CN106327889A - Distributed traffic signal lamp control system - Google Patents
Distributed traffic signal lamp control system Download PDFInfo
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- CN106327889A CN106327889A CN201610782072.5A CN201610782072A CN106327889A CN 106327889 A CN106327889 A CN 106327889A CN 201610782072 A CN201610782072 A CN 201610782072A CN 106327889 A CN106327889 A CN 106327889A
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- signal lamp
- module
- control end
- traffic
- main control
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/08—Controlling traffic signals according to detected number or speed of vehicles
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- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention discloses a distributed traffic signal lamp control system. The system comprises a local traffic signal machine master control end and a signal lamp controller, the local traffic signal machine master control end and a communication unit are connected in a bidirectional data manner, the communication unit and a signal lamp linkage central control end are connected in a bidirectional data manner, the local traffic signal machine master control end is also connected with a watchdog resetting circuit and a failure detecting circuit in a bidirectional data manner, output terminals of the watchdog resetting circuit and the failure detecting circuit are connected to the signal lamp controller, an output terminal of the local traffic signal machine master control end is connected to an LCD digital display screen, and an input terminal of the local traffic signal machine master control end is connected to output terminals of a traffic flow information acquisition unit and an infrared ray reception unit. According to the distributed traffic signal lamp control system, the design cost is low, the operation is simple, the expansion is convenient, the information sharing degree is high, the flexibility is high, the reference value is good, and the practical value is high.
Description
Technical field
The present invention relates to traffic light technical field, be specially a kind of distributed traffic signal lamp control system.
Background technology
At present, domestic communication signal lights commonly used fixed cycle program control technology, i.e. mainly by experience and conventional statistical data
Determine the traffic lights light on and off time.The intellectuality of road traffic to be realized is it is necessary to introduce variable period Traffic signal control technology, real
Time the data such as the detection traffic flow at crossing and congested amount, dynamically regulate signal lights according to rule, it is thus achieved that more satisfied
Current rate.
Proposing a kind of traffic light control system design with distributed nature for this present invention, it utilizes
RFID technique improves the collection precision of traffic information, utilizes electric current loop long-distance transmissions mode, and applies artificial intelligence theory
System is made to have higher adaptivity and expandability.
Summary of the invention
It is an object of the invention to provide a kind of distributed traffic signal lamp control system, utilize RFID technique to improve road conditions
The collection precision of information, utilizes electric current loop long-distance transmissions mode, and it is higher to apply artificial intelligence theory that system is had
Adaptivity and expandability, with solve in above-mentioned background technology propose problem.
For achieving the above object, the present invention provides following technical scheme:
A kind of distributed traffic signal lamp control system, including local traffic signaling equipment main control end and traffic controller,
Described local traffic signaling equipment main control end is connected with communication unit bi-directional data；Communication unit and signal lights linkage central control terminal
Bi-directional data connects；Described local traffic signaling equipment main control end also with watchdog reset circuit and failure detector circuit bi-directional data
Connect；The outfan of described watchdog reset circuit and failure detector circuit is connected to traffic controller；Described local traffic
The outfan of semaphore main control end is connected to LCD digital display screen, and the input of local traffic signaling equipment main control end is connected to wagon flow letter
Breath collecting unit and the outfan of infrared receiver unit；Described car flow information collecting unit is by semaphore main control end module, car
Flow information acquisition module, urgent intervention module, current detection module, traffic controller module and area interlocking module group
Become；The input of described semaphore main control end module is electrically connected on radio-frequency probe；The input of traffic controller module
End is electrically connected at the outfan of traffic controller；Described infrared receiver unit is controlled by puts by force remote controller；Described signal
The outfan of lamp controller is electrically connected at motor vehicle signal lamp and pedestrian crosswalk signal lamp.
Preferably, including transmitting driver element in described local traffic signaling equipment main control end, transmission driver element includes passing
Defeated module and driving module, the signal input part of described transport module is connected on the signal output part of traffic controller, institute
The voltage input end stating transport module is connected with external voltage outfan, and described transport module outfan is through driving module with motor-driven
Car signal lights is connected with pedestrian crosswalk signal lamp.
