CN202258020U - Programmable logic controller (PLC) experimental system for controlling traffic light in real time - Google Patents
Programmable logic controller (PLC) experimental system for controlling traffic light in real time Download PDFInfo
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- CN202258020U CN202258020U CN2011203511829U CN201120351182U CN202258020U CN 202258020 U CN202258020 U CN 202258020U CN 2011203511829 U CN2011203511829 U CN 2011203511829U CN 201120351182 U CN201120351182 U CN 201120351182U CN 202258020 U CN202258020 U CN 202258020U
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Abstract
The utility model discloses a programmable logic controller (PLC) experimental system for controlling a traffic light in real time. The PLC experimental system comprises a PLC, wherein an L port and an N port of the PLC are connected with a power supply of alternating-current 220 V; a communication (COM2) port of the PLC is connected with a negative electrode of direct-current 24 V, an input port of the PLC is connected with a signal output end of a photoelectric sensor, and an output port of the PLC is connected with the negative electrode of a traffic light lamp; a positive electrode of the photoelectric sensor is connected with the positive electrode of direct-current 24 V, and the negative electrode of the photoelectric sensor is connected with the negative electrode of direct-current 24 V; and the positive electrode of the traffic light lamp is connected with the positive electrode of direct-current 24 V. The PLC experimental system has the advantages that: a traffic light real-time control experiment for changing the working time of red and green lights of a traffic light system in real time according to vehicle flow can be performed; contents of the experiment are expanded; and a teaching effect is improved.
Description
Technical field
The utility model relates to a kind of PLC experimental system, the concrete PLC experimental system that relates to a kind of real-time traffic lamp control.
Background technology
The traffic transport power is the basis of weighing a city and even national development.At present, China's traffic lights systematic comparison is single, and the crossroad access lamp all is fixedly timing basically, and traffic department confirms the work duration of a fixed value as traffic lights according to statistician's road traffic statistic.This fixed value can not change along with the vehicle flowrate on the real road flexibly, and vehicle pass-through efficient is low.
Many colleges and universities have all offered the PLC course electric with the electrical category specialty.The PLC control of crossroad access lamp is a modal experiment in the PLC course.Because the traffic lights of many manufacturers control PLC experimental system all is to adopt the fixedly traffic light systems of timing of light emitting diode simulation, can't carry out according to vehicle flowrate the real-time traffic lamp control experiment of real time altering traffic light systems traffic lights work duration.
The utility model content
To the deficiency of above-mentioned prior art, the technical matters that the utility model will solve provides a kind of PLC experimental system of real-time traffic lamp control.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of PLC experimental system of real-time traffic lamp control; Comprise a PLC; The L port of said PLC is connected the alternating current 220V power supply with the N port; The COM2 port of said PLC connects the negative pole of direct current 24V, and the input port of said PLC connects the signal output part of said photoelectric sensor, and the output port of said PLC connects the negative pole of said traffic lights light fixture.
Preferably, the positive pole of said photoelectric sensor connects the positive pole of direct current 24V, and the negative pole of said photoelectric sensor connects the negative pole of direct current 24V.
Preferably, the positive pole of said traffic lights light fixture connects the positive pole of direct current 24V
The principle of work and the beneficial effect of the PLC experimental system of a kind of real-time traffic lamp control of the utility model are following:
On each direction of road, be equipped with a pair of photoelectric sensor, each is far away as far as possible to the distance of photoelectric sensor, but should guarantee that the photoelectric sensor distance of all directions all equates.The input port of the corresponding PLC of each photoelectric sensor.Photoelectric sensor away from the crossing is used to detect the vehicle number that gets into the interval, track; Photoelectric sensor near the crossing is used to detect the vehicle number that rolls the interval away from; Thereby can calculate road wagon flow queuing amount in a burst length, accurately reflect the road traffic state.According to vehicle flowrate, the work duration of PLC control traffic light systems traffic lights is realized the real-time control of traffic lights, improves traffic efficiency.
A kind of PLC experimental system of real-time traffic lamp control can be carried out according to vehicle flowrate, and experiment content is expanded in the real-time traffic lamp control experiment of real time altering traffic light systems traffic lights work duration, improves teaching efficiency.
Above-mentioned explanation only is the general introduction of the utility model technical scheme, in order more to know the technological means of understanding the utility model, and can implement according to the content of instructions, below with the preferred embodiment of the utility model and conjunction with figs. specify as after.The embodiment of the utility model is provided by following examples and accompanying drawing thereof in detail.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing and embodiment the technology implementation process of the utility model is further specified.
