CN107633696A - A kind of system of Contrast tuned imaging traffic lights - Google Patents
A kind of system of Contrast tuned imaging traffic lights Download PDFInfo
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- CN107633696A CN107633696A CN201710837934.4A CN201710837934A CN107633696A CN 107633696 A CN107633696 A CN 107633696A CN 201710837934 A CN201710837934 A CN 201710837934A CN 107633696 A CN107633696 A CN 107633696A
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- lamp
- status monitoring
- drive circuit
- lamp bead
- monitoring circuit
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Abstract
The invention discloses a kind of system of Contrast tuned imaging traffic lights,Including sensor module,Drive circuit and lamp bead status monitoring circuit,Drive circuit and signal lamp lamp bead status monitoring circuit,Signal light path local controller and master system,The sensor module includes red light sensor module,Green light sensor module and amber light sensor module,Drive circuit and lamp bead status monitoring circuit include red light drive circuit and lamp bead status monitoring circuit,Amber light drive circuit and lamp bead status monitoring circuit and green light drive circuit and lamp bead status monitoring circuit,The present invention can reflect belisha beacon state in real time,Have at fingertips for crossing road traffic signal lamp running status,When road traffic signal lamp has it is abnormal when,Reflected by background system alarm,Greatly reduce the abnormal work situation of crossing road traffic signal lamp.
Description
Technical field
The present invention relates to a kind of signal lamp control system, specifically a kind of system of Contrast tuned imaging traffic lights.
Background technology
Traffic lights are the signal lamps for commanding traffic circulation, are typically made up of red light, green light, amber light.Red light represents to prohibit
Only pass through, green light represents to permit current, amber light expression warning.Setting up for traffic lights greatly reduces urban transportation appearance
The probability of accident.
But there is following defect in existing traffic lights：Background maintenance personnel are for ordinary road traffic lights
Working condition is unknown, it is necessary to can learn signal lamp running status by regularly inspection.When signal lamp breaks down,
As signal lamp does not work, or due to line influence signal lamp Chang Liang, waiting influences the default working condition of road traffic signal lamp, this
Sample will strong influence traffic safety.
The content of the invention
It is an object of the invention to provide a kind of system of Contrast tuned imaging traffic lights, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the present invention provides following technical scheme：
A kind of system of Contrast tuned imaging traffic lights, including sensor module, drive circuit and lamp bead status monitoring electricity
Road, drive circuit and signal lamp lamp bead status monitoring circuit, signal light path local controller and master system, the sensing
Device module includes red light sensor module, green light sensor module and amber light sensor module, drive circuit and lamp bead state prison
Slowdown monitoring circuit includes red light drive circuit and lamp bead status monitoring circuit, amber light drive circuit and lamp bead status monitoring circuit and green light
Drive circuit and lamp bead status monitoring circuit, the signal light path local controller connect signal lamp lamp bead status monitoring respectively
Circuit and master system, signal lamp lamp bead status monitoring circuit are also respectively connected with red light drive circuit and lamp bead status monitoring electricity
Road, amber light drive circuit and lamp bead status monitoring circuit and green light drive circuit and lamp bead status monitoring circuit, the red light drive
Dynamic circuit and lamp bead status monitoring circuit are also connected with red light sensor module, and green light drive circuit and lamp bead status monitoring circuit are also
Green light sensor module is connected, amber light drive circuit and lamp bead status monitoring circuit are also connected with amber light sensor module.
Preferred scheme as the present invention：The red light sensor module includes traffic light system part and signal lamp drives
Detection part, signal lamp driving detection part connection traffic light system part, wherein signal lamp driving detection part select DM13H
Chip, traffic light system part are LED string, the red light sensor module, green light sensor module and amber light sensor die
Group structure is identical.
Preferred scheme as the present invention：Red light drive circuit and lamp bead the status monitoring circuit include power pack,
Main control chip and communication part, communication part are also connected with power pack, and the main control chip connects power pack and communication respectively
Part, the model STC15F2KXXS2_28 of the main control chip, communication part use 65LBC184 chips, red light driving electricity
Road and lamp bead status monitoring circuit, green light drive circuit and lamp bead status monitoring circuit and amber light drive circuit and lamp bead state prison
Slowdown monitoring circuit structure is identical.
