CN1395225A - Bus running location visualizable system, its method and equipment - Google Patents
Bus running location visualizable system, its method and equipment Download PDFInfo
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- CN1395225A CN1395225A CN 02112611 CN02112611A CN1395225A CN 1395225 A CN1395225 A CN 1395225A CN 02112611 CN02112611 CN 02112611 CN 02112611 A CN02112611 A CN 02112611A CN 1395225 A CN1395225 A CN 1395225A
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Abstract
The invented visual system as well as the method and the devices for locating the running bus realizes the geographic location o the public traffic bus by use of the existed wired telephone line, micropower wireless spread spectrum techinque and shared cordless telephone channel. Combining the wireless spread spectrum communication with the wired telephone communication mode realizes the information transmission among the buses, the bus stations and the bus directorial dispatching center as well as displays the dynamic time os buses arriving stations on the electric map. Thus the dispatcher can monitor buses, and passengers know the running state of buses in good times. The system possesses the features of high noise immunity, high reliability and low cost.
Description
One, technical field
The present invention is a kind of micropower wireless frequency expansion technology of utilizing, and shares the wireless phone channel, realizes the operating geographic positioning of bus with fixed target; Being that a kind of employing is wireless combines with the wire communication mode, realizes the information transmission between bus, public transport platform and the bus command scheduling center, and the method for bus running location visualizable.Possession reason locating information is obtained and process field.
Two, background technology
Along with the acceleration of urbanization process, urban population increases considerably, and it is very outstanding that the traffic problems in city seem.People wait in expectation economy, public transit system efficiently.And, very big improvement having been arranged these years with regard to image appearance as the bus of one of city image, quantity has also increased considerably, but its service quality is still waiting further raising.People can often find that several buses on the same sometimes public bus network almost arrive at a station simultaneously when the public transport platform is waited, sometimes waits half a day and also can not see a car to arrive at a station, and bus is safe and punctual to be exactly the problem of citizen's concern for a long time.
Adopt new and high technology, the control and command of realizing bus running is the direction that make great efforts at present a lot of cities.At present, existing relevant patent, as the patent No. 99217398.1 " moving target locating and monitoring device ", utilizing the GPS global positioning system to unify, GSM short message/private wireless communication system is integrated realizes the visual command scheduling of public transport and passenger's visual supervision.Utilize this system, the yardman at the command scheduling center of bus can observe the public transit vehicle position of travelling on each bar public bus network by screen, bus driver is as traffic congestion, bad car, can by wireless telecommunication system directly and scheduling get in touch, in time take measures by the yardman, guarantee that the operation order is safe and punctual.This system as farsighted person, can recognize the waiting time of bus trip transport power situation, estimation oneself for the yardman at the command scheduling center of bus for the passenger.
But said system requires GPS receiver and GSM transceiver or Wireless Telecom Equipment all will be installed on each bus, utilizes GSM short message or special-purpose wireless channel, sets up bus, public transport platform and bus command scheduling center and writes to each other.Two problems usually appear in this mode, and the one, the time-delay of short message may be delayed time a few minutes when serious, even longer; The 2nd, under the many situations of the bus of bus command scheduling center monitoring, can cause signal path to block, cause signal lag, at this moment the position of the bus that shows in Surveillance center may differ greatly with physical location at that time, even several kilometers.Like this, even the positional precision of the moving target that GPS measures may be very high, the shown positional precision of monitoring center then is difficult to satisfy to the bus requirement of monitoring in real time.In addition, owing to GPS, GSM cost height, though the each cost of GSM short message is low, often, operating cost is also higher.So based on the performance issue of the bus visualization system of GPS, GSM short message/dedicated wireless channel, and construction cost and operating cost total amount are big, will hinder the popularization of public transport visualization technique and the raising of transit quality of service.
Also have and use wireless and wired combining realized the method for motor vehicle geo-location, as number of patent application 98111625.6, electronic geographic-information positioning method and device.The reliability of its method is low, adopts the wire transmission mode of DTMF more at vehicle, just can't use when data volume is big slightly.
Three, summary of the invention
(1) the object of the invention
The objective of the invention is to utilize wireless communication technology to realize the geo-location of bus in moving process, adopt radio spread spectrum communication to combine, the dynamic and visual of information transmission between realization bus, public transport platform and the bus command scheduling center and bus running location with wire telephony line communication mode.Both satisfied operation monitoring and the command scheduling of bus command scheduling center to bus, satisfy again the passenger that waits in time understand bus on the circuit with ruuning situation.Realize that the bus running positioning system makes up and the working service low cost, high-performance is the important means that solves future city transport information construction.
