CN110072283A - Bluetooth localization method, device, location-server and machine readable storage medium - Google Patents
Bluetooth localization method, device, location-server and machine readable storage medium Download PDFInfo
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- CN110072283A CN110072283A CN201910349287.1A CN201910349287A CN110072283A CN 110072283 A CN110072283 A CN 110072283A CN 201910349287 A CN201910349287 A CN 201910349287A CN 110072283 A CN110072283 A CN 110072283A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- 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
- H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
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Abstract
The embodiment of the invention provides a kind of bluetooth localization method, device, location-server and machine readable storage mediums, this method comprises: location-server obtains the detection information of each specified test point and the actual position information of pre-stored each specified test point, detection information includes the location information being calculated when each specified test point carries out position detection；According to the actual position information of each specified test point and the location information being calculated, the distance between the actual position information based on specified test point and the location information being calculated error are determined；According to range error, signal intensity attenuation value is calculated；Based on signal intensity attenuation value, adjustment signal intensity a reference value, and bluetooth positioning is carried out using signal strength reference value adjusted.The present invention improves bluetooth positioning accuracy by optimization signal strength reference value.
Description
Technical field
The present invention relates to wireless location technology fields, more particularly to a kind of bluetooth localization method, device, location-server
And machine readable storage medium.
Background technique
With the rapid growth of data service and multimedia service, demand of the people to positioning increasingly increases, especially in room
Interior environment, such as airport hall, exhibition room, warehouse, supermarket, library, in the environment of underground parking, it is thus necessary to determine that out it is mobile eventually
The location information indoors such as end, article, equipment.The bluetooth location technology indoor environment location technology emerging as one kind, with
By means of the advantages that at low cost, precision is high, deployment facilitates, it is widely used.
In bluetooth location technology, at least one bluetooth module is deployed under indoor environment, bluetooth module is in starting bluetooth
After positioning function, it is broadcast periodically Bluetooth beacon notice, it is logical to receive Bluetooth beacon after entering the room environment for mobile terminal
It accuses, calculates signal strength indication when receiving Bluetooth beacon notice, and send location-server for signal strength indication, position
The signal strength indication that server is sent according to mobile terminal calculates the specific location of mobile terminal using location algorithm.
However, signal strength indication easily fluctuates, and causes to position due to being influenced by environment, bluetooth module hardware consumption etc.
Precision is lower.Therefore, the precision for how improving bluetooth positioning has become urgent problem to be solved in bluetooth location technology.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of bluetooth localization method, device, location-server and machine readable
Storage medium, to improve the precision of bluetooth positioning.Specific technical solution is as follows:
In a first aspect, the method is applied to location-server the embodiment of the invention provides a kind of bluetooth localization method,
The described method includes:
The detection information of each specified test point and the actual position information of pre-stored each specified test point are obtained,
The detection information includes the location information being calculated when each specified test point carries out position detection；
According to the actual position information of each specified test point and the location information being calculated, determine based on specified inspection
The distance between the actual position information of measuring point and the location information being calculated error；
According to the range error, signal intensity attenuation value is calculated；
Based on the signal intensity attenuation value, adjustment signal intensity a reference value, and utilize signal strength reference adjusted
Value carries out bluetooth positioning.
Second aspect, the embodiment of the invention provides a kind of bluetooth positioning device, described device is applied to location-server,
Described device includes:
Obtain module, for obtain each specified test point detection information and pre-stored each specified test point
Actual position information, the detection information include that the position being calculated when each specified test point carries out position detection is believed
Breath；
Computing module, for according to the actual position information of each specified test point and the location information being calculated,
Determine the distance between the actual position information based on specified test point and the location information being calculated error；According to it is described away from
From error, signal intensity attenuation value is calculated；
Locating module for being based on the signal intensity attenuation value, adjustment signal intensity a reference value, and utilizes adjusted
Signal strength reference value carries out bluetooth positioning.
The third aspect, the embodiment of the invention provides a kind of location-servers, including processor and machine readable storage to be situated between
Matter, wherein
The machine readable storage medium, for storing computer program；
The processor when for executing the computer program stored on the machine readable storage medium, realizes this
Bluetooth localization method provided by inventive embodiments first aspect.
Fourth aspect, the embodiment of the invention provides a kind of machine readable storage medium, the machine readable storage medium
It is inside stored with computer program, realizes that first aspect of the embodiment of the present invention is provided when the computer program is executed by processor
Bluetooth localization method.
