EP1297514A1 - System and method for traffic information - Google Patents
System and method for traffic informationInfo
- Publication number
- EP1297514A1 EP1297514A1 EP01943101A EP01943101A EP1297514A1 EP 1297514 A1 EP1297514 A1 EP 1297514A1 EP 01943101 A EP01943101 A EP 01943101A EP 01943101 A EP01943101 A EP 01943101A EP 1297514 A1 EP1297514 A1 EP 1297514A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- data
- traffic
- traffic information
- road
- images
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
Definitions
- the invention relates to a traffic information method for creating and sending traffic data, a navigation method using such a traffic information method, a traffic information system and a navigation system for using the navigation method.
- navigation systems or traffic information systems are known in which a route can be determined on the basis of current position data and selected destination data.
- the transmission of traffic information via radio is known, in which at least the larger routes, in particular the highways, are transmitted at periodic intervals nationwide or in the transmission range of the respective radio program for relevant traffic data.
- Traffic information can also be made available via the service of a mobile radio operator, a user - generally after registration - being able to receive special traffic data from a regional area when called. Traffic information can thus be queried by a user at any time without having to wait for the periodic transmission of traffic news, for example.
- a user can in particular use the traffic information transmitted on radio or via a mobile radio operator.
- traffic reports are often out of date, e.g. several hours old and sometimes faulty.
- the information generally relates to relatively long sections and is therefore inaccurate with regard to the respective location and, moreover, imprecise with regard to the extent of the congestion and the possible delay in travel time.
- temporary impairments of radio or mobile communications e.g. when passing through a tunnel, it is generally difficult or even impossible to receive the traffic information data, so that traffic jam reports can be received too late or not at all.
- the invention has for its object to provide improvements over the prior art and in particular an accurate and reliable method for Creation and transmission of traffic data and to create a corresponding traffic information system.
- traffic information methods for creating and sending out traffic data of a traffic area in which road traffic images are recorded by a large number of stationary cameras arranged at stationary camera positions in the linking area, first traffic data, the first traffic data of the stationary ones, are formed from the recorded road traffic images and position data of the camera positions Cameras are transmitted to at least one central control unit, traffic information data are formed from the first traffic data and the traffic information data are transmitted as radio signals for mobile users via at least one transmission device.
- the camera positions can be arranged at least approximately uniformly, in particular, over the traffic area. It is advantageous to at least largely cover the traffic area, which can generally only be achieved with the aid of mobile cameras.
- the mobile cameras can be used in particular on motor vehicles, i.e. be attached to passenger cars and trucks.
- the cameras can on the one hand reproduce the driver's field of vision or be arranged on the roof of the respective vehicle and thus a larger one
- Second traffic data can then be formed from the recorded second road traffic images and second position data of the vehicles, which are forwarded to the one or more central control devices in accordance with the first traffic data.
- the second traffic data can be be sent to the central control units at intervals; it is furthermore possible, instead or in addition, to call up the second traffic data at specific send positions, so that at least essentially identical positions of the second traffic data can be reached.
- the traffic information data can be transmitted permanently or periodically by the at least one transmission device
- Broadcast signals are sent out on one side. It is also possible as an alternative or in addition to this, traffic data e.g. to be sent via a mobile network at the request of a road user. In this case, the traffic data relevant to the respective road user can be sent out.
- the road user can advantageously state his current position and possibly a destination, whereupon the central control device 20 determines a travel route on the basis of this data and the traffic data and the travel route data to the road user via e.g. can transmit the cellular network.
- the road user uses the navigation method according to the invention, in which he records the traffic information data recorded with the data from his or her location. ., n; , tion system, for example a GPS system and or he compares certain position data with a GSM system and thus
- this traffic information data can directly contain the first and or second road traffic images, so that the road user knows the respective driving situation
- the road user can receive selected traffic data from the central control device were determined from the traffic data.
- the number of vehicles in the respective images can be recognized from the traffic data, in particular by automatic image recognition by the central control device, and a traffic density in the respective areas can be inferred from this.
- a dynamic evaluation of the traffic images can also determine the driving speed of the detected vehicles and thus further differentiate between a traffic jam and a high volume of traffic.
- the road user can in particular also serve as a carrier of a mobile camera and thus on the one hand record traffic data in a traffic network system and transmit it to the central processing units and on the other hand benefit from the traffic information data transmitted and thereby calculate a route.
