CN109377777A - A kind of additional transport lamp system and its control method - Google Patents
A kind of additional transport lamp system and its control method Download PDFInfo
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- CN109377777A CN109377777A CN201811573425.6A CN201811573425A CN109377777A CN 109377777 A CN109377777 A CN 109377777A CN 201811573425 A CN201811573425 A CN 201811573425A CN 109377777 A CN109377777 A CN 109377777A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/09623—Systems involving the acquisition of information from passive traffic signs by means mounted on the vehicle
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Abstract
The present invention relates to a kind of additional transport lamp system and its control method, solution be traffic lights is not eye-catching enough, cannot play completely remind driver the technical issues of, by using include lamp system and auxiliary signal lamp system；The auxiliary signal lamp system includes the signal lamp interface system for connection signal lamp system, and signal lamp interface system is connected with for the Condition Monitoring Unit of signal lamp state in monitoring signals lamp system and MCU unit；The MCU unit is connected with control unit, and control unit is connected with first interface unit and second interface unit, and first interface unit is connected with power supply unit and realizes power supply, and second interface unit is used for the PERCOM peripheral communication of control unit；The first interface unit and second interface unit are connected with optical control element jointly, and optical control element is also connected with the technical solution of red light LED unit and amber light LED unit, preferably resolve the problem, can be used in traffic control.
Description
Technical field
The present invention relates to field of traffic control, and in particular to a kind of additional transport lamp system and its control method.
Background technique
The present current instruction and control for being completely dependent on lamp system in crossing, when red light, which waits, to pass through, if small size gasoline
The oversize vehicles such as bus or truck are parked in front of vehicle, the visual field of chauffeur can be blocked completely by front truck, can't see
Signal lamp variation, thus cause noncoconscious property violating the regulations, trouble not only is caused to driver, but also easily cause safety accident.
The present invention is based on present traffic lights situations, provide a kind of additional transport signal that can increase driver attention
Lamp system and its control method.
Summary of the invention
That the technical problem to be solved by the present invention is to traffic lights existing in the prior art is not eye-catching enough, cannot play completely
The technical issues of reminding driver.A kind of new additional transport lamp system is provided, which, which has, changes
The highlighting of kind traffic lights, solving vehicle front has the characteristics of cannot seeing traffic light status when barrier clearly.
In order to solve the above technical problems, the technical solution adopted is as follows:
A kind of additional transport lamp system, the additional transport lamp system includes lamp system and auxiliary signal
Lamp system；The auxiliary signal lamp system includes the signal lamp interface system for connection signal lamp system, signal lamp interface system
System is connected with for the Condition Monitoring Unit of signal lamp state in monitoring signals lamp system and MCU unit；The MCU unit connects
It is connected to control unit, control unit is connected with first interface unit and second interface unit, and first interface unit is connected with power supply
Unit realizes power supply, and second interface unit is used for the PERCOM peripheral communication of control unit；The first interface unit and second interface list
Member is connected with optical control element jointly, and optical control element is also connected with red light LED unit and amber light LED unit；
The red light LED unit is red light for characterizing traffic light status, and amber light LED unit is for characterizing traffic light status
For green light or amber light, red light LED unit and amber light LED unit are respectively positioned in the channelizing line region on road.
The working principle of the invention: the present invention is monitored by the operating status for traffic lights, and on road
The auxiliary signal lamp system of setting and the linkage of traffic lights operating status in channelizing line or channelizing line arrow；Auxiliary signal lamp system energy
Enough operating statuses according to existing traffic lights, adjustment control red light LED unit or the output of amber light LED unit remind driver's
Signal.Solve in front of driver when having the barriers such as cart/lorry can not effectively perceive traffic light status, so that violating the regulations asks
Topic.
In above scheme, for optimization, further, the red light LED unit includes multiple red light LED, amber light LED unit
Including multiple amber light LED；Red light LED and amber light LED are based on the guiding arrowhead form on road, spaced setting；Institute
It is in parallel to state adjacent red light LED and amber light LED.
Further, the Condition Monitoring Unit includes Tansducer For Color Distiguishing and vision detection system.
Further, the MCU unit, which is also connected with, is manually entered interface for signal in lamp system to be manually entered
Lamp state.
