CN210534989U - Roadside cooperative guidance system for trunk line bidirectional green wave - Google Patents
Roadside cooperative guidance system for trunk line bidirectional green wave Download PDFInfo
- Publication number
- CN210534989U CN210534989U CN201920470100.9U CN201920470100U CN210534989U CN 210534989 U CN210534989 U CN 210534989U CN 201920470100 U CN201920470100 U CN 201920470100U CN 210534989 U CN210534989 U CN 210534989U
- Authority
- CN
- China
- Prior art keywords
- subunit
- signal
- signal lamp
- green wave
- intersection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Traffic Control Systems (AREA)
Abstract
The utility model discloses a roadside cooperative guidance system for a main line bidirectional green wave, which comprises a signal lamp bracket, a signal lamp, a video detection device, a control box and an industrial personal computer; the control unit is composed of a set number of signal lamps, the signal lamps are fixedly arranged on the signal lamp supports, and the video detection device is arranged on the tail end signal lamp support of each of the stabilizing subunit and the terminal subunit; the control box is arranged at the appointed position of a terminal intersection of the control unit and is externally connected with a signal control system for controlling traffic signals and an intersection signal lamp; the industrial personal computer is arranged in the control box and corresponds to the starting subunit, the stabilizing subunit and the destination subunit in each control unit, and a starting subunit controller, a stabilizing subunit controller and a destination subunit controller are arranged in the industrial personal computer; the utility model discloses avoided the trackside promptly in coordination with the hysteresis quality of guide scheme, also taken effective measure to improve the green lamp utilization ratio in crossing, increased the vehicle traffic volume in each crossing of main line.
Description
Technical Field
The utility model belongs to the technical field of traffic management, concretely relates to trackside bootstrap system in coordination of two-way green wave of trunk.
Background
Green wave control is an effective means for improving the traffic efficiency of the trunk line, and the green wave implementation effect is shown as follows: when the vehicle enters the green wave band and runs according to the green wave speed, the vehicle can pass through each intersection under the coordination control of the trunk line without stopping. Due to the lack of information interaction between the control system and the driver, the specific time period of the green wave band is unknown to the driver, so that the vehicle cannot enter the green wave band or is difficult to maintain in the green wave band, and the green wave control effect is difficult to exert. Vehicle guidance is one of the effective methods to solve this real problem.
In the prior art, there are various solutions, such as "a method for guiding vehicles at a traffic intersection" disclosed in CN101719318A, in which a colored guiding light is set on the ground of a lane at the intersection, and the colored section of the guiding light is controlled to move at a certain speed, so as to achieve the purpose of guiding the vehicle speed when the vehicle passes through the intersection; CN102682611A, CN103310639A, "linear distribution dynamic traffic signal system", discloses a similar road section guiding device, which realizes synchronization between color ribbon and intersection signal lamp by configuring color region of moving color ribbon and display and ending time.
The prior art scheme is mainly to synchronize the control scheme of the intersection signal lamps to the road sections, but neglects the mutual feedback relationship existing between the road section speed guidance and the vehicle passing: the implementation of vehicle guidance has influence on the vehicle passing condition of the main line section and also has influence on the reliability of guidance measures; for example, drivers observe that the guiding lights in the green wave band mostly adjust the speed of the vehicle to converge in the area, but if the convergence is excessive, the vehicle may be decelerated due to the bearing capacity of the entrance way when entering the entrance way, and part of the vehicle may be "squeezed out" of the green wave band, so that the effect of the green wave guiding device is affected, and meanwhile, the potential safety hazard caused by the convergence also exists. Guidance is not equivalent to control, and in addition to uncertainty in road traffic, vehicle speed guidance for a road segment is obviously not capable of achieving the best guidance effect if only implemented according to a relatively stable signal control scheme.
In the prior art, a solution (CN101719318A [0010] [0015]) for automatically adjusting the moving speed of the ribbon according to the traffic flow change rule of a downstream intersection exists; in the field, the intersection traffic flow is a statistical value of intersection demand convergence conditions within a certain time interval, the time interval is generally not equal to 30 s-15 min, in the implementation process, a long interval inevitably brings hysteresis of guidance information (the vehicle convergence conditions of the intersection at the same moment and the vehicle convergence conditions in driving on a road section cannot be equivalent, so that the generated guidance scheme cannot be completely suitable for the driving vehicles), and if a short-time (such as 30s or 1min) interval is adopted to ensure real-time performance, the system stability defect is brought due to excessively high updating frequency.
