CN101989382A - Real-time road condition acquisition method based on positioning devices and data network - Google Patents
Real-time road condition acquisition method based on positioning devices and data network Download PDFInfo
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- CN101989382A CN101989382A CN2009100902283A CN200910090228A CN101989382A CN 101989382 A CN101989382 A CN 101989382A CN 2009100902283 A CN2009100902283 A CN 2009100902283A CN 200910090228 A CN200910090228 A CN 200910090228A CN 101989382 A CN101989382 A CN 101989382A
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Abstract
The invention relates to a real-time road condition acquisition method based on positioning devices and a data network. In the invention, the positioning devices respectively installed on automobiles and the data network interconnected with a center server are used. The method comprises the following steps that: (1) an automobile with the positioning device transmits the current position and the average speed information of the automobile to the data network at regular time; (2) the center server statistically processes all automobile data acquired by the data network to obtain the road condition information of each road and releases the road condition information to the traffic control department; and (3) the traffic control department receives the road condition information through the data network so as to control traffic, and drivers download useful road condition information from the data network to be displayed on terminals. The positions and the speed information of automobiles are automatically reported by using the positioning technology for the reference of the traffic control department and the drivers, and the invention has the characteristics of high road condition detection accuracy, low cost, wide coverage area and good real time performance.
Description
Technical field
The present invention relates to field of computer technology, particularly based on the road conditions detecting system of positioning equipment and data network.
Background technology
Range-finding navigation/GPS (NavigationSatellite Time and Ranging/Global Positioning System) was a kind of comparatively advanced practical positioning equipment when GPS full name satellite was surveyed.GPS is made of space segment, Ground Control part and receiver user terminal, for the user provides positioning service.The ultimate principle of GPS is to measure the satellite of known location to the distance between the receiver user, and the data of comprehensive multi-satellite are just known the particular location of receiver then.Reach this purpose, the position of satellite can be found in satellite ephemeris according to the time that spaceborne clock write down.The user then propagates into the time that the user experiences by the record satellite-signal to the distance of satellite, again it be multiply by the light velocity and obtains.Because the ionospheric interference of atmospheric envelope, this distance are not the actual distance between user and the satellite, but pseudorange (PR).When the gps satellite operate as normal, pseudo-random code (abbreviation pseudo-code) the emission navigation message that can constantly form with 1 and 0 binary element.Navigation message comprises information such as satellite ephemeris, working condition, clock correction, ionospheric delay correction, atmospheric refraction correction.It is that rectification comes out from satellite-signal, is modulated at 50b/s and launches on the carrier frequency.Content in the navigation message mainly contains telemetry code, hand over word, the 1st, 2,3 data blocks, and wherein most important then is almanac data.When the user receives navigation message, extract satellite time and its clock with oneself is done the distance that contrast just can be learnt satellite and user, present position when utilizing satellite almanac data in the navigation message to extrapolate the satellites transmits text again, the information such as position and speed of user in the WGS-84 earth coordinates just can be learnt.
At present, the car flow information that traffic control department will obtain on the road is to add up the magnitude of traffic flow by the first-class equipment of shooting is set in each highway section, and numerous camera equipment is a very big cost input, installs, overhauls also pretty troublesome.And the image information of collecting changes into the wagon flow data will spend certain hour, and real-time is poor, accuracy is not high yet.It is investigated in the prior art, use the technology of positioning equipment and data network statistics traffic information and do not appear in the newspapers.
Summary of the invention
In order to overcome above-mentioned problems of the prior art, the purpose of this invention is to provide a kind of real-time road acquisition methods based on positioning equipment and data network.It utilize location technology report automatically the position of vehicle and velocity information for traffic control department and driver with reference to use, reach road conditions accuracy in detection height, cost is low, possesses the characteristics that coverage is big, real-time is good.
In order to reach the foregoing invention purpose, technical scheme of the present invention realizes with following dual mode: mode one
A kind of real-time road acquisition methods based on positioning equipment and data network, its use comprise the positioning equipment that is installed in respectively on the automobile and with the interconnective data network of central server.Its method step is:
The vehicle that 1. positioning equipment has been installed regularly transmits the current location and the mean velocity information of this car on data network;
2. central server all vehicle data sorting-outs in statistics that data network is collected draw each highway section traffic information, issue to traffic control department;
3. traffic control department carries out the road commander by data network reception traffic information, and the driver downloads own useful traffic information from data network and is presented on the terminal.
In above-mentioned real-time road acquisition methods, described positioning equipment adopts GPS and radio communication.
In above-mentioned real-time road acquisition methods, described data network adopts wired or radio data network, comprises cell phone network, mobile phone short message transmitting-receiving, WIFI wireless network or data radio station.
