CN103179377B - Vehicle monitoring system and method - Google Patents

Vehicle monitoring system and method Download PDF

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Publication number
CN103179377B
CN103179377B CN201110440660.8A CN201110440660A CN103179377B CN 103179377 B CN103179377 B CN 103179377B CN 201110440660 A CN201110440660 A CN 201110440660A CN 103179377 B CN103179377 B CN 103179377B
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China
Prior art keywords
longitude
vehicle
latitude
monitoring system
parking spot
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Expired - Fee Related
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CN201110440660.8A
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Chinese (zh)
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CN103179377A (en
Inventor
林文景
尤珈斯
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Quanta Storage Inc
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Quanta Storage Inc
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Abstract

A kind of vehicle monitoring system and method, integrate gps system and bicycle recording apparatus, the longitude and latitude of parking spot is obtained by gps system, not within the scope of the pre-set radius of the dangerous parking spot longitude and latitude stored in advance, just close vehicle monitoring system, within the scope of the pre-set radius of dangerous parking spot longitude and latitude, maintain and start vehicle monitoring system, with selectivity continuous monitoring record vehicle-surroundings image.

Description

Vehicle monitoring system and method
Technical field
The present invention, about a kind of vehicle monitoring system, especially about utilizing the gps signal combined, judges to start vehicle monitoring system and method.
Background technology
In the democratic society governed by law epoch of exquisite evidence, because bicycle recording apparatus provides surveillance video function, the on-the-spot circumstance of record driving dispute, contributes to the responsibility differentiating both parties, becomes the equipment of vehicle necessity gradually.
As shown in Figure 1, be the functional block diagram of prior art bicycle recording apparatus.The bicycle recording apparatus 10 of prior art contains lens group 11, microprocessing unit 12 and storage element 13.When user's powered vehicle, start power supply on vehicle 14, and power supply on vehicle 14 supplies bicycle recording apparatus 10 electric power simultaneously, and automatically or by manually starting bicycle recording apparatus 10.
When vehicle during the road, by the signal processing unit 12 of bicycle recording apparatus 10, control at least one lens group 11 being located at vehicle-surroundings, the image of photography vehicle-surroundings, signal of video signal is processed again by microprocessing unit 12, signal of video signal is transferred to storage element 13, to store the running surrounding image of vehicle.Therefore, when there being car accident to occur, user can consult the image at that time of storage by storage element 13, and the real conditions that reducible car accident occurs.
But, though prior art bicycle recording apparatus 10 can registration of vehicle driving recording in the process of moving, only the running of bicycle recording apparatus 10 need rely on power supply on vehicle 14 to supply electric power, in order to save electric power and avoid excessively using power supply on vehicle 14, affect the startup of vehicle, close bicycle recording apparatus 10 after power supply on vehicle 14 when vehicle also to close thereupon, and cannot the situation that occurs during parking of registration of vehicle.Therefore prior art bicycle recording apparatus is on the anti-thefting monitoring of vehicle, still has problems demand to solve.
Summary of the invention
The object of the present invention is to provide a kind of vehicle monitoring system, integrated global global position system and bicycle recording apparatus, utilize bicycle recording apparatus to store and preset satellite fix scope, after closedown power supply on vehicle, start vehicle monitoring system, with the continuous monitoring vehicle of selectivity.
Another object of the present invention is to provide a kind of automobile-used method for supervising, by storing the longitude and latitude of the GPS (Global Position System) of dangerous parking spot, adds pre-set radius, is formed and presets satellite fix scope, to start vehicle monitoring system.
Still a further object of the present invention is to provide a kind of vehicle monitoring system and method, presetting the satellite fix scope of dangerous parking spot, by reexamining preset security parking spot, closes vehicle monitoring system, to save electric power.
Another object of the present invention is to provide a kind of vehicle monitoring system and method, after vehicle cuts out power supply on vehicle, utilizes vehicle monitoring system to monitor the electricity consumption condition of power supply on vehicle, during lower than low power threshold value, closes power supply on vehicle, in order to avoid affect the startup of vehicle in good time.
