CN106161809A - A kind of emergency communication terminal positioning subsystem and localization method - Google Patents
A kind of emergency communication terminal positioning subsystem and localization method Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/42348—Location-based services which utilize the location information of a target
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
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Abstract
The invention discloses a kind of emergency communication terminal alignment system and localization method, relate to landline telephone and the localization method of mobile phone, the foundation of emergency communication alignment system platform, belong to communication terminal location related-art technology.It is characterized in that: emergency communication alignment system comprises fixed line communication locating platform and mobile communication locating platform, and wherein the positioning step of fixed phone emergent communication includes: 1) set up up-to-date fixed line data base, position by searching element engine；2) big data retrieval mode is utilized to position；3) positioned by fixed line number.The positioning step of mobile phone emergency communication includes: 1) substantially positioned by the main Serving cell of mobile terminal；2) positioned by the GPS information of mobile terminal；3) position is determined by the TA value (Timing Advance) of mobile terminal.Finally the address information of emergency communication terminal is demonstrated in the map of emergent alignment system platform.
Description
Technical field
The invention discloses the foundation of a kind of emergency communication terminal positioning subsystem and corresponding localization method, relate to fixing
Phone and the localization method of mobile phone, the Establishing process of emergency communication positioning subsystem, belong to communication and crisis phone only positions
Related-art technology.
Background technology
When producing emergency communication (such as 110,122,119 etc.), tend to occur emergency needs and process and rescue, now
Alarm center and emergency break down lorry if the geographical position grasping alarm terminal in time just can be disposed faster, just energy and
Time save life and property.For this kind of demand, it is necessary to set up a set of emergency communication positioning subsystem.
Establishing a kind of emergency communication terminal positioning subsystem for the demand present invention, system includes passing through the present invention
Method, algorithm positions to fixing crisis phone only with to moving emergency phone, emergency communication positioning subsystem is connect by CRM
Mouth is connected with fixed line communication system, emergency communication positioning subsystem is connected with big data platform by TCP/IP interface, it is logical to meet an urgent need
Positioning subsystem is connected with mobile communication system letter by A interface, emergency communication positioning subsystem is used by current existing network
Mobile communication interface (2G, 3G, 4G) is connected with emergency management and rescue onboard system, finally the address information of emergency communication terminal is being answered
The map of anxious alignment system platform and emergency management and rescue onboard system demonstrates.
Described localization method feature includes: 1. landline telephone localization method: by fixed line telephone number, in conjunction with up-to-date fixed line
The method that address information database, big data platform, fixed line number attribution are analyzed；2. position finding method for mobile telephone: by moving
The CellID of the main Serving cell of dynamic terminal, the GPS information of acquisition mobile communication terminal, the TA value (Time of acquisition mobile terminal
Advance Timing Advance) and combine accurate latitude and longitude of base station data base by the algorithm one in patent of the present invention: pass through
The TA value of dominant base Serving cell and primary and secondary strong service signal base station location algorithm determine the position of emergency terminal；Algorithm two: logical
Cross with dominant base, secondary strong basis station, secondary strong basis station TA value conversion a length of radius draw three circles, with three circle intersecting areas, three
Individual intersecting point coordinate, three intersecting point coordinate degree of learning from else's experience respectively and latitude median method determine the position of emergency terminal.
In existing technology, the method to terminal positioning has a lot, if Mobile Location Technology is cell ID (Cell
ID) location technology, cellphone GPS (or A-GPS) location technology, WIFI is utilized to carry out location technology, Cell ID location technology
There is problems of low precision, its low precision can be from hundreds of rice to several kms；GPS location technology is limited to mobile terminal and needs band
GPS function, cause mobile phone cannot obtain more than at least 3 gps satellite signals, mobile core networks cannot obtaining because of factors such as environment
Cellphone GPS information etc.；WIFI location technology is limited to WIFI network and covers impact, the most only the fraction in portion centers city
Region possesses WIFI and covers.
Two algorithms about mobile phone location in patent of the present invention: algorithm one: by the TA value of dominant base Serving cell
Service signal base station location algorithm strong with primary and secondary determines the position of emergency terminal；Algorithm two: by with dominant base, secondary strong basis station,
Secondary strong basis station TA value determines the position of emergency terminal, can solve that above-mentioned Cell ID location technology precision is the highest, mobile phone not
There is the mobile terminal orientation problems such as GPS cannot position, WIFI covering is not enough, be that existing mobile terminal locating method is had
Benefit is supplemented.
