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3195 results about "Safe driving" 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

Smart active tyre pressure optimising system

Smart Active Tyre Pressure Optimising System [TPOS]102 is a highly time sensitive design and technique that acts instantaneously in sensing and controlling the tire pressure particularly in imminent and inevitable critical driving situations to reduce emergency & high speed breaking distance, mitigate—loss of traction, hydroplaning, roll over, loss of stability, over & under steering, break failure, loss of control due to puncture by smartly sensing, perform context aware computing and directing the Tyre Pressure Control Units [TPCU]104 to instantaneously control the tyre pressure in right time with right pressure on right tyres thereby actively controlling the footprint and sidewall deformation rate to enhance traction & stability simultaneously sustaining drivability or steerability ultimately to avoid or reduce the impact of collusion and overcome or mitigate critical situations for protecting the vehicles, occupants, pedestrians and other objects around or on the way; also according to design, configurations and scenarios the system instantaneously optimises the tyre pressure on all tyres for further safe driving till next restoration else restores the pressure to optimum preset value utilising inbuilt reservoir or other external restoration systems immediately after the vehicle overcomes the critical situation to continue with safe and comfortable driving. In critical situations TPOS performs sensing, pre computing, current computing for controlling the tire pressure during critical situation, post computing to optimise tire pressure after overcoming accordingly. TPOS 102 utilise smart and adaptive closed loop processing algorithm with predetermined and tested lookup table to instantaneously check and compare the effects between predetermined and tested real world scenarios to the actual real world scenarios for actively sensing, computing and controlling the tire pressure accordingly to mitigate the critical situations. The controlling of tyre pressure is computed mainly based on parameters comprising of sensor system, vehicle safety and stability systems, nature of breaking & break force distribution, tires upper & lower cut-off pressure values, sensing reservoirs and tires internal & external pressure, temperature, moisture, humidity, wheel & tire specifications, vehicle & wheel speed, acceleration & deceleration, vehicle orientation & axial rotation, transverse motion & lateral acceleration, tires position or angle of attack, load & torque distribution, tire traction, steering position, cornering effects, change in Centre of gravity, over & under steering, hydroplaning, sensing road conditions, etc and to further enhance the efficiency, the system interoperates with vehicles existing safety and stability systems like ABS, EBD, ESC, TCS, Rollover mitigation systems, ECU, BA, Precrash systems, suspension & vertical dynamics, radar assisted auto breaking, cruise control system, aerodynamics & airbrakes etc. Other aspects of present invention are controlling the tire temperature according to environmental temperature, moisture and humidity thereby to enhance traction and vary tire pressure according to change in centre of gravity & load, driving modes—comfort, standard and sports modes.
Owner:MUTHUKUMAR PRASAD

Lumbar support for car seat

A lumbar support for a car seat includes a support element formed of a plate spring having a high elasticity to be positioned between traverse fixing bars which are mounted at upper and lower parts in a seat back for supporting a lumbar portion of a driver, and having a plurality of support wings formed at both sides and folded outwardly for surrounding the lumbar portion of the driver and a curved protrusion optionally formed in the center for supporting the lumbar portion of the driver, coupling units for coupling the support plate with the traverse fixing bars, a supporting height control element for steplessly controlling a protruded height of the support plate which is selectively and curvedly protruded at a side of the support plate, and a pelvic supporting element formed at a lower part of the support plate and connected to the support plate to contact and support hips of the driver, wherein the contact between the seat and the driver may be improved by forming the pelvic supporting element at the lower part of the support plate for stably supporting the lumber region and the pelvic region of the driver seating in the seat, so that it is possible to promote the safety driving by preventing the driver from being tired easily even in case of the long time driving, and to prevent the bad pose of the driver by the stable supporting of the lumbar region and the pelvic region of the driver, thereby maintaining the safety and the health of the driver.
Owner:HONG CHEONG MYUNG

AR (augmented reality)-based vehicle-mounted live-action safe navigation method

The invention relates to an AR (augmented reality)-based vehicle-mounted live-action safe navigation method which comprises the following steps of: acquiring a real-time image in front of a vehicle, carrying out characteristic object extracting treatment on the real-time image, and overlapping an object image attached with a recognition feature with the real-time image; extracting real-time navigation cartographic information from a satellite navigation map for overlapping to form a second image with the navigation information; and when one object attached with the recognition feature in the image triggers an alarm threshold value, promoting a driver to drive on an optimal safety route by an alarm image or sound. The method has the advantages that a novel navigation method which combines cartographic navigation software with the AR (augmented reality) technology can be realized, and a destination can be conveniently found; the destination can be combined with the live-action due to the live-action navigation provided by the invention, the destination is identified on the live-action, and the method is more convenient for users; and the distance between front and back vehicles can be displayed timely, and the deviation from a lane line can be prompted, thereby assisting in safe driving.
Owner:四川长虹佳华信息产品有限责任公司