In order to reach the object of aforementioned invention, the invention provides a kind of vehicle monitoring system, electric power is supplied by power supply on vehicle, this system comprises: a bicycle recording apparatus, controlled to start or close by microprocessing unit, the image of shooting registration of vehicle periphery, and microprocessing unit is processed into audio/video file, recycling storage is at storage element, and storage element stores longitude and latitude group and the pre-set radius of dangerous parking spot in advance; One GPS (Global Position System), is connected to bicycle recording apparatus, is obtained the longitude and latitude of vehicle parking position by microprocessing unit control; One comparing unit, is connected to bicycle recording apparatus, is controlled by microprocessing unit, will the longitude and latitude of acquisition parking spot, stores with storage element the dangerous Parking range comparison that dangerous parking spot longitude and latitude group and pre-set radius R thereof formed; And a delay cell, be connected to bicycle recording apparatus, controlled by microprocessing unit, after closedown power supply on vehicle, postpone Preset Time and close vehicle monitoring system; Wherein, after closedown power supply on vehicle, microprocessing unit control lag cell delay closes vehicle monitoring system, microprocessing unit controls the longitude and latitude that GPS (Global Position System) obtains parking spot, and control comparing unit comparison storage element and store dangerous Parking range, start vehicle monitoring system to judge to maintain.
In order to reach the object of aforementioned invention, present invention also offers a kind of automobile-used method for supervising, its step comprises: (1) closes power supply on vehicle in parking, and under postponing Preset Time closedown vehicle monitoring system, is obtained the longitude and latitude of parking spot by gps system; (2) check that the longitude and latitude of parking spot is within the scope of the pre-set radius storing dangerous parking spot longitude and latitude group in advance? if the longitude and latitude of parking spot is within the scope of the pre-set radius of dangerous parking spot longitude and latitude, step of arriving (3), if the longitude and latitude of parking spot is not within the scope of the pre-set radius of dangerous parking spot longitude and latitude, step of arriving (4); (3) startup vehicle monitoring system is maintained; (4) vehicle monitoring system is closed.
In order to reach the object of aforementioned invention, vehicle monitoring system of the present invention, electric power is supplied by power supply on vehicle, after closedown power supply on vehicle, close vehicle monitoring system with delay units delay Preset Time, utilize microprocessing unit to control to start or close bicycle recording apparatus, the image of shooting registration of vehicle periphery, be processed into audio/video file, recycling storage is at storage element, and storage element stores longitude and latitude group and the pre-set radius of dangerous parking spot in advance.Microprocessing unit controls the longitude and latitude that GPS (Global Position System) obtains parking spot.The longitude and latitude and the storage element that utilize comparing unit comparison to capture parking spot store the dangerous Parking range that dangerous parking spot longitude and latitude group and pre-set radius R thereof are formed, to judge to maintain startup vehicle monitoring system.
The storage element of the other embodiment vehicle monitoring system of the present invention is the longitude and latitude group of storage safe parking spot and preset security radius in advance, form emergency scope, microprocessing unit judges in dangerous Parking range, after need getting rid of emergency scope again, could maintain and start vehicle monitoring system.Another microprocessing unit be connected an electrical power monitoring device between power supply on vehicle, electrical power monitoring device controls to detect the electric power of power supply on vehicle by microprocessing unit, and the electric power of power supply on vehicle is less than storage element when storing low power threshold value in advance, closes vehicle monitoring system.
Automobile-used method for supervising of the present invention, closes power supply on vehicle in parking, and under postponing Preset Time closedown vehicle monitoring system, is obtained the longitude and latitude of parking spot by gps system; Check that the longitude and latitude of parking spot is within the scope of the pre-set radius storing dangerous parking spot longitude and latitude group in advance? if the longitude and latitude of parking spot is within the scope of the pre-set radius of dangerous parking spot longitude and latitude, just maintain and start vehicle monitoring system, if the longitude and latitude of parking spot, not within the scope of the pre-set radius of dangerous parking spot longitude and latitude, just closes vehicle monitoring system.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of prior art bicycle recording apparatus.
Fig. 2 is the functional block diagram of first embodiment of the invention vehicle monitoring system.
Fig. 3 is the schematic diagram of first embodiment of the invention vehicle parking monitoring range.
Fig. 4 is the flow chart of the automobile-used method for supervising of first embodiment of the invention.
Fig. 5 is the schematic diagram of second embodiment of the invention vehicle parking monitoring range.
Fig. 6 is the flow chart of the automobile-used method for supervising of second embodiment of the invention.