Summary of the invention
Present disclosure is to design a kind of emergency communication terminal positioning subsystem, comprises fixing crisis phone only location flat
Platform with to moving emergency phone locating platform, be connected with fixed line communication system by CRM interface, by TCP/IP interface and big number
The mobile communication interface that is connected according to platform, is connected with mobile communication system by A interface, used by current existing network (2G, 3G,
4G) it is connected with emergency management and rescue onboard system, finally by the address information of emergency communication terminal on the ground of emergent alignment system platform
Demonstrating in figure, emergency communication terminal positioning subsystem structure is as shown in Figure 1.
Emergency communication terminal positioning subsystem comprises fixed line communication locating platform and mobile communication locating platform, is respectively directed to
The location that the location of fixed phone emergent communication communicates with moving emergency, sets up two kinds of communication terminal alignment systems by introducing respectively below
Method.
One. fixed line communication terminal localization method
When user carries out emergency communication by fixed line communication system, emergency service platform can receive the fixed line number of user, permissible
Number determines the position of user accordingly, and localization method is as follows.
1) set up comprise all up-to-date fixed line address information database (fixed line carrier have most of fixed line address believe
Breath, emergency service platform obtains fixed line address information by fixed line carrier and upgrades in time) landline telephone locating platform.
2) search element engine by what fixed line phone locating platform carried, find the specific address carrying out emergency communication fixed line,
Can be achieved with this fixed line is positioned.
3) when the fixed line information of calling emergency communication is not in fixed line data base, big data retrieval mode is utilized to search out
The specific address of fixed line, concrete grammar: by putting down with the communication interface of outer net (Internet etc.) (TCP/IP etc.) and big data
Platform (information containing fixed line and address information such as social security data base, mobile operator database) establishes the link, and passes through
Outer net search engine, finds the specific address carrying out emergency communication fixed line, can be achieved with positioning this fixed line.
4) when the fixed line information of calling emergency communication is not in fixed line data base, it is the most fixed to be carried out by fixed line number
Position, current China current fixed telephone number division rule is that classification divides, and the 1st grade is country total junction center, the main world
Interface office location, i.e. Beijing, capital, use an area code, it is simply that 1；2nd grade is municipality directly under the Central Government and use Liang Wei district of Regional Center
Number；3rd level is switching centre of province and local exchange center, uses three area codes, and the first and two, regional switching center city
The last position of area code is corresponding；4th switching centre of Ji Wei county, uses four area codes；5 grades of switching centres are local exchange end office (EO), and one
As be local telephone network end office (EO).Method is to find city, emergency communication fixed line place, county, township step by step by fixed line division rule, then presses office number
Finding ownership place, location can be as accurate as villages and small towns.
Two. mobile communication terminal positioning method
When user carries out emergency communication by mobile communication system, emergency communication positioning subsystem can be mobile whole by obtaining
The GPS information of end, place cell information, TA value determine the position of user, and localization method is as follows.
1) initially set up one and comprise the accurate of the accurate latitude and longitude information in all base stations, TA value (Timing Advance) and distance
The mobile terminal locating platform of conversion table.
The acquisition methods of latitude and longitude of base station:
Staff, to antenna for base station position, determines the accurate longitude and latitude in base station by GPS, movable signal testing mobile phone,
Performing record, all latitude and longitude of base station data summarization form latitude and longitude of base station data base；
CDMA(CDMA mobile telecommunication), the synchronization code multi-address division system of TD-SCDMA(Time division duplex) the two system
Base station carries GPS, can pass through BSC(base station controller), RNC(radio network controller) computer terminal obtain.
Set up the accurate conversion table of TA value (Timing Advance) and distance:
Staff utilizes the instruments such as testing mobile phone, diastimeter, near base station by distance respectively reconnaissance test from base station away from
TA value in, testing mobile phone, after carrying out magnanimity test, can set up relation data between TA value (Timing Advance) and distance
Storehouse, makes the accurate conversion table of TA value (Timing Advance) and distance by weighted average, normal distribution method.
2) the main Serving cell CellID information obtaining mobile terminal substantially determines mobile terminal locations
When mobile terminal carries out urgent call (110,199,122 etc.), emergency communication positioning subsystem can be in communication channel
The CellID information at middle extraction mobile terminal place, and by the latitude and longitude information of CellID, coverage information in emergency service platform
Substantially orienting terminal position, the method advantage is that location is rapid, and shortcoming is that error is relatively big up to hundreds of rice, upper km,
CellID location mobile terminal locations as shown in Figure 2, after the CellID information obtaining mobile terminal place, can pass through following
Method continues location.
