CN105070082A - Traffic light and information interaction system between traffic light and driver - Google Patents
Traffic light and information interaction system between traffic light and driver Download PDFInfo
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- CN105070082A CN105070082A CN201510459556.1A CN201510459556A CN105070082A CN 105070082 A CN105070082 A CN 105070082A CN 201510459556 A CN201510459556 A CN 201510459556A CN 105070082 A CN105070082 A CN 105070082A
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Abstract
The invention discloses a traffic light and an information interaction system between the traffic light and a driver, and can enable the driver to grasp master state and time information of the traffic light in front in advance and properly adjust vehicle speed in an allowable range, thereby improving the probability of meeting a ''green light''. The technical scheme is that GPS information of the traffic light in front is obtained through wireless communication, combined with the current GPS information of the vehicle, distance between a current position of the vehicle and the traffic light is calculated according to a formula AB=R*arccos[(sinb1)*(sinb2)+(cosb1)*(cosb2)*cos(a1-a2)], and combined with working parameters, a current light color and countdown remaining time of the traffic light, a vehicle speed range for the vehicle to smoothly pass is calculated according to v=s/t. The information interaction system provided by the invention is novel in method, and can effectively reduce start and stop times of the vehicle at crossroads, thereby reducing energy consumption, reducing waiting time, and improving passing efficiency, and the information interaction system belongs to innovation in the field of intelligent transportation.
Description
Technical field
The present invention relates to information interaction system, particularly a kind of traffic lights and and driver between information interaction system.
Background technology
Since traffic lights comes out, namely in maintenance crossroad access order, play vital effect.Information interaction between existing traffic lights and driver can only start after traffic lights enters driver's seat, rule is that " red light " stops, " amber light " is waited for, " green light " travels, generally, the probability running into three kinds of lamps is certain, under the prerequisite not changing traffic rules, if driver can grasp the information such as state and time of upcoming traffic lamp in advance, just in allowed band, suitably can adjust the speed of a motor vehicle, the probability running into " green light " is improved, significant, but also do not have a kind of about the information interaction system between traffic lights and driver at present, prior art is this problem unresolved also.
Summary of the invention
For above-mentioned situation, for overcoming the defect of prior art, the object of the present invention be just to provide a kind of traffic lights and and driver between information interaction system, make driver before traffic lights enters its visual field, just can know state and the temporal information of traffic lights, and according to information of the present invention, in conjunction with actual conditions in allowed band, the suitable adjustment speed of a motor vehicle, when ensureing that vehicle drives to crossroad place, traffic lights is " green light ".
The technical scheme that the present invention solves comprises traffic lights and car-mounted terminal.
Described traffic lights comprises traffic light controller, driver, traffic lights display screen and signal projector.
Described car-mounted terminal comprises signal receiver, GPS module, storer, car-mounted terminal controller, voice module and car-mounted terminal display.
Described traffic light controller connection signal transmitter and driver, driver connects traffic lights display screen, wherein traffic light controller is used for the display providing traffic lights to driver, and the latitude and longitude information of traffic lights is sent to signal projector, light color on two current directions, the running parameter of traffic lights is (as red light duration, long green light time etc.) and count down information, traffic lights display screen is for showing light color and count down information, signal projector outwards sends the latitude and longitude information of traffic lights with electromagnetic wave, light color on two current directions, the running parameter of traffic lights and count down information.
Described signal receiver, GPS module, storer, voice module is all connected with car-mounted terminal controller with car-mounted terminal display, wherein signal receiver is for receiving the latitude and longitude information of traffic lights, light color on two current directions and the running parameter of traffic lights, GPS module is used for providing the speed of a motor vehicle, travel direction, vehicle latitude and longitude information, storer is for the latitude and longitude information storing certain area inner cross crossing title and match, voice module is for reporting the vehicle speed range that can pass through smoothly, car-mounted terminal display is for showing the light color in current direction, count down information and the vehicle speed range that can pass through smoothly.
Described signal projector and signal receiver adopt " one-to-many " mode of operation, and namely multiple signal receiver can receive the signal that same signal projector is launched jointly.
The crossroad titles stored in described storer mates corresponding with its latitude and longitude information one by one.
The distance that AB=R*arccos [(sinb1) * (sinb2)+(cosb1) * (cosb2) * cos (a1-a2)] calculates traffic lights and current vehicle position pressed by described car-mounted terminal controller, then calculates according to v=s/t the vehicle speed range that vehicle can pass through smoothly.
The inventive method is novel, perfect in shape and function, effectively can reduce the start-stop time that vehicle is located at the parting of the ways, reduces energy resource consumption, and the abatement stand-by period, improving traffic efficiency, is the innovation of intelligent transportation field.
