CN205693895U - Wireless location system based on orientation Wi Fi - Google Patents
Wireless location system based on orientation Wi Fi Download PDFInfo
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- CN205693895U CN205693895U CN201620341522.2U CN201620341522U CN205693895U CN 205693895 U CN205693895 U CN 205693895U CN 201620341522 U CN201620341522 U CN 201620341522U CN 205693895 U CN205693895 U CN 205693895U
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Abstract
This utility model provides a kind of alignment system based on orientation Wi Fi, and two Wi Fi AP with directional rotating antenna are placed on the both sides in region, location for launching wireless signal by this system.Client computer moves in region, location, receives the wireless signal from orientation AP simultaneously, then the data with signal correction are supplied to calculate device.Calculate device to be analyzed these data processing, calculate the position of client computer and its positional information is returned to client computer, thus client computer is carried out real time location tracking.This system can carry out on-the-spot laying at any time, everywhere, without entrance is on-the-spot or constructs in indoor in advance.And avoid large-scale Primary Stage Data collecting work, meet the instantaneity demand of emergent occasion.
Description
Technical field
This utility model relates to wireless location system, particularly relates to wireless location system based on orientation Wi-Fi.
Background technology
In a lot of emergent indoor scenarios, such as scene of fire, be required for one can lay in time, comparatively safe and convenient
The personnel tracking alignment system used.Respective limitation is all there is in existing localization method and system in emergent occasion.Example
As, GPS alignment system based on satellite communication needs the condition visual with satellite holding sight line, in indoor or building environment
Cannot position.Alignment system based on mobile base station depends on based mobile communication facility, and its positioning precision depends on base station towers
The distribution density of platform, the most also cannot meet the positioning accuracy request of indoor room rank.Use determining of infrared ray and ultrasound wave
Position mode is easily blocked by building medium in scene.Location based on bluetooth mode is detectable close together, is the most easily subject to
Medium blocks.And, infrared, ultrasound wave and bluetooth location mode are required for hard at the corresponding environment of indoor deployments in various degree
Part facility, it is impossible to meet the demand laid in time.Comparatively speaking, location based on Wi-Fi mode is relatively suitable for indoor scenarios.
But existing Wi-Fi alignment system, as described in list of references 1 technical scheme (list of references 1:Q.Yang,
S.J.Pan, and V.W.Zheng, Estimating location using Wi-Fi, IEEE Intelligent
Systems, vol.23, no.1, pp.8-13,2008.), it is essentially all employing method based on machine learning, is generally divided into
Two stages: off-line training step and tuning on-line stage.Each reference node in off-line training step gathers region, required location
The signal characteristic parameter (being referred to as finger print information) of point (Reference Point, RP), one of which finger print information is corresponding
One specific position, is consequently formed location fingerprint data base.The tuning on-line stage utilizes receiver to measure the ginseng receiving signal
Number, uses matching algorithm and the data match in fingerprint database, estimates the physical location of user.Visible, this type of system is all
Need to gather a large amount of training data in advance in the first stage, form tranining database, and then obtain location model.Therefore, existing
Wi-Fi localization method system cannot meet laying in time in emergent indoor scenarios environment, facilitate the instantaneity need such as use
Ask.
Utility model content
Therefore, the purpose of this utility model is to overcome the defect of above-mentioned prior art, it is provided that a kind of based on orientation Wi-Fi
Wireless location system, can lay in time, convenient use and comparatively safe.
The purpose of this utility model is achieved through the following technical solutions:
A kind of wireless location system based on orientation Wi-Fi, this system includes:
Being placed on two orientation Wi-Fi access points equipment of both sides, region, location, described orientation Wi-Fi accesses and accesses
Point device is made up of Wi-Fi access points equipment, directional receiving antenna and turntable, and said two orientation Wi-Fi accesses and connects
Entering point device and be operationally in ceaselessly rotation status, and launch signal, described directional receiving antenna is dual-polarized antenna；
Client computer, is comprised Wi-Fi circuit module, Wi-Fi intensity detection module, and is connect by described Wi-Fi circuit module
Receiving the wireless signal from two orientation Wi-Fi access points equipment, this transmission of wireless signals is to Wi-Fi intensity detection mould
Block, detects signal intensity, and is sent to calculate device；
Calculating device, described calculating device includes storing device and computing module.
Preferably, described directional receiving antenna include oscillator, subfeeder and main feeder, described oscillator include horizontal dipole,
Tilting oscillator and vertical dipole, described main feeder is connected with horizontal dipole, inclination oscillator, vertical dipole respectively by subfeeder.
