34results about How to "Reduce traffic hazards" patented technology

The invention discloses an area road network traffic safety situation early warning system and a method thereof. The system comprises monitoring equipment, a data transmission system, a data process system and an early warning system. The method comprises the following steps: acquiring data information of road traffic, meteorology, illegal behaviors, and accidents through the monitoring equipment; sending the data information through the data transmission system; carrying out a multiple heterogeneous treatment on the acquired data information through the data process system, and merging data of the same kind; analyzing and assessing early warning grade through the early warning system, and determining and publishing a early warning scheme. Thereby road network traffic safety situation information can be comprehensively grasped, and dangerous source existing in the road network can be discovered timely to determine an early warning grade and generate an intelligent early warning countermeasure. Pertinence, instantaneity and validity of a measure of a road traffic management department actively preventing traffic accidents are improved. Technology support is provided in the invention to reduce area road network traffic risk factor and prevent major and extraordinarily serious road traffic accidents.

The invention discloses a system and a method for detecting and relieving driving fatigue based on electrical acupoint stimulation. The system comprises an electroencephalogram acquisition device, an upper computer, a lower computer and an electrical stimulation instrument, an input end of the electroencephalogram acquisition device is connected to the cerebral cortex of a driver, an output end of the electroencephalogram acquisition device is connected with the upper computer which is connected with the lower computer, the lower computer is connected with an input end of the electrical stimulation instrument, and a pulse output end of the electrical stimulation instrument is connected to a meridian point, capable of reliving brain fatigue, of the driver through an electrode. The method includes: acquiring electroencephalogram signals of the driver in real time; and extracting fast-wave and low-wave frequency band signals in the electroencephalogram signals, computing a ratio of fast-wave average power spectra to low-wave average power spectra, judging the driving state of the driver according to reduction of the ratio, and controlling the electrical stimulation instrument to start and enter a corresponding working mode. Driving states of the driver are monitored in real time, and electrical stimulation is performed to the driver in good time, so that driving fatigue is relieved better, driving safety is improved, and hidden danger of traffic caused by fatigue driving is reduced.

The invention discloses a time headway-based road vehicle change model calibration method, a time headway-based road vehicle lane change decision making method and a device. The vehicle lane change model calibration method comprises the steps of obtaining measured data of a vehicle and a road, wherein the measured data comprises the fact whether the lane of the vehicle has adjacent lanes or not, distances between the vehicle and vehicles in the front and rear on the same lane and the adjacent lanes and speeds of related vehicles; determining a lane change direction and determining whether a lane change motive exists or not and a target lane according to a time headway; constructing a time headway-based logistic vehicle lane change model; and extracting condition data indicating lane changesuccess and lane change rejection of a target vehicle so as to calibrate the vehicle lane change model. The time headway-based road vehicle change model calibration method is low in complexity, strong in applicability, less in data quantity demand, high in calculation efficiency and good in simulation effect, is capable of obtaining reliable vehicle lane change models through less measured data of vehicles and roads to simulate vehicle lane change behaviors, thereby researching the vehicle lane change behaviors, predicting the traffic flow states and providing help to ease the traffic congestion, decrease the hidden trouble of traffic and reduce the resource waste.

The invention discloses a vehicle illegal parking detection method and device based on video frame picture analysis, and mainly aims to improve the recognition rate of illegal parking vehicles on a lane and assist related departments in finding the illegal parking vehicles in time. The method comprises the following steps of: detecting whether a vehicle exists in a video frame picture corresponding to a target no-parking area or not; when the vehicle is detected, extracting vehicle information of a vehicle from the video frame picture, and determining whether the vehicle information of a previous video frame picture corresponding to the video frame picture exists in a preset vehicle information list or not, wherein the frame number of the video frame picture and the vehicle information corresponding to the frame number are stored in the preset vehicle information list; if the vehicle information of the previous video frame picture corresponding to the video frame picture exists in thepreset vehicle information list, calculating the similarity between the vehicle information of the previous video frame picture and the vehicle information of the video frame picture; and when the similarity is smaller than a preset threshold, determining that the vehicle in the video frame picture is illegally parked. The vehicle illegal parking detection method and device are suitable for vehicle illegal parking detection.