Therefore, the problem of mutual feedback between green wave guidance and vehicle traffic needs to be solved on the premise of ensuring the system stability and the real-time performance of the guidance scheme, so that the green wave guidance is more effective. On the other hand, for the problem that the bidirectional green wave driving according to the green wave band causes low utilization rate of green at the intersection, a corresponding solution is also required to be found.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a roadside is bootstrap system in coordination of two-way green wave of trunk, this system implement on the highway section between two signal control intersections with the traffic guidance scheme in coordination of crossing signal control to the roadside signal lamp provides the indicating information of speed of traveling for the motor vehicle, when the vehicle was followed signal lamp area and is removed, can drive into the intersection in the green light time horizon, concrete technical scheme is as follows:
dry type food containerRoadside cooperative guidance system of line bidirectional green wave, which is applied to signalized intersections and any flow direction sjIn a control unit formed by road sections communicated with two intersections, each control unit consists of a starting subunit, a stabilizing subunit and an ending subunit; the system comprises a signal lamp bracket, a signal lamp, a video detection device, a control box and an industrial personal computer; wherein:
the control unit is composed of a set number of signal lamps, the signal lamps are fixedly arranged on the signal lamp supports, and the video detection device is arranged on the tail end signal lamp support of each of the stabilizing subunit and the terminal subunit; the control box is arranged at the appointed position of the terminal intersection of the control unit and is externally connected with a signal control system and an intersection annunciator for controlling the traffic signals of the intersection; the industrial personal computer is arranged in the control box and corresponds to the starting subunit, the stabilizing subunit and the destination subunit in each control unit, and a starting subunit controller, a stabilizing subunit controller and a destination subunit controller are arranged in the industrial personal computer.
The signal control system is used for sending a signal control scheme to the industrial personal computer; the video detection device is used for detecting real-time headway and sending the headway to the industrial personal computer through a network; the industrial personal computer receives a signal control scheme of a signal control system and the headway through a network, and respectively generates a guiding strategy and a scheme of a signal lamp in a starting subunit, a stabilizing subunit and a terminal subunit according to real-time traffic running conditions in each subunit, and the schemes of adjacent subunits are cooperated; the starting subunit controller is used for processing the starting time and the stopping time of each signal lamp in the starting subunit; the steady subunit controller is used for processing the starting and stopping time of each signal lamp in each steady subunit; the terminal subunit controller is used for processing the starting and stopping time of each signal lamp in each stable subunit; and the control box sends control instructions to the signal lamps through the control bus according to the starting and stopping time of the signal lamps in each control unit output by the starting subunit controller, the stabilizing subunit controller and the ending subunit controller, and all the signal lamps respond to the control instructions to execute opening and closing actions so as to realize cooperative green light guidance.
Further, the flow direction sjWhere j is 1 and 2, and represents the upward direction and the downward direction of the green wave in the trunk-designated link, respectively.
Furthermore, the signal lamp is composed of a lamp tube and a light-emitting component, the light-emitting component is installed on the signal lamp support through the lamp tube, and the light-emitting component emits colored light according to the control instruction.
Further, the signal control scheme comprises a period length, a coordinated phase green light duration, a non-coordinated phase green light duration, a designed green wave speed, a green wave bandwidth and a coordinated phase release start time in each period.
Furthermore, the signal lamp supports are arranged on the road sections of the control unit at equal intervals and are divided, and the angle of the direction of the signal lamp to the lane line is kept within the visual field range of the driver.
Furthermore, the signal lamp support, the signal lamp, the video detection device, the control box and the industrial personal computer are all connected with a power supply through a power supply circuit.
The utility model discloses a roadside cooperative guidance system of two-way green wave of trunk line, fully consider the polymerization of vehicle in the different regions in highway section, discrete characteristic and roadside guide and the current mutual feedback relation of vehicle, implement the roadside guide strategy of pertinence, in order to reach more reliable speed of a motor vehicle guide effect, it is concrete, implement the traffic guidance scheme in coordination with crossing signal control on the highway section between two signal control crossings, provide the indicating information of the speed of traveling for the motor vehicle with the roadside signal lamp, when the vehicle moves along with signal lamp area, can drive into the intersection in green light time range; compared with the prior art, the utility model discloses more meticulous, nimble, the mutual reaction between fully considering traffic guidance and the vehicle current behavior is presented the relation, through the discrete condition of vehicle on the video detection device dynamic monitoring highway section to the key parameter in the green wave guiding process of dynamic adjustment: the width of the lamp strip, the moving speed of the lamp strip and the flexible road side guiding scheme can guide vehicles running on a road section to keep reasonable passing order and improve the traffic volume of vehicles at the intersection.
