CN117279163A - Energy-saving control system and method for road traffic lighting in tunnel with lamp being driven by vehicle - Google Patents
Energy-saving control system and method for road traffic lighting in tunnel with lamp being driven by vehicle Download PDFInfo
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- CN117279163A CN117279163A CN202311546044.XA CN202311546044A CN117279163A CN 117279163 A CN117279163 A CN 117279163A CN 202311546044 A CN202311546044 A CN 202311546044A CN 117279163 A CN117279163 A CN 117279163A
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- 238000005286 illumination Methods 0.000 description 22
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- 238000005457 optimization Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 5
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- 238000012544 monitoring process Methods 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
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- 206010039203 Road traffic accident Diseases 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000011217 control strategy Methods 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/115—Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/155—Coordinated control of two or more light sources
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/165—Controlling the light source following a pre-assigned programmed sequence; Logic control [LC]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention belongs to the technical field of traffic lighting energy-saving control, and provides a system and a method for controlling road traffic lighting energy-saving in a tunnel with a lamp driven by a vehicle, wherein the system comprises the following steps: identifying whether a vehicle passes at the first location; respectively acquiring lane information, vehicle driving direction information and vehicle speed information of a vehicle passing through the second position and the third position; acquiring lane information in a control road section to be illuminated; when the vehicle type information is the normal running vehicle, the information at the second position is consistent with the information at the third position, and the first radar sensor at the entrance of the control road section to be illuminated detects that the vehicle enters, the lamp in the specified distance in front of the vehicle is controlled to be turned on; when the second radar sensor detects the vehicle, the lamp of the first radar sensor is turned off, and the lamp in front of the vehicle is controlled to be turned on until the last lamp in front of the vehicle is the last lamp in the control section to be illuminated. The invention has more energy-saving and low time delay for controlling the traffic light.
Description
Technical Field
The invention relates to the technical field of traffic lighting energy-saving control, in particular to a system and a method for controlling road traffic lighting energy-saving in a tunnel with a lamp driven by a vehicle.
Background
At present, most traffic road sides are provided with illumination lamps for illumination at night, for the switching control of the illumination lamps, most of the illumination lamps are switched on at regulated time nowadays, for example, the illumination lamps are switched on at night in summer, at night in winter, at night in summer, and are switched off at left and right in the morning in the next morning, the control mode of the illumination lamps is relatively dead, for some overcast and rainy weather or haze weather, in order to switch on road side illumination lamps, relevant personnel are required to know the on-site visibility condition of the road, and then the illumination lamp switch management client is remotely informed to switch on the illumination lamps, the control mode has relatively long time delay, traffic accidents can not be caused on the relevant road, and the road side illumination lamps of all road sections are uniformly switched on, so that the control mode has one cut, namely, the road sections do not need illumination, and electric quantity is wasted.
Besides the lighting lamp switching control of the common road, the lighting lamps in the tunnel are mostly in a normally open state or a normally closed state, so that time factors of daytime alternation are not considered, visibility difference factors of special meteorological conditions are not considered, the lighting lamps in the tunnel are directly controlled to be normally on, electricity is excessively wasted when no driving is carried out, and traffic accidents can be possibly caused by the normally closed lighting lamps in the tunnel.
For this reason, see patent application with application number CN202310831860.9, it discloses an intelligent control monitoring system and control method for tunnel lighting, the control system includes cloud server, cascade camera unit and lamp control unit, the image processing monitoring module divides the image into at least one grid along the tunnel direction, judges in real time whether there is an image of the vehicle in each grid in the field of view of the image sensor, and sends the on-lamp instruction and off-lamp instruction to the lamp control unit and cloud server of the associated lighting lamp according to the judging result; meanwhile, images of the lighting lamp in the view field of the camera unit in the on and off states are compared, the on-off state of the lighting lamp is judged, and whether the lighting lamp works abnormally is judged by comparing the on-off state with a switching lamp instruction in the cloud server. The tunnel dimming device has the advantages that the lighting of the vehicle running light is realized, the dimming of the vehicle running light is realized, meanwhile, the lighting lamp image is acquired based on the camera, the lighting and extinguishing result is compared with the lighting lamp control instruction in the server, the abnormal condition of the lighting lamp is fed back in real time, and the driving safety of the tunnel is ensured.
However, in the above patent application, the control effect of the lamp is achieved by processing the image information, and multiple cameras are needed, and the processing of the image itself needs a long time, and in the patent application, the lighting lamp image is acquired based on the camera, and the lighting lamp on-off is judged by the gray value, the on-off result is compared with the lighting lamp control instruction in the server, the abnormal condition of the lighting lamp is fed back in real time, and further the driving safety of the tunnel is ensured.
