CN110913330A - RFID positioning system and algorithm thereof in fire-fighting training process - Google Patents

RFID positioning system and algorithm thereof in fire-fighting training process Download PDF

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Publication number
CN110913330A
CN110913330A CN201911079782.1A CN201911079782A CN110913330A CN 110913330 A CN110913330 A CN 110913330A CN 201911079782 A CN201911079782 A CN 201911079782A CN 110913330 A CN110913330 A CN 110913330A
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rfid
positioning
algorithm
cards
training process
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陈庆文
刘琦
张智超
周丽丽
国思茗
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Institute Of Intelligent Manufacturing Heilongjiang Academy Of Sciences
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Institute Of Intelligent Manufacturing Heilongjiang Academy Of Sciences
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/33—Services specially adapted for particular environments, situations or purposes for indoor environments, e.g. buildings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

An RFID positioning system and an algorithm thereof in a fire fighting training process, and an RFID positioning system and an algorithm thereof. The existing firefighter is in the training process of a firefighter indoor drilling training room, and due to the characteristics of short displacement and high speed, the general RFID positioning system is low in positioning accuracy and high in cost. An RFID positioning system and an algorithm thereof in a fire fighting training process are disclosed, wherein an RFID reader captures nearby RFID cards in the personnel moving process, the serial numbers of the RFID cards are read, a positioning space coordinate code is calculated by adopting an RFID positioning algorithm in the fire fighting training process and is sent to a client, and the client receives the positioning space coordinate code and correspondingly displays the positioning space coordinate code. The fire-fighting training process RFID positioning system and the algorithm thereof have the positioning accuracy of 0.5m, the cost of about 80 percent of that of a common RFID positioning system, and other performances equal to or slightly higher than that of the common RFID positioning system.

