CN110379179A - Improve the system and method for earth magnetism vehicle checker Detection accuracy under complex environment - Google Patents
Improve the system and method for earth magnetism vehicle checker Detection accuracy under complex environment Download PDFInfo
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- CN110379179A CN110379179A CN201910705210.3A CN201910705210A CN110379179A CN 110379179 A CN110379179 A CN 110379179A CN 201910705210 A CN201910705210 A CN 201910705210A CN 110379179 A CN110379179 A CN 110379179A
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- mcu
- earth magnetism
- parking stall
- magnetic field
- millimetre
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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
-
- 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
- G08G1/145—Traffic control systems for road vehicles indicating individual free spaces in parking areas where the indication depends on the parking areas
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Traffic Control Systems (AREA)
- Measuring Magnetic Variables (AREA)
Abstract
The invention discloses a kind of systems of earth magnetism vehicle checker Detection accuracy under raising complex environment, including power supply and geomagnetism detecting part;The power supply is battery power supply, and battery uses high-capacity lithium battery, capacity 19Ah, theoretical cruising ability 5 years;The geomagnetism detecting part is made of Hall sensor, MCU and bluetooth module, millimetre-wave radar, the present invention can the interference to other position geomagnetic noise and other signals accurately judged, earth magnetism vehicle checker Detection accuracy under complex environment is improved, earth magnetism vehicle checker practical application value on complex environment road is increased.
Description
Technical field
The present invention relates to earth magnetism vehicle checkers under smart city construction technique field more particularly to a kind of raising complex environment to examine
Survey the system and method for accuracy rate.
Background technique
In the construction of current smart city, earth magnetism vehicle checker has been used widely, the common ground under experimental situation
Magnetic vehicle checker accuracy rate can reach 98% or more, but in complicated location, drive a vehicle more and have oversize vehicle to pass by (visitor
Vehicle, lorry etc.) earth magnetism vehicle checker Detection accuracy is substantially reduced at this time, and there is also adjacent parking stalls to interfere, other frequencies for vehicle checker
The serious problems such as point signal interference, what this complex environment showed on urban area street parking stall and intensive indoor parking position
It is especially apparent.
Summary of the invention
In view of the above-mentioned problems, the invention proposes a kind of sides of earth magnetism vehicle checker Detection accuracy under raising complex environment
Method, is added the parking stall judgement of millimetre-wave radar auxiliary in common earth magnetism vehicle checker, and radar judges that region setting is cured to this parking stall
Range is able to solve the serious problems such as adjacent parking stall interference, other frequency point signal interferences, can accurately also carry out in complex environment
Parking detection, improves Detection accuracy.
The present invention through the following technical solutions to achieve the above objectives:
The system of earth magnetism vehicle checker Detection accuracy under a kind of raising complex environment, including power supply and geomagnetism detecting part;
The power supply is battery power supply, and battery uses high-capacity lithium battery, capacity 19Ah, theoretical cruising ability 5 years;
The geomagnetism detecting part is made of Hall sensor, MCU and bluetooth module, millimetre-wave radar;
The Hall sensor is for monitoring environmental magnetic field variation, to wake up MCU to changes of magnetic field monitoring calculation, to call out
Equipment of waking up provides foundation, also provides judgment basis for subsequent parking stall Parking situation;
In the MCU+ bluetooth module, the data that MCU is used to carry out changes of magnetic field are calculated and are analyzed and determined, bluetooth module
It is used for original state activation and subsequent software upgrading;
The millimetre-wave radar is in changes of magnetic field, by radar to whether there is mobile object progress in the solidification range of parking stall
Judgement enters suspend mode offer judgment basis to continue magnetic field detection to MCU and also be off detection.
Further scheme is whether the millimetre-wave radar auxiliary judgement GEOMAGNETIC CHANGE is caused by interference, and monitoring range needs
This parking stall range is set on software, in GEOMAGNETIC CHANGE first by millimetre-wave radar to the mobile object of this parking stall range into
Then row preliminary judgement is determining whether that continuing MCU continues to monitor calculating to changes of magnetic field.
On the other hand the application provides a kind of above-mentioned system for improving earth magnetism vehicle checker Detection accuracy under complex environment
Detection method, comprising the following steps:
A. short distance activation is carried out using bluetooth after equipment installation, equipment operates normally after activation, and when not working
Independently enter dormant state;
B. when parking stall changes of magnetic field, Hall sensor wakes up MCU, and MCU wakes up millimetre-wave radar, and millimetre-wave radar is in quilt
After wake-up, parking stall range mobile object is detected, if detecting mobile object, vehicle is determined at this time and enters parking stall, ground
The work of magnetic vehicle checker whole process, determines Parking situation;
If c. not detecting mobile object within the scope of parking stall, determine that GEOMAGNETIC CHANGE is interfered for other position or other are dry at this time
It disturbs, earth magnetism vehicle checker interruption of work, goes successively to dormant state, waiting wakes up next time.
The beneficial effects of the present invention are:
The present invention can the interference to other position geomagnetic noise and other signals accurately judged, improve complex environment under
Earth magnetism vehicle checker Detection accuracy increases earth magnetism vehicle checker practical application value on complex environment road.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
In required practical attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the one of the present embodiment
A little embodiments for those of ordinary skill in the art without creative efforts, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is present system structural schematic diagram;
Fig. 2 is the workflow schematic diagram of present system.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, the described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without making creative work it is obtained it is all its
Its embodiment belongs to the range that the present invention is protected.