A kind of bluetooth localization method, device, location-server and machine readable storage medium provided in an embodiment of the present invention,
Location-server obtains the detection information of each specified test point and the actual position information of pre-stored each specified test point, root
The calculating when specified test point carries out position detection for including in actual position information and detection information according to each specified test point
Obtained location information, the distance between the location information for determining the actual position information based on specified test point and being calculated
Error calculates signal intensity attenuation value according to range error, is based on signal intensity attenuation value, adjustment signal intensity a reference value, and
Bluetooth positioning is carried out using signal strength reference value adjusted.The fluctuation of signal strength indication will lead to the position of each specified test point
Set testing result appearance distance error, and the actual position information of each specified test point be it is known, then be based on position detection skill
The location information for each specified test point that art is calculated and the actual position information of each specified test point, can converse base
In the distance between the location information specifying the actual position information of test point and being calculated error, calculated according to range error
Signal intensity attenuation value out is adjusted signal strength reference value based on signal intensity attenuation value, is carrying out bluetooth positioning
When, it can use signal strength reference value adjusted and positioned, signal strength reference value adjusted can make up for it because of ring
Border, hardware consumption etc. influence generated error, to improve the precision of bluetooth positioning.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the flow diagram of the bluetooth localization method of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the bluetooth positioning device of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the location-server of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to improve the precision of bluetooth positioning, the embodiment of the invention provides a kind of bluetooth localization method, device, positioning clothes
Business device and machine readable storage medium.It is introduced in the following, being provided for the embodiments of the invention bluetooth localization method first.
Bluetooth localization method provided by the embodiment of the present invention can be applied to location-server, in location-server at least
Kernel processor chip including logical process function may be implemented realizes bluetooth localization method provided by the embodiment of the present invention
Mode can be at least one of the software, hardware circuit and logic circuit being set in location-server.
As shown in Figure 1, a kind of bluetooth localization method provided by the embodiment of the present invention, may include steps of.
S101 obtains the detection information of each specified test point and the actual bit confidence of pre-stored each specified test point
Breath, wherein detection information includes the location information being calculated when each specified test point carries out position detection.
Specified test point is preparatory under current positioning scene (such as the indoor scenes such as warehouse, power plant, airport hall)
The location point of the fixation of setting can record each specified test point after setting each specified test point on location-server
Actual position information (such as coordinate of each specified test point under world coordinate system, alternatively, the reference fixed based on some
The location informations such as orientation, the distance of point), the actual position information of each specified test point is fixed and invariable.
In actual scene, each specified test point can be marked, testing staff passes through when marching to each specified test point
Open position detection function, the operation of trigger position detection are selected in detection terminal.Detection terminal can be in each specified detection
The preassembled fixed terminal equipment (such as personal computer) of point, detection terminal can also be the mobile end that testing staff holds
End equipment (such as mobile phone, position sensing instrument etc.).
After bluetooth module starts bluetooth positioning function, start to broadcast Bluetooth beacon notice, testing staff is marching to respectively
Test point is specified, after the position detecting function for opening the detection terminal of each specified test point, can receive bluetooth module broadcast
Bluetooth beacon notice, calculate signal strength indication when receiving Bluetooth beacon notice, and signal strength indication is sent to it is fixed
Position server, location-server calculate the position of each specified test point using location algorithm according to the signal strength indication received
Confidence breath, specific calculating process are the prior art, and which is not described herein again.
S102 is determined according to the actual position information of each specified test point and the location information being calculated based on specified
The distance between the actual position information of test point and the location information being calculated error.
Due to being influenced by environment, hardware consumption etc., calculates and carry out signal strength indication and easily fluctuate, lead to each specified detection
It will appear range deviation between calculated location information and actual position information when the position detection of point, each specified test point
Actual position information be it is known when each specified test point is arranged, therefore, can be according to the physical location of each specified test point
Information and the location information being calculated determine that the actual position information based on specified test point is believed with the position being calculated
The distance between breath error.