Drawings
Fig. 1 is a block diagram of a flow chart of a roadside cooperative guidance system of a bidirectional green wave of a trunk line according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a structure of a single control unit according to an embodiment of the present invention;
FIG. 3 is a schematic top view of the position of the signal lamp on the trunk line in the embodiment of the present invention;
FIG. 4 is a schematic diagram of the connection between the signal lamp and the signal lamp bracket in the embodiment of the present invention;
fig. 5 is a schematic diagram of lawyer residuals processed by the endpoint subunit controller according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
Referring to fig. 1, in the embodiment of the present invention, a roadside cooperative guidance system of a trunk line bidirectional green wave is provided, and in combination with fig. 2, the system is applied to a signalized intersection adjacent to each other and any flow direction sjThe control unit is formed by connecting road sections of two intersections, and each control unit is formed by a starting subunit, a stabilizing subunit and an ending subunit; specifically, the roadside cooperative guidance system comprises a signal lamp bracket, a signal lamp, a video detection device, a control box and an industrial personal computer; wherein, in conjunction with FIGS. 3 and 4, in either direction s of the trunk linejThe control unit is composed of a set number of signal lamps; the signal lamp is fixedly arranged on the signal lamp support, the video detection device is arranged on the signal lamp support at the tail end of each steady subunit and each terminal subunit, the detection range of the video detection device arranged on the steady subunits covers the road sections of the downstream adjacent subunits, and the real-time road section head time distance in the downstream adjacent subunits is output; video installed on terminal subunitThe detection device can cover the flow direction s of the inlet passage of the downstream intersectionjA traffic lane for outputting the headway time; the control box is arranged at the appointed position of the terminal intersection of the control unit and is externally connected with a signal control system and an intersection annunciator for controlling traffic signals; the industrial personal computer is arranged in the control box and corresponds to the starting subunit, the stabilizing subunit and the destination subunit in each control unit, and a starting subunit controller, a stabilizing subunit controller and a destination subunit controller are arranged in the industrial personal computer.
In the embodiment of the invention, the control box is also connected with an external system and equipment consisting of a signal control system and a crossing annunciator, wherein the external system which is in communication connection with the signal control system and the control box is used for setting and controlling a signal control scheme on a road in an actual situation; meanwhile, the control box is also connected with the intersection annunciator, and the scheme execution time of the control signal of the specified road section in the actual situation can be obtained through the actual signal effective time of the intersection annunciator.
In the embodiment of the present invention, the flow direction sjJ is 1 and 2, which respectively represent the uplink direction and the downlink direction of the green wave in the trunk line designated road section; in the embodiment, the flow direction s is arbitrarily specifiedjThe starting point of the exit lane of the upstream intersection is the starting point of the control unit, and the starting point of the entrance lane of the downstream intersection is the ending point of the control unit; dividing a plurality of subunits in a control unit, wherein each subunit comprises a plurality of signal lamps; the first subunit of the control unit along the running direction is a starting subunit, a terminal subunit is defined according to the length of an inlet passage of a downstream intersection, the length of the terminal subunit is consistent with that of the inlet passage, and the rest subunits are all stable subunits; the signal lamp bracket, the signal lamp, the video detection device, the control box and the industrial personal computer are all connected with a power supply through a power supply circuit, and the power supply supplies energy to the whole system; preferably, the power supply circuit is an existing conventional circuit, and the description of the present invention is omitted here.
Preferably, the terminal subunit and the starting subunit in the embodiment are not provided with signal lamps
Referring to fig. 3 and 4 again, in the embodiment of the present invention, the signal lamp is composed of a lamp tube and a light emitting component, the light emitting component is installed on the signal lamp bracket through the lamp tube, and the light emitting component emits colored light according to the control instruction, preferably, the light emitting component may be an LED lamp bead, and the like, wherein the LED lamp bead may be a single color LED, a dual primary color LED, a tri-primary color LED lamp, and the like, and may emit light of various colors, specifically, the selection may be performed according to the actual situation, and the present invention is not limited and fixed herein; the signal lamp supports in each control unit are arranged at the road section division positions at equal intervals, and the angle between the direction of the signal lamp in each control unit and the lane line is kept in the visual field range of the driver, so that the driver can clearly receive the light signal of the signal lamp in the vehicle advancing process; in the embodiment, the light-emitting components on the same signal lamp bracket are connected by wires and are simultaneously started and extinguished according to a control instruction; and all the signal lamps are connected to the control box through a control bus.
