CN201374128Y - Experimental teaching device with integrated traffic signal control - Google Patents
Experimental teaching device with integrated traffic signal control Download PDFInfo
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- CN201374128Y CN201374128Y CN200820113715U CN200820113715U CN201374128Y CN 201374128 Y CN201374128 Y CN 201374128Y CN 200820113715 U CN200820113715 U CN 200820113715U CN 200820113715 U CN200820113715 U CN 200820113715U CN 201374128 Y CN201374128 Y CN 201374128Y
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Abstract
The utility model discloses an experimental teaching device with integrated traffic signal control, which is characterized in that: an embedded control center is respectively connected with a working power, a function operation selecting button, a signal control scheme serial communication interface, a signal control scheme network communication interface, a function operation LCD display, a traffic signal control simulation and demonstration interface, a traffic signal coordination control cascade output interface and a weak-power driving and high-power output interface, wherein the signal control scheme network communication interface and the signal control scheme serial communication interface are connected with a computer. The device can accomplish the practical teaching items of design of an urban traffic management scheme, design of a traffic signal control scheme, design and use of a traffic signal controller, coordination control of the traffic signal, simulation and analysis of the traffic signal control scheme and the like; in addition, the device is convenient for carrying and high in work reliability.
Description
Technical field
The utility model relates to urban traffic signal control, and especially a kind of traffic signals are controlled integrated experimental teaching unit.
Background technology
Along with the integrated use at traffic and transport field of computer technology, control technology and the communication technology, transport information and control engineering have become one of main developing direction of traffic engineering specialty.Society also constantly strengthens the transport information and the controlling party surface technology talent's demand." traffic administration and control " is as one of profession basis required course of Communication and Transportation Engineering specialty, main cultivate the student and grasp traffic control and Basic Principle of Management, and can carry out zone and urban traffic control system exploitation and design, formulation traffic management measure, carry out the ability of practice of traffic simulation.
At present, the course experiment teaching equipment that is used for " traffic administration and control " mostly is traffic signaling equipment and the signal lamp that actual engineering is used, and is not suitable for experimental teaching and lab construction.The student can only be by engineering with the control of input, signal controlling machine wiring and the signal lamp of traffic signaling equipment study traffic control scheme etc., lack the practical training of the student being carried out aspects such as traffic control principle, the design of traffic signals controlling schemes, controlling schemes assay, traffic signal control system modular design ability, perceptual knowledge can only be provided, greatly reduce experiment effect, thereby can not reach the Curriculum Practice teaching purpose of " traffic administration and control ".
The utility model content
The purpose of this utility model is the experimental teaching needs at traffic administration and control, has designed and developed traffic signals and has controlled integrated experimental teaching unit, to make things convenient for the practical teaching of Communication and Transportation Engineering specialty traffic administration and control aspect.
The utility model traffic signals are controlled integrated experimental teaching unit by the embedded Control center, working dc power, the feature operation selector button, signal controlling scheme serial communication interface, signal controlling scheme network communication interface, the feature operation LCD display, traffic signals control analog demenstration, coordinating control of traffic signals tandem outgoing interface, light current drives the forceful electric power output interface and computing machine is formed, the embedded Control center respectively with working power, the feature operation selector button, signal controlling scheme serial communication interface, signal controlling scheme network communication interface, the feature operation LCD display, traffic signals control analog demenstration, coordinating control of traffic signals tandem outgoing interface drives the forceful electric power output interface with light current and is connected, and signal controlling scheme network communication interface is connected with computing machine with signal controlling scheme serial communication interface.
Described embedded Control center is the control and treatment device that traffic signals are controlled integrated experimental teaching unit, selecting main embedded type CPU for use is S3C44B0X, the system works frequency is up to 60MHz, peripheral expansion 16M sdram memory and 2M FLASH, system transplantation ucLinux operating system realizes that by code compiling major function is: preserve signal controlling experimental teaching prediction scheme, the acknowledge(ment) signal controlling schemes also shows control to traffic signals control analog demenstration module, accept the function setting and the selection of feature operation button, control LCD display display alarm operation user, traffic signals are coordinated cascade control output, the drive controlling of peripheral signal lamp.