Disclosure of Invention
The invention aims to provide an energy-saving control system and method for road traffic lighting in a tunnel with a lamp driven by a vehicle, which can realize energy-saving control of traffic lighting in the tunnel on the premise of low time delay.
The invention solves the technical problems and adopts the following technical scheme:
in one aspect, the present invention provides a light-driven in-tunnel road traffic lighting energy-saving control system, comprising:
the vehicle identification module is arranged at a first position which is a first distance away from the entrance of the control road section to be illuminated, and is used for identifying whether a vehicle passes through the first position or not and identifying vehicle type information;
the first vehicle information acquisition module is arranged at a second position between the entrance of the control road section to be illuminated and the first position and is used for acquiring first position lane information, first vehicle running direction information and first vehicle speed information when the vehicle passes through the second position;
the second vehicle information acquisition module is arranged at a third position between the entrance of the control road section to be illuminated and the second position and is used for acquiring second position lane information, second vehicle running direction information and second vehicle speed information of the vehicle passing through the third position;
The lane acquisition module is used for acquiring lane information in the control road section to be illuminated, wherein the lane information in the control road section to be illuminated comprises the number of lanes and the direction information of each lane;
the road traffic lighting energy-saving control module comprises lamps which are sequentially arranged from an entrance to an exit of a control road section to be lighted, one radar sensor arranged in each lamp, and a controller which is respectively connected with each lamp and each radar sensor, wherein the controller is used for receiving the identified vehicle type information as a normal running vehicle, the first vehicle information acquisition module is consistent with the second vehicle information acquisition module, when the first radar sensor at the entrance of the control road section to be lighted detects that the vehicle enters, the lamps in a specified distance in front of the vehicle are controlled to be started, and when the second radar sensor detects that the vehicle is lighted, the lamps in the specified distance in front of the vehicle are controlled to be started until the last lamp in the specified distance in front of the vehicle is the last lamp in the control road section to be lighted.
As further optimization, the vehicle identification module is connected with the road traffic lighting energy-saving control module, is in a normally open state, and is used for identifying whether a vehicle passes through the first position in real time;
When a vehicle passes through, identifying vehicle type information, informing the road traffic lighting energy-saving control module of the vehicle type information, judging whether a maintenance instruction of a traffic control system is received by the road traffic lighting energy-saving control module when the vehicle type information is a maintenance vehicle of a to-be-lighted control road section, controlling all lamps in the to-be-lighted control road section to be always on if the maintenance instruction is received, and regarding the maintenance vehicle of the to-be-lighted control road section as a normal running vehicle if the maintenance instruction is not received;
the vehicle category information includes a normal running vehicle and a maintenance vehicle for a control section to be illuminated.
As a further optimization, the first vehicle information acquisition module and the second vehicle information acquisition module are both connected with the road traffic lighting energy-saving control module and are in a closed state before receiving an opening instruction sent by the road traffic lighting energy-saving control module;
when the road traffic lighting energy-saving control module receives the vehicle type information notified by the vehicle identification module and the vehicle type information is a normal running vehicle, the first vehicle information acquisition module and the second vehicle information acquisition module are controlled to start working.
As further optimization, when the first vehicle information acquisition module and the second vehicle information acquisition module start to work and then drive into the second position, the first vehicle information acquisition module acquires first position lane information, first vehicle driving direction information and first vehicle speed information when the vehicle passes through the second position, and transmits the first position lane information, the first vehicle driving direction information and the first vehicle speed information to the road traffic lighting energy-saving control module, and when the vehicle normally drives into the third position, the second vehicle information acquisition module acquires second position lane information, second vehicle driving direction information and second vehicle speed information when the vehicle passes through the third position, and transmits the second position lane information, the second vehicle driving direction information and the second vehicle speed information to the road traffic lighting energy-saving control module;
The road traffic lighting energy-saving control module compares the information transmitted by the first vehicle information acquisition module and the second vehicle information acquisition module, and if the first lane information is consistent with the second lane information, the first vehicle driving direction information is consistent with the second vehicle driving direction information, and the first vehicle speed information and the second vehicle speed information are within a specified range, the lane acquisition module is informed to start working.
As a further optimization, the road traffic lighting energy-saving control module is provided with a vehicle speed limit value of a road section to be controlled by lighting, when the vehicle type information identified by the vehicle identification module is a normal running vehicle, the road traffic lighting energy-saving control module compares the first vehicle speed information with the second vehicle speed information, and if the phase difference is within a specified range and the first vehicle speed information and the second vehicle speed information are below the vehicle speed limit value, the lane acquisition module is informed to start working.
As further optimization, the lane acquisition module is in a closed state initially, starts working when the lane acquisition module receives a starting working notification, acquires lane information in a control section to be illuminated, and transmits the lane information to the road traffic illumination energy-saving control module.