Preferably, described horizontal dipole and vertical dipole by horizontal positioned and are disposed vertically structure by two microstrip antennas
Becoming, described inclination oscillator is tilted 45 ° by two microstrip antennas and is formed；Described main feeder is presented by two pairs respectively by power splitter
Line and horizontal positioned, be disposed vertically, 45 ° of tilted-putted microstrip antennas are connected.
Preferably, described Wi-Fi intensity detection module includes MCU, wireless signal field testing circuit module, high-frequency gain
Circuit module, amplification circuit module, wireless signal field testing circuit module, after receiving wireless field density signal, is transferred to
MCU, MCU export control signal according to field intensity signal, and control signal is transferred to high-frequency gain circuit module, and described high frequency increases
Benefit circuit module is connected with amplification circuit module, and is transferred to put by this control signal processed through high-frequency gain circuit module
Big circuit module, amplified and after MCU processes sent along the giving of wireless signal field data calculates device.
Preferably, described MCU selects M30620 type single-chip microcomputer.
Preferably, described calculating device is arranged on the server being positioned at beyond region, location；
Said two orientation Wi-Fi access points equipment uses WLAN mode to be connected with server, and described client computer is led to
Cross one of them orientation Wi-Fi access points equipment to communicate with server；Said two orientation Wi-Fi access points
At least one in equipment is connected with using two-way communication between server.
Preferably, described turntable connects electric rotating machine, and the controller being electrically connected with electric rotating machine, controls to rotate
The rotary speed of motor；
Described turntable is provided with angle recordings circuit, the anglec of rotation of record turntable, and is sent to calculate device.
Preferably, wherein said client computer is to have the mobile terminal device of Wi-Fi communication function.
Preferably, described computing module finds out, according to these signal strength informations, the moment t that maximum signal is corresponding,
And determine the client computer at that time corresponding to t and the angle between two orientation Wi-Fi access points equipment, and based on visitor
Between angle and two orientation Wi-Fi access points equipment between family machine and two orientation Wi-Fi access points equipment
Distance, calculates client computer position.
Preferably, described angle is zero graduation side with the line direction between two orientation Wi-Fi access points equipment
To.
This system only needs a station server, a client and 2 orientation Wi-Fi AP, therefore, can at any time,
Carry out on-the-spot laying everywhere, without entrance is on-the-spot or constructs in indoor in advance.Simultaneously, it is to avoid issue before large-scale
According to collecting work, meet the instantaneity demand of emergent occasion.Additionally, not only cost is relatively low, and do not blocked restriction, such as
Temperature, humidity, the mobile personnel of interior of building, all without having influence on positioning precision, also can be tracked determining by barrier etc.
Position.
Accompanying drawing explanation
Referring to the drawings this utility model embodiment is described further, wherein:
Fig. 1 is the positioning system structure schematic diagram based on orientation Wi-Fi according to this utility model embodiment；
Fig. 2 is the alignment system workflow schematic diagram based on orientation Wi-Fi according to this utility model embodiment.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage are clearer, below in conjunction with accompanying drawing by tool
This utility model is further described by body embodiment.Should be appreciated that specific embodiment described herein is only in order to solve
Release this utility model, be not used to limit this utility model.
Fig. 1 shows the structural representation of the alignment system based on orientation Wi-Fi according to this utility model embodiment.Should
System includes client computer, calculates device and two orientation Wi-Fi access points equipment.Orientation Wi-Fi access points sets
Standby can be also simply referred to as orients Wi-Fi AP (Access point).In the present embodiment, orientation Wi-Fi AP is by common Wi-Fi
Access points equipment forms plus rotatable directional receiving antenna.In this alignment system, two with spin orientation sky
The Wi-Fi AP of line be placed on location region both sides for launching wireless signal, both sides the most outside the building.Client
Machine moves in region, location, receives the wireless signal from orientation AP simultaneously, then the data with signal correction are supplied to
Calculate device.Calculate device to be used for being analyzed these data processing, calculate the position of client computer and by its positional information
Return to client computer, thus client computer is carried out real time location tracking.Calculate device to may be located on a client or by client
Machine provides the function calculating device.
Specifically, this system includes:
Being placed on two orientation Wi-Fi access points equipment of both sides, region, location, described orientation Wi-Fi accesses and accesses
Point device is made up of Wi-Fi access points equipment, directional receiving antenna and turntable, and said two orientation Wi-Fi accesses and connects
Entering point device and be operationally in ceaselessly rotation status, and launch signal, described directional receiving antenna is dual-polarized antenna；
Client computer, is comprised Wi-Fi circuit module, Wi-Fi intensity detection module, and is connect by described Wi-Fi circuit module
Receiving the wireless signal from two orientation Wi-Fi access points equipment, this transmission of wireless signals is to Wi-Fi intensity detection mould
Block, detects signal intensity, and is sent to calculate device；
Calculating device, described calculating device includes storing device and computing module.
