CN208422120U - Indoor garage positioning system - Google Patents
Indoor garage positioning system Download PDFInfo
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- CN208422120U CN208422120U CN201820618874.7U CN201820618874U CN208422120U CN 208422120 U CN208422120 U CN 208422120U CN 201820618874 U CN201820618874 U CN 201820618874U CN 208422120 U CN208422120 U CN 208422120U
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- garage
- bluetooth
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- wifi
- time difference
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Abstract
A kind of indoor garage positioning system includes: the AP equipment of the WIFI of the garage zone position information in garage region where record has, and record has the AP equipment of the bluetooth of parking stall data information, holds movable signal receiving device and controls the host of the AP equipment of bluetooth；Hand-held movable signal receiving device includes: the measuring device for measuring WIFI signal intensity value, judge that the signal strength in the garage region where hand-held movable signal receiving device compares device according to the intensity of the multiple WIFI signals detected, it receives Bluetooth signal and calculates the time difference measuring device of strongest two Bluetooth signals receiving time difference in the multiple bluetooth signal intensities detected, signal strength is compared to the garage area information of device judgement, the WIFI signal intensity value of measuring device measurement and the time difference of time difference measuring device measurement are transferred to the radio transmitting device of host.The utility model is beneficial in that the setting accuracy of indoor garage positioning system is high and stable signal transmission is strong.
Description
Technical field
The utility model relates to a kind of indoor garage positioning systems.
Background technique
GPS is widely used in the scenes such as electronic equipment positioning, automobile navigation, navigation air rescue, due to GPS signal without
Method penetrates building, so indoor positioning can not be realized by GPS.The application of indoor positioning is carried out using WIFI location technology at present
It is more universal.WIFI location technology orientation range is wider, but in the indoor garage of environment complexity, WIFI signal is by non-view
Away from and multipath effect influence cause its location technology realize positioning it is inaccurate, accurate car institute can not be provided the user with
Parking stall location information.
Summary of the invention
To solve the deficiencies in the prior art, the utility model, which provides, to realize the accurate of parking stall position in garage indoors
The indoor garage positioning system of positioning.
In order to achieve the above objectives, the utility model adopts the following technical solutions:
Indoor garage is divided into multiple garage regions, is equipped in each garage region by a kind of indoor garage positioning system
Multiple parking stalls, indoor garage positioning system include: the AP of the WIFI of the garage zone position information in garage region where record has
Equipment, record have the AP equipment of the bluetooth of parking stall data information, hold movable signal receiving device and control the AP equipment of bluetooth
Host；The AP equipment of a WIFI is respectively arranged in each garage region；It is respectively arranged in each garage region multiple
The AP equipment of bluetooth；Hand-held movable signal receiving device includes: the measuring device for measuring WIFI signal intensity value, according to detecting
The intensity of multiple WIFI signals judge that the signal strength in the garage region where hand-held movable signal receiving device compares device,
Receive Bluetooth signal and calculate strongest two Bluetooth signals receiving time difference in multiple bluetooth signal intensities for detecting when
Between poor measurement device, signal strength is compared into the garage area information of device judgement, the WIFI signal intensity of measuring device measurement
The time difference of value and time difference measuring device measurement is transferred to the radio transmitting device of host；Host includes: that basis receives
Garage area information and WIFI signal intensity value judge hand-held movable signal receiving device to the AP equipment of the WIFI connected
Distance simultaneously controls the AP equipment of corresponding bluetooth according to this distance and launches into the position determining device of working condition；Host also wraps
It includes: according to the parking stall data information of bluetooth equipment corresponding to strongest two Bluetooth signals of the signal strength received with timely
Between time difference for detecting of poor measurement device judge parking stall position locating for hand-held movable signal receiving device and by parking stall position
It is sent to the bluetooth positioning device of hand-held mobile signal receiver；Hand-held movable signal receiving device further include: display comes
Vehicle position display screen from the parking stall position of the bluetooth positioning device of host；Host and hand-held movable signal receiving device are constituted
Communication connection.
Further, the AP equipment of host and bluetooth constitutes electrical connection.
Further, the distance between AP equipment of two neighboring bluetooth is less than 6m.
Further, the distance between AP equipment of two neighboring WIFI is less than 15m.
Further, vehicle position display screen is located at the top of hand-held movable signal receiving device.
Further, radio transmitting device is located at the bottom of hand-held movable signal receiving device.
Further, signal strength compares device between vehicle position display screen and radio transmitting device.
Further, time difference measuring device is between vehicle position display screen and radio transmitting device.
Further, time difference measuring device is located at signal strength and compares between device and radio transmitting device.
Further, signal strength compares device between vehicle position display screen and time difference measuring device.