Described working dc power is the external 9V direct supply of utility model device, is device work power supply.
Described feature operation selector button is made up of 16 buttons, links to each other with the IO interface pin of embedded type CPU respectively.16 buttons carry out numeral number successively from KEY0 to KEY15, prompting requires to select the corresponding work button according to LCD display in the work.
Described signal controlling scheme serial communication interface can make the user by computing machine the mode of intersection signal controlling schemes by serial communication is issued to the embedded Control center.
Described signal controlling scheme network communication interface can make the user by computing machine the mode of intersection signal controlling schemes by network interface communication is issued to the embedded Control center.
Described feature operation LCD display is mainly pointed out user's operating operation flow process and method of operating.
Described traffic signals control analog demenstration is shown as standard cross junction signal controlling form, and every import has three groups of (containing red, yellow, green three light emitting diodes) analog machine motor-car signal lamps, 1 group (containing red, yellow, green three light emitting diodes) simulation bicycle signal lamp, 2 groups (containing red, green two light emitting diodes) simulation People's Bank of China's signal lamp and the 1 group of digital display tube simulation of dibit LED countdown display board to constitute respectively; Simulating signal lamp group and count-down board can carry out the dry run demonstration according to the signal controlling scheme.The work control mode and the signal lamp timing that show the utility model device are provided with the time.
Described coordinating control of traffic signals cascade control interface can be the utility model device to carry out the multi-intersection coordinating control of traffic signals communication channel is provided, the embedded Control center realizes that to traffic lights control employing data serial type displacement technology control is coordinated in the cascade of multi-intersection.
Described light current drives the identical outside 220V of forceful electric power output interface may command traffic signals control analog demenstration way, the traffic control light of 50HZ alternating current work.
The utility model device can carry out the experiment practical teaching of traffic signals controlling schemes to the student of Communication and Transportation Engineering specialty, and the education experiment project has the design of urban traffic control conceptual design, the design of traffic signals controlling schemes, traffic signal controlling machine and use, coordinating control of traffic signals, traffic to believe prosecutor case simulation and analysis evaluation etc.
The course of work of this device is: after the energising work, the feature operation LCD display can point out student user to select prediction scheme demonstration or input student user to test letter prosecutor case.The traffic signals controlling schemes under the different transportation conditions of 10 covers is preserved at the embedded Control center of device in advance, after the user selects to specify prediction scheme by the feature operation selector button, the operational process analog demenstration that traffic signals control analog demenstration module is carried out traffic signals will be controlled in the embedded Control center.After student user selects input experiment letter prosecutor case, the feature operation LCD display can point out the user to select network interface input and serial ports input pattern, after the user confirms to select input pattern, the embedded Control center can communicate letter of acceptance prosecutor case with the computing machine of preserving experiment letter prosecutor case, and the control traffic signals were controlled the operational process analog demenstration that the analog demenstration module is carried out traffic signals after complete letter prosecutor case was received at the embedded Control center.
The beneficial effects of the utility model are:
(1) can conveniently be used for the communications and transportation Major and carry out the teaching of traffic signals control practice, and can be analog demenstration and the engineering experimental exercising that the student carries out traffic signals control.
The student is on the basis of basic theories such as study traffic study analysis, traffic control canalization conceptual design, signal controlling conceptual design, and practical teaching projects such as prosecutor case simulation and analysis are believed in the design and use, coordinating control of traffic signals, the traffic that rely on the utility model device can finish urban traffic control conceptual design, the design of traffic signals controlling schemes, traffic signal controlling machine.