- stationary cameras 1 are provided at different camera positions A, B, C, D.
- the stationary cameras can e.g. can be installed on a mast at the edge of the lane, on traffic islands or in the lane median. Attachment to bridges, buildings etc. is also possible.
- the cameras can have both a digital and an analog recording method. They can be powered in particular by solar power.
- the stationary cameras 1 each deliver first road traffic images sl, which they together with suitable ones
- the position data can be a respective abbreviation of the camera in question or it can also contain geographic data.
- the first road traffic images sl with the first position data pl are forwarded as first traffic data vl.
- Second traffic data v2 are formed from the second road traffic images s2 and the second position data p2 and are forwarded via second transmission devices 18. Forwarding the first Traffic data vl and second traffic data v2 can take place, for example, via a mobile radio network, or also - in particular in the case of the stationary cameras 1 - via a dedicated line, for example a telephone line.
- the first traffic data vl and second traffic data v2 are sent to a central control unit 4, which has a receiving device (not shown in FIG. 1).
- the central control unit 4 has a central storage unit 10 and a central one
- the traffic data vl, v2 are recorded by the central storage unit 10 and temporarily stored. You will then - e.g. periodically - recorded by the central processing unit 11 and processed in the desired manner.
- the central storage device 10 can also be arranged behind the central processing unit 11, so that the evaluated traffic data are first temporarily stored.
- the radio signals can be broadcast signals, e.g. DVB (digital video broadcasting), DAB (digital audio broadcasting) or DMB (digital multimedia broadcasting) can be broadcast.
- DVB digital video broadcasting
- DAB digital audio broadcasting
- DMB digital multimedia broadcasting
- the central control unit 4 can equip the central control unit 4 with a receiving device for, for example, mobile radio signals and thus to enable a user to request the central control unit 4.
- the central control unit 4 can - as will be described further below - send the desired traffic information data to the respective road user via a corresponding radio signal, for example a mobile radio signal.
- the road traffic images sl, s2 or the corresponding traffic data vl, v2 can in particular be compressed before being sent to the central control unit 4, for example with the formats JPEG or MPEG-. In this way, video sequences, ie moving images, can also be transmitted by compression with, for example, MPEG-4.
- the traffic data vl, v2 can in particular be updated periodically, e.g. every 2-5 minutes.
- Traffic data can be transmitted or called up in particular at predetermined checkpoints, so that comparable road traffic images of different road users are recorded, whereby, however, the time intervals between the road traffic images are different.
- central control devices 4 which are responsible for different regional areas can advantageously be provided according to the invention. As a result, the amount of data in the traffic data and the traffic information data is kept smaller.
- the central control units can, in particular, evaluate the road traffic images in such a way that the number of the respective vehicles is determined in the images and thus a traffic density is determined. A jam may already be recognized by comparing successive images.
- video sequence images can also be used
- the stationary camera and possibly also mobile cameras can also record acoustic signals, for example driving signals from road users, and transmit them to the central control unit 4 be, from which the intensity and in particular frequency of road traffic noise can be used to infer the respective driving speed.
- the vehicles 6 record the traffic information data vi transmitted as radio signals from the transmitting device 5 via an antenna or radio receiver 14.
- the traffic information data vi are recorded in the navigation device 7 by a recording / output device 13 and forwarded to a navigation control device 16.
- the navigation control device 16 also receives a position signal pf from a location system or GPS 15 and can thus filter out the traffic information data of interest from a comparison of the traffic information data and position data.
- the relevant traffic information data include in particular the data of the respective regional environment and the route section between the vehicle position and the destination.
- the driver can input the destination via an input device (not shown) to a destination storage device 17 and can be called up as destination data z by the navigation control device 16.
- the driver information signals are output via a known display device of the navigation system.
- the respective driving recommendations for the planned route section and possible workarounds can be displayed.
- an estimated travel time can be calculated at a given speed and determined traffic density.
- the antenna 14 or from the
- Navigation device 7 of motor vehicle 6 makes an inquiry to the respective central control device 4 take place in which the position data pf of the motor vehicle 6 and possibly destination data z are specified.
- the central control unit 4 uses the mobile radio network to firstly calculate traffic information data of the regional area or the particular street used by the motor vehicle 6 and, in particular, a calculated optimal route between the current position of the motor vehicle 6 and the destination and as traffic information data vl via, for example a cellular network is broadcast.
