CN203422850U - Crossroad traffic light system based on single-chip microcomputer control - Google Patents
Crossroad traffic light system based on single-chip microcomputer control Download PDFInfo
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- CN203422850U CN203422850U CN201320526301.9U CN201320526301U CN203422850U CN 203422850 U CN203422850 U CN 203422850U CN 201320526301 U CN201320526301 U CN 201320526301U CN 203422850 U CN203422850 U CN 203422850U
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Abstract
The utility model discloses a crossroad traffic light system based on single-chip microcomputer control. The crossroad traffic light system comprises a single-chip microcomputer which is respectively connected with a signal light control circuit, a countdown display circuit, a signal light fault detection circuit, a signal processing circuit, an input circuit and a communication device. The signal light control circuit is connected with signal lights. The signal light fault detection circuit is connected with the signal lights. The signal processing circuit is connected with a signal acquisition circuit. The communication device is connected with a communication master terminal. According to the crossroad traffic light system, traffic lights can be controlled according to vehicle flow of a crossroad so that passage efficiency is enhanced. Besides, the crossroad traffic light system is convenient to install and maintain and high in practicality.
Description
Technical field
The utility model relates to information control field, specifically refers to a kind of based on monolithic processor controlled crossroad access lamp system.
Background technology
Traffic transport power is the basis of weighing the development of a city and even country.In Urban Traffic Planning, traffic lights plays a part indispensable.Although China is since reform and opening-up, communications and transportation aspect has obtained huge progress, and China's urban transportation lamp system is appointed so more single, has not caught up with the step of China's development.The red green signal lamp that single urban transportation lamp system is arranged on crossroad is all fixedly timing conventionally, and car few phenomenon of waiting for bus usually can occur more, greatly reduces traffic efficiency.
Utility model content
A kind of providing based on monolithic processor controlled crossroad access lamp system is provided the purpose of this utility model, and this system can be controlled traffic lights flexibly according to vehicle flowrate, can improve traffic efficiency.
The utility model is achieved through the following technical solutions: based on monolithic processor controlled crossroad access lamp system, comprise single-chip microcomputer, single-chip microcomputer is connected with communicator with signal lamp control circuit, countdown display circuit, signal lamp failure testing circuit, signal processing circuit, input circuit respectively, signal lamp control circuit is connected with signal lamp, signal lamp failure testing circuit is connected with signal lamp, signal processing circuit is connected with signal acquisition circuit, and communicator is connected with the total end of communication.
Further, described signal acquisition circuit comprises geomagnetic sensor.Geomagnetic sensor has following advantage: (1) installation, maintenance is convenient, needn't seal track, road pavement and destroy littlely, when need not destroy road surface when install check point suspension bracket or side, during maintenance, only need check geomagnetic sensor; (2) check point is not subject to destruction, is not subject to road surface moving influence; (3) geomagnetic sensor be utilize magnetic field of the earth ferromagnetic object by time variation detect, so its not impact of climate; (4), by the size that can identify ferromagnetic object that arranges to sensitivity, can roughly judge the type of vehicle; (5) to the not reaction of nonferromagnetic object, therefore can effectively reduce flase drop.
Further, described signal acquisition circuit comprises monitoring camera.Monitoring camera is semiconductor imaging device, thus there is highly sensitive, anti-high light, little, the advantage such as volume is little, the life-span is long, anti-vibration distorts.
Further, described input circuit is connected with wireless signal transmitter, is connected to the wireless signal receiver matching on single-chip microcomputer.By wireless connections, can realize Long-distance Control.
Further, on described single-chip microcomputer, be connected to reset circuit.When single-chip microcomputer is due to some factor, while being absorbed in endless loop, by reset circuit, single-chip microcomputer can be realized reset, and single-chip microcomputer works on.
Further, described communicator is GPRS communicator.GPRS data transmission has following characteristics: (1) is always online, and user and network are kept in touch at any time; (2) owing to adopting group technology, message transmission rate is high, meets the requirement of system to real-time communication; (3) adopt miniwatt short antenna, anti-lightning strike; (4) charging is reasonable; (5) communication line is safeguarded by the professional operation business of China Mobile, need not worry the maintenance of circuit.