Mode two
A kind of real-time road acquisition methods based on positioning equipment and data network, it uses and comprises positioning equipment and the connected data network that is installed in respectively on the automobile, and its method step is:
The vehicle that 1. positioning equipment has been installed is preserved current location and the mean velocity information of self;
When 2. the driver need understand traffic information, by the request of data network broadcasting oneself;
3. receive that other vehicles of request send to the information of vehicles of this car by data network the vehicle of request;
The vehicle of 4. initiating request draws own useful traffic information with the information of vehicles sorting-out in statistics of collecting.
In above-mentioned real-time road acquisition methods, described positioning equipment adopts GPS and radio communication.
In above-mentioned real-time road acquisition methods, described data network adopts wired or radio data network, comprises cell phone network, mobile phone short message transmitting-receiving, WIFI wireless network or data radio station.
The present invention has following beneficial effect owing to adopted technique scheme:
(1) accuracy in detection height, tradition can only be added up road conditions in the place that is provided with collecting device based on the scheme of special-purpose road condition acquiring equipment, is generally the crossing or the same highway collection point separated by a certain interval of primary highway.What the present invention taked is position and the speed that each traffic participant terminal is reported oneself, has covered the whole places on the different brackets highway, can reach the highest road conditions accuracy in detection.
(2) cost is low, does not need additionally to purchase the special-purpose road condition acquiring device statistics magnitudes of traffic flow such as camera, holes probe and ground magnetic coil, has greatly saved system's construction cost.
(3) real-time is good, and position and velocity information that the pick-up unit self-timing among the present invention is reported can be converted to available information at once.
(4) coverage is big, and tradition, is only being installed collecting device and reached the effectively regional of certain density as the scheme of ground magnetic coil, road conditions video camera, holes probe etc. based on special-purpose collecting device.And used the inventive method, and all reporting real-time information as long as be in the traffic participant of running status, traffic control department and driver just can obtain the traffic information of any region at any time.
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Fig. 1 is the method flow diagram of the embodiment of the invention one;
Fig. 2 is the method flow diagram of the embodiment of the invention two.
Embodiment
The inventive method is used and is comprised positioning equipment and the data network that is installed in respectively on the automobile, and positioning equipment adopts GPS and radio communication.Data network adopts wired or radio data network, comprises cell phone network, mobile phone short message transmitting-receiving, WIFI wireless network or data radio station.Positioning equipment can be obtained the vehicle current location information in real time, and can obtain the mean velocity information of nearest a period of time (in 3 minutes).The form of positioning equipment can adopt the vehicle GPS equipment of network savvy or have the equipment such as mobile phone of GPS function.
The inventive method can be according to having central server and no central server dual mode to carry out.
Embodiment one, and central server is arranged:
The vehicle that 1. positioning equipment has been installed is when travels down, and positioning equipment regularly transmits this car current location information and mean velocity information on data network.
2. central server all vehicle data sorting-outs in statistics that data network is collected draw each highway section traffic information, issue to traffic control department.
3. traffic control department carries out the road commander by data network reception traffic information, and the driver downloads own useful traffic information from data network and is presented on the terminal.
Embodiment two, no central server:
The vehicle that 1. positioning equipment has been installed is preserved current location and the mean velocity information of self.
When 2. traffic control department or driver need understand traffic information, by the request of data network broadcasting oneself.
3. other vehicles of receiving request send to traffic control department by data network with the information of vehicles of this car or the vehicle of request are arranged.
4. the vehicle of traffic control department or initiation request draws own useful traffic information with the information of vehicles sorting-out in statistics of collecting.
The unified service mode of central server network is arranged, and its advantage is: therefore the total data flow is little, finish information aggregate and road conditions by server calculates that speed is faster, server can directly provide the magnitude of traffic flow of any one location to be convenient to unified planning and follow-up value-added service is provided. The P2P pattern of no central server, it is advantageous that: can be used by the acquisition terminal in the certain area for example voluntarily networking of mode of WIFI Mesh, need not internet and connect, the disaster tolerance performance that therefore can save running cost, no crucial node so system is better. In actual applications, dual mode can Integrated using.
Claims (6)
1. real-time road acquisition methods based on positioning equipment and data network, its use comprise the positioning equipment that is installed in respectively on the automobile and with the interconnective data network of central server, its method step is:
The vehicle that 1. positioning equipment has been installed regularly transmits the current location and the mean velocity information of this car on data network;
2. central server all vehicle data sorting-outs in statistics that data network is collected draw each highway section traffic information, issue to traffic control department;
3. traffic control department carries out the road commander by data network reception traffic information, and the driver downloads own useful traffic information from data network and is presented on the terminal.
2. the real-time road acquisition methods based on positioning equipment and data network according to claim 1 is characterized in that, described positioning equipment adopts GPS and radio communication.
3. the real-time road acquisition methods based on positioning equipment and data network according to claim 1 and 2, it is characterized in that, described data network adopts wired or radio data network, comprises cell phone network, mobile phone short message transmitting-receiving, WIFI wireless network or data radio station.