As shown in Figure 1; A kind of PLC experimental system of real-time traffic lamp control; Comprise a PLC (U1); It is characterized in that: said PLC (U1) the L port be connected the alternating current 220V power supply with the N port; The COM2 port of said PLC (U1) connects the negative pole of direct current 24V, and the input port X0 of said PLC (U1) connects the signal output part of said photoelectric sensor S0, and the input port X1 of said PLC (U1) connects the signal output part of said photoelectric sensor S1; The input port X2 of said PLC (U1) connects the signal output part of said photoelectric sensor S2; The input port X3 of said PLC (U1) connects the signal output part of said photoelectric sensor S3, and the input port X4 of said PLC (U1) connects the signal output part of said photoelectric sensor S4, and the input port X5 of said PLC (U1) connects the signal output part of said photoelectric sensor S5; The input port X6 of said PLC (U1) connects the signal output part of said photoelectric sensor S6, and the input port X7 of said PLC (U1) connects the signal output part of said photoelectric sensor S7; The output port Y0 of said PLC (U1) connects the negative pole of said traffic lights light fixture L1, L4; The output port Y1 of said PLC (U1) connects the negative pole of said traffic lights light fixture L2, L5; The output port Y2 of said PLC (U1) connects the negative pole of said traffic lights light fixture L3, L6; The output port Y3 of said PLC (U1) connects the negative pole of said traffic lights light fixture L7, L10; The output port Y4 of said PLC (U1) connects the negative pole of said traffic lights light fixture L8, L11, and the output port Y5 of said PLC (U1) connects the negative pole of said traffic lights light fixture L9, L12;
Further, the positive pole of said photoelectric sensor S0, S1, S2, S3, S4, S5, S6, S7 connects the positive pole of direct current 24V, and the negative pole of said photoelectric sensor S0, S1, S2, S3, S4, S5, S6, S7 connects the negative pole of direct current 24V.
Preferably, the positive pole of said traffic lights light fixture L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12 connects the positive pole of direct current 24V.
The foregoing description is technical conceive and the characteristics for the utility model is described just, its objective is to be the content that lets the one of ordinary skilled in the art can understand the utility model and to implement according to this, can not limit the protection domain of the utility model with this.The variation or the modification of every equivalence of having done according to the essence of the utility model content all should be encompassed in the protection domain of the utility model.
Claims (3)
1. the PLC experimental system of real-time traffic lamp control; Comprise a PLC (U1); It is characterized in that: the L port of said PLC (U1) is connected the alternating current 220V power supply with the N port; The COM2 port of said PLC (U1) connects the negative pole of direct current 24V, and the input port X0 of said PLC (U1) connects the signal output part of said photoelectric sensor S0, and the input port X1 of said PLC (U1) connects the signal output part of said photoelectric sensor S1; The input port X2 of said PLC (U1) connects the signal output part of said photoelectric sensor S2; The input port X3 of said PLC (U1) connects the signal output part of said photoelectric sensor S3, and the input port X4 of said PLC (U1) connects the signal output part of said photoelectric sensor S4, and the input port X5 of said PLC (U1) connects the signal output part of said photoelectric sensor S5; The input port X6 of said PLC (U1) connects the signal output part of said photoelectric sensor S6, and the input port X7 of said PLC (U1) connects the signal output part of said photoelectric sensor S7; The output port Y0 of said PLC (U1) connects the negative pole of said traffic lights light fixture L1, L4; The output port Y1 of said PLC (U1) connects the negative pole of said traffic lights light fixture L2, L5; The output port Y2 of said PLC (U1) connects the negative pole of said traffic lights light fixture L3, L6; The output port Y3 of said PLC (U1) connects the negative pole of said traffic lights light fixture L7, L10; The output port Y4 of said PLC (U1) connects the negative pole of said traffic lights light fixture L8, L11, and the output port Y5 of said PLC (U1) connects the negative pole of said traffic lights light fixture L9, L12.
2. the PLC experimental system of real-time traffic lamp control according to claim 1; It is characterized in that: the positive pole of said photoelectric sensor S0, S1, S2, S3, S4, S5, S6, S7 connects the positive pole of direct current 24V, and the negative pole of said photoelectric sensor S0, S1, S2, S3, S4, S5, S6, S7 connects the negative pole of direct current 24V.
3. the PLC experimental system of real-time traffic lamp control according to claim 1 is characterized in that: the positive pole of said traffic lights light fixture L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11, L12 connects the positive pole of direct current 24V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203511829U CN202258020U (en) | 2011-09-20 | 2011-09-20 | Programmable logic controller (PLC) experimental system for controlling traffic light in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203511829U CN202258020U (en) | 2011-09-20 | 2011-09-20 | Programmable logic controller (PLC) experimental system for controlling traffic light in real time |
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| CN202258020U true CN202258020U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011203511829U Expired - Fee Related CN202258020U (en) | 2011-09-20 | 2011-09-20 | Programmable logic controller (PLC) experimental system for controlling traffic light in real time |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956058A (en) * | 2014-04-09 | 2014-07-30 | 杭州电子科技大学 | Device and method for simulating traffic signal lamp intelligent control experiment |
| CN105788419A (en) * | 2016-05-12 | 2016-07-20 | 广西职业技术学院 | Simulation traffic light system training platform for teaching |
| CN110728844A (en) * | 2019-09-11 | 2020-01-24 | 平安科技（深圳）有限公司 | Traffic light self-adaptive control method and device, traffic control equipment and storage medium |
-
2011
- 2011-09-20 CN CN2011203511829U patent/CN202258020U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956058A (en) * | 2014-04-09 | 2014-07-30 | 杭州电子科技大学 | Device and method for simulating traffic signal lamp intelligent control experiment |
| CN105788419A (en) * | 2016-05-12 | 2016-07-20 | 广西职业技术学院 | Simulation traffic light system training platform for teaching |
| CN110728844A (en) * | 2019-09-11 | 2020-01-24 | 平安科技（深圳）有限公司 | Traffic light self-adaptive control method and device, traffic control equipment and storage medium |
| CN110728844B (en) * | 2019-09-11 | 2022-02-22 | 平安科技（深圳）有限公司 | Traffic light self-adaptive control method and device, traffic control equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120530 Termination date: 20120920 |