(2) inventive principle
Wireless frequency expansion transceiver of the present invention, the micropower radio spread spectrum communication technology that employing need not to apply for, realize the geo-location of bus with the certain characteristics of its micropower emission radius, promptly with the geographic position of laying on the public transport platform and represent bus running arrival in the position of the wire telephony line point of public bus network known geographic coordinate along the line.Adopt the radio communication of the wireless phone channel of sharing to combine with the wire-telephony mode, realize between bus, public transport platform and the bus command scheduling center in real time, information transmission quasi real time, the bus running location visualizable system that under the support of Geographic Information System, makes up.
(3) Fa Ming scheme
Utilize the wire telephony line of having laid on the urban road, on the platform on the public bus network and platform between by the road about 200m, select for use have geographic position X, the telephone wire point of Y coordinate.
On bus, integrated wireless spread spectrum transceiver and data processor, data processor storage, processing and control send and comprise bus information such as bus numbering, operation conditions, control simultaneously receives and management comes on the public bus network platform along the line and the Back ground Information of the fixed target telephone wire point that the other telephone wire point of road is sent, and comprises the numbering, geographic coordinate of telephone wire point etc.The wireless frequency expansion transceiver is responsible for the wireless transmission of the information of finishing.
Electric hot line point on public bus network, integrated wireless spread spectrum transceiver, data processor and wire line MODEM.The management of data processor controlled information transmit-receive and transmission and transceive data; The wireless frequency expansion transceiver receives the information that bus is sent, and sends the information at command scheduling center to bus.Wire line MODEM connects telephone wire, comprises the information of the bus that receives to bus command scheduling central transmission, and the Back ground Information of telephone wire point, comprises its numbering, geographic coordinate etc., the information of mind-set bus transmission in the transmission command scheduling.
On the public transport platform, integrated wireless spread spectrum transceiver, wire line MODEM, data processing and display.The wireless frequency expansion transceiver receives the information that bus is sent, to the information of bus outbound platform Back ground Information and the transmission of bus command scheduling center.Data processor is used to store and handle the information from bus, the Back ground Information of self and the information from bus command scheduling center, the demonstration of control information transmission and reception and data.Display is used for particular location and time of dynamically showing that bus running arrives on the relevant public bus network, and in each platform regulation time that should arrive etc. on the way, has relevant query and search function.Wire line MODEM connects telephone wire, comprises the information of the bus that receives to bus command scheduling central transmission, and the Back ground Information of telephone wire point, the information of mind-set bus transmission in the transmission command scheduling.
At bus command scheduling center, system is made up of cable data interface, basic Geographic Information System, public bus network management Geographic Information System and public bus network wire telephony line point along the line geo-location management system.By the wire telephony data-interface, the information of the bus that reception sends from public bus network each telephone wire point along the line and the information of corresponding telephone line point, and store in the telephone wire point geo-location management system, based on basic Geographic Information System, public bus network management Geographic Information System, on electronic chart, dynamically show particular location and the time that bus running arrives, show the time that platform planning on the way should arrive, have corresponding query and search function.
(4) technique effect
1. the antijamming capability of system is strong.Wireless transceiver adopts the wireless frequency expansion technology, the micropower emission, and this kind communication mode need not be applied for to radio control department existing communication signal and almost not influence of channel.
2. the free frequency resource of sharing.The frequency range that wireless transceiver uses is the free wireless phone channel of sharing, and this channel does not need to apply for to radio control department yet.
3. the reliability of system strengthens, and is easy to use.System adopts radio spread spectrum communication mode and the wired mode of phone to carry out information transmission, makes the information transmission efficiency of system, information transmitted amount obtain increasing substantially, and reliability strengthens.
4. the enforcement of this system is cheap.Because information transmission between public transport platform, telephone wire point and bus command scheduling center does not need to pass through programme-controlled exchange, so system do not produce the wire communication expense, and only needs few circuit cost of use.Realize the bus running positioning system with using common wireless means, reach GPS and compare, differ several times, tens times with the cost of the bus running positioning system of GSM composition.Has good economical and practical value.
5. increased the security of geo-localisation information.Basic geography information in the native system, telephone wire point geo-localisation information etc. can use city independence geographic coordinate reference system, have increased the security of geography information on certain meaning, have increased the possibility of the geographical information sharing of high precision.
Four, description of drawings Fig. 1 is the bus running location visualizable system synoptic diagram that radio spread spectrum communication combines with phone wire communication mode.Fig. 2 is the circuit theory diagrams of bus part.Fig. 3 is the circuit theory diagrams of public transport platform part.Fig. 4 is the telephone wire point circuit theory diagrams of laying on the road side between the platform on the public bus network partly.Fig. 5 is that synoptic diagram is formed at bus command scheduling center.
