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499results about How to "Reduce travel time" patented technology

Dynamic bidirectional green wave band intelligent coordination control method for urban traffic trunk line

The invention discloses an intelligent coordination control method of a dynamic bi-directional green wave band for an urban traffic trunk road. The method comprises the steps of starting, processing coordination parameters, processing intersection parameters, processing time and processing cycle, etc. The method adopts a double-stage control structure, namely, a control layer of a traffic control center server and a control layer of an intersection intelligent signal controlling machine, through the information interaction and the coordination of the traffic control center server and the intersection intelligent signal controlling machine, phase sequence is optimized in an on-line manner; and common period, highway section upper phase difference, highway section down phase difference, the starting time of an upper coordination phase, the starting time of a down coordination phase, green ratio at each intersection and other key control parameters are optimized and calculated on a real-time basis. The intelligent coordination control method gets rid of the limit of equal intersection intervals required for the coordination control of the green wave band for the urban traffic trunk road, and realizes the unceasing travel of bi-directional traffic flows on the main road by applying the traffic engineering technique, the artificial intelligence technique and the automatic control technique, thereby reducing the parking rate while the traffic capacity of the trunk road is improved, and obviously reducing the traveling time.
Owner:ZHEJIANG UNIV

Traffic signal self-adaptive control method based on deep reinforcement learning

InactiveCN106910351ARealize precise perceptionSolve the problem of inaccurate perception of traffic statusControlling traffic signalsNeural architecturesTraffic signalReturn function
The invention relates to the technical field of traffic control and artificial intelligence and provides a traffic signal self-adaptive control method based on deep reinforcement learning. The method includes the following steps that 1, a traffic signal control agent, a state space S, a motion space A and a return function r are defined; 2, a deep neutral network is pre-trained; 3, the neutral network is trained through a deep reinforcement learning method; 4, traffic signal control is carried out according to the trained deep neutral network. By preprocessing traffic data acquired by magnetic induction, video, an RFID, vehicle internet and the like, low-layer expression of the traffic state containing vehicle position information is obtained; then the traffic state is perceived through a multilayer perceptron of deep learning, and high-layer abstract features of the current traffic state are obtained; on the basis, a proper timing plan is selected according to the high-layer abstract features of the current traffic state through the decision making capacity of reinforcement learning, self-adaptive control of traffic signals is achieved, the vehicle travel time is shortened accordingly, and safe, smooth, orderly and efficient operation of traffic is guaranteed.
Owner:DALIAN UNIV OF TECH

Parking guidance system and method thereof based on release and forecast of parking index

InactiveCN102542841APublishing communicates intuitivelyAdd exponent operation unitIndication of parksing free spacesData transmissionGuidance system
The invention discloses a parking guidance system and a method thereof based on release and forecast of a parking index, and belongs to the technical field of parking management and vehicle detection of the internet of things. The parking guidance system comprises an information acquisition subsystem, a data transmission subsystem, a central control subsystem and an information release subsystem,wherein the central control subsystem comprises an information release server, an index operation unit, a database server and a management terminal; in addition, the information release subsystem comprises terminals such as an internet, a vehicle-mounted GPS (Global Positioning System), a traffic transceiver, a three-color guiding panel, a mobile phone. The method of the parking guidance system acquires the flow information of an outlet and an inlet of a parking lot, uploads the data, and computes the parking index. Finally, the computed result of the parking index is transmitted to the terminals of the information release subsystem. The parking guidance system and the method thereof can release the parking index and forecast the travel information visually and roundly, and can effectively integrate the conventional parking guiding information and other dynamic information such as real time traffic status.
Owner:北京百会科技有限公司 +2

Separation device for detaching and stacking stamped sheet metal

ActiveCN104444396AReduce wearReduce prime mover loadDe-stacking articlesEngineeringMetal
A separation device for detaching and stacking stamped sheet metal comprises a driving mechanism, a pushing mechanism, a lifting mechanism, a separating mechanism and a sheet metal supporting base. The sheet metal supporting base is used for supporting the other mechanisms and stacking the sheet metal. The pushing mechanism allows a pushing assembly to slide linearly in the horizontal guide direction of a guide support through a vertical slide rod connected with a cylinder so that the effect of pushing out the sheet metal on the top layer can be achieved. The lifting mechanism controls the guide support to rise and fall by adjusting the number of rotation circles of a screw so that a push block can always keep aligned with the sheet metal on the top layer when starting to work. The separating mechanism is connected to the lifting mechanism when a steel wire rope is wound around a pulley so that the separating mechanism can synchronously rise and fall together with the lifting mechanism under the influences of the gravity of the separating mechanism. A separating rod can prevent the sheet metal on the top layer from absorbing the sheet metal on the lower layer and sliding together with the sheet metal on the top layer, and a separating inclined block makes a gap formed between the sheet metal on the top layer and a sheet metal stack. The intermittent movement of the pushing mechanism and the lifting mechanism is achieved through double ratchets by means of the driving device. The separation device is easy to operate, high in efficiency, good in separation effect, high in flexibility and wide in applicability.
Owner:GUANGXI UNIV

