CN116233864A - Deployment method and system for meeting error expectation by Bluetooth beacon personnel positioning - Google Patents

Deployment method and system for meeting error expectation by Bluetooth beacon personnel positioning Download PDF

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Publication number
CN116233864A
CN116233864A CN202310510261.7A CN202310510261A CN116233864A CN 116233864 A CN116233864 A CN 116233864A CN 202310510261 A CN202310510261 A CN 202310510261A CN 116233864 A CN116233864 A CN 116233864A
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bluetooth beacon
deployment
coverage
error
unit
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CN116233864B (en
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王三明
王聪明
胡小敏
赵伟帆
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Qiye Cloud Big Data Nanjing Co ltd
Anyuan Technology Co ltd
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Qiye Cloud Big Data Nanjing Co ltd
Anyuan Technology Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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

Abstract

The invention discloses a deployment method and a deployment system for Bluetooth beacon personnel positioning meeting error expectation, comprising a Bluetooth beacon fitting error formula unit, a signal intensity distance error unit, a positioning accuracy Bluetooth beacon trusted radius unit, a single-double-point expected coverage determination unit, a Bluetooth beacon coverage expectation unit, a coverage calculation unit and an output unit, wherein the Bluetooth beacon fitting error formula is determined according to a path loss model, and then the error sum of the distances corresponding to different signal intensities and the actual distance is obtained to obtain the trusted range radius value of a Bluetooth beacon; then determining the expected coverage of single points and double points, and further obtaining the corresponding Bluetooth beacon number and the expected coverage; and finally, determining the final coverage according to the active area and the corresponding Bluetooth beacon number and the coverage expectation. The invention optimizes the most coverage areas of the deployment number, thereby meeting the aims of pursuing small error and saving cost for users.

Description

Deployment method and system for meeting error expectation by Bluetooth beacon personnel positioning
Technical Field
The invention relates to a deployment method and a deployment system for meeting error expectation in positioning of Bluetooth beacon personnel, and belongs to the technical field of Bluetooth positioning.
Background
Bluetooth positioning is based on RSSI (Received Signal Strength Indication, signal field strength indication) values, and positioning is performed by the principle of triangulation. The method has many mature business applications in the fields of aged-care positioning, substation personnel positioning, chemical plant personnel positioning, building site personnel positioning and the like.
The existing Bluetooth positioning technology continuously transmits broadcast through a Bluetooth beacon, and after a positioning card collects Bluetooth signals, the positioning card performs preliminary calculation, and related Bluetooth information is transmitted to a server to perform positioning algorithm calculation. And combining the obtained personnel positioning data with a map to finish personnel positioning management.
The accuracy of the Bluetooth beacon is 2-5 meters, and the problems of personnel position negligence, travel route withdrawal, wall penetration and the like appear in practical application, and are generally solved by empirically deploying the inductive increase density. But this leads to an increase in cost. Most manufacturers are guided to increase deployment density, and the deployment density is solved by continuous error correction when engineering algorithms are implemented. This can lead to a lack of reasonable assessment of errors in the congenital, by marking the beacon group and averaging. Imbalance of the number of beacon deployments from the expected error is not achieved.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides a deployment method and a system for meeting error expectation in the positioning of Bluetooth beacon personnel, which have high precision and low deployment cost.
The technical scheme is as follows: in order to achieve the above purpose, the invention adopts the following technical scheme:
a deployment method for Bluetooth beacon personnel positioning meeting error expectation comprises the following steps:
step 1, determining a Bluetooth beacon fitting error formula according to a path loss model, obtaining errors of distances corresponding to different signal strengths and actual distances according to the Bluetooth beacon fitting error formula, and obtaining a reliable range radius value of a Bluetooth beacon according to different positioning accuracies.
And 2, determining the expected coverage of the single point and the double points according to the expected error and the trusted range radius value of the Bluetooth beacon obtained in the step 1.
And 3, obtaining corresponding Bluetooth beacon numbers and coverage expectations according to the single-point and double-point expected coverage.
Step 4, obtaining a corresponding Bluetooth beacon number and the expected coverage according to the active area and the step 3, and determining the final coverage:
when (when)
Figure SMS_1
When in use, a linear deployment mode is adopted, the interval between every two Bluetooth beacons is that
Figure SMS_2
。
When 1.75
Figure SMS_3
When the two rows are deployed in an isosceles triangle mode, the transverse interval is that
Figure SMS_4
Longitudinally spaced at
Figure SMS_5
。
When (when)
Figure SMS_6
When deployed in a regular triangle fashion, assume that
Figure SMS_7
For the arrangement, then:
Figure SMS_8
。
number of deployment rows
Figure SMS_9
。
Wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure SMS_10
for the lateral spacing at the time of deployment,
Figure SMS_11
for the longitudinal spacing to be the same,
Figure SMS_12
trusted range radius value of bluetooth beacon.