Preferably, the processor in described car flow information collecting unit uses AT91RM9200 as semaphore panel
Processor.
Preferably, described motor vehicle signal lamp and pedestrian crosswalk signal lamp all use the light emitting diode of LED technology.
Preferably, the signal output part of described traffic controller is also electrically connected at the input of countdown signal lights
On.
Preferably, the transport module in described transmission driver element is also electrically connected at Keysheet module.
Compared with prior art, the invention has the beneficial effects as follows:
(1) this distributed traffic light control system, can be effectively improved current situation of traffic, improves existing road resource
Utilization rate, saves social cost.Native system is based on AT91RM9200 processor, application-centered, uses embedded operation system
System, design has low cost, and the features such as operation is simple, and extension is convenient, and extent of information sharing is high, and motility is strong have well ginseng
Examine and be worth and higher practical value.
(2) this distributed traffic light control system, utilizes RFID technique to improve the collection precision of traffic information, utilizes
Electric current loop long-distance transmissions mode, and apply artificial intelligence theory to make system have higher adaptivity and extendible
Property.
Accompanying drawing explanation
Fig. 1 is the traffic signal lamp system structured flowchart of the present invention；
Fig. 2 is the signal lights linkage central control terminal structured flowchart of the present invention.
In figure: 1 local traffic signaling equipment main control end；11 transmission driver elements；111 transport modules；112 drive module；2 letters
Signal lamp controller；21 countdown signal lighties；3 communication units；4 signal lights linkage central control terminals；5 car flow information collecting units；
51 semaphore main control end modules；52 information of vehicle flowrate acquisition modules；53 urgent intervention modules；54 current detection modules；55 signals
Lamp controller module；56 area interlocking modules；6 infrared receiver unit；7 radio-frequency probes；Remote controller is put by the Final 8；9 motor vehicles letters
Signal lamp；10 pedestrian crosswalk signal lamps；12 watchdog reset circuits；13 failure detector circuits；14LCD digital display screen；15 Keysheet modules.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Referring to Fig. 1-2, the present invention provides a kind of technical scheme: a kind of distributed traffic signal lamp control system, including
Local traffic signaling equipment main control end 1 and traffic controller 2, local traffic signaling equipment main control end 1 and communication unit 3 bi-directional data
Connect；Communication unit 3 is connected with signal lights linkage central control terminal 4 bi-directional data；Local traffic signaling equipment main control end 1 also with see
Door Canis familiaris L. reset circuit 12 and failure detector circuit 13 bi-directional data connect；Watchdog reset circuit 12 and failure detector circuit 13
Outfan is connected to traffic controller 2；The outfan of local traffic signaling equipment main control end 1 is connected to LCD digital display screen 14, local
The input of traffic signaling equipment main control end 1 is connected to car flow information collecting unit 5 and the outfan of infrared receiver unit 6；Car
Stream information collecting unit 5 is by semaphore main control end module 51, information of vehicle flowrate acquisition module 52, urgent intervention module 53, electric current
Detection module 54, traffic controller module 55 and area interlocking module 56 form；The input of semaphore main control end module 51
It is electrically connected on radio-frequency probe 7；The input of traffic controller module 55 is electrically connected at the defeated of traffic controller 2
Go out end；Infrared receiver unit 6 is controlled by puts by force remote controller 8；The outfan of traffic controller 2 is electrically connected at motor vehicles letter
Signal lamp 9 and pedestrian crosswalk signal lamp 10, the signal output part of traffic controller 2 is also electrically connected at countdown signal lights 21
On input；Including transmitting driver element 11 in local traffic signaling equipment main control end 1, transmission driver element 11 includes transport module
111 and drive module 112, the signal input part of transport module 111 is connected on the signal output part of traffic controller 2, pass
The voltage input end of defeated module 111 is connected with external voltage outfan, and transport module 111 outfan is through driving module 112 and machine
Motor-car signal lights 9 is connected with pedestrian crosswalk signal lamp 10.