The present invention also provides a kind of control method of additional transport lamp system, the control method is based on above-mentioned auxiliary
Traffic signal lamp system is helped, the control method includes:
Step 1, the operating status of signal lamp in Condition Monitoring Unit monitoring signals lamp system；
The operating status of signal lamp is transferred to MCU unit by step 2, Condition Monitoring Unit, and MCU unit is according to step 1
Signal lamp state generate corresponding control encoded signal and be transferred to control unit
Step 3, control unit will control encoded signal and be transferred to optical control element, and optical control element is according to control encoded signal
Control the opening and closing of red light LED unit and the opening and closing of amber light LED unit.
Further, monitoring uses switching value, color recognition detection and three tunnel of vision-based detection simultaneously in the step 1
Capable method is completed.
Further, in the vision-based detection, comprising:
Step 1, traffic lights image is obtained, the conversion for establishing RGB color model and HIS color space model is closed
It is model,
Wherein, the chrominance information in H expression HIS color space, the intensity of I expression light, the saturation degree of S expression color, R,
G, B is respectively the component value of RGB color；
Step 2, color segmentation is carried out to traffic lights image according to the transformational relation model in step 1, and extracted
Red, green, yellow three color therein, as traffic lights candidate region:
Step 3, the attribute of definition signal lamp shape image block, by the pixel of the candidate region of the same color in step 2
Point connection forms an image block, rejects undesirable image block using the attribute of signal lamp shape image block, calculates circle
Shape degree determines whether image block is signal lamp, the calculation method of circularity according to the circularity of image block are as follows:
Wherein, P indicates that the perimeter of image block, N indicate the number of pixels of image block, and A indicates the area of image block, a mark
The circularity of director circle is 1；
Step 4, the notable feature for defining traffic lights carries out the shape segmentations of image according to traffic lights notable feature；
Step 5, definition signal lamp template determines the position of traffic lights in traffic lights image, calculates traffic signals
Position of the center of circle of border circular areas in rectangle frame in lamp image area to be tested, according to signal lamp template and signal lamp in square
Position in shape frame judges that signal lamp state is red light phase or green light phase or amber light state.
Further, in the color segmentation of step 2:
0≤H≤18 or when 335≤H≤360, and when S >=0.3, pixel is determined as red light region；
18≤H≤55 and when S >=0.3, pixel is determined as amber light region；
When 159≤H≤201, and when S >=0.15, pixel is determined as red light region.
Further, step 5 includes:
If the center of circle is located within the scope of the top one third of rectangle frame, it is determined as red signal, the center of circle is located at rectangular-shaped frame
Within the scope of the one third of middle part, then it is determined as steady yellow, the center of circle is located within the scope of the one third of rectangle frame top, is then determined as
Red signal.
The present invention thoughts on traffic lights monitoring running state reliability and accuracy, herein use switching value monitoring,
Three kinds of parallel modes of vision-based detection and color sensor are detected, to improve detection reliability and accuracy.
Beneficial effects of the present invention: the present invention realizes the linkage of additional transport lamp system Yu existing traffic light systems, energy
It enough solves existing barrier to exist in vehicle front, driver can not observe traffic lights operating status, can not determine under vehicle
The dynamic problem of one walking.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1, the additional transport lamp system structural schematic diagram in embodiment 1.
Fig. 2, the setting schematic diagram of red light LED unit and amber light LED unit in embodiment 1.
Fig. 3, color sensor detect the schematic diagram of traffic lights operating status.
Fig. 4, the device scheme of installation of vision-based detection traffic lights operating status.
Fig. 5, the additional transport lamp system control method flow diagram in embodiment 1.
The travel of Fig. 6, the lane containing tide in embodiment 1 are oriented to code pattern.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to limit
The fixed present invention.
Embodiment 1
The present embodiment provides a kind of additional transport lamp system, such as Fig. 1, the additional transport lamp system includes letter
Signal lamp system and auxiliary signal lamp system；The auxiliary signal lamp system includes the signal lamp interface for connection signal lamp system
System, signal lamp interface system are connected with Condition Monitoring Unit and MCU for signal lamp state in monitoring signals lamp system
Unit；The MCU unit is connected with control unit, and control unit is connected with first interface unit and second interface unit, and first
Interface unit is connected with power supply unit and realizes power supply, and second interface unit is used for the PERCOM peripheral communication of control unit；Described first connects
Mouth unit and second interface unit are connected with optical control element jointly, and optical control element is also connected with red light LED unit and amber light LED is mono-
Member；
The red light LED unit is red light for characterizing traffic light status, and amber light LED unit is for characterizing traffic light status
For green light or amber light, red light LED unit and amber light LED unit are respectively positioned in the channelizing line region on road.
