CN103413445B - A kind of intelligent road traffic signal system - Google Patents
A kind of intelligent road traffic signal system Download PDFInfo
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- CN103413445B CN103413445B CN201310233387.0A CN201310233387A CN103413445B CN 103413445 B CN103413445 B CN 103413445B CN 201310233387 A CN201310233387 A CN 201310233387A CN 103413445 B CN103413445 B CN 103413445B
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Abstract
The invention discloses a kind of intelligent road traffic signal system, comprise crossing telegon and several smart machines, all be connected by road LAN (Local Area Network) between crossing telegon and smart machine, each smart machine, road LAN (Local Area Network) includes spider lines and wireless network, wireless network for WLAN (wireless local area network) and wireless mesh network combine or both one of; Crossing telegon is connected with traffic control center by wide area network.Adopt road LAN (Local Area Network) to connect crossing telegon and smart machine, when increasing certain and possessing the equipment of New function, only need can be realized by the configuration of software; Crossing telegon can be powered to each smart machine by road LAN (Local Area Network) simultaneously, decreases the complicacy of circuit, reduces manufacturing cost and improves reliability.
Description
Technical field
The present invention relates to intelligent transport system field, refer in particular to a kind of intelligent road traffic signal system.
Background technology
In existing road traffic, road traffic signal system is a kind of important infrastructure, plays crucial control action to the road in whole city.Roadway sign system is formed primarily of signal lamp, signal controlling machine and signal control software design.Traditional signal lamp adopts incandescent lamp, and Halogen lamp LED, as light source, controls 220 volts of ac power switch realization controls to roadway sign by signal controlling machine.
The function of existing road signal system is just determined when designing or install and implementing, and such system is functionalization but not intelligentized, lacks expandability.Often need when needs increase certain New function to transform signal controlling machine hardware or change.
China Patent Publication No. CN102289942A, publication date on Dec 21st, 2011, name is called " road traffic signal control device, the method of operation, method and network " in disclose a kind of road traffic signal control device, the method of operation, method and network, control at the one stage signal machine of crossing intersection part, in computer-controlled second signal lamp, arrange grade crossing signal in the middle of one-level to control, composition three grades, crossing place LAN signal control system, first order intersection annunciator connects second level grade crossing signal, the second level connects third level signal lamp, numeral is adopted to connect, connected mode divides Star Network, bus structure or star-like, bus hybrid network form.Star-like, bus, star bus mixing LAN is formed at crossing place; The data transfer signal that crossing place has is all digital transmission.This invention signal controlling machine possesses in real time and the energy of multitask, but this signal controlling machine still lacks extendability, and function is comparatively limited, is not suitable for the demand that intelligent transportation needs New function to expand.
Summary of the invention
The object of the invention is to overcome traffic signal system extendability in prior art poor, comparatively waste time and energy when increasing New function, the defect that cost is higher, provides a kind of intelligent road traffic signal system, and this system can expand new function flexibly, time saving and energy saving.
The object of the invention is to be achieved by following technical proposals:
A kind of intelligent road traffic signal system, comprise crossing telegon and several smart machines, all be connected by road LAN (Local Area Network) between crossing telegon and smart machine, each smart machine, road LAN (Local Area Network) includes spider lines and wireless network, wireless network for WLAN (wireless local area network) and wireless mesh network combine or both one of; Crossing telegon is connected with traffic control center by wide area network.Crossing telegon and smart machine are connected by road LAN (Local Area Network) and work in coordination with, and complete respective function.When increasing certain and possessing the equipment of New function, only need can be realized by the configuration of software.This configuration can plug and play form complete automatically, just equipment connection can be entered among road LAN (Local Area Network).
Wireless network adopts standard radio communications protocol, such as, based on the WLAN (wireless local area network) that IEEE802.11x agreement forms, also can be form wireless mesh network by special short range communication technology.The wireless mesh network adopting special short range communication technology to form possess network delay low, connect the advantages such as easy, be more suitable for adopting in road LAN (Local Area Network).
