CN106162554A - A kind of localization method, Apparatus and system - Google Patents
A kind of localization method, Apparatus and system Download PDFInfo
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- CN106162554A CN106162554A CN201610670943.4A CN201610670943A CN106162554A CN 106162554 A CN106162554 A CN 106162554A CN 201610670943 A CN201610670943 A CN 201610670943A CN 106162554 A CN106162554 A CN 106162554A
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- antenna cluster
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
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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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0205—Details
-
- 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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/04—Position of source determined by a plurality of spaced direction-finders
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
Embodiments of the invention provide a kind of localization method, Apparatus and system, relate to the communications field, it is possible to resolve in prior art, the power consumption of alignment system is higher, and the problem of the positioning precision of infringement positioning unit.The method includes: obtaining the positioning result after terminal completes last positioning, i.e. primary importance information, this primary importance information instruction terminal is positioned at the overlay area of first antenna cluster；According to this primary importance information, the distance between the covering center of computing terminal and each antenna cluster, the covering center of each antenna cluster is the geometric center of the overlay area of this antenna cluster；If the distance between the covering center of terminal and the second antenna cluster, less than the distance between terminal and the covering center of first antenna cluster, then the second antenna cluster is switched to receive the signal source that terminal sends；Receive the time difference of signal source according to different antennae in each positioning unit in the second antenna cluster, determine the second place information of terminal.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of localization method, Apparatus and system.
Background technology
TDOA (Time difference of Arrival, poor based on arrival time) technology is a kind of wireless location skill
Art, it can be measured the time difference between each antenna in signal reaches each positioning unit by what terminal send, determine terminal
Positional information.
Wherein, a positioning unit includes a cluster of antennas (including at least two antennas) and arranges the hard of this cluster of antennas
Part circuit board, before realizing positioning, needs at the multiple positioning unit of indoor arrangement residing for terminal, so, on terminal sends
During row signal, can get, by multiple positioning units, the time difference that different antennae in each positioning unit receives this upward signal
(i.e. TDOA value), and then determined the positional information of terminal according to this TDOA value by location-server.
But, above-mentioned localization method, in position fixing process each time, is required to all positioning units in running order, makes
The power consumption of fixed whole alignment system increases, and, being chronically at duty can affect the life-span of positioning unit, causes positioning knot
The precision of fruit reduces.
Content of the invention
Embodiments of the invention provide a kind of localization method, Apparatus and system, it is possible to resolve alignment system in prior art
Power consumption is higher, and the problem of the positioning precision of infringement positioning unit.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
First aspect, embodiments of the invention provide a kind of localization method, are applied to alignment system, and this system includes N number of
Antenna cluster, each antenna cluster includes at least two positioning unit, and each positioning unit is connected with location-server, N >=2.
Concrete, the method includes: this location-server obtains the positioning result after terminal completes last positioning, i.e. the
One positional information, this primary importance information indicates and this terminal is positioned at first antenna cluster (first antenna cluster is this N number of cluster of antennas
Any one in Qun) overlay area in；And then, this location-server according to this primary importance information, calculate this terminal with every
Distance between the covering center (i.e. the geometric center of the overlay area of this antenna cluster) of individual antenna cluster；If this terminal and the
The covering center of two antenna clusters (the second antenna cluster is any one in addition to this first antenna cluster in this N number of antenna cluster)
Between distance, less than distance between this terminal and the covering center of this first antenna cluster, then this location-server switching
Receive the signal source that this terminal sends for this second antenna cluster；Further, according to each positioning unit in this second antenna cluster
Interior different antennae receives the time difference of this signal source, determines the second place information of this terminal, and except the second antenna cluster
The outer positioning unit in other all antenna clusters all can quit work, as such, it is possible to reduce the work(of whole alignment system
Consumption, can avoid the problem that positioning unit long continuous operation causes positioning precision to decline simultaneously.
In a kind of possible design, this location-server switches to this second antenna cluster to receive the letter that this terminal sends
Number source, comprising: this location-server sets up data cube computation with each positioning unit in this second antenna cluster；This positioning service
Device is connected with each positioning unit turn-off data in this first antenna cluster.
Or, this location-server switches to this second antenna cluster to receive the signal source that this terminal sends, comprising: this is fixed
In position server and this second antenna cluster, each positioning unit in addition to public positioning unit sets up data cube computation；This positioning takes
Business device is connected with each positioning unit turn-off data in addition to public positioning unit in this first antenna cluster；Wherein, this is public
Positioning unit is the common factor of this first antenna cluster and this second antenna cluster.
