CN208044855U - A kind of pedestrian crossing traffic signal lamp control system - Google Patents
A kind of pedestrian crossing traffic signal lamp control system Download PDFInfo
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- CN208044855U CN208044855U CN201721566673.9U CN201721566673U CN208044855U CN 208044855 U CN208044855 U CN 208044855U CN 201721566673 U CN201721566673 U CN 201721566673U CN 208044855 U CN208044855 U CN 208044855U
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- signal lamp
- microcontroller
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- control system
- pedestrian crossing
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Abstract
The application provides a kind of pedestrian crossing traffic signal lamp control system,Applied to traffic signalization and field of traffic safety,Including video information harvester,Microcontroller,Relay and signal lamp trigger switch,Video information harvester is connected with microcontroller,Video information is transmitted to the microcontroller,Microcontroller carries out processing to video information and exports control signal to relay,Control the action of relay,Relay is electrically connected with signal lamp trigger switch,Control is serially connected with the opening and closing of the signal lamp trigger switch in traffic lights electric power loop,The opening and closing of final control pedestrian crossing traffic signal lamp,Pedestrian crossing traffic signal lamp control system provided by the present application,Automatic trigger pedestrian crossing traffic signal lamp,Effectively reduce the delay of pedestrian's street crossing,Pedestrian is free of a burden,Traffic safety when ensureing current.
Description
Technical field
The utility model belongs to traffic signalization and field of traffic safety more particularly to a kind of pedestrian crossing traffic signal
Lamp control system.
Background technology
With the development of the social economy, participant's quantity of road traffic is more and more huger, wagon flow, the stream of people are seething,
Traffic lights are played an important role as one of traffic control signal in traffic control and traffic safety etc..
Pedestrian crossing signal lamp can both ensure safety when pedestrian's street crossing, while can improve pedestrian crossing efficiency
With traffic intersection traffic efficiency.The pedestrian crossing signal lamp of prior art application can substantially be divided into two classes, and one kind is provided with solid
Determining timing, each pedestrian is fixed non-adjustable by the time, causes average street crossing delay longer, in the case where vehicle flowrate is smaller,
It is delayed longer；In addition a kind of pedestrian crossing signal lamp is provided with pedestrian's street crossing button, the unlatching of pedestrian's manual control signal lamp, this
Although class signal lamp relative time delay is shorter, especially in the case where vehicle flowrate is smaller, the street crossing that can effectively shorten is delayed, and can increase
Add the burden of pedestrian, and inevitably cause to be delayed, in the case where night and pedestrian are unfamiliar with road conditions equal environment, pedestrian also has can
It can forget manually opened crossing street signal lamp, influence current safety.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of pedestrian crossing traffic signal lamp control systems, automatically
Pedestrian crossing traffic signal lamp is triggered, the delay of pedestrian's street crossing is effectively reduced, pedestrian is free of a burden, traffic peace when ensureing current
Entirely.
Concrete scheme is as follows：
Pedestrian crossing traffic signal lamp control system provided by the utility model, including：Video information harvester, micro-control
Device, relay and signal lamp trigger switch processed, wherein
The video information harvester is connected with the microcontroller, and video information is transmitted to the microcontroller；
The microcontroller is connected with the relay, controls the working condition of the relay；
The relay is electrically connected with the signal lamp trigger switch, controls the work shape of the signal lamp trigger switch
State；
The signal lamp trigger switch is serially connected in traffic lights electric power loop, controls the work shape of traffic lights
State.
Optionally, the video information harvester includes night vision cam.
Optionally, the video information harvester is connected by USB interface with the microcontroller.
Optionally, the microcontroller includes Raspberry Pi.
Optionally, the Raspberry Pi is the Raspberry Pi of two generation Type Bs or more model.
Optionally, the relay includes direct current 5V relays or direct current 3.3V relays.
Optionally, the signal lamp trigger switch includes a pair of of normally opened contact and a pair of of normally-closed contact, wherein
The normally opened contact is serially connected in green traffic lamp electric power loop；
The normally-closed contact is serially connected in red traffic light electric power loop.
Optionally, pedestrian crossing traffic signal lamp control system provided by the present application, further includes waterproof case, for encapsulating
The microcontroller.
Optionally, pedestrian crossing traffic signal lamp control system provided by the present application further includes microcontroller power supply, for institute
It states microcontroller and electric energy is provided.