Preferred scheme as the present invention：The road traffic signal lamp state acquisition module includes power pack, master control
IC, lamp panel communication module, local controller communication module and status indicator lamp, power pack are used to communicate to master control IC, lamp panel
Module, local controller communication module and status indicator lamp power supply, master control IC are also respectively connected with status indicator lamp, lamp panel communication mould
Block and local controller communication module, master control IC use STC15F2K1652_20 type single-chip microcomputers, and power pack uses LM1117 tri-
Voltage stabilizing chip, output voltage 3.3V are held, lamp panel communication module uses SN65LBC184 chips, and local controller communication module uses
ZM516X-27 chips, status indicator lamp are LED.
Preferred scheme as the present invention：The signal light path local controller includes power pack, signal light path
Local controller IC, signal lamp acquisition module communications portion and network communication module, the signal light path local controller point
Not Lian Jie power pack, signal lamp acquisition module communications portion and network communication module, the signal light path local controller
IC selects STC15W4KXXS4_32 type single-chip microcomputers, and power pack uses K7805M three terminal regulators, the communication of signal lamp acquisition module
Part uses ZM516X chips, and network communication module uses HS-ENG091.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention can reflect belisha beacon state in real time, for
Crossing road traffic signal lamp running status is had at fingertips, when road traffic signal lamp has it is abnormal when, pass through background system
Alarm reflects, and greatly reduces the abnormal work situation of crossing road traffic signal lamp.
Brief description of the drawings
Fig. 1 is the overall block diagram of the present invention.
Fig. 2 is the physical circuit figure of red light sensor module.
Fig. 3 is the physical circuit figure of drive circuit and lamp bead status monitoring circuit.
Fig. 4 is the structured flowchart of drive circuit and signal lamp lamp bead status monitoring circuit.
Fig. 5 is the physical circuit figure of signal light path local controller.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Refer to Fig. 1-5, in the embodiment of the present invention, a kind of system of Contrast tuned imaging traffic lights, including sensing
Device module, drive circuit and lamp bead status monitoring circuit, drive circuit and signal lamp lamp bead status monitoring circuit, signal light path
Local controller and master system, the sensor module include red light sensor module, green light sensor module and amber light
Sensor module, drive circuit and lamp bead status monitoring circuit include red light drive circuit and lamp bead status monitoring circuit, amber light
Drive circuit and lamp bead status monitoring circuit and green light drive circuit and lamp bead status monitoring circuit, the signal light path crossing
Controller connects signal lamp lamp bead status monitoring circuit and master system respectively, and signal lamp lamp bead status monitoring circuit is also distinguished
Connect red light drive circuit and lamp bead status monitoring circuit, amber light drive circuit and lamp bead status monitoring circuit and green light driving electricity
Road and lamp bead status monitoring circuit, the red light drive circuit and lamp bead status monitoring circuit are also connected with red light sensor module,
Green light drive circuit and lamp bead status monitoring circuit are also connected with green light sensor module, amber light drive circuit and lamp bead status monitoring
Circuit is also connected with amber light sensor module.
Red light sensor module includes traffic light system part and signal lamp driving detection part, signal lamp driving test section
Divide connection traffic light system part, wherein signal lamp driving detection part selects DM13H chips, and traffic light system part is LED
Lamp string, the red light sensor module, green light sensor module are identical with amber light sensor module structure.
Red light drive circuit and lamp bead status monitoring circuit include power pack, main control chip and communication part, communication section
Divide and be also connected with power pack, the main control chip connects power pack and communication part, the model of the main control chip respectively
STC15F2KXXS2_28, communication part use 65LBC184 chips, red light drive circuit and lamp bead status monitoring circuit, green light
Drive circuit and lamp bead status monitoring circuit and amber light drive circuit are identical with lamp bead status monitoring circuit structure.
Road traffic signal lamp state acquisition module includes power pack, master control IC, lamp panel communication module, local controller
Communication module and status indicator lamp, power pack are used for master control IC, lamp panel communication module, local controller communication module and shape
State indicator lamp is powered, and master control IC is also respectively connected with status indicator lamp, lamp panel communication module and local controller communication module, master control
IC uses STC15F2K1652_20 type single-chip microcomputers, and power pack uses LM1117 three-terminal voltage-stabilizing chips, output voltage 3.3V, lamp
Disk communication module uses SN65LBC184 chips, and local controller communication module uses ZM516X-27 chips, and status indicator lamp is
LED.
Signal light path local controller includes power pack, signal light path local controller IC, signal lamp collection mould
Block communications portion and network communication module, the signal light path local controller connect power pack, signal lamp collection respectively
Module communications portion and network communication module, the signal light path local controller IC select STC15W4KXXS4_32 type lists
Piece machine, power pack use K7805M three terminal regulators, and signal lamp acquisition module communications portion uses ZM516X chips, and network leads to
Letter module uses HS-ENG091.