Traffic signals of the present utility model are controlled integrated experimental teaching unit, and embedded Control center host CPU adopts the S3C44B0X embedded chip, and data-handling capacity is strong, and the system works frequency is up to 60MHz, and the I/O mouth is abundant; In the utility model device peripheral expansion 16M sdram memory and 2M FLASH, can preserve the signal controlling prediction scheme, make things convenient for teacher and student to carry out the control procedure demonstration of signal controlling scheme; Simultaneously the student can utilize feature operation selector button, signal controlling scheme serial communication interface, the signal controlling scheme network communication interface of the utility model device the experimentize input and the control of signal controlling scheme, and carries out the analog demenstration of signal controlling process by the traffic signals control analog demenstration module of the utility model device; Thereby can carry out the engineering experimental exercising of signal controlling process to the student.
The student can utilize coordinating control of traffic signals cascade control interface to carry out the coordinating control of traffic signals analog demenstration of multi-intersection; Utilize light current to drive the engineering training that forceful electric power Output Interface Control external signal lamp carries out intersection signal control.The utility model apparatus function operation LCD display can provide operation indicating and help for student user in real time.
The embedded Control centring system has been transplanted ucLinux operating system, can make things convenient for the user to utilize the feature operation selector button to carry out feature operation, also provides convenience for the help operation indicating of feature operation LCD display simultaneously.
(2) Zhuan Zhi portability.
Traffic signals of the present utility model are controlled integrated experimental teaching unit, and power supply adopts the 9V D.C. regulated power supply, and integral panels is of a size of 364*265mm, and device has made things convenient for the carrying of installing, deposits and used in portable chamber.
(3) reliability of device work.
Traffic signals of the present utility model are controlled integrated experimental teaching unit, have adopted external D.C. regulated power supply, have reduced or remitted the electrical supply failure rate; Adopt ripe embedded type CPU, improved the reliability of device work; Light emitting diode is simulated traffic lights, has improved the mission life and the reliable operation degree of simulating signal lamp.
Description of drawings
Fig. 1 is the utility model experimental teaching unit structural framing figure;
Fig. 2 be the achievable experiment content of the utility model experimental teaching unit and between the flow process graph of a relation;
Fig. 3 is the utility model experimental teaching unit plane figure and workflow synoptic diagram.
Among the figure: 1. 2. working dc powers, 3. feature operations in embedded Control center select button 4. signal timing plan serial communication interfaces 5. signal timing plan network communication interfaces 6. feature operation LCD displays 7. traffic signals control simulations demonstration 7-1. pavement 7-2. traffic signals countdown LED 7-3. left-hand rotation traffic lights 7-4. craspedodrome traffic lights 7-5. right-hand rotation traffic lights 7-6. bicycle traffic lights 7-7. pavement traffic lights 8. coordinating control of traffic signals directly link interfaces 9. light current driving forceful electric power output interface 10. wire jumpers 11. power supplys to indicate 12. power switches, 13. network tests to put 14. network chips, 15. reset keys, 16. batteries
Embodiment
Further specify the utility model below in conjunction with the drawings and specific embodiments.
With reference to Fig. 1～Fig. 3, a kind of traffic signals are controlled integrated experimental teaching unit by embedded Control center 1, working dc power 2, feature operation selector button 3, signal controlling scheme serial communication interface 4, signal controlling scheme network communication interface 5, feature operation LCD display 6, traffic signals control analog demenstration 7, coordinating control of traffic signals tandem outgoing interface 8, light current drives forceful electric power output interface 9 and computing machine is formed, its structure is: embedded Control center 1 respectively with working dc power 2, feature operation selector button 3, signal controlling scheme serial communication interface 4, signal controlling scheme network communication interface 5, feature operation LCD display 6, traffic signals control analog demenstration 7, coordinating control of traffic signals tandem outgoing interface 8 drives forceful electric power output interface 9 with light current and is connected, and signal controlling scheme network communication interface 5 is connected with computing machine with signal controlling scheme serial communication interface 4.This device is encapsulated in the aluminium alloy box, and a poly (methyl methacrylate) plate is installed above the circuit, and length and width are identical with printed circuit board.
The selection of control device each several part components and parts:
The S3C44B0X chip that embedded Control center 1 module CPU selects for use Samsung to produce, expansion 2M FLASH and 16MSDRAM, the model of FLASH is SST39VF160, the model of SDRAM is HY57V641620HC.