Figure SMS_13
For the width of the active area,
Figure SMS_14
to deploy the number of rows.
Preferably: path loss model in step 1:
Figure SMS_15
。
wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure SMS_16
representing the distance between the transmitting end and the receiving end,
Figure SMS_17
for the signal strength received by the receiving end,
Figure SMS_18
representing reception at a receiving end 1m from a transmitting end
Figure SMS_19
Values.
Figure SMS_20
The ambient decay factor is represented.
Preferably: in the step 1, the method for obtaining the error between the distance corresponding to different signal intensities and the actual distance according to the Bluetooth beacon fitting error formula comprises the following steps:
the mobile phone is used for respectively acquiring 5 Bluetooth beacons which are received by the mobile phone when the distance from the mobile phone 1m,2m and … … m is 1m,2m and … … m in an open environment
Figure SMS_21
Value, average the acquired data of multiple times each time, 1m
Figure SMS_22
Is taken as A, at 6m
Figure SMS_23
And substituting the signal intensity of the n-channel signal into a path loss model formula to obtain the n value. And calculating the errors of the distances corresponding to different signal intensities and the actual distances according to the calculated A and n values. And obtaining the trusted range radius value of the Bluetooth beacon according to different positioning accuracies.
Preferably: in step 3, the corresponding bluetooth beacon number and the expected method of coverage are obtained according to the expected coverage of single point and double points:
step 31, single point positioning, if square deployment is adopted, then:
Figure SMS_26
wherein, the method comprises the steps of, wherein,
Figure SMS_28
for the lateral spacing at the time of deployment,
Figure SMS_30
for the longitudinal spacing to be the same,
Figure SMS_25
trusted range radius value of bluetooth beacon. If a regular trilateral deployment is adopted:
Figure SMS_27
wherein, the method comprises the steps of, wherein,
Figure SMS_29
for the lateral spacing at the time of deployment,
Figure SMS_31
for the longitudinal spacing to be the same,
Figure SMS_24
trusted range radius value of bluetooth beacon.
Step 32, three-point positioning,
Figure SMS_32
wherein, the method comprises the steps of, wherein,
Figure SMS_33
for the lateral spacing at the time of deployment,
Figure SMS_34
for the longitudinal spacing to be the same,
Figure SMS_35
trusted range radius value of bluetooth beacon.
Preferably: the linear deployment is carried out, and the transverse distance during deployment is as follows:
Figure SMS_36
。
wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure SMS_37
for the lateral spacing at the time of deployment,
Figure SMS_38
for the longitudinal spacing to be the same,
Figure SMS_39
trusted range radius value of bluetooth beacon.
Figure SMS_40
Is the width of the active area.
Preferably: the isosceles triangle is deployed, and the transverse interval during deployment is as follows:
Figure SMS_41
。
wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure SMS_42
for the lateral spacing at the time of deployment,
Figure SMS_43
for the longitudinal spacing to be the same,
Figure SMS_44
trusted range radius value of bluetooth beacon.
Figure SMS_45
Is the width of the active area.
Preferably: the deployment of the equilateral triangle is realized, and the transverse interval during deployment is as follows:
Figure SMS_46
。
wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure SMS_47
for the lateral spacing at the time of deployment,
Figure SMS_48
for the longitudinal spacing to be the same,
Figure SMS_49
trusted range radius value of bluetooth beacon.
The deployment system for meeting the error expectation by the Bluetooth beacon personnel positioning comprises a Bluetooth beacon fitting error formula unit, a signal strength distance error unit, a positioning accuracy Bluetooth beacon trusted radius unit, a single-double-point expected coverage surface determining unit, a Bluetooth beacon coverage surface expected unit, a coverage calculating unit and an output unit, wherein the deployment system comprises the Bluetooth beacon fitting error formula unit, the signal strength distance error unit, the positioning accuracy Bluetooth beacon trusted radius unit, the single-double-point expected coverage surface determining unit, the Bluetooth beacon coverage surface expected unit, the coverage calculating unit and the output unit, wherein the deployment system comprises the following components:
the Bluetooth beacon fitting error formula unit is used for determining a Bluetooth beacon fitting error formula according to the path loss model.
