CN106846983A - Traffic signal control demonstration box based on FPGA development module - Google Patents
Traffic signal control demonstration box based on FPGA development module Download PDFInfo
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- CN106846983A CN106846983A CN201710122562.7A CN201710122562A CN106846983A CN 106846983 A CN106846983 A CN 106846983A CN 201710122562 A CN201710122562 A CN 201710122562A CN 106846983 A CN106846983 A CN 106846983A
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- 238000011161 development Methods 0.000 title claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 208000009115 Anorectal Malformations Diseases 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000015220 Febrile disease Diseases 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B19/00—Teaching not covered by other main groups of this subclass
- G09B19/14—Traffic procedures, e.g. traffic regulations
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- Business, Economics & Management (AREA)
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- Entrepreneurship & Innovation (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention provides a traffic signal control demonstration box based on an FPGA development module, wherein an annunciator system is embedded in the demonstration box, the annunciator system is developed by adopting an ARM (advanced RISC machine), an external software interface can be simplified, a compiling environment is an embedded Linux system built on the ARM, an FPGA end interface is controlled by a bottom-layer drive, an external serial-parallel mode transmission chip is switched to a signal lamp, a detector and a nixie tube interface, and a user can compile a program to meet different timing requirements.
Description
Technical field
The invention belongs to the technical field that intellectual traffic control is combined with management, it is related to a kind of programmable multi-signal
Lamp controls the experimental teaching unit of timing scheme, is student's displaying semaphore for the teaching of Traffic Engineering correlated curriculum
Operation principle, on this basis, student can writing by program, simulate the traffic signal timing controlling party under various demands
Case.
Background technology
With the development of urban transportation cause, many enterprises and colleges and universities have all put into the research and development of traffic signalization equipment
In the middle of experiment, but experimental provision before is a kind of simple demonstration tool carried outside semaphore, and user can neither show
Field is programmed control to experimental box, replacing timing scheme, and exist that bulky, analog case are single, hardware is complicated,
Scalability is low, the low problem of level of integrated system, and this assembling both to traffic signals experimental box, system upgrade make troubles, and increases
Add cost, the operation principle of semaphore can not have intuitively been shown to student, different demands can not be directed to, change timing
Scheme, therefore teaching efficiency is less desirable.As can be seen here, demand is tested for classroom instruction, contrived experiment teaching is special
Traffic signalization experimental facilities is a need for.
And in the prior art, it is related to experimental box to be used as the patent for having the applicant's earlier application of semaphore
CN201410354935.X, but it only has simple signal lamp lamp group and intersection channelization mark, coil checker in outside, only
Outer signal machine and feeder line, coil checker, the signal that just meeting simulating vehicle passes through is, it is necessary to pass through outer signal machine or install mould
Intend software to show the control program of packaged semaphore, this experimental box is a kind of exhibition of portable semaphore work
Showing device.
Can only be used as that the exhibiting device of semaphore, teaching efficiency be poor, expensive to solve existing experimental box, user not
The problem of control program can arbitrarily be changed, semaphore can be demonstrated for student on classroom it is an object of the invention to provide a kind of
Operation principle, and the programmable of timing scheme, Portable traffic signal Control release teaching equipment, the dress are changed according to demand
Put using FPGA control modules, be equipped with ARM operating systems, CPU executed in parallel can be departed from, simplify the bottom control of complexity
Operation, hardware cost reduction higher than traditional industrial computer and peripheral interface chip integrated level, and more output ends can be driven
Interface, the present apparatus at most can export 32 groups of lamp groups at 4 crossings and detector combination, and the autgmentability of system is more flexible；Letter
Number machine is connected by Ethernet interface with PC, is free to enter the upload of line program, compiling under Linux environment, is performed,
Convenient use person's exploitation, online modification control program；Experimental box can also couple with database, facilitate transferring and depositing for data
Storage, changes different timing schemes, and plate can provide the input of pulse signal below experimental provision, carries coil checker lamp
Plate, can be according to current vehicle uninterrupted, system self-adaption control.These software and hardware features can provide apparatus of the present invention
Single, the different timing program simulations of Multiple Intersections, apparatus of the present invention collection shows, is controlled in one.Student's religion of colleges and universities can be met
Work is learned, the signal timing dial at the various crossings of relevant enterprise department can be supplied to control analog demenstration again, with certain economic valency
Value.