The setting accuracy of indoor garage positioning system provided by the utility model is high and stable signal transmission is strong.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model indoor garage positioning system；
Fig. 2 is the schematic diagram of the hand-held movable signal receiving device of indoor garage positioning system in Fig. 1；
Fig. 3 is the schematic diagram of bluetooth positioning.
Specific embodiment
Specific introduce is made to the utility model below in conjunction with the drawings and specific embodiments.
As shown in Figure 1 to Figure 2, indoor garage is divided into multiple garage regions by a kind of indoor garage positioning system 100,
Multiple parking stalls are equipped in each garage region, indoor garage positioning system 100 includes: the garage area in garage region where record has
The AP equipment 101 of the WIFI of location information domain, record have the AP equipment 102 of the bluetooth of parking stall data information, hold movable signal
The host 109 of the AP equipment 102 of receiving device 103 and control bluetooth；It is respectively arranged with a WIFI's in each garage region
AP equipment 101；The AP equipment 102 of multiple bluetooths is respectively arranged in each garage region；Hand-held movable signal receiving device 103
Include: the measuring device 105 for measuring WIFI signal intensity value, hand-held move is judged according to the intensity of the multiple WIFI signals detected
The signal strength in the garage region where dynamic signal receiver 103 compares device 106, receives Bluetooth signal and calculating detects
Multiple bluetooth signal intensities in strongest two Bluetooth signals receiving time difference time difference measuring device 107, signal is strong
Spend the garage area information of the judgement of comparison unit 106, the WIFI signal intensity value that measuring device 105 measures and time difference measuring dress
The time difference for setting 107 measurements is transferred to the radio transmitting device 108 of host 109；Host 109 includes: according to the garage received
Area information and WIFI signal intensity value judge hand-held movable signal receiving device 103 to the AP equipment 101 of the WIFI connected
Distance and control the AP equipment 102 of corresponding bluetooth according to this distance and launch into the position determining device 110 of working condition；It is main
Machine 109 further include: according to the parking stall data of bluetooth equipment corresponding to strongest two Bluetooth signals of the signal strength received
The time difference that information and time difference measuring device 107 detect judges parking stall locating for hand-held movable signal receiving device 103
Position and the bluetooth positioning device 111 that parking stall position is sent to hand-held mobile signal receiver；Hand-held movable signal connects
Receiving unit 103 further include: the vehicle position display screen of the parking stall position of bluetooth positioning device 111 of the display from host 109
104；Host 109 and hand-held movable signal receiving device 103 constitute communication connection.
Specifically, the parking stall data information that the AP equipment 102 of bluetooth records includes more near the AP equipment 102 of bluetooth
A parking stall position, the distance and dimensional orientation of the AP equipment 102 of corresponding parking stall position to bluetooth.Parking stall position is confession under directions vehicle
The position for the parking stall that son is parked.The parking stall position that vehicle position display screen 104 is shown is true after passing through WIFI and bluetooth positioning
The location of fixed hand-held movable signal receiving device 103.
As a preferred embodiment, the AP equipment 102 of host 109 and bluetooth constitutes electrical connection.
As a preferred embodiment, the distance between AP equipment 102 of two neighboring bluetooth is less than 6m.
As a preferred embodiment, the distance between AP equipment 101 of two neighboring WIFI is less than 15m.
As a kind of specific embodiment, vehicle position display screen 104 is located at hand-held movable signal receiving device 103
Top.
As a kind of specific embodiment, radio transmitting device 108 is located at the bottom of hand-held movable signal receiving device 103
Portion.
As a kind of specific embodiment, signal strength compares device 106 and is located at vehicle position display screen 104 and wireless
Between transmitting device 108.
As a kind of specific embodiment, time difference measuring device 106 is located at vehicle position display screen 104 and wireless biography
Between defeated device 108.
As a kind of specific embodiment, the signal strength that time difference measuring device 106 is located at compares device 106 and wireless
Between transmitting device 108.
As a kind of specific embodiment, signal strength compares device 106 and is located at vehicle position display screen 104 and time
Between poor measurement device 107.
Working principle: when vehicle drives into garage, measuring device 105 measures WIFI signal intensity value.Signal strength compares
Device 106 judges the strongest WIFI signal of signal strength according to the intensity of the multiple WIFI signals detected, strong according to signal
Spend the AP equipment 101 that the WIFI for the garage zone position information for having place garage region is recorded corresponding to strongest WIFI signal
It determines the garage zone position information where hand-held movable signal receiving device 103, then will be believed by radio transmitting device 108
Garage zone position information where number strongest WIFI signal of intensity and hand-held movable signal receiving device 103 is uploaded to host
109.The position determining device 110 of host 109 is moved according to garage area information and WIFI signal the intensity value judgement received is hand-held
Dynamic signal receiver 103 to the strongest WIFI of WIFI signal intensity connected correspond to WIFI AP equipment 101 distance simultaneously
The AP equipment 102 for controlling the bluetooth for being in respective distance with the AP equipment 101 of WIFI according to this distance launches into working condition.