In a specific embodiment, in terminal, for more accurately acquire the exact position of two AP with
And angle information, the Wi-Fi intensity detection module in this terminal can be used following set-up mode: this module includes MCU, nothing
Line signal strength testing circuit module, high-frequency gain circuit module, amplification circuit module, wireless signal field testing circuit module
After receiving wireless field density signal, it is transferred to MCU, MCU and exports control signal according to field intensity signal, and control signal is transmitted
To high-frequency gain circuit module, described high-frequency gain circuit module is connected with amplification circuit module, and will be through high-frequency gain electricity
This control signal of road resume module is transferred to amplification circuit module, amplified with the wireless signal field after MCU processes
Sent along the giving of data calculates device.This control signal can control the field intensity signal that computing module record changes, and i.e. exists
When varying more than certain threshold value, trigger the field intensity signal calculating the device record moment at that time, thus for judging that antenna direction provides
Data foundation.
In a specific embodiment, described MCU selects M30620 type single-chip microcomputer, it is of course also possible to use its alloytype
Number or the single-chip microcomputer of other series.
In a specific embodiment, calculate device and can also be positioned on single server or by individually taking
Business device serves as calculating device, so can ensure that computational efficiency.As it is shown in figure 1, AP uses WLAN mode to be connected with server,
Client computer is communicated (based on WLAN communication protocol) with server by one of them AP, and meanwhile, client computer gathers all AP
Signal intensity and the information of the signal intensity of collect two AP is sent to server.Between client computer and server
Communication is two-way, and one of them AP and server are two-way, for example, the passage of client computer offer Connection Service device, other one
Individual AP can be unidirectional, the most only needs to send wireless signal.And the distance between AP is according to actual on-the-spot field
Scape sets.That is, after the two AP is placed on the both sides in region, location, obtained by measurement.Rotation on AP
The rotary speed turning beam antenna can be carried out control realization by rotary head.The speed of two rotable antennas can be identical, it is possible to
With difference.In a specific embodiment, this turntable can connect an electric rotating machine, to drive this turntable, and this rotation
Motor can connect a control circuit and angle recordings circuit, for controlling the velocity of rotation of motor, and records turntable
The anglec of rotation, this anglec of rotation can be with 360 degree as maximum.
With continued reference to Fig. 1, more specifically, described client computer can be to have the various mobile terminals of Wi-Fi communication function
Equipment (hereinafter referred to as mobile terminal or terminal), such as mobile phone etc..Described server such as can be by having common PC
The computer of machine function serves as.Can be according to from client computer by server or the calculating device that runs on the server
Data, calculate the position of client computer.Calculate device to could be arranged to comprise a computing module and storage circuit or storage mould
Block, to complete to calculate and the alternating transmission of data, this computing module can be the circuit realiration such as cpu chip.
It is rotationally oriented AP to be mainly made up of three parts: radio reception device Wi-Fi AP, beam antenna and turntable.
Beam antenna controls Wi-Fi AP and launches the direction of signal, and turntable drives antenna to rotate.And these assembly of elements all compare often
See, and extremely cheap, additionally set up the most very convenient.Why using turntable to drive antenna to rotate is in order to more
Good obtains angle information.
Wherein, in a specific embodiment, for being more precisely carried out location, this beam antenna can use such as
Lower design realize: described directional receiving antenna include oscillator, subfeeder and main feeder, described oscillator include horizontal dipole,
Tilting oscillator and vertical dipole, described main feeder is connected with horizontal dipole, inclination oscillator, vertical dipole respectively by subfeeder.
For ease of more accurately acquiring aerial signal and angle, described horizontal dipole and vertical dipole are by two micro-strip
Antenna is by horizontal positioned and is disposed vertically composition, and described inclination oscillator is tilted 45 ° by two microstrip antennas and formed；Described main feed
Line by power splitter respectively by two subfeeders and horizontal positioned, be disposed vertically, 45 ° of tilted-putted microstrip antennas are connected.
Fig. 2 gives the workflow diagram of the alignment system according to this utility model embodiment.Wherein, it is placed on location
Two orientation AP of the both sides outside region ceaselessly rotate and launch signal；Mobile terminal in region, location receives from two
The signal of orientation AP, the signal intensity of record received signal, and the information recorded is supplied to server；Server root
Find out, according to these signal strength informations, the moment t that maximum signal is corresponding, and calculate mobile terminal and two at that time according to t
Angular relationship between AP, and finally calculate mobile terminal position.