In the embodiment, the signal control system is used for sending a signal control scheme to the industrial personal computer; the video detection device sends the head time interval to the industrial personal computer through the network; the industrial personal computer receives a signal control scheme and a head time distance of the signal control system through a network, and is in butt joint with an intersection annunciator corresponding to an intersection signal lamp at the end point of the control unit through the network according to the received signal control scheme and the head time distance, so that a signal timing scheme of the end point intersection is synchronized in real time; and carrying out time calibration on a starting subunit controller, a stabilizing subunit controller and an ending subunit controller contained in the industrial personal computer and an intersection annunciator to synchronize the instructions of the controllers with the time of the intersection traffic lights.
Preferably, the signal control scheme includes a period length, a coordinated phase green light duration, a non-coordinated phase green light duration, a designed green wave speed, a green wave bandwidth, and a coordinated phase release start time in each period.
In the embodiment of the invention, the starting subunit controller is used for processing the starting time and the stopping time of each signal lamp in the starting subunit; specifically, the average travel time of the vehicle is calculated according to the road section length and the designed green wave speed; acquiring the execution time of the signal control scheme, acquiring the average travel time of the road section according to the cycle length of the signal control scheme,determining the starting time of the signal, and performing time calibration; according to flow direction sjThe width of the lamp strip is determined by the time length of the green lamp of the release phase, namely the number of the simultaneously started signal lamps, and the designed green wave speed is used as the moving speed of the lamp strip in the starting subunit; thus, the starting time and the stopping time of each signal lamp are determined.
In the embodiment of the invention, the stationary subunit controller is used for processing the starting time and the stopping time of each signal lamp in each stationary subunit; the steady subunit controller obtains the starting time and the stopping time of each signal lamp in the starting subunit and the moving speed of the lamp strip; taking the green wave width as the initial lamp strip width; as the lamp strip is shortened, the first stable subunit needs to be naturally transited with the lamp strip of the starting subunit, namely the width of the lamp strip is uniformly reduced; determining, by the signal control scheme, a start-stop time of the green band within the first stationary subunit; determining the initial lamp strip moving speed of the stationary subunit by combining the starting and stopping time of the signal lamp at the tail end of the starting subunit and the lamp strip moving speed of the starting subunit, so that the lamp strip is synchronized with the green wave band at the position when the lamp strip moves to the tail end of the first stationary subunit; and determining a standard interval of the headway of the stationary subunit according to the green wave speed and the green wave band width, wherein the real-time headway value output by the video detection device belongs to the standard interval HMUnder the condition of (1), the industrial personal computer takes the green wave speed as the moving speed of the lamp strip of the unit; when real-time locomotive headway and the standard interval can not be matched, the industrial personal computer automatically corrects the moving speed of the lamp strip: when the headway is lower than the standard interval, it indicates that the downstream vehicles are too concentrated, the vehicles are guided to evacuate through the lamp strip in the subunit, namely, the moving speed of the lamp strip of the subunit is reduced, otherwise, when the headway exceeds the standard interval, it indicates that the downstream vehicles are too evacuated, and the subunits guide the vehicles to be concentrated through the lamp strip, namely, the moving speed of the lamp strip of the subunit is improved; and determining the starting time and the stopping time of each signal lamp in the stationary subunit.
In the embodiment of the invention, the terminal subunit controller is used for processing the starting and stopping time of each signal lamp in each stable subunit; the terminal subunit controller obtains the starting time and the stopping time of each signal lamp in the adjacent stable subunits and the lamp belt shiftMoving speed; referring to fig. 5, a green light margin g is determined according to the green light release time of the coordination phase and the green bandwidth time interval; the allowance g is uniformly distributed into the width of the terminal subunit lamp strip, so that the terminal subunit lamp strip is gradually widened in the moving process, the vehicle is guided to fully utilize the green time of the green wave intersection, and the utilization rate of green time is increased; the terminal subunit controller determines the standard headway interval H of the entrance way according to the length of the entrance way and the green wave speedE(ii) a Acquiring the head time distance of the entrance way output by the video detection device of the subunit, wherein the value of the head time distance belongs to the standard interval HEUnder the condition of (1), the industrial personal computer takes the green wave speed as the moving speed of the lamp strip of the unit; when real-time locomotive headway and the standard interval can not be matched, the industrial personal computer automatically corrects the moving speed of the lamp strip: when the time headway is lower than the standard interval, it is indicated that the vehicles in the entrance way are too concentrated, the vehicles are guided to be evacuated in the sub-unit through the lamp strip, namely, the moving speed of the lamp strip of the sub-unit is reduced, otherwise, when the time headway exceeds the standard interval, it is indicated that the vehicles in the entrance way are too evacuated, and the sub-unit is guided to be concentrated through the lamp strip, namely, the moving speed of the lamp strip of the sub-unit is improved; and determining the starting time and the stopping time of each signal lamp in the terminal subunit.
