CN206961329U - A kind of pedestrian's street crossing intelligent traffic lamp - Google Patents
A kind of pedestrian's street crossing intelligent traffic lamp Download PDFInfo
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- CN206961329U CN206961329U CN201720846855.5U CN201720846855U CN206961329U CN 206961329 U CN206961329 U CN 206961329U CN 201720846855 U CN201720846855 U CN 201720846855U CN 206961329 U CN206961329 U CN 206961329U
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- pedestrian
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- street crossing
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Abstract
The utility model belongs to urban traffic signal control technology field, and in particular to a kind of pedestrian's street crossing intelligent traffic lamp.The utility model proposes a kind of pedestrian's street crossing intelligent traffic lamp to be mainly made up of functional units such as detection unit, communication unit, main control unit, reminding unit, memory cell, power subsystems, the intelligent traffic lamp passes through the real-time detection to street pedestrian, with reference to the signal timing dial situation of intersection, for pedestrian's real-time optimization pedestrian's street crossing signal and pass through verbal cue and warn pedestrian's street crossing, wait pedestrian crossing signal lamp's time course to cause to be impatient of, make a dash across the red light phenomenon so as to reduce pedestrian, improve the security of pedestrian's street crossing.
Description
Technical field
The utility model belongs to urban traffic signal control technology field, and in particular to a kind of pedestrian's street crossing intelligent transportation letter
Signal lamp.
Background technology
To adapt to the high speed development of social economy, China was within significant period of time in past in line with " with Che Weiben " reason
Read, when considering traffic problems mainly from motor vehicle angle, prior-vehicle right-of-way, and ignore pedestrian, non-motor vehicle
Trip interests.When section, which has potential safety hazard, to set up crossing facilities, Road Traffic Design personnel, which often select to apply, draws people
Row zebra crossing, but the traffic signal timing based on " motor vehicle is preferential " principle often results in pedestrian and waited as long for so as to be lined up delay.
Exceed pedestrian's patience time when fixing timing, the situation that pedestrian collective forces to jaywalk will occur, cause traffic environment to be disliked
Change, congestion occurs in section, makes the wagon flow of car lane is current to produce delay for a long time and negative effect, easily causes serious people
Member and property loss.
For pedestrian crossing traffic problem, a kind of " push button " pedestrian crossing signal lamps, its work are proposed both at home and abroad
It is that pedestrian can realize pedestrian's street crossing by button press changing the crossing timing time to a certain degree as principle.But due to China
Pedestrian's flow is big, frequent button press, wayleave distribution unordered, chaotic phenomenon is occurred, causes road
Efficiency is low, while also reduces the service life of equipment.
The content of the invention
The utility model proposes a kind of pedestrian's street crossing intelligent traffic lamp, mainly by detection unit, communication unit, master
The functional units such as unit, reminding unit, memory cell, power subsystem composition is controlled, as shown in Figure 1, Figure 2, Figure 3, Figure 4.The intelligence
Traffic lights are pedestrian's real-time optimization row with reference to the signal timing dial situation of intersection by the real-time detection to street pedestrian
People crosses the street signal and by verbal cue and warning pedestrian's street crossing, and pedestrian crossing signal lamp's time mistake is waited so as to reduce pedestrian
Cheng Zaocheng is impatient of, phenomenon of making a dash across the red light, and improves the security of pedestrian's street crossing.
The utility model proposes a kind of pedestrian's street crossing intelligent traffic lamp, its technical solution be the intelligence hand over
Ventilating signal lamp is arranged on the outside of the curb of pedestrian's street crossing lateral road, and the quantity and row of detection zone one skilled in the art are obtained by detection unit
People's height；The pedestrian's data detected by memory cell real-time storage detection unit；By communication unit with installed in to
Pedestrian's street crossing intelligent traffic lamp carries out information exchange；The pedestrian's data detected are divided in real time by main control unit
Analysis, optimize pedestrian's street crossing signal time distributing conception, and pedestrian's street crossing scheme is handed down to reminding unit；Pass through reminding unit presenting bank
People crosses the street safely；By power subsystem voltage-stabilized power supply is provided for each functional module of intelligent traffic lamp.
