CN103065471A - Floating car information collection and optimization method based on active information reporting - Google Patents
Floating car information collection and optimization method based on active information reporting Download PDFInfo
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- CN103065471A CN103065471A CN2012105631843A CN201210563184A CN103065471A CN 103065471 A CN103065471 A CN 103065471A CN 2012105631843 A CN2012105631843 A CN 2012105631843A CN 201210563184 A CN201210563184 A CN 201210563184A CN 103065471 A CN103065471 A CN 103065471A
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Abstract
The invention provides a floating car information collection and optimization method based on active information reporting. The floating car information collection and optimization method includes a tenth step of using a car-mounted terminal to obtain the real-time information of speed, direction and time of a floating car, a twentieth step of using the car-mounted terminal to calculate the variable quantity of speed and direction information of the car within a sampling cycle, if one variable quantity exceeds a preset threshold value of a system, the car-mounted terminal can be triggered to collect current car driving data information, if not, the car-mounted terminal can prolong the sampling cycle, and a thirtieth step of using the car-mounted terminal to upload the collected car driving data information to a data center through mobile cellular communication technology. Through the car-mounted terminal with different sampling cycles, the driving data information of the floating car is collected and actively uploaded, collection accuracy of the driving data information of the floating car is improved, and the communication cost is reduced at the same time.
Description
[technical field]
The present invention relates to a kind of Floating Car information acquisition optimization method that reports based on initiative information.
[background technology]
Floating Car (Floating Vehicles Equipped with GPS) also claim the GPS probe vehicles, be one of the advanced technology means of Traffic Information of obtaining that adopt in the international intelligent transportation system (ITS) in the last few years, have the characteristics convenient, wide coverage of using.Its ultimate principle: by equipment GPS receiver, with the informations such as position, time speed and direction of a fixed sample period to vehicle, and a data communication device that collects is crossed the technical background data center that passes to of mobile cellular.
Because larger variation all may occur with direction of traffic in car speed in fixed sample period, if car-mounted terminal can't in time reflect the variation of Floating Car real-time information with the fixed sample period image data, this may cause a large amount of redundant informations simultaneously.
[summary of the invention]
The technical problem to be solved in the present invention, be to provide a kind of Floating Car information acquisition optimization method that reports based on initiative information, gather and active upload Floating Car travelling data information with the different sampling periods by car-mounted terminal, improve the precision of Floating Car travelling data information acquisition, reduced simultaneously communications cost.
The present invention is achieved in that
Based on the Floating Car information acquisition optimization method that initiative information reports, described method comprises the steps:
Step 10, utilize car-mounted terminal to obtain the real-time speed of Floating Car, direction, temporal information;
Step 20, car-mounted terminal calculate the variable quantity of interior car speed of a sampling period and directional information, if when having a variable quantity to surpass the threshold value of systemic presupposition, then trigger car-mounted terminal and gather current line car data information, if not, then car-mounted terminal will prolong in the sampling period;
Step 30, car-mounted terminal will collect the travelling data information exchange and cross the technical data center that reaches of mobile cellular communication.
Further, described step 10 specifically comprises following content: utilize vehicle GPS with one regular time cycle T obtain in the process of moving vehicle real time of Floating Car, i.e. speed v
i, direction d
iWith time t
i, wherein i is the numbering of vehicle real time.
Further, described step 20 specifically is divided into following steps:
Step 21, in fixed time period T, car-mounted terminal calculates variation delta v and the variation delta d of angular separation, i.e. the Δ v=|v of Floating Car velocity amplitude
i-v
I-1|;
Step 22, judge that velocity variable Δ v is whether more than or equal to a threshold value v of systemic presupposition
0If, as Δ v 〉=v
0The time, then trigger car-mounted terminal and gather current travelling data information, if not, then further judge the variable quantity of angular separation;
Described travelling data information is by car number u
j, position l
j, time t
j, speed v
j, direction d
jThe travelling data sequence x that consists of
j, described travelling data sequence x
jCan be expressed as x
j=＜u
j, l
j, t
j, v
j, d
j, wherein j is travelling data sequence x
jNumbering;
Step 23, judge that angular separation variation delta d is whether more than or equal to a threshold value d of systemic presupposition
0If, as Δ d 〉=d
0, then trigger car-mounted terminal and gather current travelling data information, if not, then return step 21 and will the sampling period be set to τ
1, described sampling period τ
1Be expressed as τ
1=n*T, wherein n is a systemic presupposition constant, T is the sampling period of car-mounted terminal acquiescence.