The mode of traditional bluetooth positioning, needs the AP equipment of all bluetooths being in working condition.
The AP equipment that indoor garage positioning system described in Fig. 1 does not need all bluetooths is in work shape
State, i.e., only the AP equipment of the bluetooth of part enters working condition under the control of host, and the AP equipment of other bluetooths is in
Dormant state can reduce energy loss, and the AP equipment for the bluetooth opened is less able to convenient hand-held movable signal receiving device
Corresponding Bluetooth signal is received faster.
Time difference measuring device 107 receives Bluetooth signal and detects strongest two indigo plant from multiple bluetooth signal intensities
Then tooth signal calculates strongest two Bluetooth signals received time difference, then will be strongest by radio transmitting device 108
Two Bluetooth signals and strongest two Bluetooth signals received time difference are uploaded to host 109.111 basis of bluetooth positioning device
The parking stall data information of bluetooth equipment corresponding to strongest two Bluetooth signals received and strongest two bluetooths letter
Number received time difference judges parking stall position locating for hand-held movable signal receiving device 103 and sets the reception of hand-held movable signal
Parking stall location information locating for standby 103 is sent to hand-held mobile signal receiver 103.Hand-held mobile signal receiver
103 show that parking stall location information locating for hand-held movable signal receiving device 103 is read for user by vehicle position display screen 104
It takes.
When the vehicle is running, it holds movable signal receiving device 103 and is placed on driver at one's side；Stop when vehicle enters the room
When parking lot, hand-held movable signal receiving device 103 initially enters working condition when receiving WIFI signal；Hand-held movable signal
The memory that can incude traveling state of vehicle is equipped in receiving device 103.When vehicle stops into parking stall and stops storage when driving
The positioning device of bluetooth at the moment 111 for sensing that vehicle stops travelling is sent to hand-held movable signal receiving device 103 by device
The parking stall location information of vehicle parking is recorded.Vehicle is stopped the parking stall location information recorded when driving and uploaded by memory
It is read to vehicle position display screen 104 for user.Simultaneous memory controls hand-held movable signal receiving device 103 and stops working.
When needing to be positioned again, user can reset hand-held movable signal receiving device 103 to realize repositioning.
The position determining device 110 of host 109 is according to WIFI signal intensity to the hand-held movable signal receiving device of judgement to institute
The Computing Principle of the distance of the AP equipment 101 of the WIFI of connection is as follows:
The decaying of WIFI signal is to meet mathematical model with propagation distance, and average received signal power is with the logarithm of distance
Decaying.Indoor log-distance path loss model PtMeet:
Wherein, PtFor the transmission power of transmitting node；Pt(d0) it is path loss after unit；D arrives for reference mode
The distance of anchor point, unit are m；d0For unit distance, value 1m；X0For standard deviation, range be 4 to 10 mean value be 0 height
This random number；N is signal decay factor, and range is 2 to 4.
WIFI is propagated has the loss of energy intensity in the process, and energy intensity loss and propagation distance meet number
Relationship, positioning node measure the intensity of the transmitting radio of reference mode, convert communication distance, base for radio strength
In the expression formula of WIFI signal intensity are as follows:
Wherein RSSI is signal strength indication.According to formula it is found that as long as positioning node witness mark is transmitted signals to and reached
When signal strength RSSI value can be obtained by the communication distance d between node.
The bluetooth positioning device 111 of host 109 judges hand-held movable signal according to the time difference that two Bluetooth signals reach
The Computing Principle of parking stall position locating for receiving device 103 is as follows:
Bluetooth localization method is the method (TDOA) based on signal arrival time difference, and mensuration basic step can divide three steps:
Firstly, measuring the signal arrival time difference that two receiving antennas receive；Secondly, by calculate by the time difference be converted into away from
From, and bring Hyperbolic Equation into, form the equation group of simultaneous；Finally, the solution of solve system of equation, completes location Calculation.
Hyp feature is utilized in localization method based on TDOA: the difference of the distance of point on hyperbola to bifocal is
Definite value, principle are as shown below.
X as shown in Figure 3 is tested point, and A, B, C are respectively hyp focus, d be hyperbolic focus to tested point away from
From.The difference of distance of Bluetooth signal point to two hyp focuses may be expressed as:
d21=d2-d1=(t2-t0)c-(t1-t0) c=(t2-t1) c formula 1
Formula 1 and 2 simultaneous of formula can be obtained:
In formula
Above formula expansion can be obtained:
It willArrangement can obtain:
It is organized into matrix form again are as follows:
Hx=d1c+r
In formula,
Arrangement can obtain:
X=d1H-1c+H-1r
X value is the coordinate of tested point.