The content of the invention
To achieve these goals, the present invention specifically uses following technical scheme：Traffic signalization demonstration box, including：
Casing, for placing lamp plate, connecting line, power supply, ethernet line etc., the casing also include being fixed in casing below plate,
Lower panel includes the interface of connection signal lamp and detector；Lamp plate component, including for analog crossover mouthful intersection signal control
Various lamp plates, the lamp plate is dismountable independent lamp plate, and various lamp plates can tandem working；Lamp plate coupling assembly, uses
In fixed lamp plate and the casing；Display module, it includes countdown lamp group, indicator lamp group；Ethernet interface, for external electricity
Brain or router；The lower panel, display module are arranged at box house；The lamp plate front is provided with the canalization arrow at crossing
Head, detector and signal lamp, signal lamp include straight trip lamp, left-hand rotation lamp, pedestrian's lamp, the signal state of a control for simulating crossing；
The lamp plate is additionally provided with signal lamp, pedestrian's lamp, detector connection jaws；Each lamp plate back side is fixed in casing by magnet；Under
The detector connection jaws of panel are used to be connected with lamp plate detector interface, when operation program, press the detector of corresponding sequence number
Control button, indicator lamp group is bright；Casing is connected with database software, for calling storage day part traffic flow data, timing word
The timing scheme of section and multi-signal lamp；The casing embeds FGPA modules and carries high-speed CPU with lamp plate, supports multigroup lamp
The combination of group and detector is exported.
Preferably, also including movable lamp plate, it can be connected with lower panel, for simulating crossing signals state of a control.
Preferably, also including RS-232 interface, for the renewal of system；Reset key, restarts for semaphore；USB interface,
Uploaded for file transmission, program.
Preferably, also including lamp plate storage bag, cable parcel tray, tool storing box.
Preferably, also following timing scheme is used including single intersection signal lamp：First stage, first starts complete red stage, 2
Second later, a phase of setting starts green light, and green light countdown, and green light is worked as in remaining phase red light, red light countdown
Become amber light, remaining phase updates red time, then has amber light to redden, into second stage, circulation.
Preferably, after being also connected with database software including casing, following sensing control is carried out：First determine whether a certain stage
Run time whether reach the minimum green time in the stage, continued to run with if not reaching and continuing, such as reach, then judge be
It is no to have vehicle pass-through demand, if demand, then the extension step-length time is given, the stage is continued to run with while judging that the extension time is
No completion, continues to run with as unfinished, judges whether to reach maximum green time if completing, and such as reaches maximum green time,
Then enter next stage.
The annunciator system is developed using ARM, can simplify external software interface, and translation and compiling environment is set up on ARM
An embedded Linux system, by the interface at the drive control FPGA ends of bottom, with outside string and mode development of evil in febrile disease chip again
It is transferred to signal lamp, detector and digital interface tube, user can enter line program and write to meet different timing demands, no
It is merely a kind of demonstration tool of semaphore, and significantly reduces the complexity of hardware, power consumption is reduced, so as to save into
This.
The present invention has the advantages that：
（1）It is convenient for carrying, apparatus of the present invention use portable cabinet design, small volume, multiple functional, memory box storage space
Greatly, more lamp plates, cable and instrument are deposited.
（2）Experimental box uses FPGA module, can carry more lamp groups, detector, facilitates the coordination signal control of Multiple Intersections
Analog demenstration processed, also improves the integrated level of system and hardware, cost-effective.
（3）Using ARM development systems, it is adapted to complicated bottom control operation, while performance module is improved, also makes
User operates and more facilitate, and interface alternation is stronger, according to different use demands, can be from compiling control program.
（4）Experimental box can carry out networking operation with Ethernet interface and external computer, carry out the transmission of file, Ke Yishi
Existing dynamic linkage demonstration.
（5）Experimental box can connect database software, flexibly transfer and store external data, it is possible to achieve full induced signal control
System, Self Adaptive Control.
（6）Experiment teaching effect is good, by patent of the present invention, student can not only be allowed to get information about the work of actual signal machine
Make principle, and can further help learn with the timing scheme of oneself dismounting, assembling lamp plate and programming control signal machine
The raw utilization field for understanding semaphore in traffic administration and the importance of signal control.
Brief description of the drawings
Fig. 1 is multifunctional traffic signal Control release case front schematic view.
Fig. 2 is single intersection signal control activity lamp plate schematic diagram.
Fig. 3 is that single intersection fixes timing control flow chart.
Fig. 4 is the sensing control flow chart that experimental box is connected with database.
Fig. 5 is experimental box lower panel schematic diagram.
Fig. 6 is experimental box external interface schematic diagram.