- the driver can plan and change his route flexibly based on the current traffic data. He can e.g. Before each exit, decide whether to stay on the respective highway or to leave the highway due to the current traffic development.
- Various systems e.g. the transmission of a broadcast mode and a more specific mobile radio mode can be combined.
- the transmitted data can be encrypted or a respective code can be assigned to the registered recipients of a mobile radio system.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10030894 | 2000-06-23 | ||
DE10030894A DE10030894A1 (en) | 2000-06-23 | 2000-06-23 | Traffic information method uses analysis of images provided by cameras at defined locations in traffic network for providing traffic data |
PCT/DE2001/001872 WO2001099079A1 (en) | 2000-06-23 | 2001-05-18 | System and method for traffic information |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1297514A1 true EP1297514A1 (en) | 2003-04-02 |
EP1297514B1 EP1297514B1 (en) | 2004-10-06 |
Family
ID=7646714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01943101A Expired - Lifetime EP1297514B1 (en) | 2000-06-23 | 2001-05-18 | System and method for traffic information |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1297514B1 (en) |
JP (1) | JP2003536185A (en) |
DE (2) | DE10030894A1 (en) |
WO (1) | WO2001099079A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2399715A (en) * | 2003-03-20 | 2004-09-22 | Malcolm Bell | Traffic and road condition data capture and distribution system for a mobile telecommunications network |
DE102010030068A1 (en) * | 2010-06-15 | 2011-12-15 | Bayerische Motoren Werke Aktiengesellschaft | Method for processing e.g. image sequence in vehicle, involves transcoding image data received by vehicle, where transcoded image data is transmitted over wireless interface of vehicle |
JP5669767B2 (en) * | 2011-12-13 | 2015-02-18 | トヨタ自動車株式会社 | Information provision device |
CN105046955B (en) * | 2015-06-23 | 2018-08-31 | 章书毅 | A kind of acquisition system of the real-time automobile traffic road conditions of road |
CN105160875A (en) * | 2015-08-20 | 2015-12-16 | 南京安通杰科技实业有限公司 | Automobile accident information supply method |
CN105355034B (en) * | 2015-10-28 | 2018-06-15 | 重庆邮电大学 | A kind of scene of a traffic accident evidence collection and safety system and its method |
US11786647B1 (en) | 2022-01-31 | 2023-10-17 | Stryker Corporation | Medical waste collection systems, manifolds, and related methods |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2132515C (en) * | 1992-03-20 | 2006-01-31 | Glen William Auty | An object monitoring system |
JPH09180087A (en) * | 1995-12-25 | 1997-07-11 | Sumitomo Electric Ind Ltd | Traffic information provision system |
KR100224326B1 (en) * | 1995-12-26 | 1999-10-15 | 모리 하루오 | Car navigation system |
JPH10132598A (en) * | 1996-10-31 | 1998-05-22 | Sony Corp | Navigating method, navigation device and automobile |
JPH1131295A (en) * | 1997-07-14 | 1999-02-02 | Toshiba Corp | Road information management system and road information terminal equipment |
DE69921237T2 (en) * | 1998-04-30 | 2006-02-02 | Texas Instruments Inc., Dallas | Automatic video surveillance system |
JPH11353582A (en) * | 1998-06-04 | 1999-12-24 | Toyota Motor Corp | Image information transmitting method, traffic information providing system using the same, traffic information reception terminal equipment and moving object distribution information providing method |
-
2000
- 2000-06-23 DE DE10030894A patent/DE10030894A1/en not_active Withdrawn
-
2001
- 2001-05-18 DE DE50104009T patent/DE50104009D1/en not_active Expired - Lifetime
- 2001-05-18 WO PCT/DE2001/001872 patent/WO2001099079A1/en active IP Right Grant
- 2001-05-18 EP EP01943101A patent/EP1297514B1/en not_active Expired - Lifetime
- 2001-05-18 JP JP2002503846A patent/JP2003536185A/en active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO0199079A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2003536185A (en) | 2003-12-02 |
DE10030894A1 (en) | 2002-01-03 |
EP1297514B1 (en) | 2004-10-06 |
DE50104009D1 (en) | 2004-11-11 |
WO2001099079A1 (en) | 2001-12-27 |
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