21 results about "Reversible lane" patented technology

The utility model relates to the technical field of lane monitoring equipment, and discloses monitoring equipment for an intelligent distribution device based on a variable lane. The convenient maintenance mechanism is arranged on the cross beam, and the convenient maintenance mechanism is used for facilitating safety maintenance work of a user; and the stable clamping mechanism is arranged on the convenient maintenance mechanism, and the stable clamping mechanism is used for improving the stability of shooting. Through the overall design of the convenient maintenance mechanism, the stepping motor is controlled to work, the rotating disc can be driven to rotate, and through transmission of the first connecting rod, the overall connecting cylinder, the second connecting rod and the connecting frame, the camera body can be driven to rotate with the rotating disc as the circle center, so that the camera body tends to move on the ground; and the user can maintain the camera main body on the ground, climbing maintenance is not needed, and the safety and efficiency of maintenance work are improved.

The invention discloses an intersection entrance and exit dynamic variable lane coordination optimization method and system in an automatic driving and manual driving mixed driving environment, and the method comprises the steps: setting a left-turn entrance lane at the left side of an exit lane, and enabling left-turn and opposite straight vehicles to pass at the same time; and setting entrance and exit dynamic variable lanes, enabling a lane of an entrance lane of a left-turn motorcade to be used as an exit lane of an opposite straight motorcade at the same time, and obtaining the functions of each lane at the intersection, the stop line position of a conflict lane and the number of vehicles in each lane by solving a nonlinear programming model with the minimum intersection passing time as a target. The left-turn entrance lane is arranged on the left side of the exit lane, so that left-turn and opposite straight-going motorcades can be simultaneously released in the same phase, the number of conflicts and phases is reduced, and the waiting time of vehicles is shortened. Meanwhile, an entrance and exit dynamic variable lane is arranged, so that a left-turn motorcade can enter the intersection through the lane, an opposite straight lane can leave the intersection through the lane, and efficient utilization of lane resources is achieved.

The invention discloses a self-adaptive safe connection control method and system for a reversible lane robot, and relates to the technical field of road traffic control. Comprising the following steps: S1, acquiring load data at a rigid connecting piece for connecting two adjacent robots in real time; s2, on the basis of the load data, calculating at least one key load component causing internal stress accumulation of the connecting piece; s3, comparing the load component obtained by calculation with a corresponding preset safety threshold value; s4, if any load component exceeds the corresponding safety threshold value, the translational degree of freedom of the connecting piece in the corresponding direction causing accumulation of the load component is relieved; and S5, after the load component is reduced to be lower than the corresponding recovery threshold value and is kept stable for a time exceeding a preset time, recovering the locking of the degree of freedom. Closed-loop control of overload release and load drop lock is realized, fatigue damage and sudden fracture risks of connecting pieces are remarkably reduced, the reliability of reversible lane robot groups in a complex road environment is improved, and the service life of the reversible lane robot groups in the complex road environment is prolonged.

The invention relates to the technical field of traffic signal control, and discloses a multi-intersection variable guide lane traffic signal control method based on path selection, and the method comprises the steps: firstly constructing a road network model, and initializing parameters; secondly, establishing a bilevel planning model, optimizing a lane function, a signal period and a green time ratio by the upper layer model by taking minimization of the total impedance of a road network as a target, and performing traffic flow distribution on the basis of a Logit model and a road section impedance function by the lower layer model so as to obtain balanced road section flow; then, a hybrid heuristic algorithm is adopted for solving, an outer layer searches for control parameters through a non-dominated sorting genetic algorithm, and an inner layer loads flow through a continuous averaging method; and finally, analyzing the optimal scheme, and driving the variable lane and the annunciator by adopting asynchronous logic after consistency verification. According to the invention, deep cooperation of time and space resources is realized, road network flow distribution is optimized in combination with driver path selection behaviors, and traffic efficiency and system safety are effectively improved.

The invention relates to an urban trunk road signal control coordination optimization method considering multiple types of variable lanes, and the method comprises the steps: constructing an accumulated arrival curve and an accumulated departure curve of the peripheral section of an urban trunk road based on an accumulated curve theory and collected data, and considering the difference distribution of driving behaviors, constructing a virtual cumulative departure curve of the peripheral section of the urban trunk road; constructing a multi-objective optimization function based on the relationship among the three curves, respectively calculating the queuing distribution of the peripheral section and the internal section of the urban trunk road, and quantitatively representing the multi-objective optimization function; a constraint condition of a multi-objective optimization function is constructed by considering a vehicle conflict phenomenon, a lane number, traffic volume fluctuation, an urban trunk road public period length and traffic light duration; and solving the multi-objective optimization function based on a particle swarm optimization algorithm, and obtaining a signal control scheme and a lane division scheme. Compared with the prior art, the method can achieve the coordination optimization of urban trunk roads and signal control under the condition of multiple types of variable lanes.