The signal intensity distance error unit is used for obtaining the errors of the distances corresponding to different signal intensities and the actual distances according to the Bluetooth beacon fitting error formula.
The positioning accuracy Bluetooth beacon trusted radius unit is used for obtaining the trusted range radius value of the Bluetooth beacon according to different positioning accuracy.
The single-point and double-point expected coverage determining unit is used for determining single-point and double-point expected coverage according to the expected error and the trusted range radius value of the Bluetooth beacon.
The bluetooth beacon coverage expectation unit is used for obtaining corresponding bluetooth beacon numbers and coverage expectations according to the single-point and double-point expected coverage.
The coverage calculation unit is used for determining a final coverage method according to the active area, the corresponding Bluetooth beacon number and the coverage desire.
The output unit is used for outputting a final coverage method.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, through the relation between the trusted error and the RSSI, the aim that the pursuit error of a user is small and the cost can be saved is fulfilled by optimizing most coverage areas of the deployment number.
Drawings
FIG. 1 is a flow chart of the present invention.
Fig. 2 is a graph of expected error strength for a bluetooth beacon.
Fig. 3 is a graph of two bluetooth beacons intersecting (with expected errors).
Fig. 4 is a square deployment pattern profile (partial).
Fig. 5 is a positive trilateral deployment pattern profile (local).
Fig. 6 is a schematic square area diagram.
Fig. 7 is a schematic view of a regular hexagonal area.
Fig. 8 is a three-point positioning regular hexagonal deployment scenario.
Fig. 9 is a straight line deployment scenario.
Fig. 10 is an isosceles triangle deployment scenario.
Detailed Description
The present invention is further illustrated in the accompanying drawings and detailed description which are to be understood as being merely illustrative of the invention and not limiting of its scope, and various equivalent modifications to the invention will fall within the scope of the appended claims to the skilled person after reading the invention.
A deployment method for bluetooth beacon personnel positioning meeting error expectation, as shown in fig. 1, comprising the following steps:
step 1, determining a Bluetooth beacon fitting error formula according to a path loss model, obtaining errors of distances corresponding to different signal strengths and actual distances according to the Bluetooth beacon fitting error formula, and obtaining a reliable range radius value of a Bluetooth beacon according to different positioning accuracies.
Path loss model:
Figure SMS_50
。
wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure SMS_51
representing the distance between the transmitting end and the receiving end,
Figure SMS_52
for the signal strength received by the receiving end,
Figure SMS_53
representing reception at a receiving end 1m from a transmitting end
Figure SMS_54
Values.
Figure SMS_55
The ambient decay factor is represented.
The mobile phone is used for respectively acquiring 5 Bluetooth beacons which are received by the mobile phone when the distance from the mobile phone 1m,2m and … … m is 1m,2m and … … m in an open environment
Figure SMS_56
Value, take every timeMultiple acquisitions averaged over 1m
Figure SMS_57
Is taken as A, at 6m
Figure SMS_58
And substituting the signal intensity of the n-channel signal into a path loss model formula to obtain the n value. And calculating the error between the distance corresponding to different signal strengths and the actual distance according to the calculated A and n values (shown in figure 2). And obtaining the trusted range radius value of the Bluetooth beacon according to different positioning accuracies.
And 2, as shown in fig. 3, determining the expected coverage of the single point and the double points according to the expected error and the trusted range radius value of the Bluetooth beacon obtained in the step 1.
And 3, obtaining corresponding Bluetooth beacon numbers and coverage expectations according to the single-point and double-point expected coverage.
Assuming that the radius value of the trusted range of the bluetooth beacon is r (units: meters), the coverage area to be covered is sufficiently infinite. Deployment targets: so that the trusted range of bluetooth beacons completely covers the entire active area.
Step 31, single Point location
When the single point positioning scheme is applied, the random position of the active area is required to be covered by the trusted range of the Bluetooth beacon at least once.
Step 311, as shown in fig. 4, with square deployment, then:
Figure SMS_59
。
wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure SMS_60
for the lateral spacing at the time of deployment,
Figure SMS_61
for the longitudinal spacing to be the same,
Figure SMS_62
trusted range radius value for bluetooth beacons。
Step 312, as shown in FIG. 5, employs a positive trilateral deployment:
Figure SMS_63
。
wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure SMS_64
for the lateral spacing at the time of deployment,
Figure SMS_65
for the longitudinal spacing to be the same,
Figure SMS_66
trusted range radius value of bluetooth beacon.