3) GPS information obtaining mobile terminal determines mobile terminal locations
The method is just for the mobile terminal with GPS.Concrete grammar is: when terminal carries out urgent call (110,199,122
Deng), emergency communication positioning subsystem is obtaining the CellID information at terminal place, and after substantially orienting terminal position,
From Traffic Channel, send GPS open command by network side (MSC, CS, MME etc.), initiate to extract emergency communication terminal GPS warp
The User's Interface location of the SUPL(Secure User Plane Location safety of latitude information) way such as flow process, emergent
Communication locating platform can obtain the current location of emergency communication terminal.
As GPS does not opens, and need certain time from being opened into more than 3 gps satellites of locking, emergency communication locating platform
Can again initiate to extract emergency communication terminal GPS latitude and longitude information after waiting the N second (N: terminal averagely locks the star time)
SUPL flow process, until obtain the positional information of emergency communication terminal within the 2N second.
Within the method advantage is the least several meters of error, shortcoming is that the emergency communication terminal locking GPS less than more than 3 defends
Star, part emergency communication terminal are longer etc. without GPS function, positioning time.Carry out location by the GPS information of mobile terminal to run into
Problem as shown in Figure 3.
As emergency communication terminal does not has GPS maybe cannot lock more than 3 gps satellites, i.e. emergency communication after entering the 2N second
Locating platform still cannot extract the GPS information of emergency communication terminal, and network side can be at channels such as access grant channels (AGCH)
Middle acquisition TA value (Timing Advance), and position by the following method.
1) position is determined by the TA value (Timing Advance) of mobile terminal
Requirement mobile communication terminal owing to the CELL ID method precision of said method 1 is low, in method 2 must possess GPS function etc.
Limit, develop and a kind of can improve mobile phone positioning precision again without carrying out the change of mobile phone hardware and software, do not increase
The mobile communication terminal positioning method of mobile phone cost is the task that this area is currently badly in need of.
In order to achieve the above object, the present invention by the following technical solutions: a kind of mobile communication terminal positioning method, including
Following steps.
Step 1. is when mobile terminal initiates Location Request, and mobile terminal locating platform can obtain in mobile terminal message
The TA value (Timing Advance) of main Serving cell；
The acquisition of TA value (Timing Advance):
The purpose of TA value (Timing Advance) is to compensate for wave transmissions and postpones.Mobile phone when being initially accessed, base station or mobile phone
Do not know that the distance of oneself is left in opposite end.Mobile phone, when RACH (RACH) upper initiation access request, decodes in base station
The propagation delay time (be aware of mobile phone and leave the distance of oneself) of this signal, base station has been calculated during the random access request of mobile phone
Can tell in the way of TA value on access grant channel (AGCH) subsequently mobile phone its leave the distance of oneself, it is desirable to mobile phone with
After Traffic Channel (TCH) signal launch time shift to an earlier date the time value representated by TA.
Mobile terminal locating platform is by the communication A with each mobile communication system (GSM, CDMA, TD-SCDMA, WCDMA)
Interface, sending extraction needs the TA of positioning service terminal to instruct, and each mobile communication system (GSM, CDMA, TD-SCDMA, WCDMA) can
With in respective OMC(operation maintenance center), MSC(mobile switching centre), BSC(base station controller) in trace into and need to position clothes
The main Serving cell of business terminal is sent the channel comprising TA, and extracts TA value and issue mobile terminal locating platform.
Step 2. algorithm one: true by TA value and the primary and secondary strong service signal base station location algorithm of dominant base Serving cell
Determine the position of emergency terminal.
After the TA value being obtained main serving base station cell by above-mentioned steps 1, according to the base station position information set up, TA
Value (Timing Advance) and the corresponding relation of distance, with main serving BS A as round dot, length R of main serving BS TA value conversion
Circle is drawn for radius.
When mobile terminal initiates emergency call, after mobile terminal and base station call have been set up, at Handover
Command channel includes neighboring BS information, strong, the most secondary strong by signal intensity ... Serving cell, can find secondary strong
The base station that base station in service sector B(of signal is different from main Serving cell), obtain secondary strong according to the base station position information set up
Base station B location coordinate.
According to the base station position information set up, find out respectively main base station in service sector A longitude and latitude (a1, b1), secondary by force
The longitude and latitude (a2, b2) of base station in service sector B, calculates distance D between two base stations by below equation.
D=[(a1-a2)2+(b1-b2)2]
Due to aforementioned length R having obtained the conversion of main serving BS TA value, two base stations can be calculated by below equation straight
The latitude and longitude coordinates value of the some E being R away from main serving BS distance between line is connected.
(X-a1)²+(Y-b1)²=R²
(X-a2)²+(Y-b2)²=(D-R)²
Show that the intersection point E coordinate of two circles is respectively (X, Y), because intersection point E is positioned at dominant base by solving of aforesaid equation
With on the straight line line at secondary strong basis station, therefore the coordinate of intersection point E obtained of aforesaid equation should be for a bit, as shown in Figure 4.