As further optimization, when the lane acquisition module starts to work, the traffic control system sends the lane information in the road traffic illumination energy-saving control module to be illuminated and controlled, and forwards the lane information to the lane acquisition module.
As further optimization, the road traffic lighting energy-saving control module comprises a lamp control master station and a plurality of distributed lamp control slave stations, wherein the lamp control master station comprises a master controller and a plurality of lamps, a radar sensor is arranged in each lamp, the master controller is respectively connected with each lamp and each radar sensor of the lamp control master station, each distributed lamp control slave station comprises a slave controller and a plurality of lamps, a radar sensor is arranged in each lamp, and the slave controller is respectively connected with each lamp and each radar sensor of the current distributed lamp control slave station;
the first lamp of the lamp control main station is arranged at the entrance of the to-be-illuminated control road section, the other lamps are sequentially arranged at equal intervals along the exit direction of the to-be-illuminated control road section according to a first interval distance, the first lamp of the lamp control auxiliary station is arranged at a second interval distance from the last lamp of the lamp control main station along the exit direction of the to-be-illuminated control road section, the other lamps are sequentially arranged at equal intervals along the exit direction of the to-be-illuminated control road section according to a second interval distance, and the last lamp of the lamp control auxiliary station is arranged at the exit of the to-be-illuminated control road section;
The lamp control master station comprises a master controller, a slave controller, a lamp control slave station, an industrial Ethernet PROFIENT field bus and an industrial Ethernet PROFIENT field bus.
As a further optimization, the vehicle identification module is a laser sensor, and the first vehicle information acquisition module and the second vehicle information acquisition module are displacement sensors.
On the other hand, the invention also provides a lamp-following energy-saving control method for road traffic lighting in the tunnel, which is applied to the lamp-following energy-saving control system for road traffic lighting in the tunnel, and comprises the following steps:
the vehicle identification module identifies whether a vehicle passes through a first position or not and identifies vehicle type information;
the first vehicle information acquisition module acquires first location lane information, first vehicle driving direction information and first vehicle speed information when the vehicle passes through the second position;
The second vehicle information acquisition module acquires second position lane information, second vehicle running direction information and second vehicle speed information of the vehicle passing through a third position;
the lane acquisition module acquires lane information in a control section to be illuminated;
the road traffic lighting energy-saving control module controls a lamp in a specified distance in front of a vehicle to be started when the controller receives the identified vehicle type information as a normal running vehicle, the information of the first vehicle information acquisition module is consistent with that of the second vehicle information acquisition module, and a first radar sensor at an entrance of a control road section to be lighted detects that the vehicle enters;
when the second radar sensor detects the vehicle, the lamp of the first radar sensor is turned off, and the lamp in front of the vehicle is controlled to be turned on until the last lamp in front of the vehicle is the last lamp in the control section to be illuminated.
The beneficial effects of the invention are as follows: according to the system and the method for the road traffic lighting energy-saving control in the tunnel, the vehicle type of the vehicle to be driven into can be judged before the vehicle is driven into the road section to be controlled by lighting, different control strategies are implemented on the lighting lamp in the road section to be controlled by lighting through the vehicle type, firstly, the vehicle identification module identifies whether the vehicle passes through the first position or not and identifies the vehicle type information, and when the vehicle passes through the first position, the vehicle type needs to be identified.
In the invention, when the vehicle identification module identifies whether a vehicle passes through a first position and identifies the type information of the vehicle, the first vehicle information acquisition module is controlled to acquire first position lane information, first vehicle driving direction information and first vehicle speed information when the vehicle passes through a second position, and the second vehicle information acquisition module is controlled to acquire second position lane information, second vehicle driving direction information and second vehicle speed information when the vehicle passes through a third position, so that the road traffic illumination energy-saving control module performs information comparison, and then the lane acquisition module acquires lane information in a road section to be illuminated and controlled, because the road section before entering a tunnel is generally solid line and has limited speed identification, in order to ensure that the vehicle normally runs in a specified lane and control the vehicle speed, the control strategy of the radar sensor in the road section to be illuminated is triggered after the confirmation of the information of the lane, the information of the running direction of the vehicle and the information of the speed of the vehicle is required to be confirmed, that is, in the invention, the road traffic lighting energy-saving control module receives the identified information of the type of the vehicle as a normal running vehicle from the controller, when the first radar sensor at the entrance of the road section to be illuminated detects the entrance of the vehicle, the first radar sensor is controlled to be turned on, and when the second radar sensor detects the vehicle, the first radar sensor is turned off, and the lamp in the front of the vehicle is controlled to be turned on until the last lamp in the front of the vehicle is the last lamp in the road section to be illuminated, the signal processing process of the whole control process is in the millisecond level, and the time delay is low.
Therefore, the invention can ensure the energy-saving and accurate control of the illuminating lamp in the to-be-illuminated control road section, breaks through the traditional switch control mode and has lower time delay.