Accompanying drawing explanation
Fig. 1 is system chart of the present invention.
Fig. 2 is traffic lights of the present invention electrical connection block diagram.
Fig. 3 is car-mounted terminal of the present invention electrical connection block diagram.
Fig. 4 is workflow diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Provided by Fig. 1,2,3,4, the present invention includes traffic lights and car-mounted terminal.
Described traffic lights comprises traffic light controller, driver, traffic lights display screen and signal projector.
Described car-mounted terminal comprises signal receiver, GPS module, storer, car-mounted terminal controller, voice module and car-mounted terminal display.
Described traffic light controller connection signal transmitter and driver, driver connects traffic lights display screen, wherein traffic light controller is used for the display providing traffic lights to driver, and the latitude and longitude information of traffic lights is sent to signal projector, light color on two current directions, the running parameter of traffic lights is (as red light duration, long green light time etc.) and count down information, traffic lights display screen is for showing light color and count down information, signal projector outwards sends the latitude and longitude information of traffic lights with electromagnetic wave, light color on two current directions, the running parameter of traffic lights and count down information.
Described signal receiver, GPS module, storer, voice module is all connected with car-mounted terminal controller with car-mounted terminal display, wherein signal receiver is for receiving the latitude and longitude information of traffic lights, light color on two current directions and the running parameter of traffic lights, GPS module is used for providing the speed of a motor vehicle, travel direction, vehicle latitude and longitude information, storer is for the latitude and longitude information storing certain area inner cross crossing title and match, voice module is for reporting the vehicle speed range that can pass through smoothly, car-mounted terminal display is for showing the light color in current direction, count down information and the vehicle speed range that can pass through smoothly.
Described signal projector and signal receiver adopt " one-to-many " mode of operation, and namely multiple signal receiver can receive the signal that same signal projector is launched jointly.
The crossroad titles stored in described storer mates corresponding with its latitude and longitude information one by one.
The distance that AB=R*arccos [(sinb1) * (sinb2)+(cosb1) * (cosb2) * cos (a1-a2)] calculates traffic lights and current vehicle position pressed by described car-mounted terminal controller, then calculates according to v=s/t the vehicle speed range that vehicle can pass through smoothly.
Described traffic light controller adopts the timing of STM32F103 single-chip microcomputer and periphery thereof, reset circuit realizes, traffic lights display screen adopts three look dot matrix screens, driver utilizes 74HC138 line driving chip and BMI5026 row driving chip to form, and signal projector can adopt NRF905 wireless transmitter module.
Described signal receiver can adopt the wireless transmitting/receiving module of NRF905, GPS module selects U-blox series GPS module, storer adopts external SD card, car-mounted terminal display can select TFT type liquid crystal display, voice module can adopt WTM-SD high tone quality voice module, and car-mounted terminal controller adopts the timing of STM32F103 single-chip microcomputer and periphery thereof, reset circuit realizes.
Principle of work of the present invention is as follows:
By obtaining the GPS information of the current GPS information of vehicle and upcoming traffic lamp thereof, according to Pythagorean theorem and the cosine law, the distance of current vehicle position and traffic lights is calculated according to formula AB=R*arccos [(sinb1) * (sinb2)+(cosb1) * (cosb2) * cos (a1-a2)], in conjunction with the current light color of traffic lights, running parameter and countdown excess time, calculate according to formula v=s/t the vehicle speed range that vehicle can pass through smoothly.
Figure 4 shows that workflow diagram of the present invention, suppose that certain traffic lights present position A longitude and latitude is for (a1, b1), this location name is " welcome road and crossing, century road ", and in running parameter, long green light time is t
gREENsecond, certain moment one these traffic lights of automobile approaching, B longitude and latitude in vehicle present position is (a2, b2) this moment, and specific works flow process is:
Signal projector on traffic lights is by the latitude and longitude information of traffic lights, light color on two current directions, running parameter and the count down information of traffic lights outwards send, information receiver on car-mounted terminal receives above information, first car-mounted terminal controller inquires (a1 according to storer internal information, b1) name of position is called " welcome road and crossing, century road ", the spacing of AB is calculated again according to formula AB=R*arccos [(sinb1) * (sinb2)+(cosb1) * (cosb2) * cos (a1-a2)], wherein R is earth radius, average is 6370km, the unit of AB is km.