Condition Monitoring Unit, the state for real-time monitoring signal lamp.Signal lamp interface system, for receiving signal lamp system
The status information that system or monitoring system transmit.MCU unit, i.e. main control unit, for handling all kinds of traffic light status information, and it is defeated
Class signal is controlled out.Control unit, the control signal transmitted for receiving MCU unit, and export control action.Power supply unit,
For providing electric energy to auxiliary pilot lamp.First interface unit, for realizing the function of supplying power of power supply unit, using existing confession
Electric module and interface.Second interface unit, for realizing the communication of control unit and other units, using existing communication interface
Such as RS232 or RS485.Optical control element, for controlling signal and the light variation of auxiliary pilot lamp.Red light LED unit, auxiliary letter
The red unit of signal lamp.Amber light LED unit, the yellow unit of auxiliary pilot lamp.
Wherein, if Fig. 2, the red light LED unit include multiple red light LED, amber light LED unit includes multiple amber light LED；
Red light LED and amber light LED are based on the guiding arrowhead form on road, spaced setting；The adjacent red light LED and
Amber light LED is in parallel.Reddish yellow is closely alternate, i.e., red light, amber light are spaced apart, and more highlights the light variation of auxiliary pilot lamp.And
Join adjacent, i.e., the LED light of every two adjacent same color connects in parallel and avoids adjacent signal in circuit
Lamp breaks down simultaneously because of series connection.
In Fig. 2, hollow sphere indicates yellow LED lamp, and medicine ball indicates red LED lamp；When the red light of traffic lights is bright, ground
Red LED lamp on face issues danger signal in real time, the yellow LED lamp when amber light or green light of traffic lights, on ground
Yellow signal is issued in real time.
In order to improve monitoring reliability and accuracy, it is preferable that the Condition Monitoring Unit includes Tansducer For Color Distiguishing
And vision detection system.Tansducer For Color Distiguishing uses existing sensor, set-up mode such as Fig. 3.Vision detection system setting
Such as Fig. 4.In Fig. 4, pass through video camera S1Monitor L in real time1And L2Signal lamp state, video camera S2Monitor L in real time3And L4Signal lamp shape
State obtains traffic lights image.
In order to improve the reliability of monitoring, it is preferable that the MCU unit, which is also connected with, is manually entered interface for artificial defeated
Enter signal lamp state in lamp system.If MCU unit breaks down, or when needing manually controlled traffic signal lamp, can pass through people
Traffic signal state is inputted MCU unit by work input interface.
Final signal is transmitted to optical control element by second interface unit by control unit, and optical control element is according to receiving
The light of red light LED unit and amber light LED unit changes in traffic signalization additional transport lamp system, if traffic signals
The red light of lamp issues signal, then starts the red light emitting diodes R of red light LED unit, if the amber light or green light of traffic lights
Signal is issued, then starts the yellow light-emitting diode Y of amber light LED unit；Power supply unit by the with interface unit for light-operated list
Member and red light LED unit and amber light LED unit are powered.
The present embodiment also provides a kind of control method of additional transport lamp system, and the control method is based on above-mentioned
Additional transport lamp system, such as Fig. 5, the control method include:
Step 1, the operating status of signal lamp in Condition Monitoring Unit monitoring signals lamp system；
The operating status of signal lamp is transferred to MCU unit by step 2, Condition Monitoring Unit, and MCU unit is according to step 1
Signal lamp state generate corresponding control encoded signal and be transferred to control unit
Step 3, control unit will control encoded signal and be transferred to optical control element, and optical control element is according to control encoded signal
Control the opening and closing of red light LED unit and the opening and closing of amber light LED unit.
Further, monitoring uses switching value, color recognition detection and three tunnel of vision-based detection simultaneously in the step 1
Capable method is completed.