Intersection point E(X, Y) can be approximately considered be the position of moving emergency calling terminal.
Step 3. algorithm two: by drawing three with dominant base, secondary strong basis station, a length of radius of secondary strong basis station TA value conversion
Individual circle, determines emergent with three circle intersecting areas, three intersecting point coordinates, three intersecting point coordinate degree of learning from else's experience respectively and latitude median method
The position of terminal.
The advantage of the position of the moving emergency calling terminal that above-mentioned algorithm one determines is, algorithm letter fast to mobile terminal location
Can be positioned by this algorithm, without carrying out forcing handover operation to shifting as long as single mobile terminal has been set up with base station call
Dynamic communication network is without impact ..., shortcoming is that positioning precision can be affected decline by base station signal, primary and secondary base station location precision etc.；As
Fruit is in line with emergency call priority principle, and mobile system can allow to use moving emergency calling terminal to force switching to obtain shifting
Dynamic emergency call terminal location, it is possible to take following algorithm to obtain moving emergency calling terminal position.
A. the method for this algorithm is that terminal positioning platform switches to time strong basis station cell information to terminal initiation pressure, obtains
The TA value (Timing Advance) of time strong serving base station cell at terminal message center；
B. forcing to switch to time purpose of strong base station cell is the main Serving cell of terminal to be changed to time strong base station cell, now
Secondary strong base station cell and terminal room establish the channels such as Traffic Channel (TCH), include TA value, and mobile terminal locating platform just may be used
TA value is extracted with the communication interface by each mobile communication system (GSM, CDMA, TD-SCDMA, WCDMA).
Step b obtains the TA value (time advance of time strong, secondary multiple base station serving cell such as by force strong, secondary the most repeatedly
Amount)；
D. after locating platform obtains more than 3 the TA values (Timing Advance) of at least A, B and C, according to the position, base station set up
Confidence breath, TA value (Timing Advance) and the corresponding relation of distance, by with dominant base, secondary strong basis station, secondary strong basis station TA value
The a length of radius of conversion draws three circles, and these three circle intersecting area substantially can determine that the position of emergency terminal.Such as accompanying drawing 5 institute
Show.
E. obtain three circle overlapping regions three intersecting point coordinates:
Obtaining the joining of two circles the most respectively, method is as follows:
The coordinate of known base station A is (a1, b1), and the length value being 1. worth conversion with the TA of base station A to moving emergency communication terminal is
Radius R1；The coordinate of base station B is (a2, b2), is 2. worth the length value of conversion as radius with base station B to the TA of mobile emergence terminal
R2；
Row binary quadratic equation group accordingly
(X-a1)²+(Y-b1)²=R1²
(X-a2)²+(Y-b2)²=R2²
Show that the intersecting point coordinate of two circles is respectively (X1, Y1) by solving of aforesaid equation, (X2, Y2)
In like manner can calculate remaining two circle joining coordinate (X3, Y3), (X4, Y4) and (X5, Y5), (X6, Y6) respectively.
Take respectively above-mentioned two circle intersect two intersecting point coordinates in the 3rd intersection point that base station coordinates is near (X1, Y1),
(X3, Y3), (X5, Y5)；These three intersecting point coordinate is the coordinate of three intersection points of three circle overlapping regions, intersecting point coordinate such as accompanying drawing
Shown in 6.
F. the position of emergency terminal is determined by three intersecting point coordinate degree of learning from else's experience respectively and latitude median method
Taking three the circle longitudes of three intersecting point coordinates of overlapping region, latitudes respectively is one group, in longitude group fetch bit in three it
Between middle longitude as the longitude of moving emergency communication terminal, in like manner, the fetch bit middle latitude between three in latitude group
Spending the latitude as moving emergency communication terminal, reduction formula is as follows:
Moving emergency communication terminal longitude X=X1+X3+X5-MAX(X1, X3, X5)+MAX(-X1 ,-X3 ,-X5)
Moving emergency communication terminal longitude Y=Y1+Y3+Y5-MAX(Y1, X3, X5)+MAX(-X1 ,-X3 ,-X5)
Derived the longitude and latitude (X, Y) of moving emergency communication terminal by algorithm above, very fast, accurate can determine its position,
As shown in Figure 7.
G. three circles are intersected why method produces overlapping covered being further elucidated with
Why the method can produce overlapping region rather than produce three disjoint circles as shown in Figure 8？
Reason is as follows:
The base station signal that general mobile terminal receives will through diffraction, reflect, the mode such as scattering arrives mobile terminal, by reality
The base station covering radius that TA is converted into is greater than the actual covering radius in base station.