Five, the bus running visualization system constitutes
System of the present invention is made up of four parts, and promptly the vehicle-mounted part U1 of bus comprises wireless frequency expansion transceiver U1-1, data processor U1-2 and data-carrier store U1-3; Public transport platform part U2 comprises spread spectrum radio transceiver U2-1, wire line MODEM U2-2, data processor U2-3 and data-carrier store U2-4 and data display equipment U2-5; Public bus network telephone wire point part along the line U3 comprises wireless frequency expansion transceiver U3-1, data processor U3-2, data-carrier store U3-3 and wire line MODEM U3-4; Bus command scheduling center U4 comprises wired data-interface U4-1, Geographic Information System U4-2 (comprising basic Geographic Information System, public bus network management Geographic Information System and public bus network wire telephony booth along the line geo-location management system) and graphic alphanumeric display U4-3.As shown in Figure 1.
Integrated wireless spread spectrum transceiver and data processor on bus, vehicle operation informations such as various instrument and meters, voice, video on the bus of data processor storage and processing.The wireless frequency expansion transceiver adopts the micropower emission, and the bandwidth that transmits covers 46MHz wireless phone channel (this frequency can be adjusted as required), the emission radius is 50m.This transmitter spread spectrum transceiver module STEL2000A forms.Data processor is made up of 87C51 and SRAM6264.The wireless frequency expansion transceiver has solidified the Back ground Information of bus, and constantly these information is sent, and in addition, will be stored in when needing at bus command scheduling center that bus running information sends to bus command scheduling center in the data processor.Receive to be laid on the platform on the public bus network simultaneously and the other telephone wire point of road sends, the Back ground Information of telephone wire point comprises the numbering, geographic coordinate of telephone wire point etc., and available fixing telephone wire point geographic position replaces the geographic position of bus.
On along the line between the public transport platform, every about 200 meters, the wire telephony line point with geographic position X, Y coordinate be set, and wireless frequency expansion transceiver, data processor and wire line MODEM are integrated on these telephone wire points.The wireless frequency expansion transceiver adopts the micropower emission, transmits to cover 46MHz wireless phone channel, and the emission radius is 50m.This transmitter is made up of spread spectrum module STEL2000A.Data processor is made up of 87C51 and SRAM6264.Wire line MODEM is made up of the RCV144AF module.Duplex mode is adopted in the transmission of wire telephony line, and data speed can be reached 14400bps.The management of data processor controlled information transmit-receive and transmission and transceive data; The wireless frequency expansion transceiver receives the information that bus is sent, and sends the information at command scheduling center to bus.Wire line MODEM connects telephone wire, comprises the information of the bus that receives to bus command scheduling central transmission, and the Back ground Information of telephone wire point, comprises its numbering, geographic coordinate etc., the information of mind-set bus transmission in the transmission command scheduling.
Wireless frequency expansion transceiver, wire line MODEM, data processing go up identical along the line with public transport on the public transport platform.Increase the bus dynamic display.
Bus command scheduling center is made up of cable data interface, basic Geographic Information System, public bus network management Geographic Information System and public bus network wire telephony line point along the line geo-location management system.The cable data interface is made up of a plurality of modulation module RCV144AF of corresponding each wire telephony line point.Public bus network information is stored, manages and analyzed to geo-spatial data storage and management basis geography information, public bus network management Geographic Information System, and the storage of public bus network wire telephony line point along the line geo-location management system, management and analysis telephone wire are put dynamic information.By wired electric live data interface, receive the information of the bus that sends from public bus network each telephone wire point along the line and the information of corresponding telephone line point, and store in the telephone wire point geo-location management system.Its corresponding relation is the some telephone wire points on a certain the public bus network, the information that the public transport platform at a time receives a certain bus, then represents this moment, the residing geographic position of this bus with the geographic position of this telephone wire point, public transport platform.For example, on 35 road public bus networks, (geographic coordinate is X to No. 8 telephone wire point
8, Y
8), 12 Back ground Informations that receive bus A at noon, the A car on 35 road public bus networks 12 geographic position at noon is X
8, Y
8Based on basic Geographic Information System, public bus network management Geographic Information System, dynamically showing on each public bus network on the electronic chart, each bus shows the time that platform planning on the way should arrive in the residing position of different time, has corresponding query and search function.
Claims (5)
1. bus running location visualizable method and apparatus, the wireless frequency expansion transceiver that it is characterized in that the telephone wire point part U3 that the vehicle-mounted part U1 of bus, public transport platform part U2 and public bus network are along the line, this transceiver utilizes the micropower spread spectrum radio, share the wireless phone channel, about 50 meters of its wireless frequency expansion micropower emission radiuses are represented the geographic position that bus running arrives by the geographic position of fixing public transport platform, telephone wire point.
