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2289 results about "Single vehicle" patented technology

A single-vehicle collision or single-vehicle accident is a type of road traffic collision in which only the one vehicle is involved. Included in this category are run-off-road collisions, collisions with fallen rocks or debris in the road, rollover crashes within the roadway, and collisions with animals.

Cooperative anti-collision device based on vehicle-vehicle communication and anti-collision method

The invention provides a cooperative anti-collision device based on vehicle-vehicle communication, belonging to the technical field of intelligent transportation/automobile safety control. The device comprises a vehicle operation information acquisition unit, a vehicle-vehicle communication unit, an information processing control unit, a data storage unit, an alarm unit and an execution unit. The vehicle operation information acquisition unit comprises a wheel speed sensor and a ranging module. Through the invention, the safety guarantee in vehicle running is enhanced; however, each vehicle executing cooperative collision prevention needs to be additionally provided with a cooperative anti-collision device, and a single vehicle only can implement the functions of a common anti-collision device; the vehicle-vehicle communication unit can acquire the information of space, speed and the like of the vehicles around in real time and perform real-time information interaction with the vehicles around; when the space is less than the safe space, the information processing control unit of the rear vehicle calculates the expected deceleration to avoid collision by reducing speed; and if the collision can not be prevented only by the rear vehicle, acceleration allocation information is sent to the front vehicle to notify the front vehicle to accelerate for cooperative collision prevention.
Owner:BEIHANG UNIV

Method and system for managing parking of shared bikes

The invention relates to a method and a system for managing parking of shared bikes. The method comprises steps as follows: proper positions are selected on two sides of a road to serve as shared bike parking spaces, and electronic parking piles are fixed nearby the shared bike parking spaces; the electronic parking piles transmit broadcast data packets around constantly in a wireless radio frequency manner; when users need to lock the bikes, intelligent locks of the shared bikes and the electronic parking piles conduct communication through the broadcast data packets; on the basis the fact whether the intelligent locks receive the broadcast data packets transmitted by the electronic parking piles, the response state of the intelligent locks is controlled when the user locks the bikes; after the users lock the bikes, the intelligent locks send locking information and received information from the electronic parking piles to a background cloud server; the background cloud server records bike parking information, analyzes the number of the shared bikes at the parking spaces in real time and conducts dispatching management on the shared bikes. The problem of disordered parking of the shared bikes can be solved, and besides, real-time monitoring of bike vacancy and rapid bike dispatching by workers are facilitated.
Owner:烟台天下客网络科技有限公司

Road traffic OD (Optical Density) information collection system for license plate recognition and processing method thereof

The invention relates to a road traffic OD information collection system for license plate recognition data, which comprises three subsystems of a roadside data collection subsystem, a roadside communication subsystem and a license plate recognition collection and processing platform subsystem; high-speed communication, transmission and data invocation between the data collection subsystem and the license plate recognition subsystem are finished by utilizing the roadside communication subsystem. The processing method comprises the following working steps from step 1 to step 7: storing and uploading the license plate recognition information of an external field collection section; secondary cleaning and secondary recognition; tracing and updating vehicle routes in real time; processing single-vehicle track tracing and revising single-vehicle OD errors caused by errors generated during the license plate information collection and transmission; counting the number of specific vehicles with the same types, the same starting points and destinations and in the same period when passing through the destinations; classifying and storing the revised OD values according to the information of the statistics periods, the vehicle types, the destinations and the like; and displaying an OD distribution matrix in forms of reports and graphs.
Owner:SHANGHAI SEARI INTELLIGENT SYST CO LTD

Shared-bicycle parking standardability confirming method and device as well as server and storage medium

The embodiment of the invention discloses a shared bicycle parking standardability confirming method and device as well as a server and a storage medium. The method comprises the following steps: acquiring verification pictures, shot and uploaded by a user through a terminal, of shared bicycles parked in a current area; if verifying that the verification pictures include parking aligning marks of the shared bicycles and shared bicycle recognizing marks which are in one-to-one correspondence with the shared bicycles, taking the verification pictures as valid pictures, wherein the parking aligning marks are patterns drawn on the shared bicycles and are used for showing the parking directions of the shared bicycles; confirming whether the valid pictures contain preset placemarks; and then confirming the parking standardability of the shared bicycles in the current area according to the confirmation results and the parking aligning marks and based on the preset parking standard. According to the scheme, the method has the advantages that the random stopping and parking of the shared bicycles can be solved; the city appearance is improved; the convenience of urban traffic management is ensured; and in addition, mass development of the shared bicycles is promoted.
Owner:何永安

Emergency immediate response transport pumper

The present invention discloses and claims a single vehicle that has both full fire fighting capability in the form of a pumper in permanent combination with full medical rescue and transport capability. Provided is a transport pumper of conventional design having a crew cab with four entrances, a large capacity fire pump, a tank containing a quantity of water, another tank containing a quantity of foam, a substantial length and diameter of fire hose, ground ladders, a side controlled pump operator's panel, and all other necessary equipment to be in substantial compliance with NFPA Standard 1901. Permanently provided on the same chassis as the pumper is an ambulance or rescue transport including rear entry double doors for patients, a rear dump capability, two supine patients on stretchers carrying capabilities, air conditioning, a side entrance door and all necessary equipment be in substantial compliance with federal standard KKK-A-1822E for a rescue transport. The rescue transport is modified only to the extent necessary to accommodate ground ladders and a hose bed on the top of the rescue transport. The vehicle concept is one of a modular design in permanent combination on a single chassis using standardized equipment already familiar to fire rescue personnel which can be readily refurbished and replaced with conventional equipment at minimized cost.
Owner:CITY OF HIALEAH