Further, described step 30 specifically comprises following content:
Car-mounted terminal is with the travelling data sequence x of the Floating Car travelling data information of collection
jBy the technical data center that reaches of mobile cellular communication.
The present invention has following advantage:
Car-mounted terminal of the present invention is according to the car speed of Real-time Obtaining and the situation of change of direction, adjusting the different sampling periods samples and active upload Floating Car travelling data information, more can react the real-time change situation of the various running informations of Floating Car, greatly reduced information data redundant, improve the efficient of Floating Car travelling data information acquisition, reduced simultaneously communications cost.
[description of drawings]
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is process flow diagram of the present invention.
Fig. 2 is information acquisition optimized algorithm of the present invention.
[embodiment]
See also shown in Fig. 1-2, the present invention relates to a kind of Floating Car information acquisition optimization method that reports based on initiative information, described method comprises the steps:
Data acquisition:
Step 10, utilize vehicle GPS with one regular time cycle T obtain in the process of moving vehicle real time of Floating Car, i.e. speed v
i, direction d
iWith time t
i, wherein i is the numbering of vehicle real time.
Information is optimized:
Step 21, in fixed time period T, car-mounted terminal calculates variation delta v and the variation delta d of angular separation, i.e. the Δ v=|v of Floating Car velocity amplitude
i-v
I-1|;
Step 22, judge that velocity variable Δ v is whether more than or equal to a threshold value v of systemic presupposition
0If, as Δ v 〉=v
0The time, then trigger car-mounted terminal and gather current travelling data information, if not, then further judge the variable quantity of angular separation;
Described travelling data information is by car number u
j, position l
j, time t
j, speed v
j, direction d
jThe travelling data sequence x that consists of
j, described travelling data sequence x
jCan be expressed as x
j=＜u
j, l
j, t
j, v
j, d
j, wherein j is travelling data sequence x
jNumbering;
Step 23, judge that angular separation variation delta d is whether more than or equal to a threshold value d of systemic presupposition
0If, as Δ d 〉=d
0, then trigger car-mounted terminal and gather current travelling data information, if not, then return step 21 and will the sampling period be set to τ
1, described sampling period τ
1Be expressed as τ
1=n*T, wherein n is a systemic presupposition constant, T is the sampling period of car-mounted terminal acquiescence.
Data upload:
Step 30, car-mounted terminal are with the travelling data sequence x of the Floating Car travelling data information that gathers
jBy the technical data center that reaches of mobile cellular communication.
Car-mounted terminal of the present invention is according to the car speed of Real-time Obtaining and the situation of change of direction, adjusting the different sampling periods samples and active upload Floating Car travelling data information, more can react the real-time change situation of the various running informations of Floating Car, greatly reduced information data redundant, improve the efficient of Floating Car travelling data information acquisition, reduced simultaneously communications cost.
Although more than described the specific embodiment of the present invention; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; rather than for the restriction to scope of the present invention; those of ordinary skill in the art are in modification and the variation of the equivalence of doing according to spirit of the present invention, all should be encompassed in the scope that claim of the present invention protects.
Claims (4)
1. the Floating Car information acquisition optimization method that reports based on initiative information, it is characterized in that: the method comprises the steps:
Step 10, utilize car-mounted terminal to obtain the real-time speed of Floating Car, direction, temporal information;
Step 20, car-mounted terminal calculate the variable quantity of interior car speed of a sampling period and directional information, if when having a variable quantity to surpass the threshold value of systemic presupposition, then trigger car-mounted terminal and gather current line car data information, if not, then car-mounted terminal will prolong in the sampling period;
Step 30, car-mounted terminal will collect the travelling data information exchange and cross the technical data center that reaches of mobile cellular communication.
2. the Floating Car information acquisition optimization method that reports based on initiative information according to claim 1, it is characterized in that: described step 10 specifically comprises following content: utilize vehicle GPS with one regular time cycle T obtain in the process of moving vehicle real time of Floating Car, i.e. speed v
i, direction d
iWith time t
i, wherein i is the numbering of vehicle real time.