In order to further increase the precision of bluetooth positioning, repeated multiple times position detection can be carried out in each specified test point,
Result based on repeated detection carries out between the actual position information based on specified test point and the location information being calculated
The calculating of range error, such calculated distance error are more accurate.It is calculated for the ease of whole, in each specified inspection
Can recorde the testing result of lower detection time and location information when measuring point carries out position detection simultaneously, and it is corresponding be recorded in it is pre-
If in tables of data.As shown in table 1, preset data table includes specified test point information, detection time, actual position information, calculating
Obtained location information.
1 preset data table of table
As shown in table 1, the detection time, actual position information, the position being calculated of each specified test point have been recorded
Information can extract carry out position detection each time respectively then when carrying out the calculating of range error from preset data table
When the obtained actual position information of the specified test point and location information being calculated, calculate separately and carry out position detection every time
Actual position information and the range error of location information that is calculated, then estimated by being averaging, calculating the modes such as variance
The distance between actual position information based on specified test point and the location information that is calculated error.
Optionally, S102 can be specifically achieved by the steps of:
The first step is calculated according to the actual position information of each specified test point and the location information being calculated in each finger
Regular inspection measuring point carries out the distance between the location information being calculated when position detection and actual position information deviation.
Assuming that carrying out multiple position detection in each specified test point, testing result as shown in Table 1 is obtained, then according to each finger
The actual position information of regular inspection measuring point and the location information being calculated can be calculated for each specified test point, each time
The distance between corresponding calculated location information and actual position information deviation after progress position detection, as formula (1) is
Specified the distance between the corresponding calculated location information of test point a and actual position information deviation, formula (2) are specified inspection
The distance between the corresponding calculated location information of measuring point b and actual position information deviation, formula (3) are specified test point c
The distance between corresponding calculated location information and actual position information deviation.
Wherein, TanFor t between when detectingan, when test point a being specified to carry out position detection, calculated location information and reality
The distance between border location information deviation.
Wherein, TbnFor t between when detectingbn, when test point b being specified to carry out position detection, calculated location information and reality
The distance between border location information deviation.
Wherein, TcnFor t between when detectingcn, when test point c being specified to carry out position detection, calculated location information and reality
The distance between border location information deviation.
Second step calculates range deviation average value according to each specified test point range deviation.
Each specified test point is being calculated when carrying out position detection after corresponding range deviation, can based on these away from
Range deviation average value is calculated from deviation, as shown in formula (4).
Third step calculates the variance of range deviation according to the range deviation and range deviation average value of each specified test point
Value.
After range deviation average value is calculated, calculated position when can embody whole detection due to variance
The range deviation degree of information and actual position information therefore can be according to the range deviation of each specified test point and apart from inclined
Poor average value calculates the variance yields of range deviation, as shown in formula (5).
4th step, determine variance yields be actual position information based on specified test point with the location information that is calculated it
Between range error.
After the variance yields of range deviation is calculated, variance yields is calculated as actual position information with when detecting
The distance between location information error, due to variance yields be calculated based on multiple specified test point repeated detections, and
It essentially, is since the fluctuation of signal strength causes the appearance of range error, range error, which is able to reflect out, to be believed
The fluctuation situation of number intensity.
S103 calculates signal intensity attenuation value according to range error.
After range error is calculated, since range error is able to reflect out the fluctuation situation of signal strength, specifically
, the quantized data of the fluctuation situation of signal strength is signal intensity attenuation value, therefore, is based on range error, can calculate
Signal intensity attenuation value.In bluetooth location technology, signal strength is primarily referred to as RSSI (Received Signal Strength
Indication, received signal strength indicator).
Specifically, calculating the mode of signal intensity attenuation value, mainly it is calculated by signal decay formula, signal declines
Subtract shown in formula such as formula (6).
Los=32.44+20lgS2+20lgf (6)
Los is signal intensity attenuation value, and unit dB, f are the working frequencies of bluetooth module, and unit is MHz.
S104 is based on signal intensity attenuation value, adjustment signal intensity a reference value, and utilizes signal strength reference adjusted
Value carries out bluetooth positioning.
After signal intensity attenuation value is calculated, can based on signal intensity attenuation value to signal strength reference value into
Row adjustment.Signal strength reference value after adjustment can make up for it because by the fluctuation that environment, hardware consumption etc. influence and occur,
Bluetooth positioning then is carried out using signal strength reference value adjusted, the precision of bluetooth positioning can be improved.