Travel time fusion prediction and query method based on traffic big data

The invention discloses a travel time fusion prediction and query method based on traffic big data, and the method comprises the steps: carrying out the offline calculation or training of data uploaded by all online vehicles to obtain various types of prediction models and parameters, and building and dynamically updating a data dictionary according to the prediction models and parameters; carrying out the call of the prediction models and parameters, and carrying out the prediction of the traffic state of a road network or a single vehicle through combining the real-time travel time data of a road segment and a path, wherein the data dictionary comprises a vehicle data dictionary, a road segment data dictionary and a path data dictionary, and the online vehicles are the vehicles which are registered to access to the network and automatically upload positioning and speed data. The beneficial effects of the invention are that the method solves problems that a road network or single vehicle traffic state prediction method in the prior art is poorer in instantaneity, universality and practicality, greatly improves the measurement precision, greatly improves the online prediction precision, and guarantees the instantaneity, practicality and universality in engineering application.
Owner:CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST

Electric booster bike and electric bike sharing and leasing operation system and operation method thereof

The invention discloses an electric booster bike and electric bike sharing and leasing system, comprising an operating service management platform, user terminals, operation and maintenance staff terminals, site control terminals, a plurality of charging cabinets provided with wireless communication terminals, and a plurality of electric bikes or electric booster bikes provided with bike-mounted terminals. On the basis of the existing sharing bike rental system, the electric booster bike and electric bike sharing and leasing system is additionally provided with the charging cabinets aiming at the characteristics of the electric booster bikes and the electric bikes. When using the electric booster bikes and the electric bikes, users can share rental battery packs by means of authorized unlocking, so that the riding distance of the electric bikes are guaranteed, and the problem of battery endurance of the sharing electric booster bikes and the electric bikes is solved. By adding the site control terminals, the large number of electric booster bikes, electric bikes, charging cabinets, operation and maintenance terminals and the like can be controlled and managed in a regional way, so that operation management efficiency and operation management level are improved.
Owner:WUXI QIRUI COMM TECH CO LTD

Road surveying and mapping method and road surveying and mapping system

The invention provides a road surveying and mapping method and a road surveying and mapping system. The method comprises the steps of enabling the original data of all vehicles acquired by location to form a single vehicle track set within a preset time period; carrying out road matching by the single vehicle track set and a spatial index established according to the road segment data of a base road network; carrying out correlation analysis on the single vehicle tracks which are not successfully matched according to the areas to confirm the relevant combinations as well as the fitted curves and the road grades of the relevant combinations; supplementing the road segment data of the base road network by the possibly missing roads confirmed according to the fitted curves and the road grades to form the road surveying and mapping result. The actual driving single vehicle tracks of the vehicles are matched with the existing base road network, the possibly missing rods can be obtained by the correlation analysis mass of single vehicle tracks, and the road segment data of the base road network is supplemented by the possibly missing rods; the method and the system are shorter in surveying and mapping period, controllable in surveying and mapping replacement cycle, high in accuracy of surveying and mapping result and timely in data updating.
Owner:BEIJING TRANWISEWAY INFORMATION TECH

Road traffic guiding method and system

The invention discloses a road traffic guiding method and system and belongs to the technical field of vehicle traveling navigation. The road traffic guiding method comprises the steps of guidance setting before traveling of a vehicle and guidance setting during traveling of the vehicle. According to the road traffic guiding method and system, the optimal traveling time and the optimal traveling path are selected before traveling of the vehicle according to real-time traffic status information before traveling and the individual requirements of a user, and dynamic and intelligent switching of road guiding strategies is carried out during traveling according to current real-time traffic status information. The road traffic guiding method and system have the advantages that planning of the traveling time and the traveling path of a single vehicle is achieved, road traveling time of the vehicle can be controlled and regulated macroscopically, traffic jam and traffic congestion are released effectively, and the phenomenon of traveling during the rush hours is avoided; meanwhile, when a sudden event occurs during traveling, the traffic guiding strategies can be switched intelligently, the user can avoid the rush hours and road sections with traffic jam conveniently, traffic guidance is achieved fast and conveniently, and the popularization and application value is good.
Owner:CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST

Rapid bridge detection method based on influence lines

ActiveCN107132011AImprove measurement and calculation accuracyQuick checkInformaticsSpecial data processing applicationsInfluence lineSpecific function
The invention relates to a rapid bridge detection method, which belongs to the technical field of civil engineering application. Firstly, a loading test vehicle with known axle load and wheelbase is adopted for loading to measure response of a test point; then, a method of adopting a specific function (piecewise polynomial and sine wave stacking) to fit the dynamic response of the test point is adopted to extract influence line information of the bridge; a tire-pavement stress distribution emprical formula is introduced to build a tire-pavement contact force trapezoid distribution model; in combination of the actual influence line information and the vehicle tire-pavement contact force distribution model, a linear superposition method is adopted to reconstruct bridge test point response information under different vehicle load combination effects, and thus, rapid bridge detection based on the influence lines is realized. Based on few driving tests on a single vehicle, the actual influence line information can be acquired rapidly and accurately, the bridge response information under different static load combination working conditions is reconstructed, rapid bridge detection is achieved, and the defects that the existing bridge detection method is long in consumed time, high in economic cost and long in traffic block time can be solved.
Owner:CENT SOUTH UNIV
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