3. the Floating Car information acquisition optimization method that reports based on initiative information according to claim 1, it is characterized in that: described step 20 specifically is divided into following steps:
Step 21, in fixed time period T, car-mounted terminal calculates variation delta v and the variation delta d of angular separation, i.e. the Δ v=|v of Floating Car velocity amplitude
i-v
I-1|;
Step 22, judge that velocity variable Δ v is whether more than or equal to a threshold value v of systemic presupposition
0If, as Δ v 〉=v
0The time, then trigger car-mounted terminal and gather current travelling data information, if not, then further judge the variable quantity of angular separation;
Described travelling data information is by car number u
j, position l
j, time t
j, speed v
j, direction d
jThe travelling data sequence x that consists of
j, described travelling data sequence x
jCan be expressed as x
j=＜u
j, l
j, t
j, v
j, d
j, wherein j is travelling data sequence x
jNumbering;
Step 23, judge that angular separation variation delta d is whether more than or equal to a threshold value d of systemic presupposition
0If, as Δ d 〉=d
0, then trigger car-mounted terminal and gather current travelling data information, if not, then return step 21 and will the sampling period be set to τ
1, described sampling period τ
1Be expressed as τ
1=n*T, wherein n is a systemic presupposition constant, T is the sampling period of car-mounted terminal acquiescence.
4. the Floating Car information acquisition optimization method that reports based on initiative information according to claim 1, it is characterized in that: described step 30 specifically comprises following content:
Car-mounted terminal is with the travelling data sequence x of the Floating Car travelling data information of collection
jBy the technical data center that reaches of mobile cellular communication.
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| CN2012105631843A CN103065471A (en) | 2012-12-21 | 2012-12-21 | Floating car information collection and optimization method based on active information reporting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105631843A CN103065471A (en) | 2012-12-21 | 2012-12-21 | Floating car information collection and optimization method based on active information reporting |
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| CN103065471A true CN103065471A (en) | 2013-04-24 |
Family
ID=48108083
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| CN2012105631843A Pending CN103065471A (en) | 2012-12-21 | 2012-12-21 | Floating car information collection and optimization method based on active information reporting |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995593A (en) * | 2014-05-22 | 2014-08-20 | 无锡爱维特信息技术有限公司 | Dynamic position data uploading method based on acceleration action sensor |
| CN107135267A (en) * | 2017-05-19 | 2017-09-05 | 千寻位置网络有限公司 | Processing method, system and the terminal of vehicle speed variation data, memory |
| CN108198418A (en) * | 2017-12-29 | 2018-06-22 | 温岭市创嘉信息科技有限公司 | A kind of traffic big data of combination key point obtains system |
| CN109246210A (en) * | 2018-08-29 | 2019-01-18 | 山东网智物联网科技有限公司 | Internet of Things communication means and device |
| CN109450926A (en) * | 2018-12-06 | 2019-03-08 | 成都路行通信息技术有限公司 | A kind of travelling data packet compression opportunity calculation method and data packet compressing device |
| CN115733867A (en) * | 2022-12-29 | 2023-03-03 | 阿维塔科技(重庆)有限公司 | Vehicle-mounted GPS data uploading method, system and equipment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995593A (en) * | 2014-05-22 | 2014-08-20 | 无锡爱维特信息技术有限公司 | Dynamic position data uploading method based on acceleration action sensor |
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| CN107135267A (en) * | 2017-05-19 | 2017-09-05 | 千寻位置网络有限公司 | Processing method, system and the terminal of vehicle speed variation data, memory |
| CN108198418A (en) * | 2017-12-29 | 2018-06-22 | 温岭市创嘉信息科技有限公司 | A kind of traffic big data of combination key point obtains system |
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| CN109450926A (en) * | 2018-12-06 | 2019-03-08 | 成都路行通信息技术有限公司 | A kind of travelling data packet compression opportunity calculation method and data packet compressing device |
| CN115733867A (en) * | 2022-12-29 | 2023-03-03 | 阿维塔科技(重庆)有限公司 | Vehicle-mounted GPS data uploading method, system and equipment |
| CN115733867B (en) * | 2022-12-29 | 2024-04-16 | 阿维塔科技(重庆)有限公司 | Vehicle-mounted GPS data uploading method, system and equipment |
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Application publication date: 20130424 |