Processor in car flow information collecting unit 5 uses AT91RM9200 as semaphore panel processor；Have
Luminous power is big, and shock resistance is strong, and power saving the most stably waits beneficial effect.Each assembly in system, supplies by outside including signal lights
Electricity, and it is furnished with UPS；Traffic controller 2 does not provide running voltage to various signal lighties, only carries out signal transmission, is fully achieved
Vulnerabilities scan；The principle controlling employing pulsewidth modulation of signal lights brightness, by electrical voltage full-wave rectification, through electric resistance partial pressure, by optocoupler
Being changed into the square wave of certain dutycycle, when supply voltage raises, dutycycle can reduce, the raising of suppression LED luminance, when
When supply voltage reduces, dutycycle can increase, and limits the reduction of LED luminance, it is achieved thereby that the automatically controlling of LED luminance.Place
Reason device uses AT91RM9200 to be integrated with abundant peripheral functional modules as semaphore panel processor, is very suitable for reality
Time control, and support real time operating system, arithmetic speed is high.Semaphore uses 12/5V power supply to power, and AT91RM9200 works in
3.3V and 2.5V, in system, other device selects running voltage to be 3.3V and 5V.For convenience of the operation of man machine interface,
AT91RM9200 processor built-in LCD digital display screen 14, LCD digital display screen 14 drives with AT91RM9200 processor by driving controller
It is dynamically connected, LCD digital display screen drive control signal can be automatically generated, can be directly connected to LCD digital display screen 14.Transmission driver element
Transport module 111 in 11 is also electrically connected at Keysheet module 15, and Keysheet module extends the key of 4 × 4 by ZLG7290B
Dish matrix, ZLG7290B is attached with processor by IIC universal serial bus.
Motor vehicle signal lamp 9 and pedestrian crosswalk signal lamp 10 all use the light emitting diode of LED technology, have luminous power
Greatly, shock resistance is strong, and power saving is stable again.Each assembly in system, including signal lights all by externally fed, and is furnished with UPS.Signal lights
Controller 2 does not provide running voltage to various signal lighties, only carries out signal transmission, vulnerabilities scan is fully achieved.Signal lights brightness
Control use pulsewidth modulation principle, by electrical voltage full-wave rectification, through electric resistance partial pressure, optocoupler changed into certain dutycycle
Square wave, when supply voltage raises, dutycycle can reduce, suppression LED luminance raising, when the supply voltage decreases, duty
Ratio can increase, and limits the reduction of LED luminance, it is achieved thereby that the automatically controlling of LED luminance；
Information of vehicle flowrate acquisition module 52 is automatically identified destination object by radiofrequency signal and is obtained related data, worked
Cheng Wuxu manual intervention, can be applicable to various adverse circumstances.When the vehicle with radio-frequency (RF) tag is by this section, read write line meeting
Received by antenna and return the rf modulated signal being loaded with RFID information, pass to semaphore main control end after treatment, complete road conditions
The information gathering of data.
Current detection module 54 can play preferable protective effect；Utilize the fault containing voltage detecting with current detecting
Testing circuit, makes detection in real time, the Transistor-Transistor Logic level signal of return is transferred to signal owner traffic controller and signal lights
Control plate, annunciator system can select to continue executing with according to different results, or upwards report to the police, shut down the most voluntarily.
Traffic controller module 55 be the various light color states of belisha beacon be to semaphore by traffic controller 2
Data carry out processing and are transformed.
Area interlocking module 56: local signal machine is controlled end and applied by Web Service by pending data message
The packaged region signal lamp system of issuing of routine interface controls end, processes work and is completed by the latter, then final result is returned to
Local signal machine.Web Service technology makes full use of the computing capability of region signal lamp system control unit, alleviates this locality
The processor expense of semaphore so that lamp system is more stable and is easily maintained.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand and these embodiments can be carried out multiple change without departing from the principles and spirit of the present invention, revise, replace
And modification, the scope of the present invention be defined by the appended.