Drawings
Fig. 1 is a flowchart of a method for controlling energy saving of road traffic lighting in a tunnel with lamp following in embodiment 3 of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Example 1
The embodiment provides a road traffic lighting energy-saving control system in tunnel of lamp follow-up, includes: the system comprises a vehicle identification module, a first vehicle information acquisition module, a second vehicle information acquisition module, a lane acquisition module and a road traffic lighting energy-saving control module.
In the above system, the vehicle identification module is disposed at a first position away from a first distance before the entrance of the control road section to be illuminated, and is used for identifying whether a vehicle passes through the first position and identifying vehicle type information, where the first distance can be set according to an actual road condition before the entrance of the control road section to be illuminated, in general, the front of the entrance of the control road section to be illuminated is a unidirectional solid line, in order to ensure a low delay requirement of information transmission after identification, the vehicle identification module can be disposed within the solid line distance, of course, the vehicle identification module can also be disposed outside the solid line distance, in order to reduce transmission delay and can realize vehicle identification, in this embodiment, the first distance can be set to 300 meters, so in order to realize data transmission between the vehicle identification module and the road traffic illumination energy-saving control module, the vehicle identification module needs to be connected with the road traffic illumination energy-saving control module, in order to enable the vehicle identification module to sense in real time whether a vehicle passes through, the vehicle identification module needs to be in a normally open state, and in real time identify whether a vehicle passes through the first position.
When a vehicle passes through, identifying vehicle type information, informing the road traffic lighting energy-saving control module of the vehicle type information, judging whether a maintenance instruction of a traffic control system is received by the road traffic lighting energy-saving control module when the vehicle type information is a maintenance vehicle of a to-be-lighted control road section, controlling all lamps in the to-be-lighted control road section to be always on if the maintenance instruction is received, and regarding the maintenance vehicle of the to-be-lighted control road section as a normal running vehicle if the maintenance instruction is not received; in this embodiment, in order to enable identification of the vehicle and not perform responsible data conversion and data processing, the vehicle identification module may preferably use a laser sensor, and in order to facilitate normal maintenance of the road section to be illuminated, timely send timely road condition information to each navigation platform.
In this embodiment, for such classification of the traveling vehicles, normal maintenance work of maintaining the vehicles can be assisted, and the difficulty in identifying the vehicle identification module can be greatly reduced.
With the first vehicle information acquisition module and the second vehicle information acquisition module in the present embodiment, the first vehicle information acquisition module is disposed at a second position between the entrance of the control section to be illuminated and the first position for acquiring the first localized lane information, the first vehicle traveling direction information, and the first vehicle speed information when the vehicle passes through the second position, and the second vehicle information acquisition module is disposed at a third position between the entrance of the control section to be illuminated and the second position for acquiring the second localized lane information, the second vehicle traveling direction information, and the second vehicle speed information when the vehicle passes through the third position.
In this embodiment, the first vehicle information acquisition module and the second vehicle information acquisition module are displacement sensors, so as to shorten the communication distance between the lane information, the vehicle driving direction information and the vehicle speed information, which are acquired and then transmitted to the road traffic lighting energy-saving control module, and further perform rapid information comparison, so that the second position and the third position in this embodiment can be both set in the solid line distance before the entrance of the to-be-lighted control road section, while the second position in this embodiment can be set at 200 meters before the entrance of the to-be-lighted control road section, and the third position can be set at 100 meters before the entrance of the to-be-lighted control road section.
For the vehicle identification module, when the vehicle identification module is also arranged in the solid line distance from the entrance of the control road section to be illuminated, the vehicle identification module is invariable in road for the normal running vehicle, so that the lane information, the vehicle running direction information and the vehicle speed information of the vehicles at the second position and the third position can be detected through the displacement sensor, and the vehicle identification module is transmitted to the road traffic illumination energy-saving control module for information comparison after detection is completed.
It should be noted that, in this embodiment, in order to compare the information acquired by the first vehicle information acquiring module and the second vehicle information acquiring module, the first vehicle information acquiring module and the second vehicle information acquiring module need to be connected with the road traffic lighting energy-saving control module, and are in a closed state before the opening instruction sent by the road traffic lighting energy-saving control module is not received, and only when the road traffic lighting energy-saving control module receives the vehicle type information notified by the vehicle identifying module and the vehicle type information is a normal driving vehicle, the first vehicle information acquiring module and the second vehicle information acquiring module are controlled to start working, so that the working time of the two modules can be saved.
