239results about How to "Reduce the incidence of traffic accidents" patented technology

The invention discloses a vehicle driver fatigue monitoring and early warning system and a vehicle driver fatigue monitoring and early warning method. The system comprises a face detecting and tracking module used for acquiring a face image, analyzing and processing the obtained face image to obtain the position of a face region; a feature point positioning unit used for carrying out face key feature point positioning; a normalization processing and feature extraction unit used for carrying out normalization treatment on the face image, carrying out feature extraction, extracting the eye feature information, the mouth feature information and the head feature information; a PERCLOS fatigue degree quantization index calculation unit used for acquiring the personalized feature information corresponding to a driver in a pre-established driver personalized information database according to the obtained feature information, classifying and judging the eye opening and closing states of the driver and counting the eye closing time, and performing the calculation of a PERCLOS fatigue degree quantitative index; and a fatigue degree judging unit used for judging whether the driver is in the fatigue driving state or not according to the PERCLOS fatigue degree quantitative index.

The invention relates to an intelligent monitor device for vehicle driving safety, wherein, a main control chip is connected with a lane departure early warning module and a CF card, storing road image information and lane departure early warning; the main control chip is connected with an early warning information display module by a serial signal wire, displaying various early warning information; the main control chip is connected with a phonetic early warning module by a SPI bys, giving phonetic early warning information; the main control connected with a GPS module and a GSM module by a serial port, obtaining the information about the position and speed of vehicles and realizing the communication with a monitor center; the main control chip is connected with a safety belt buckle sensor by an I/O port, judging whether the safety belt is well tied or not; a voltage conversion chip output is connected with all modules, providing energy for all modules. The intelligent monoitor device for vehicle driving safety has the advantages of strong real-time performance, good stablity, low cost, good expansion and strong anti-interference performance.

The invention discloses an emotion and fatigue detecting auxiliary driving system based on hybrid brain computer interface technology. The system comprises the components of a brain electric signal acquisition part, a brain electric signal processing and analyzing part, a fatigue alarming and voice control on-vehicle electric appliance part. The brain electric signal acquisition part acquires an analog amount brain electric signal and outputs the signal to the brain electric signal processing part. The brain electric signal processing part performs processing on the brain electric signal, calculates a driver fatigue degree and further transmits a result to the fatigue alarming and voice control on-vehicle electric appliance part. The fatigue alarming and voice control on-vehicle electric appliance part performs corresponding alarming according to the obtained result and further transmits the alarm to an electric appliance/equipment control module for controlling on-vehicle electric appliance/equipment. The emotion and fatigue detecting auxiliary driving system performs detection on a fatigue and emotion condition of a driver in a driving process and eliminates a potential safety hazard which is generated by the driving fatigue and road rage driving, thereby reducing generation rate of traffic accidents, realizing auxiliary voice control on equipment such as air conditioner, multimedia equipment and sunroof, and improving driving safety.

The present invention relates to an active anti-dazzling method and an automobile active anti-dazzling device. The method is to use a dimming glass provided with a plurality of mutually independent liquid crystal film partitions as the front windshield of the automobile, and detect the lights of various light sources in front of the automobile in real time. Strong, find out the light source that will cause glare to the driver of the car, and find the division of the intersection point of the light from this light source to the human eye on the dimming glass through the positioning of this type of light source, the driver's eyes and the dimming glass , adjust the light transmittance of the corresponding partition by adjusting the current. The device includes a front windshield, a controller, light intensity detection equipment, light source position detection equipment and human eye positioning equipment. Independent partitions, each partition, each detection device and human eye positioning device are all data connected to the controller. The invention can actively prevent glare, improve driving safety, and can effectively delay the aging of automobile interiors.

The invention provides an active safety control method for an automobile based on millimeter wave radar detection and image recognition and an active safety control device for the automobile based on the millimeter wave radar detection and image recognition. The method comprises the steps of actively probing whether a target (in particular a moving target) exists in front of a single lane and displaying the information of the front side on a vehicle-mounted intelligent information terminal. A system can be used for transmitting a barrier back to the vehicle-mounted intelligent terminal through a camera on the front side; and the terminal can be used for determining whether the barrier is the automobile based on the image recognition. The system can be used for automatically determining a safe distance according to the real-time speed of the vehicle; if the target is in the range less than the safe distance, the vehicle-mounted information intelligent terminal can horn to remind the user; and if the user fails to implement due response, an alarm can be sent out by the vehicle-mounted information intelligent terminal to a vehicle monitoring center, and a remote braking mode is adopted at the vehicle monitoring center to brake the vehicle, so that the active driving safety index can be improved.

