CN104504932A - Vehicle-mounted ad hoc network parking space publishing system combined with public transportation platform - Google Patents
Vehicle-mounted ad hoc network parking space publishing system combined with public transportation platform Download PDFInfo
- Publication number
- CN104504932A CN104504932A CN201410803144.0A CN201410803144A CN104504932A CN 104504932 A CN104504932 A CN 104504932A CN 201410803144 A CN201410803144 A CN 201410803144A CN 104504932 A CN104504932 A CN 104504932A
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- Prior art keywords
- bus
- vehicle
- parking
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
- G08G1/141—Traffic control systems for road vehicles indicating individual free spaces in parking areas with means giving the indication of available parking spaces
- G08G1/143—Traffic control systems for road vehicles indicating individual free spaces in parking areas with means giving the indication of available parking spaces inside the vehicles
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
Abstract
The invention discloses a vehicle-mounted ad hoc network parking space publishing system combined with a public transportation platform. The vehicle-mounted ad hoc network parking space publishing system is characterized by comprising a plurality of parking lot APs (Access Points) and a plurality of bus station APs, wherein the parking lot APs and the bus station APs are connected with a backbone network in a wired mode; a bus and the bus station APs are connected through an IEEE 802.11P network in a wireless mode; vehicle-mounted units are arranged on the bus, and two vehicle-mounted units are also connected through the IEEE 802.11P network in the wireless mode. The vehicle-mounted ad hoc network parking space publishing system can be used for publishing accurate parking information in time through the existing public transportation platform, is beneficial to centralized management and planning of the APs; a parking lot information publishing terminal is linked through utilizing an existing bus route platform, and the bus and a common vehicle are combined to form a vehicle unit, so that the vehicle-mounted ad hoc network is formed, thereby realizing the publishing and updating of parking information.
Description
Technical field
The present invention relates to a kind of vehicular ad hoc network parking stall delivery system in conjunction with public transport platform, belong to communication technical field.
Background technology
Along with the process of urbanization, automobile becomes the walking-replacing tool of more and more urbanite, per capita the climbing up and up of Automobile ownership ratio, and parking difficulty problem is also highlighted day by day.In life, because driver is not grasping in enough parking information situations, blindly, random searching parking site except traffic burden can be increased, also can cause further environmental pollution because of extra exhaust emissions.So how effectively to utilize existing communal facility, the combination of system in addition, obtaining parking information efficiently, is very necessary to solve the problem of city parking position.
Existing parking information obtains and usually relies on the acquisitions such as road display screen, internet, GPS navigation information, as application number is: carried out the search on parking stall in the patent of 201310545041.4 by platform of internet of things with predetermined.At vehicle termination by after wireless network module transmission request information, responded by platform of internet of things server, therefrom obtain GPS information, calculate the Distance Time that vehicle arrives parking stall, fed back to request vehicle, shortcoming is that period time delay is longer, and platform of internet of things server workload is large.
Application number is: the patent of 201210599228.8 provides the infosystem about parking stall by the communication between a kind of vehicle, its method is when request signal is inputted by driver, vehicle uses communication adapter in preset range, broadcast parking space request information, the vehicle berthed is passed to by multi-hop, the information being obtained its parking lot, place by the vehicle berthed is responded, and there is information inundation and inefficient problem.
Above method exists in the acquisition process of parking information that information time delay is longer makes that Information Communication efficiency declines, structure platform complexity causes the problems such as cost increase unavoidably.
Summary of the invention
Problem to be solved by this invention is that existing shutdown system information time delay is longer, and Information Communication efficiency is low, and structure platform is complicated.
In order to solve the problem, the invention provides a kind of vehicular ad hoc network parking stall delivery system in conjunction with public transport platform, it is characterized in that, comprising the multiple parking lot AP be connected with backbone network, multiple bus station AP; Parking lot AP is connected with backbone network in a wired fashion with bus station AP; Wirelessly be connected by IEEE 802.11p network between bus with bus station AP; Bus is provided with board units, is wirelessly connected equally between two board units by IEEE 802.11p network.
Preferably, described parking lot AP and bus station AP accesses backbone network all in a wired fashion, and parking information is uploaded by this interface by parking lot AP, and bus station AP downloads parking information by this interface.
Preferably, the quantity of described bus stop AP determines by through the bus number of this website, wagon flow closeness, parking stall demand degree; Bus station AP is with the public bus network by this station public transport, and the distance between parking lot and bus station is foundation, from the parking lot information meeting corresponding requirements from trunk for off the net year, controls the parking information quantity received.
Preferably, bus downloads parking lot information from described bus station AP, and corresponding record timestamp.
Further, be all wirelessly connected between bus with general vehicle, between vehicle with vehicle, mutual parking information in effective communication range, and by described update of time stamp corresponding informance, the validity of guarantee information.
The present invention proposes a kind of efficient parking stall inquiry system built based on IEEE 802.11 technology and bus feature.Its advantage major embodiment is in following two aspects:
Take full advantage of existing public transport platform facility.Select the reason of this platform to be: bus, except the mobility with general vehicle, has special mobile environment and mobility: bus has fixing moving line, and can stop by each website on the way.Therefore, its movability is predictable.In the good situation of the magnitude of traffic flow, bus generally can remain a constant speed motion.Secondly, each bus can understand each site location on its vehicle line by dispatching center.Therefore bus station AP is utilized more efficiently can to propagate parking information between vehicle.