When the first vehicle information acquisition module and the second vehicle information acquisition module start to work and then the normally running vehicle drives into the second position, the first vehicle information acquisition module acquires first position lane information, first vehicle running direction information and first vehicle speed information when the vehicle passes through the second position and transmits the first position lane information, the first vehicle running direction information and the first vehicle speed information to the road traffic lighting energy-saving control module, and when the normally running vehicle drives into the third position, the second vehicle information acquisition module acquires second position lane information, second vehicle running direction information and second vehicle speed information when the vehicle passes through the third position and transmits the second position lane information, the second vehicle running direction information and the second vehicle speed information to the road traffic lighting energy-saving control module;
the road traffic lighting energy-saving control module compares the information transmitted by the first vehicle information acquisition module and the second vehicle information acquisition module, if the first lane information is consistent with the second lane information, the first vehicle driving direction information is consistent with the second vehicle driving direction information, and when the first vehicle speed information and the second vehicle speed information are different in a specified range, the lane acquisition module is informed to start working, generally, the first lane information and the second lane information are consistent due to the position limitation of the vehicle identification module, the first vehicle information acquisition module and the second information acquisition module, the first vehicle driving direction information and the second vehicle driving direction information are consistent, and the first vehicle speed information and the second vehicle speed information are different in the specified range.
In practical application, the road traffic lighting energy-saving control module is provided with a vehicle speed limit value of a road section to be controlled, when the vehicle type information identified by the vehicle identification module is a normal running vehicle, the road traffic lighting energy-saving control module compares the first vehicle speed information with the second vehicle speed information, and if the phase difference is within a specified range and the first vehicle speed information and the second vehicle speed information are below the vehicle speed limit value, the lane acquisition module is informed to start working.
Here, the predetermined range should be such that the first vehicle speed information and the second vehicle speed information are each equal to or lower than the speed limit value, as the case may be.
For the lane acquisition module, it is used for obtaining the lane information in the control highway section that waits to throw light on, the lane information in the control highway section that waits to throw light on includes the lane quantity and the direction information of each lane, in this embodiment, in order to avoid frequent triggering, need guarantee that the lane acquisition module is in the off state in the initial stage, start work when the lane acquisition module received the start work notice, acquire the lane information in the control highway section that waits to throw light on, and transmit to the road traffic energy-saving control module, when the lane acquisition module starts work, send the lane information in the control highway section that waits to throw light on to the road traffic energy-saving control module through the traffic control system, and transmit to the lane acquisition module.
The road traffic lighting energy-saving control module comprises lamps which are sequentially arranged from an entrance to an exit of a control road section to be lighted, one radar sensor arranged in each lamp, and a controller which is respectively connected with each lamp and each radar sensor, wherein the controller is used for receiving the identified vehicle type information as a normal running vehicle, the first vehicle information acquisition module and the second vehicle information acquisition module are consistent in information, when the first radar sensor at the entrance of the control road section to be lighted detects that the vehicle enters, the lamps in a specified distance in front of the vehicle are controlled to be started, and when the second radar sensor detects that the vehicle is lighted, the lamps in the specified distance in front of the vehicle are controlled to be started until the last lamp in the specified distance in front of the vehicle is the last lamp in the control road section to be lighted.
In this embodiment, in order to cope with the overlong length of some control road sections to be illuminated, so that the data transmission delay between each module and the road traffic illumination control module is longer, in this embodiment, the road traffic illumination energy-saving control module may include a lamp control master station and a plurality of distributed lamp control slave stations, the lamp control master station includes a master controller and a plurality of lamps, a radar sensor is disposed in each lamp, the master controller is connected with each lamp and each radar sensor of the lamp control master station, each distributed lamp control slave station includes a slave controller and a plurality of lamps, a radar sensor is disposed in each lamp, and the slave controller is connected with each lamp and each radar sensor of the current distributed lamp control slave station.
In order to enable distributed lamp lighting control, in this embodiment, a first lamp of the lamp control master station is disposed at an entrance of a to-be-lighted control road section, other lamps are sequentially disposed at equal intervals along an exit direction of the to-be-lighted control road section according to a first interval distance, a first lamp of the lamp control slave station is disposed at a second interval distance from a last lamp of the lamp control master station along the exit direction of the to-be-lighted control road section, and other lamps are sequentially disposed at equal intervals along the exit direction of the to-be-lighted control road section according to the second interval distance, and a last lamp of the lamp control slave station is disposed at the exit of the to-be-lighted control road section; here, the first and second separation distances are freely set depending on the length of the control section to be illuminated, and may be set to be greater than the normal vehicle length, 10 meters, or 15 meters in order to avoid frequent detection.
In practical application, the lamps of the lamp control master station are all connected with the master controller through the industrial Ethernet PROFIENT field bus, the lamps of the lamp control slave station are all connected with the slave controller through the industrial Ethernet PROFIENT field bus, the master controller is connected with the slave controller of the lamp control slave station, which is closest to the master controller, through the industrial Ethernet PROFIENT field bus, and the adjacent slave controllers are connected through the industrial Ethernet PROFIENT field bus.