If traffic lights current state is green light, countdown excess time is t
ysecond, then according to formula v=s/t, vehicle can smoothly by minimum speed of a motor vehicle v that current green light need keep
min=(3600*AB)/t
y, wherein v
minunit be km/h, car-mounted terminal display is by the crossroad titles in front, light color, count down information and v
minshow, voice module reports the information of such as " minimum speed of a motor vehicle xx can pass through welcome road and crossing, century road smoothly " simultaneously, driver is according to this information, navigation instrument, current vehicle speed and road conditions, the suitable adjustment speed of a motor vehicle, above-mentioned calculating and prompting process are with certain periodic refresh, and after the speed of a motor vehicle adjusts to desired value, voice module reports the information of such as " keep current vehicle speed can pass through welcome road and crossing, century road smoothly ".
If traffic lights current state is red light or amber light, countdown excess time is t
nsecond, then according to formula v=s/t, vehicle can smoothly by max. speed v that next green light need keep
max=(3600*AB)/t
n, minimum speed of a motor vehicle v
min=(3600*AB)/(t
y+ t
gREEN), wherein v
max, v
minunit be km/h, car-mounted terminal display is by the light color in current direction, count down information and vehicle speed range show, voice module reports such as " max. speed xx simultaneously, minimum speed of a motor vehicle xx can pass through welcome road and crossing, century road smoothly " information, driver is according to this information, navigation instrument, current vehicle speed and road conditions, the suitable adjustment speed of a motor vehicle, above-mentioned calculating and prompting process are with certain periodic refresh, after the speed of a motor vehicle adjusts to desired value, the information that voice module is reported such as " keeping current vehicle speed can pass through welcome road and crossing, century road smoothly ".
Compared with prior art, the present invention has the following advantages:
1, the present invention can reduce the start-stop time that vehicle is located at the parting of the ways, reduces energy resource consumption in startup, braking procedure.
2, the present invention can cut down the stand-by period that vehicle is located at the parting of the ways, improves the traffic efficiency of crossroad.
3, the inventive method novelty, perfect in shape and function, easy to use, effective, is the innovation of intelligent transportation field, has good economic benefit and social benefit.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art the present invention spirit and principle inspiration under; can do various amendment, conversion or equivalent replacement, but these conversion and amendment are still within protection scope of the present invention.
Claims (8)
1. traffic lights and and driver between an information interaction system, comprise traffic lights and car-mounted terminal.
2. a kind of traffic lights according to claim 1 and and driver between information interaction system, it is characterized in that: described traffic lights comprises traffic light controller, driver, traffic lights display screen and signal projector.
3. a kind of traffic lights according to claim 1 and and driver between information interaction system, it is characterized in that: described car-mounted terminal comprises signal receiver, GPS module, storer, car-mounted terminal controller, voice module and car-mounted terminal display.
4. a kind of traffic lights according to claim 2 and and driver between information interaction system, it is characterized in that: described traffic light controller connection signal transmitter and driver, driver connects traffic lights display screen, wherein traffic light controller provides traffic lights display to driver, and the latitude and longitude information of traffic lights is sent to signal projector, light color on two current directions, the running parameter of traffic lights is (as red light duration, long green light time etc.) and count down information, traffic lights display screen display light color and count down information, signal projector outwards sends the latitude and longitude information of traffic lights with electromagnetic wave, light color on two current directions, the running parameter of traffic lights and count down information.
5. a kind of traffic lights according to claim 3 and and driver between information interaction system, it is characterized in that: described signal receiver, GPS module, storer, voice module is all connected with car-mounted terminal controller with car-mounted terminal display, wherein signal receiver receives the latitude and longitude information of traffic lights, light color on two current directions, the running parameter of traffic lights and count down information, GPS module provides the speed of a motor vehicle, travel direction, vehicle latitude and longitude information, storer is for the latitude and longitude information storing certain area inner cross crossing title and match, voice module reports the vehicle speed range that can pass through smoothly, the light color in the current direction of car-mounted terminal display display, count down information and the vehicle speed range that can pass through smoothly.
6. a kind of traffic lights according to claim 2 and 3 and and driver between information interaction system, it is characterized in that: described signal projector and signal receiver adopt " one-to-many " mode of operation, namely multiple signal receiver can receive the signal that same signal projector is launched jointly.
7. a kind of traffic lights according to claim 3 and and driver between information interaction system, it is characterized in that: the crossroad titles stored in described storer mates corresponding with its latitude and longitude information one by one.