So, while each positioning unit in location-server and the second antenna cluster sets up data cube computation, also
Positioning service can be provided by each positioning unit in first antenna cluster, thus ensure the interior positioning to terminal of alignment system
Service is not interrupted.
In a kind of possible design, before this location-server obtains the primary importance information of terminal, also include: should
All positioning units are divided into N number of antenna cluster by location-server, and each antenna cluster includes at least two positioning unit,
In the overlay area of each antenna cluster, the positioning precision of any position is more than presetting precision, to ensure terminal at each antenna
In the overlay area of cluster, all can obtain more than the positioning result presetting precision.
Second aspect, embodiments of the invention provide a kind of location-server, it is characterised in that be applied to alignment system,
This system includes N number of antenna cluster, and each antenna cluster includes at least two positioning unit, and each positioning unit takes with this positioning
Business device is connected, N >=2, and this location-server includes: acquiring unit, for obtaining the primary importance information of terminal, this primary importance
Information is the positioning result after this terminal completes last positioning, and this primary importance information indicates that this terminal is positioned at first antenna bunch
In the overlay area of group, this first antenna cluster is any one in this N number of antenna cluster；Computing unit, for according to this
One positional information, calculates the distance between this terminal and the covering center of each antenna cluster, in the covering of each antenna cluster
The heart is the geometric center of the overlay area of this antenna cluster；Switch unit, if for the covering of this terminal and the second antenna cluster
Distance between center, less than distance between this terminal and the covering center of this first antenna cluster, then switch to this second
Antenna cluster receives the signal source that this terminal sends, and this second antenna cluster is to remove this first antenna bunch in this N number of antenna cluster
Any one outside Qun；Positioning unit, for receiving this according to different antennae in each positioning unit in this second antenna cluster
The time difference of signal source, determine the second place information of this terminal.
In a kind of possible design, this switch unit, specifically for: single with each positioning in this second antenna cluster
Unit sets up data cube computation；It is connected with each positioning unit turn-off data in this first antenna cluster.
Or, this switch unit, specifically for: with each positioning in addition to public positioning unit in this second antenna cluster
Unit sets up data cube computation；With each positioning unit turn-off data in addition to public positioning unit in this first antenna cluster even
Connect；Wherein, this public positioning unit is the common factor of this first antenna cluster and this second antenna cluster.
In a kind of possible design, this location-server also includes: division unit, for dividing all positioning units
For N number of antenna cluster, each antenna cluster includes at least two positioning unit, in the overlay area of each antenna cluster arbitrarily
The positioning precision of position is more than default precision.
The third aspect, embodiments of the invention provide a kind of alignment system, and this system includes: any of the above-described positioning service
Device, and N number of antenna cluster, each antenna cluster includes at least two positioning unit, each positioning unit and this positioning service
Device is connected, N >=2.
In a kind of possible design, this system also includes forwarding unit, each positioning unit by this forwarding unit with
This location-server is connected.
Fourth aspect, embodiments of the invention provide a kind of location-server, comprising: processor, memory, bus and logical
Letter interface；This memory is used for storing computer executed instructions, and this processor is connected by this bus with this memory, when this is fixed
When position server runs, this processor performs this computer executed instructions of this memory storage, so that this location-server is held
Row is such as the localization method of any one in first aspect.
5th aspect, embodiments provides a kind of computer-readable storage medium, is used for saving as above-mentioned positioning service
Computer software instructions used by device, it comprises for performing the program that above-mentioned aspect is designed by location-server.
In the present invention, the name of above-mentioned location-server does not constitute restriction to equipment or functional module itself, real in reality
In Xian, these equipment or functional module can occur with other titles.If the function of each equipment or functional module and Ben Fa
Bright similar, within the scope of belonging to the claims in the present invention and equivalent technologies thereof.
In addition, the technique effect that second aspect is brought to any one design in the 5th aspect can be found in first aspect
The technique effect that middle different designs mode is brought, here is omitted.
The aspects of the invention or other aspects meeting more straightforward in the following description.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the accompanying drawing of required use is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, all right
Obtain other accompanying drawing according to these accompanying drawings.
