CN103106809B - Detecting method and device for parking car tracking positioning - Google Patents
Detecting method and device for parking car tracking positioning Download PDFInfo
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- CN103106809B CN103106809B CN201210593533.6A CN201210593533A CN103106809B CN 103106809 B CN103106809 B CN 103106809B CN 201210593533 A CN201210593533 A CN 201210593533A CN 103106809 B CN103106809 B CN 103106809B
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Abstract
The invention discloses a detecting method and a detecting device for parking car tracking positioning, and relates to the fields of field bus technology, wireless sensor network technology and car detection. The detecting method includes that the detecting device for the parking car tracking positioning detects a geomagnetism value of a parking lot at fixed time according to a set geomagnetism detection period, and uses the detected geomagnetism value to substract a car-free average value. When difference is smaller than a set car-occupied minimum varying parameter, that no car is parking in the parking lot is confirmed. When the difference is greater than the set car-occupied minimum varying parameter, that a car is parking in the parking lot is confirmed, and the detected geomagnetism value, a car-occupied judging result and identity (ID) of the device are sent out. The invention further discloses the detecting device for parking car tracking positioning. According to the technical scheme of the detecting method and the detecting device for the parking car tracking positioning, the reliability of car position detection and the reliability of car passing direction detection are improved.
Description
Technical field
The present invention relates to field bus technique, wireless sensor network technology, information dissemination technology, embedded software hardware technology, vehicle detection and management domain, particularly a kind of vehicle tracking position sensing scheme.
Background technology
Current traffic problems have become metropolitan common fault, the growth at full speed of automobile pollution make trip and parking problem increasingly serious, the low trip quality having had a strong impact on people of parking difficulty efficiency.The vehicle management system in parking lot faces increasingly serious test.
Now managing system of car parking on the market, can only come in and go out by management vehicle, can not effective management vehicle, there is a lot of deficiency.Car plate image identification system is installed in part managing system of car parking gateway, can identify the vehicle number entering parking lot, but still not know this storing cycle there, cannot guide park empty parking space.
Current parking lot detection node adopts independent single shaft, twin shaft or three axle magnetometric sensors.Parking stall due to vehicle varies in size different with direction, an independent sensor be difficult to judge vehicle through or with or without, and be difficult to differentiate the magnetic interference of adjacent parking stall, cause to vehicle through or with presence or absence of judge by accident.
Summary of the invention
Technical matters to be solved by this invention is, provides a kind of parking lot vehicle tracking position finding and detection method and device, with improve vehicle location detect and vehicle through the reliability of angle detecting.
In order to solve the problems of the technologies described above, the invention discloses a kind of parking lot vehicle tracking position finding and detection method, comprising:
Parking lot vehicle tracking locating and detecting device is according to the geomagnetism detecting cycle of setting, timing detects the earth magnetism numerical value on parking stall, with the earth magnetism numerical value that detects of timing deduct record without car mean value, what be less than setting when this difference has car minimum change parameter, then determine now on parking stall without car, what be greater than setting when this difference has car minimum change parameter, determine now there is car on parking stall, by the earth magnetism numerical value now detected, have the mark of car judged result and this device (ID) to send.
Preferably, in said method, described parking lot vehicle tracking locating and detecting device by the earth magnetism numerical value detected, have the ID of car judged result and this parking lot vehicle tracking locating and detecting device to send finger:
Described parking lot vehicle tracking locating and detecting device by CAN or wireless mode by the earth magnetism numerical value detected, have the ID of car judged result and this device to be sent to tracking location, parking lot relaying, then be sent to gateway by relaying.
Preferably, in said method, described parking lot vehicle tracking locating and detecting device adopts the earth magnetism numerical value on a single shaft and a twin shaft magnetometric sensor combine detection parking stall, wherein, uniaxial magnetic force snesor upward, twin shaft magnetometric sensor is reported to the leadship after accomplishing a task with single shaft 45 degree respectively, and three axles are in same plane.
Preferably, said method also comprises:
The magnitude of voltage of Timing measurement and the ID of this device, according to the voltage of voltage detecting cycle this device of Timing measurement of setting, when the voltage of Timing measurement is lower than the low-voltage alarming value of setting, then send by described parking lot vehicle tracking locating and detecting device.
Preferably, said method also comprises:
When described parking lot vehicle tracking locating and detecting device to be determined on parking stall without car, start Low-power-consumptiodormancy dormancy and control, described parking lot vehicle tracking locating and detecting device enters dormant state.