One signal light path local controller can connect most 32 drive circuits and signal lamp lamp bead status monitoring electricity
Road, a master system can access multiple signal light path local controllers.
The present invention operation principle be：The design includes：
1. sensor module, it can be in real time that intensity of illumination is transformed into digital quantity electric signal size physical quantity, adjust automatically
Face in the state of light, at crossing signal light path can according to the real-time intensity of illumination in crossing by belisha beacon brightness adjustment,
The purpose of to reach energy-conservation and suppress glare, physical circuit is as shown in Figure 2.
2. drive circuit and signal lamp lamp bead status monitoring circuit,
The drive circuit of this product is to be based on 16 constant-current LED driving chips of DM13 types, and it has error detection function.
, as a result can be defeated by alarm signal output terminals A LARM or serial when DM13 is operated in real-time open circuit/short circuit sense mode
Go out data（DAO）Obtain.When there is electric current to flow through output channel, and the passage output voltage is less than 0.2V, then judges that LED is opened
Road, i.e. LED failure.After starting short circuit detecting, if output channel has electric current to flow through, but the passage output voltage is higher than 2/3VCC
When, then judge LED short circuits.
Road traffic signal lamp overall output electric current is finely adjusted by master control IC data-signals, so as to obtain preferably
Homogeneity, physical circuit are as shown in Figure 3.
3. road traffic signal lamp state acquisition module, there is a signal lamp work collection mould every group of signal lamp the inside
Block, for gathering the working condition of each signal lamp, using serial communication mode, use 9600 baud rates.200ms is gathered once
Signal lamp working condition, when there is the working condition of local controller inquiry signal lamp, road traffic signal lamp state acquisition mould
Block, signal lamp working condition is returned into local controller.When there is the brightness value that local controller sets signal light path, road
Brightness value is sent to each single signal lamp lamp panel by road traffic signal light condition acquisition module, and signal lamp lamp panel receives tune
It is as shown in Figure 4 according to the brightness regulation brightness of instruction, physical circuit when saving the instruction of brightness.
4. signal light path local controller；
Signal light path local controller, it is the bridge for connecting master system and road traffic signal lamp.Master system is believed
Number signal light path local controller is sent to by network, after signal light path local controller receives instruction, passes through nothing
Wire module is sent to each signal lamp, and wireless module is the ZM516X series using Guangzhou Zhiyuan Electronics Co., Ltd.
Zigbee wireless modules, changing module has the features such as high-performance, low work(, uses 2.4-2.5G frequency range application integration schemes, the nothing
Wire module theoretical transmission distance is 2km or so, is gone for completely whole to crossing radio communication system, physical circuit such as Fig. 5
It is shown.
5. wireless transport module,
Because signal light path local controller and road traffic signal lamp state acquisition module wireless module transmit, if there is
Two road traffic signal lamp state acquisition modules send instruction simultaneously, and radio channel data will be occupied, causes data to pass
Input mistake by mistake, solution method is to use signal light path local controller active inquiry road traffic signal lamp state acquisition module shape
State, ensure only have a module that the ID of signal lamp is recorded and preserved according to position in inquiry data in synchronization, it would be desirable to
Inquiry signal location 1, when receiving the signal lamp position by receiving position 1, contrast poll bit and received bit to judge to be
It is no to have switch data, the data of switch are carried out second and inquired about, to reduce packet loss, still exists after the second inquiry and loses
When bag, by data statistics, because the signal lamp at crossing is not in unexpected saltus step, direction Last status is read
Light color state, and other directional signal light states, calculate packet loss signal lamp state.Lost when continuous more than 3S occurs in signal lamp
Do not processed when bag.Signal lamp packet loss is about 8% or so when untreated, and data packetloss rate is 0.2% after processing data.
The length of road traffic signal lamp state acquisition module is 14 bytes, and it is left in 1.5ms to be transmitted a frame data
The right side, all when road signal lamp intersection controller sends whole crossing querying command, road traffic signal lamp state acquisition mould
Block sends according to lamp ID number, automatic time delay 6ms or so and avoids data collision, causes to transmit data failure because signal lamp is in point
There are 100ms or so differences when bright, when signal lamp is changed into green light, signal lamp acquisition module data send a frame synchronization and referred to
Make and give signal light path local controller, delay 100ms or so after controller receives this instruction, avoid data due to
The signal that signal lamp difference does not change light color is being inquired about, and is thus that can avoid the nonsynchronous phenomenon of signal lamp.