In sum, compared with prior art, the alignment system in this utility model embodiment is simple.Have only to one
Station server, a client computer and 2 orientation Wi-Fi AP, therefore can lay at carrying out scene at any time, everywhere, and
Need not enter scene or indoor in advance construct.Meanwhile, this system obviates large-scale Primary Stage Data collecting work, full
The emergent occasion instantaneity demand of foot, and do not blocked restriction, the mobile personnel of interior of building can be tracked calmly
Position.
Although this utility model has been described by means of preferred embodiments, but this utility model is not limited to this
Embodiment described by, also includes done various changes and change in the case of without departing from this utility model scope
Change.
Claims (7)
1. a wireless location system based on orientation Wi-Fi, it is characterised in that this system includes:
Being placed on two orientation Wi-Fi access points equipment of both sides, region, location, described orientation Wi-Fi access points sets
For being made up of Wi-Fi access points equipment, directional receiving antenna and turntable, said two orientation Wi-Fi access points
Equipment is operationally in ceaselessly rotation status, and launches signal, and described directional receiving antenna is dual-polarized antenna；
Described turntable connects electric rotating machine, and the controller being electrically connected with electric rotating machine, controls the rotation of electric rotating machine
Speed；
Described turntable is provided with angle recordings circuit, the anglec of rotation of record turntable, and is sent to calculate device；
Client computer, comprises Wi-Fi circuit module, Wi-Fi intensity detection module, and receives by described Wi-Fi circuit module
From the wireless signal of two orientation Wi-Fi access points equipment, this transmission of wireless signals is to Wi-Fi intensity detection module, inspection
Survey signal intensity, and be sent to calculate device；
Calculating device, described calculating device includes storing device and computing module.
System the most according to claim 1, it is characterised in that: described directional receiving antenna includes oscillator, subfeeder and master
Feeder line, described oscillator includes horizontal dipole, tilts oscillator and vertical dipole, and described main feeder is shaken with level respectively by subfeeder
Son, inclination oscillator, vertical dipole are connected.
System the most according to claim 2, it is characterised in that: described horizontal dipole and vertical dipole are by two micro-strip skies
Line is by horizontal positioned and is disposed vertically composition, and described inclination oscillator is tilted 45 ° by two microstrip antennas and formed；Described main feeder
By power splitter respectively by two subfeeders and horizontal positioned, be disposed vertically, 45 ° of tilted-putted microstrip antennas are connected.
System the most according to claim 1, it is characterised in that: described Wi-Fi intensity detection module includes MCU, wireless communication
Number field intensity testing circuit module, high-frequency gain circuit module, amplification circuit module, wireless signal field testing circuit module is connecing
After receiving wireless field density signal, it is transferred to MCU, MCU and exports control signal according to field intensity signal, and control signal is transferred to height
Frequently gain circuitry module, described high-frequency gain circuit module is connected with amplification circuit module, and will be through high-frequency gain circuit mould
This control signal that block processes is transferred to amplification circuit module, amplified with the wireless signal field data after MCU processes
Sent along giving calculates device.
System the most according to claim 4, it is characterised in that: described MCU selects M30620 type single-chip microcomputer.
System the most according to claim 1, it is characterised in that: described calculating device is arranged at and is positioned at beyond region, location
Server on；
Said two orientation Wi-Fi access points equipment uses WLAN mode to be connected with server, and described client computer passes through it
In one orientation Wi-Fi access points equipment communicate with server；Said two orientation Wi-Fi access points equipment
In at least one and server between use two-way communication to be connected.
System the most according to claim 1, it is characterised in that: wherein said client computer is to have Wi-Fi communication function
Mobile terminal device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620341522.2U CN205693895U (en) | 2016-04-21 | 2016-04-21 | Wireless location system based on orientation Wi Fi |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620341522.2U CN205693895U (en) | 2016-04-21 | 2016-04-21 | Wireless location system based on orientation Wi Fi |
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| CN205693895U true CN205693895U (en) | 2016-11-16 |
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| CN201620341522.2U Active CN205693895U (en) | 2016-04-21 | 2016-04-21 | Wireless location system based on orientation Wi Fi |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112235754A (en) * | 2020-11-23 | 2021-01-15 | 浙江海康智联科技有限公司 | V2X positioning system based on directional antenna and positioning and building method |
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2016
- 2016-04-21 CN CN201620341522.2U patent/CN205693895U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112235754A (en) * | 2020-11-23 | 2021-01-15 | 浙江海康智联科技有限公司 | V2X positioning system based on directional antenna and positioning and building method |
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