The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry
It should be appreciated that above-described embodiment does not limit the utility model in any form, it is all by the way of equivalent substitution or equivalent transformation
Technical solution obtained, all falls in the protection scope of the utility model.
Claims (10)
1. indoor garage is divided into multiple garage regions, is equipped in each garage region more by a kind of indoor garage positioning system
A parking stall, which is characterized in that the indoor garage positioning system includes: the garage zone position in garage region where record has
The AP equipment of the WIFI of breath, record have the AP equipment of the bluetooth of parking stall data information, hold movable signal receiving device and control
The host of the AP equipment of the bluetooth；The AP equipment of the WIFI is respectively arranged in each garage region；Each garage
The AP equipment of multiple bluetooths is respectively arranged in region；The hand-held movable signal receiving device includes: measurement WIFI letter
The measuring device of number intensity value, judges the hand-held movable signal receiving device according to the intensity of the multiple WIFI signals detected
The signal strength in the garage region at place compares device, receives Bluetooth signal and calculates in the multiple bluetooth signal intensities detected
The signal strength is compared the garage of device judgement by the time difference measuring device of strongest two Bluetooth signals receiving time difference
The time difference of area information, the WIFI signal intensity value of measuring device measurement and time difference measuring device measurement is transferred to institute
State the radio transmitting device of host；The host includes: to be sentenced according to the garage area information and WIFI signal intensity value that receive
The distance for AP equipment of the hand-held movable signal receiving device to the WIFI connected of breaking and according to this distance control are corresponding
The AP equipment of bluetooth launches into the position determining device of working condition；The host further include: according to the signal strength received
The parking stall data information and the time difference measuring device of bluetooth equipment corresponding to strongest two Bluetooth signals detect
Time difference judge parking stall position locating for the hand-held movable signal receiving device and be sent to parking stall position described hand-held
The bluetooth positioning device of formula movable signal receiving device；The hand-held movable signal receiving device further include: display is from described
The vehicle position display screen of the parking stall position of the bluetooth positioning device of host；The host and the hand-held movable signal connect
Receiving unit constitutes communication connection.
2. indoor garage positioning system according to claim 1, it is characterised in that: the host and the AP of the bluetooth are set
It is standby to constitute electrical connection.
3. indoor garage positioning system according to claim 1, it is characterised in that: the AP equipment of the two neighboring bluetooth
The distance between be less than 6m.
4. indoor garage positioning system according to claim 1, it is characterised in that: the AP equipment of the two neighboring WIFI
The distance between be less than 15m.
5. indoor garage positioning system according to claim 1, it is characterised in that: the vehicle position display screen is located at institute
State the top of hand-held movable signal receiving device.
6. indoor garage positioning system according to claim 5, it is characterised in that: the radio transmitting device is located at described
The bottom of hand-held movable signal receiving device.
7. indoor garage positioning system according to claim 1, it is characterised in that: the signal strength compares device and is located at
Between the vehicle position display screen and the radio transmitting device.
8. indoor garage positioning system according to claim 1, it is characterised in that: the time difference measuring device is located at institute
It states between vehicle position display screen and the radio transmitting device.
9. indoor garage positioning system according to claim 1, it is characterised in that: the time difference measuring device is located at institute
Signal strength is stated to compare between device and the radio transmitting device.
10. indoor garage positioning system according to claim 1, it is characterised in that: the signal strength compares device position
Between the vehicle position display screen and the time difference measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820618874.7U CN208422120U (en) | 2018-04-27 | 2018-04-27 | Indoor garage positioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820618874.7U CN208422120U (en) | 2018-04-27 | 2018-04-27 | Indoor garage positioning system |
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| Publication Number | Publication Date |
|---|---|
| CN208422120U true CN208422120U (en) | 2019-01-22 |
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ID=65116682
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820618874.7U Expired - Fee Related CN208422120U (en) | 2018-04-27 | 2018-04-27 | Indoor garage positioning system |
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| Country | Link |
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| CN (1) | CN208422120U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109920257A (en) * | 2019-04-09 | 2019-06-21 | 北京马尔马拉科技有限公司 | Internet intelligent vehicles management method |
| CN110933631A (en) * | 2019-12-03 | 2020-03-27 | 浙江科技学院 | Indoor positioning method based on WIFI position fingerprint |
-
2018
- 2018-04-27 CN CN201820618874.7U patent/CN208422120U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109920257A (en) * | 2019-04-09 | 2019-06-21 | 北京马尔马拉科技有限公司 | Internet intelligent vehicles management method |
| CN110933631A (en) * | 2019-12-03 | 2020-03-27 | 浙江科技学院 | Indoor positioning method based on WIFI position fingerprint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 Termination date: 20200427 |
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| CF01 | Termination of patent right due to non-payment of annual fee |