Description

RFID positioning system and algorithm thereof in fire-fighting training process
Technical Field
The invention relates to an RFID positioning system and an algorithm thereof in a fire fighting training process.
Background
A firefighter indoor drill training room is a training facility for simulating a real fire scene environment by using a simulation technology to train skills of firefighters. Because the training room is usually located indoor and is based on three-dimensional iron cage, the structural environment is complicated, and the structure signal influences seriously, so outside positioning systems such as GPS global positioning system that use usually are difficult to realize accurate location, and the error is too big, can't satisfy the demand of indoor location, can use usually under this condition based on indoor location techniques such as RFID, wiFi, zigBee. Compared with other technologies, the RFID has low requirements on hardware equipment, high response speed, strong stability and high positioning accuracy, and thus becomes the first choice of the indoor positioning technology. In the traditional RFID positioning method, the distance between the electronic tag and the card reader is obtained by collecting the signal receiving intensity, and then the coordinate of the electronic tag to be positioned is calculated by using a geometric method. And the firefighter has short displacement and high speed in the training process of the firefighter indoor drilling training room, so that the general RFID positioning system has low positioning precision and high cost. There is a need for a location system suitable for use during the indoor training of firefighters.
Disclosure of Invention
The invention aims to provide an RFID positioning system and an algorithm thereof in a fire fighting training process, aiming at solving the problems that a general RFID positioning system is low in positioning accuracy and high in cost due to the characteristics of short displacement and high speed in the training process of the existing fire fighter in a fire fighter training room.
An RFID positioning algorithm for a fire fighting training process, wherein the method is realized by the following steps:
step one, setting that an RFID reader at any place can capture 1-3 RFID cards, wherein the serial numbers of the RFID cards are a, b and c, and the calculation formula of the positioning algorithm of the space coordinate code n of the RFID card is as follows:
Figure 344959DEST_PATH_IMAGE001
step two, the number m of small areas can be divided in the ranges of a, b and c,
Figure DEST_PATH_IMAGE002
the range of a, b, c is considered as a minimum measurement space M, M being considered as one
Figure 710999DEST_PATH_IMAGE003
Figure DEST_PATH_IMAGE004
The three points a, b and c are positioned on 3 pairwise non-adjacent vertexes of the cuboid; the whole space Q of the training room is regarded as being composed of a finite number M1If the three points of (a) are initially set to 1, 2 and 3, the space is a = 1; b = 2; c = 3; a + b2=5；a+c2=10；b+a2=3；b+c2=11；c+a2=4；c+b2=7；a+b2+c2=14；b+a2+c2=12；c+a2+b2= 8; since 3 repeats, the modification is set to 2, 3, 4, and after spatial arrangement to {2, 3, 4, 7, 8, 11, 13, 17, 18, 19, 23, 27}, then M is2The initial values of the three points (3) are 5, 6 and 9, and the setting values of the three points (Mn) are obtained by the same type of deduction;
setting each M to be 12 cubic meters, setting the abduction volume to be 36 cubic meters, setting the height of a training room to be less than or equal to 5 meters and the volume to be less than or equal to 320 cubic meters, wherein the training room comprises 8M, and 24 RFID cards are required in the M; the RFID cards are arranged in the abduction space between every two M at intervals, at least 2 RFID cards can be captured in the abduction space, and the algorithm is the same as that of the above; wherein, the initial setting number of the FID card is more than 40, so as to ensure that the numbers of the M abduction spaces are all more than 1000;
and fourthly, sequentially editing the serial numbers of the RFID cards in the above mode, and after the RFID cards are set, when the trainees move in the training room, the RFID reader transmits the calculation results of the algorithm to the control center of the client side to finish positioning.
The utility model provides a RFID positioning system of fire control training process, comprises RFID reader, RFID card, client side triplex, and the working method is: and in the personnel moving process, the RFID reader captures nearby RFID cards, reads the serial numbers of the RFID cards, calculates positioning space coordinate codes by adopting an RFID positioning algorithm in the fire fighting training process, sends the positioning space coordinate codes to the client, and correspondingly displays the positioning space coordinate codes after the client receives the positioning space coordinate codes.
The invention has the beneficial effects that:
the fire-fighting training process RFID positioning system and the algorithm thereof basically realize the quick and high-precision RFID positioning system by using less RFID cards. The fire-fighting training process RFID positioning system and the algorithm thereof are mainly designed for a fire-fighting simulation drill training room, are more suitable for the special environment of the training room compared with other positioning modes, can effectively reduce the construction cost of the training room, and are beneficial to updating and upgrading fire-fighting training equipment in China.
The fire-fighting training process RFID positioning system and the algorithm thereof have the positioning accuracy of 0.5m, the cost of about 80 percent of that of a common RFID positioning system, and other performances equal to or slightly higher than that of the common RFID positioning system.
Drawings
FIG. 1 is a schematic view of the M space involved in the present invention;
fig. 2 is a diagram showing a layout of a first layer of RFID cards according to embodiment 1 of the present invention;
fig. 3 is a layout diagram of a second layer RFID card according to embodiment 1 of the present invention;
FIG. 4 is a diagram showing a layout of a first layer of RFID cards according to embodiment 2 of the present invention;
fig. 5 is a layout diagram of a second layer of RFID cards according to embodiment 2 of the present invention;
fig. 6 is a layout diagram of a third layer of RFID cards according to embodiment 2 of the present invention.
Detailed Description
The first embodiment is as follows:
the RFID positioning algorithm for the fire fighting training process is realized by the following steps:
step one, setting that an RFID reader at any place can capture 1-3 RFID cards, wherein the serial numbers of the RFID cards are a, b and c, and the calculation formula of the positioning algorithm of the space coordinate code n of the RFID card is as follows:
Figure 545969DEST_PATH_IMAGE001
step two, as shown in the M space diagram of FIG. 1, the number M of small regions can be divided in the ranges of a, b and c,
Figure 38130DEST_PATH_IMAGE002
the range of a, b, c is considered as a minimum measurement space M, M being considered as one
Figure 404389DEST_PATH_IMAGE003
Figure 821725DEST_PATH_IMAGE004
The three points a, b and c are positioned on 3 pairwise non-adjacent vertexes of the cuboid; the whole space Q of the training room is regarded as being composed of a finite number M1If the three points of (a) are initially set to 1, 2 and 3, the space is a = 1; b = 2; c = 3; a + b2=5；a+c2=10；b+a2=3；b+c2=11；c+a2=4；c+b2=7；a+b2+c2=14；b+a2+c2=12；c+a2+b2= 8; since 3 repeats, the modification is set to 2, 3, 4, and after spatial arrangement to {2, 3, 4, 7, 8, 11, 13, 17, 18, 19, 23, 27}, then M is2The initial values of the three points (3) are 5, 6 and 9, and the setting values of the three points (Mn) are obtained by the same type of deduction;
setting each M to be 12 cubic meters, wherein the abduction volume is about 36 cubic meters, and considering the cost, the height of a training room is generally set to be less than or equal to 5 cubic meters, and the volume of the training room is generally set to be less than or equal to 320 cubic meters, so that the general training room comprises 8M, and 24 RFID cards are required in the M; the RFID cards are arranged in the abduction space between every two M at intervals, at least 2 RFID cards can be captured in the abduction space, and the algorithm is the same as that of the above; wherein, the initial setting number of the FID card is more than 40, so as to ensure that the numbers of the M abduction spaces are all more than 1000; due to the different training room spaces, the required number of RFID cards in the abduction space is different, generally 8 to 16.
And fourthly, sequentially editing the serial numbers of the RFID cards in the above mode, after the RFID cards are set, when the trainees move in the training room, the RFID reader transmits the calculation results of the algorithm to the control center of the client side to finish positioning, and general data does not exceed 3 HEX.
The second embodiment is as follows:
different from the first specific embodiment, the RFID positioning system for the fire fighting training process in the first embodiment is composed of an RFID reader, an RFID card and a client, and the working mode is as follows: and in the personnel moving process, the RFID reader captures nearby RFID cards, reads the serial numbers of the RFID cards, calculates positioning space coordinate codes by adopting an RFID positioning algorithm in the fire fighting training process, sends the positioning space coordinate codes to the client, and correspondingly displays the positioning space coordinate codes after the client receives the positioning space coordinate codes.
Embodiment 1: a certain fire-fighting simulation training room a:
the training room has a double-layer structure, each layer is 48 square meters, and the top layer is the first layer. The RFID card is arranged as follows: fig. 2 shows a first layer and fig. 3 shows a second layer.
Embodiment 2: a certain fire-fighting simulation training room B:
the training room has three layers, each layer is 64 square meters, and the top layer is the first layer. The RFID card is arranged as follows: fig. 4 is a first layer, fig. 5 is a second layer and fig. 6 is a third layer.