Vehicle driving state evaluating method based on road-switching behavior detection

The invention discloses a vehicle driving state evaluating method based on road-switching behavior detection, comprising the steps of: carrying out video acquisition and real-time processing on front road conditions by using a camera so as to achieve purposes of monitoring dangerous driving behaviors of road-switching, long-time line-pressing driving and the like of a vehicle and immediately warn, i.e. arranging a camera facing the front direction inside the vehicle to obtain front road condition information; detecting and tracking a lane line; judging the current position state of the vehicle, if the vehicle is in a line-pressing state, carrying out state tracking to judge whether the vehicle is subjected to lane-switching operation or not; if the vehicle is subjected to the lane-switching operation, judging the behavior danger level of the vehicle according to the lane-switching times within a recent period of time; and if the total time in the line-pressing state within the recent period of time is m percent, making an alarm of the long-time line-pressing driving. For the vehicle active safe driving, by adopting a computer monocular vision and image processing technology, the invention has characteristics of simple system configuration, low cost, good real-time and capability of being applied in various climatic environments in the daytime and at night.
Owner:NANJING UNIV OF SCI & TECH

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

Super highway auxiliary system

ActiveCN107161146AEasy to assistAuxiliary effectiveDriver/operatorRadar
The invention provides a super highway auxiliary system, and belongs to the field of safe driving of automobiles. The super highway auxiliary system comprises a radar sensor, a camera sensor, a central controller and a vehicle-mounted ECU execution unit, wherein the radar sensor is used for detecting environmental information and vehicle information around a current vehicle; the camera sensor is used for collecting the environmental information around the current vehicle; the central controller is used for receiving the information transmitted from the radar sensor and the camera sensor, collecting the vehicle information of the current vehicle transmitted by an ECU, integrating the information for processing and judgment, and issuing an instruction to the relevant vehicle-mounted ECU execution unit; and the vehicle-mounted ECU execution unit is used for receiving the instruction and controlling the current vehicle to execute the instruction. Through the adoption of the super highway auxiliary system provided by the invention, the hands and feet of a driver are liberated to the greatest extent, so that driver fatigue due to a monotonous driving mode is avoided; the seamless connection between super highway assist and traffic jam assist is realized; and two cases that changing lanes is dangerous and changing lanes is safe are distinguished by the system, and different assists are provided for the driver, so that not only is the lane change security guaranteed, but also the convenience of lane change is provided, and the driving pleasure is improved.
Owner:GEELY AUTOMOBILE INST NINGBO CO LTD +1

Method for automatically generating vehicle safe driving guarantee scheme based on multi-data fusion

The invention provides a method for automatically generating a vehicle safe driving guarantee scheme based on multi-data fusion. The method comprises the following steps: a roadside sensor collects dynamic information, feature information, road condition information and traffic state information of a driving vehicle within the detection range of the roadside sensor; the vehicle provided with a sensing and positioning vehicle-mounted unit dynamically collects dynamic information, surrounding road conditions and environment information of the vehicle in the driving process; the road side sensorand a vehicle-mounted unit perception sensor simultaneously acquire whether an abnormal event occurs on a road and an abnormal behavior target in real time in a static scanning and dynamic scanning data acquisition mode; and the system starts an anti-collision safety principle to judge whether collision occurs between targets in the future or not, and if any one of the situations occurs, the system issues corresponding early warning information, control information and prompt information to different types of vehicles about to pass through the abnormal area through different client special communication channels to change the motion states of the vehicles so as to guarantee the safety of the vehicles and pedestrians.
Owner:河北德冠隆电子科技有限公司

Driving safety monitoring system based on face orientation and visual focus

The invention discloses a driving safety monitoring system based on face orientation and visual focus, which comprises a vision sensor and an intelligent processor. The intelligent processor comprises an image acquisition module, a complexion area detection module, an edge extraction module, an eye detection module, a face orientation analysis module and a driver safety driving judgment module, wherein the complexion area detection module is used for converting an RGB color space into a YCrCb color space and detecting a complexion area; the edge extraction module is used for adopting a Canny operator to carry out edge extraction so as to acquire a head image outline; the eye detection module is used for carrying out Hough conversion for the marginalized face and positioning eyes; the face orientation analysis module is used for determining a mouth area, positioning the mouth, calculating left and right areas of the face respectively by using the eyes and the mouth as reference, and calculating the ratio of the left and right areas of the face; and the driver safety driving judgment module is used for judging an unsafe driving state if the calculated ratio of the left and right areas of the current face is out of a preset interval according to the preset interval of the ratio of the left and right areas of the face, and sending out an alarm command. The driving safety monitoring system has strong capacity of resisting disturbance and high accuracy.
Owner:ZHEJIANG UNIV
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