CN107749173A - A kind of more ground magnetic chip parking space detector - Google Patents
A kind of more ground magnetic chip parking space detector Download PDFInfo
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- CN107749173A CN107749173A CN201710931924.7A CN201710931924A CN107749173A CN 107749173 A CN107749173 A CN 107749173A CN 201710931924 A CN201710931924 A CN 201710931924A CN 107749173 A CN107749173 A CN 107749173A
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- magnetic chip
- ground magnetic
- car
- parking stall
- chip
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
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- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses more than one kind magnetic chip parking space detector, its technical characterstic are:Including at least two ground magnetic chips, CPU module, power management module, temperature sensor and wireless communication module, power management module and CPU module, magnetic chip, temperature sensor, wireless communication module be connected and be its power supply, CPU module with magnetic chip, temperature sensor and wireless communication module be connected;Certain distance is separated between ground magnetic chip;More ground magnetic chip parking stall measure comprehensive descision unit is installed in CPU module to be used to improve parking stall measure precision.Present invention increase ground magnetic chip in a set of geomagnetic parking stall detection means replaces two sets of geomagnetic parking stall detection means, a set of detector housing, a set of battery, a set of central processing unit, a set of wireless device and a set of temperature sensor are shared by least two ground magnetic chips, save cost of manufacture more than 50%, efficiency more than 50% is improved, improves the market competitiveness more than 200%.
Description
Technical field
The invention belongs to parking position detection technique field, especially a kind of more ground magnetic chip parking space detector.
Background technology
At present, can be proved by practice:Two geomagnetic parking stall detectors are installed on each parking stall and used in parking lay-by
It is a very effective method to solve parking stall measure precision problem.The reason is that use two parking space detectors can be with
Overcome using limitation existing for a parking space detector:Using a parking space detector, whether original state from without car to
Have car judgement or original state from there is car to the judgement without car, respective blind spot or dead point all be present, for example, original state
For without car to the judgement for having car, because storing cycle disappears on a little geomagnetism detecting zero is low, cause obviously there is car also to detect on parking stall
Go out no car;For another example, original state is caused to geomagnetic sensor from there is car to the judgement without car because detector cell is magnetized
Interference, is also judged as there is car even if on parking stall without car.
Prior art uses solves the problems, such as above blind spot and dead point in each parking stall two parking space detectors of installation.Example
Such as the patent No. 201410423804.2, patent name:A kind of parking stall measure synthetic determination method, the patent are used in each parking
Two parking space detectors of position installation, two parking space detectors apart from the distance of 0.5 to 1 meter of parking stall central point method, with wherein
The mistake that one detector corrects another detector achieves good effect.
Although using the method for two geomagnetic parking stall detectors of installation, its precision can reach 99.9% above, however, by
It is two sets of independent devices in two detectors, needs civil engineering to be digged pit for each detector before use pre-buried, if each
Parking stall increases a detector, and the human cost and man-hour when it is constructed necessarily increase one times;The maintenance cost of operator increases
One times, such as the bad weather such as annual rainy season and snowy day are added, attendant will carry out accuracy of detection to each detector and examine
Disconnected and battery life diagnosis, because each parking stall increases the cost of labor of a detector, its maintenance and attendant
Also one times is necessarily correspondingly increased;Because detector number is doubled, cause the work of producers, tester's production and test
Measure and be also doubled, cost of labor also proportional increase.
Problem above is if the demand of small lot project can also endure, and for large batch of project demands, such as
For the at most tens of thousands of individual parking stall measure node demands of whole city, due to development cost, construction cost, product cost all therefore and
One times is added, only according to this point, has largely slackened the competitiveness of product in market:Though product is good, operator
It may feel too far behind to catch up due to cost issues, developer is also due to maintenance cost and cost of manufacture add is twice and feels
Unable to do what one wishes, therefore, reducing the cost of manufacture of product just turns into new bottleneck problem.