Fig. 7 is the functional block diagram of third embodiment of the invention vehicle monitoring system.
Fig. 8 is the flow chart of the automobile-used method for supervising of third embodiment of the invention.
[main element label declaration]
Embodiment
Relevant the present invention is for reaching above-mentioned purpose, and the technological means adopted and effect thereof, hereby lift preferred embodiment, and coordinate graphic be illustrated as follows.
Please refer to Fig. 2 and Fig. 3, Fig. 2 is the functional block diagram of first embodiment of the invention vehicle monitoring system 20, and Fig. 3 is the schematic diagram of first embodiment of the invention vehicle parking monitoring range.Vehicle monitoring system 20 of the present invention supplies electric power by power supply on vehicle 21, comprises bicycle recording apparatus 22, GPS (Global Position System) (GlobalPositionSystem is called for short gps system) 23, comparing unit 24 and delay cell 30 etc. for integrating.Wherein bicycle recording apparatus 22 comprises operation interface 25, microprocessing unit 26, display unit 27, lens group 28 and storage element 29.Bicycle recording apparatus 22 utilizes operation interface 25 input control order, by microprocessing unit 26, controls to start or close bicycle recording apparatus 22, and controls display unit 27 via microprocessing unit 26, select the pattern that lens group 28 is taken.Lens group 28 comprises at least one camera lens, is arranged at the periphery of vehicle, the image of shooting vehicle-surroundings.Microprocessing unit 26 receives the video-audio signal that lens group 28 is taken, and be processed into audio/video file, recycling storage is at storage element 29.When investigating the audio/video file that storage element 29 stores, bicycle recording apparatus 22 utilizes operation interface 25, storage element 29 is selected to store the audio/video file of shooting at display unit 27, instruction microprocessing unit 26 transfers to display unit 27 by storage element 29 and plays, and allows bicycle recording apparatus 22 reach the object of the image of record and monitoring vehicle periphery.
Gps system 23 is connected to bicycle recording apparatus 22, is started or closes, in order to obtain the longitude and latitude P of vehicle position, longitude and latitude P is illustrated in display unit 27, transfers to comparing unit 24 or be stored to storage element 29 by the control of microprocessing unit 26.Another longitude and latitude group PN and the pre-set radius R storing selected dangerous parking spot in advance of storage element 29.The longitude and latitude group PN of the dangerous parking spot of aforementioned chosen in advance, such as, easily by the roadside of colliding or the place etc. be easily stolen, operation interface 25 can be utilized to input longitude and latitude at display unit 27 by driver, then instruction microprocessing unit 26 is stored in storage element 29.Also can by the cloud database of vehicle service manufacturer, provide according to the stolen or traffic accident accident occurrence frequency highest point of police office statistics longitude and latitude, downloaded stored in storage element 29 by microprocessing unit 26.
Comparing unit 24 is connected to bicycle recording apparatus 22, controlled by microprocessing unit 26, microprocessing unit 26 is captured the longitude and latitude P of parking spot gps system transmission, the dangerous Parking range comparison that dangerous parking spot longitude and latitude group PN and pre-set radius R thereof formed is stored in advance, as judging the foundation starting vehicle monitoring system 20 with storage element 29.Whether delay cell 30 is connected to bicycle recording apparatus 22, is controlled by microprocessing unit 26, perform after closedown power supply on vehicle 21, postpones Preset Time and closes the electric power of vehicle monitoring system 20 from power supply on vehicle.
When starting the vehicle, power supply on vehicle 21 supplies electrical power to vehicle monitoring system 20 of the present invention, automatically bicycle recording apparatus 22 and gps system 23 is started by microprocessing unit 26, bicycle recording apparatus 22 takes registration of vehicle image in the process of moving, and gps system 23 provides the longitude and latitude P of vehicle position, receive process by microprocessing unit 26.Driver then via operation interface 25 input control order, at display unit 27 mat microprocessing unit 26 choice for use gps system 23 location navigation, or viewing bicycle recording apparatus 22 image taking or record.