2. a bus running location visualizable system method and apparatus is characterized in that comprising wireless frequency expansion transceiver U1-1, data processor U1-2 and data-carrier store U1-3 by the vehicle-mounted part U1 of bus; Public transport platform part U2 comprises spread spectrum radio transceiver U2-1, wire line MODEM U2-2, data processor U2-3 and data-carrier store U2-4 and data display equipment U2-5; Public bus network telephone wire point part along the line U3 comprises wireless frequency expansion transceiver U3-1, data processor U3-2, data-carrier store U3-3 and wire line MODEM U3-4; Bus command scheduling center U4 comprises wired data-interface U4-1, Geographic Information System U4-2 and graphic alphanumeric display U4-3.
3. bus running location visualizable system method and apparatus, it is characterized in that utilizing the radio spread spectrum communication technology in conjunction with wired electric hot line communication mode, realize the information transmission between bus, public transport platform, public bus network telephone wire point along the line and the bus command scheduling center, the information of the information of bus and telephone wire point fixed target in the command scheduling center processing, is dynamically shown the residing geographic position of bus on each public bus network at electronic chart.Realize the information transmission between bus command scheduling center and the public transport platform, with the position of the bus on the public bus network relevant, the moment that arrives each station and planning with a certain platform arrive each station the time be engraved in dynamically demonstration on the electronic chart.
4. according to right 1,2,3 described a kind of bus running location visualizable method and apparatus, it is characterized in that utilizing the wire telephony line of having laid on the urban road, pressing every about 200m on the platform on the public bus network and between the platform, the telephone wire point with geographic position X, Y coordinate is set.
5. according to right 1,2,3 described a kind of bus running location visualizable system method and apparatus, it is characterized in that the Back ground Information of the wireless frequency expansion transceiver emission of bus part comprises bus numbering, operation conditions etc.The essential information that public transport platform, wire telephony line point are gone up the emission of wireless frequency expansion transceiver comprises bus station's platform, telephone wire point numbering, geographic position X, Y coordinate etc.
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| CN 02112611 CN1395225A (en) | 2002-01-29 | 2002-01-29 | Bus running location visualizable system, its method and equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02112611 CN1395225A (en) | 2002-01-29 | 2002-01-29 | Bus running location visualizable system, its method and equipment |
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| CN1395225A true CN1395225A (en) | 2003-02-05 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG119204A1 (en) * | 2003-12-05 | 2006-02-28 | Nanyang Polytechnic | Vehicle arrival notification system |
| CN100357878C (en) * | 2005-06-08 | 2007-12-26 | 武汉虹信通信技术有限责任公司 | Moving target quick visualization method based on GIS system |
| CN100409269C (en) * | 2005-04-15 | 2008-08-06 | 吴克 | Method for issuing bus running information and apparatus thereof |
| CN101140700B (en) * | 2007-10-08 | 2010-06-30 | 王中楼 | Public transport operation management system |
| CN101105529B (en) * | 2007-07-10 | 2010-11-24 | 中兴通讯股份有限公司 | Public transport position finding method and system |
| CN101958054A (en) * | 2010-09-29 | 2011-01-26 | 郑冬冬 | Public traffic information management system |
| CN103426296A (en) * | 2012-05-18 | 2013-12-04 | 李志恒 | System and method using windscreen projection to increase accuracy of bus rapid transit scheduling |
| CN106355872A (en) * | 2016-11-20 | 2017-01-25 | 广西大学 | Intelligent public transport management system and application |
-
2002
- 2002-01-29 CN CN 02112611 patent/CN1395225A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG119204A1 (en) * | 2003-12-05 | 2006-02-28 | Nanyang Polytechnic | Vehicle arrival notification system |
| CN100409269C (en) * | 2005-04-15 | 2008-08-06 | 吴克 | Method for issuing bus running information and apparatus thereof |
| CN100357878C (en) * | 2005-06-08 | 2007-12-26 | 武汉虹信通信技术有限责任公司 | Moving target quick visualization method based on GIS system |
| CN101105529B (en) * | 2007-07-10 | 2010-11-24 | 中兴通讯股份有限公司 | Public transport position finding method and system |
| CN101140700B (en) * | 2007-10-08 | 2010-06-30 | 王中楼 | Public transport operation management system |
| CN101958054A (en) * | 2010-09-29 | 2011-01-26 | 郑冬冬 | Public traffic information management system |
| CN101958054B (en) * | 2010-09-29 | 2011-12-28 | 郑冬冬 | Public traffic information management system |
| CN103426296A (en) * | 2012-05-18 | 2013-12-04 | 李志恒 | System and method using windscreen projection to increase accuracy of bus rapid transit scheduling |
| CN103426296B (en) * | 2012-05-18 | 2015-07-01 | 李志恒 | System and method using windscreen projection to increase accuracy of bus rapid transit scheduling |
| CN106355872A (en) * | 2016-11-20 | 2017-01-25 | 广西大学 | Intelligent public transport management system and application |
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