The configuration diagram one of a kind of alignment system that Fig. 1 provides for the embodiment of the present invention；
The configuration diagram two of a kind of alignment system that Fig. 2 provides for the embodiment of the present invention；
The structural representation of a kind of computer equipment that Fig. 3 provides for the embodiment of the present invention；
The schematic flow sheet of a kind of localization method that Fig. 4 provides for the embodiment of the present invention；
The division schematic diagram of a kind of antenna cluster that Fig. 5 provides for the embodiment of the present invention；
The structural representation of a kind of location-server that Fig. 6 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments wholely.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In describing the invention, unless otherwise stated, " multiple " are meant that two
Individual or two or more.
The terms "and/or", only a kind of incidence relation describing affiliated partner, can there are three kinds of passes in expression
System, for example, A and/or B, can represent: individualism A there is A and B, individualism B these three situation simultaneously.In addition, herein
Middle character "/", typicallys represent forward-backward correlation to the relation liking a kind of "or".
Embodiments of the invention provide a kind of localization method, can be applicable in the alignment system 100 shown in Fig. 1, wherein, and should
Alignment system 100 includes N number of antenna cluster 11, and each antenna cluster includes at least two positioning unit 12, each positioning unit
12 are connected with location-server 13, N >=2.
Wherein, positioning unit 12 is made up of a cluster of antennas (including at least two antennas) and hardware circuit board, this hardware
Being provided with the multiple interfaces for arranging antenna on circuit board, the antenna in cluster of antennas can assign in each interface respectively,
Each antenna in cluster of antennas be responsible for receive terminal send signal source, for example, LTE (Long Term Evolution, for a long time
Evolution) upward signal, and hardware circuit board is responsible for carrying out radiofrequency signal process and base band signal process to this signal source, is used
In the positioning data calculating TDOA value, and this positioning data are sent to location-server 13；Location-server 13 receives fixed
Utilize TDOA technology to carry out positioning calculation after the positioning data that bit location 12 sends, finally give the position result of terminal.
In the embodiment that the present invention provides, location-server can also complete last positioning according to terminal after positioning
Result (i.e. primary importance information), primary importance information instruction terminal is positioned at the overlay area of first antenna cluster, calculates eventually
End with the covering center of each antenna cluster between distance, between the covering center of terminal and the second antenna cluster away from
From, when being less than the distance between terminal and the covering center of first antenna cluster, location-server switches from first antenna cluster
Be the second antenna cluster receiving the signal source that terminal sends, and according in each positioning unit in the second antenna cluster not on the same day
Line receives the time difference of signal source, determines the second place information of terminal, and other in addition to the second antenna cluster own
Positioning unit in antenna cluster all can quit work, as such, it is possible to reduce the power consumption of whole alignment system, can avoid simultaneously
Positioning unit long continuous operation causes the problem that positioning precision declines.
Further, as in figure 2 it is shown, above-mentioned alignment system 100 also includes forwarding unit 14, for example, router, switch
Deng wherein, each positioning unit 12 is connected with location-server 13 by forwarding unit 14.So, positioning unit 12 is used
After the positioning data calculating TDOA value, this positioning data can be sent to location-server 13 by forwarding unit 14.
Exemplary, the location-server 13 in Fig. 1 or Fig. 2 can be with the side of the computer equipment (or system) in Fig. 3
Formula realizes.
Fig. 3 show the computer equipment schematic diagram that the embodiment of the present invention provides.Computer equipment 200 includes at least one
Processor 21, communication bus 22, memory 23 and at least one communication interface 24.
Wherein, processor 21 can be a general central processor (CPU), microprocessor, ASIC
(application-specific integrated circuit, ASIC), or one or more for controlling the present invention program
The integrated circuit that program performs.
Communication bus 22 can include a path, transmits information between said modules.Described communication interface 24, uses any
The device of transceiver one class, is used for and other equipment or communication, such as Ethernet, wireless access network (RAN), wireless office
Territory net (Wireless Local Area Networks, WLAN) etc..