Cable network can adopt IEEE802.3af standard, and this standard allows to carry 48VDC direct current supply in ethernet networks, so just can also meet intelligent road equipment power demands while providing communication to connect.Cable network also can adopt other forms of low-voltage power supply and communication, and such as, adopt 12VDC or 24VDC etc., communication then can adopt RS232 or RS485 standard.
As a kind of preferred version, crossing telegon comprises the first Communication processor module and coordinates arbitration processor module, first Communication processor module is connected with smart machine by road LAN (Local Area Network), and the first Communication processor module is connected with traffic control center by wide area network; First Communication processor module is also connected with coordination arbitration processor module.
Communication processor module is used for forming road Local network communication with local intelligent road furniture and carrying out wide area network communication with urban traffic control center, and Communication processor module is provided with wide area network and road LAN (Local Area Network) two class interface; Coordinate arbitration processor module for assisting running status and some other Processing tasks of this crossing smart machine of reconciliation process.
As a kind of preferred version, the first Communication processor module and coordination arbitration processor module are powered by active Ethernet DC power supplier, and active Ethernet DC power supplier is also powered to smart machine by road LAN (Local Area Network).Cable network adopts IEEE802.3af standard, and active Ethernet DC power supplier can be powered to each smart machine be in road LAN (Local Area Network).This power supply mode decreases the complicacy of circuit, reduces manufacturing cost and improves reliability.
As a kind of preferred version, smart machine comprises intelligent signal lamp, intelligent transportation detecting device and ITS Information induced screen, is connected between intelligent signal lamp, intelligent transportation detecting device, ITS Information induced screen, crossing telegon by road LAN (Local Area Network).Coordinate arbitration processor module assign signal timing dial plan to each intelligent signal lamp in this crossing or start interim timing scheme, and coordinate the execution of the signal phase of each intelligent signal lamp.Coordinate arbitration processor module to be monitored by the state of road Local network communication agreement to intelligent signal lamp, finding signal conflict or fault and take counter-measure, carrying out the yellow intelligent signal lamp dodging or close some fault as forced some intelligent signal lamp.
As a kind of preferred version, intelligent signal lamp comprises the second Communication processor module, lamp controller, lamp detecting device and LED array, second Communication processor module is connected with lamp controller, and lamp controller is connected with LED array with lamp detecting device simultaneously, and lamp detecting device is also connected with lamp controller.
Compared with classical signal lamp, intelligent signal lamp has not controlled traffic signals display by signal controlling machine passively, but by the second Communication processor module, according to corresponding road Local network communication agreement, receive the signal phase instruction from crossing telegon and timing scheme, executive signal phase control voluntarily, and the implementation status of self-detected phase.Intelligent signal lamp also can receive the signal condition of other intelligent signal lamps by road Local network communication agreement, detect and find signal conflict and take counter-measure.
As a kind of preferred version, intelligent transportation detecting device is located in intelligent signal lamp, and intelligent transportation detecting device is connected with lamp controller.The design be placed in intelligent signal lamp of intelligent transportation detecting device can make intelligent signal lamp possess perception, perception to the vehicular traffic situation in direction and green demand signals, and agency service for it, by the intelligent signal lamp collaborative work in crossing telegon and other direction.
As a kind of preferred version, intelligent signal lamp comprises the second Communication processor module, lamp controller, lamp detecting device, redundancy second Communication processor module, redundancy lamp controller, redundancy lamp detecting device and LED array, and the second Communication processor module is connected with lamp controller; Redundancy second Communication processor module is connected with redundancy lamp controller, and lamp controller, lamp detecting device, redundancy lamp detecting device, redundancy lamp controller are connected with LED array by dual control logic switch.The object of Redundancy Design is that intelligent signal lamp still can be worked when partial circuit fault.
The invention has the beneficial effects as follows:
1. adopt road LAN (Local Area Network) to connect crossing telegon and smart machine, when increasing certain and possessing the equipment of New function, only need can be realized by the configuration of software.