The invention discloses a smart traffic safety management system. The smart traffic safety management system comprises a human condition detection unit, a road condition detection unit, a weather detection unit, a central processing unit, a monitoring alarm unit and a wireless communication module; the human condition detection unit is used for detecting the alcohol concentration and fatigue intensity of a driver in real time, the road condition detection unit is used for detecting obstacles on a traffic road surface, the road surface humidity and the road surface flatness in real time, and the weather detection unit is used for detecting the visibility, wind speed / wind direction and rainfall on the traffic road in real time. In the system, multiple module detection units are used for performing traffic safety detection, and thus the traffic safety is greatly improved; the traffic safety management system performs integrated processing on traffic safety status early warning index system of various traffic management units of a regional road network and determines the early warning level to generate intelligent early warning countermeasures, so that the pertinence, real-time performance and effectiveness of active traffic accident prevention measures of the highway traffic control department are improved.

The invention relates to a conflict-free two-phase signal intersection which comprises running lanes and a crossroad which are connected. Compared with the prior art, the problem of a crossing conflict between a left-turning vehicle running in an allowable phase and a coming straight-running vehicle is solved through canalized traffic stream division, and conflict points are eliminated, so that vehicle running is safe, smooth and high in efficiency.

The invention discloses a real-time on-line dead-zone-free street scene sharing system for vehicles, and belongs to the technical field of automobiles. According to the street scene sharing system, a real scene collecting module is connected with a data processing module and used for collecting video data of street scene road conditions, and a storage module is arranged in the data processing module and used for storing the collected video data of the street scene road conditions; a speed sensor is connected with the data processing module and used for detecting the current vehicle speed in a real-time and on-line mode; a GPS module is connected with the data processing module and used for positioning the vehicles in real time and recognizing Bluetooth identity characteristics; a Bluetooth sharing module is connected with the data processing module and used for sharing data with other surrounding vehicles, wherein the Bluetooth sharing module is of an open type and is automatically paired with the vehicles, recognized by the GPS module, at specific positions to share the video data of the street scene road conditions. The street scene sharing system can effectively avoid traffic hidden danger caused by dead zones inside the vehicles and dead zones outside the vehicles.

The invention relates to the technical field of smart cities, and discloses an energy-saving and environment-friendly smart city road water drainage anti-blocking device. The device comprises a support; a rain grate is movably connected with the top of the support; a guide rail is movably connected with the interior of the support; floating blocks are fixedly connected with the two sides of the bottom of the guide rail; U-shaped cavities are movably connected with the exteriors of the floating blocks; blocking blocks are movably connected with the bottoms of the U-shaped cavities; a brush rodis movably connected with the interior of the guide rail; and a connecting rod is hinged to the bottom of the brush rod. Through the cooperative use of a turbine disc, an inner rotating ring, an energy storage strip, an outer sleeve ring, a transmission ratchet wheel, a transmission gear, a worm, an energy storage ratchet wheel and a fork shaft rod, the rotating stability of the telescopic shaft is effectively guaranteed, and rotating mechanical energy is provided through the fork shaft rod and the turbine disc at the same time, so that the using effect of the device is effectively improved, rainwater is utilized for automatic rotation, the energy effect is effectively reduced, the energy-saving and environment-friendly effects are achieved, and meanwhile the timeliness of anti-blocking cleaning is effectively guaranteed.

The invention discloses an express delivery method and device and a storage medium. The method comprises the steps of obtaining express information; determining a destination delivery position and a first recognition code of a destination router according to the express delivery information; after the unmanned aerial vehicle obtains the express, the unmanned aerial vehicle is controlled to fly towards the destination delivery position; when the unmanned aerial vehicle flies to a preset range of the destination putting position, detecting a destination router signal corresponding to the first recognition code through the unmanned aerial vehicle; and when the destination router signal is the strongest router signal which can be detected by the unmanned aerial vehicle, controlling the unmanned aerial vehicle to deliver the express, so that the delivery efficiency of the express can be improved, and the user can receive the express conveniently.

The invention discloses a vehicle tire puncture reminder device and a using method thereof. It comprises: a high-speed camera arranged on a wheel cover capable of taking pictures of vehicle tires; a data processing unit arranged on the wheel cover, the high-speed camera and data processing unit The unit is connected through a circuit, and the data processing unit can read and analyze the photos taken by the high-speed camera; the alarm device is connected with the data processing unit through a circuit, and the alarm device can issue an alarm under the control of the data processing unit. It can quickly identify and notify the driver, reduce traffic hazards caused by vehicle tires being punctured by foreign objects, and ensure the safety of the driver's life and property.