Specifically, the vision-based detection includes:
Step 1, traffic lights image is obtained, the conversion for establishing RGB color model and HIS color space model is closed
It is model,
Wherein, the chrominance information in H expression HIS color space, the intensity of I expression light, the saturation degree of S expression color, R,
G, B is respectively the component value of RGB color；
Step 2, color segmentation is carried out to traffic lights image according to the transformational relation model in step 1, and extracted
Red, green, yellow three color therein, as traffic lights candidate region:
Step 3, the attribute of definition signal lamp shape image block, by the pixel of the candidate region of the same color in step 2
Point connection forms an image block, and the present embodiment uses eight connectivity mode；It is rejected not using the attribute of signal lamp shape image block
Satisfactory image block calculates circularity, determines whether image block is signal lamp according to the circularity of image block, circularity
Calculation method are as follows:
Wherein, P indicates that the perimeter of image block, N indicate the number of pixels of image block, and A indicates the area of image block, a mark
The circularity of director circle is 1, by adjusting the size of k value, sets up above formula always；
Step 4, the notable feature for defining traffic lights carries out the shape segmentations of image according to traffic lights notable feature；Signal
The rectangle frame of lamp has fixed aspect ratio, and by given threshold M, the low pixel approximation black region in image is extracted, is carried out
Then coarse segmentation is connected the pixel of candidate region to form image block, be rejected using fixed aspect ratio by eight connectivity method
Undesirable dark border completes the shape segmentations of image；
Step 5, definition signal lamp template determines the position of traffic lights in traffic lights image, calculates traffic signals
Position of the center of circle of border circular areas in rectangle frame in lamp image area to be tested, according to signal lamp template and signal lamp in square
Position in shape frame judges that signal lamp state is red light phase or green light phase or amber light state.
It is smaller in the correlation in HIS space model between 3 components of H, I, S, it can be done independently from using tone H
The colored region of brightness I is divided.
In detail, in the color segmentation of step 2:
0≤H≤18 or when 335≤H≤360, and when S >=0.3, pixel is determined as red light region；
18≤H≤55 and when S >=0.3, pixel is determined as amber light region；
When 159≤H≤201, and when S >=0.15, pixel is determined as red light region.
In step 5, if the center of circle is located within the scope of the top one third of rectangle frame, it is determined as red signal, center of circle position
In within the scope of the one third of rectangular-shaped frame middle part, then it is determined as steady yellow, the center of circle is located within the scope of the one third of rectangle frame top,
Then it is determined as red signal.
The present embodiment is the signal lamp number that video camera shooting is determined according to the location of video camera, by comparing signal
The size of distance D of the lamp frame away from image left frame, determines position of the signal lamp on travel, to complete signal lamp
Status monitoring.
Existing traffic lights include no left turn, forbid straight trip, all-pass and prohibit four kinds of states entirely, in a manner of 0-1 pair
Traveling lane in Fig. 6 is encoded, and auxiliary pilot lamp state and state encoding table are obtained, and such as table 1, Y indicates steady yellow, R
Indicate red signal:
Table 1
It is encoded according to the control of the state encoding information acquisition signal lamp state in table 1, assists believing using the coding-control
The signal condition of LED unit in signal lamp system, to complete the control task of additional transport lamp system.
In conclusion the present embodiment just realizes a kind of additional transport lamp system and control method.In traffic route
In the case where becoming increasingly complex, binding signal lamp and auxiliary signal lamp system of the present invention, using switching value system, light sensation and view
Feel the variation synchronous with traffic lights of detection method real-time control auxiliary pilot lamp, be laid out using reasonable light, is generated high
The auxiliaring effect of effect.
Although the illustrative specific embodiment of the present invention is described above, in order to the technology of the art
Personnel are it will be appreciated that the present invention, but the present invention is not limited only to the range of specific embodiment, to the common skill of the art
For art personnel, as long as long as various change the attached claims limit and determine spirit and scope of the invention in, one
The innovation and creation using present inventive concept are cut in the column of protection.
Claims (9)
1. a kind of additional transport lamp system, it is characterised in that: the additional transport lamp system includes
Lamp system and auxiliary signal lamp system；The auxiliary signal lamp system includes the signal for connection signal lamp system
Lamp interface system, signal lamp interface system be connected with the Condition Monitoring Unit for signal lamp state in monitoring signals lamp system with
And MCU unit；The MCU unit is connected with control unit, and control unit is connected with first interface unit and second interface unit,
First interface unit is connected with power supply unit and realizes power supply, and second interface unit is used for the PERCOM peripheral communication of control unit；Described
One interface unit and second interface unit are connected with optical control element jointly, and optical control element is also connected with red light LED unit and amber light
LED unit；
The red light LED unit is red light for characterizing traffic light status, and amber light LED unit is green for characterizing traffic light status
Lamp or amber light, red light LED unit and amber light LED unit are respectively positioned in the channelizing line region on road.