The signal acquisition of the radar sensor is mainly considered, the sensor does not support field bus communication products at present, and the sensor supports a MODBUS-RTU485 bus communication mode at most, the communication mode is accessed through a site polling mode, the delay is very high, the running speed of a vehicle in practical application is generally very fast, if the sensor signal cannot be acquired in real time, the control output cannot respond in real time, the industrial field bus and module communication can be adopted in the embodiment, the sensor signal is directly input into the module through a signal wire, and basically the response time is about 100mS, so that the communication transmission delay can be greatly reduced.
Example 2
Based on embodiment 1, the embodiment comprehensively considers the control effect and the system cost, an industrial grade programmable logic controller Siemens smart-sr60 is selected, a digital IO expansion module is added, 8 distributed IO slave stations can be hung at most through an industrial Ethernet PROFIENT field bus, each slave station is respectively hung with 4 16-channel digital quantity input modules and 4 16-channel digital quantity output modules through an optical fiber interface module, millisecond-level time response can be completely realized through signal acquisition and control output, the whole distributed IO slave station system can drive the number of lamps to be 64 x 8 = 512, the controller body can output at least 80 loops, therefore, the whole control system can drive 512+80 = 592 lamps, each lamp is calculated according to an 8-15 m distance, and therefore, the theoretical control distance can reach 4736-8880 m; the main controller is connected with the distributed IO slave stations through optical fibers, the single-end communication distance can reach 2KM, and if the single-end communication distance exceeds 2KM, the single-end communication distance continues to extend forwards to the tail end slave stations through the optical fiber relay amplifier.
Each lamp is internally provided with a radar induction sensor, passive switching value is output, radar induction output signals are directly input into the regional input module end through a signal wire, and due to the adoption of a distributed OI bus architecture, construction cables are greatly reduced, and due to the adoption of an industrial Ethernet PROFIENT communication protocol, real-time response can be achieved, so that safe running of a vehicle is ensured.
When the vehicle does not enter the road section, all lamps output low brightness, when the vehicle enters the road section, the first lamp radar sensor detects signals, the lamps in the distance of 100-200 meters in front of the vehicle are immediately output (the specific distance is determined according to the actual distance between the lamps), when the vehicle leaves the first lamp and enters the second lamp, the second lamp radar sensor detects signals, the first lamp is lowered to low brightness, and meanwhile, one lamp is turned on forwards, and the like, so that the illumination in the distance set in front of the vehicle is always kept always at high brightness.
The system can be integrated into an upper computer and the Internet of things, a plurality of subroutines are arranged in the controller, and according to the user requirements, function selection buttons corresponding to 10 lamps-20 lamps can be called to be lightened in front of a vehicle, and remote monitoring can be easily realized through a mobile phone APP and a PC.
Example 3
On the basis of embodiment 1, the present embodiment provides a light-driven energy-saving control method for road traffic lighting in a tunnel, which is applied to the light-driven energy-saving control system for road traffic lighting in a tunnel, and the flowchart is shown in fig. 1, wherein the method comprises the following steps:
s1, a vehicle identification module identifies whether a vehicle passes through a first position or not, and identifies vehicle type information;
s2, a first vehicle information acquisition module acquires first position lane information, first vehicle running direction information and first vehicle speed information when a vehicle passes through a second position;
s3, a second vehicle information acquisition module acquires second position lane information, second vehicle running direction information and second vehicle speed information of the vehicle passing through a third position;
s4, a lane acquisition module acquires lane information in the control road section to be illuminated;
s5, when the controller receives the identified vehicle type information as a normal running vehicle, the information of the first vehicle information acquisition module is consistent with that of the second vehicle information acquisition module, and a first radar sensor at the entrance of a road section to be illuminated is used for controlling the lamp in a specified distance in front of the vehicle to be turned on;
And S6, when the second radar sensor detects the vehicle, the lamp where the first radar sensor is positioned is turned off, and the lamp within a specified distance in front of the vehicle is controlled to be turned on until the last lamp within the specified distance in front of the vehicle is the last lamp in the control road section to be illuminated.
As can be seen from the description of embodiment 1, the related application scenario and the working principle of the present embodiment are the same as those of embodiment 1, and therefore will not be described again.
Additionally, in practical application conditions, traffic jam is generally not existed in the to-be-illuminated control road section, but traffic jam may exist in the first position, the second position, the third position and the entrance of the to-be-illuminated control road section before the to-be-illuminated control road section, and in the to-be-illuminated control road section, the above road traffic illumination energy saving control process may increase system burden, and for such a case, it may be defined that road congestion information is sent to the road traffic illumination energy saving control module through the traffic control system, under such conditions, none of the vehicle identification module, the first vehicle information acquisition module, the second vehicle information acquisition module and the lane acquisition module operates, and the lamps in the to-be-illuminated control road section may be always on or off depending on the weather condition.