The utility model proposes a kind of pedestrian's street crossing intelligent traffic lamp, its feature mainly includes：
1) detection unit
Detection unit is embedded with the ultrasound transmitter device array group and ultrasonic receiver array of cellular hexagonal arrangement
Group, it is attached by motherboard bus and main control unit, measurement two ways transmitting 60kHz ultrasound is measured, divided with timesharing
Ripple, ultrasonic receiver determine whether that pedestrian is present, and pedestrian information is passed through into master control list according to the time for receiving back wave
The motherboard bus of member sends memory cell and main control unit to.
2) memory cell
Memory cell is embedded with pluggable Micro SD cards memory module, and low profile edge database is housed in memory module,
It is attached by motherboard bus and main control unit, for storing real-time pedestrian's related data of detection unit detection and current
The geometric properties data of pedestrian's street crossing lateral road, pedestrian's street crossing historical data, the operation of pedestrian's street crossing intelligent traffic lamp software and hardware
Log information.
3) communication unit
Communication unit is embedded with 3G wireless communication modules, is attached by motherboard bus and main control unit, 3G radio communications
Module carries out pedestrian's street crossing detection information and pedestrian's street crossing letter with being communicated to connect to being established to pedestrian's street crossing intelligent traffic lamp
Number scheme it is shared.
4) main control unit
Main control unit passes through mother embedded with PLC, motherboard bus, PCB backboards, main control unit with other each functional units
Plate bus is attached, and obtains the information in detection unit, communication unit, memory cell；PLC controllers are according to the letter of acquisition
Breath, timing is optimized to pedestrian's street crossing signal.
5) reminding unit
Reminding unit is embedded with LED display board and voice announcer, is attached by motherboard bus and main control unit, reminds
The timing scheme that unit sends over according to main control unit, pedestrian's street crossing signal is shown by LED display board, while pass through voice
Report is reminded and warned.
6) power subsystem
Power subsystem is made up of solar cell module module, is connected by PCB backboards with main control unit, wherein solar energy
Battery component module is made up of small battery, charge controller, solar panel.
Brief description of the drawings
Fig. 1：Pedestrian's street crossing intelligent traffic lamp functional unit composition figure；
Fig. 2：Pedestrian's street crossing intelligent traffic lamp surface structure left view；
Fig. 3：Pedestrian's street crossing intelligent traffic lamp surface structure front view；
Fig. 4：Pedestrian's street crossing intelligent traffic lamp surface structure top view；
Fig. 5：Pedestrian's street crossing intelligent traffic lamp ultrasonic sensor distribution map.
Embodiment
The utility model proposes a kind of pedestrian's street crossing intelligent traffic lamp, its workflow are as follows：
1) detection unit
Detection unit is embedded with the ultrasound transmitter device array group and ultrasonic receiver array of cellular hexagonal arrangement
Group, as shown in figure 5, the center installation ultrasound transmitter device and ultrasonic receiver of hexagonal area, and two ultrasonic waves are sent
Spacing between device between two ultrasonic receivers is 200-400mm.Select the less supersonic sensing of dispersion angle
Device, when sensor distance ground is higher, more need to widen the distance between sensor.Each hexagon is carried out according to arrangement
Numbering, according to position No., array of ultrasonic sensors is divided into 4 groups：Odd-numbered line odd column group, even number line even column group, odd number
Row even column group, even number line odd column group, particular row Pedestrian flow detection step are as follows：
Step1：Assuming that the distance of ultrasonic sensor from the ground is H0, it is anti-through ground that ultrasonic transmitter launches ultrasonic wave
Penetrate, the time undergone to ultrasonic receiver reception is T0, the aerial spread speed of ultrasonic wave is V, then：
H0=V*T0/2
Step2：Ultrasonic transmitter launches ultrasonic signal with certain frequency, and ultrasonic receiver receives ultrasonic wave letter
Number time be T1、T2、……、Tn, ultrasonic wave transmitting range is respectively H1、Hn、……、Hn；
Step3：According to H0-HnThe size of (n=1,2 ... ...), then can determine whether ultrasonic sensor issue whether someone, will
The number that array of ultrasonic sensors detects adds up and is multiplied by regulation coefficient ε, and the pedestrian for obtaining current ultrasonic detection zone is total
Number M；
Step4：Detection unit sends pedestrian's aggregate data to memory cell and master by the motherboard bus of main control unit
Control unit.