In a specific embodiment, if the light emitting component is a device capable of emitting light of multiple colors such as a two-primary color LED and a three-primary color LED, the light color, the start time, and the stop time of each signal lamp need to be determined by the start unit controller, the steady unit controller, and the end unit controller, where the lamp strip for guiding the vehicle to synchronize is the same as described above, and the other lamp posts display the non-guide color lamp light to form a continuously changing light emitting effect with the guide lamp strip. Meanwhile, when different colors are switched, the light-emitting component can realize a gradual change effect according to a specified change period and frequency.
In the embodiment of the invention, the control box sends control instructions to the signal lamps through the control bus according to the starting and stopping time of the signal lamps in each control unit output by the starting subunit controller, the stabilizing subunit controller and the ending subunit controller, and all the signal lamps respond to the control instructions to execute opening and closing actions so as to realize cooperative green light guidance.
In the embodiment of the invention, each control unit of the industrial personal computer can also generate a customized induction scheme, such as fixed-frequency flicker, according to the conditions of a special environment (such as foggy days), a special signal control scheme (such as a special duty priority scheme) executed by an intersection signal lamp at an end point and the like by an instruction.
The road-side cooperative guidance system of the trunk line bidirectional green wave fully considers the aggregation and dispersion characteristics of vehicles in different areas of a road section and the mutual feedback relationship between road-side guidance and vehicle passing, implements a targeted road-side guidance strategy to achieve a more reliable vehicle speed guidance effect, particularly implements a traffic guidance scheme cooperating with intersection signal control on the road section between two signal control intersections, provides driving speed indication information for a motor vehicle by using road-side signal lamps, and can drive into the intersection within a green light time range when the vehicle moves along with the signal lamp belts; compared with the prior art, the method is more precise and flexible, fully considers the mutual feedback relationship between traffic guidance and vehicle passing behaviors, and dynamically monitors the discrete condition of the vehicle on the road section through the video detection device, thereby dynamically adjusting the key parameters in the green wave guidance process: the width of the lamp strip, the moving speed of the lamp strip and the flexible road side guiding scheme can guide vehicles running on a road section to keep reasonable passing order and improve the traffic volume of vehicles at the intersection.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing detailed description, or equivalent changes may be made in some of the features of the embodiments described above. All equivalent structures made by using the contents of the specification and the attached drawings of the invention can be directly or indirectly applied to other related technical fields, and are also within the protection scope of the patent of the invention.
Claims (6)
1. The roadside cooperative guidance system for the two-way green wave of the trunk line is characterized in that the system is applied to a signalized intersection adjacent to each other and any flow direction sjUpper connecting two crossesEach control unit consists of a starting subunit, a stabilizing subunit and an end subunit; the system comprises a signal lamp bracket, a signal lamp, a video detection device, a control box and an industrial personal computer; wherein:
the control unit is composed of a set number of signal lamps, the signal lamps are fixedly arranged on the signal lamp supports, and the video detection device is arranged on the tail end signal lamp support of each of the stabilizing subunit and the terminal subunit; the control box is arranged at the appointed position of the terminal intersection of the control unit and is externally connected with a signal control system and an intersection annunciator for controlling the traffic signals of the intersection; the industrial personal computer is arranged in the control box and corresponds to the starting subunit, the stabilizing subunit and the destination subunit in each control unit, and a starting subunit controller, a stabilizing subunit controller and a destination subunit controller are arranged in the industrial personal computer.
2. The road-side cooperative guiding system of a trunk bidirectional green wave as recited in claim 1, wherein said flow direction sjWhere j is 1 and 2, and represents the upward direction and the downward direction of the green wave in the trunk-designated link, respectively.
3. The roadside cooperative guidance system of a trunk bidirectional green wave as claimed in claim 1, wherein the signal lamp is composed of a lamp tube and a light emitting module, the light emitting module is mounted on the signal lamp bracket through the lamp tube, and the light emitting module emits colored light according to a control instruction.