The invention provides a self-adaptive tidal lane and crossing transition system based on LED traffic signs and a control method. A traffic flow information acquisition device C collects real-time traffic flow data, and sends the traffic flow data to a lane division analysis and calculation device H; then, the lane division analysis and calculation device H carries out analysis and calculation to obtain a real-time lane division scheme, and the scheme is sent to a display control device X; and finally, road markings LMB and crossing guidance sign display LKX display a road clearing process and the lanes and crossings obtained after transition. The system realizes self-adaptive dynamic lane switching according to the traffic flow information. The self-adaptive tidal lane and crossing transition system, compared with the manual transition mode, accords with the idea of intelligent traffic better, so that the problems of tidal lane crowding phenomenon and crossing traffic flow concentration can be solved to the largest degree, and energy is saved and discharge is reduced.

The invention discloses a safety accessory system and method for vehicle speed limiting. The accessory system comprises a vehicle speed acquisition device (100), a user setting device (101), an information receiving device (102), an overspeed warning device (103), and a speed-limiting control device (104) which acquires real time vehicle speed, user limitation vehicle speed and pavement limitation vehicle speed respectively from the vehicle speed acquisition device (100), the user setting device (101) and the information receiving device (102), and sets the lower one of the user limitation vehicle speed and the pavement limitation vehicle speed as an overspeed limitation threshold value, when the real time vehicle speed exceeds the overspeed limitation threshold value, overspeed is confirmed, under which the overspeed warning device is controlled to act so as to remind the driver of utilizing the accessory system and method provided by the invention, so that the driver is forced to slow down actively under the condition of not affecting the driver's driving.

The invention provides an adaptive signal method capable of avoiding deadlock of an intersection and a device, which relate to the field of intelligent traffic. The method includes acquiring the number of vehicles at the intersection and the vehicle speed of an exit section in a current traffic direction; and switching the phase of an intersection signal into the phase of a temporary signal when the number of the vehicles at the intersection is larger than a threshold value and the vehicle speed of the exit section is lower than a threshold value. The phase of the temporary signal includes prohibiting vehicles in the current traffic direction from running into the intersection and prohibiting traffic in a vehicle flow direction conflicting with the current traffic direction. Whether the phase of the temporary signal needs to be switched in or not is determined by means of judging the number of the vehicles at the intersection and the vehicle speed of the exit section corresponding to the traffic signal, the traffic in the vehicle flow direction conflicting with the current traffic direction is prohibited within the phase of the temporary signal, accumulation of the vehicles at the intersection is avoided, deadlock of the intersection is stopped, traffic efficiency of the intersection is improved, urban traffic jam is relieved, and traffic accident rate is reduced.

The invention discloses a guide type highway anti-fogging system, which comprises a visibility detector, an anti-fogging early warning display screen and an information integration controller, wherein the visibility detector is arranged in a distance meeting lowest safety testing requirements on the way of the highway, and the anti-fogging early warning display screen is arranged in front of the visibility detector according to the running direction of a vehicle; the visibility detector sends real-time visibility data of the road to the information integration controller when detecting suddenreal-time visibility change, the real-time visibility data is compared with built-in data in a database and a control threshold value, and the anti-fogging early warning display screen is started immediately when the visibility is lower than the stipulated threshold value. The anti-fogging system is scientific, rational and practical, takes the real-time visibility data as a basis for starting the early warning display and guide devices on foggy days, can discover and early warn mass of fog and the like which cause sudden visibility reduction in time, effectively reduces the incidence rate oftraffic accidents when the visibility is low on foggy days, and ensures road traffic safety.

The invention relates to an active glare prevention method and device based on an OLED display technology. The method comprises the steps that an OLED organic thin film provided with a plurality of mutually-independent OLED organic thin film partitions is inlaid in a windscreen; the light strength of each light source is detected in real time; a light source which enables a driver of a vehicle to feel glaring is found, and the light source, eyes of the driver and the windscreen are positioned; and a partition, on the windscreen, of the focus of a light ray of the light source irradiating toward the eyes of the driver is found, and a drive voltage is controlled to adjust the light transmittance of the corresponding partition. The device comprises the windscreen provided with the OLED organic thin film, a controller, light strength detection equipment, light source position detection equipment and human eye positioning equipment; the OLED organic thin film is provided with the multiple mutually-independent OLED organic thin film partitions; and each partition, each piece of detecting equipment and the human eye positioning equipment all are in datum connection with the controller. According to the active glare prevention method and device based on the OLED display technology, active glare prevention can be achieved, driving safety is improved, and aging of the vehicle interior can be effectively retarded.