Even if mobile terminal and Base Transmitter antenna are in visual range, (i.e. base station signal arrives mobile terminal and is in straight line
Propagate situation), due to antenna and terminal not in same level, the base station covering radius of TA conversion now is still above base station
With the planar cover radius that terminal is in same level.
So as shown in Figure 9, generally, the signal that antenna for base station sends arrives the actual TA value of mobile terminal and changes
The base station covering radius TA calculated, is in conplane planar cover radius R more than ideally base station and mobile terminal.
If employing numerical map, eliminate the difference in height impact of antenna for base station and mobile terminal, then above three base station
Covering overlapping region will tend to a bit, it will be the least for i.e. covering overlapping region, and positioning precision can be higher, as shown in Figure 10.
This algorithm includes the range information acquisition mobile phone position substantially first passing through mobile phone with the first two base station (1,2), then
It is accurately positioned mobile phone location, if site error (there may be the feelings such as repeater relatively greatly by the distance of mobile phone and the 3rd base station
Condition), can be from 1,2,3,4,5....In choose 3 combination in any by above-mentioned algorithm until error is minimum, finally minimum with error
Result is final result output.Therefore user is without changing the mobile phone of oneself, and operator is not required to carry out big to equipment equally
Software and hardware is changed, it is possible to realize mobile phone accurate positioning function.
Emergency communication terminal locating platform is to dialing the positioning flow of crisis phone only as shown in Figure 11.
Emergent vehicular map demonstrates the position of accident:
When emergent alignment system is after the accident address information obtained, by accident address information through emergent location
The radio communication emission system of system platform, the mobile communication interface (2G, 3G, 4G) used by current existing network is sent to meet an urgent need
The wireless communication receiver system of onboard system, is converted accident address information by emergent vehicular map crossover tool afterwards
Becoming map position information, and show in emergent vehicular map, flow chart is as shown in Figure 12.
Accompanying drawing explanation
Fig. 1. emergency communication terminal positioning subsystem structural representation
Fig. 2 .CellID method obtains mobile terminal locations schematic diagram
The problem schematic diagram that Fig. 3 .GPS legal position mobile terminal runs into
Fig. 4. the position of mobile terminal is determined by the TA value of dominant base Serving cell and primary and secondary strong basis station location
Fig. 5. three circles intersect the determination location area schematic diagram of overlapping region
Fig. 6. three circles intersect three joining coordinate schematic diagrams of overlapping region
Fig. 7. the longitude and latitude intermediate value taking three intersecting point coordinates determines mobile terminal locations schematic diagram
Fig. 8. the schematic diagram of three non-intersect circles
The radius of Fig. 9 .TA conversion > base station is to the linear radial schematic diagram of terminal
Figure 10. use numerical map location mobile terminal schematic diagram
Figure 11. the emergency communication terminal locating platform positioning flow figure to dialing crisis phone only
Figure 12. emergency car loading system accepts emergency terminal positional information and shows on vehicular map
Detailed description of the invention
Below in conjunction with embodiment in detail the present invention is described in detail, a kind of emergency communication terminal positioning subsystem and localization method,
Comprise the following steps:
A. an emergency communication terminal locator comprising landline telephone locating platform and mobile phone locating platform is initially set up
System, this system can be connected with fixed line communication system by CRM interface, is connected with big data platform by TCP/IP interface, lead to
Cross A interface be connected with mobile communication system, the mobile communication interface (2G, 3G, 4G) that used by current existing network and emergency management and rescue
Onboard system is connected；
B. setting up landline telephone locating platform in emergency communication terminal positioning subsystem, this platform should comprise all up-to-date fixed lines
(fixed line carrier has the address information of most of fixed line, and emergency service platform passes through fixed line carrier for the data base of address information
Obtain fixed line address information and upgrade in time)；Set up one and comprise the accurate latitude and longitude information in all base stations, TA value (time advance
Amount) and the mobile terminal locating platform of accurate conversion table of distance；
If c. emergency communication terminal is landline telephone, searches element engine by what fixed line phone locating platform carried, find and carry out
The specific address of emergency communication fixed line, can be achieved with positioning this fixed line；
D., when the fixed line information of calling emergency communication is not in fixed line data base, big data retrieval mode is utilized to search out fixed line
Specific address；
E., when the fixed line information of calling emergency communication is not in fixed line data base, substantially positioned by fixed line number；
If f. emergency communication terminal is mobile phone, can be by obtaining the main Serving cell CellID information of mobile terminal substantially
Determine mobile terminal locations；
If g. moving emergency communication terminal has GPS function, can be determined mobile whole by the GPS information obtaining mobile terminal
End position；
H. not there is GPS function if there is moving emergency communication terminal, cause because of factors such as environment mobile phone cannot obtain at least 3
Gps satellite signal more than, mobile core network cannot obtain the problems such as cellphone GPS information, can pass through dominant base Serving cell
TA value and primary and secondary strong service signal base station location algorithm determine the position of emergency terminal；
I. by drawing three circles with dominant base, secondary strong basis station, a length of radius of secondary strong basis station TA value conversion, with three circle phases
Region, three intersecting point coordinates, three intersecting point coordinate degree of learning from else's experience respectively and latitude median method is handed over to determine the position of emergency terminal；
J. the address information of emergency communication terminal is sent to emergent logical by landline telephone locating platform or mobile phone locating platform
Letter terminal positioning subsystem, after emergency service platform and emergency communication terminal are examined, determines the particular location of accident, and
Show on the map system of emergency communication locating platform；
K. when emergent alignment system is after the accident address information obtained, by accident address information through emergent
The radio communication emission system of alignment system platform, the mobile communication interface (2G, 3G, 4G) used by current existing network is sent to
The wireless communication receiver system of emergency car loading system, afterwards by emergent vehicular map crossover tool by accident address information
Change into map position information, and show in emergent vehicular map.