Intelligent traffic solution scheme based on GID

The invention discloses an intelligent traffic solution scheme based on a GID. According to the intelligent traffic solution scheme, a GID terminal is used as a movement speed meter to collect various static and dynamic information such as the speed and the operating state of vehicles, network plate numbers and various positioning technologies are combined, a quick and safe information transmission method depending on an ubiquitous network is used for achieving real-time road condition. According to the technical scheme for solving the technical problems, the achievement of the GID mainly comprises three parts: the first part is a multimode multi-homing and multi-state AP terminal, the second part is the networking mode of the network, the third part is a cloud service platform, and exchange and sharing of the service are conducted. The multimode and multi-homing characteristic of the GID system terminal is achieved through the inherent communication mode and bridging module of the GID system terminal. According to the intelligent traffic solution scheme based on the GID, the mode of 'end-tube-cloud' (namely 'communicating, sensing, computing terminal +network+ cloud computing center platform') is used for establishing a collaborative intelligent traffic three-layer network system.
Owner:NANJING UNIV OF POSTS & TELECOMM

Fare gate passing logic control system and method

The invention provides a fare gate passing logic control system and method. According to the fare gate passing logic control system and method, a passing state detection area with pressure sensing as an implementation mode is arranged in a certain distance range in front of a gate passage, and the passing speed and the passing state of current pedestrians are predicted and calculated in combination of infrared light curtains installed on gate doors of a gate; a time interval from opening to closing of the gate is adaptively adjusted according to the passing speed and the passing state, the passing time duration is distributed as needed, and the average passing duration is shortened compared with passing logic control of a fixed time interval; for people moving slowly or carrying luggage or taking children or the like, the time interval from opening to closing of the gate is prolonged based on the predicted passing speed and passing state, so that on one hand, safety risk is reduced, and on the other hand, passing delay caused by repeated opening and closing of the gate or the advanced closing of the gate is avoided; through effective recognition of the passing state, mistaken alarming can be avoided, and recognized following gate breaking and other behaviors can be effectively warned.
Owner:浙江网新电气技术有限公司

Expressway traffic efficiency improving method based on reinforced learning variable speed-limit control

InactiveCN106157650AImprove expressway traffic efficiencyReduce system transit timeArrangements for variable traffic instructionsDetection of traffic movementAnti jammingFeedback regulation
The invention discloses an expressway traffic efficiency improving method based on reinforced learning variable speed-limit control. The method comprises the steps that variable speed-limit values are determined in real time according to a reinforced learning method, an intelligent body perceives the running states of traffic flows on an expressway according to traffic flow data, a speed-limit value action is selected for the current state, a return valve of state transition caused by the action is calculated, the intelligent body traverses all state-action combinations till all state-action return values are convergent, and the intelligent body acquires the optimal speed-limit value action in the different traffic flow states off line; the intelligent body automatically selects the optimal speed-limit value corresponding to the current state and issues the optimal speed-limit value according to the real-time traffic flow data, and the controlled traffic flow data and speed-limit values are transmitted to a control center, so that the intelligent body continuously learns. According to the method, the defect that in the past, the subjective arbitrariness is generated when the corresponding relation between the traffic flow state and the speed-limit values in variable speed-limit control is determined is overcome, and the anti-jamming capability of a control system is improved; the affecting law of the speed-limit values on traffic efficiency improving is continuously mined through the intelligent body, therefore, feedback regulation is conducted on the variable speed-limit values according to the real-time traffic flow data, and the road traffic efficiency of a bottleneck road section in variable speed-limit control is effectively improved.
Owner:SOUTHEAST UNIV

Management, induction and control system of urban traffic

The invention relates to a management, induction and control system of urban traffic, which solves a problem of technology integration of a traffic signal control subsystem, a traffic induction display subsystem, a traffic monitoring subsystem and a mobile early-warning subsystem of the intelligent early-warning subsystem. The invention is characterized in that: a traffic database is in bidirectional connection with the traffic signal control subsystem, the traffic induction display subsystem, the traffic monitoring subsystem and the mobile early-warning subsystem and a traffic information issuing subsystem; and multi-source data fusion of detectors, which includes a microwave probe, a video probe, an ultrasonic probe, a geomagnetic coil, a wireless geomagnetic head, and a geomagnetic detecting head and the like. The beneficial effects are as follows: various data formats are converted into a format of a same standard; the share of traffic basic data and historical data is allowed; the levels of intellectualization, informatization and visualization of urban traffic management are improved; stop frequency is reduced, travel time is shortened, and discharge of automobile exhaust isreduced; and reliable guarantee is provided for energy conservation and travel safety.
Owner:沈阳广信先锋交通高技术有限公司
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