4. The roadside cooperative guidance system of the trunk line bidirectional green wave of claim 1, wherein the signal control system controls signal lights including cycle length, coordinated phase green light duration, non-coordinated phase green light duration, designed green wave speed, green wave bandwidth, and coordinated phase release start time within each cycle.
5. The roadside cooperative guidance system of a trunk line bidirectional green wave as claimed in claim 1, wherein the signal lamp holders are divided at sections of the control unit arranged at equal intervals, and the direction of the signal lamps is kept within the visual field of the driver at an angle to the lane line.
6. The roadside cooperative guidance system of the trunk line bidirectional green wave as claimed in any one of claims 1 to 5, wherein the signal lamp support, the signal lamp, the video detection device, the control box and the industrial personal computer are all connected with a power supply through a power supply circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920470100.9U CN210534989U (en) | 2019-04-09 | 2019-04-09 | Roadside cooperative guidance system for trunk line bidirectional green wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920470100.9U CN210534989U (en) | 2019-04-09 | 2019-04-09 | Roadside cooperative guidance system for trunk line bidirectional green wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210534989U true CN210534989U (en) | 2020-05-15 |
Family
ID=70592350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920470100.9U Active CN210534989U (en) | 2019-04-09 | 2019-04-09 | Roadside cooperative guidance system for trunk line bidirectional green wave |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210534989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113763730A (en) * | 2020-06-05 | 2021-12-07 | 杭州海康威视数字技术股份有限公司 | Method and device for determining utilization rate of green wave bandwidth |
-
2019
- 2019-04-09 CN CN201920470100.9U patent/CN210534989U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113763730A (en) * | 2020-06-05 | 2021-12-07 | 杭州海康威视数字技术股份有限公司 | Method and device for determining utilization rate of green wave bandwidth |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109859482B (en) | Road side collaborative guiding system for bidirectional green waves of trunk line | |
| EP3509050B1 (en) | Traffic light-based vehicle speed inducing method and system, and vehicle | |
| JP6421580B2 (en) | Traffic signal control device, computer program, and traffic signal control method | |
| CN108882484B (en) | Wisdom street lamp highway section lighting control system | |
| CN106023604B (en) | Break impulse formula traffic light control system | |
| CN210155839U (en) | Green wave passing system based on 5G Internet of vehicles | |
| CN113593258B (en) | Signal timing and vehicle speed dynamic coordination control optimization method based on vehicle-road cooperation | |
| CN108682168B (en) | Vehicle speed guiding system and method for reducing stopping at signalized intersection | |
| CN205609020U (en) | Green wavestrip of dynamic self -adapting intelligence signal controlling ware | |
| CN210534989U (en) | Roadside cooperative guidance system for trunk line bidirectional green wave | |
| US8525416B2 (en) | Process and device for controlling a plurality of LED assemblies of an automotive vehicle | |
| CN204020699U (en) | The control system of vehicle and vehicle brake lamp | |
| CN113990087B (en) | Signal control method for improving road traffic safety | |
| CN105101563A (en) | Tunnel safety driving lighting system and lighting control method for automobile | |
| CN106169242A (en) | There is the variable roadway signboard control system of multiple communication modes | |
| CN113223303A (en) | Road traffic double-core signal control machine and control system with same | |
| CN113990063B (en) | Intersection tramcar signal priority control method based on dual-network fusion | |
| CN111583686B (en) | Low-visibility highway guidance system and control method | |
| CN103426315B (en) | Be applicable to the caducous traffic control method of getting up early and the system of flat peak or offpeak period | |
| CN207068248U (en) | Intelligent road supplementary controlled system | |
| CN205091918U (en) | Traffic green sea guide indicating system | |
| CN112071094A (en) | Traffic route guiding and signal optimizing system based on vehicle-road cooperation | |
| CN209591091U (en) | A kind of variable roadway signboard | |
| CN210428829U (en) | Pedestrian crossing traffic signal lamp interlocking control system | |
| CN105096621A (en) | Road traffic signal aiding method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 211100 No. 19 Suyuan Avenue, Jiangning Economic and Technological Development Zone, Nanjing City, Jiangsu Province Patentee after: JIANGSU ZHITONG TRAFFIC TECHNOLOGY Co.,Ltd. Address before: 210006, Qinhuai District, Jiangsu, Nanjing should be 388 days street, Chenguang 1865 Technology Creative Industry Park E10 building on the third floor Patentee before: JIANGSU ZHITONG TRAFFIC TECHNOLOGY Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |