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 PDF

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Publication number
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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CN
China
Prior art keywords
mcu
earth magnetism
parking stall
magnetic field
millimetre
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910705210.3A
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Chinese (zh)
Inventor
姜联文
寇望东
姜海洋
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Sichuan Changhong Electric Co Ltd
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Sichuan Changhong Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to CN201910705210.3A priority Critical patent/CN110379179A/en
Publication of CN110379179A publication Critical patent/CN110379179A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/042Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/14Traffic control systems for road vehicles indicating individual free spaces in parking areas
    • G08G1/145Traffic 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

Improve the system and method for earth magnetism vehicle checker Detection accuracy under complex environment
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.
CN201910705210.3A 2019-07-31 2019-07-31 Improve the system and method for earth magnetism vehicle checker Detection accuracy under complex environment Pending CN110379179A (en)

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CN201910705210.3A CN110379179A (en) 2019-07-31 2019-07-31 Improve the system and method for earth magnetism vehicle checker Detection accuracy under complex environment

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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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CN102890871A (en) * 2012-10-23 2013-01-23 中国矿业大学 Remote wireless real-time detection system for terrestrial magnetism parking space
CN103258442A (en) * 2013-04-18 2013-08-21 中山市路讯智能交通科技有限公司 Parking space state sensor and parking space state sensing method
CN103390352A (en) * 2012-09-27 2013-11-13 深圳市捷顺科技实业股份有限公司 Terrestrial magnetism carport detector and detecting system
CN106340188A (en) * 2016-09-29 2017-01-18 深圳普智联科机器人技术有限公司 Roadside parking space detection device and detecting method thereof
CN106875733A (en) * 2017-03-17 2017-06-20 南京理工大学 Based on adaptive environment multisensor low-power consumption vehicle detecting system and method
CN106952498A (en) * 2017-05-15 2017-07-14 梁崇彦 A kind of earth magnetism and back wave comprehensive detection device and control mode
CN107146420A (en) * 2017-07-18 2017-09-08 迈锐数据(北京)有限公司 A kind of detection device of parking space state and the detection method of parking space state
CN109118785A (en) * 2018-10-30 2019-01-01 四川长虹电器股份有限公司 Earth magnetism vehicle checker and its control method based on low-power consumption bluetooth
CN208796443U (en) * 2018-08-09 2019-04-26 杭州朗米科技有限公司 A kind of parking stall measure system based on fmcw radar and geomagnetism detecting

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Publication number Priority date Publication date Assignee Title
CN103390352A (en) * 2012-09-27 2013-11-13 深圳市捷顺科技实业股份有限公司 Terrestrial magnetism carport detector and detecting system
CN102890871A (en) * 2012-10-23 2013-01-23 中国矿业大学 Remote wireless real-time detection system for terrestrial magnetism parking space
CN103258442A (en) * 2013-04-18 2013-08-21 中山市路讯智能交通科技有限公司 Parking space state sensor and parking space state sensing method
CN106340188A (en) * 2016-09-29 2017-01-18 深圳普智联科机器人技术有限公司 Roadside parking space detection device and detecting method thereof
CN106875733A (en) * 2017-03-17 2017-06-20 南京理工大学 Based on adaptive environment multisensor low-power consumption vehicle detecting system and method
CN106952498A (en) * 2017-05-15 2017-07-14 梁崇彦 A kind of earth magnetism and back wave comprehensive detection device and control mode
CN107146420A (en) * 2017-07-18 2017-09-08 迈锐数据(北京)有限公司 A kind of detection device of parking space state and the detection method of parking space state
CN208796443U (en) * 2018-08-09 2019-04-26 杭州朗米科技有限公司 A kind of parking stall measure system based on fmcw radar and geomagnetism detecting
CN109118785A (en) * 2018-10-30 2019-01-01 四川长虹电器股份有限公司 Earth magnetism vehicle checker and its control method based on low-power consumption bluetooth

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110807947A (en) * 2019-11-07 2020-02-18 深圳市方格尔科技有限公司 Power supply method
CN110807947B (en) * 2019-11-07 2021-07-02 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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Application publication date: 20191025