The invention also discloses a kind of parking lot vehicle tracking locating and detecting device, comprising:
Geomagnetic sensor unit, according to the geomagnetism detecting cycle of setting, timing detects the earth magnetism numerical value on parking stall;
CPU (central processing unit), with the earth magnetism numerical value that detects of timing deduct record without car mean value, what be less than setting when this difference has car minimum change parameter, then determine now on parking stall without car, what be greater than setting when this difference has car minimum change parameter, determines now there is car on parking stall;
Communication unit, when CPU (central processing unit) determines parking stall there is car, by the earth magnetism numerical value detected, has the mark of car judged result and this device (ID) to send.
Preferably, in said apparatus, described communication unit adopts CAN or wireless mode by the earth magnetism numerical value detected, has the ID of car judged result and this device to be sent to tracking location, parking lot relaying, then is sent to gateway by relaying.
Preferably, in said apparatus, described geomagnetic sensor unit, is made up of a single shaft and a twin shaft magnetometric sensor, and wherein, uniaxial magnetic force snesor upward, report to the leadship after accomplishing a task with single shaft 45 degree respectively, and three axles are in same plane by twin shaft magnetometric sensor.
Preferably, said apparatus also comprises voltage measurement unit, wherein:
Described voltage measurement unit, according to the voltage of voltage detecting cycle this device of Timing measurement of setting;
Described CPU (central processing unit), judges that whether the voltage of Timing measurement is lower than the low-voltage alarming value set;
Described communication unit, when the voltage of Timing measurement is lower than the low-voltage alarming value set, sends the magnitude of voltage of Timing measurement and the ID of this device.
Preferably, said apparatus also comprises Low-power-consumptiodormancy dormancy control module, wherein:
Described CPU (central processing unit) is when determining on parking stall without car, and start described Low-power-consumptiodormancy dormancy control module, described Low-power-consumptiodormancy dormancy control module controls this device and enters dormant state.
Technical scheme improve vehicle location detect and vehicle through the reliability of angle detecting.
Embodiment
Fig. 1 (a) is parking lot vehicle tracking detection and localization node apparatus wireless transmission method enforcement figure in the present embodiment;
Fig. 1 (b) is parking lot vehicle tracking detection and localization node apparatus CAN transmission mode enforcement figure in the present embodiment;
Fig. 2 is the structural representation of parking lot vehicle tracking locating and detecting device in this preferred embodiment.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, hereafter will be described in further detail technical solution of the present invention by reference to the accompanying drawings.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine arbitrarily mutually.
Embodiment 1
The present embodiment provides a kind of parking lot tracking position finding and detection method, and the method comprises following operation.
Parking lot vehicle tracking locating and detecting device is according to the geomagnetism detecting cycle of setting, timing detects the earth magnetism numerical value on parking stall, with the earth magnetism numerical value that detects of timing deduct record without car mean value, what be less than setting when this difference has car minimum change parameter, then determine now on parking stall without car, what be greater than setting when this difference has car minimum change parameter, determines now there is car on parking stall, by the earth magnetism numerical value now detected, has the ID of car judged result and this device to send.
Wherein, parking lot vehicle tracking locating and detecting device by CAN or wireless mode by the earth magnetism numerical value detected, have the ID of car judged result and this device to be sent to tracking location, parking lot relaying, then be sent to gateway by relaying.Particularly, when adopting wireless transmission method, the communication interface of parking lot vehicle tracking locating and detecting device is as shown in Fig. 1 (a).When adopting CAN transmission mode, the communication interface of parking lot vehicle tracking locating and detecting device is as shown in Fig. 1 (b).
It should be noted that, in said method, parking lot vehicle tracking locating and detecting device have employed a single shaft and a twin shaft magnetometric sensor combines the mode detecting the earth magnetism numerical value on parking stall.Wherein, uniaxial magnetic force snesor upward, report to the leadship after accomplishing a task with uniaxial magnetic force snesor 45 degree respectively by twin shaft magnetometric sensor.Like this, three axles intersect 45 degree, can detect respectively diagonally forward that parking stall or vehicle pass through, directly over and oblique rear, thus more accurately judgement vehicle through direction.Preferred version is also had to propose, pick-up unit is arranged on the middle on parking stall, this is because the engine of vehicle is the factor that can affect magnetic force, and when pick-up unit is placed in the middle on parking stall, no matter vehicle is parked forward or backwards on parking stall, can ensure that magnetometric sensor has an axle to point to engine direction, accurately detect vehicle, prevent the erroneous judgement of single-axis sensors.
In addition, the low-voltage alarming value of the voltage of Timing measurement and setting according to the voltage of voltage detecting cycle this device of Timing measurement of setting, then can also compare by above-mentioned parking lot vehicle tracking locating and detecting device, determines whether to need to report to the police.Particularly, when the voltage of Timing measurement is lower than the low-voltage alarming value of setting, just needs to report to the police, now, the magnitude of voltage of Timing measurement and the ID of this device are sent and namely wants.