Road surface ice and snow clearing equipment driven by a leather belt transmission mode comprises a connection frame, a link mechanism, a middle wheel disc frame, a left side frame, a right side frame, a spring, a middle wheel disc, an inner wheel disc, an outer wheel disc, a pin shaft, an upright column, ice and snow clearing cutters, a transmission shaft, a hydraulic jacking device, a speed reducing device, a main belt pulley and a leather belt, wherein the connection frame is connected with the middle wheel disc frame through the link mechanism, and the middle wheel disc frame is perpendicular to the ground and is provided with the hydraulic jacking device. The middle wheel disc frame is connected with the left side frame and the right side frame through the pin shaft, and a left side wheel disc and a right side wheel disc can be tightly attached to the ice and snow ground through spring jacking. The transmission shaft is connected with the wheel discs through the main belt pulley, and the ice and snow clearing cutters are respectively installed at the bottom of the wheel discs. The road surface ice and snow clearing equipment driven by the leather belt transmission mode has the advantages that a combination process with a tractor or a large engineering vehicle and the like can be achieved conveniently; compacted ice and snow layers on a road surface are cleared cleanly by the ice and snow clearing cutters under the driving of the wheel discs, and therefore the traffic hidden danger is effectively reduced.

The invention discloses an asymmetric LED street lamp lens; the lens is symmetric along the central short axis, and asymmetric along the central long axis; the lens comprises a basal surface and a light outgoing surface; the center of the basal surface is hollowly provided with a concave pit in order to form an incident surface of the lens; the light outgoing surface is a discontinuously transitional free curve consisting of at least two pieces of free curves connected along the central long axis; both the at least two pieces of free curves incline to the same side along the central short axis. The provided lens is able to optimally distributing light of the LED light source; by an installation manner without an elevation, the light irradiating the car lanes is increased if the LED street lamp is provided with the lens, whereas the light irradiating the pavement is reduced, thereby greatly reducing the glare and increasing the utilization ratio of light energy; the asymmetric LED street lamp lens has a good application foreground in the field of illumination.

The invention discloses a multi-agent traffic simulation parallel computing method, which uses a multi-thread parallel computing mode to carry out path optimization, state updating and simulation data storage and display on an agent vehicle, can calculate road impedance according to real-time road conditions, calculates and updates the optimal path of the vehicle in combination with vehicle attributes, the thread distribution can be adjusted according to the actual calculation time consumption, and the thread load is balanced. The invention further discloses a multi-agent traffic simulation parallel computing device, individual differences of different simulation vehicles are fully considered, common simulation vehicles and intelligent vehicles capable of carrying out information interaction are supported, a multi-thread parallel computing mode is used, the CPU computing power of equipment can be fully exerted, the simulation efficiency is improved, and dynamic path planning can be realized, so that the simulation result better fits the actual situation. The method can be used for researching vehicle behaviors, predicting traffic flow states and testing management and control measures, and help is provided for relieving traffic congestion, reducing traffic hidden dangers and reducing resource waste.

The invention relates to the field of automobile driving safety early warning, and in particular relates to a fatigue driving early warning method and system based on a decision algorithm. The fatigue driving early warning method comprises the steps that S1 in a detection period, an information acquisition module acquires driver behavior characteristic information and vehicle driving characteristic information and sets decision influence weight factors of each piece of information; S2 a terminal mainboard calculates a fatigue state value of a driver; and S3 the terminal mainboard compares the fatigue state value with a fatigue comparison value, obtains the attenuation amplitude and generates fatigue early warning. Compared with the prior art, the method has the advantages that through the decision algorithm, the characteristic behaviors of fatigue driving are weighted and analyzed, the fatigue state of the driver can be accurately evaluated, corresponding early warning is made according to the evaluation result, the fatigue driving early warning precision is improved, and meanwhile the traffic hidden danger caused by fatigue driving is reduced.