The embodiment of the invention provides a driving state detection method and device, a driver monitoring system and a vehicle. The driving state detection method comprises the steps of making head posture detection and eye state detection on a driver image to acquire head posture information and eye state information; and determining detection results of the fatigue state and the distraction state of the driver according to the head posture information and the eye state information. According to the embodiment of the invention, the joint detection of the fatigue state and the distraction state of the driver is realized in combination with the head posture and the eye state, so that corresponding measures can be taken in time when the driving state of the driver is poor, the driving safetyis improved, and the road traffic accident rate is reduced.

The invention discloses a road quality detection method based on crowd computing. The method comprises the following steps of 1: acquiring road quality information in a vehicle driving process based on mobile crowd computing technology; 2, constructing a sample set by data with marked road quality categories based on an information processing method using crowd computing technology, and extracting a road quality category characteristic; 3, cleaning, fusing and classifying the acquired data, marking unknown road quality by using the road quality category characteristic to obtain the actual road quality information; and 4, enabling the actual road quality information to provide service for vehicle drivers, who can adjust driving strategies according to received road condition information, through the WebGIS, and to provide data support for the road maintenance plan establishment of a road maintenance unit. The method can improve driving safety to a certain extent, reduce the incidence of traffic accidents, and provide data support for the road maintenance plan establishment of the road maintenance unit.

The invention relates to a highway intelligent aided guidance system based on a GPRS (General Packet Radio Service)/CDMA (Code Division Multiple Access) wireless network and a control method thereof. The highway intelligent aided guidance system based on the GPRS/CDMA wireless network is characterized by comprising a wireless network composed of a traffic information board node, a variable speed-limiting signboard node, a visibility detection node and a background monitoring center, wherein the background monitoring center is connected with the GPRS/CDMA wireless network, initializes settings of the traffic information board node, the variable speed-limiting signboard node and the visibility detection node and monitors the working state of the nodes; meanwhile the background monitoring center formulates an overall guidance scheme according to road condition parameters sent by the visibility detection node and guidance content fed back by the traffic information board node and the variable speed-limiting signboard node, and sends guidance adjusting commands to the corresponding traffic information board node and variable speed-limiting signboard node through the GPRS/CDMA wireless network; and the background monitoring center informs a highway department to take emergency measures such as road closure and the like under a particularly severe road condition.

The embodiment of the invention discloses a driving early warning method and a related product. The method is applied to electronic equipment of a driving vehicle, the electronic equipment is in communication connection with at least one camera arranged at at least one position of the driving vehicle, the method comprises the steps that driving information of the driving vehicle is obtained, and the driving information comprises the motion state of the driving vehicle; Recognizing an obstacle target in the view blind area of the driver through multiple frames of images collected by a camera, determining the relative position between the vehicle and the obstacle target, and determining the relative motion state of the obstacle target relative to the driving vehicle according to the multipleframes of images and the motion state; And performing driving safety control on the driving vehicle according to the relative motion state and the driver view blind area partition. By means of the method, different countermeasures can be taken according to different conditions of the target obstacle, the accuracy and efficiency of driving early warning are improved, the safety of vehicle drivingis improved, and therefore the occurrence rate of traffic accidents is reduced.

The embodiment of the invention discloses a vehicle-mounted air conditioner control method and a related device. The vehicle-mounted air conditioner control method comprises the steps: obtaining firstinformation, wherein the first information comprises the in-vehicle temperature of a target vehicle; acquiring second information, wherein the second information comprises body surface temperatures of one or more target objects in the target vehicle; and according to the first information and the second information, adjusting the working parameters of the vehicle-mounted air conditioner in the target vehicle, wherein the working parameters comprise one or more of the air speed parameter, the air direction parameter, the air volume parameter and the temperature parameter of the vehicle-mountedair conditioner. By the adoption of the embodiment, the working parameters of the vehicle-mounted air conditioner can be automatically adjusted according to the temperature in the vehicle and the human body surface temperature, manual operation of a driver is reduced, and driving safety of the driver is guaranteed.