Compared with prior art, above-mentioned technical proposal provided by the utility model includes：Video information harvester, micro-control
Device, relay and signal lamp trigger switch processed, video information harvester are connected with microcontroller, are passed to the microcontroller
Video information is passed, microcontroller carries out processing to video information and exports control signal to relay, controls the action of relay,
Relay is electrically connected with signal lamp trigger switch, and control is serially connected with the signal lamp trigger switch in traffic lights electric power loop
It opens and closes, the final opening and closing for controlling pedestrian crossing traffic signal lamp, pedestrian crossing traffic letter provided by the present application
Ship's light control system, automatic trigger pedestrian crossing traffic signal lamp effectively reduce the delay of pedestrian's street crossing, and pedestrian is free of a burden, protect
Traffic safety when card is current.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
It can be obtain other attached drawings according to these attached drawings.
Fig. 1 is the functional block diagram of pedestrian crossing traffic signal lamp control system provided by the embodiments of the present application；
Fig. 2 is the application scenario diagram of pedestrian crossing traffic signal lamp control system provided by the embodiments of the present application.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Referring to Fig. 1, the functional block diagram of pedestrian crossing traffic signal lamp control system provided by the embodiments of the present application, the application
Embodiment provide pedestrian crossing traffic signal lamp control system include：Video information harvester 1, microcontroller 2, relay
3 and signal lamp trigger switch 4, wherein
Video information harvester 1 is fixedly installed on holder, acquires the pedestrian's street crossing video information in predeterminable area, and
The video information of pedestrian's street crossing is passed to coupled microcontroller 2.
Microcontroller 2 whether there is pedestrian after obtaining pedestrian's street crossing video information in judgement predeterminable area, if it is decided that
Predeterminable area memory then carries out accumulative timing in pedestrian to the stand-by period of pedestrian, is more than often the default stand-by period when timing
When threshold value, then pedestrian is judged there are street crossing demand, microcontroller 2 exports high level letter to the relay 3 being connected with microcontroller 2
Number；If being less than preset time threshold without pedestrian or pedestrian's stand-by period in predeterminable area, judgement is without street crossing demand, microcontroller
Device 2 exports low level signal to relay 3.
Relay 3 obtains the high level of the output of microcontroller 2, the coil of relay 3 obtain it is electric, by electromagnetic force control with after
There is electrical connection in electric appliance 3 and the signal lamp trigger switch 4 being series in traffic lights electric power loop is closed, so that signal
Lamp electric power loop forms closed circuit, lights crossing street signal lamp；Conversely, relay 3 obtains the low level of the output of microcontroller 2,
The coil losing electricity of relay 3, signal lamp trigger switch 4 disconnect, and signal lamp electric power loop open circuit, crossing street signal lamp will not be by point
It is bright.
As it can be seen that using pedestrian crossing traffic signal lamp control system provided by the embodiments of the present application, video information acquisition dress
The pedestrian's street crossing video information in 1 acquisition predeterminable area is set, and passes to microcontroller 2, microcontroller 2 judges in predeterminable area
With the presence or absence of pedestrian's street crossing demand, and by controlling the relay 3 being connected with microcontroller 2, and then controls and exist with relay 3
The closure of signal lamp trigger switch 4 that is being electrically connected and being serially connected with signal lamp electric power loop or disconnection.When there are pedestrian's street crossings to need
When asking, signal lamp trigger switch 4 is closed, and signal lamp electric power loop is closed, and traffic lights are lighted, triggered manually without pedestrian,
Pedestrian can cross the street safely, and when no pedestrian's street crossing demand, signal lamp not can be lit, pedestrian's street crossing provided by the embodiments of the present application
Traffic light control system can realize automatic trigger pedestrian crossing traffic signal lamp, effectively reduce the delay of pedestrian's street crossing, row
People is free of a burden, traffic safety when ensureing current.
It should be noted that microcontroller judges to whether there is pedestrian in the predeterminable area in pedestrian's street crossing video information,
It can be realized by the existing technology for identifying personage from image；And in microcontroller analysis predeterminable area, there are the continuous of pedestrian
The time of image carries out the accumulative timing of the stand-by period of pedestrian, it is believed that is the continuous appearance simply with attribute image
The accumulation process of time；Therefore, although in the utility model, microcontroller needs are realized by programming, these programs
Prior art realization can be used for reference；It is emphasized that the utility model by video information harvester, microcontroller, after
Combination, the connection of the hardware configurations such as electric appliance and signal lamp trigger switch, form pedestrian crossing traffic signal lamp provided by the present application
Control system, video information harvester to the microcontroller transmit video information, microcontroller to video information at
The action of relay is managed and controls, relay is electrically connected with signal lamp trigger switch, and control is serially connected with traffic lights power supply and returns
The opening and closing of signal lamp trigger switch in road, and the opening and closing of pedestrian crossing signal lamp are finally controlled, there is row
When people needs street crossing, automatic trigger pedestrian crossing traffic signal lamp effectively reduces the delay of pedestrian's street crossing, and pedestrian is free of a burden, protects
Traffic safety when card is current.