When the space is arbitrarily large, the utilization area of each circle is as follows:
as shown in fig. 6: square area:
Figure SMS_67
。
as shown in fig. 7: hexagonal area:
Figure SMS_68
。
most factories adopt a square deployment mode, but according to the conclusion of fig. 6 and 7, when the active area is infinitely large, the deployment mode is deployed in a positive trilateral mode, and the utilization rate of the trusted range of the Bluetooth beacons is higher.
Step 32, three-point positioning
As shown in fig. 8: when the three-point positioning scheme is applied, any position of the active area is required to be covered by the trusted range of the Bluetooth beacon at least three times. Referring to the single point positioning normal trilateral deployment method of step 312, a normal trilateral deployment scheme in the case of three point positioning can be obtained:
Figure SMS_69
。
wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure SMS_70
for the lateral spacing at the time of deployment,
Figure SMS_71
for the longitudinal spacing to be the same,
Figure SMS_72
trusted range radius value of bluetooth beacon.
And 4, obtaining the corresponding Bluetooth beacon number and the coverage expectation according to the active area and the step 3, and determining a final coverage method.
Assuming the active area is long
Figure SMS_73
Wide, wide
Figure SMS_74
Is a rectangular region of the panel. Aiming at rectangular areas with different widths, different deployment modes are needed, the scheme only considers a single-point positioning deployment scheme, and the following two situations are analyzed firstly:
step 41, as shown in fig. 9: the deployment is linear, and the transverse distance during deployment is (in the critical case, the boundary point of the trusted range of the Bluetooth beacon is on the boundary):
Figure SMS_75
。
wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure SMS_76
for the lateral spacing at the time of deployment,
Figure SMS_77
for the longitudinal spacing to be the same,
Figure SMS_78
trusted range radius value of bluetooth beacon.
Figure SMS_79
Is the width of the active area.
Step 42, as shown in FIG. 10: the isosceles triangle is deployed, and the transverse distance during deployment is (in the critical case, the boundary points on two sides of the trusted range of the Bluetooth beacon are on the boundary):
Figure SMS_80
。
wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure SMS_81
for the lateral spacing at the time of deployment,
Figure SMS_82
for the longitudinal spacing to be the same,
Figure SMS_83
trusted range radius value of bluetooth beacon.
Figure SMS_84
Is the width of the active area.
Step 43, deployment of equilateral triangles, wherein the transverse spacing during deployment is as follows:
Figure SMS_85
。
wherein, the liquid crystal display device comprises a liquid crystal display device,
Figure SMS_86
for the lateral spacing at the time of deployment,
Figure SMS_87
for the longitudinal spacing to be the same,
Figure SMS_88
trusted range radius value of bluetooth beacon.
Step 44, solving the equation by the linear deployment mode and the critical value of isosceles triangle
Figure SMS_89
It can be seen that
Figure SMS_90
Step 41, step 42 and step 43 are integrated to obtainIs long according to the deployment mode of the active area
Figure SMS_91
Wide, wide
Figure SMS_92
The deployment method of the rectangular area of the (c) is as follows:
when (when)
Figure SMS_93
When in use, a linear deployment mode is adopted, the interval between every two Bluetooth beacons is that
Figure SMS_94
。
When 1.75
Figure SMS_95
When the two rows are deployed in an isosceles triangle mode, the transverse interval is that
Figure SMS_96
Longitudinally spaced at
Figure SMS_97
。
When (when)
Figure SMS_98
When deployed in a regular triangle fashion, assume that
Figure SMS_99
For the arrangement, then:
Figure SMS_100
。
number of deployment rows
Figure SMS_101
。
The deployment system for meeting the error expectation by the Bluetooth beacon personnel positioning comprises a Bluetooth beacon fitting error formula unit, a signal strength distance error unit, a positioning accuracy Bluetooth beacon trusted radius unit, a single-double-point expected coverage surface determining unit, a Bluetooth beacon coverage surface expected unit, a coverage calculating unit and an output unit, wherein the deployment system comprises the Bluetooth beacon fitting error formula unit, the signal strength distance error unit, the positioning accuracy Bluetooth beacon trusted radius unit, the single-double-point expected coverage surface determining unit, the Bluetooth beacon coverage surface expected unit, the coverage calculating unit and the output unit, wherein the deployment system comprises the following components:
the Bluetooth beacon fitting error formula unit is used for determining a Bluetooth beacon fitting error formula according to the path loss model.