The content of the invention
The present invention in view of the shortcomings of the prior art, proposes a kind of more ground magnetic chip parking space detector, to solve existing skill
Art causes cost of manufacture and maintenance cost, the purchase of operator of developer due to installing two detectors on each parking stall
Cost doubles the problem of above.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of more ground magnetic chip parking space detector, including at least two ground magnetic chips, CPU module, power management
Module, temperature sensor and wireless communication module, power management module and CPU module, magnetic chip, TEMP
Device, wireless communication module are connected and are its power supply, CPU module and ground magnetic chip, temperature sensor and wireless telecommunications
Module is connected;Certain distance is separated between described ground magnetic chip;More ground magnetic chip car is installed in CPU module
Position detection comprehensive descision unit is used to improve parking stall measure precision.
The distance between described ground magnetic chip is not less than 5 centimetres.
Described more ground magnetic chip parking stall measure comprehensive descision unit includes data acquisition unit, has car judging unit, nothing
Car judging unit, zero point correct unit;The data acquisition unit receive that at least two ground magnetic chip synchronizations send to
Value;It is described have car judging unit be used for from original state magnetic chip be no car vector value to one of them for have car to
The judgement of value;It is described that to be used for from original state magnetic chip without car judging unit be to have the car vector value to be to one of them
Judgement without car vector value;Described zero point corrects unit and is used to update geomagnetism detecting zero point value.
Advantages of the present invention effect
The present invention in a set of geomagnetic parking stall detection means by setting at least two ground magnetic chips to replace two sets of earth magnetism cars
Level detecting apparatus, share a set of detector housing by least two ground magnetic chips, share a set of battery, shared a set of centre
Device is managed, a set of wireless device is shared, shares a set of temperature sensor, existing design scheme is not only realized and (pacifies in each parking stall
Fill two parking space detectors) repertoire, also save cost of manufacture more than 50%, improve efficiency more than 50%, improve market
Competitiveness more than 200%.
Brief description of the drawings
Fig. 1 is the present invention more ground magnetic chip parking space detector circuit block diagram.
Embodiment
The present invention is realized based on following design principle:
1st, geomagnetic parking stall detector include ground magnetic chip (geomagnetic sensor), power supply, central processing unit, temperature sensor,
Wireless communication module.Wherein, only magnetic chip (geomagnetic sensor) because place physical location is apart from the remote of surrounding high-intensity magnetic field
Closely or place physical location and vehicle relative position difference, cause battery to be magnetized or because " station " geomagnetism detecting zero supports
Disappear a little upper and detection mistake occurs, and it is not sensing unit for high-intensity magnetic field or the compensation point of geomagnetism detecting zero in his part.
2nd, experience test shows:Ensureing two earth magnetism chip chambers in the case of at least 5 centimetres, two ground magnetic chips are same
When be magnetized or the probability " stood " simultaneously on the compensation point of geomagnetism detecting zero is almost without and two ground magnetic chip (
Magnetic Sensor) one of them is magnetized and another is not magnetized or one of station is on the compensation point of geomagnetism detecting zero
And situation of another station on non-zero compensation point is recurrent.
3rd, 2 points based on more than, on the premise of two ground magnetic chip required distances are met, two certain physics in interval
The ground magnetic chip of position is put into a geomagnetic parking stall detector, and other such as power supply, centre, temperature sensor, channel radio
It is feasible that news module can share in a detector.
4th, due to added inside geomagnetism detecting device one ground magnetic chip and also be limited to two ground magnetic chips between distance not
5 centimetres can be less than, so, the volume of the present invention more ground magnetic chip parking space detector is relative to individually magnetic chip detector volume
Necessarily increase, and the diameter of more ground magnetic chip parking space detector can not be less than 5 centimetres.
5th, the majority of more geomagnetism detecting devices of the present invention more ground magnetic chip (geomagnetic sensor) detection method and prior art
Determining method is entirely two kinds of determination methods, and most determining methods of the latter, which must be that quantity is more than half, just may determine that, namely:Existing skill
The quantity of its detector of art must be that odd number can just be judged, and the bright ground magnetic chip of this law can be at least two (this
The quantity of invention ground magnetic chip can be even number), when wherein at least 1 (or respectively accounting for 50%) the vector value of magnetic chip exceedes
Can determine whether during threshold value, and documents are to sentence for the testing result that 50% is respectively accounted in the case of even number for detector
Disconnected.