For the phenomenon of following vehicles, namely, when the vehicles are all vehicles which normally run, and in a control road section to be illuminated, if the distance between two vehicles is smaller than the distance between two adjacent lamps, for example, the first two lamps which are located at the entrance of the control road section to be illuminated are located, and two adjacent vehicles enter, when a first vehicle enters, the lamps in the front set distance are started, the first vehicle enters the road section between the two lamps, the front vehicle does not reach the second lamp, and the rear vehicle reaches the first lamp, the first lamp is started according to the embodiment, at the moment, the on-off of the first lamp can be adjusted according to the weather condition, if the weather condition is bad, the on-off of the first lamp is controlled, if the weather condition is good, the on-off of the first lamp is not started, and if the weather condition is good, the on-off of the first lamp is not started; when the front vehicle does not reach the second lamp and the rear vehicle has reached the first lamp, then the number of lamps that should be lit in front of the vehicle should be consistent at this time; when the front vehicle arrives at the road section under the second lamp, the rear vehicle is very close to the front vehicle, and the first lamp is already passed, at this time, the lamps which should be lighted within the forward prescribed distance of the front vehicle overlap with the lamps which should be lighted within the forward prescribed distance of the rear vehicle, and at this time, the control is performed based on the number of the lamps which should be lighted in front.
The traffic control system may consider the traffic control system as a congested road section, and under the congested condition, the lamp control method under the congested condition is the same.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An energy-saving control system for road traffic lighting in a tunnel with a lamp being driven by a vehicle, which is characterized by comprising:
the vehicle identification module is arranged at a first position which is a first distance away from the entrance of the control road section to be illuminated, and is used for identifying whether a vehicle passes through the first position or not and identifying vehicle type information;
the first vehicle information acquisition module is arranged at a second position between the entrance of the control road section to be illuminated and the first position and is used for acquiring first position lane information, first vehicle running direction information and first vehicle speed information when the vehicle passes through the second position;
the second vehicle information acquisition module is arranged at a third position between the entrance of the control road section to be illuminated and the second position and is used for acquiring second position lane information, second vehicle running direction information and second vehicle speed information of the vehicle passing through the third position;
The lane acquisition module is used for acquiring lane information in the control road section to be illuminated, wherein the lane information in the control road section to be illuminated comprises the number of lanes and the direction information of each lane;
the road traffic lighting energy-saving control module comprises lamps which are sequentially arranged from an entrance to an exit of a control road section to be lighted, one radar sensor arranged in each lamp, and a controller which is respectively connected with each lamp and each radar sensor, wherein the controller is used for receiving the identified vehicle type information as a normal running vehicle, the first vehicle information acquisition module is consistent with the second vehicle information acquisition module, when the first radar sensor at the entrance of the control road section to be lighted detects that the vehicle enters, the lamps in a specified distance in front of the vehicle are controlled to be started, and when the second radar sensor detects that the vehicle is lighted, the lamps in the specified distance in front of the vehicle are controlled to be started until the last lamp in the specified distance in front of the vehicle is the last lamp in the control road section to be lighted.
2. The energy-saving control system for road traffic lighting in a tunnel with lamp follower as defined in claim 1, wherein the vehicle identification module is connected with the energy-saving control module for road traffic lighting, is in a normally open state, and is used for identifying whether a vehicle passes through the first position in real time;
When a vehicle passes through, identifying vehicle type information, informing the road traffic lighting energy-saving control module of the vehicle type information, judging whether a maintenance instruction of a traffic control system is received by the road traffic lighting energy-saving control module when the vehicle type information is a maintenance vehicle of a to-be-lighted control road section, controlling all lamps in the to-be-lighted control road section to be always on if the maintenance instruction is received, and regarding the maintenance vehicle of the to-be-lighted control road section as a normal running vehicle if the maintenance instruction is not received;
the vehicle category information includes a normal running vehicle and a maintenance vehicle for a control section to be illuminated.
3. The light-driven in-tunnel road traffic lighting energy-saving control system according to claim 1, wherein the first vehicle information acquisition module and the second vehicle information acquisition module are both connected with the road traffic lighting energy-saving control module and are both in an off state before receiving an on command sent by the road traffic lighting energy-saving control module;
when the road traffic lighting energy-saving control module receives the vehicle type information notified by the vehicle identification module and the vehicle type information is a normal running vehicle, the first vehicle information acquisition module and the second vehicle information acquisition module are controlled to start working.