And utilize IEEE 802.11 technology passage to be deployed in bus station access point AP (Access Point) to provide backbone network access service.It is advantageous that, first is that networking expense is lower, and the price of AP is only hundreds of unit, and the 2nd IEEE 802.11 technical service bandwidth is higher.Three, IEEE 802.11 technology uses free ISM band.
AP is placed in each bus stop.The quantity of AP is determined by the factor such as bus number, wagon flow closeness, parking stall demand degree through this website.In order to avoid interference, the use channel difference (IEEE 802.11p standard can support 6 service channels, 1 control channel) of each adjacent AP.Hot spot region (such as, multi-line cross website, bus dispatching center, railway station etc.), bus flow is comparatively large, can arrange multiple AP and select to communicate for bus.
When a bus starts from the starting station, access the wireless vehicle mounted net based on public transport platform by website AP; Receiving trap on bus starts download or upgrade real-time parking information.Bus herein is all carried out single AP and is connected.Namely single AP connection refers to no matter website has multiple or single AP, and a bus sailing this website AP overlay area into only can connect an AP, until bus sails out of this website AP overlay area.The replacing of AP can not be carried out therebetween.After this, bus often through a bus station AP, switches automatically; In the process that whole vehicle travels, although constantly switch, vehicle remains the communication with bus station AP.In order to simplified network structure to describe the problem, between the website of our hypothesis distant on route (as crossed over bridge), have employed the measure expanded scope such as emissive power, use high power antenna heightening AP.The vehicle time enough Download Info of the information interaction being.
Bus downloads parking lot information from bus station AP, and corresponding record timestamp.All wirelessly being connected between bus with general vehicle, between vehicle with vehicle, comprising timestamp information when exchanging parking information each other.Mutual parking information in communication range effectively, and by update of time stamp corresponding informance, the validity of guarantee information.When mutual parking information, first judge the timestamp of information, the information of vehicles in evening download time early time, the information of vehicles in evening time is constant.To only have between regulation vehicle and vehicle on same direction mutual just can, bus and vehicle can carry out alternately in the other direction.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of vehicular ad hoc network parking stall delivery system in conjunction with public transport platform provided by the invention.
Embodiment
For making the present invention become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
Embodiment
As shown in Figure 1, be the schematic diagram of a kind of vehicular ad hoc network parking stall delivery system in conjunction with public transport platform provided by the invention, comprise 2 the parking lot AP be connected with backbone network 1,2 bus station AP; Parking lot AP is connected with backbone network 1 in a wired fashion with bus station AP; Wirelessly be connected by IEEE 802.11p network between bus with bus station AP; Bus is provided with board units, is wirelessly connected equally between two board units by IEEE 802.11p network.Parking lot AP 1, parking lot AP 2 22 access backbone network 1 all in a wired fashion with bus station AP 1, bus station AP 2 32, two parking lot AP are based on parking lot current parking stall information, by interface, parking information is uploaded to backbone network 1, and two bus station AP pass through the parking information that backbone network 1 interface downloads parking lot.
Bus stop AP is based on the public bus network by this station, and the distance between parking lot and bus station, downloads parking lot and parking lot information from from backbone network 1.
Because the bus number through bus station AP 1 place, wagon flow closeness are all little, so this bus station is provided with an AP.
When bus 104 starts from the starting station, access the wireless vehicle mounted net based on public transport platform by bus station AP 1; Receiving trap on bus 104 starts to download or upgrade parking lot 1 and parking lot 2 102 parking information in real time.The bus sailing bus station AP 1 overlay area into only can connect this AP, until bus sails out of this website AP overlay area.Enter bus station AP 2 32 overlay area, automatically switch.In the process that whole vehicle travels, although constantly switch, vehicle remains the communication with bus station AP.In order to simplified network structure to describe the problem, suppose between website distant on route, have employed the measure expanded scope such as emissive power, use high power antenna heightening AP, improve the coverage of network, eliminate blind spot as far as possible.So just can suppose the AP effective coverage range of website at least reach two stop spacings from half, after a website, often namely face the switching select permeability of next website AP.
Bus 104 downloads the information in parking lot 1 and parking lot 2 102 from bus station AP 1, and corresponding record timestamp.All in communication range effectively, Information Communication is carried out by the mode of wireless multi-hop between bus 104 and vehicle 4 105, between vehicle 4 105 and vehicle 1, and by update of time stamp corresponding informance, the validity of guarantee information.Regulation only carries out Information Communication between vehicle in the same direction, alleviates inundation and produces unnecessary expense.Vehicle 2 107 because direction is different, does not carry out the mutual of information with vehicle 3 108.