Optionally, it is based on signal intensity attenuation value in S104, the step of adjustment signal intensity a reference value, can specifically pass through
Following steps are realized:
Obtain current signal strength a reference value；The sum of current signal strength a reference value and signal intensity attenuation value are calculated, is made
For updated signal strength reference value；Current signal strength a reference value is adjusted to updated signal strength reference value.
Wherein, it can be RSSI pad value that signal strength reference value, which can be RSSI a reference value, signal intensity attenuation value,.?
After RSSI pad value RSSI2 is calculated, current RSSI a reference value RSSI1 is obtained, calculates the sum of current RSSI1 and RSSI2, is made
For updated RSSI a reference value RSSI3, i.e. RSSI3=RSSI1+RSSI2, RSSI a reference value can be replaced with into RSSI3.Afterwards
Continue when carrying out bluetooth location Calculation, then can use RSSI3 and carry out bluetooth positioning.
After range error is calculated, current material calculation can also be taken out, is added with current material calculation
Range error obtains new step-length, and the new step-length being calculated is notified to user, carries out step-length adjustment by user, adjustment is practical
Moving step sizes be new step-length.
Using the embodiment of the present invention, obtain each specified test point detection information and pre-stored each specified test point
Actual position information is carried out according to include in the actual position information and detection information of each specified test point in specified test point
The location information being calculated when position detection, the position for determining the actual position information based on specified test point and being calculated
The distance between information error calculates signal intensity attenuation value according to range error, is based on signal intensity attenuation value, adjustment letter
Number intensity a reference value, and signal strength reference value adjusted is utilized to carry out bluetooth positioning.The fluctuation of signal strength indication will lead to
The position detection result appearance distance error of each specified test point, and the actual position information of each specified test point be it is known,
The location information of each specified test point then calculated based on location detecting technology and the physical location of each specified test point
Information can converse the actual position information based on specified test point and miss with the distance between the location information being calculated
Difference calculates signal intensity attenuation value according to range error, is carried out based on signal intensity attenuation value to signal strength reference value
Adjustment, when carrying out bluetooth positioning, can use signal strength reference value adjusted and is positioned, signal strength adjusted
A reference value can make up for it because of error caused by the influence such as environment, hardware consumption, to improve the precision of bluetooth positioning.
Corresponding to above method embodiment, the embodiment of the invention provides a kind of bluetooth positioning devices, as shown in Fig. 2, should
Bluetooth positioning device is applied to location-server, may include:
Module 210 is obtained, for obtaining the detection information and pre-stored each specified detection of each specified test point
The actual position information of point, the detection information include the position being calculated when each specified test point carries out position detection
Confidence breath；
Computing module 220, for being believed according to the actual position information of each specified test point and the position being calculated
Breath determines the distance between the actual position information based on specified test point and the location information being calculated error；According to institute
Range error is stated, signal intensity attenuation value is calculated；
Locating module 230 for being based on the signal intensity attenuation value, adjustment signal intensity a reference value, and utilizes adjustment
Signal strength reference value afterwards carries out bluetooth positioning.
Optionally, the computing module 220 for the actual position information according to each specified test point and
The location information being calculated determines between the actual position information based on specified test point and the location information being calculated
When range error, specifically it can be used for:
According to the actual position information of each specified test point and the location information being calculated, calculate in each finger
Regular inspection measuring point carries out the distance between the location information being calculated when position detection and actual position information deviation；
According to the range deviation of each specified test point, range deviation average value is calculated；
According to the range deviation and the range deviation average value of each specified test point, the variance of range deviation is calculated
Value；
Determine the variance yields between the actual position information based on specified test point and the location information being calculated
Range error.
Optionally, the locating module 230 is being based on the signal intensity attenuation value, adjustment signal rheobase for described
When quasi- value, specifically it can be used for:
Obtain current signal strength a reference value；
The sum of the current signal strength a reference value and the signal intensity attenuation value are calculated, it is strong as updated signal
Spend a reference value；
The current signal strength a reference value is adjusted to the updated signal strength reference value.