4. The light-following in-tunnel road traffic lighting energy-saving control system according to claim 3, wherein when the first vehicle information acquisition module and the second vehicle information acquisition module start to operate and a normally traveling vehicle is driven into the second position, the first vehicle information acquisition module acquires first location lane information, first vehicle traveling direction information and first vehicle speed information when the vehicle passes through the second position and transmits the first location lane information, the first vehicle traveling direction information and the first vehicle speed information to the road traffic lighting energy-saving control module, and when the normally traveling vehicle is driven into the third position, the second vehicle information acquisition module acquires second location lane information, second vehicle traveling direction information and second vehicle speed information when the vehicle passes through the third position and transmits the second location lane information, the second vehicle traveling direction information and the second vehicle speed information to the road traffic lighting energy-saving control module;
the road traffic lighting energy-saving control module compares the information transmitted by the first vehicle information acquisition module and the second vehicle information acquisition module, and if the first lane information is consistent with the second lane information, the first vehicle driving direction information is consistent with the second vehicle driving direction information, and the first vehicle speed information and the second vehicle speed information are within a specified range, the lane acquisition module is informed to start working.
5. The energy-saving control system for road traffic lighting in a tunnel with lamp follower as defined in claim 4, wherein the energy-saving control module for road traffic lighting is provided with a speed limit value of a road section to be controlled by lighting, and when the vehicle type information identified by the vehicle identification module is a normal running vehicle, the energy-saving control module for road traffic lighting compares the first vehicle speed information with the second vehicle speed information, and if the difference is within a predetermined range and both the first vehicle speed information and the second vehicle speed information are below the speed limit value, the lane acquisition module is informed to start operation.
6. The energy-saving control system for road traffic lighting in a tunnel with lamp follow-up according to claim 4, wherein the lane acquisition module is in an off state initially, starts working when the lane acquisition module receives a start working notification, acquires lane information in a control section to be lighted, and transmits the lane information to the energy-saving control module for road traffic lighting.
7. The energy-saving control system for road traffic lighting in a tunnel with lamp turning on as claimed in claim 6, wherein when the lane acquisition module is started up, the traffic control system sends the lane information in the section to be controlled by the lighting to the lane acquisition module.
8. The energy-saving control system for road traffic lighting in a tunnel with lamp follow-up according to claim 1, wherein the energy-saving control module for road traffic lighting comprises a lamp control master station and a plurality of distributed lamp control slave stations, the lamp control master station comprises a master controller and a plurality of lamps, a radar sensor is arranged in each lamp, the master controller is respectively connected with each lamp and each radar sensor of the lamp control master station, each distributed lamp control slave station comprises a slave controller and a plurality of lamps, a radar sensor is arranged in each lamp, and the slave controller is respectively connected with each lamp and each radar sensor of the current distributed lamp control slave station;
the first lamp of the lamp control main station is arranged at the entrance of the to-be-illuminated control road section, the other lamps are sequentially arranged at equal intervals along the exit direction of the to-be-illuminated control road section according to a first interval distance, the first lamp of the lamp control auxiliary station is arranged at a second interval distance from the last lamp of the lamp control main station along the exit direction of the to-be-illuminated control road section, the other lamps are sequentially arranged at equal intervals along the exit direction of the to-be-illuminated control road section according to a second interval distance, and the last lamp of the lamp control auxiliary station is arranged at the exit of the to-be-illuminated control road section;
The lamp control master station comprises a master controller, a slave controller, a lamp control slave station, an industrial Ethernet PROFIENT field bus and an industrial Ethernet PROFIENT field bus.
9. The light-driven in-tunnel road traffic lighting energy-saving control system according to any one of claims 1 to 8, wherein the vehicle identification module is a laser sensor, and the first vehicle information acquisition module and the second vehicle information acquisition module are displacement sensors.
10. A lamp-follower-type energy-saving control method for road traffic lighting in a tunnel, which is applied to the lamp-follower-type energy-saving control system for road traffic lighting in a tunnel as claimed in any one of claims 1 to 9, and is characterized by comprising the following steps:
the vehicle identification module identifies whether a vehicle passes through a first position or not and identifies vehicle type information;
the first vehicle information acquisition module acquires first location lane information, first vehicle driving direction information and first vehicle speed information when the vehicle passes through the second position;
The second vehicle information acquisition module acquires second position lane information, second vehicle running direction information and second vehicle speed information of the vehicle passing through a third position;
the lane acquisition module acquires lane information in a control section to be illuminated;
the road traffic lighting energy-saving control module controls a lamp in a specified distance in front of a vehicle to be started when the controller receives the identified vehicle type information as a normal running vehicle, the information of the first vehicle information acquisition module is consistent with that of the second vehicle information acquisition module, and a first radar sensor at an entrance of a control road section to be lighted detects that the vehicle enters;
when the second radar sensor detects the vehicle, the lamp of the first radar sensor is turned off, and the lamp in front of the vehicle is controlled to be turned on until the last lamp in front of the vehicle is the last lamp in the control section to be illuminated.
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