The signal intensity distance error unit is used for obtaining the errors of the distances corresponding to different signal intensities and the actual distances according to the Bluetooth beacon fitting error formula.
The positioning accuracy Bluetooth beacon trusted radius unit is used for obtaining the trusted range radius value of the Bluetooth beacon according to different positioning accuracy.
The single-point and double-point expected coverage determining unit is used for determining single-point and double-point expected coverage according to the expected error and the trusted range radius value of the Bluetooth beacon.
The bluetooth beacon coverage expectation unit is used for obtaining corresponding bluetooth beacon numbers and coverage expectations according to the single-point and double-point expected coverage.
The coverage calculation unit is used for determining a final coverage method according to the active area, the corresponding Bluetooth beacon number and the coverage desire.
The output unit is used for outputting a final coverage method.
According to the invention, fewer trusted RSSI values are used for calculating the position through the target, the relation between the number of beacons and coverage is calculated through an algorithm, deployment is guided, the deployment number is reasonably designed by utilizing the characteristic of small error of the Bluetooth beacons in a short distance, and the deployment scheme is used for reducing the dependence on multiple beacons by more single-point beacons and double-point beacons.
The foregoing is only a preferred embodiment of the invention, it being noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the invention.

Claims (8)

1. The deployment method for the Bluetooth beacon personnel positioning meeting the error expectation is characterized by comprising the following steps:
step 1, determining a Bluetooth beacon fitting error formula according to a path loss model, obtaining errors of distances corresponding to different signal strengths and actual distances according to the Bluetooth beacon fitting error formula, and obtaining a reliable range radius value of a Bluetooth beacon according to different positioning accuracies;
step 2, determining single-point and double-point expected coverage according to the expected error and the reliable range radius value of the Bluetooth beacon obtained in the step 1;
step 3, obtaining corresponding Bluetooth beacon numbers and coverage expectations according to the single-point and double-point expected coverage;
step 4, obtaining a corresponding Bluetooth beacon number and the expected coverage according to the active area and the step 3, and determining the final coverage:
when (when)
Figure QLYQS_1
In the case of linear deployment, the interval between every two Bluetooth beacons is +.>
Figure QLYQS_2
；
When (when)
Figure QLYQS_3
In the process, two rows are deployed in an isosceles triangle mode, and the transverse interval is +.>
Figure QLYQS_4
Longitudinal spacing of->
Figure QLYQS_5
；
When (when)
Figure QLYQS_6
When deployed in a regular triangle fashion, assume +.>
Figure QLYQS_7
In order to deploy the number of rows,then:
Figure QLYQS_8
deployment line number->
Figure QLYQS_9
Wherein (1)>
Figure QLYQS_10
For lateral spacing at deployment, +.>
Figure QLYQS_11
For longitudinal distance>
Figure QLYQS_12
The trusted range radius value of the bluetooth beacon; />
Figure QLYQS_13
For the width of the active area>
Figure QLYQS_14
To deploy the number of rows.
2. The deployment method for bluetooth beacon personnel location satisfying error expectations of claim 1, wherein: path loss model in step 1:
Figure QLYQS_15
wherein (1)>
Figure QLYQS_16
Indicating the distance between the transmitting end and the receiving end, < >>
Figure QLYQS_17
Signal strength for the receiving end, +.>
Figure QLYQS_18
Representing reception at a receiving end 1m from a transmitting end />
Figure QLYQS_19
A value; />
Figure QLYQS_20
The ambient decay factor is represented.
3. The deployment method for bluetooth beacon personnel location satisfying error expectations of claim 2, wherein: in the step 1, the method for obtaining the error between the distance corresponding to different signal intensities and the actual distance according to the Bluetooth beacon fitting error formula comprises the following steps:
the mobile phone is used for respectively acquiring 5 Bluetooth beacons which are received by the mobile phone when the distance from the mobile phone 1m,2m and … … m is 1m,2m and … … m in an open environment
Figure QLYQS_21
Values, averaged over several acquisitions at a time, 1m +.>
Figure QLYQS_22
Is A, 6m +.>
Figure QLYQS_23
Substituting the signal intensity of the signal into a path loss model formula to obtain an n value; according to the calculated A and n values, calculating the errors of the distances corresponding to different signal intensities and the actual distances; and obtaining the trusted range radius value of the Bluetooth beacon according to different positioning accuracies.