The invention relates to a supersaturated intersection space-time cooperative control method fusing dynamic channelization design and multi-target signal optimization, and aims to solve the problem of intersection supersaturation caused by fixed lane functions and the like of a conventional channelization method for urban intersections. A space-time cooperative control scheme fusing dynamic channelization design and multi-target signal optimization is provided. The method comprises the following steps: determining a supersaturation state of an intersection by establishing a supersaturation state identification model based on a queuing length change rate; on the basis of a space-time resource collaborative optimization theory, an improved comprehensive waiting area is designed, a bus-dedicated pre-entrance lane and a variable entrance and exit lane are additionally arranged, and a main and pre-signal coordination control strategy is optimized; according to specifications and questionnaire survey results, determining a signal period and a green time ratio of the supersaturated intersection; on the basis of the principle of easy recognition, sign and marking design is carried out on a pre-entrance lane special for a bus, a reversible lane and a comprehensive waiting area, effective guidance for a driver is achieved, and therefore the operation efficiency and the traffic capacity of a road intersection are improved.

The utility model discloses a road surface hot melting marking tool which comprises a marking tool car, a pushing handle is installed at the end of the marking tool car, a hot melting liquid barrel is installed on the marking tool car, meanwhile, the hot melting liquid barrel is connected with a hot melting hose through a booster pump, the end of the hot melting hose is communicated with a hot melting spray gun, and the hot melting spray gun is communicated with the hot melting spray gun. And the bottom of the marking tool car is supported through travelling wheels. According to the road surface hot-melting marking tool, when a hot-melting spray gun is used for marking, the hot-melting spray gun is driven by a driving motor to move through a driving disc, a driving rod and a mounting disc, so that the hot-melting spray gun obliquely moves, the hot-melting spray gun is used for marking oblique lines on the ground, and multiple groups of parallel oblique lines are drawn on a road by repeating the steps; and straight lines are drawn at the ends of the multiple groups of oblique lines, and when the straight lines are drawn, the driving motor does not work, so that the variable lane marking work of the road is completed.

The invention discloses a variable lane automatic control method based on stuck police data, and relates to the technical field of intelligent traffic control, and the method comprises the steps: determining the speed of a traffic flow flowing into a target intersection from a target entrance direction according to the stuck police data of the target intersection and an upstream intersection and a downstream intersection in a current time period, determining the travel time of each driving direction from the target entrance direction to the downstream intersection, wherein a variable lane is deployed in the target entrance direction; according to the traffic flow speed of the target intersection and the travel time of each driving direction, determining the congestion degree of each driving direction from the target entrance direction to the downstream intersection; and controlling a signal controller of the target intersection to switch the lane attributes of the variable lane according to the congestion degree of each driving direction. According to the method, collaborative optimization of the variable lane and signal control is realized through real-time analysis of the card police data, and the vehicle passing rate of the intersection is improved, so that the overall operation quality of urban traffic is effectively improved.

The application provides a control method and device of a variable lane sign, relates to the technical field of electronics, and realizes low-cost, saving of manpower and material resources, and reduction of control risks of the variable lane sign control. The scheme comprises the following steps: obtaining reference information of the variable lane sign; the reference information is generated internally by a control unit, or the reference information is input by a user, or the reference information is sent by a remote network device; the reference information is used for indicating a target pattern displayed by the variable lane sign; the target pattern is any one of a plurality of patterns supported by the variable lane sign; a target terminal output level information corresponding to the target pattern of the variable lane sign is controlled, so that the variable lane sign displays the target pattern; and the target terminal is an output terminal connected to the target pattern of the variable lane sign in a driving circuit.

The invention provides a variable lane vehicle reminding method and method, belongs to the field of intelligent driving, and activates voice to remind a driver to check a front lane sign when a variable lane appears within a specific distance in front of a vehicle. And when the driver checks the lane indication board and the front vehicle does not run according to the regulations, the driver does not remind the current vehicle of wrong running of the front vehicle and reminds the rear vehicle of wrong running of the front vehicle. When a driver does not check the lane indication board and the front vehicle does not drive according to the regulations, the driver and the rear vehicle are prompted that the front vehicle drives mistakenly, and according to the variable lane vehicle reminding method provided by the invention, the follow-up vehicle can be reminded and pre-warned according to the current road condition in different variable lane scenes; and the self vehicle and the rear vehicle can be timely reminded not to run mistakenly along with the front vehicle, so that penalty caused by misleading of driving is avoided, and the driving safety is improved.