Inventor also considers and saves the demand of power consumption, therefore proposing parking lot vehicle tracking locating and detecting device when determining on parking stall without car, can start Low-power-consumptiodormancy dormancy control, entering dormant state with control device.
Also be noted that parking lot vehicle tracking locating and detecting device can be arranged on inner part of parking lot.Pick-up unit is arranged on carriage way, can be used for vehicle and to track location.Pick-up unit is arranged on parking stall, then can be used for detecting stoppage of vehicle.
Embodiment 2
The present embodiment provides a kind of parking lot vehicle tracking locating and detecting device, at least comprises geomagnetic sensor unit, CPU (central processing unit) and communication unit.
Wherein, geomagnetic sensor unit, according to the geomagnetism detecting cycle of setting, timing detects the earth magnetism numerical value on parking stall;
Preferably, geomagnetic sensor unit adopts a single shaft and a twin shaft magnetometric sensor to combine, and wherein, uniaxial magnetic force snesor upward, report to the leadship after accomplishing a task with single shaft 45 degree respectively, and three axles are in same plane by twin shaft magnetometric sensor.
CPU (central processing unit), with the earth magnetism numerical value that detects of timing deduct record without car mean value, what be less than setting when this difference has car minimum change parameter, then determine now on parking stall without car, what be greater than setting when this difference has car minimum change parameter, determines now there is car on parking stall;
Communication unit, when CPU (central processing unit) determines parking stall there is car, by the earth magnetism numerical value detected, has the ID of car judged result and this device to send.
In the present embodiment, above-mentioned communication unit can adopt CAN or wireless mode by the earth magnetism numerical value detected, have the ID of car judged result and this device to be sent to tracking location, parking lot relaying, then is sent to gateway by relaying.
Except above-mentioned each unit, parking lot vehicle tracking locating and detecting device can also include voltage measurement unit.Now, voltage measurement unit, according to the voltage of voltage detecting cycle this device of Timing measurement of setting; And CPU (central processing unit), judge that whether the voltage of Timing measurement is lower than the low-voltage alarming value set; Communication unit, then, when the voltage of Timing measurement is lower than the low-voltage alarming value set, send the magnitude of voltage of Timing measurement and the ID of this device.
In addition, said apparatus can also comprise Low-power-consumptiodormancy dormancy control module.CPU (central processing unit) is when determining on parking stall without car, and start this Low-power-consumptiodormancy dormancy control module, this Low-power-consumptiodormancy dormancy control module controls this device and enters dormant state.
Particularly, the present embodiment proposes, and above-mentioned CPU (central processing unit) can Further Division be arithmetic processor, parameter storage unit and vehicle detection judging unit again, and now, parking lot vehicle tracking locating and detecting device as shown in Figure 2.
The all or part of step that one of ordinary skill in the art will appreciate that in said method is carried out instruction related hardware by program and is completed, and described program can be stored in computer-readable recording medium, as ROM (read-only memory), disk or CD etc.Alternatively, all or part of step of above-described embodiment also can use one or more integrated circuit to realize.Correspondingly, each module/unit in above-described embodiment can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.The application is not restricted to the combination of the hardware and software of any particular form.
The above, be only preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a parking lot vehicle tracking position finding and detection method, it is characterized in that, the method comprises:
Parking lot vehicle tracking locating and detecting device is according to the geomagnetism detecting cycle of setting, timing detects the earth magnetism numerical value on parking stall, with the earth magnetism numerical value that detects of timing deduct record without car mean value, what be less than setting when this difference has car minimum change parameter, then determine now on parking stall without car, what be greater than setting when this difference has car minimum change parameter, determines now there is car on parking stall, by the earth magnetism numerical value now detected, has the mark ID of car judged result and this device to send;
Wherein, described parking lot vehicle tracking locating and detecting device adopts the earth magnetism numerical value on a single shaft and a twin shaft magnetometric sensor combine detection parking stall; Described uniaxial magnetic force snesor upward, report to the leadship after accomplishing a task with single shaft 45 degree respectively, and three axles are in same plane by described twin shaft magnetometric sensor.
2. the method for claim 1, is characterized in that, described parking lot vehicle tracking locating and detecting device by the earth magnetism numerical value detected, have the ID of car judged result and this parking lot vehicle tracking locating and detecting device to send finger:
Described parking lot vehicle tracking locating and detecting device by CAN or wireless mode by the earth magnetism numerical value detected, have the ID of car judged result and this device to be sent to tracking location, parking lot relaying, then be sent to gateway by relaying.