Claims (2)

1. An RFID positioning algorithm in a fire fighting training process is characterized in that: the method is realized by the following steps:
step one, setting that an RFID reader at any place can capture 1-3 RFID cards, wherein the serial numbers of the RFID cards are a, b and c, and the calculation formula of the positioning algorithm of the space coordinate code n of the RFID card is as follows:
Figure 91558DEST_PATH_IMAGE001
step two, in the range of a, b and cThe number m of small areas can be divided in the enclosure,
Figure 486767DEST_PATH_IMAGE002
the range of a, b, c is considered as a minimum measurement space M, M being considered as one
Figure 363456DEST_PATH_IMAGE003
Figure 248236DEST_PATH_IMAGE004
The three points a, b and c are positioned on 3 pairwise non-adjacent vertexes of the cuboid; the whole space Q of the training room is regarded as being composed of a finite number M1If the three points of (a) are initially set to 1, 2 and 3, the space is a = 1; b = 2; c = 3; a + b2=5；a+c2=10；b+a2=3；b+c2=11；c+a2=4；c+b2=7；a+b2+c2=14；b+a2+c2=12；c+a2+b2= 8; since 3 repeats, the modification is set to 2, 3, 4, and after spatial arrangement to {2, 3, 4, 7, 8, 11, 13, 17, 18, 19, 23, 27}, then M is2The initial values of the three points (3) are 5, 6 and 9, and the setting values of the three points (Mn) are obtained by the same type of deduction;
setting each M to be 12 cubic meters, setting the abduction volume to be 36 cubic meters, setting the height of a training room to be less than or equal to 5 meters and the volume to be less than or equal to 320 cubic meters, wherein the training room comprises 8M, and 24 RFID cards are required in the M; the RFID cards are arranged in the abduction space between every two M at intervals, at least 2 RFID cards can be captured in the abduction space, and the algorithm is the same as that of the above; wherein, the initial setting number of the FID card is more than 40, so as to ensure that the numbers of the M abduction spaces are all more than 1000;
and fourthly, sequentially editing the serial numbers of the RFID cards in the above mode, and after the RFID cards are set, when the trainees move in the training room, the RFID reader transmits the calculation results of the algorithm to the control center of the client side to finish positioning.
2. The system for locating the RFID location of a fire training process using the RFID location algorithm of a fire training process of the preceding claim, wherein: the RFID card reader comprises an RFID reader, an RFID card and a client, and the working mode is as follows: and in the personnel moving process, the RFID reader captures nearby RFID cards, reads the serial numbers of the RFID cards, calculates positioning space coordinate codes by adopting an RFID positioning algorithm in the fire fighting training process, sends the positioning space coordinate codes to the client, and correspondingly displays the positioning space coordinate codes after the client receives the positioning space coordinate codes.
CN201911079782.1A 2019-11-07 2019-11-07 RFID positioning system and algorithm thereof in fire-fighting training process Pending CN110913330A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2221757A1 (en) * 2009-02-23 2010-08-25 Champtek Incorporated RFID location method and system thereof
CN107703938A (en) * 2017-09-22 2018-02-16 北京机械设备研究所 Active rfid indoor locating system and localization method for emergency command guiding
US20180373906A1 (en) * 2015-12-22 2018-12-27 Intel Corporation Rfid location detection

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2221757A1 (en) * 2009-02-23 2010-08-25 Champtek Incorporated RFID location method and system thereof
US20180373906A1 (en) * 2015-12-22 2018-12-27 Intel Corporation Rfid location detection
CN107703938A (en) * 2017-09-22 2018-02-16 北京机械设备研究所 Active rfid indoor locating system and localization method for emergency command guiding

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
刘琦等: "消防员组合定位技术的研究", 《自动化技术与应用》 *

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Application publication date: 20200324