The utility model compared with prior art, has the following advantages and beneficial effect:
(1) the utility model can be controlled traffic lights according to Traffic Flow at Intersection, promotes traffic efficiency;
(2) the utility model installation and maintenance are convenient, practical.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment 1:
As shown in Figure 1, a kind of based on monolithic processor controlled crossroad access lamp system, comprise single-chip microcomputer, single-chip microcomputer is connected with communicator with signal lamp control circuit, countdown display circuit, signal lamp failure testing circuit, signal processing circuit, input circuit respectively, signal lamp control circuit is connected with signal lamp, signal lamp failure testing circuit is connected with signal lamp, and signal processing circuit is connected with signal acquisition circuit, and communicator is connected with the total end of communication.
In the present embodiment, input circuit is realized the setting to single-chip microcomputer, signal acquisition circuit gathers wagon flow signal, after processing, signal processing circuit is transferred on single-chip microcomputer, after single-chip microcomputer is processed, on the one hand output signal in signal lamp control circuit, bright the opening of signal controlling lamp system control signal lamp, single-chip microcomputer output signal is in countdown display circuit on the other hand, countdown display circuit displaing lamp bright excess time of opening.On signal lamp, be connected to signal lamp failure testing circuit, when signal lamp breaks down, signal lamp failure testing circuit sends to detection case on single-chip microcomputer, after single-chip microcomputer is processed, by the communicator being connected on single-chip microcomputer, be transferred to the total end of communication, after total end personnel that communicate by letter find, timely handling failure lamp.In the present embodiment, single-chip microcomputer processing mode has two kinds.
The processing mode of single-chip microcomputer:
Input circuit first the bright of signalization lamp opens the time, specifically refer to arrange bright shortest time of opening of red eye and maximum duration, when certain moves towards that red eye is bright to be opened, signal acquisition circuit Acquisition Circuit gathers the wagon flow signal of this trend, when vehicle number reaches certain, and the bright time of opening of red eye, while being not less than the shortest time of input circuit setting, red eye was dimmed, and greensignal light is bright to be opened; When vehicle number does not reach one regularly always, to open the duration automatically dimmed while reaching the maximum duration that input circuit arranges bright for red eye, and greensignal light is bright to be opened.
The second processing mode of single-chip microcomputer:
First signalization lamp is bright opens the time for input circuit, specifically refers to bright shortest time of opening of red eye and maximum duration are set.Generalized case, in the short time, vehicle flowrate changes little.Signal acquisition circuit gathers crossroad two and moves towards the vehicle number passing through when nearest greensignal light is bright to be opened, two move towards the bright time of opening of red eye and meet and to be not less than the shortest time of input circuit setting and to be not more than under the prerequisite of the maximum duration that input circuit arranges at the parting of the ways, the inverse ratio that the bright ratio that opens the time of red eye equals the vehicle flowrate that passes through when greensignal light is bright to be opened is in theory moved towards in crossroad two.As input circuit arranges, red eye is bright to be opened 15 seconds shortest times, maximum duration 60 seconds, east-west greensignal light is bright, and to open in the time be 10 by vehicle, when south-north direction greensignal light is bright, open while being 20 by vehicle in the time, now the bright time of opening of east-west red eye is 30 seconds, and the bright time of opening of south-north direction traffic lights is 15 seconds; When south-north direction greensignal light is bright while opening in the time by 50 cars, now the bright time of opening of east-west red eye is 60 seconds, and the bright time of opening of south-north direction traffic lights is 15 seconds.