A kind of emergency communication terminal subsystem of the present invention has the function to emergency communication terminal location positioning, by right
The analysis of emergency communication terminal calling, classification, respectively through landline telephone locating platform and mobile phone locating platform, in conjunction with this
Bright landline telephone localization method, position finding method for mobile telephone, determine the particular location of emergency terminal, for emergency medical center
There is provided more accurately, the positional information of emergency communication terminal timely, when the life and property for rescuing the people has won valuable
Between.
The present invention is directed to not possess the mobile terminal of GPS function, cause because of factors such as environment mobile phone cannot obtain at least 3
Above gps satellite signal, mobile core network cannot obtain the situations such as cellphone GPS information, use two algorithms of the present invention to obtain
Take location information of mobile terminal, algorithm one: calculated with primary and secondary strong service signal base station location by the TA value of dominant base Serving cell
Method determines position and the algorithm two of emergency terminal: a length of by convert with dominant base, secondary strong basis station, secondary strong basis station TA value
Radius draws three circles, with three circle intersecting areas, three intersecting point coordinates, three intersecting point coordinate degree of learning from else's experience respectively and latitude median method
Determine the position of emergency terminal；As long as wherein the advantage of algorithm one be, algorithm simple mobile terminal fast to mobile terminal location with
Base station call has been set up and can have been positioned by this algorithm, without carrying out forcing handover operation to mobile communications network without shadow
Ring ..., shortcoming is that positioning precision can be affected decline by base station signal, primary and secondary base station location precision etc.；The advantage of algorithm two is right
The positioning precision of mobile terminal is higher, determines that emergent mobile terminal is carried out forcing handover operation thus to mobile communication by needs
Network produces certain impact, but along with this impact of progress of technology can progressively reduce, moreover relative to people's lives and properties
This impact of safety should be ignored；The two algorithm be to the such as Cell ID method of mobile terminal locating method currently mainly,
GPS(or A-GPS) method, a kind of useful supplement of WIFI method.
Claims (9)
1. an emergency communication positioning subsystem, it is characterised in that: this system includes positioning fixing crisis phone only and right
Moving emergency phone carries out positioning, emergency communication positioning subsystem is connected with fixed line communication system by CRM interface, emergency communication
Positioning subsystem is connected with big data platform by TCP/IP interface, emergency communication positioning subsystem is logical with mobile by A interface
Communication system is connected, the mobile communication interface (2G, 3G, 4G) that used by current existing network of emergency communication positioning subsystem with answer first aid
Help onboard system to be connected.
2. the fixed line localization method of employing emergency communication positioning subsystem described in claim 1, it is characterised in that: pass through fixed line
Telephone number, the method analyzed in conjunction with up-to-date fixed line address information database, big data platform, fixed line number attribution, this calculation
The related algorithm process following steps of method:
Step 1: set up and comprise all fixed line address informations (fixed line carrier has an address information of most of fixed line, emergent takes
Business platform should have obtain the authority of fixed line address information and upgrade in time) up-to-date fixed line data base, positioned by fixed line communication
What platform carried searches element engine, finds the specific address carrying out emergency communication fixed line, can be achieved with positioning this fixed line；
Step 2: when the fixed line information of calling emergency communication is not in fixed line data base, emergency communication positioning subsystem passes through
TCP/IP interface is connected with big data platform, utilizes big data retrieval mode to search out the specific address of fixed line；
Step 3: when the fixed line information of calling emergency communication is not in fixed line data base, it is the most fixed to be carried out by fixed line number
Position, method is first to find city, place by area code, then find ownership place by office number, and location can be as accurate as villages and small towns.