The invention provides a vehicle control method and device, electronic equipment and a storage medium, and the method is applied to a cloud end, and comprises the steps: obtaining the driving intention information of a target vehicle in a variable lane; acquiring road sensing information sent by the roadside equipment; the road perception information at least comprises first perception information collected for the variable lane and second perception information used for representing a traffic guidance signal; based on the road perception information, generating a vehicle driving instruction matched with the driving intention information; and sending the vehicle driving instruction to the target vehicle to control the target vehicle to execute the vehicle driving instruction. According to the embodiment of the invention, the vehicle is controlled to drive on the variable lane according to the driving intention of the vehicle, so that the driving experience of a user is improved.

The invention provides an intelligent dimming device for a variable lane signboard, and relates to the technical field of variable lane signboards. According to the invention, an acquisition dimming module is arranged, and the acquisition dimming module receives a dimming adaptive selection signal sent by a variable lane controller to enter a running state; the acquisition dimming module is in communication connection with an illumination sensor for sampling the light intensity of stable light in a road environment; the acquisition dimming module is used for generating and outputting a 0-220V strong current alternating current signal representing dimming information based on light intensity information acquired by the illumination sensor; the acquisition dimming module supports remote connection with a plurality of dimming adapter plates, each dimming adapter plate acquires and analyzes a strong current alternating current signal, drives a controlled power supply to supply power to the variable signboard according to dimming information contained in the strong current alternating current signal, and adjusts the brightness of the variable signboard.

The application relates to a road section variable lane allocation model construction method and device, belonging to the technical field of traffic signal control engineering, wherein the road section variable lane allocation model construction method comprises the following steps: a variable lane section switching cell transmission model is constructed to simulate the traffic flow transmission process before and after the variable lane switching of a road section; an arterial road lane allocation evaluation mechanism is established; a target function with the minimum total travel delay of a path as an optimization target is constructed based on the arterial road lane allocation evaluation mechanism; and constraint conditions are set for the target function; and after the optimization of the variable lane section switching cell transmission model based on the target function and the constraint conditions, a road section variable lane allocation model is constructed to determine the variable lane allocation scheme of the road section, so that the arterial traffic flow travel stability is ensured.

The utility model relates to the technical field of lane indication boards, and discloses an LED (light-emitting diode) variable lane indication board which comprises a mounting base; the reinforcing strip is fixedly connected to the top of the mounting base; the supporting column is fixedly connected to the top of the mounting base; the top of the mounting base is fixedly connected with an operation assembly. According to the LED variable lane indication board, a motor is started to operate a connecting screw rod to rotate, so that a sliding rod drives a linkage plate, a linkage rod, a supporting plate and a mounting column to move up and down, the height of the LED indication board can be adjusted according to road conditions, a positioning block is clamped into a positioning groove, and a fixing rod is inserted into the side face of the positioning block and the side face of the mounting plate in a penetrating mode; and then the locking block is connected to the outer end face of the fixing rod in a threaded mode, so that installation of the LED indication board is completed, the number and the direction of the LED indication board can be selected according to the intersection situation, and when the LED indication board does not need to be installed, the first magnetic sheet and the second magnetic sheet are attracted through the magnetic poles, and the installation board can be stably clamped in the containing groove conveniently.

The invention relates to the technical field of reversible lane guardrails, in particular to a transmission and steering structure of an intelligent reversible guardrail. The lower portion of a bearing plate is connected with a rotating shaft through a mounting sleeve, the lower portion of the rotating shaft is connected with a rotating table through bolts, the rotating table is rotationally connected with corresponding rolling wheels, and each rolling wheel is connected with a cross shaft universal joint; a steering assembly is arranged above the bearing plate, the steering assembly can drive the four rolling wheels to synchronously steer, a transmission assembly is arranged in the transmission box, and the transmission assembly can drive the four rolling wheels to synchronously rotate; the transmission and steering method of the intelligent tide guardrail comprises the steps that the steering motor drives the four rolling wheels to synchronously steer through the steering assembly, and the transmission motor drives the four rolling wheels to synchronously steer through the transmission assembly. Through the ingenious design of the steering assembly and the transmission assembly, simultaneous rotation and steering of the four rolling wheels are achieved, and the efficiency in actual use is remarkably improved.