Memory 23 can be that read-only storage (read-only memory, ROM) or can store static information and instruction
Other kinds of static storage device, random access memory (random access memory, RAM) or letter can be stored
Breath and the other kinds of dynamic memory of instruction, it is also possible to be EEPROM (Electrically
Erasable Programmable Read-Only Memory, EEPROM), read-only optical disc (Compact Disc Read-
Only Memory, CD-ROM) or other optical disc storage, laser disc storage (include compression laser disc, laser disc, laser disc, digital universal
Laser disc, Blu-ray Disc etc.), magnetic disk storage medium or other magnetic storage apparatus or can be used in carrying or storing that there is finger
Order or the desired program code of data structure form simultaneously by any other medium of computer access, but can be not limited to this.
Memory can be to be individually present, and is connected with processor by communication bus.Memory also can be integrated in one with processor
Rise.
Wherein, described memory 23 is used for storing the application code performing the present invention program, and by processor 21
Control performs.Described processor 21 is for performing the application code of storage in described memory 23.
In implementing, as a kind of embodiment, processor 21 can include one or more CPU, such as in Fig. 3
CPU0 and CPU1.
In implementing, as a kind of embodiment, computer equipment 200 can include multiple processor, such as in Fig. 3
Processor 21 and processor 28.Each in these processors can be monokaryon (single-CPU) processor, also
It can be multinuclear (multi-CPU) processor.Here processor can refer to one or more equipment, circuit and/or use
In the process core processing data (such as computer program instructions).
In implementing, as a kind of embodiment, computer equipment 200 can also include that output equipment 25 and input set
Standby 26.Output equipment 25 and processor 21 communicate, and can show information in many ways.For example, output equipment 25 can be
Liquid crystal display (liquid crystal display, LCD), Light-Emitting Diode (light emitting diode, LED) shows
Show equipment, cathode-ray tube (cathode ray tube, CRT) display device, or projecting apparatus (projector) etc..Input sets
Communicate for 26 and processor 21, the input of user can be accepted in many ways.For example, input equipment 26 can be mouse, key
Dish, touch panel device or sensing equipment etc..
Above-mentioned computer equipment 200 can be a general purpose computing device or a dedicated computing machine equipment.
In implementing, computer equipment 200 can be desktop computer, portable computer, the webserver, palm PC
(Personal Digital Assistant, PDA), cell phone, panel computer, wireless terminal device, communication equipment, embedded
Formula equipment or the equipment having similar structures in Fig. 3.The embodiment of the present invention does not limit the type of computer equipment 200.
It should be noted that in present example, any one functional node in above-mentioned alignment system 100, for example
Location-server 13, may be realized by an entity device, it is also possible to jointly realized by multiple entity devices, in said system
Multiple functional nodes may be realized by different entity devices respectively, it is also possible to is all realized by same entity device.Can manage
Solve, the logic functional block that any one functional node in said system is all probably in entity device, it is possible to
The logic functional block being made up of multiple entity devices.
Further, in order to more clearly introduce a kind of localization method that the present invention provides, hereinafter all with logic function
Module illustrates as executive agent, it will be understood by those skilled in the art that logic functional block need to depend on when implementing
Rely the hardware resource on the entity device at its place.
Based on the alignment system 100 shown in Fig. 1-Fig. 3 and location-server 13, embodiments of the invention provide one positioning
Method, as shown in Figure 4, comprising:
101st, location-server obtains the primary importance information of terminal.
Wherein, above-mentioned primary importance information refer to terminal complete last positioning after positioning result, primary importance information
Instruction terminal is positioned at the overlay area of first antenna cluster.
For example, primary importance information includes the position coordinates (X, Y) of terminal, and terminal location is in first antenna
In the overlay area of cluster, wherein, this first antenna cluster is any one in above-mentioned alignment system 100 in N number of antenna cluster.
In addition, optional, before the localization method shown in location-server step 101-104, can also carry out
All positioning units are divided into N number of antenna cluster by following step 201, i.e. location-server, and each antenna cluster includes at least
Two positioning units, wherein, in the overlay area of each antenna cluster, the positioning precision of any position is more than default precision.
Exemplary, as it is shown in figure 5, positioning unit can be respectively arranged in region A, B, C in building 1, obtain 3
Antenna cluster, at least includes two positioning units in each antenna cluster, and so that the overlay area of each antenna cluster
The positioning precision of (i.e. region A, B, C) interior any position is more than presetting precision, and for example, default precision is that position error is ± 3
Within meter, then, in the position error of overlay area inner position unit of each antenna cluster all within ± 3 meters.
