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6668 results about "Driving safety" patented technology

Active safety type assistant driving method based on stereoscopic vision

InactiveCN102685516AAvoid tailgatingPreventing accidents such as frontal collisionsImage enhancementImage analysisActive safetyDriver/operator
The invention discloses an active safety type assistant driving method based on stereoscopic vision. An active safety type assistant driving system comprehensively utilizes an OME information technology, consists of a stereoscopic vision subsystem, an image immediate processing subsystem and a safety assistant driving subsystem and comprises two sets of high resolution CCD (charge-coupled device) cameras, an ambient light sensor, a two-channel video collecting card, a synchronous controller, a data transmission circuit, a power supply circuit, an image immediate processing algorithms library, a voice reminding module, a screen display module and an active safety type driving control module. According to the active safety type assistant driving method, separation lines and parameters such as relative distance, relative speed, the relative acceleration and the like of dangerous objects such as front vehicles, front bicycles, front pedestrians and the like can be accurately identified in real time in sunny days, cloudy days, at nigh and under the severe weather conditions such as rain with snow, dense fog and the like, so that the system can prompt a driver to adopt countermeasure through voice and can realize automatic deceleration and emergency brake at emergency situation, thereby ensuring safe travel in a whole day.
Owner:李慧盈 +2

Remote monitoring method and system based on driving safety

The invention discloses a remote monitoring method and a remote monitoring system based on driving safety. The method comprises the steps that an intelligent automobile data recorder acquires driving behavior information of a driver; the intelligent automobile data recorder performs dangerous behavior analysis on the driving behavior information to acquire dangerous driving behavior information based on the driving safety and submits the dangerous driving behavior information to a cloud server; the cloud server analyzes data on the intelligent automobile data recorder to generate a data report. According to the method, the information such as the driving behavior and an automobile is submitted to the cloud server, so that the whole driving habit of the driver can be marked or graded, monitored and proofed due to logic analysis of the cloud, and the information of the driving behavior and the automobile is effectively monitored and managed; therefore, not only is the driving safety improved, but also the automobile management flexibility is improved. Compared with the prior art, the remote monitoring method and the remote monitoring system have the advantages that only a process of a bad driving behavior which is detected by a vehicle-mounted terminal system is monitored and stored, so that a wireless transmission bandwidth and storage resources of a server are saved.
Owner:珠海大轩信息科技有限公司

Real-time optimal damping control algorithm of automobile semi-active suspension system

The invention relates to an optimal damping control algorithm of a continuous-control-type semi-active suspension system, and the optimal damping control algorithm is researched and developed for meeting the taking comfort of people and automobile driving safety requirements well. The control algorithm comprises the following steps of: measuring automobile body vibration acceleration signals, automobile speed signals and rotation angle signals by utilizing a sensor; sensing the automobile driving road condition and suspension system damping ratio according to the signals measured by the sensor; according to the measured automobile body and automobile wheel vibration acceleration, obtaining the automobile body and automobile wheel vertical motion speed and the relative motion speed between an automobile body and automobile wheels; determining the optimal damping coefficient and the damping force of a shock absorber required under the current automobile speed and road condition according to automobile parameters, outputting stepping motor rotation angle control signals through a controller, and controlling and regulating the area of the damping throttling hole of a controllable shock absorber, so that the semi-active suspension system achieves the required optimal damping and damping force. The semi-active suspension optimal damping control algorithm provided by the invention is simple and easy to implement, has low requirements for the dynamic property of an actuating element, and is beneficial to the applications and popularization of the semi-active suspension.
Owner:SHANDONG UNIV OF TECH

System and method for guaranteeing driving safety

The invention discloses a system and a method for guaranteeing driving safety and a method for guaranteeing the safety of vehicles and drivers by utilizing the system. The system for guaranteeing the driving safety comprises a vehicle-mounted terminal arranged in a vehicle and a control center communicated with the vehicle-mounted terminal, wherein the vehicle-mounted terminal comprises a vehicle-mounted terminal processor, an overspeed detection module, a fatigue detection module, a lane departure detection module, a driving recording module, a danger prompting module, an emergent salvation module and a wireless communication module. The overspeed detection module, the fatigue detection module, the lane departure detection module, the driving recording module, the danger prompting module, the emergent salvation module and the wireless communication module are connected with the vehicle-mounted terminal processor respectively. The system and the method for guaranteeing the driving safety have the advantages that dangerous driving behaviors of the drivers can be detected and prompted in real time, a danger prompt can be sent to vehicles at the same road section with a dangerous vehicle, the drivers are prompted to avoid the dangerous vehicle or change lanes, meanwhile dangerous driving information is comprehensively analyzed through the control center, then further suggestions are provided, and the drivers are classified.
Owner:XIDIAN UNIV