2. additional transport lamp system according to claim 1, it is characterised in that: the red light LED unit includes more
A red light LED, amber light LED unit include multiple amber light LED；Red light LED and amber light LED is with the guiding arrowhead form on road
Basis, spaced setting；The adjacent red light LED and amber light LED are in parallel.
3. additional transport lamp system according to claim 2, it is characterised in that: the Condition Monitoring Unit further includes
Tansducer For Color Distiguishing and vision detection system
4. additional transport lamp system according to claim 2, it is characterised in that: the MCU unit is also connected with someone
Work input interface is for being manually entered signal lamp state in lamp system.
5. a kind of control method of additional transport lamp system, it is characterised in that: the control method is based on claim 1-4
Any additional transport lamp system, the control method include:
Step 1, the operating status of signal lamp in Condition Monitoring Unit monitoring signals lamp system；
The operating status of signal lamp is transferred to MCU unit by step 2, Condition Monitoring Unit, and MCU unit is according to the letter of step 1
Signal lamp state generates corresponding control encoded signal and is transferred to control unit
Step 3, control unit will control encoded signal and be transferred to optical control element, and optical control element is controlled according to control encoded signal
The opening and closing of red light LED unit and the opening and closing of amber light LED unit.
6. the control method of additional transport lamp system according to claim 5, it is characterised in that: in the step 1
Monitoring is completed using the method for switching value, color recognition detection and vision-based detection three-channel parallel.
7. the control method of additional transport lamp system according to claim 6, it is characterised in that: the vision-based detection
In, comprising:
Step 1, traffic lights image is obtained, the transformational relation mould of RGB color model Yu HIS color space model is established
Type,
Wherein, H indicates the chrominance information in HIS color space, and I indicates the intensity of light, and S indicates the saturation degree of color, and R, G, B divide
Not Wei RGB color component value；
Step 2, color segmentation is carried out to traffic lights image according to the transformational relation model in step 1, and extracted wherein
Red, green, yellow three color, as traffic lights candidate region:
Step 3, the attribute of definition signal lamp shape image block connects the pixel of the candidate region of the same color in step 2
It connects to form an image block, rejects undesirable image block using the attribute of signal lamp shape image block, calculate circularity,
Determine whether image block is signal lamp, the calculation method of circularity according to the circularity of image block are as follows:
Wherein, P indicates that the perimeter of image block, N indicate the number of pixels of image block, and A indicates the area of image block, a standard round
Circularity be 1；
Step 4, the notable feature for defining traffic lights carries out the shape segmentations of image according to traffic lights notable feature；
Step 5, definition signal lamp template determines the position of traffic lights in traffic lights image, calculates traffic lights figure
As position of the center of circle in rectangle frame of border circular areas in area to be tested, according to signal lamp template and signal lamp in rectangle frame
In position judge that signal lamp state is red light phase or green light phase or amber light state.
8. the control method of additional transport lamp system according to claim 7, it is characterised in that: the vision-based detection
In, comprising: in the color segmentation of step 2:
0≤H≤18 or when 335≤H≤360, and when S >=0.3, pixel is determined as red light region；
18≤H≤55 and when S >=0.3, pixel is determined as amber light region；
When 159≤H≤201, and when S >=0.15, pixel is determined as red light region.
9. the control method of additional transport lamp system according to claim 7, it is characterised in that: step 5 includes:
If the center of circle is located within the scope of the top one third of rectangle frame, it is determined as red signal, the center of circle is located in the middle part of rectangular-shaped frame
Within the scope of one third, then it is determined as steady yellow, the center of circle is located within the scope of the one third of rectangle frame top, then is determined as red light
Signal.
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| CN201811573425.6A CN109377777A (en) | 2018-12-21 | 2018-12-21 | A kind of additional transport lamp system and its control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811573425.6A CN109377777A (en) | 2018-12-21 | 2018-12-21 | A kind of additional transport lamp system and its control method |
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| CN109377777A true CN109377777A (en) | 2019-02-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112614353A (en) * | 2020-12-17 | 2021-04-06 | 招商局重庆交通科研设计院有限公司 | Tunnel virtual stereo forbidden identification projection system |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112614353A (en) * | 2020-12-17 | 2021-04-06 | 招商局重庆交通科研设计院有限公司 | Tunnel virtual stereo forbidden identification projection system |
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