The invention discloses a vehicle control mode adjusting method and device and an unmanned vehicle. The method comprises the steps of acquiring position information and vehicle information of other vehicles in the surrounding area of a current vehicle, and the vehicle information is used for indicating vehicle characteristics, driver characteristics and historical driving tracks of the other vehicles; based on the vehicle characteristics and the driver characteristics of the other vehicles, marking the other vehicles to obtain vehicle marks for indicating vehicle forms; based on the position information, the vehicle characteristics and the historical driving tracks of the other vehicles, fitting the driving tracks of the other vehicles, and based on the fitting form, determining estimateddriving tracks of the other vehicles in a future target time period; and adjusting the control mode of the current vehicle based on the vehicle marks of the other vehicles and the estimated driving track. The technical problem that in the prior art, vehicle information of other vehicles cannot be displayed, and consequently collision is likely to happen between the vehicles is solved.

The invention discloses an intelligent monitoring system and method for driving behavior based on fingerprint identification. The system includes a terminal module and a cloud module; the terminal module is used to automatically collect the driver's fingerprint, detect illegal driving behavior in real time, and send the detection result to the cloud module; the cloud module is used to match the driver's fingerprint information with the database file, and judge whether the driver is authorized and whether he is driving without a license; send control instructions to the terminal module according to the judgment result; and store the illegal driving behavior information in real time; The intelligent monitoring method of driving behavior based on fingerprint identification provided by the invention, based on the above-mentioned system, is equivalent to a ubiquitous invisible "traffic policeman", which can automatically detect and save illegal driving behavior information and corresponding illegal personnel information; By associating illegal driving behaviors such as speeding, overloading or drunk driving with current drivers, unlicensed driving behaviors can be strictly controlled, and clues to suspects of hit-and-runs can be provided; automatic, real-time, and all-round monitoring of vehicles and drivers can be carried out.

Provided is an automobile overspeed alarm system based on a visibility meter. Current visibility is measured through the vehicle-mounted visibility meter, then collected data are transmitted to a single chip microcomputer, received speed information is fed back to an audible and visual alarm and a display screen through the single chip microcomputer, the visibility and a corresponding maximum running speed formulated by vehicular traffic laws are switched, and an actual speed and the maximum running speed are compared and respectively displayed to a driver. The automobile overspeed alarm system based on the visibility meter is mainly used in the situations of low-visibility weather such as rainy days, snowy days and greasy weather, and puts forward very high requirements for the automobile running speed. The automobile overspeed alarm system based on the visibility meter is applied so as to effectively remind the driver of paying attention to traffic safety and reduce probability of occurrence of traffic accidents, and has greater practical significance on daily transportation.

The embodiment of the invention discloses a driving state analysis method and device, a driver monitoring system and a vehicle, and the method comprises the steps: carrying out fatigue state detectionand distraction state detection of a driver for a driver image; in response to one of the fatigue state detection result and the distraction state detection result satisfying a predetermined alarm condition, outputting alarm information of a corresponding detection result satisfying the predetermined alarm condition; and/or, in response to both the fatigue state detection result and the distraction state detection result satisfying a predetermined alarm condition, outputting alarm information of the fatigue state detection result satisfying the predetermined alarm condition. According to theembodiment of the invention, the invention can achieve the common detection of the fatigue state and distraction state of the driver based on the driver image, also can avoid the distraction and disgusting of a driver caused by too many or too frequent alarms, and improves the safety of auxiliary driving and the user experience through the optimization of an alarm strategy.

The invention relates to an intersection vehicle state detection and V2X (Vehicle-to-Everything) broadcasting method and belongs to the intelligent transportation technical field. The method includesthe following steps that: a system platform is set up, and then, initialization and image calibration are performed on the system; a license plate number identification and tracking-combined method isadopted to process images collected by each camera, so that the license plate number, coordinates, speed and time of a vehicle in a single camera image are obtained; the information of the i-th frameof a camera n is updated in an intersection vehicle global information list, and the Kalman filtering algorithm is adopted to estimate and update the states of vehicles in other cameras, and therefore, the license plate numbers, coordinates, speeds and time of all the vehicles at the intersection at the same time point are obtained; and V2X roadside equipment is adopted to broadcast vehicle global information to the vehicles within the range of the intersection. With the method of the invention adopted, intersection vehicle state detection and V2X broadcasting under a visual condition can berealized, and data support is provided for the passage decision making of the smart vehicles of the intersection.