3. the position finding method for mobile telephone of employing emergency communication positioning subsystem described in claim 1, it is characterised in that: pass through
The CellID of the main Serving cell of mobile terminal, the GPS information of acquisition mobile communication terminal, the TA value of acquisition mobile terminal
(Time Advance Timing Advance, in mobile communication system parameter TOA:Time of Arrival time of advent,
The TDOA:Time Difference of Arrival difference time of advent and TA have concordance, a positive correlation, thus use TOA,
TDOA combines the localization method of patent of the present invention and all can be considered infringement) and combine accurate latitude and longitude of base station data base by this
Algorithm one in bright patent: being determined by the TA value of dominant base Serving cell and primary and secondary strong service signal base station location algorithm should
The position of anxious terminal；Algorithm two: by drawing three with dominant base, secondary strong basis station, a length of radius of secondary strong basis station TA value conversion
Individual circle, determines emergent with three circle intersecting areas, three intersecting point coordinates, three intersecting point coordinate degree of learning from else's experience respectively and latitude median method
The position of terminal.
Initially set up one the most as claimed in claim 3 and comprise the accurate of the accurate latitude and longitude information in all base stations, TA value and distance
The mobile terminal locating platform of conversion table.
5. algorithm one as claimed in claim 3: calculated with primary and secondary strong serving BS position by the TA value of dominant base Serving cell
Method determines that the position of emergency terminal uses following steps.
6. step 1: obtain the TA value of main serving base station cell, according to the base station position information set up, TA value (time advance
Amount) and the corresponding relation of distance, with main serving BS A as round dot, length R of main serving BS TA value conversion is that radius draws circle；
Step 2: obtain base station in service sector B of time strong signal in adjacent area, obtain according to the base station position information set up secondary strong
Base station B location coordinate；
Step 3: according to the base station position information set up, finds out the longitude and latitude (a1, b1) of main base station in service sector A, secondary respectively
The longitude and latitude (a2, b2) of strong base station in service sector B, calculates distance D between two base stations by below equation:
D=
Step 4: length R of main serving BS TA value conversion, can calculate primary and secondary strong basis by below equation and stand erectly linear distance
Between, away from the latitude and longitude coordinates value of the some E that main serving BS distance is R:
(X-a1)²+(Y-b1)²=R²
(X-a2)²+(Y-b2)²=(D-R)²
Show that the intersection point E coordinate of two circles is respectively (X, Y), because intersection point E is positioned at dominant base by solving of aforesaid equation
With on the straight line line at secondary strong basis station, therefore the coordinate of intersection point E obtained of aforesaid equation is for a bit, intersection point E(X, Y) can approximate and recognize
For being the position of moving emergency calling terminal.
7. algorithm two as claimed in claim 3: utilize three circle phases by dominant base, secondary strong basis station, the TA value at secondary strong basis station
The position of emergency terminal uses following steps to hand over algorithm to determine.
8. step 1: when mobile terminal initiates Location Request, obtains the TA value of mobile terminal message center main Serving cell；
Step 2: terminal is initiated pressure and switched to time strong cell information by terminal positioning platform, obtains the secondary strong of terminal message center
The TA value of Serving cell；
Step 3: step c obtains the TA value of time strong, secondary multiple Serving cells such as by force strong, secondary repeatedly；
Step 4: when obtaining the TA value of base station serving cell of more than at least 3, according to the base station position information set up, TA
With the accurate conversion table of distance, with base station as round dot, draw circle with a length of radius of the TA value conversion of different base station, three circles
Overlapping region is exactly moving emergency communication terminal position；
Step 5: three circle overlapping regions three intersecting point coordinates ask method as follows:
The coordinate of known base station A is (a1, b1), and the length value being 1. worth conversion with the TA of base station A to moving emergency communication terminal is
Radius R1；The coordinate of base station B is (a2, b2), is 2. worth the length value of conversion as radius with base station B to the TA of mobile emergence terminal
R2；
Row binary quadratic equation group accordingly
(X-a1)²+(Y-b1)²=R1²
(X-a2)²+(Y-b2)²=R2²
Show that the intersecting point coordinate of two circles is respectively (X1, Y1) by solving of aforesaid equation, (X2, Y2)；
In like manner can calculate remaining two circle joining coordinate (X3, Y3), (X4, Y4) and (X5, Y5), (X6, Y6) respectively；
Step 6: take respectively in two intersecting point coordinates that the circle of each two in step 5 intersects with the 3rd base station coordinates apart near friendship
Point (X1, Y1), (X3, Y3), (X5, Y5)；These three intersecting point coordinate is the coordinate of three intersection points of three circle overlapping regions；
Step 7: moving emergency communication terminal coordinate algorithm:
Take in step 6 the three circle longitudes of three intersecting point coordinates of overlapping region respectively, latitude is one group, in longitude group fetch bit in
Middle longitude between three is as the longitude of moving emergency communication terminal, and in like manner, in latitude group, fetch bit is between three
Middle latitude is as the latitude of moving emergency communication terminal, and reduction formula is as follows:
Moving emergency communication terminal longitude X=X1+X3+X5-MAX(X1, X3, X5)+MAX(-X1 ,-X3 ,-X5)
Moving emergency communication terminal longitude Y=Y1+Y3+Y5-MAX(Y1, X3, X5)+MAX(-X1 ,-X3 ,-X5)
The longitude and latitude (X, Y) of moving emergency communication terminal is derived by algorithm above.