Specific embodiment
In figure：1st, catching groove；2nd, portable handle；3rd, detector；4th, road canalization arrow；5th, walker signal lamp lamp group；6、
Countdown lamp group；7th, motor vehicle signal lamp lamp group；8th, signal lamp group and lower panel connector；9th, detector and lower panel are connected
Mouthful；10th, lamp plate and lower panel connection satellite interface；11st, movable lamp plate storage bag；12nd, cable parcel tray；13rd, tool storing box；
14 power knobs；15th, sensors work indicator lamp；16th, detector button；17th, key relay indicating light is reserved；18th, key is reserved；
19th, signal lamp relay indicating light；20th, RS-232 interface；21st, RS-485 interfaces；22nd, CAN interface；23rd, SR；
24th, USB interface；25th, Ethernet interface；26th, I/0 interfaces；27th, jtag interface；28th, memory card port；29th, supply hub.
In lamp plate front, intersection channelization and signal lamp, including left, straight, right signal lamp, pedestrian's lamp are set.Set on lamp plate face
There are signal lamp, detector connection jaws, connection jaws use direct inserting and drawing type at this, both facilitate wiring, safety is ensured again.Movable lamp plate
Can be adsorbed on casing, and be connected with lower panel by satellite interface, be capable of achieving the state of a control demonstration of simulation crossing signals.
Detector interface is provided with lamp plate, is connected with experimental box lower panel, when database is connected, call database to hand over
Logical data, the sensing for controlling lamp plate component by the data for receiving controls demonstration, and during external computer, client can show in real time
Show the data traffic signal that detector is uploaded.
Experimental box can enter upload, compiling, the execution of line program, it is also possible to straight by Ethernet interface or USB interface
Connect and be connected with router, can network modification control parameter, linux system is linked into the lamp plate system, realize external software and
Scheme function when dynamic light is assembled.
In Fig. 2, intersection channelization arrow 4, walker signal lamp group 5, countdown lamp 6, motor vehicle turn left, keep straight on, right turn signal
Lamp group 7, constitutes the Signalized control layout at crossing, for main display function.Signal lamp, detection are carried out at connection jaws 7,8
The cut-in operation of device, wherein connection jaws inside have voltage protection unit, for protecting what user's safety and lamp group were used
Reliability.
In Fig. 3, single intersection signal lamp fixes timing, and in two stages, first stage first starts complete red stage, 2 seconds
Later, a phase of setting starts green light, and green light countdown, remaining phase red light, red light countdown, when green light turns yellow
Lamp, remaining phase updates red time, then has amber light to redden, into second stage, circulation.Lamp plate and signal box can be simulated
The signal timing plan at various crossings.
As shown in figure 4, connect realizing sensing control by lamp plate and experimental box and database.Scheduling is deposited in database
Table, timetable, scheme table.Dispatch list is used to confirm that some day uses a specific timetable；Timetable is a certain for confirming
Period selects certain control program；Scheme table can deposit various timing schemes, such as sense the specific timing parameter of timing.Sensing
Control program：First determine whether whether the run time in a certain stage reaches the minimum green time in the stage, such as do not reach continuation
Then continue to run with, such as reach, then determine whether vehicle pass-through demand, if demand, then give the extension step-length time, continue to transport
The row stage judges whether the extension time completes simultaneously, continues to run with as unfinished, judges whether to reach maximum green if completing
The lamp time, maximum green time is such as reached, then into next stage.
In Fig. 5, lamp plate storage bag 11, cable parcel tray 12, tool storing box 13, the lamp plate etc. that can receive experiment set
It is standby；Signal lamp relay indicating light 19, sensors work indicator lamp 15, for showing the lamp group of reference numeral whether in work shape
State；Reserved key 18, can be with self-defined.
In Fig. 6, RS-232 interface 20 makees experimental box system upgrade, and brush machine is used；Ethernet interface 25 upload files to experimental box,
Connection external software；Reset key 23 restarts experimental box.
Claims (6)
1. a kind of a kind of traffic signalization demonstration box, more particularly to traffic signalization demonstration based on FPGA development modules
Case, it is characterised in that including：
Casing, for placing lamp plate, connecting line, power supply, ethernet line etc., below the casing also includes being fixed in casing
Plate, lower panel includes the interface of connection signal lamp and detector, and interface internal has voltage protection unit；
Lamp plate component, including for various lamp plates of analog crossover mouthful intersection signal control, the lamp plate is dismountable independent
Lamp plate, various lamp plates can tandem working；
Lamp plate coupling assembly, for fixing lamp plate and the casing；
Display module, it includes countdown lamp group, indicator lamp group；
Ethernet interface, for external computer or router；
The lower panel, display module are arranged at box house；
The lamp plate front is provided with canalization arrow, detector and the signal lamp at crossing, signal lamp include straight trip lamp, left-hand rotation lamp,
Pedestrian's lamp, the signal state of a control for simulating crossing；The lamp plate is additionally provided with signal lamp, pedestrian's lamp, detector connection jaws；
Each lamp plate back side is fixed in casing by magnet；
The detector connection jaws of lower panel are used to be connected with lamp plate detector interface, when operation program, press corresponding sequence number
Detector control button, indicator lamp group is bright；Casing is connected with database software, for call storage day part traffic flow data,
The timing scheme of timing field and multi-signal lamp；
The casing embeds FGPA modules and carries high-speed CPU with lamp plate, supports the combination output of multigroup lamp group and detector.