It should be noted that the overlay area of each the antenna cluster shown in Fig. 5 is circle, it is to be understood that
The shape of the overlay area of any antenna cluster, with this antenna cluster inner position unit to arrange position relevant, therefore, any sky
The overlay area of line cluster can be any regular or irregular geometry, and those skilled in the art can be according to actual feelings
Condition is to the position of antenna cluster inner position unit and how much disposes, and this is not limited in any way by the embodiment of the present invention.
Position in addition, adjacent antenna cluster can be multiplexed identical positioning unit, i.e. adjacent antenna cluster
Can there is overlap between overlay area, in embodiments of the present invention, positioning unit identical in adjacent antenna cluster is referred to as
Public positioning unit.
102nd, location-server is according to primary importance information, between the covering center of computing terminal and each antenna cluster
Distance.
Wherein, the covering center of each antenna cluster is the geometric center of the overlay area of this antenna cluster, for example, Fig. 5
The covering center of middle antenna cluster 1 is the geometric center of region A, the i.e. center of circle of region A.
And the positional information of each positioning unit in each antenna cluster that can be stored with in advance in location-server, this
Sample, location-server can determine each antenna cluster according to the positional information of each positioning unit in each antenna cluster
Covering center, and then, the primary importance information according to terminal calculates between terminal and the covering center of each antenna cluster
Distance.
Or, the positional information at the covering center of each antenna cluster that can be stored with in advance in location-server, this
Sample, location-server can the position letter at the direct covering center of the primary importance information according to terminal and each antenna cluster
Breath, calculates the distance between terminal and the covering center of each antenna cluster.
If the distance between the covering center of 103 terminals and the second antenna cluster, less than terminal and first antenna cluster
Distance between covering center, then location-server switches to the second antenna cluster to receive the signal source that terminal sends.
Concrete, location-server can big with the distance between the covering center of comparison terminal and each antenna cluster
Little, owing in the primary importance information that last time positioning obtains, instruction terminal is positioned at the overlay area of first antenna cluster, because of
This, location-server can be by the distance between terminal to the covering center of other antenna clusters, with terminal to first antenna bunch
Distance between the covering center of group compares.
When terminal and the second antenna cluster, (the second antenna cluster is appointing in addition to first antenna cluster in N number of antenna cluster
One) covering center between distance, during less than distance between terminal and the covering center of first antenna cluster, i.e. illustrate
Terminal is now closer to the covering center of the second antenna cluster, now, only uses the positioning unit pair in the second antenna cluster
Terminal carries out positioning the current positional information (i.e. second place information) of i.e. available terminal.
Therefore, the first antenna cluster that location-server uses when can position the last time, switches to above-mentioned second day
Line cluster, i.e. uses each positioning unit in the second antenna cluster to receive the signal source that terminal sends, and except the second antenna
The positioning unit in other all antenna clusters outside cluster all can quit work, and so, both can ensure that the positioning of terminal
Precision, can reduce again the power consumption of whole alignment system, positioning unit long continuous operation can be avoided to cause positioning precision simultaneously
The problem declining.
Concrete, when first antenna cluster does not exists common factor with the second antenna cluster, location-server can first and the
Each positioning unit in two antenna clusters sets up data cube computation；After above-mentioned data cube computation is set up, location-server is again with
Each positioning unit turn-off data in one antenna cluster connects, and for example, each positioning unit in first antenna cluster is sent out
Sending out-of-work instruction, so, each positioning unit in location-server and the second antenna cluster sets up data cube computation
While, positioning service can also be provided by each positioning unit in first antenna cluster, thus right in ensureing alignment system
The positioning service of terminal is not interrupted.
Or, when first antenna cluster with second antenna cluster exist occur simultaneously when, i.e. first antenna cluster with second day
Having above-mentioned public positioning unit in line cluster, now, location-server can remove this public fixed first with in the second antenna cluster
Each positioning unit outside bit location sets up data cube computation；And then, location-server with in first antenna cluster, removes this public affairs again
Each positioning unit turn-off data outside positioning unit connects altogether.
104th, location-server receives above-mentioned signal according to different antennae in each positioning unit in the second antenna cluster
The time difference in source, determine the second place information of terminal.