After vehicle parking closes power supply on vehicle 21, delay cell 30 postpones Preset Time and closes vehicle monitoring system 20 power supply, gps system 23 is obtained the longitude and latitude P of vehicle parking position by microprocessing unit 26, the dangerous parking spot longitude and latitude group PN stored in advance with storage element 29, transfer to comparing unit 24 to compare, as long as the longitude and latitude P of parking spot is within the scope of the pre-set radius R of dangerous parking spot longitude and latitude group PN, microprocessing unit 26 just judges that storing cycle is in unsafe position, stop performing delay cell 30, automatic maintenance starts vehicle monitoring system 20, make bicycle recording apparatus 22 at the image of parking period continuous surveillance registration of vehicle periphery.Vehicle monitoring system 20 is automatically between the starting period, and driver also decides whether manually close vehicle monitoring system 20 in its sole discretion by operation interface 25.
When the longitude and latitude P of parking spot is not within the scope of the pre-set radius R of dangerous parking spot longitude and latitude group PN, microprocessing unit 26 judges the position of storing cycle in safety, after delay Preset Time, and micro-automatic closedown vehicle monitoring system 20.After closing vehicle monitoring system 20, driver also can select the fail safe for parking spot, determine whether manually start vehicle monitoring system 20, if manually start vehicle monitoring system 20, this parking spot of judgement is unsafe parking spot by microprocessing unit 26, obtained the longitude and latitude P of vehicle parking position by gps system 23, be stored in storage element 29, form the longitude and latitude group PN of the dangerous parking spot of chosen in advance.And control vehicle monitoring system 20 proceed monitoring.
As shown in Figure 4, be the flow process of the automobile-used method for supervising of first embodiment of the invention.The present invention utilizes gps system to judge, and the step-by-step procedures of the method starting vehicle monitoring system is as follows: close power supply on vehicle in step R1 vehicle parking; Step R2 postpones Preset Time and closes vehicle monitoring system, and is obtained the longitude and latitude of parking spot by gps system; Does step R3 check that the longitude and latitude of parking spot is within the scope of the pre-set radius storing dangerous parking spot longitude and latitude group in advance? if the longitude and latitude of parking spot not within the scope of the pre-set radius of dangerous parking spot longitude and latitude group, then enters step R4; If the longitude and latitude of parking spot within the scope of the pre-set radius of dangerous parking spot longitude and latitude group, then enters step R7; Step R4 judges that vehicle parking is in emergency position, closes vehicle monitoring system; In step R5, select to manually start vehicle monitoring system; Step R6, is obtained the longitude and latitude of parking spot by gps system, save as the longitude and latitude group of dangerous parking spot; Step R7 judges that vehicle parking is at dangerous parking spot, automatically maintains and starts vehicle monitoring system.
Therefore, first embodiment of the invention vehicle monitoring system and method, get final product integrated global global position system and bicycle recording apparatus, by storing the longitude and latitude group of the GPS (Global Position System) of dangerous parking spot in advance, adding pre-set radius, being formed and presetting dangerous parking spot satellite fix scope, after vehicle parking, detect comparison longitude and latitude, automatically start vehicle monitoring system, reach the object of the continuous monitoring vehicle of selectivity.
As shown in Figure 5, be the schematic diagram of second embodiment of the invention vehicle parking monitoring range.The structure of second embodiment of the invention vehicle monitoring system is identical with the first embodiment vehicle monitoring system.Because of first embodiment of the invention vehicle monitoring system, stop at home or the parking lot having guard to guard, relatively fool proof, start vehicle monitoring system after should stopping and monitor.But one leaves emergency position, environment around just may not be certain safety.If emergency position is comprised within the scope of the pre-set radius R of aforementioned dangerous parking spot longitude and latitude group PN, first embodiment of the invention vehicle monitoring system is monitored automatically starting, not only waste power supply on vehicle, and manually must close vehicle monitoring system, cause inconvenience.Therefore second embodiment of the invention vehicle monitoring system separately stores longitude and latitude group PS and the preset security radius r of selected emergency position in advance at storage element, to form emergency scope.Preset security radius r absolute presupposition radius R is less, to contain emergency position among a small circle.When second embodiment of the invention vehicle monitoring system is within the scope of the pre-set radius R judging dangerous parking spot longitude and latitude group PN, then after the longitude and latitude group PS getting rid of emergency position and preset security radius r scope, just maintains and start vehicle monitoring system.