Claims (6)
1. a distributed traffic signal lamp control system, including local traffic signaling equipment main control end (1) and traffic controller
(2), it is characterised in that: described local traffic signaling equipment main control end (1) is connected with communication unit (3) bi-directional data；Communication unit
(3) it is connected with signal lights linkage central control terminal (4) bi-directional data；Described local traffic signaling equipment main control end (1) also with guard the gate
Canis familiaris L. reset circuit (12) and failure detector circuit (13) bi-directional data connect；Described watchdog reset circuit (12) and fault detect
The outfan of circuit (13) is connected to traffic controller (2)；The outfan of described local traffic signaling equipment main control end (1) connects
In LCD digital display screen (14), the input of local traffic signaling equipment main control end (1) is connected to car flow information collecting unit (5) and red
Outside line receives the outfan of unit (6)；Described car flow information collecting unit (5) is by semaphore main control end module (51), vehicle flowrate
Information acquisition module (52), urgent intervention module (53), current detection module (54), traffic controller module (55) and area
Interlocking module (56) forms；The input of described semaphore main control end module (51) is electrically connected on radio-frequency probe (7)；Letter
The input of signal lamp controller module (55) is electrically connected at the outfan of traffic controller (2)；Described infrared receiver list
Unit (6) is controlled by puts by force remote controller (8)；The outfan of described traffic controller (2) is electrically connected at motor vehicle signal lamp (9)
With pedestrian crosswalk signal lamp (10).
A kind of distributed traffic signal lamp control system the most according to claim 1, it is characterised in that: described local traffic
Including transmitting driver element (11) in semaphore main control end (1), transmission driver element (11) includes transport module (111) and drives
Module (112), the signal input part of described transport module (111) is connected on the signal output part of traffic controller (2), institute
The voltage input end stating transport module (111) is connected with external voltage outfan, and described transport module (111) outfan is through driving
Module (112) is connected with motor vehicle signal lamp (9) and pedestrian crosswalk signal lamp (10).
A kind of distributed traffic signal lamp control system the most according to claim 1, it is characterised in that: described wagon flow letter
Processor in breath collecting unit (5) uses AT91RM9200 as semaphore panel processor.
A kind of distributed traffic signal lamp control system the most according to claim 1, it is characterised in that: described motor vehicles is believed
Signal lamp (9) and pedestrian crosswalk signal lamp (10) all use the light emitting diode of LED technology.
A kind of distributed traffic signal lamp control system the most according to claim 1, it is characterised in that: described signal lights control
The signal output part of device processed (2) is also electrically connected on the input of countdown signal lights (21).
A kind of distributed traffic signal lamp control system the most according to claim 1, it is characterised in that: described transmission drives
Transport module (111) in unit (11) is also electrically connected at Keysheet module (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610782072.5A CN106327889A (en) | 2016-08-30 | 2016-08-30 | Distributed traffic signal lamp control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610782072.5A CN106327889A (en) | 2016-08-30 | 2016-08-30 | Distributed traffic signal lamp control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106327889A true CN106327889A (en) | 2017-01-11 |
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ID=57789983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610782072.5A Pending CN106327889A (en) | 2016-08-30 | 2016-08-30 | Distributed traffic signal lamp control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710254A (en) * | 2017-03-31 | 2017-05-24 | 合肥智慧龙图腾知识产权股份有限公司 | Intelligent traffic monitoring system |
| CN114419902A (en) * | 2021-12-08 | 2022-04-29 | 王力 | Signal lamp control system for traffic engineering |
-
2016
- 2016-08-30 CN CN201610782072.5A patent/CN106327889A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710254A (en) * | 2017-03-31 | 2017-05-24 | 合肥智慧龙图腾知识产权股份有限公司 | Intelligent traffic monitoring system |
| CN114419902A (en) * | 2021-12-08 | 2022-04-29 | 王力 | Signal lamp control system for traffic engineering |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170111 |
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| WD01 | Invention patent application deemed withdrawn after publication |