The invention discloses a novel indicator device for municipal roads. The device comprises a base and a support plate. The center of the upper end of the base is fixedly provided with a support block; the lower end of the support plate is provided with a support board; the bottom of the support board is rotatably connected with the support block through a rotating shaft; the base is also provided with a semicircular angular adjusting ring; the angular adjusting ring is provided with adjusting holes in different angles; the support board is provided with mating holes which match with the adjusting holes; the support board is fixedly connected with the angular adjusting ring through the bolt bars installed in the mating holes. By means of the novel indicator device for municipal roads of the invention, traffic hidden troubles and driving safety problems due to collapse of indicators are effectively reduced; and the support plate can be inclined by means of the matching of the mating holes in the support board and the adjusting holes in the angular adjusting ring at different angles so that the whole device can be stably placed on roads or bridges having inclinations.

The invention discloses a highway solar guide lamp under a severe environment. The highway solar guide lamp under the severe environment comprises a snow-prevention snoot, a lampshade and a snow throwing device, the snow-prevention snoot is installed at the top end of the lampshade, and the snow throwing device is fixed to the bottom end of the lampshade; and a solar power generation panel, a storage battery and LED lamp beads are installed in the lampshade, and the solar power generation panel and the LED lamp beads are electrically connected with the storage battery. According to the highwaysolar guide lamp under the severe environment, traffic hidden dangers caused by highway guiding in the severe environment are reduced, active light emitting is achieved through the arrangement of thesolar power generation panel, a second square light source is not needed, the problem that the guiding distance of a reflector is limited by the irradiation distance of a vehicle lamp is solved, thesnow throwing device solves the snow falling prevention problem of the solar panel, the snow-prevention snoot is arranged in a convex lens mode, and the effect that the generating capacity of the solar panel is greatly improved within the limited area is achieved.

The invention discloses a driver road tension adjusting method and system based on micro-expression recognition; the method comprises the steps: firstly, disclosing a face micro-expression data set through a network, carrying out the preprocessing of the data set, and constructing a driver tension recognition model based on micro-expression recognition; then simulating driving by a driver, acquiring a facial micro-expression signal of the driver in real time, and performing preprocessing and feature extraction on acquired data to obtain ideal micro-expression data of the driver; and finally, in the actual driving process of the driver, acquiring a driver face micro-expression signal in real time, inputting the micro-expression signal into the constructed driver nervous emotion recognition model based on micro-expression recognition, recognizing the emotion of the driver, and further making a corresponding emotion regulation decision through interaction with the driver. According to the invention, traffic risks can be effectively reduced, traffic accidents caused by nervous emotion of a driver during driving are avoided, and the traffic road safety is improved.

The invention provides an overpass which enables motor vehicle drivers to steer motor vehicles to the wanted driving directions. The overpass is provided with a turning-round system in each direction without needing traffic lights. According to the overpass, a left-driving road is steered behind an overlapping part instead of being steered in the overlapping overhead part of a straight road, the left driving road is steered left by 180 degrees to become a semicircle with the direction opposite to the original driving direction after a height difference is caused by lifting the left driving road or lifting the straight road, the left driving road is opposite to a semicircular turning-round road which is also steered left by 180 degrees in an overhead mode without contacting after the semicircular turning-round road is lifted, and then the left driving road is steered right by 90 degrees and then enters the straight direction through descending to be steered left. According to the overpass, the motor vehicle drivers needing to steer the vehicles left can drive on the left, the motor vehicle drivers needing to steer the vehicles right can drive on the right, the motor vehicle drivers needing to go straight can drive in the middle, and road changing is not needed. The drivers can make preparations for turning round or steering the vehicles in advance, and the traffic lights are not needed.

According to amethod and device for expanding the view field range of the driver, the road condition data collected by the vehicle-mounted sensor is rendered in the view field of the user in real time, and the view field range is expanded while the user observes the front road condition. According to the method and the device, the sight of a user does not need to be switched back and forth betweena front road surface and vehicle-mounted central control electronic equipment. And a user is helped to know surrounding road conditions in time under insufficient light, dazzle and severe weather, sothat the traffic hidden danger is reduced.