As shown in Figure 6, be the flow process of the automobile-used method for supervising of second embodiment of the invention.The step-by-step procedures of the automobile-used method for supervising of second embodiment of the invention is as follows: close power supply on vehicle in step S1 vehicle parking; Step S2 postpones Preset Time and closes vehicle monitoring system, and is obtained the longitude and latitude of parking spot by gps system; Does step S3 check that the longitude and latitude of parking spot is within the scope of the pre-set radius storing dangerous parking spot longitude and latitude group in advance? if the longitude and latitude of parking spot within the scope of the pre-set radius of dangerous parking spot longitude and latitude group, then enters step S4; If the longitude and latitude of parking spot not within the scope of the pre-set radius of dangerous parking spot longitude and latitude group, then enters step S6; Is the longitude and latitude that step S4 reexamines parking spot in the preset security radius of storage safe parking spot longitude and latitude group in advance? if the longitude and latitude of parking spot not in the preset security radius of emergency position longitude and latitude group, then enters step S5; If the longitude and latitude of parking spot in the preset security radius of emergency position longitude and latitude group, then enters step S6; Step S5 judges that vehicle parking is at dangerous parking spot, automatically maintains and starts bicycle recording apparatus; Step S6 judges that vehicle parking is in emergency position, closes vehicle monitoring system.
Therefore, second embodiment of the invention vehicle monitoring system and method, can in the satellite fix scope presetting dangerous parking spot, by reexamining default emergency position range, automatic closedown vehicle monitoring system, makes more convenient operation, and reaches the object of saving power supply on vehicle electric power.
Please refer to Fig. 7, is the functional block diagram of third embodiment of the invention vehicle monitoring system 40.Third embodiment of the invention vehicle monitoring system 40 comprises structure and the function of the first embodiment vehicle monitoring system 20, and for convenience of description, identical components continues to use the piece number of the first embodiment vehicle monitoring system 20.Difference is in increases by an electrical power monitoring device 31 in third embodiment of the invention vehicle monitoring system 40.Electrical power monitoring device 31 is connected between microprocessing unit 26 and power supply on vehicle 21, controls by microprocessing unit 26 electric power detecting power supply on vehicle 21, to judge to open or close vehicle monitoring system 40.Between vehicle monitoring system 40 starting period, control via microprocessing unit 26 electric power that electrical power monitoring device 31 monitors power supply on vehicle 21.And store a low power threshold value preset at storage element 29, the monitoring electric power utilizing microprocessing unit 26 to control electrical power monitoring device 31 compares with low power threshold value, when monitoring electric power and being less than low power threshold value, close vehicle monitoring system 40, excessively use power supply on vehicle 50 in order to avoid long-term, affect the startup of vehicle.
As shown in Figure 8, be the flow process of the automobile-used method for supervising of third embodiment of the invention.The step-by-step procedures of the method for third embodiment of the invention vehicle monitoring system is as follows: close power supply on vehicle in step T1 vehicle parking; Step T2 postpones Preset Time and closes vehicle monitoring system, and is obtained the longitude and latitude of parking spot by gps system; Does step T3 check that the longitude and latitude of parking spot is within the scope of the pre-set radius of dangerous parking spot longitude and latitude group? if the longitude and latitude of parking spot within the scope of the pre-set radius of dangerous parking spot longitude and latitude group, then enters step T4; If the longitude and latitude of parking spot not within the scope of the pre-set radius of dangerous parking spot longitude and latitude group, then enters step T7; Step T4 judges that vehicle parking is at dangerous parking spot, automatically maintains and starts bicycle recording apparatus; Step T5 monitors the electric power of power supply on vehicle; Does step T6 check that the electric power of monitoring power supply on vehicle is lower than low power threshold value? if be not less than low power threshold value, get back to the electric power that step T5 continues monitoring power supply on vehicle, if to arrive step T7 lower than low power threshold value; Step T7 closes vehicle monitoring system.
Therefore, third embodiment of the invention vehicle monitoring system and method, power supply on vehicle is closed at vehicle, judge after dangerous parking spot starts vehicle monitoring system, utilize the electricity consumption condition of monitoring power supply on vehicle, during lower than low power threshold value, close power supply on vehicle in good time, reach the object avoiding affecting vehicle launch.
As described above, only in order to convenient, preferred embodiment of the present invention is described, scope of the present invention is not limited to these preferred embodiments, and all any changes done according to the present invention, under not departing from spirit of the present invention, all belong to the scope of the claims in the present invention.