9. the mobile communication interface as claimed in claim 1 address information of emergency communication terminal used by current existing network
(2G, 3G, 4G) is sent to emergency break down lorry, demonstrates emergency communication terminal in the map of emergency management and rescue onboard system platform
Position.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110225455A (en) * | 2019-07-04 | 2019-09-10 | 长沙环康科技有限公司 | User's precise positioning method of intelligent rescue system and intelligent rescue system |
| WO2020034211A1 (en) * | 2018-08-17 | 2020-02-20 | 华为技术有限公司 | Method of acquiring identifier of terminal device and network element |
| CN111897902A (en) * | 2020-07-14 | 2020-11-06 | 西安润森数码网络科技有限责任公司 | LBS and GIS based accurate positioning method, device and storage medium |
| CN116366611A (en) * | 2021-12-28 | 2023-06-30 | 中国电信国际有限公司 | Called number completion method, device, equipment and medium for international roaming service |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393993A (en) * | 2011-07-06 | 2012-03-28 | 江苏省莱科信息技术有限公司 | Emergency rescuing system |
| CN102447797A (en) * | 2010-10-13 | 2012-05-09 | 上海众恒信息产业股份有限公司 | Correlation method of GIS (Geographic Information System) and communication system and system |
| CN103476108A (en) * | 2013-07-03 | 2013-12-25 | 北京富迪创业科技有限公司 | Mobile communication terminal positioning method |
| US20140379721A1 (en) * | 2013-03-15 | 2014-12-25 | Athoc, Inc. | Personnel Crisis Communication Management System |
| CN105554876A (en) * | 2015-12-09 | 2016-05-04 | 广东欧珀移动通信有限公司 | Mobile terminal positioning method and mobile terminal |
-
2016
- 2016-06-29 CN CN201610485011.2A patent/CN106161809A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447797A (en) * | 2010-10-13 | 2012-05-09 | 上海众恒信息产业股份有限公司 | Correlation method of GIS (Geographic Information System) and communication system and system |
| CN102393993A (en) * | 2011-07-06 | 2012-03-28 | 江苏省莱科信息技术有限公司 | Emergency rescuing system |
| US20140379721A1 (en) * | 2013-03-15 | 2014-12-25 | Athoc, Inc. | Personnel Crisis Communication Management System |
| CN103476108A (en) * | 2013-07-03 | 2013-12-25 | 北京富迪创业科技有限公司 | Mobile communication terminal positioning method |
| CN105554876A (en) * | 2015-12-09 | 2016-05-04 | 广东欧珀移动通信有限公司 | Mobile terminal positioning method and mobile terminal |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020034211A1 (en) * | 2018-08-17 | 2020-02-20 | 华为技术有限公司 | Method of acquiring identifier of terminal device and network element |
| CN110225455A (en) * | 2019-07-04 | 2019-09-10 | 长沙环康科技有限公司 | User's precise positioning method of intelligent rescue system and intelligent rescue system |
| CN110225455B (en) * | 2019-07-04 | 2021-08-31 | 长沙环康科技有限公司 | User accurate positioning method of intelligent rescue system and intelligent rescue system |
| CN111897902A (en) * | 2020-07-14 | 2020-11-06 | 西安润森数码网络科技有限责任公司 | LBS and GIS based accurate positioning method, device and storage medium |
| CN116366611A (en) * | 2021-12-28 | 2023-06-30 | 中国电信国际有限公司 | Called number completion method, device, equipment and medium for international roaming service |
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