阅读说明：本技术 高精度人员定位的方法 (High-precision personnel positioning method ) 是由 柯知超 张丹立 谷佳铭 赵锐 于 2021-07-14 设计创作，主要内容包括：本发明公开了高精度人员定位的方法,包括设置基站,在定位区域预先设置间隔固定的无线接入节点,并测量得到所有无线接入节点的位置信息,人员携带定位标签、卡片、手环或无线终端。本发明通过多种定位方式同时进行定位信息的确定,通过定位标签、卡片、手环或无线终端上传三个接入节点无线信号强度变化趋势判断,可同时进行多个人员的定位,降低了在高速条件下定位人员漏检率,且能够及时发现人员定位问题,进行解决,通过对接入节点、坐标轴设置以及解方程式计算的方法,大大提高了定位精度,同时具有实现简单、位置分析算法简便、定位代价小、成本低的优势,并且其定位精度高,适用于各种环境和人员。(The invention discloses a high-precision personnel positioning method which comprises the steps of setting a base station, presetting wireless access nodes with fixed intervals in a positioning area, measuring and obtaining the position information of all the wireless access nodes, and carrying a positioning label, a card, a bracelet or a wireless terminal by personnel. The method and the device simultaneously determine the positioning information through a plurality of positioning modes, can simultaneously position a plurality of persons by uploading the judgment of the change trend of the wireless signal intensity of three access nodes through the positioning labels, the cards, the bracelets or the wireless terminals, reduce the omission ratio of the positioning persons under the high-speed condition, and can find the positioning problem of the persons in time for solving the positioning problem.)

1. The method for positioning the high-precision personnel is characterized by comprising the following steps:

a. setting a base station, presetting wireless access nodes with fixed intervals in a positioning area, measuring to obtain position information of all the wireless access nodes, and configuring a positioning tag, a card, a bracelet or a wireless terminal;

b. personnel carry positioning tags, cards, bracelets or wireless terminals, and acquire the wireless signal intensity of three or more adjacent access nodes as a positioning base station;

c. when the change of a signal access point of a certain access node is detected, judging the limited range beside the access node, receiving a reference position, calculating the walking distance of a person carried by a positioning tag, a card, a bracelet or a wireless terminal when the strength of the collected signal of the reference point begins to become small, calculating the distance between the positioning tag, the card, the bracelet or the wireless terminal and the reference point, and triggering an alarm system to carry the person to communicate when the collected reference point does not change;

d. and calculating the distance between the current position and the other two nodes according to the position information of the three or more wireless access nodes and the variation of the signal strength between the positioning label, the card, the bracelet or the wireless terminal and the other two nodes in the three wireless access nodes, and calculating the position.

2. A method for locating a person with high accuracy as claimed in claim 1, wherein in the step c, an alarm is given if the reference point is unchanged, specifically, if the time that the person stays still at a certain position exceeds the rated time, the alarm is given to the base station, and a confirmation signal is sent to the person via the base station, and if no answer is given, emergency processing is performed.

3. A method for locating people with high accuracy according to claim 1, wherein the access mode of the wireless terminal to the network in step a can be one or more of the following modes: Wi-Fi, Bluetooth, infrared, radio frequency identification, Zigbee, and RFID.

4. A method for high-precision personnel location according to claim 1, wherein the wireless access node in step a can be located indoors, on the ground or underground.

5. The method for high-precision person positioning according to claim 1, wherein the bracelet and the wireless terminal in the step a comprise an angle sensor, and whether the carrying person turns or not is calculated through the angle sensor.

6. The method of claim 1, wherein the calculation of the position of the person in steps c and d can also be performed by using the known fixed position of the wireless access node, the unknown position of the tag, the card, the bracelet, or the wireless terminal as a variable, setting three coordinate axes by using the location tag, the card, the bracelet, or the wireless terminal as an origin through the communication between the location tag, the card, the bracelet, or the wireless terminal and the base station, and obtaining the accurate coordinate position of the person by using the distance and the angle information between the origin and the wireless access node, or calculating the unknown coordinate from the known coordinate by solving an equation.

Technical Field

The invention relates to the field of personnel positioning, in particular to a high-precision personnel positioning method.

Background

Currently, the most commonly used areas of personnel positioning systems are mines and prisons. In the field of mines, underground workers are tracked and positioned in real time, when an accident happens, rescue workers can master the personnel information and the equipment information of the accident site in real time according to data, graphs and the like provided by the system, the positions and the quantity of the workers are determined quickly and accurately, corresponding rescue measures are taken in time, and the efficiency of emergency rescue work is improved. The application in prisons is mainly to carry out real-time positioning management on workers and criminals in prison management, alarm is given in time when abnormal conditions occur, the prison security capability is effectively enhanced, and prison management difficulty is reduced.