Using the embodiment of the present invention, obtain each specified test point detection information and pre-stored each specified test point
Actual position information is carried out according to include in the actual position information and detection information of each specified test point in specified test point
The location information being calculated when position detection, the position for determining the actual position information based on specified test point and being calculated
The distance between information error calculates signal intensity attenuation value according to range error, is based on signal intensity attenuation value, adjustment letter
Number intensity a reference value, and signal strength reference value adjusted is utilized to carry out bluetooth positioning.The fluctuation of signal strength indication will lead to
The position detection result appearance distance error of each specified test point, and the actual position information of each specified test point be it is known,
The location information of each specified test point then calculated based on location detecting technology and the physical location of each specified test point
Information can converse the actual position information based on specified test point and miss with the distance between the location information being calculated
Difference calculates signal intensity attenuation value according to range error, is carried out based on signal intensity attenuation value to signal strength reference value
Adjustment, when carrying out bluetooth positioning, can use signal strength reference value adjusted and is positioned, signal strength adjusted
A reference value can make up for it because of error caused by the influence such as environment, hardware consumption, to improve the precision of bluetooth positioning.
The embodiment of the invention also provides a kind of location-servers, as shown in figure 3, including processor 301 and machine readable
Storage medium 302, wherein
The machine readable storage medium 302, for storing computer program；
The processor 301, when for executing the computer program stored on the machine readable storage medium 302,
Realize all steps of bluetooth localization method provided by the embodiment of the present invention.
Above-mentioned machine readable storage medium may include RAM (Random Access Memory, random access memory),
It also may include NVM (Non-volatile Memory, nonvolatile memory), for example, at least a magnetic disk storage.It is optional
, machine readable storage medium can also be that at least one is located remotely from the storage device of above-mentioned processor.
Above-mentioned processor can be general processor, including CPU (Central Processing Unit, central processing
Device), NP (Network Processor, network processing unit) etc.；Can also be DSP (Digital Signal Processing,
Digital signal processor), ASIC (Application Specific Integrated Circuit, specific integrated circuit),
FPGA (Field-Programmable Gate Array, field programmable gate array) or other programmable logic device are divided
Vertical door or transistor logic, discrete hardware components.
In the present embodiment, above-mentioned processor passes through the computer program stored in read machine readable storage medium storing program for executing, and leads to
Cross and run the computer program, can be realized: location-server obtains the detection information of each specified test point and pre-stored
The actual position information of each specified test point, according in the actual position information and detection information of each specified test point include
Specified test point carries out the location information being calculated when position detection, determine actual position information based on specified test point with
The distance between location information being calculated error calculates signal intensity attenuation value according to range error, is based on signal strength
Pad value, adjustment signal intensity a reference value, and bluetooth positioning is carried out using signal strength reference value adjusted.Signal strength indication
Fluctuation will lead to the position detection result appearance distance error of each specified test point, and the actual bit confidence of each specified test point
Breath is known, the then location information and each specified test point of each specified test point calculated based on location detecting technology
Actual position information, can converse between the actual position information based on specified test point and the location information being calculated
Range error, signal intensity attenuation value is calculated according to range error, based on signal intensity attenuation value to signal strength base
Quasi- value is adjusted, and when carrying out bluetooth positioning, be can use signal strength reference value adjusted and is positioned, adjusted
Signal strength reference value can make up for it because of error caused by the influence such as environment, hardware consumption, to improve bluetooth positioning
Precision.
Corresponding to bluetooth localization method provided by above-described embodiment, machine readable deposited the embodiment of the invention provides a kind of
Storage media is stored with computer program in the machine readable storage medium, real when the computer program is executed by processor
All steps of bluetooth localization method provided by the existing embodiment of the present invention.
In the present embodiment, machine readable storage medium is stored with executes bluetooth provided by the embodiment of the present invention at runtime
The computer program of localization method, therefore can be realized: location-server obtains the detection information and in advance of each specified test point
The actual position information of each specified test point of storage, is wrapped according in the actual position information and detection information of each specified test point
The location information being calculated when specified test point carries out position detection included, determines the physical location based on specified test point
The distance between information and the location information being calculated error calculate signal intensity attenuation value according to range error, based on letter
Number strength retrogression's value, adjustment signal intensity a reference value, and signal strength reference value adjusted is utilized to carry out bluetooth positioning.Signal
The fluctuation of intensity value will lead to the position detection result appearance distance error of each specified test point, and the reality of each specified test point
Location information is known, the then location information of each specified test point calculated based on location detecting technology and each specified
The actual position information of test point can converse the actual position information based on specified test point and believe with the position being calculated
The distance between breath error, calculates signal intensity attenuation value according to range error, based on signal intensity attenuation value to signal
Intensity a reference value is adjusted, and when carrying out bluetooth positioning, be can use signal strength reference value adjusted and is positioned, and is adjusted
Signal strength reference value after whole can make up for it because of error caused by the influence such as environment, hardware consumption, to improve bluetooth
The precision of positioning.