Concrete, after location-server switches to the second antenna cluster to receive the signal source that terminal sends, by second
In antenna cluster, each antenna in each positioning unit receives the signal source by air interface transmission for the terminal, for example, on any LTE
Row signal, and then, each positioning unit determines the positioning data for calculating TDOA value, and this positioning data are sent to positioning
Server；After location-server receives the positioning data that the second antenna cluster each positioning unit interior sends, utilize TDOA
Technology carries out positioning calculation to this positioning data, finally gives the second place information of terminal, the i.e. positioning result of this positioning.
Further, location-server can continue said second position information, as first when positioning next time
Positional information, then repeats above-mentioned steps 101-104, it can be seen that in position fixing process each time, it is only necessary to make
Carry out positioning action with each positioning unit in an antenna cluster, such that it is able to reduce the power consumption of whole alignment system,
The problem that positioning unit long continuous operation causes positioning precision to decline can be avoided simultaneously.
Furthermore it is possible to arrange two threads, i.e. thread 1 and thread 2 at location-server, wherein it is possible to use thread 1 to hold
Row above-mentioned steps 101-103, the information of the antenna cluster after then switching in step 103 is sent to thread 2, triggers thread 2
Step 104, and the second place information updating of the terminal obtaining step 104 is that primary importance information is sent to thread 1
Perform to position next time.
Wherein, step 101-104 relates to the step that location-server performs, can be by location-server in above-mentioned Fig. 3
The corresponding program instruction that interior processor 21 performs storage in memory 23 realizes.
So far, embodiments of the invention provide a kind of localization method, and wherein, location-server obtains terminal and completes the last time
Positioning result (i.e. primary importance information) after positioning, primary importance information instruction terminal is positioned at the area of coverage of first antenna cluster
In territory, and then, location-server according to primary importance information, between the covering center of computing terminal and each antenna cluster away from
From the distance between the covering center of terminal and the second antenna cluster, less than the covering center of terminal and first antenna cluster
Between distance when, location-server switches to the second antenna cluster to receive the signal source that terminal sends, and according to the second antenna
In cluster, in each positioning unit, different antennae receives the time difference of signal source, determines the second place information of terminal, and removes
The positioning unit in other all antenna clusters outside second antenna cluster all can quit work, as such, it is possible to reduce whole
The power consumption of individual alignment system, can avoid the problem that positioning unit long continuous operation causes positioning precision to decline simultaneously.
The structural representation of a kind of location-server that Fig. 6 provides for the embodiment of the present invention, the embodiment of the present invention provides
Location-server may be used for implementing the method that the various embodiments of the present invention shown in above-mentioned Fig. 1-Fig. 5 realize, for convenience of description,
Illustrate only the part related to the embodiment of the present invention, concrete ins and outs do not disclose, and refer to this shown in Fig. 1-Fig. 5
Bright each embodiment.
Concrete, this location-server includes:
Acquiring unit 31, for obtaining the primary importance information of terminal, described primary importance information is that described terminal completes
Positioning result after last positioning, the described terminal of described primary importance information instruction is positioned at the overlay area of first antenna cluster
In, described first antenna cluster is any one in described N number of antenna cluster；
Computing unit 32, for according to described primary importance information, calculates the covering of described terminal and each antenna cluster
Distance between center, the covering center of each antenna cluster is the geometric center of the overlay area of this antenna cluster；
Switch unit 33, if for the distance between described terminal and the covering center of the second antenna cluster, is less than described
Distance between the covering center of terminal and described first antenna cluster, then switch to described second antenna cluster to receive described end
The signal source that end sends, described second antenna cluster is arbitrary in addition to described first antenna cluster in described N number of antenna cluster
Individual；
Positioning unit 34, for according in each positioning unit in described second antenna cluster, different antennae receives
The time difference of signal source, determine the second place information of described terminal.
Further, described switch unit 33, specifically for: build with each positioning unit in described second antenna cluster
Vertical data cube computation；It is connected with each positioning unit turn-off data in described first antenna cluster.
Or, described switch unit 33, specifically for: with each in addition to public positioning unit in described second antenna cluster
Individual positioning unit sets up data cube computation；Disconnect with each positioning unit in addition to public positioning unit in described first antenna cluster
Data cube computation；Wherein, described public positioning unit is the common factor of described first antenna cluster and described second antenna cluster.
Further, still as shown in Figure 6, described location-server also includes:
Division unit 35, for all positioning units are divided into N number of antenna cluster, each antenna cluster includes at least two
Individual positioning unit, in the overlay area of each antenna cluster, the positioning precision of any position is more than default precision.
