordion wire fence are completed.

[0057] Example 1 (reference Figure 3 )

[0058] A plurality of accordion-type wire meshes 10 are set up in the training ground, and a UWB positioning communication base station 30 and three UWB positioning base stations 40 are set up around the training ground, namely UWB positioning base station No. 1 41, UWB positioning base station No. 2 42 and UWB positioning base station No. 3 43;

[0059] The UWB positioning communication base station 30 and the UWB positioning base station No. 1 41, UWB positioning base station No. 2 42, and UWB positioning base station No. 3 43 locate the positioning tags 20 in the multiple accordion-type wire meshes 10 in the training ground and obtain position information;

[0060] UWB positioning base station No. 1 41, UWB positioning base station No. 2 42, and UWB positioning base station No. 3 43 send the obtained location information to the UWB positioning communication base station 30. The UWB positioning communication base station 30 packages the collected location information of all positioning tags 20 and sends it to the damage assessment system on the remote server for subsequent damage judgment.

[0061] The data analysis module 52 in the damage assessment system 50 packages the positioning information of the positioning tag 20 belonging to a single digital accordion wire into a single data frame based on the digital accordion wire code and the positioning tag code, and sends it to the damage calculation module 53 and the three-dimensional display module 54;

[0062] The damage calculation module 53 performs damage judgment based on the positioning information of the positioning tag 20 received in the data frame; the specific method of the damage judgment is: set the initial distance between two adjacent positioning tags to d meters, d<=0.5; set the positioning error of the positioning tag 20 to e, e<=d; when the damage calculation module 53 receives the positioning information of a positioning tag in the data frame and the distance D>e between its initial position, it is judged that the accordion wire mesh within a range of d / 2 to the left and right of the position of the positioning tag is damaged.

[0063] The three-dimensional display module 54 determines the position and size of the damaged passage of the accordion wire fence based on the damage assessment data of step S5, and performs a three-dimensional display by calling the three-dimensional model of the accordion wire fence.

[0064] The embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

Claims

1. A digital accordion wire mesh, comprising an accordion wire mesh (10), characterized in that: It also includes a plurality of positioning tags (20), a UWB positioning communication base station (30) and at least two UWB positioning base stations (40); the plurality of positioning tags (20) are evenly spaced along the length direction of the accordion-shaped wire mesh (10) to form a digital accordion-shaped wire mesh structure; The UWB positioning communication base station (30) and the UWB positioning base station (40) position the positioning tag (20); the UWB positioning communication base station (30) and the UWB positioning base station (40) are communicatively connected; the UWB positioning communication base station (30) is connected to a remote server; The maximum distance between the positioning tags (20) is 0.5 meters; The communication frequency between the positioning tag (20) and the UWB positioning communication base station (30) and the UWB positioning base station (40) is not less than 10 Hz.

2. The digital accordion wire mesh according to claim 1, characterized in that: The communication frequency between the UWB positioning communication base station (30) and the UWB positioning base station (40) is not less than 10 Hz.

3. A digital accordion wire damage assessment system according to any one of claims 1 to 2, characterized in that: The damage assessment system (50) receives data sent by the UWB positioning communication base station (30) to complete the damage assessment calculation and three-dimensional effect display of the digital accordion wire mesh; it includes a data model library (51), a data analysis module (52), a damage calculation module (53) and a three-dimensional display module (54); The data model library (51) provides basic data, evaluation models, damage models and three-dimensional models required for evaluation calculations; The data analysis module (52) receives data sent by the UWB positioning communication base station (30), and realizes the functions of coding each area of ​​the digital accordion-type wire mesh, coding each positioning tag, and packaging the positioning tag (20) data; The damage calculation module (53) combines the damage model and the evaluation model to complete the damage calculation of the accordion wire mesh; The three-dimensional display module (54) combines the three-dimensional model of the accordion wire mesh, the position information of the positioning tag (20) and the damage data to complete the three-dimensional display, which is convenient for the training personnel to view.

4. An evaluation method for a digital accordion wire damage assessment system according to claim 3, characterized in that: The following steps are involved: Step S1: starting the damage assessment system (50), the UWB positioning communication base station (30) and the UWB positioning base station layout (40), the digital accordion wire mesh layout, and the whole system connectivity test; Step S2: The UWB positioning communication base station (30) and the UWB positioning base station (40) locate each positioning tag (20) according to a preset frequency; Step S3: The UWB positioning communication base station (30) sends the position data of each positioning tag (20) to the damage assessment system (50) according to a preset communication frequency; Step S4: The data parsing module (52) in the damage assessment system (50) packages the positioning information of the positioning tag (20) belonging to a single digital accordion wire fence into a single data frame according to the digital accordion wire fence code and the positioning tag code, and sends it to the damage calculation module (53) and the three-dimensional display module (54); Step S5: The damage calculation module (53) performs damage judgment based on the positioning information of the positioning tag (20) received in the data frame; the specific method of the damage judgment is: setting the initial distance between two adjacent positioning tags (20) to d meters, d<=0.5; setting the positioning error of the positioning tag (20) to e, e<=d; when the damage calculation module (53) receives the positioning information of a positioning tag (20) in the data frame and the distance D between its initial position>e, it is judged that the accordion wire mesh (10) within the range of d / 2 to the left and right of the position of the positioning tag (20) is damaged; Step S6: A three-dimensional display module (54) determines the location and size of the damaged channel of the accordion wire mesh based on the damage assessment data of step S5, and performs a three-dimensional display by calling a three-dimensional model of the accordion wire mesh; Step S7: Repeat steps S5 and S6 until the damage assessment and three-dimensional display of each digital accordion wire fence are completed.

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