2. crossing telegon can be powered to each smart machine by road LAN (Local Area Network), decreases the complicacy of circuit, reduces manufacturing cost and improves reliability.
3. intelligent signal lamp initiatively can adjust timing plan or timing scheme according to the road conditions at crossing flexibly, and guarantees that intelligent signal lamp still can work when partial circuit fault by redundant circuit.
Accompanying drawing explanation
Fig. 1 is a kind of circuit theory connection layout of the present invention;
Fig. 2 is a kind of crossing of the present invention telegon circuit theory connection layout;
Fig. 3 is a kind of intelligent signal lamp circuit theory connection layout of the present invention;
Fig. 4 is another kind of intelligent signal lamp circuit theory connection layout of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
Embodiment 1: a kind of intelligent road traffic signal system, its circuit theory connection layout as shown in Figure 1, comprise crossing telegon 1 and several smart machines, smart machine comprises intelligent signal lamp 2, intelligent transportation detecting device 3, ITS Information induced screen 4 and other smart machines, be connected by road LAN (Local Area Network) between intelligent signal lamp, intelligent transportation detecting device, ITS Information induced screen, other smart machines, crossing telegon, crossing telegon is connected with traffic control center by wide area network.Road LAN (Local Area Network) includes spider lines and wireless network, and Wi-Fi is specially wireless mesh network.
The circuit theory connection layout of crossing telegon as shown in Figure 2, comprise the first Communication processor module 11 and coordinate arbitration processor module 12, first Communication processor module is connected with smart machine by road LAN (Local Area Network), and the first Communication processor module is connected with traffic control center by wide area network; First Communication processor module is also connected with coordination arbitration processor module.First Communication processor module and coordination arbitration processor module are powered by active Ethernet DC power supplier 13, and active Ethernet DC power supplier is also powered to smart machine by road LAN (Local Area Network).
Intelligent signal lamp circuit theory connection layout as shown in Figure 3, comprise the second Communication processor module 21, lamp controller 22, lamp detecting device 23 and LED array 24, second Communication processor module is connected with lamp controller, lamp controller is connected with LED array with lamp detecting device simultaneously, and lamp detecting device is also connected with lamp controller.Intelligent transportation detecting device is located in intelligent signal lamp, and intelligent transportation detecting device is connected with lamp controller.
The wireless mesh network that wireless network adopts special short range communication technology to form, possess network delay low, connect the advantages such as easy, be more suitable for adopting in road LAN (Local Area Network).Cable network can adopt IEEE802.3af standard, and this standard allows to carry 48VDC direct current supply in ethernet networks, so just can also meet intelligent road equipment power demands while providing communication to connect.Cable network adopts 12VDC low-voltage power supply and communication, and communication then adopts RS232 standard.
Coordinate arbitration processor module assign signal timing dial plan to each intelligent signal lamp in this crossing or start interim timing scheme, and coordinate the execution of the signal phase of each intelligent signal lamp.Coordinate arbitration processor module to be monitored by the state of road Local network communication agreement to intelligent signal lamp, finding signal conflict or fault and take counter-measure, carrying out the yellow intelligent signal lamp dodging or close some fault as forced some intelligent signal lamp.And intelligent signal lamp has not controlled traffic signals display by signal controlling machine passively, but by the second Communication processor module, according to corresponding road Local network communication agreement, receive the signal phase instruction from crossing telegon and timing scheme, executive signal phase control voluntarily, and the implementation status of self-detected phase.Intelligent signal lamp also can receive the signal condition of other intelligent signal lamps by road Local network communication agreement, detect and find signal conflict and take counter-measure.