At present, a positioning system of personnel takes pictures of personnel passing through a formulated area by adopting a camera, then identifies human faces in images, however, when many personnel pass through the camera shooting range, the workload of identification and statistics is large, and the efficiency is low.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a high-precision personnel positioning method.

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

the invention relates to a high-precision personnel positioning method, which specifically comprises the following steps:

a. setting a base station, presetting wireless access nodes with fixed intervals in a positioning area, measuring to obtain position information of all the wireless access nodes, and configuring a positioning tag, a card, a bracelet or a wireless terminal;

b. personnel carry positioning tags, cards, bracelets or wireless terminals, and acquire the wireless signal intensity of three or more adjacent access nodes as a positioning base station;

c. when the change of a signal access point of a certain access node is detected, judging the limited range beside the access node, receiving a reference position, calculating the walking distance of a person carried by a positioning tag, a card, a bracelet or a wireless terminal when the strength of the collected signal of the reference point begins to become small, calculating the distance between the positioning tag, the card, the bracelet or the wireless terminal and the reference point, and triggering an alarm system to carry the person to communicate when the collected reference point does not change;

d. and calculating the distance between the current position and the other two nodes according to the position information of the three or more wireless access nodes and the variation of the signal strength between the positioning label, the card, the bracelet or the wireless terminal and the other two nodes in the three wireless access nodes, and calculating the position.

In a preferred embodiment of the present invention, the step c of alarming without change of the reference point is to alarm when the carrier is kept at a certain position for a time longer than a rated time, and to alarm the base station and to transmit a confirmation signal to the carrier through the base station, and to perform emergency processing if there is no reply.

As a preferred technical solution of the present invention, in the step a, the access mode of the wireless terminal accessing the network may be one or more of the following modes: Wi-Fi, Bluetooth, infrared, radio frequency identification, Zigbee, and RFID.

As a preferred embodiment of the present invention, the wireless access node in step a may be located indoors, on the ground, or underground.

As a preferred technical solution of the present invention, the bracelet and the wireless terminal in the step a include an angle sensor, and whether the carrying person turns is calculated by the angle sensor.

As a preferred technical solution of the present invention, the calculation of the position of the person in steps c and d may also be performed in a manner that the position of the wireless access node is known, fixed and unchangeable, the position of the location tag, the card, the bracelet, or the wireless terminal is unknown and variable, the three-point coordinate axes are set by using the position of the location tag, the card, the bracelet, or the wireless terminal as an origin through the communication between the location tag, the card, the bracelet, or the wireless terminal and the base station, and the accurate coordinate position of the person can be obtained through the distance and angle information between the origin and the wireless access node, or the unknown coordinate can be calculated from the known coordinate through the form of solving an equation.

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

1: the method simultaneously determines the positioning information through a plurality of positioning modes, uploads the change trend judgment of the wireless signal intensity of three access nodes through the positioning label, the card, the bracelet or the wireless terminal, and carries out steering confirmation through the angle sensor, can simultaneously position a plurality of personnel, reduces the missing rate of the positioning personnel under the high-speed condition, can find the personnel positioning problem in time, solves the problem, greatly improves the positioning precision through the methods of setting the access nodes and the coordinate axes and calculating the solution equation, has the advantages of simple realization, simple and convenient position analysis algorithm, low positioning cost and high positioning precision, and is suitable for various environments and personnel.

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 high-precision personnel positioning method, which specifically comprises the following steps:

a. setting a base station, presetting wireless access nodes with fixed intervals in a positioning area, measuring to obtain the position information of all the wireless access nodes, and configuring a positioning label;

b. personnel carry a positioning tag and acquire the wireless signal intensity of three adjacent access nodes as a positioning base station;

c. when the change of a signal access point of a certain access node is detected, judging the limited range beside the access node, receiving a reference position, calculating the walking distance of a positioning tag carrying a person when the strength of a signal collected to the reference point begins to become small, calculating the distance between the positioning tag and the reference point, alarming the base station when the person is kept still at a certain position for more than the rated time, sending a confirmation signal to the carrying person through the base station, and performing emergency processing if no reply exists;

d. and calculating the distance between the current position and the other two nodes according to the position information of the three or more wireless access nodes and the variation of the signal strength between the positioning label and the other two nodes in the three wireless access nodes, and calculating the position.