8. a kind of traffic lights according to claim 5 and and driver between information interaction system, it is characterized in that:
Step one: by obtaining the GPS information of the current GPS information of vehicle and upcoming traffic lamp thereof, according to Pythagorean theorem and the cosine law, the distance of current vehicle position and traffic lights is calculated according to formula AB=R*arccos [(sinb1) * (sinb2)+(cosb1) * (cosb2) * cos (a1-a2)], wherein R is earth radius, average is the unit of 6370km, AB is km;
Step 2: in conjunction with the current light color of traffic lights, running parameter and countdown excess time, calculates according to formula v=s/t the vehicle speed range that vehicle can pass through smoothly, if traffic lights current state is green light, countdown excess time is t
ysecond, then vehicle can smoothly by minimum speed of a motor vehicle v that current green light need keep
min=(3600*AB)/t
y, wherein v
minunit be km/h, if traffic lights current state is red light or amber light, countdown excess time is t
nsecond, then vehicle can smoothly by max. speed v that next green light need keep
max=(3600*AB)/t
n, minimum speed of a motor vehicle v
min=(3600*AB)/(t
y+ t
gREEN), wherein v
max, v
minunit be km/h, t
gREENfor the long green light time of traffic lights.
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| CN201510459556.1A CN105070082A (en) | 2015-07-27 | 2015-07-27 | Traffic light and information interaction system between traffic light and driver |
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| CN201510459556.1A CN105070082A (en) | 2015-07-27 | 2015-07-27 | Traffic light and information interaction system between traffic light and driver |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105303857A (en) * | 2015-11-30 | 2016-02-03 | 爱易成技术(天津)有限公司 | Traffic guidance method at traffic crossing |
| CN105551276A (en) * | 2016-02-22 | 2016-05-04 | 爱易成技术(天津)有限公司 | Road traffic vehicle speed induction method |
| CN105654754A (en) * | 2016-01-20 | 2016-06-08 | 深圳前海达闼云端智能科技有限公司 | Vehicle control method and device |
| CN106837649A (en) * | 2017-03-03 | 2017-06-13 | 吉林大学 | Self study intelligence start stop system based on signal lamp countdown identification |
| CN107085961A (en) * | 2017-06-22 | 2017-08-22 | 公安部交通管理科学研究所 | A kind of method and system of car-mounted terminal, acquisition crossing traffic signal control information |
| CN107085962A (en) * | 2017-06-30 | 2017-08-22 | 福州大学 | A kind of method that pure electric automobile based on car networking obtains the speed by current green light |
| CN107358810A (en) * | 2017-09-13 | 2017-11-17 | 湖北汽车工业学院 | A kind of matching process of vehicle receiver traffic lights information |
| CN107784852A (en) * | 2016-08-31 | 2018-03-09 | 奥迪股份公司 | Electronic-controlled installation and method for vehicle |
| CN108288397A (en) * | 2018-03-09 | 2018-07-17 | 佛山市高芯科技服务有限公司 | A kind of SCM Based traffic lights |
| CN108629996A (en) * | 2018-05-21 | 2018-10-09 | 苏州纽克斯电源技术股份有限公司 | A kind of electric vehicle speed based reminding method and device based on intelligent traffic lamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105303857A (en) * | 2015-11-30 | 2016-02-03 | 爱易成技术(天津)有限公司 | Traffic guidance method at traffic crossing |
| CN105654754A (en) * | 2016-01-20 | 2016-06-08 | 深圳前海达闼云端智能科技有限公司 | Vehicle control method and device |
| CN105551276A (en) * | 2016-02-22 | 2016-05-04 | 爱易成技术(天津)有限公司 | Road traffic vehicle speed induction method |
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| CN107784852A (en) * | 2016-08-31 | 2018-03-09 | 奥迪股份公司 | Electronic-controlled installation and method for vehicle |
| CN106837649A (en) * | 2017-03-03 | 2017-06-13 | 吉林大学 | Self study intelligence start stop system based on signal lamp countdown identification |
| CN107085961A (en) * | 2017-06-22 | 2017-08-22 | 公安部交通管理科学研究所 | A kind of method and system of car-mounted terminal, acquisition crossing traffic signal control information |
| CN107085962A (en) * | 2017-06-30 | 2017-08-22 | 福州大学 | A kind of method that pure electric automobile based on car networking obtains the speed by current green light |
| CN107358810A (en) * | 2017-09-13 | 2017-11-17 | 湖北汽车工业学院 | A kind of matching process of vehicle receiver traffic lights information |
| CN107358810B (en) * | 2017-09-13 | 2020-07-17 | 湖北汽车工业学院 | Matching method for receiving traffic light information by vehicle |
| CN108288397A (en) * | 2018-03-09 | 2018-07-17 | 佛山市高芯科技服务有限公司 | A kind of SCM Based traffic lights |
| CN108629996A (en) * | 2018-05-21 | 2018-10-09 | 苏州纽克斯电源技术股份有限公司 | A kind of electric vehicle speed based reminding method and device based on intelligent traffic lamp |
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Application publication date: 20151118 |
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