Embodiment 2: a kind of intelligent road traffic signal system, its circuit theory and implementation method substantially the same manner as Example 1, difference is that intelligent signal lamp also comprises redundancy second Communication processor module 25, redundancy lamp controller 26 and redundancy lamp detecting device 27, redundancy second Communication processor module is connected with redundancy lamp controller, and lamp controller, lamp detecting device, redundancy lamp detecting device, redundancy lamp controller are connected with LED array by dual control logic switch.Intelligent signal lamp still can be worked on by another part circuit when partial circuit fault.
Claims (6)
1. an intelligent road traffic signal system, it is characterized in that, comprise crossing telegon and several smart machines, all be connected by road LAN (Local Area Network) between crossing telegon and smart machine, each smart machine, road LAN (Local Area Network) includes spider lines and wireless network, wireless network for WLAN (wireless local area network) and wireless mesh network combine or both one of; Crossing telegon is connected with traffic control center by wide area network; Described crossing telegon comprises the first Communication processor module and coordinates arbitration processor module, and the first Communication processor module is connected with smart machine by road LAN (Local Area Network), and the first Communication processor module is connected with traffic control center by wide area network; First Communication processor module is also connected with coordination arbitration processor module.
2. a kind of intelligent road traffic signal system according to claim 1, it is characterized in that, the first described Communication processor module and coordination arbitration processor module are powered by active Ethernet DC power supplier, and active Ethernet DC power supplier is also powered to smart machine by road LAN (Local Area Network).
3. a kind of intelligent road traffic signal system according to claim 1 and 2, it is characterized in that, described smart machine comprises intelligent signal lamp, intelligent transportation detecting device and ITS Information induced screen, is connected between intelligent signal lamp, intelligent transportation detecting device, ITS Information induced screen, crossing telegon by road LAN (Local Area Network).
4. a kind of intelligent road traffic signal system according to claim 3, it is characterized in that, described intelligent signal lamp comprises the second Communication processor module, lamp controller, lamp detecting device and LED array, second Communication processor module is connected with lamp controller, lamp controller is connected with LED array with lamp detecting device simultaneously, and lamp detecting device is also connected with lamp controller.
5. a kind of intelligent road traffic signal system according to claim 4, is characterized in that, intelligent transportation detecting device is located in intelligent signal lamp, and intelligent transportation detecting device is connected with lamp controller.
6. a kind of intelligent road traffic signal system according to claim 5, it is characterized in that, described intelligent signal lamp comprises the second Communication processor module, lamp controller, lamp detecting device, redundancy second Communication processor module, redundancy lamp controller, redundancy lamp detecting device and LED array, and the second Communication processor module is connected with lamp controller; Redundancy second Communication processor module is connected with redundancy lamp controller, and lamp controller, lamp detecting device, redundancy lamp detecting device, redundancy lamp controller are connected with LED array by dual control logic switch.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1687977A (en) * | 2005-04-12 | 2005-10-26 | 浙江中控电子技术有限公司 | Traffic signal controlling system |
| CN202013662U (en) * | 2011-04-19 | 2011-10-19 | 上海交大高新技术股份有限公司 | Road traffic signal control device |
| CN102289942A (en) * | 2011-06-22 | 2011-12-21 | 鞍山市权晟电子电力有限公司 | Road traffic signal control device, running way, method and network |
| CN102346968A (en) * | 2011-09-29 | 2012-02-08 | 泉州市视通光电网络有限公司 | Traffic signal control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100295391B1 (en) * | 1998-12-03 | 2001-07-12 | 오길록 | Metadata Catalog System for CCL Integrated Database |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1687977A (en) * | 2005-04-12 | 2005-10-26 | 浙江中控电子技术有限公司 | Traffic signal controlling system |
| CN202013662U (en) * | 2011-04-19 | 2011-10-19 | 上海交大高新技术股份有限公司 | Road traffic signal control device |
| CN102289942A (en) * | 2011-06-22 | 2011-12-21 | 鞍山市权晟电子电力有限公司 | Road traffic signal control device, running way, method and network |
| CN102346968A (en) * | 2011-09-29 | 2012-02-08 | 泉州市视通光电网络有限公司 | Traffic signal control system |
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