Embodiment 2:
The present embodiment is on the basis of embodiment 1, and signal acquisition circuit comprises geomagnetic sensor.Geomagnetic sensor has following advantage: (1) installation, maintenance is convenient, needn't seal track, road pavement and destroy littlely, when need not destroy road surface when install check point suspension bracket or side, during maintenance, only need check geomagnetic sensor; (2) check point is not subject to destruction, is not subject to road surface moving influence; (3) geomagnetic sensor be utilize magnetic field of the earth ferromagnetic object by time variation detect, so its not impact of climate; (4), by the size that can identify ferromagnetic object that arranges to sensitivity, can roughly judge the type of vehicle; (5) to the not reaction of nonferromagnetic object, therefore can effectively reduce flase drop.Other parts of the present embodiment are identical with embodiment 1, repeat no more.
Embodiment 3:
The present embodiment is on the basis of embodiment 1, and signal acquisition circuit comprises monitoring camera.Monitoring camera is semiconductor imaging device, thus there is highly sensitive, anti-high light, little, the advantage such as volume is little, the life-span is long, anti-vibration distorts.Other parts of the present embodiment are identical with embodiment 1, repeat no more.
Embodiment 4:
The present embodiment is further connected to reset circuit on the basis of embodiment 1 on single-chip microcomputer.When single-chip microcomputer is due to some factor, while being absorbed in endless loop, by reset circuit, single-chip microcomputer can be realized reset, and single-chip microcomputer works on.Other parts of the present embodiment are identical with embodiment 1, repeat no more.
The above; it is only preferred embodiment of the present utility model; not the utility model is done to any pro forma restriction, any simple modification, equivalent variations that every foundation technical spirit of the present utility model is done above embodiment, within all falling into protection domain of the present utility model.
Claims (6)
1. based on monolithic processor controlled crossroad access lamp system, it is characterized in that: comprise single-chip microcomputer, described single-chip microcomputer is connected with communicator with signal lamp control circuit, countdown display circuit, signal lamp failure testing circuit, signal processing circuit, input circuit respectively, described signal lamp control circuit is connected with signal lamp, described signal lamp failure testing circuit is connected with signal lamp, described signal processing circuit is connected with signal acquisition circuit, and described communicator is connected with the total end of communication.
2. according to claim 1 based on monolithic processor controlled crossroad access lamp system, it is characterized in that: described signal acquisition circuit comprises geomagnetic sensor.
3. according to claim 1 based on monolithic processor controlled crossroad access lamp system, it is characterized in that: described signal acquisition circuit comprises monitoring camera.
4. according to claim 1 based on monolithic processor controlled crossroad access lamp system, it is characterized in that: described input circuit is connected with wireless signal transmitter, on single-chip microcomputer, be connected to the wireless signal receiver matching.
5. according to claim 1 based on monolithic processor controlled crossroad access lamp system, it is characterized in that: on described single-chip microcomputer, be connected to reset circuit.
6. according to claim 1 based on monolithic processor controlled crossroad access lamp system, it is characterized in that: described communicator is GPRS communicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320526301.9U CN203422850U (en) | 2013-08-28 | 2013-08-28 | Crossroad traffic light system based on single-chip microcomputer control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320526301.9U CN203422850U (en) | 2013-08-28 | 2013-08-28 | Crossroad traffic light system based on single-chip microcomputer control |
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| Publication Number | Publication Date |
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| CN203422850U true CN203422850U (en) | 2014-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320526301.9U Expired - Fee Related CN203422850U (en) | 2013-08-28 | 2013-08-28 | Crossroad traffic light system based on single-chip microcomputer control |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143262A (en) * | 2014-08-07 | 2014-11-12 | 成都信鑫信息技术有限公司 | Crossroad traffic light control system |
| CN110956799A (en) * | 2018-09-26 | 2020-04-03 | 华为技术有限公司 | Traffic information processing method and device |
-
2013
- 2013-08-28 CN CN201320526301.9U patent/CN203422850U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143262A (en) * | 2014-08-07 | 2014-11-12 | 成都信鑫信息技术有限公司 | Crossroad traffic light control system |
| CN110956799A (en) * | 2018-09-26 | 2020-04-03 | 华为技术有限公司 | Traffic information processing method and device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20140828 |
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| EXPY | Termination of patent right or utility model |