2. traffic signalization demonstration box as claimed in claim 1, it is characterised in that also include
Movable lamp plate, it can be connected with lower panel, for simulating crossing signals state of a control.
3. traffic signalization demonstration box as claimed in claim 1, it is characterised in that also include
RS-232 interface, for the renewal of system；
Reset key, restarts for semaphore；
USB interface, uploads for file transmission, program.
4. traffic signalization demonstration box as claimed in claim 1, it is characterised in that also include
Lamp plate storage bag, cable parcel tray, tool storing box.
5. traffic signalization demonstration box as claimed in claim 1, it is characterised in that also include
Single intersection signal lamp uses following timing scheme：First stage, first starts the complete red stage, and 2 seconds are later, and the one of setting
Individual phase starts green light, and green light countdown, remaining phase red light, red light countdown, and when green light becomes amber light, remaining phase is more
New red time, then there is amber light to redden, into second stage, circulation.
6. traffic signalization demonstration box as claimed in claim 1, it is characterised in that also include
After casing is connected with database software, following sensing control is carried out：First determine whether whether the run time in a certain stage arrives
Up to the minimum green time in the stage, continued to run with if not reaching and continuing, such as reached, then determine whether that vehicle pass-through is needed
Ask, if demand, then give the extension step-length time, continue to run with the stage while judging whether the extension time completes, it is such as not complete
Into continuing to run with, judge whether to reach maximum green time if completing, such as reach maximum green time, then into lower single order
Section.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710122562.7A CN106846983A (en) | 2017-03-03 | 2017-03-03 | Traffic signal control demonstration box based on FPGA development module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710122562.7A CN106846983A (en) | 2017-03-03 | 2017-03-03 | Traffic signal control demonstration box based on FPGA development module |
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| CN106846983A true CN106846983A (en) | 2017-06-13 |
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Citations (10)
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|---|---|---|---|---|
| AU5341173A (en) * | 1972-03-16 | 1974-09-19 | Omron Tateishi Electronics Co. | A traffic signal control system |
| CN2798224Y (en) * | 2005-05-09 | 2006-07-19 | 华南理工大学 | Analog demonstration controller for traffic signal |
| CN2857134Y (en) * | 2005-12-13 | 2007-01-10 | 金剑锋 | Programmable traffic teleseme |
| CN201359782Y (en) * | 2009-02-27 | 2009-12-09 | 佛山市三水同安交通设施有限公司 | Traffic signaling equipment with right turn canalization control and Ethernet |
| CN201374128Y (en) * | 2008-12-27 | 2009-12-30 | 桂林电子科技大学 | Experimental teaching device with integrated traffic signal control |
| CN102231232A (en) * | 2011-06-22 | 2011-11-02 | 沈阳广信先锋交通高技术有限公司 | Management, induction and control system of urban traffic |
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| CN104200720A (en) * | 2014-07-24 | 2014-12-10 | 北方工业大学 | Portable multifunctional traffic signal control lamp panel device |
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-
2017
- 2017-03-03 CN CN201710122562.7A patent/CN106846983A/en active Pending
Patent Citations (10)
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|---|---|---|---|---|
| AU5341173A (en) * | 1972-03-16 | 1974-09-19 | Omron Tateishi Electronics Co. | A traffic signal control system |
| CN2798224Y (en) * | 2005-05-09 | 2006-07-19 | 华南理工大学 | Analog demonstration controller for traffic signal |
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| CN201374128Y (en) * | 2008-12-27 | 2009-12-30 | 桂林电子科技大学 | Experimental teaching device with integrated traffic signal control |
| CN201359782Y (en) * | 2009-02-27 | 2009-12-09 | 佛山市三水同安交通设施有限公司 | Traffic signaling equipment with right turn canalization control and Ethernet |
| CN102486893A (en) * | 2010-12-03 | 2012-06-06 | 北京思迈特威科技有限公司 | Plane crossing universal control method and multi-stage modularized signal machine |
| CN102231232A (en) * | 2011-06-22 | 2011-11-02 | 沈阳广信先锋交通高技术有限公司 | Management, induction and control system of urban traffic |
| CN104200720A (en) * | 2014-07-24 | 2014-12-10 | 北方工业大学 | Portable multifunctional traffic signal control lamp panel device |
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| Title |
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