4. A method of deployment for bluetooth beacon personnel location to meet error expectations as claimed in claim 3, wherein: in step 3, the corresponding bluetooth beacon number and the expected method of coverage are obtained according to the expected coverage of single point and double points:
step 31, single point positioning, if square deployment is adopted, then:
Figure QLYQS_24
wherein->
Figure QLYQS_27
For the lateral spacing at the time of deployment,
Figure QLYQS_29
for longitudinal distance>
Figure QLYQS_25
The trusted range radius value of the bluetooth beacon; if a regular trilateral deployment is adopted: />
Figure QLYQS_28
Wherein->
Figure QLYQS_30
For lateral spacing at deployment, +.>
Figure QLYQS_31
For longitudinal distance>
Figure QLYQS_26
The trusted range radius value of the bluetooth beacon;
step 32, three-point positioning,
Figure QLYQS_32
wherein->
Figure QLYQS_33
For lateral spacing at deployment, +.>
Figure QLYQS_34
For longitudinal distance>
Figure QLYQS_35
Trusted range radius value of bluetooth beacon.
5. The deployment method for bluetooth beacon personnel location satisfying error expectations of claim 4, wherein: the linear deployment is carried out, and the transverse distance during deployment is as follows:
Figure QLYQS_36
wherein (1)>
Figure QLYQS_37
For lateral spacing at deployment, +.>
Figure QLYQS_38
For longitudinal distance>
Figure QLYQS_39
The trusted range radius value of the bluetooth beacon; />
Figure QLYQS_40
Is the width of the active area.
6. The deployment method for bluetooth beacon personnel location to meet error expectations of claim 5, wherein: the isosceles triangle is deployed, and the transverse interval during deployment is as follows:
Figure QLYQS_41
wherein (1)>
Figure QLYQS_42
For lateral spacing at deployment, +.>
Figure QLYQS_43
For longitudinal distance>
Figure QLYQS_44
The trusted range radius value of the bluetooth beacon; />
Figure QLYQS_45
Is the width of the active area.
7. The bluetooth beacon personnel location of claim 6 satisfying error expectation deploymentThe method is characterized in that: the deployment of the equilateral triangle is realized, and the transverse interval during deployment is as follows:
Figure QLYQS_46
wherein (1)>
Figure QLYQS_47
For lateral spacing at deployment, +.>
Figure QLYQS_48
For longitudinal distance>
Figure QLYQS_49
Trusted range radius value of bluetooth beacon.
8. A deployment system for bluetooth beacon personnel location satisfying error expectations, characterized in that: the deployment method for meeting error expectation by bluetooth beacon personnel positioning according to claim 1, comprising a bluetooth beacon fitting error formula unit, a signal strength distance error unit, a positioning accuracy bluetooth beacon trusted radius unit, a single-double-point expected coverage determination unit, a bluetooth beacon coverage expectation unit, a coverage calculation unit and an output unit, wherein:
the Bluetooth beacon fitting error formula unit is used for determining a Bluetooth beacon fitting error formula according to the path loss model;
the signal intensity distance error unit is used for obtaining the errors of the distances corresponding to different signal intensities and the actual distances according to a Bluetooth beacon fitting error formula;
the positioning accuracy Bluetooth beacon trusted radius unit is used for obtaining a trusted range radius value of the Bluetooth beacon according to different positioning accuracy;
the single-point and double-point expected coverage determining unit is used for determining single-point and double-point expected coverage according to the expected error and the trusted range radius value of the Bluetooth beacon;
the Bluetooth beacon coverage expected unit is used for obtaining corresponding Bluetooth beacon numbers and coverage expectations according to the single-point and double-point expected coverage;
the coverage calculation unit is used for determining a final coverage method according to the active area and the corresponding Bluetooth beacon number and the coverage expectation;
the output unit is used for outputting a final coverage method.
CN202310510261.7A 2023-05-08 2023-05-08 Deployment method and system for meeting error expectation by Bluetooth beacon personnel positioning Active CN116233864B (en)

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CN113473364A (en) * 2021-07-02 2021-10-01 福建省新能海上风电研发中心有限公司 Offshore wind power operator positioning method and terminal
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CN101986758A (en) * 2010-11-10 2011-03-16 河海大学常州校区 Method for positioning wireless sensor network
CN104135750A (en) * 2014-08-20 2014-11-05 河海大学常州校区 Multiple mobile beacon set moving path planning method based on network density clustering of wireless sensor network
CN110320495A (en) * 2019-08-01 2019-10-11 桂林电子科技大学 A kind of indoor orientation method based on Wi-Fi, bluetooth and PDR fusion positioning
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