2) memory cell
Memory cell is embedded with pluggable Micro SD cards memory module, and low profile edge database is housed in memory module,
For recording and storing the real-time pedestrian's data, the geometric properties data of current pedestrian's street crossing lateral road, pedestrian of detection unit detection
Cross the street historical data, pedestrian's street crossing intelligent traffic lamp software and hardware running log information.
3) communication unit
3G wireless communication modules in communication unit are realized and to establishing communication link to pedestrian's street crossing intelligent traffic lamp
Connect, carry out information inquiry and information extraction between traffic lights, specific works step is as follows：
Step1：3G wireless communication modules in communication unit are at a certain time interval by pedestrian's flow in memory cell
Detection data with to pedestrian's street crossing intelligent traffic lamp carry out information sharing；
Step2：3G wireless communication modules in communication unit are before signaling plan implementation, and to pedestrian's street crossing intelligence
The signal time distributing conception of traffic lights carries out, than choosing, selecting optimal signal time distributing conception.
4) main control unit
Main control unit is embedded with PLC and motherboard bus, and main control unit passes through motherboard bus with other each functional units
It is attached, obtains the information in detection unit, communication unit, memory cell；PLC is according to the information of acquisition, to row
People crosses the street signal and optimizes timing, and specific works step is as follows：
Step 1：What the detection unit on pavement was covered where the intelligent signal lamp is inputted in PLC stops
The length L in areaWAnd width DW, crossing where signal lamp apart from stream signal lamp distance LSWith pavement length L, standard vehicle commander
LCEtc. the vehicle arriving rate a between relevant physical parameter and two crossings, the area S of detection zone is calculated；
S=LW×DW
Step 2：When signal lamp initializes, its maximum green time G is setmaxWith minimum green time Gmin,
Gmax=max { Gmax1,Gmax2}
Gmax1、Gmax2The maximum pedestrians crossing time being respectively calculated by section distance, pedestrian's leg speed；Meanwhile OK
People crosses the street the minimum timing of traffic lights green light and is not less than minimum green time Gmin, and when timing scheme reaches maximum green light
Between force stopping be converted into red light, to ensure the unimpeded of trunk car lane；
Step 3：The physics that PLC is obtained the crowd's quantity M detected by motherboard bus and inputted before work is joined
Number, area's area of being stopped to single pedestrian carry out grade classification, partitioning standards formula：
Single pedestrian stops area's grade classification table
| Grade A | w≥1.21 |
| Grade B | 0.93≤w<1.21 |
| Grade C | 0.65≤w<0.93 |
| Grade D | 0.28≤w<0.65 |
| Grade E | 0.19≤w<0.28 |
| Grade F | w<0.19 |
Step4：After PLC carries out divided rank to the number detected, examined at the end of a detection cycle C0
Survey result and be divided into grade E, F, then follow the timing scheme of main signal light；Testing result divides at the end of a detection cycle
For grade A, then continue to detect, without timing；Testing result is divided into grade B, C, D or continuous three at the end of a cycle
When individual testing result is divided into grade A, use signal timing dial formula for：
Wherein：G1For the pedestrian's street crossing green light signals duration on the basis of leg speed；
Step5：The ratio shared by with two crowd's quantity M1 and M2 of the division of benchmark height is calculated respectively, i.e.,：
Wherein：M1 is pedestrian's number that pedestrian's height is more than HS；M2 is pedestrian's number that pedestrian's height is less than or equal to HS；
e1、e2Respectively pedestrian's height is more than HS and the ratio less than or equal to HS；
Step6：The data of acquisition are subjected to timing, using formula：
Step7：The timing scheme of calculating is obtained G by PCL controllers1、G2Green time average, be designated as this time it is green
The lamp time：
Ga=average { G1,G2}
Wherein：GaFor the final signal long green light time of pedestrian's street crossing；
Work as G1Or G2In have one or be all maximum green time, then：
Ga=Gmax
Step8：By communication unit with to carrying out information exchange to pedestrian's street crossing intelligent traffic lamp, obtaining to row
People crosses the street final signal long green light time G ' in the timing scheme that intelligent traffic lamp calculatesa, both average value is taken, i.e.,：
G=average { Ga,G′a}
Work as GaOr G 'aIn one or be all maximum green time, then
G=Gmax
Wherein：G is the execution pedestrian's street crossing long green light time of place pedestrian's street crossing lateral road.