For location-server and machine-storage medium embodiment, basic phase of method content as involved in it
It is similar to embodiment of the method above-mentioned, so being described relatively simple, the relevent part can refer to the partial explaination of embodiments of method.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Each embodiment in this specification is all made of relevant mode and describes, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device,
For location-server and machine-storage medium embodiment, since it is substantially similar to the method embodiment, so the ratio of description
Relatively simple, the relevent part can refer to the partial explaination of embodiments of method.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (8)
1. a kind of bluetooth localization method, which is characterized in that the method is applied to location-server, which comprises
The detection information of each specified test point and the actual position information of pre-stored each specified test point are obtained, it is described
Detection information includes the location information being calculated when each specified test point carries out position detection；
According to the actual position information of each specified test point and the location information being calculated, determine based on specified test point
The distance between actual position information and the location information that is calculated error；
According to the range error, signal intensity attenuation value is calculated；
Based on the signal intensity attenuation value, adjustment signal intensity a reference value, and using signal strength reference value adjusted into
The positioning of row bluetooth.
2. the method according to claim 1, wherein the actual bit confidence according to each specified test point
The location information for ceasing and being calculated, determine actual position information based on specified test point and the location information that is calculated it
Between range error, comprising:
According to the actual position information of each specified test point and the location information being calculated, calculate in each specified inspection
Measuring point carries out the distance between the location information being calculated when position detection and actual position information deviation；
According to the range deviation of each specified test point, range deviation average value is calculated；
According to the range deviation and the range deviation average value of each specified test point, the variance yields of range deviation is calculated；
Determine the variance yields be between actual position information based on specified test point and the location information being calculated away from
From error.
3. the method according to claim 1, wherein described be based on the signal intensity attenuation value, adjustment signal
Intensity a reference value, comprising:
Obtain current signal strength a reference value；
The sum of the current signal strength a reference value and the signal intensity attenuation value are calculated, as updated signal strength base
Quasi- value；
The current signal strength a reference value is adjusted to the updated signal strength reference value.
4. a kind of bluetooth positioning device, which is characterized in that described device is applied to location-server, and described device includes:
Module is obtained, for obtaining the detection information of each specified test point and the reality of pre-stored each specified test point
Location information, the detection information include the location information being calculated when each specified test point carries out position detection；
Computing module, for determining according to the actual position information of each specified test point and the location information being calculated
The distance between actual position information based on specified test point and the location information that is calculated error；Accidentally according to the distance
Difference calculates signal intensity attenuation value；
Locating module for being based on the signal intensity attenuation value, adjustment signal intensity a reference value, and utilizes signal adjusted
Intensity a reference value carries out bluetooth positioning.
5. device according to claim 4, which is characterized in that the computing module for described according to described each specified
The actual position information of test point and the location information being calculated, determine by the actual position information of specified test point and based on
When the distance between obtained location information error, it is specifically used for:
According to the actual position information of each specified test point and the location information being calculated, calculate in each specified inspection
Measuring point carries out the distance between the location information being calculated when position detection and actual position information deviation；
According to the range deviation of each specified test point, range deviation average value is calculated；
According to the range deviation and the range deviation average value of each specified test point, the variance yields of range deviation is calculated；
Determine the variance yields be between actual position information based on specified test point and the location information being calculated away from
From error.
6. device according to claim 4, which is characterized in that the locating module is for described strong based on the signal
Pad value is spent, when adjustment signal intensity a reference value, is specifically used for:
Obtain current signal strength a reference value；
The sum of the current signal strength a reference value and the signal intensity attenuation value are calculated, as updated signal strength base
Quasi- value；
The current signal strength a reference value is adjusted to the updated signal strength reference value.
7. a kind of location-server, which is characterized in that including processor and machine readable storage medium, wherein
The machine readable storage medium, for storing computer program；
The processor when for executing the computer program stored on the machine readable storage medium, realizes that right is wanted
Seek the described in any item methods of 1-3.
8. a kind of machine readable storage medium, which is characterized in that it is stored with computer program in the machine readable storage medium,
Claim 1-3 described in any item methods are realized when the computer program is executed by processor.
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