4. real-time road acquisition methods based on positioning equipment and data network, its uses and comprises positioning equipment and the connected data network that is installed in respectively on the automobile, and its method step is:
The vehicle that 1. positioning equipment has been installed is preserved current location and the mean velocity information of self;
When 2. traffic control department or driver need understand traffic information, by the request of data network broadcasting oneself;
3. other vehicles of receiving request send to traffic control department by data network with the information of vehicles of this car or the vehicle of request are arranged;
4. the vehicle of traffic control department or initiation request draws own useful traffic information with the information of vehicles sorting-out in statistics of collecting.
5. the real-time road acquisition methods based on positioning equipment and data network according to claim 4 is characterized in that, described positioning equipment adopts GPS and wireless network.
6. according to claim 4 or 5 described real-time road acquisition methods based on positioning equipment and data network, it is characterized in that, described data network adopts wired or radio data network, comprises cell phone network, mobile phone short message transmitting-receiving, WIFI wireless network or data radio station.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100902283A CN101989382A (en) | 2009-08-06 | 2009-08-06 | Real-time road condition acquisition method based on positioning devices and data network |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102285363A (en) * | 2011-08-03 | 2011-12-21 | 西安盛佳光电有限公司 | Method and system for managing running safety |
| CN102800206A (en) * | 2011-05-22 | 2012-11-28 | 方文淋 | Road vehicle information long-distance perception system |
| CN102945613A (en) * | 2012-11-15 | 2013-02-27 | 深圳华宏联创科技有限公司 | Traffic information predicting system for solving traffic jam |
| CN103065461A (en) * | 2011-10-19 | 2013-04-24 | 北京千橡网景科技发展有限公司 | Method and device used for collecting and obtaining traffic road condition information |
| CN103914988A (en) * | 2013-01-04 | 2014-07-09 | 中国移动通信集团公司 | Traffic road condition data processing method, device and system |
| CN104715600A (en) * | 2013-12-11 | 2015-06-17 | 香港生产力促进局 | Traffic data real-time transmission system and method based on M2V transmission protocol |
| CN104715628A (en) * | 2014-12-23 | 2015-06-17 | 上海语镜汽车信息技术有限公司 | Vehicle-mounted real-time road condition method and device based on positional relationship calculation |
| CN105321344A (en) * | 2014-08-05 | 2016-02-10 | 中国电信股份有限公司 | Method, device and system of calculation of real time traffic status on the basis of information interaction |
| CN106251700A (en) * | 2016-08-23 | 2016-12-21 | 安徽联合安全科技有限公司 | A kind of barrier system for prompting mounted on the helmet |
| CN106353761A (en) * | 2016-08-23 | 2017-01-25 | 安徽联合安全科技有限公司 | Obstacle reminding system |
-
2009
- 2009-08-06 CN CN2009100902283A patent/CN101989382A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800206A (en) * | 2011-05-22 | 2012-11-28 | 方文淋 | Road vehicle information long-distance perception system |
| CN102285363A (en) * | 2011-08-03 | 2011-12-21 | 西安盛佳光电有限公司 | Method and system for managing running safety |
| CN103065461A (en) * | 2011-10-19 | 2013-04-24 | 北京千橡网景科技发展有限公司 | Method and device used for collecting and obtaining traffic road condition information |
| CN102945613A (en) * | 2012-11-15 | 2013-02-27 | 深圳华宏联创科技有限公司 | Traffic information predicting system for solving traffic jam |
| CN103914988A (en) * | 2013-01-04 | 2014-07-09 | 中国移动通信集团公司 | Traffic road condition data processing method, device and system |
| CN103914988B (en) * | 2013-01-04 | 2016-12-28 | 中国移动通信集团公司 | A kind of traffic road condition data processing method, device and system |
| CN104715600A (en) * | 2013-12-11 | 2015-06-17 | 香港生产力促进局 | Traffic data real-time transmission system and method based on M2V transmission protocol |
| CN105321344A (en) * | 2014-08-05 | 2016-02-10 | 中国电信股份有限公司 | Method, device and system of calculation of real time traffic status on the basis of information interaction |
| CN105321344B (en) * | 2014-08-05 | 2017-11-21 | 中国电信股份有限公司 | The methods, devices and systems of real-time road are calculated based on information exchange |
| CN104715628A (en) * | 2014-12-23 | 2015-06-17 | 上海语镜汽车信息技术有限公司 | Vehicle-mounted real-time road condition method and device based on positional relationship calculation |
| CN106251700A (en) * | 2016-08-23 | 2016-12-21 | 安徽联合安全科技有限公司 | A kind of barrier system for prompting mounted on the helmet |
| CN106353761A (en) * | 2016-08-23 | 2017-01-25 | 安徽联合安全科技有限公司 | Obstacle reminding system |
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Application publication date: 20110323 |