In the embodiment that the present invention provides, the 31st, computing unit the 32nd, the switch unit of the acquiring unit in location-server
33rd, the concrete function of positioning unit 34 and division unit 35, can processor 21 in computer equipment 200 as shown in Figure 3
The application code calling execution the present invention program of storage in memory 23 realizes.
So far, embodiments of the invention provide a kind of location-server, and wherein, this location-server obtains terminal and completes
Positioning result (i.e. primary importance information) after one-time positioning, primary importance information instruction terminal is positioned at covering of first antenna cluster
In cover region territory, and then, location-server is according to primary importance information, between the covering center of computing terminal and each antenna cluster
Distance, the distance between the covering center of terminal and the second antenna cluster, less than the covering of terminal and first antenna cluster
During distance between center, location-server switches to the second antenna cluster to receive the signal source that terminal sends, and according to second
In antenna cluster, in each positioning unit, different antennae receives the time difference of signal source, determines the second place information of terminal,
And the positioning unit in other all antenna clusters in addition to the second antenna cluster all can quit work, as such, it is possible to fall
The power consumption of low whole alignment system, can avoid the problem that positioning unit long continuous operation causes positioning precision to decline simultaneously.
Those skilled in the art is it can be understood that arrive, for convenience and simplicity of description, only with above-mentioned each function
The division of module is illustrated, and in actual application, can distribute above-mentioned functions by different function moulds as desired
Block completes, and the internal structure of device will be divided into different functional modules, to complete all or part of work(described above
Energy.The specific works process of the system of foregoing description, device and unit, the corresponding mistake being referred in preceding method embodiment
Journey, does not repeats them here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method are permissible
Realize by another way.For example, device embodiment described above is only schematically, for example, described module or
The division of unit, is only a kind of logic function and divides, and actual can have other dividing mode, for example multiple unit when realizing
Or assembly can in conjunction with or be desirably integrated into another system, or some features can be ignored, or does not performs.Another point, institute
Display or the coupling each other discussing or direct-coupling or communication connection can be by some interfaces, device or unit
INDIRECT COUPLING or communication connection, can be electrical, machinery or other form.
The described unit illustrating as separating component can be or may not be physically separate, shows as unit
The parts showing can be or may not be physical location, i.e. may be located at a place, or also can be distributed to multiple
On NE.Some or all of unit therein can be selected according to the actual needs to realize the mesh of the present embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to two or more unit are integrated in a unit.Above-mentioned integrated list
Unit both can use the form of hardware to realize, it would however also be possible to employ the form of SFU software functional unit realizes.
If described integrated unit realizes and as independent production marketing or use using the form of SFU software functional unit
When, can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part that in other words prior art contributed or this technical scheme completely or partially can be with the form of software product
Embodying, this computer software product is stored in a storage medium, including some instructions are with so that a computer
Equipment (can be personal computer, server, or the network equipment etc.) or processor (processor) perform the present invention each
All or part of step of method described in embodiment.And aforesaid storage medium includes: USB flash disk, portable hard drive, read-only storage
(ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD
Etc. the various media that can store program code.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (10)
1. a localization method, it is characterised in that include:
Described location-server obtains the primary importance information of terminal, and described primary importance information is that described terminal completes the last time
Positioning result after positioning, the described terminal of described primary importance information instruction is positioned at the overlay area of first antenna cluster, institute
Stating any one that first antenna cluster is in N number of antenna cluster, each antenna cluster includes at least two positioning unit, N >=2；
Described location-server according to described primary importance information, calculate described terminal and each antenna cluster covering center it
Between distance, the covering center of each antenna cluster is the geometric center of the overlay area of this antenna cluster；
If the distance between the covering center of described terminal and the second antenna cluster, less than described terminal and described first antenna bunch
Distance between the covering center of group, then described location-server switches to described second antenna cluster to receive the transmission of described terminal
Signal source, described second antenna cluster is any one in described N number of antenna cluster in addition to described first antenna cluster；
Described location-server receives described signal according to different antennae in each positioning unit in described second antenna cluster
The time difference in source, determine the second place information of described terminal.
2. method according to claim 1, it is characterised in that described location-server switches to described second antenna cluster
Receive the signal source that described terminal sends, comprising:
Described location-server sets up data cube computation with each positioning unit in described second antenna cluster；
Described location-server is connected with each positioning unit turn-off data in described first antenna cluster.