5) reminding unit
Display unit is made up of LED display and voice announcer, and wherein LED display controls according to main control unit PLC
The timing information that device sends over, current prompting is carried out to pedestrian and is shown as green light or blue flash；Voice announcer is carried using voice
Show.After reminding unit receives timing scheme, timing signal is subjected to signal by LED display and shown.When LED display shows
When being shown as green light, pedestrian's P Passable, while voice message " be this moment green light, please quickly through "；When being shown as blue flash, arrive
Up to the pedestrian in area of stopping, no through traffic, waits next green light to open, and has walked pedestrian on pavement quickly through voice carries
It is shown as the caution sound of " too beep "；When being shown as red light, no through traffic by pedestrian, voice message for " be this moment red light, Hang Renjin
Only pass through ".
6) power subsystem
Power subsystem, will using solar cell module module for the purpose of energy-conserving and environment-protective and making full use of for equipment
Solar energy changes into dc source by compositions such as small battery, charge controller, solar cell modules, is pedestrian's street crossing
Each functional unit in intelligent traffic lamp is powered.
Claims (1)
1. a kind of pedestrian's street crossing intelligent traffic lamp, it is characterised in that by detection unit, communication unit, main control unit, prompting
Unit, memory cell, power subsystem composition, wherein detection unit are embedded with the ultrasound transmitter device battle array of cellular hexagonal arrangement
Row group and ultrasonic receiver array group, are attached by motherboard bus and main control unit；Memory cell is embedded with pluggable
Micro SD card memory modules, low profile edge database is housed in memory module, passes through motherboard bus and carried out with main control unit
Connection；Communication unit is embedded with 3G wireless communication modules, is attached by motherboard bus and main control unit；Main control unit is embedded with
PLC, motherboard bus, PCB backboards, main control unit are attached with other each functional units by motherboard bus；Remind
Unit is embedded with LED display board and voice announcer, is attached by motherboard bus and main control unit；Power subsystem is by solar energy
Battery component module forms, and is connected by PCB backboards with main control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201720846855.5U CN206961329U (en) | 2017-07-13 | 2017-07-13 | A kind of pedestrian's street crossing intelligent traffic lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720846855.5U CN206961329U (en) | 2017-07-13 | 2017-07-13 | A kind of pedestrian's street crossing intelligent traffic lamp |
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| Publication Number | Publication Date |
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| CN206961329U true CN206961329U (en) | 2018-02-02 |
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| CN201720846855.5U Expired - Fee Related CN206961329U (en) | 2017-07-13 | 2017-07-13 | A kind of pedestrian's street crossing intelligent traffic lamp |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108629968A (en) * | 2018-06-26 | 2018-10-09 | 吉林大学 | A kind of pedestrian's street crossing safety control based on laser radar |
| CN108806239A (en) * | 2018-06-15 | 2018-11-13 | 公安部交通管理科学研究所 | The pedestrian's street crossing control system and method coordinated based on upstream and downstream signalized intersections |
| CN109686080A (en) * | 2019-01-18 | 2019-04-26 | 黄传明 | A kind of signal control method and control system of pedestrian detection |
-
2017
- 2017-07-13 CN CN201720846855.5U patent/CN206961329U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806239A (en) * | 2018-06-15 | 2018-11-13 | 公安部交通管理科学研究所 | The pedestrian's street crossing control system and method coordinated based on upstream and downstream signalized intersections |
| CN108806239B (en) * | 2018-06-15 | 2020-12-08 | 公安部交通管理科学研究所 | Pedestrian crossing control system and method based on upstream and downstream signalized intersection coordination |
| CN108629968A (en) * | 2018-06-26 | 2018-10-09 | 吉林大学 | A kind of pedestrian's street crossing safety control based on laser radar |
| CN108629968B (en) * | 2018-06-26 | 2023-10-17 | 吉林大学 | Pedestrian crossing safety control device based on laser radar |
| CN109686080A (en) * | 2019-01-18 | 2019-04-26 | 黄传明 | A kind of signal control method and control system of pedestrian detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180202 Termination date: 20180713 |