Example 2

The invention provides a high-precision personnel positioning method, which specifically comprises the following steps:

a. setting a base station, presetting wireless access nodes with fixed intervals in a positioning area, measuring to obtain position information of all the wireless access nodes, and preparing a card;

b. personnel carry the card, gather the wireless signal intensity of a plurality of adjacent access nodes, as the base station of the positioning;

c. when the change of a signal access point of a certain access node is detected, judging the limited range beside the access node, receiving a reference position, calculating the walking distance of a card carrier when the signal intensity of the collected reference point begins to become small, calculating the distance between the card and the reference point, alarming the base station when the carrier keeps still at a certain position for more than the rated time, sending a confirmation signal to the carrier through the base station, and carrying out emergency processing if no reply exists;

d. and calculating the distance between the current position and the other two nodes according to the position information of the plurality of wireless access nodes and the variation of the signal strength between the card and the other two nodes in the three wireless access nodes, and calculating the position.

Example 3

The invention provides a high-precision personnel positioning method, which specifically comprises the following steps:

a. setting a base station, presetting wireless access nodes with fixed intervals in a positioning area, measuring to obtain position information of all the wireless access nodes, and equipping a bracelet;

b. the method comprises the following steps that personnel carry a bracelet, and the wireless signal intensity of three adjacent access nodes is collected to be used as a positioning base station;

c. the position of the wireless access node is known, fixed and unchangeable, the position of the bracelet is unknown and variable, three-point coordinate axes are set by taking the position of the bracelet as an origin through the communication between the bracelet and the base station, and the accurate coordinate position for carrying people can be obtained through the distance and angle information between the origin and the wireless access node;

d. if the time that the carrier keeps still at a certain position exceeds the rated time, the alarm is sent to the base station, a confirmation signal is sent to the carrier through the base station, and if the carrier does not return, emergency treatment is carried out.

Example 4

The invention provides a high-precision personnel positioning method, which specifically comprises the following steps:

a. setting a base station, presetting wireless access nodes with fixed intervals in a positioning area, measuring to obtain the position information of all the wireless access nodes, and configuring a wireless terminal;

b. the personnel carry a wireless terminal, and the wireless signal intensity of a plurality of adjacent access nodes is collected to be used as a positioning base station;

c. the position of the wireless access node is known, fixed and invariable, the position of the wireless terminal is unknown and variable, and the unknown coordinates are calculated from the known coordinates through the communication between the wireless terminal and the base station in the form of solving an equation;

d. if the time that the carrier keeps still at a certain position exceeds the rated time, the alarm is sent to the base station, a confirmation signal is sent to the carrier through the base station, and if the carrier does not return, emergency treatment is carried out.

Example 5

The invention provides a high-precision personnel positioning method, which specifically comprises the following steps:

a. setting a base station, presetting wireless access nodes with fixed intervals in a positioning area, measuring to obtain the position information of all the wireless access nodes, and configuring a positioning label;

b. personnel carry a positioning tag and acquire the wireless signal intensity of three adjacent access nodes as a positioning base station;

c. the position of the wireless access node is known, fixed and unchanged, the position of the positioning label is unknown and changed, three-point coordinate axes are set by taking the position of the positioning label as an original point through the communication between the positioning label and the base station, and the accurate coordinate position for carrying people can be obtained through the distance and angle information between the original point and the wireless access node;

d. if the time that the carrier keeps still at a certain position exceeds the rated time, the alarm is sent to the base station, a confirmation signal is sent to the carrier through the base station, and if the carrier does not return, emergency treatment is carried out.

Example 6

The invention provides a high-precision personnel positioning method, which specifically comprises the following steps:

a. setting a base station, presetting wireless access nodes with fixed intervals in a positioning area, measuring to obtain position information of all the wireless access nodes, and preparing a card;

b. personnel carry the card, gather the wireless signal intensity of three adjacent access nodes, as the base station of the positioning;

c. the position of the wireless access node is known, fixed and unchanged, the position of the card is unknown and variable, three-point coordinate axes are set by taking the position of the card as an original point through the communication between the card and the base station, and the accurate coordinate position of a carrying person can be obtained through the distance and angle information between the original point and the wireless access node;

d. if the time that the carrier keeps still at a certain position exceeds the rated time, the alarm is sent to the base station, a confirmation signal is sent to the carrier through the base station, and if the carrier does not return, emergency treatment is carried out.

The method simultaneously determines the positioning information through a plurality of positioning modes, uploads the change trend judgment of the wireless signal intensity of three access nodes through the positioning label, the card, the bracelet or the wireless terminal, and carries out steering confirmation through the angle sensor, can simultaneously position a plurality of personnel, reduces the missing rate of the positioning personnel under the high-speed condition, can find the personnel positioning problem in time, solves the problem, greatly improves the positioning precision through the methods of setting the access nodes and the coordinate axes and calculating the solution equation, has the advantages of simple realization, simple and convenient position analysis algorithm, low positioning cost and high positioning precision, and is suitable for various environments and personnel.

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.