Intelligent gender and emotion recognition detection system and method based on vision and voice

The invention discloses an intelligent gender and emotion recognition detection system and method based on vision and voice. The system comprises an image-based emotion and gender recognition module, a voice-based emotion and gender recognition module, a fusion module and a personalized intelligent voice interaction system, wherein the image-based emotion and gender recognition module is used for recognizing the emotion of a person in a vehicle according to a face image and recognizing the gender of the person in the vehicle according to the face; the voice-based emotion and gender recognition module is used for recognizing the emotion and the gender of the person in the vehicle according to voice; the fusion module is used for matching the gender recognition results, fusing the emotion recognition result, and sending the results to the personalized intelligent voice interaction system; and the personalized intelligent voice interaction system is used for voice interaction. By adopting the system and the method, the gender/ emotion recognition accuracy is improved via fused images and voice recognition results; the driving experience and the driving safety are improved via the personalized intelligent voice interaction system; and the using fun of vehicle-mounted equipment and the accuracy of information service are improved by voice interaction.
Owner:BEIJING ILEJA TECH CO LTD

Millimeter-wave time-division linear frequency modulation multiple-target detection colliding-proof radar for car

The invention relates to the technical field of radio fix radars, in particular to a millimetre wave time-division linear frequency modulation multi-object detection automobile anti-collision radar. The radar of the invention adopts full phase parameter receiving/emitting benchmark signal and time-division and time-sequence asynchronous control to receive/emit a dual-purpose quasi-light integrated medium lens antenna array, and scans the objects possible to be collided on the warning road surfaces by DSP according to lane scanning wave beam; the road situation photographing combined with the vehicle speed and GPS data MCU to control time-division n-passage modulation frequency and waveform millimetre wave linear locking phase frequency modulation; emission is carried out sequentially by R/T2, a circulator, a wave beam switch and the antenna array; echo passes through the antenna array, the wave beam switch, the circulator, the R/T1, low noise high amplifier, subharmonic mixing, middle amplifier and a time-dividing circuit and multi-object signal corresponding matching filter wave and is processed and controlled by MCU at DSP; when a plurality of road barriers are encountered, the orientation, distance and relative speed are determined by DSP restriction virtual warning; three-dimensional images are displayed by a CRT; the closer the distance of the object is, the higher the resolution is; the object which is closest to the vehicle is recognised; sound and light alarm are carried out when the distance is less than safety distance; when the distance is near to the dangerous distance, the vehicle can intelligently avoid the barrier or reduce the speed or brake; the radar of the invention can make a choice according to the control reference road situation, the vehicle speed and the GPS data, thus obviously improving the driving safety of the vehicle.
Owner:阮树成

Stereoscopic vision based emergency treatment device and method for running vehicles

The invention relates to a stereoscopic vision based emergency treatment device and method for running vehicles, wherein the device comprises a binocular-vision image pick-up unit, an on-board bus interface, a central processing unit, a vehicle braking control system and an acousto-optic alarm circuit. The binocular-vision image pick-up unit is used for capturing an image of a road in front of a vehicle; the DSP (digital signal processor) based central processing unit is adopted for carrying out real-time quick calculation on a visual image so as to obtain a three-dimensional road scene, and compares the obtained three-dimensional road scene with a safe driving road model set up by a system so as to judge whether obstacles or dangers exist in the traveling direction of the vehicle; when adanger is found, the vehicle braking control system is started so as to reduce the speed of the vehicle and send an acousto-optic alarm to a driver; meanwhile, the central processing unit is connected with a vehicle sensor by an inter-vehicle bus so as to detect the state of the vehicle, and when the vehicle has mechanical or circuit faults, a braking system is started so as to reduce the speed of the vehicle and send an acousto-optic alarm. The device disclosed by the invention can be arranged on ordinary motor vehicles so as to avoid the occurrence of accidents or reduce the accident loss, thereby improving the driving safety performance.
Owner:HOHAI UNIV