Based on above design principle, the invention discloses more than a kind of magnetic chip parking space detector.As shown in figure 1, this hair
Bright more ground magnetic chip parking space detector includes at least two ground magnetic chips, CPU module, power management module, temperature
Sensor and wireless communication module, power management module and CPU module, two ground magnetic chips, temperature sensor, nothings
Line communication module is connected and is that it is powered, CPU module and two ground magnetic chips, temperature sensor and wireless telecommunications
Module is connected,
At least 5 centimetres of the distance between at least two ground magnetic chip.This is described as follows:
Firstth, more ground magnetic chip parking space detector of the invention, its installation site are only required installed in current parking stall,
It is not especially limited.In fact, Detection results are not even interfered with yet installed in parking stall central point, and in actual use, 90%
Parking space detector above is installed in parking stall central point, although installed in parking stall central point not as being arranged close to two wheel
Local communication effect it is more preferable, but be also recognized and continue always using this conventional method.
Secondth, at least 5 centimetres of interval, this numerical value obtain by further experiment between two ground magnetic chips,
It is a test empirical value.The patent No. of earlier application of the present invention:201210410977.1, patent name:A kind of High-precision vehicle
The detection method of position detecting system, the consideration of communication effect was mainly based upon at that time, two detectors were arranged close to as far as possible
In place of headstock and the tailstock, it is 1 meter to 3 meters to cause the distance between two detectors, is 0.5 meter to 1.5 apart from parking stall central point
Rice.The ground magnetic chip of two detectors is arranged in same detector by the present invention, and first have to solve is two ground magnetic cores
Short distance problem between piece, because only that the beeline between setting them could be so that detector overall volume reaches
It is minimum.Drawn by repetition test:When at least 5 centimetres of interval between two ground magnetic chips, two earth magnetism will not occur
Chip simultaneously be magnetized or two ground magnetic chips and meanwhile stand to the compensation point of geomagnetism detecting zero situation, therefore, holding two ground
The interval that at least 5 centimetres of magnetic chip, the mistake of the detected value of another can be corrected with the detected value of one of them.
On more ground, the CPU module of magnetic chip parking space detector is provided with more ground magnetic chip parking stall measure synthesis and sentenced
Disconnected unit is used for solving parking stall measure precision problem.Described more ground magnetic chip parking stall measure comprehensive descision unit is adopted including data
Collection unit, there is car judging unit, correct unit without car judging unit, zero point;The data acquisition unit receives two ground magnetic cores
The vector value that piece synchronization is sent;It is described have car judging unit be used for from two ground magnetic chips of original state be no car to
Value is the judgement for having car vector value to one of them;Described is used for from two ground magnetic chips of original state without car judging unit
Be have car vector value to one of them be the judgement without car vector value;Described zero point corrects unit and is used to update geomagnetism detecting
Zero point value.
When the ground of original state two magnetic chips be have car vector value to one of them for without car vector value when, with the present invention
Method then judge current parking stall for without car, while that ground magnetic chip for the car vector value that judges not change, remain as
For the chip being magnetized, to the chip being magnetized, by the use of current vector value as the new geomagnetism detecting zero point value of the ground magnetic chip,
This is renewal geomagnetism detecting zero point value.
The method that more ground magnetic chip parking space detector of the invention carries out parking stall measure is as follows:
Step 1:At least two ground magnetic chips are installed inside a parking space detector, the distance between two ground magnetic chips
At least 5 centimetres;
Step 2:At least two ground magnetic chips send ground magnetic chip to central processing unit simultaneously inside same parking space detector
Vector value;
Step 3:For central processing unit using there is car decision method to carry out car judgement, described have the car decision method to be:If
When at least two ground magnetic chip vector values for judging current parking stall original state are without car state vector value, then when at least 50%
Geomagnetic parking stall sensor be changed into from without car vector value after having car vector value, then judge current parking stall to there is car;
Step 4:Parking stall measure server uses to carry out judging that the no car owner will the side of judgement without car without car decision method
Method:When judging the vector value of the ground magnetic chip of original state at least two for having car state, then when at least more than 50% earth magnetism
Chip from have car vector value changes be without car vector value after, then judge current parking stall for without car.