3. method according to claim 1, it is characterised in that described location-server switches to described second antenna cluster
Receive the signal source that described terminal sends, comprising:
In described location-server and described second antenna cluster, each positioning unit in addition to public positioning unit sets up data
Connect；
Described location-server interior each positioning unit turn-off data in addition to public positioning unit with described first antenna cluster
Connect；
Wherein, described public positioning unit is the common factor of described first antenna cluster and described second antenna cluster.
4. the method according to according to any one of claim 1-3, it is characterised in that obtain terminal at described location-server
Before primary importance information, also include:
All positioning units are divided into N number of antenna cluster by described location-server, and each antenna cluster includes that at least two is fixed
Bit location, in the overlay area of each antenna cluster, the positioning precision of any position is more than default precision.
5. a location-server, it is characterised in that include:
Acquiring unit, for obtaining the primary importance information of terminal, described primary importance information is that described terminal completes the last time
Positioning result after positioning, the described terminal of described primary importance information instruction is positioned at the overlay area of first antenna cluster, institute
Stating any one that first antenna cluster is in N number of antenna cluster, each antenna cluster includes at least two positioning unit, N >=2；
Computing unit, for according to described primary importance information, calculate described terminal and each antenna cluster covering center it
Between distance, the covering center of each antenna cluster is the geometric center of the overlay area of this antenna cluster；
Switch unit, if for distance between described terminal and the covering center of the second antenna cluster, less than described terminal with
Distance between the covering center of described first antenna cluster, then switch to described second antenna cluster to receive described terminal and send
Signal source, described second antenna cluster is any one in described N number of antenna cluster in addition to described first antenna cluster；
Positioning unit, for receiving described signal source according to different antennae in each positioning unit in described second antenna cluster
Time difference, determine the second place information of described terminal.
6. location-server according to claim 5, it is characterised in that
Described switch unit, specifically for: set up data cube computation with each positioning unit in described second antenna cluster；With institute
State each positioning unit turn-off data in first antenna cluster to connect.
7. location-server according to claim 5, it is characterised in that
Described switch unit, specifically for: with each positioning unit in addition to public positioning unit in described second antenna cluster
Set up data cube computation；It is connected with each positioning unit turn-off data in addition to public positioning unit in described first antenna cluster；
Wherein, described public positioning unit is the common factor of described first antenna cluster and described second antenna cluster.
8. the location-server according to according to any one of claim 5-7, it is characterised in that described location-server also wraps
Include:
Division unit, for all positioning units are divided into N number of antenna cluster, each antenna cluster includes that at least two positions
Unit, in the overlay area of each antenna cluster, the positioning precision of any position is more than default precision.
9. an alignment system, it is characterised in that described system includes: the positioning clothes as according to any one of claim 5-8
Business device, and N number of antenna cluster, each antenna cluster includes at least two positioning unit, each positioning unit and described positioning
Server is connected, N >=2.
10. alignment system according to claim 9, it is characterised in that described system also includes forwarding unit, each positioning
Unit is connected with described location-server by described forwarding unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610670943.4A CN106162554A (en) | 2016-08-15 | 2016-08-15 | A kind of localization method, Apparatus and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610670943.4A CN106162554A (en) | 2016-08-15 | 2016-08-15 | A kind of localization method, Apparatus and system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1434663A (en) * | 2003-02-24 | 2003-08-06 | 重庆赛洛克无线定位有限公司 | Base station selection method for network based radio location system |
| CN101730227A (en) * | 2009-11-10 | 2010-06-09 | 大连理工大学 | Multi-base station secondary positioning method based on toughness estimation and arrival time difference |
| CN104378736A (en) * | 2014-11-26 | 2015-02-25 | 中国联合网络通信集团有限公司 | Wireless positioning method and system |
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2016
- 2016-08-15 CN CN201610670943.4A patent/CN106162554A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434663A (en) * | 2003-02-24 | 2003-08-06 | 重庆赛洛克无线定位有限公司 | Base station selection method for network based radio location system |
| CN101730227A (en) * | 2009-11-10 | 2010-06-09 | 大连理工大学 | Multi-base station secondary positioning method based on toughness estimation and arrival time difference |
| CN104378736A (en) * | 2014-11-26 | 2015-02-25 | 中国联合网络通信集团有限公司 | Wireless positioning method and system |
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