The invention discloses a road vehicle lane change model calibration and decision-making method and device based on headway time. The vehicle lane change model calibration in the invention includes: acquiring vehicle and road actual measurement data, including whether there is an adjacent lane in the lane where the vehicle is located, The distance between the vehicle and the front and rear vehicles in the same lane, adjacent lanes and the speed of related vehicles; determine the direction of vehicle lane change, determine whether there is a motivation for lane change and the target lane according to the time headway; construct a logistic vehicle lane change model based on the time headway ;Calibrate the vehicle lane-changing model by extracting the conditional data of the target vehicle successfully changing lanes and refusing to change lanes. The invention has low complexity, strong applicability, less data demand, high calculation efficiency and good simulation effect, and can obtain a reliable vehicle lane-changing model through a small amount of vehicle and road actual measurement data for vehicle lane-changing behavior simulation, and then can be used It is used to study the lane changing behavior of vehicles, predict the state of traffic flow, and provide help for alleviating traffic congestion, reducing traffic hazards, and reducing waste of resources.

Road surface ice and snow clearing equipment driven by a leather belt transmission mode comprises a connection frame, a link mechanism, a middle wheel disc frame, a left side frame, a right side frame, a spring, a middle wheel disc, an inner wheel disc, an outer wheel disc, a pin shaft, an upright column, ice and snow clearing cutters, a transmission shaft, a hydraulic jacking device, a speed reducing device, a main belt pulley and a leather belt, wherein the connection frame is connected with the middle wheel disc frame through the link mechanism, and the middle wheel disc frame is perpendicular to the ground and is provided with the hydraulic jacking device. The middle wheel disc frame is connected with the left side frame and the right side frame through the pin shaft, and a left side wheel disc and a right side wheel disc can be tightly attached to the ice and snow ground through spring jacking. The transmission shaft is connected with the wheel discs through the main belt pulley, and the ice and snow clearing cutters are respectively installed at the bottom of the wheel discs. The road surface ice and snow clearing equipment driven by the leather belt transmission mode has the advantages that a combination process with a tractor or a large engineering vehicle and the like can be achieved conveniently; compacted ice and snow layers on a road surface are cleared cleanly by the ice and snow clearing cutters under the driving of the wheel discs, and therefore the traffic hidden danger is effectively reduced.

There is a horn installation head on the left end of the steering handle bar for indicating the width of the bicycle, and an indicator light memory at the right end. The indicator light is installed in the indicator light memory. An adjustment switch is provided, and a handlebar metal pipe is provided at the lower end of the indicator light. The present invention has reasonable design, simple structure, reduces traffic hazards, is convenient to use, ensures personal safety, and is low in cost.

The invention discloses a system and a method for detecting and relieving driving fatigue based on electrical acupoint stimulation. The system comprises an electroencephalogram acquisition device, an upper computer, a lower computer and an electrical stimulation instrument, an input end of the electroencephalogram acquisition device is connected to the cerebral cortex of a driver, an output end of the electroencephalogram acquisition device is connected with the upper computer which is connected with the lower computer, the lower computer is connected with an input end of the electrical stimulation instrument, and a pulse output end of the electrical stimulation instrument is connected to a meridian point, capable of reliving brain fatigue, of the driver through an electrode. The method includes: acquiring electroencephalogram signals of the driver in real time; and extracting fast-wave and low-wave frequency band signals in the electroencephalogram signals, computing a ratio of fast-wave average power spectra to low-wave average power spectra, judging the driving state of the driver according to reduction of the ratio, and controlling the electrical stimulation instrument to start and enter a corresponding working mode. Driving states of the driver are monitored in real time, and electrical stimulation is performed to the driver in good time, so that driving fatigue is relieved better, driving safety is improved, and hidden danger of traffic caused by fatigue driving is reduced.

The invention discloses a tunnel lining belt press-in mold pouring process and a method for monitoring the pressure and fullness of the lining concrete, including the construction preparation process, the concrete filling construction process and the acceptance construction process; the invention is simple and practical, and utilizes top distributed pressure The density sensor can effectively and intuitively check the full state of the vault concrete. It is easy to understand and suitable for workers to operate; it saves manpower and financial resources; it cannot completely solve the two types of problems of density and fullness at the same time. The feedback signal of this combined monitoring technology is used to determine the lining. Concrete pouring end standard; according to the pressure and full state monitoring results, the end time of concrete pouring can be comprehensively judged, and the safety state of the carrying capacity of the trolley itself can be dynamically monitored during the construction process, which provides a reference for operators and management, and reduces tunnel accidents. A series of problems in the lining vault, such as voids, voids, lack of compactness, water leakage, construction joint collapse, construction joint loss, and water stop deviation, reduce risks and hidden dangers to tunnel traffic operations.