It is emphasized that embodiment of the present invention is illustrative, rather than it is limited, therefore present invention bag
Include and be not limited to embodiment described in embodiment.
Claims (3)
- A kind of 1. more ground magnetic chip parking space detector, it is characterised in that:Including at least two ground magnetic chips, central processing unit mould Block, power management module, temperature sensor and wireless communication module, power management module and CPU module, magnetic core Piece, temperature sensor, wireless communication module are connected and are its power supply, CPU module and ground magnetic chip, TEMP Device and wireless communication module are connected;Certain distance is separated between described ground magnetic chip;It is provided with CPU module More ground magnetic chip parking stall measure comprehensive descision unit is used to improve parking stall measure precision.
- A kind of 2. more ground magnetic chip parking space detector according to claim 1, it is characterised in that:Between described ground magnetic chip Distance be not less than 5 centimetres.
- A kind of 3. more ground magnetic chip parking space detector according to claim 1 or 2, it is characterised in that:Described more earth magnetism Chip parking stall measure comprehensive descision unit includes data acquisition unit, has car judging unit, corrects list without car judging unit, zero point Member;The data acquisition unit receives the vector value that at least two ground magnetic chip synchronizations are sent;Described has car to judge list Member be used for from original state magnetic chip be no car vector value to one of them be the judgement that has car vector value;It is described without car Judging unit be used for from original state magnetic chip be have car vector value to one of them be the judgement without car vector value;It is described Zero point correct unit be used for update geomagnetism detecting zero point value.
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CN201710931924.7A CN107749173B (en) | 2017-10-10 | 2017-10-10 | Many earth magnetism chip parking stall detector |
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CN201710931924.7A CN107749173B (en) | 2017-10-10 | 2017-10-10 | Many earth magnetism chip parking stall detector |
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CN107749173B CN107749173B (en) | 2019-12-31 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112162268A (en) * | 2020-08-19 | 2021-01-01 | 浙江创力电子股份有限公司 | Geomagnetic parking space detector and operation method thereof |
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CN101807350A (en) * | 2010-03-24 | 2010-08-18 | 天津信电科技发展有限公司 | Method for improving accuracy of geomagnetic parking stall detector |
CN102930741A (en) * | 2012-10-24 | 2013-02-13 | 无锡普智联科高新技术有限公司 | High-precision stall detection system and method |
WO2013082786A1 (en) * | 2011-12-08 | 2013-06-13 | 无锡米兰磁传感网络有限公司 | Dual-mode vehicle detection sensor |
CN103942965A (en) * | 2014-04-30 | 2014-07-23 | 杭州百控科技有限公司 | Geomagnetic vehicle detector |
CN104200701A (en) * | 2014-08-26 | 2014-12-10 | 刘征 | Parking space detection comprehensive judgment method |
CN104867355A (en) * | 2015-05-08 | 2015-08-26 | 无锡普智联科高新技术有限公司 | Device and method thereof for solving internal magnetization problem of geomagnetic parking spot detector |
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101807350A (en) * | 2010-03-24 | 2010-08-18 | 天津信电科技发展有限公司 | Method for improving accuracy of geomagnetic parking stall detector |
WO2013082786A1 (en) * | 2011-12-08 | 2013-06-13 | 无锡米兰磁传感网络有限公司 | Dual-mode vehicle detection sensor |
CN102930741A (en) * | 2012-10-24 | 2013-02-13 | 无锡普智联科高新技术有限公司 | High-precision stall detection system and method |
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CN104200701A (en) * | 2014-08-26 | 2014-12-10 | 刘征 | Parking space detection comprehensive judgment method |
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Cited By (1)
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Effective date of registration: 20200731 Address after: Office 2501g, Yuefeng building, No.2, Sanyuan Road, Hongfu community, Nancheng street, Dongguan City, Guangdong Province Patentee after: DONGGUAN PAMA INTELLIGENT PARKING SERVICE Co.,Ltd. Address before: 518000 Guangdong province Shenzhen City Xili Nanshan District University City sangtai building block A room 503 Patentee before: SHENZHEN PUZHI LIANKE ROBOT TECHNOLOGY Co.,Ltd. |
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