阅读说明：本技术 轨迹回溯的方法 (Method for backtracking track ) 是由 张丹立 柯知超 谷佳铭 赵锐 于 2021-07-28 设计创作，主要内容包括：本发明公开了轨迹回溯的方法,包括以下步骤：S1、数据采集和存储,建立管控区域的平面坐标,划分为多个网格区域；S2、数据筛选,将存储端中的数据导入计算机当中,对采集的数据进行分析筛选；S3、噪声去除,消除、弱化或压制图像中的随机变化干扰；S4、信息匹配,形成一个具有目标三维图像的目标信息,与服务器当中所记录的目标种类一一对比；S5、历史位置轨迹回溯,建立回溯模型确定目标上一时刻地理位置。本发明可查看管控区域内的物品和人员等信息,从而提升人员监督、工作调遣的效率,同时可查询或回放指定目标和人员的移动轨迹,进而判断其移动是否合规,有无工作期间串岗瞎逛等行为,实现岗位监督,保证工作流程符合安全管理标准。(The invention discloses a track backtracking method, which comprises the following steps: s1, acquiring and storing data, establishing plane coordinates of a control area, and dividing the plane coordinates into a plurality of grid areas; s2, data screening, namely importing the data in the storage end into a computer, and analyzing and screening the acquired data; s3, removing noise, and eliminating, weakening or suppressing random variation interference in the image; s4, matching information to form target information with a target three-dimensional image, and comparing the target information with the target types recorded in the server one by one; and S5, backtracking the historical position track, and establishing a backtracking model to determine the geographical position of the target at the last moment. The invention can check the information of articles, personnel and the like in the control area, thereby improving the efficiency of personnel supervision and work dispatching, and simultaneously inquiring or replaying the movement track of the designated target and the personnel, further judging whether the movement of the target is in compliance or not, and carrying out post supervision if the target is going to forget about the past posts during working, and the like, thereby realizing post supervision and ensuring that the working process meets the safety management standard.)

1. The method for backtracking the track is characterized by comprising the following steps of:

s1, data acquisition and storage, wherein plane coordinates of a control area are established and divided into a plurality of grid areas, a plurality of monitoring terminals are arranged in each grid area, and the monitoring terminals transmit recorded information to a storage terminal;

s2, data screening, namely importing the data in the storage end into a computer, analyzing and screening the acquired data, and removing irrelevant information;

s3, removing noise, and eliminating, weakening or suppressing random variation interference in the image;

s4, matching information to form target information with a target three-dimensional image, comparing the target information with the target types recorded in the server one by one to determine target actual information;

and S5, backtracking the historical position track, establishing a backtracking model to determine the geographical position of the target at the last moment, and finishing backtracking.

2. The trajectory backtracking method according to claim 1, wherein in S1, the monitoring terminal is disposed in a designated grid area, the monitoring terminal monitors and tracks the target stored in the newly entered area according to a preset monitoring rule, scans the shape of the target, transmits the collected information to the storage terminal, and extracts the information by the computer to generate a separate identity number for the target.

3. The track backtracking method according to claim 2, wherein the monitoring terminal comprises an infrared high-definition camera and a distance sensor, and the storage terminal comprises an entity data storage and a network data cloud server.

4. The method of claim 1, wherein in S2, the computer performs overlay fusion on the current location information of the target and the map of the area to obtain target data information with complete latitude and longitude, and removes the location area information not containing the specified target.

5. The trajectory backtracking method according to claim 1, wherein the S4 includes creating a three-dimensional image of the target from the noise-removed clear target image;

extracting the physical signs of the target, wherein the extracted characteristics comprise the color, the shape, the size, the category or the face and the height of the target;

fuzzy search is carried out from a database in the server according to the keywords with the extracted characteristics, and detailed information of all targets in the control area is recorded in the database of the server;

and matching the target searched in the server with the established three-dimensional image, determining the current target information with the highest coincidence degree, and separately recording and storing.

6. The trajectory backtracking method according to claim 5, wherein the step S5 includes obtaining geographic location coordinates of an area having the target at the current time from within the grid area, and inverting the geographic location coordinates of the target at the previous time a 1;

establishing a geographical position coordinate a2 of a backtracking target at the last moment of a backtracking model;

when the difference value between a1 and a2 is smaller than a set threshold value, the geographic position coordinates of the backtracking model are the position of the target at the previous moment;

and displaying the moving track of the target on a visualization terminal.

7. The method of claim 1, wherein in step S3, an image is selected from the acquired video for fourier transformation, a filter is set to extract a main noise component, a noise image is obtained after inverse transformation, and the noise image is subtracted from the clipped original image to obtain a de-noised image.

Technical Field

The invention relates to the technical field of monitoring, in particular to a track backtracking method.

Background

Along with the progress of the times, the safety production is more and more emphasized in industrial management, but the larger the factory area is, more and more personnel and products are needed to be managed, the requirement cannot be met by independent manual management, meanwhile, timely management and control of the whole area cannot be realized, if the personnel have unreasonable and non-compliant operations and are not found in time, bad results are easily caused, and how to comprehensively manage the targets in the area is particularly important.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a track backtracking method.

In order to solve the technical problems, the invention provides the following technical scheme:

the track backtracking method comprises the following steps:

s1, data acquisition and storage, wherein plane coordinates of a control area are established and divided into a plurality of grid areas, a plurality of monitoring terminals are arranged in each grid area, and the monitoring terminals transmit recorded information to a storage terminal;

s2, data screening, namely importing the data in the storage end into a computer, analyzing and screening the acquired data, and removing irrelevant information;

s3, removing noise, and eliminating, weakening or suppressing random variation interference in the image;

s4, matching information to form target information with a target three-dimensional image, comparing the target information with the target types recorded in the server one by one to determine target actual information;

and S5, backtracking the historical position track, establishing a backtracking model to determine the geographical position of the target at the last moment, and finishing backtracking.