6. master system,
Master system is a personal-machine interactive system, can be in terms of the brightness of setting signal lamp and falling by master system personnel
Working method, and check the state of signal lamp.
Claims (5)
1. a kind of system of Contrast tuned imaging traffic lights, including sensor module, drive circuit and lamp bead status monitoring
Circuit, drive circuit and signal lamp lamp bead status monitoring circuit, signal light path local controller and master system, its feature
It is, the sensor module includes red light sensor module, green light sensor module and amber light sensor module, drive circuit
Include red light drive circuit and lamp bead status monitoring circuit, amber light drive circuit and lamp bead state prison with lamp bead status monitoring circuit
Slowdown monitoring circuit and green light drive circuit and lamp bead status monitoring circuit, the signal light path local controller connect signal lamp respectively
Lamp bead status monitoring circuit and master system, signal lamp lamp bead status monitoring circuit are also respectively connected with red light drive circuit and lamp
Pearl state observation circuit, amber light drive circuit and lamp bead status monitoring circuit and green light drive circuit and lamp bead status monitoring electricity
Road, the red light drive circuit and lamp bead status monitoring circuit are also connected with red light sensor module, green light drive circuit and lamp bead
Status monitoring circuit is also connected with green light sensor module, and amber light drive circuit and lamp bead status monitoring circuit are also connected with amber light sensing
Device module.
2. the system of Contrast tuned imaging traffic lights according to claim 1, it is characterised in that the red light sensing
Device module includes traffic light system part and signal lamp driving detection part, signal lamp driving detection part connection traffic light system
Part, wherein signal lamp driving detection part select DM13H chips, and traffic light system part is LED string, the red light sensing
Device module, green light sensor module are identical with amber light sensor module structure.
3. the system of Contrast tuned imaging traffic lights according to claim 1, it is characterised in that the red light driving
Circuit and lamp bead status monitoring circuit include power pack, main control chip and communication part, and communication part is also connected with power pack,
The main control chip connects power pack and communication part respectively, the model STC15F2KXXS2_28 of the main control chip, leads to
News part uses 65LBC184 chips, red light drive circuit and lamp bead status monitoring circuit, green light drive circuit and lamp bead state
Observation circuit and amber light drive circuit are identical with lamp bead status monitoring circuit structure.
4. the system of Contrast tuned imaging traffic lights according to claim 1, it is characterised in that the road traffic
Signal lamp state acquisition module refers to including power pack, master control IC, lamp panel communication module, local controller communication module and state
Show lamp, power pack is used to power to master control IC, lamp panel communication module, local controller communication module and status indicator lamp, main
Control IC is also respectively connected with status indicator lamp, lamp panel communication module and local controller communication module, and master control IC is used
STC15F2K1652_20 type single-chip microcomputers, power pack use LM1117 three-terminal voltage-stabilizing chips, output voltage 3.3V, lamp panel communication
Module uses SN65LBC184 chips, and local controller communication module uses ZM516X-27 chips, and status indicator lamp is LED.
5. the system of Contrast tuned imaging traffic lights according to claim 1, it is characterised in that the roadway sign
Lamp local controller includes power pack, signal light path local controller IC, signal lamp acquisition module communications portion and network
Communication module, the signal light path local controller connect power pack, signal lamp acquisition module communications portion and net respectively
Network communication module, the signal light path local controller IC select STC15W4KXXS4_32 type single-chip microcomputers, and power pack uses
K7805M three terminal regulators, signal lamp acquisition module communications portion use ZM516X chips, and network communication module uses HS-
ENG091。
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| CN201710837934.4A CN107633696A (en) | 2017-09-18 | 2017-09-18 | A kind of system of Contrast tuned imaging traffic lights |