The application provides a variable lane management method, device and equipment, the method comprising: for each time period in a specified statistical period, if it is determined that the time period meets a lane attribute change constraint condition, an imbalance coefficient between a left-turn lane and a straight lane is obtained, and an imbalance coefficient threshold between the left-turn lane and the straight lane is obtained; if the imbalance coefficient is not less than the imbalance coefficient threshold, an optimal lane turning configuration corresponding to the time period is determined; if there are a left-turn lane turning configuration time period and a straight lane turning configuration time period in the specified statistical period, the candidate intersection is determined as a target intersection that needs to be set with a variable lane. Through the technical solution of the application, the variable lane and the time period (the time period of the left-turn lane and the time period of the straight lane) can be accurately set, the disadvantage of insufficient utilization rate of the left-turn lane or the straight lane is effectively made up, and the utilization rate of the left-turn lane or the straight lane is higher.

The invention discloses a traffic flow-based lane management method in an intelligent traffic system. The invention researches a management control system for the number of left-turn and straight lanes at an intelligent traffic intersection. A left-turn lane, a straight lane and a right-turn lane exist in a large intersection, the right-turn lane may have a right-turn special lamp to control passing of vehicles, and the right-turn lane may have vehicles to turn right all the time. Therefore, the number of the right-turn lanes at the intersection is fixed generally. However, in a large intersection, left-turning and straight-going lanes have respective traffic flows due to mutual independence of the traffic flows, and passing of straight-going vehicles in opposite lanes can be caused by passing through lanes, so that left-turning vehicles cannot turn left under the influence of passing of the opposite through lanes; therefore, the left-turn lane and the straight lane do not share the lane generally at a large intersection. Under the condition that the number of lanes is limited, how to allocate the limited number of lanes between a left-turn lane and a straight lane is a key problem urgently needing to be solved in variable lane decision making in an intelligent traffic system. In order to solve the problem, a lane management method based on traffic flow in an intelligent traffic system is provided, deep theoretical analysis and application exploration are carried out, and a unique and efficient solution is provided. The method physically accords with the scene of practical application and can be effectively applied to engineering practice.

The invention discloses an expressway highland linkage control system and method based on a dynamic game, and relates to the technical field of traffic signal control. According to the method, traffic flow data are acquired based on deploying a roadside sensing unit in a viaduct, ramp and ground lane network, a dynamic game decision model is constructed to set a ramp management and control strategy, and under different ramp management and control strategies, the traffic flow data are acquired. Respectively carrying out red wave throttling, variable lane distribution and breathing type green wave control strategies aiming at the ground upstream intersection, the entrance ramp ground connection lane and the ground downstream connection intersection; therefore, collaborative decision-making integrating elevated traffic control and ground traffic control is realized, control strategy splitting is avoided, and the operation efficiency of the whole road network is improved; meanwhile, through red wave control, variable lane allocation and breathing type green wave band adjustment, flexible dispersion of ground traffic flow is achieved, the risk of secondary congestion is reduced, existing road resources are utilized to the maximum extent, and the traffic capacity and the traffic smoothness are improved.

The invention relates to the technical field of intelligent traffic control, in particular to an intersection traffic channelization problem diagnosis method. In the embodiment of the invention, the intersection data of the intersection to be diagnosed in the set time range is acquired, and the intersection data comprises the channelization design data, the timing scheme and the traffic flow data, so that whether the channelization design problem exists in the intersection to be diagnosed or not can be determined according to the intersection data, the channelization design problem comprises one or more of mismatching of a lane attribute and a release mode, mismatching of the lane attribute and flow, mismatching of the number of entrance and exit lanes, insufficient lane broadening length, no arrangement of a variable lane, no arrangement of a reversible lane and insufficient turning radius of a U-turn opening. According to optimization suggestion data stored in advance for the channelization design problem, automatic diagnosis of the intersection traffic channelization design problem is realized.

A variable lane robot and movable guardrail, including main body, bottom of main body is equipped with rolling wheel, main body inside has electric control unit for driving rolling wheel walking, fan is equipped on top of main body, solar cell panel is equipped on side, main body inside has energy storage unit for storing wind turbine and solar cell panel conversion electric energy.The variable lane robot and movable guardrail can utilize solar energy and can capture traffic wind energy to generate electricity, and the energy-saving and emission-reducing effect is remarkable, and the deployment is convenient, and the energy storage unit can be used to realize completely clean energy power supply.