Optionally, video information harvester 1 includes night vision cam, can guarantee that the application is implemented using night vision cam
Example provide pedestrian crossing traffic signal lamp control system night equally can normal acquisition pedestrian's street crossing video information, ensure
System all weather operations, moment ensure the safety of pedestrian's street crossing, reduce street crossing delay.
Optionally, the video information that video information harvester 1 acquires passes to microcontroller 2 by USB interface, uses
The USB interface of technology maturation is transmitted into row information, both can guarantee the quick transmission of video information, while can ensure video information
The problems such as stability of transmission is not in interim card, lost content.
Optionally, microcontroller 2 includes the Raspberry Pi of two generation Type Bs or more model, the raspberry of two generation Type Bs or more model
It sends microcontroller that there is powerful video information process ability and operational capability, external data can be received by USB interface, it can be real
Now the large capacities such as video information information is quickly handled, ensures pedestrian crossing traffic signal lamp provided by the embodiments of the present application
Control system quickly, stable operation.
Optionally, relay 3 includes direct current 5V relays or direct current 3.3V relays, due to 2 output signal of microcontroller
Mostly 5V or 3.3V level signals, relay 3 select direct current 5V relays or direct current 3.3V relays, it is ensured that microcontroller 2
The control signal of output can the reliable action of trigger relay 3.
Optionally, calculation processing center of the microcontroller 2 as entire control system, using independent microcontroller power supply
Power supply, and be encapsulated in waterproof case 5, ensure the reliability that will not be influenced and reduce system operation by sleety weather.
Optionally, signal lamp trigger switch 4 includes a pair of of normally opened contact and a pair of of normally-closed contact, a pair of of normally opened contact concatenation
In green traffic lamp electric power loop, a pair of of normally-closed contact is serially connected in red traffic light electric power loop, preset areas
When waiting for street crossing without pedestrian in domain, microcontroller 2 exports low level, and the coil of relay 3 is not charged, signal lamp trigger switch 4
Normally-closed contact be closed, the electric power loop of red traffic light is closed, and red eye is lighted, and prevents pedestrian from abruptly entering road
Mouthful, normally opened contact disconnects, and greensignal light is not lit；When pedestrian waits for and crossing the street, microcontroller 2 exports predeterminable area memory
High level, the coil of relay 3 obtain electric, and the normally-closed contact of control signal lamp trigger switch 4 disconnects, and red eye extinguishes, together
When, the normally opened contact of signal lamp trigger switch 4 is closed, and the electric power loop of green traffic lamp is closed, and greensignal light is lighted,
Pedestrian can cross the street safely.
Fig. 2 is the application scenario diagram of pedestrian crossing traffic signal lamp control system provided by the embodiments of the present application, is tied below
Fig. 1 and Fig. 2 is closed, the preferred embodiment application of pedestrian crossing traffic signal lamp control system provided by the embodiments of the present application is carried out
Briefly introduce.
Night vision cam with USB data transfer interface is fixedly installed in the traffic lights branch for being erected at traffic intersection
On frame, relay, Raspberry Pi microcontroller, signal lamp trigger switch are installed concentratedly in being arranged on traffic signal lamp support
In waterproof case 5, and Raspberry Pi is powered using independent power supply.
Night vision cam acquires the pedestrian's street crossing video information in predeterminable area, and the video information of pedestrian's street crossing is transmitted
To coupled Raspberry Pi.Raspberry Pi whether there is pedestrian after obtaining pedestrian's street crossing video information in judgement predeterminable area,
If it is determined that predeterminable area memory is in pedestrian, and when the stand-by period of pedestrian is more than 3 seconds, then pedestrian is judged there are street crossing demand,
Unmanned waiting or waiting time are less than 3 seconds in predeterminable area, then street crossing demand is not present in judgement.
Signal lamp trigger switch includes a pair of of normally opened contact and a pair of of normally-closed contact, and a pair of of normally opened contact is serially connected with green friendship
In ventilating signal lamp electric power loop, a pair of of normally-closed contact is serially connected in red traffic light electric power loop, without row in predeterminable area
When people waits for street crossing, Raspberry Pi exports low level, and the coil of relay is not charged, and the normally-closed contact of signal lamp trigger switch closes
It closes, the electric power loop of red traffic light is closed, and red eye is lighted, and passerby is reminded to pay attention to traffic intersection and prevent pedestrian
Crossing is abruptly entered, normally opened contact disconnects, and greensignal light is not lit.