In any embodiment, as shown in Figure 1, earth magnetism vehicle checker detects accurately under a kind of raising complex environment of the invention
The system of rate, including power supply and geomagnetism detecting part;
The power supply is battery power supply, and battery uses high-capacity lithium battery, capacity 19Ah, theoretical cruising ability 5 years;
The geomagnetism detecting part is made of Hall sensor, MCU and bluetooth module, millimetre-wave radar;
The Hall sensor is for monitoring environmental magnetic field variation, to wake up MCU to changes of magnetic field monitoring calculation, to call out
Equipment of waking up provides foundation, also provides judgment basis for subsequent parking stall Parking situation;
In the MCU+ bluetooth module, the data that MCU is used to carry out changes of magnetic field are calculated and are analyzed and determined, bluetooth module
It is used for original state activation and subsequent software upgrading;
The millimetre-wave radar is in changes of magnetic field, by radar to whether there is mobile object progress in the solidification range of parking stall
Judgement enters suspend mode offer judgment basis to continue magnetic field detection to MCU and also be off detection.
Whether the millimetre-wave radar auxiliary judgement GEOMAGNETIC CHANGE is caused by interference, and monitoring range need to be set on software
This parking stall range carries out preliminary judgement by mobile object of the millimetre-wave radar to this parking stall range first in GEOMAGNETIC CHANGE, so
Determining whether that continuing MCU continues to monitor calculating to changes of magnetic field afterwards.
Present invention also provides a kind of above-mentioned detections for improving the system of earth magnetism vehicle checker Detection accuracy under complex environment
Method, comprising the following steps:
A. short distance activation is carried out using bluetooth after equipment installation, equipment operates normally after activation, and when not working
Independently enter dormant state;
B. when parking stall changes of magnetic field, Hall sensor wakes up MCU, and MCU wakes up millimetre-wave radar, and millimetre-wave radar is in quilt
After wake-up, parking stall range mobile object is detected, if detecting mobile object, vehicle is determined at this time and enters parking stall, ground
The work of magnetic vehicle checker whole process, determines Parking situation;
If c. not detecting mobile object within the scope of parking stall, determine that GEOMAGNETIC CHANGE is interfered for other position or other are dry at this time
It disturbs, earth magnetism vehicle checker interruption of work, goes successively to dormant state, waiting wakes up next time.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Specific technical features described in the above specific embodiments, in not lance
In the case where shield, can be combined in any appropriate way, in order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.Various embodiments of the present invention can be combined randomly, only
Want it without prejudice to thought of the invention, it should also be regarded as the disclosure of the present invention.
Claims (3)
1. a kind of system for improving earth magnetism vehicle checker Detection accuracy under complex environment, which is characterized in that including power supply and earth magnetism
Detection part;
The power supply is battery power supply, and battery uses high-capacity lithium battery, capacity 19Ah, theoretical cruising ability 5 years;
The geomagnetism detecting part is made of Hall sensor, MCU and bluetooth module, millimetre-wave radar;
The Hall sensor, to wake up MCU to changes of magnetic field monitoring calculation, is set for monitoring environmental magnetic field variation to wake up
It is standby that foundation is provided, also judgment basis is provided for subsequent parking stall Parking situation;
In the MCU+ bluetooth module, the data that MCU is used to carry out changes of magnetic field calculate and analyze and determine that bluetooth module is used for
Original state activation and subsequent software upgrading use;
Whether the millimetre-wave radar is in changes of magnetic field, by radar to having mobile object to sentence in the solidification range of parking stall
It is disconnected, enter suspend mode offer judgment basis to continue magnetic field detection to MCU and also be off detection.
2. a kind of system for improving earth magnetism vehicle checker Detection accuracy under complex environment as described in claim 1, which is characterized in that
Whether the millimetre-wave radar auxiliary judgement GEOMAGNETIC CHANGE is caused by interference, and monitoring range need to be set to this parking stall model on software
It encloses, preliminary judgement is carried out by mobile object of the millimetre-wave radar to this parking stall range first in GEOMAGNETIC CHANGE, then in determination
Whether continue MCU and calculating is continued to monitor to changes of magnetic field.
3. a kind of detection side for improving the system of earth magnetism vehicle checker Detection accuracy under complex environment as described in claim 1-2
Method, which comprises the following steps:
A. short distance activation is carried out using bluetooth after equipment installation, equipment operates normally after activation, and autonomous when not working
Into dormant state;
B. when parking stall changes of magnetic field, Hall sensor wakes up MCU, and MCU wakes up millimetre-wave radar, and millimetre-wave radar is being waken up
Afterwards, parking stall range mobile object is detected, if detecting mobile object, is determined with vehicle at this time and enters parking stall, earth magnetism vehicle
The work of device whole process is examined, determines Parking situation;
If c. not detecting mobile object within the scope of parking stall, determine that GEOMAGNETIC CHANGE is interfered for other position or other are interfered, ground at this time
Magnetic vehicle checker interruption of work, goes successively to dormant state, and waiting wakes up next time.
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Cited By (4)
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CN110807947A (en) * | 2019-11-07 | 2020-02-18 | 深圳市方格尔科技有限公司 | Power supply method |
CN111161547A (en) * | 2020-01-21 | 2020-05-15 | 中邮科通信技术股份有限公司 | Vehicle detection system based on NB-IoT combined geomagnetic guidance microwave detection and working method thereof |
CN112097764A (en) * | 2020-09-09 | 2020-12-18 | 杭州中芯微电子有限公司 | Personnel positioning system based on low-frequency trigger mode |
CN113250515A (en) * | 2021-07-01 | 2021-08-13 | 江西省湾流港智能科技有限公司 | Parking spot lock system |
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CN112097764A (en) * | 2020-09-09 | 2020-12-18 | 杭州中芯微电子有限公司 | Personnel positioning system based on low-frequency trigger mode |
CN113250515A (en) * | 2021-07-01 | 2021-08-13 | 江西省湾流港智能科技有限公司 | Parking spot lock system |
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Application publication date: 20191025 |