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| CN201710837934.4A CN107633696A (en) | 2017-09-18 | 2017-09-18 | A kind of system of Contrast tuned imaging traffic lights |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345964A (en) * | 2020-10-27 | 2021-02-09 | 歌尔微电子有限公司 | Traffic signal lamp detection device and method |
| CN113112834A (en) * | 2021-04-14 | 2021-07-13 | 广东古田智能科技有限公司 | Traffic light system and lamp bead fault detection method thereof |
| CN113744545A (en) * | 2021-08-26 | 2021-12-03 | 广东华络电子科技有限公司 | Signal control circuit and intelligent traffic signal lamp safety power utilization system with same |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201159943Y (en) * | 2007-12-19 | 2008-12-03 | 中国科学院自动化研究所 | Road traffic signal controller |
| CN101896951A (en) * | 2007-12-03 | 2010-11-24 | 奥尔德里奇交通系统私人有限公司 | An LED driver method for traffic lanterns |
| CN102629419A (en) * | 2012-04-12 | 2012-08-08 | 中国计量学院 | Fault detection device for LED traffic lights |
| CN102890870A (en) * | 2012-10-30 | 2013-01-23 | 重庆交通大学 | Self diagnosis method and device for faults of traffic signal control machine |
| CN202720785U (en) * | 2012-04-12 | 2013-02-06 | 中国计量学院 | Fault detection apparatus for LED traffic lights |
| CN103280117A (en) * | 2013-06-10 | 2013-09-04 | 西安费斯达自动化工程有限公司 | Intelligent fault data-logging and network alarm system of traffic lights |
| CN103688298A (en) * | 2011-07-18 | 2014-03-26 | 李兴洙 | Apparatus and method for controlling traffic signals |
| CN105139675A (en) * | 2015-09-18 | 2015-12-09 | 成都融创智谷科技有限公司 | Urban intelligent traffic command device integrated with monitoring and network feedback units |
| CN205722436U (en) * | 2016-03-14 | 2016-11-23 | 浙江浙大中控信息技术有限公司 | Tape jam detection and the signal lights reported to the police |
| CN106781594A (en) * | 2016-12-26 | 2017-05-31 | 上海澳星照明电器制造有限公司 | Data signal acquisition and processing system |
| CN106803354A (en) * | 2015-11-26 | 2017-06-06 | 石秋芹 | A kind of traffic signal light fault detection means |
| CN207302344U (en) * | 2017-09-15 | 2018-05-01 | 南昌金科交通科技股份有限公司 | A kind of intelligent traffic lamp real-time control system |
-
2017
- 2017-09-18 CN CN201710837934.4A patent/CN107633696A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101896951A (en) * | 2007-12-03 | 2010-11-24 | 奥尔德里奇交通系统私人有限公司 | An LED driver method for traffic lanterns |
| CN201159943Y (en) * | 2007-12-19 | 2008-12-03 | 中国科学院自动化研究所 | Road traffic signal controller |
| CN103688298A (en) * | 2011-07-18 | 2014-03-26 | 李兴洙 | Apparatus and method for controlling traffic signals |
| CN102629419A (en) * | 2012-04-12 | 2012-08-08 | 中国计量学院 | Fault detection device for LED traffic lights |
| CN202720785U (en) * | 2012-04-12 | 2013-02-06 | 中国计量学院 | Fault detection apparatus for LED traffic lights |
| CN102890870A (en) * | 2012-10-30 | 2013-01-23 | 重庆交通大学 | Self diagnosis method and device for faults of traffic signal control machine |
| CN103280117A (en) * | 2013-06-10 | 2013-09-04 | 西安费斯达自动化工程有限公司 | Intelligent fault data-logging and network alarm system of traffic lights |
| CN105139675A (en) * | 2015-09-18 | 2015-12-09 | 成都融创智谷科技有限公司 | Urban intelligent traffic command device integrated with monitoring and network feedback units |
| CN106803354A (en) * | 2015-11-26 | 2017-06-06 | 石秋芹 | A kind of traffic signal light fault detection means |
| CN205722436U (en) * | 2016-03-14 | 2016-11-23 | 浙江浙大中控信息技术有限公司 | Tape jam detection and the signal lights reported to the police |
| CN106781594A (en) * | 2016-12-26 | 2017-05-31 | 上海澳星照明电器制造有限公司 | Data signal acquisition and processing system |
| CN207302344U (en) * | 2017-09-15 | 2018-05-01 | 南昌金科交通科技股份有限公司 | A kind of intelligent traffic lamp real-time control system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112345964A (en) * | 2020-10-27 | 2021-02-09 | 歌尔微电子有限公司 | Traffic signal lamp detection device and method |
| CN112345964B (en) * | 2020-10-27 | 2023-02-24 | 歌尔微电子有限公司 | Traffic signal lamp detection device and method |
| CN113112834A (en) * | 2021-04-14 | 2021-07-13 | 广东古田智能科技有限公司 | Traffic light system and lamp bead fault detection method thereof |
| CN113744545A (en) * | 2021-08-26 | 2021-12-03 | 广东华络电子科技有限公司 | Signal control circuit and intelligent traffic signal lamp safety power utilization system with same |
| CN113744545B (en) * | 2021-08-26 | 2023-11-03 | 广东华络电子科技有限公司 | Signal control circuit and intelligent traffic signal lamp safety power utilization system with same |
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Application publication date: 20180126 |