Claims (11)

1. a vehicle monitoring system, supplies electric power by power supply on vehicle, and this system comprises:
One bicycle recording apparatus, controlled to start or close by microprocessing unit, the image of shooting registration of vehicle periphery, and microprocessing unit is processed into audio/video file, recycling storage is at storage element, and storage element stores longitude and latitude group and the pre-set radius of dangerous parking spot in advance;
One GPS (Global Position System), is connected to bicycle recording apparatus, is obtained the longitude and latitude of vehicle parking position by microprocessing unit control;
One comparing unit, is connected to bicycle recording apparatus, is controlled by microprocessing unit, will the longitude and latitude of acquisition parking spot, stores with storage element the dangerous Parking range comparison that dangerous parking spot longitude and latitude group and pre-set radius R thereof formed; And
One delay cell, is connected to bicycle recording apparatus, is controlled by microprocessing unit, after closedown power supply on vehicle, postpones Preset Time and closes vehicle monitoring system;
Wherein, after closedown power supply on vehicle, microprocessing unit control lag cell delay closes vehicle monitoring system, microprocessing unit controls the longitude and latitude that GPS (Global Position System) obtains parking spot, and control the dangerous Parking range that the longitude and latitude of the parking spot acquired by comparing unit comparison and storage element store, start vehicle monitoring system to judge whether to maintain.
2. vehicle monitoring system according to claim 1, wherein this vehicle monitoring system manually starts, and microprocessing unit is judged as unsafe parking spot, is obtained the longitude and latitude of vehicle parking position by gps system, be stored in storage element, form the longitude and latitude group of dangerous parking spot.
3. vehicle monitoring system according to claim 1, wherein this storage element longitude and latitude group of storage safe parking spot and preset security radius in advance, forms emergency scope.
4. vehicle monitoring system according to claim 3, wherein this microprocessing unit judges in dangerous Parking range, after need getting rid of emergency scope again, could maintain and start vehicle monitoring system.
5. vehicle monitoring system according to claim 1, is wherein connected an electrical power monitoring device between this microprocessing unit with power supply on vehicle, and electrical power monitoring device controls by microprocessing unit the electric power detecting power supply on vehicle.
6. vehicle monitoring system according to claim 5, wherein this storage element stores a low power threshold value in advance, and the electric power of electrical power monitoring device monitoring power supply on vehicle is less than low power threshold value, closes vehicle monitoring system.
7. an automobile-used method for supervising, its step comprises:
(1) close power supply on vehicle in parking, and under postponing Preset Time closedown vehicle monitoring system, obtained the longitude and latitude of parking spot by gps system;
(2) check that the longitude and latitude of parking spot is within the scope of the pre-set radius storing dangerous parking spot longitude and latitude group in advance? if the longitude and latitude of parking spot is within the scope of the pre-set radius of dangerous parking spot longitude and latitude, step of arriving (3), if the longitude and latitude of parking spot is not within the scope of the pre-set radius of dangerous parking spot longitude and latitude, step of arriving (4);
(3) startup vehicle monitoring system is maintained;
(4) vehicle monitoring system is closed.
8. automobile-used method for supervising according to claim 7, wherein after checking that the longitude and latitude of parking spot is within the scope of the pre-set radius of not selected emergency position longitude and latitude, check that the longitude and latitude of parking spot is in the preset security radius of storage safe parking spot longitude and latitude group in advance more further? if the longitude and latitude of parking spot not in the preset security radius of emergency position longitude and latitude group, then enters step (3); If the longitude and latitude of parking spot in the preset security radius of emergency position longitude and latitude group, then enters step (4).
9. automobile-used method for supervising according to claim 7, wherein after maintenance starts vehicle monitoring system, the electric power of monitoring power supply on vehicle, and check that the electric power of monitoring power supply on vehicle is lower than the low power threshold value preset? if be not less than low power threshold value, just continue the electric power of monitoring power supply on vehicle, if just close vehicle monitoring system lower than low power threshold value.
10. automobile-used method for supervising according to claim 9, wherein after closedown vehicle monitoring system, selects to manually start vehicle monitoring system.
11. automobile-used method for supervising according to claim 10, are wherein obtained the longitude and latitude of parking spot by gps system, save as the longitude and latitude group of dangerous parking spot.
CN201110440660.8A 2011-12-26 2011-12-26 Vehicle monitoring system and method Expired - Fee Related CN103179377B (en)

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