Feature operation selector button 3 is selected general four pin encapsulation button for use, adopts the 4*4 matrix circuit, by S3C44B0XDEGPC0～GPC7 pin control.
Work crystal oscillator crystal oscillator frequency is 10MHz.
Reset circuit adopts the MAX811 reset circuit, finishes by reset key 15 to reset.
The LED timing shows that charactron 7-2 is made up of the digital display tube of 7 sections LED of common cathode,, is controlled by 74HC595 respectively totally by 8.
Signal lamp group left-hand rotation traffic lights 7-3, craspedodrome traffic lights 7-4, right-hand rotation traffic lights 7-5, bicycle traffic lights 7-6 and walkway traffic lights 7-7 are made up of 4 groups of red, yellow, green LED signal lamps.Every group 16, indication motor vehicle and bicycle left-hand rotation, craspedodrome, right-hand rotation state and walkway 7-1 state.The LED signal lamp is controlled by 74HC595.
Electric pressure converter is mainly by circuit of three-terminal voltage-stabilizing integrated 7805 devices, LM1117-5, LM1117-33, LM1117-25 realizes, produces 5V, 3.3V respectively, 2.5V voltage, power switch 12 is realized the open and close of power supply power supply, power supply indication 11 reflection switching-on and switching-off states.
Feature operation LCD display 6 is selected the monochromatic character display module of TG12864 for use, by the LCD driving pin control of S3C44B0X.
Serial port circuit adopts the MAX232EWE chip, and serial interface is a DB9 pin type socket.
Lattice network adopts RTL8019 network chip 14, carries out the test of network signal by network test point 13, and network interface is the RJ45 interface, is forbidden or the use of enable network interface by wire jumper 10.
Coordinating control of traffic signals tandem outgoing interface 8 adopts the double needle socket of IDC10, realizes cascade by 74HC595 control.
Battery 16 guarantees the continuity of system time.
Claims (6)
1, a kind of traffic signals are controlled integrated experimental teaching unit, it is characterized in that: it is by embedded Control center (1), working dc power (2), feature operation selector button (3), signal controlling scheme serial communication interface, signal controlling scheme network communication interface, feature operation LCD display (6), traffic signals control analog demenstration (7), coordinating control of traffic signals tandem outgoing interface (8), light current drives forceful electric power output interface (9) and computing machine is formed, embedded Control center (1) respectively with working power (2), feature operation selector button (3), signal controlling scheme serial communication interface (4), signal controlling scheme network communication interface (5), feature operation LCD display (6), traffic signals control analog demenstration (7), coordinating control of traffic signals tandem outgoing interface (8) drives forceful electric power output interface (9) with light current and is connected, and signal controlling scheme network communication interface is connected with computing machine with signal controlling scheme serial communication interface.
2, traffic signals according to claim 1 are controlled integrated experimental teaching unit, it is characterized in that: the CPU in embedded Control center (1) is the S3C44BOX chip, expansion 2M FLASH and 16MSDRAM, the model of FLASH is SST39VF160, the model of SDRAM is HY57V641620HC.
3, traffic signals according to claim 1 are controlled integrated experimental teaching unit, it is characterized in that: described feature operation selector button (3) is four a pin encapsulation button, adopt the 4*4 matrix circuit, by S3C44BOXDE GPC0～GPC7 pin control, work crystal oscillator crystal oscillator frequency is 10MHz, and reset circuit adopts the MAX811 reset circuit.
4, traffic signals according to claim 1 are controlled integrated experimental teaching unit, it is characterized in that: the LED timing demonstration charactron (7-2) of described feature operation LED display (6) is made up of the digital display tubes of 7 sections LED of common cathode, totally 8,74HC595 control is arranged respectively, signal lamp group left-hand rotation traffic lights (7-3), craspedodrome traffic lights (7-4), right-hand rotation traffic lights (7-5), bicycle traffic lights (7-6) and walkway traffic lights (7-7) are red by 4 groups, yellow, green LED signal lamp is formed, every group 16, indication motor vehicle and bicycle turn left, keep straight on, right-hand rotation state and walkway state, the LED signal lamp is controlled by 74HC595.