3. the method for claim 1, is characterized in that, the method also comprises:
The magnitude of voltage of Timing measurement and the ID of this device, according to the voltage of voltage detecting cycle this device of Timing measurement of setting, when the voltage of Timing measurement is lower than the low-voltage alarming value of setting, then send by described parking lot vehicle tracking locating and detecting device.
4. method as claimed in claim 3, it is characterized in that, the method also comprises:
When described parking lot vehicle tracking locating and detecting device to be determined on parking stall without car, start Low-power-consumptiodormancy dormancy and control, described parking lot vehicle tracking locating and detecting device enters dormant state.
5. a parking lot vehicle tracking locating and detecting device, is characterized in that, this device comprises:
Geomagnetic sensor unit, according to the geomagnetism detecting cycle of setting, timing detects the earth magnetism numerical value on parking stall; Described geomagnetic sensor unit is made up of a single shaft and a twin shaft magnetometric sensor, and wherein, described uniaxial magnetic force snesor upward, report to the leadship after accomplishing a task with single shaft 45 degree respectively, and three axles are in same plane by described twin shaft magnetometric sensor; CPU (central processing unit), with the earth magnetism numerical value that detects of timing deduct record without car mean value, what be less than setting when this difference has car minimum change parameter, then determine now on parking stall without car, what be greater than setting when this difference has car minimum change parameter, determines now there is car on parking stall;
Communication unit, when CPU (central processing unit) determines parking stall there is car, by the earth magnetism numerical value detected, has the mark ID of car judged result and this device to send.
6. device as claimed in claim 5, is characterized in that,
Described communication unit adopts CAN or wireless mode by the earth magnetism numerical value detected, has the ID of car judged result and this device to be sent to tracking location, parking lot relaying, then is sent to gateway by relaying.
7. device as claimed in claim 5, it is characterized in that, this device also comprises voltage measurement unit, wherein:
Described voltage measurement unit, according to the voltage of voltage detecting cycle this device of Timing measurement of setting;
Described CPU (central processing unit), judges that whether the voltage of Timing measurement is lower than the low-voltage alarming value set;
Described communication unit, when the voltage of Timing measurement is lower than the low-voltage alarming value set, sends the magnitude of voltage of Timing measurement and the ID of this device.
8. device as claimed in claim 5, it is characterized in that, this device also comprises Low-power-consumptiodormancy dormancy control module, wherein:
Described CPU (central processing unit) is when determining on parking stall without car, and start described Low-power-consumptiodormancy dormancy control module, described Low-power-consumptiodormancy dormancy control module controls this device and enters dormant state.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210593533.6A CN103106809B (en) | 2012-12-31 | 2012-12-31 | Detecting method and device for parking car tracking positioning |
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| CN201210593533.6A CN103106809B (en) | 2012-12-31 | 2012-12-31 | Detecting method and device for parking car tracking positioning |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103606295B (en) * | 2013-10-30 | 2016-03-30 | 中国科学院上海微系统与信息技术研究所 | A kind of Parking-space information detection method |
| CN104637312A (en) * | 2015-03-11 | 2015-05-20 | 南京颐丰益信息技术有限公司 | Geomagnetic parking space detector and geomagnetic parking space detection method |
| CN106251685B (en) * | 2016-08-16 | 2019-03-12 | 湖北民族学院 | Parking space state information collecting device and system |
| CN108734794A (en) * | 2018-05-11 | 2018-11-02 | 深圳市方格尔科技有限公司 | Vehicle berth detection method and device |
| CN108961773B (en) * | 2018-07-05 | 2020-07-10 | 青岛海信网络科技股份有限公司 | Parking space parking state detection method and device |
| CN110599778B (en) * | 2019-09-29 | 2021-03-12 | 深圳市捷顺科技实业股份有限公司 | Working mode switching method and device and ground sensing type vehicle detector |
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| CN201402531Y (en) * | 2009-05-15 | 2010-02-10 | 东莞市帕马智能停车服务有限公司 | WSN-based geomagnetic parking stall detector and geomagnetic parking stall detection system |
| CN102324184B (en) * | 2011-05-27 | 2014-06-04 | 迈锐数据（北京）有限公司 | Vehicle detecting system |
| CN202102594U (en) * | 2011-05-27 | 2012-01-04 | 迈锐数据（北京）有限公司 | Vehicle-detecting device |
| CN202422437U (en) * | 2012-01-17 | 2012-09-05 | 无锡美新物联网科技有限公司 | Wireless management system of parking lot stalls |
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Address after: 100096 Beijing City, Haidian District Xisanqi building materials City Road No. 18 building 4 layer Bestpower Patentee after: Beijing times Polytron Technologies Inc Address before: 100096 Beijing City, Haidian District Xisanqi building materials City Road No. 18 building 4 layer Bestpower Patentee before: Beijing LOIT Technology Co., Ltd. |