Claims (5)
1. in conjunction with a vehicular ad hoc network parking stall delivery system for public transport platform, it is characterized in that, comprise the multiple parking lot AP be connected with backbone network (1), multiple bus station AP; Parking lot AP is connected with backbone network (1) in a wired fashion with bus station AP; Wirelessly be connected by IEEE802.11p network between bus with bus station AP; Bus is provided with board units, is wirelessly connected equally between two board units by IEEE802.11p network.
2. the vehicular ad hoc network parking stall delivery system in conjunction with public transport platform according to claim 1, it is characterized in that, described parking lot AP and bus station AP accesses backbone network (1) all in a wired fashion, parking information is uploaded by this interface by parking lot AP, and bus station AP downloads parking information by this interface.
3. the vehicular ad hoc network parking stall delivery system in conjunction with public transport platform according to claim 1, is characterized in that, the quantity of described bus stop AP determines by through the bus number of this website, wagon flow closeness, parking stall demand degree; Bus station AP is with the public bus network by this station public transport, and the distance between parking lot and bus station is foundation, from downloading the parking lot information meeting corresponding requirements from backbone network (1), controls the parking information quantity received.
4. the vehicular ad hoc network parking stall delivery system in conjunction with public transport platform according to claim 1, is characterized in that, bus downloads parking lot information from described bus station AP, and corresponding record timestamp.
5. the vehicle-mounted net parking information delivery system in conjunction with public bus network platform according to claim 4, it is characterized in that, all wirelessly be connected between bus with general vehicle, between vehicle with vehicle, mutual parking information in effective communication range, and by described update of time stamp corresponding informance, the validity of guarantee information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410803144.0A CN104504932A (en) | 2014-12-18 | 2014-12-18 | Vehicle-mounted ad hoc network parking space publishing system combined with public transportation platform |
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| CN201410803144.0A CN104504932A (en) | 2014-12-18 | 2014-12-18 | Vehicle-mounted ad hoc network parking space publishing system combined with public transportation platform |
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| CN104504932A true CN104504932A (en) | 2015-04-08 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105741607A (en) * | 2016-04-19 | 2016-07-06 | 东华大学 | Excitation-based method for discovering VANETs indoor parking space |
| CN105788354A (en) * | 2016-04-19 | 2016-07-20 | 东华大学 | VANET-based indoor parking space discovering and booking method |
| CN106372757A (en) * | 2016-09-13 | 2017-02-01 | 哈尔滨工程大学 | Complete distributed charging scheduling management method based on mobile public transportation buses |
| CN107018083A (en) * | 2016-11-17 | 2017-08-04 | 中华物联网股份有限公司 | Multi-multipoint packet-switched network system and packet-switched wireless networks Wireless Router |
| CN110222135A (en) * | 2019-06-06 | 2019-09-10 | 武汉元光科技有限公司 | Public bus network station data accuracy determination method and device |
| CN110281916A (en) * | 2019-05-10 | 2019-09-27 | 百度在线网络技术（北京）有限公司 | Control method for vehicle, device and storage medium |
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| CN103093642A (en) * | 2013-01-06 | 2013-05-08 | 福建师范大学 | Parking lot information issuing device based on vehicle-mounted ad hoc network |
| CN103971538A (en) * | 2014-05-20 | 2014-08-06 | 广州杰赛科技股份有限公司 | Intelligent parking management system based on vehicular communication |
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| CN101925797A (en) * | 2008-01-21 | 2010-12-22 | 株式会社建伍 | Delivery system and in-vehicle unit |
| WO2009104663A1 (en) * | 2008-02-21 | 2009-08-27 | 株式会社ケンウッド | Information providing system, terminal for transmitting/receiving information, and information providing method |
| KR101072353B1 (en) * | 2010-09-27 | 2011-10-11 | 서동산업(주) | System and method for managing unmanned parking use car navigation system |
| CN103093642A (en) * | 2013-01-06 | 2013-05-08 | 福建师范大学 | Parking lot information issuing device based on vehicle-mounted ad hoc network |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105741607A (en) * | 2016-04-19 | 2016-07-06 | 东华大学 | Excitation-based method for discovering VANETs indoor parking space |
| CN105788354A (en) * | 2016-04-19 | 2016-07-20 | 东华大学 | VANET-based indoor parking space discovering and booking method |
| CN105788354B (en) * | 2016-04-19 | 2018-02-23 | 东华大学 | A kind of indoor parking position based on VANET is found and reserving method |
| CN106372757A (en) * | 2016-09-13 | 2017-02-01 | 哈尔滨工程大学 | Complete distributed charging scheduling management method based on mobile public transportation buses |
| CN107018083A (en) * | 2016-11-17 | 2017-08-04 | 中华物联网股份有限公司 | Multi-multipoint packet-switched network system and packet-switched wireless networks Wireless Router |
| CN110281916A (en) * | 2019-05-10 | 2019-09-27 | 百度在线网络技术（北京）有限公司 | Control method for vehicle, device and storage medium |
| CN110222135A (en) * | 2019-06-06 | 2019-09-10 | 武汉元光科技有限公司 | Public bus network station data accuracy determination method and device |
| CN110222135B (en) * | 2019-06-06 | 2021-03-02 | 武汉元光科技有限公司 | Bus route station data accuracy determination method and device |
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Application publication date: 20150408 |