5, traffic signals according to claim 1 are controlled integrated experimental teaching unit, it is characterized in that: described feature operation LED display (6) is selected the monochromatic character display module of TG12864 for use, by the LCD driving pin control of S3C44BOX.
6, traffic signals according to claim 1 are controlled integrated experimental teaching unit, it is characterized in that: described signal controlling scheme serial communication interface (4) adopts the MAX232EWE chip, and serial interface is a DB9 pin type socket; Lattice network adopts the RTL8019 chip, and network interface is the RJ45 interface; Coordinating control of traffic signals tandem outgoing interface (8) adopts the double needle socket of IDC10, realizes cascade by 74HC595 control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820113715U CN201374128Y (en) | 2008-12-27 | 2008-12-27 | Experimental teaching device with integrated traffic signal control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200820113715U CN201374128Y (en) | 2008-12-27 | 2008-12-27 | Experimental teaching device with integrated traffic signal control |
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| CN201374128Y true CN201374128Y (en) | 2009-12-30 |
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| CN200820113715U Expired - Fee Related CN201374128Y (en) | 2008-12-27 | 2008-12-27 | Experimental teaching device with integrated traffic signal control |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104200720A (en) * | 2014-07-24 | 2014-12-10 | 北方工业大学 | Portable multifunctional traffic signal control lamp panel device |
| CN104240566A (en) * | 2013-06-18 | 2014-12-24 | 北京航天芯光科技有限公司 | Electronic information comprehensive experiment system and experiment method |
| CN105810049A (en) * | 2016-05-06 | 2016-07-27 | 吉林大学 | Traffic signal control electronic experiment teaching device |
| CN104200719B (en) * | 2014-07-24 | 2016-10-05 | 北方工业大学 | Induction control method of multifunctional traffic signal control lamp panel |
| CN106710376A (en) * | 2015-11-17 | 2017-05-24 | 秦皇岛中科畅讯科技有限公司 | Intelligent traffic education training system |
| CN106846983A (en) * | 2017-03-03 | 2017-06-13 | 北方工业大学 | Traffic signal control demonstration box based on FPGA development module |
| CN109830145A (en) * | 2019-02-22 | 2019-05-31 | 杭州英联科技有限公司 | A kind of control method of sensor and observation and control technology comprehensive experimental device |
| CN114550546A (en) * | 2022-02-26 | 2022-05-27 | 河北水利电力学院 | Intersection signal timing method for teaching |
-
2008
- 2008-12-27 CN CN200820113715U patent/CN201374128Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240566A (en) * | 2013-06-18 | 2014-12-24 | 北京航天芯光科技有限公司 | Electronic information comprehensive experiment system and experiment method |
| CN104200720A (en) * | 2014-07-24 | 2014-12-10 | 北方工业大学 | Portable multifunctional traffic signal control lamp panel device |
| CN104200719B (en) * | 2014-07-24 | 2016-10-05 | 北方工业大学 | Induction control method of multifunctional traffic signal control lamp panel |
| CN106710376A (en) * | 2015-11-17 | 2017-05-24 | 秦皇岛中科畅讯科技有限公司 | Intelligent traffic education training system |
| CN105810049A (en) * | 2016-05-06 | 2016-07-27 | 吉林大学 | Traffic signal control electronic experiment teaching device |
| CN106846983A (en) * | 2017-03-03 | 2017-06-13 | 北方工业大学 | Traffic signal control demonstration box based on FPGA development module |
| CN109830145A (en) * | 2019-02-22 | 2019-05-31 | 杭州英联科技有限公司 | A kind of control method of sensor and observation and control technology comprehensive experimental device |
| CN114550546A (en) * | 2022-02-26 | 2022-05-27 | 河北水利电力学院 | Intersection signal timing method for teaching |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20101227 |