Method for determining driving state of vehicle based on acceleration sensor

ActiveCN102167041APrevent dangerous driving behaviorEnsure driving safetyDriver/operatorOriginal data
The invention discloses a method for determining the driving state of a vehicle based on an acceleration sensor. The method comprises the following steps of: A, acquiring the longitudinal acceleration, the transverse acceleration and the vertical acceleration of an automobile by using a three-axial acceleration sensor; B, calculating a conversion matrix of an automobile coordinate system and an acceleration sensor coordinate system, acquiring the initial attitude of the acceleration sensor, namely the initial angle between the acceleration sensor and the automobile, and performing zero bias filtering processing on the acquired accelerations so as to acquire the acceleration value of the automobile coordinate system; and C, determining the driving state of the vehicle according to the acceleration values of a plurality of continuous automobile coordinate systems. In the method for determining the driving state of the vehicle based on the acceleration sensor, the original data is acquired by the acceleration sensor, and the driving state of the vehicle is determined by analyzing and processing three axial accelerations, so that the driving behaviors and the driving state of a driver are known, vehicle managers are assisted in normalizing the driving behaviors, dangerous driving behaviors are prevented, and driving safety is ensured.
Owner:SHENZHEN CASTEL WIRELESS TELECOMM

Pure electric automatic driving system

ActiveCN107797534AImprove riding safety experienceSafe and comfortable autonomous drivingAutonomous decision making processTotal factory controlCountermeasureInformation acquisition
A pure electric automatic driving system provided by the present invention comprises an environmental information acquisition system, a perception fusion unit, an intelligent decision unit, a vehiclemotion coordination controller and a vehicle execution system which are connected orderly, wherein the intelligent decision unit outputs the local paths that a vehicle can drive and the correspondingdriving behavior instructions to the vehicle motion coordination controller, and the vehicle motion coordination controller realizes the transverse motion control and the longitudinal motion control of the vehicle, so that the automatic driving system is modular in function division and normalized in information interfaces, the application scenes of the automatic driving functions are helpful to be expanded, and the riding safety experiences of the automatic driving vehicles, for example, the safe and comfortable automatic driving at a faster vehicle speed and on a faulted working condition, are improved. In addition, the vehicle motion coordination controller monitors the real-time state of the whole automatic driving system, so that the fault states can be identified timely, the reasonable countermeasures can be made, and the driving safety of the automatic driving under various states is guaranteed.
Owner:ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD

Dangerous goods transport vehicle dynamic monitoring method and early warning device

The invention relates to a dangerous goods transport vehicle dynamic monitoring method and an early warning device. The method comprises the following steps: (1) arranging the early warning device which comprises a collision, rollover and temperature and pressure early warning module, an early warning arithmetic and a threshold value; (2) acquiring the acceleration, the dip angle, the temperature/pressure and image signals of a goods wagon; (3) carrying out calculation on each signal and comparing the signal with the preset threshold value and sending out a corresponding alarm command; (4) displaying alarm information and sending the alarm information to a remote monitoring center through a global position system/general packet radio system (GPS/GPRS); (5) after the alarm is completed, returning to the step (2); and (6) carrying out real-time monitoring on a goods state and the alarm information by a driver through displaying. The corresponding early warning device comprises the GPS/GPRS, cameras, a card reader, a triaxial acceleration sensor, a display screen, an artificial alarm, a buzzing alarm, a temperature/pressure sensor, a dip angle sensor, a secure digital (SD) card storage and an electronic control unit which comprises a microprocessor. The collision, rollover and temperature and pressure early warning module is arranged in the microprocessor. The invention can be used for carrying out real-time monitoring on collision, rollover and temperature and pressure, thereby being beneficial to driving safety and rescue operation.
Owner:RES INST OF HIGHWAY MINIST OF TRANSPORT

Monocular vision vehicle distance measuring method based on road and vehicle information

The invention discloses a monocular vision vehicle distance measuring method based on road and vehicle information. The method can be adopted by a running vehicle on road to automatically measure the distance to the front vehicle according to the device equipped on the running vehicle, so as to realize the purposes of preventing vehicle rear-end collision and reminding drivers of driving safety. Specifically, a camera facing forward is mounted on the front part of the vehicle for collecting the front road and vehicle images; the lane marking line and the front vehicle are detected, and the vehicle license plate is also positioned; the vehicle distance is obtained through the transformation relationship of the lane width and the vehicle distance of the vehicle in the road image, or the vehicle distance is obtained through the transformation relationship of the size information of the license plate and the vehicle distance in the road image, or through the transformation relationship of the character height of the license plate and the vehicle distance in the road image. The invention can accurately measure the distance to the front vehicle, has high instantaneity, high robustness, low hardware cost, is applicable to various types of vehicles and is easy for popularization.
Owner:NANJING UNIV OF SCI & TECH
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