As a preferred technical solution of the present invention, in S1, the monitor terminal is disposed in a designated grid area, the monitor terminal monitors and tracks the target stored in the newly entered area according to a preset monitoring rule, and scans the shape of the target, and the collected information is transmitted to the storage terminal, and the computer extracts the information to generate a separate identity number for the target.

As a preferred technical scheme of the invention, the monitoring terminal comprises an infrared high-definition camera and a distance sensor, and the storage end comprises an entity data storage and a network data cloud server.

As a preferred technical solution of the present invention, in S2, the computer performs overlay fusion on the current location information of the target and the map of the area to obtain target data information with complete longitude and latitude, and removes the location area information that does not include the specified target.

As a preferred embodiment of the present invention, the S4 includes creating a three-dimensional image of the target according to the clear target image after the noise is removed;

extracting the physical signs of the target, wherein the extracted characteristics comprise the color, the shape, the size, the category or the face and the height of the target;

fuzzy search is carried out from a database in the server according to the keywords with the extracted characteristics, and detailed information of all targets in the control area is recorded in the database of the server;

and matching the target searched in the server with the established three-dimensional image, determining the current target information with the highest coincidence degree, and separately recording and storing.

As a preferred technical solution of the present invention, the S5 includes obtaining an area geographic position coordinate having a target at a current time from within the grid area, and inverting a geographic position coordinate a1 at a previous time of the target;

establishing a geographical position coordinate a2 of a backtracking target at the last moment of a backtracking model;

when the difference value between a1 and a2 is smaller than a set threshold value, the geographic position coordinates of the backtracking model are the position of the target at the previous moment;

and displaying the moving track of the target on a visualization terminal.

As a preferred embodiment of the present invention, in S3, an image is selected from the acquired video and is subjected to fourier transform, a filter is set to extract a main noise component therein, a noise image is obtained after inverse transform, and a weighted noise image is subtracted from the intercepted original image, so as to obtain a de-noised image.

Compared with the prior art, the invention has the following beneficial effects:

the invention can check the information of articles, personnel and the like in the control area, thereby improving the efficiency of personnel supervision and work dispatching, and simultaneously inquiring or replaying the movement track of the designated target and the personnel, further judging whether the movement of the target is in compliance or not, and carrying out post supervision if the target is going to forget about the past posts during working, and the like, thereby realizing post supervision and ensuring that the working process meets the safety management standard.

Detailed Description

The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is in no way intended to limit the invention.

Example 1

The invention provides a track backtracking method, which comprises the following steps:

s1, data acquisition and storage, wherein a plane coordinate of a control area is established and divided into a plurality of grid areas, each grid area is provided with a plurality of monitoring terminals, the monitoring terminals transmit recorded information to a storage end, the monitoring terminals are arranged in the designated grid areas, the monitoring terminals monitor and track targets stored in the newly entered area through preset monitoring rules, simultaneously scan the shapes of the targets, transmit the collected information to the storage end, simultaneously extract the information by a computer to generate individual identity numbers for the targets, the monitoring terminals comprise infrared high-definition cameras and distance sensors, and the storage ends comprise an entity data storage and a network data cloud server;

s2, data screening, namely importing the data in the storage end into a computer, analyzing and screening the acquired data, removing irrelevant information, performing coverage fusion on the current position information of the target and the map of the area through the computer to obtain target data information with complete longitude and latitude, and removing position area information which does not contain the specified target;

s3, removing noise, eliminating, weakening or suppressing random variation interference in the image, selecting the image from the obtained video to perform Fourier transform, setting a filter to extract main noise components in the image, obtaining a noise image after inverse transform, and subtracting the weighted noise image from the intercepted original image to obtain a de-noised image;

s4, information matching is carried out to form target information with a target three-dimensional image, the target information is compared with the target types recorded in the server one by one to determine target actual information, and the target actual information comprises the step of establishing the target three-dimensional image according to the clear target image after the noise is removed;

extracting the physical signs of the target, wherein the extracted features comprise the color, shape, size and category of the target if the monitored target is an article, and the extracted features comprise the face and the height if the monitored target is a person;

fuzzy search is carried out from a database in the server according to the keywords with the extracted characteristics, and detailed information of all targets in the control area is recorded in the database of the server;

matching the target searched in the server with the established three-dimensional image, determining that the target with the highest coincidence degree is current target information, and separately recording and storing the current target information;

s5, backtracking the historical position track, establishing a backtracking model to determine the geographical position of the target at the last moment, completing backtracking, acquiring the geographical position coordinate of the area with the target at the current moment from the grid area, and inverting the geographical position coordinate a1 of the target at the last moment;

establishing a geographical position coordinate a2 of a backtracking target at the last moment of a backtracking model;

when the difference value between a1 and a2 is smaller than a set threshold value, the geographic position coordinates of the backtracking model are the position of the target at the previous moment;

and displaying the moving track of the target on a visualization terminal.

The invention can check the information of articles, personnel and the like in the control area, thereby improving the efficiency of personnel supervision and work dispatching, and simultaneously inquiring or replaying the movement track of the designated target and the personnel, further judging whether the movement of the target is in compliance or not, and carrying out post supervision if the target is going to forget about the past posts during working, and the like, thereby realizing post supervision and ensuring that the working process meets the safety management standard.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.