For predeterminable area memory when pedestrian waits for and crossing the street, Raspberry Pi exports high level, and the coil of relay obtains electric, control letter
The normally-closed contact of signal lamp trigger switch disconnects, and red eye extinguishes, meanwhile, the normally opened contact of signal lamp trigger switch is closed,
The electric power loop of green traffic lamp is closed, and greensignal light is lighted, and pedestrian can cross the street safely.
Automatic trigger pedestrian's mistake can be realized using pedestrian crossing traffic signal lamp control system provided by the embodiments of the present application
Street traffic lights effectively reduce the delay of pedestrian's street crossing, and pedestrian is free of a burden, traffic safety when ensureing current.
It should be noted that each embodiment in this specification is described in a progressive manner, each embodiment weight
Point explanation is all difference from other examples, and the same or similar parts between the embodiments can be referred to each other.
For device class embodiment, since it is basically similar to the method embodiment, so fairly simple, the related place ginseng of description
See the part explanation of embodiment of the method.
The foregoing description of the disclosed embodiments enables those skilled in the art to realize or use the utility model.
Various modifications to these embodiments will be apparent for a person skilled in the art, general original as defined herein
Reason can be realized in other embodiments without departing from the spirit or scope of the present utility model.Therefore, this practicality is new
Type is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase
Consistent widest range.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (9)
1. a kind of pedestrian crossing traffic signal lamp control system, which is characterized in that including：Video information harvester, microcontroller
Device, relay and signal lamp trigger switch, wherein
The video information harvester is connected with the microcontroller, and video information is transmitted to the microcontroller；
The microcontroller is connected with the relay, controls the working condition of the relay；
The relay is electrically connected with the signal lamp trigger switch, controls the working condition of the signal lamp trigger switch；
The signal lamp trigger switch is serially connected in traffic lights electric power loop, controls the working condition of traffic lights.
2. pedestrian crossing traffic signal lamp control system according to claim 1, which is characterized in that the video information is adopted
Acquisition means include night vision cam.
3. pedestrian crossing traffic signal lamp control system according to claim 1, which is characterized in that the video information is adopted
Acquisition means are connected by USB interface with the microcontroller.
4. pedestrian crossing traffic signal lamp control system according to claim 1, which is characterized in that the microcontroller packet
Include Raspberry Pi.
5. pedestrian crossing traffic signal lamp control system according to claim 4, which is characterized in that the Raspberry Pi is two
For the Raspberry Pi of Type B or more model.
6. pedestrian crossing traffic signal lamp control system according to claim 1, which is characterized in that the relay includes
Direct current 5V relays or direct current 3.3V relays.
7. according to the pedestrian crossing traffic signal lamp control system described in claim 1-6 any one, which is characterized in that described
Signal lamp trigger switch includes a pair of of normally opened contact and a pair of of normally-closed contact, wherein
The normally opened contact is serially connected in green traffic lamp electric power loop；
The normally-closed contact is serially connected in red traffic light electric power loop.
8. pedestrian crossing traffic signal lamp control system according to claim 1, which is characterized in that further include outside waterproof
Shell, for encapsulating the microcontroller.
9. according to any one of claim 1-6 or according to any one of claims 8 pedestrian crossing traffic signal lamp control systems, feature
It is, further includes microcontroller power supply, electric energy is provided for the microcontroller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721566673.9U CN208044855U (en) | 2017-11-20 | 2017-11-20 | A kind of pedestrian crossing traffic signal lamp control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721566673.9U CN208044855U (en) | 2017-11-20 | 2017-11-20 | A kind of pedestrian crossing traffic signal lamp control system |
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| CN208044855U true CN208044855U (en) | 2018-11-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110610612A (en) * | 2019-10-24 | 2019-12-24 | 河北工业大学 | Intelligent traffic signal control system based on raspberry group and internet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110610612A (en) * | 2019-10-24 | 2019-12-24 | 河北工业大学 | Intelligent traffic signal control system based on raspberry group and internet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191024 Address after: 519080 Tsinghua Science Park, 101 Tangjiawan University Road, Zhuhai High-tech Zone, Guangdong Province, 3 buildings 203 Patentee after: Research Center of innovation, Tsinghua University, Zhuhai, Shenzhen Address before: 519000 Unit A0209, Building A, Tsinghua Science and Technology Park (Zhuhai) Pioneering Building, 101 University Road, Tangjiawan Town, Zhuhai High-tech Zone, Guangdong Province Patentee before: Zhuhai Huada Smart Technology Co., Ltd. |
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| TR01 | Transfer of patent right |