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310 results about "Car drivers" patented technology

Algorithm for monitoring head/eye motion for driver alertness with one camera

Visual methods and systems are described for detecting alertness and vigilance of persons under conditions of fatigue, lack of sleep, and exposure to mind altering substances such as alcohol and drugs. In particular, the intention can have particular applications for truck drivers, bus drivers, train operators, pilots and watercraft controllers and stationary heavy equipment operators, and students and employees during either daytime or nighttime conditions. The invention robustly tracks a person's head and facial features with a single on-board camera with a fully automatic system, that can initialize automatically, and can reinitialize when it need's to and provide outputs in realtime. The system can classify rotation in all viewing direction, detects' eye / mouth occlusion, detects' eye blinking, and recovers the 3D(three dimensional) gaze of the eyes. In addition, the system is able to track both through occlusion like eye blinking and also through occlusion like rotation. Outputs can be visual and sound alarms to the driver directly. Additional outputs can slow down the vehicle cause and / or cause the vehicle to come to a full stop. Further outputs can send data on driver, operator, student and employee vigilance to remote locales as needed for alarms and initiating other actions.
Owner:UNIV OF CENT FLORIDA RES FOUND INC +1

Enhanced vehicle sharing system

Rideshare cars operate within a network and each includes a car-camera device which allows each car driver to communicate with each other. The car-camera device uses object and facial recognition software to locate objects, people, sounds, QR codes and gestures, inside and outside the car and responds accordingly, providing a corrective action. The car-camera devices perform functions to ensure that both riders and drivers of rideshare services and drivers of car-share services are safe and can communicate with each other, before, during, and after a ride or drive.
Owner:OWL CAMERAS INC

In-Car Driver Tracking Device

InactiveUS20130244210A1Accurate and reliable sensor inputAccurate and reliable inputCosmonautic condition simulationsRegistering/indicating working of vehiclesBehavioral analyticsData source
Disclosed are a device and method for providing driver tracking and behavior analysis, initiated without concurrent user input, by the presence detection of one or more drivers of the vehicle. Vehicle motion inferred from a location aware device sensor, as well as other driver smartphone sensors and application use are logged and analyzed to determine risk factors associated with identified drivers. Internet data sources are further utilized for associating road conditions and traffic regulations with the logged locations of the vehicle. Logged and analyzed data from the identified drivers is aggregated for reporting on vehicle risk.
Owner:KAARYA

Computer System and Method for Search of a Parking Spot

Embodiments of the invention comprise a computer system and a method for recommending a driving route that reduces parking search time and parking costs. The system is configured to receive information about a current location of a car, a desired destination, and parking preferences, to process this information together with available traffic and parking information in order to calculate a recommended route a car should follow during a parking search, and to communicate the recommended route to the car driver. The driver is instructed to park at the first available spot along selected portions of the recommended route.
Owner:PARKWAYZ

Method and system for drivers' fatigue prealarming biological identification

A biological recognition method for prewarning the fatigue state of car driver features that the biologic information associated with fatigue, such as face information, cardiac rhythm and cerebroelectric wave, are sampled and then compared with their references to judge if the driver is in fatigue state. Its system is composed of the biologic signal sampling and recognizing unit and alarm unit. Said biolgoic signal sampling and recognizing unit comprises video image sensors, bioelectric information pick-up and signal processor.
Owner:NANJING UNIV

Homeland intelligence systems technology "H-List"

Homeland Intelligence Systems Technology “H-LIST” comprises nano-sensors embedded in a silicon substrate and etched / fused in a micro-fibered material alloyed with miniaturized steel responsive to preventing bullet penetration and to enable effective detection platform on an outfit for monitoring suspicious terrorist activities and for tracking biological and chemical gases, and explosives, including weapons of mass destruction and physiological conditions of personnel. H-LIST comprises plurality sensors on an outfit worn by an officer, a security officer, a bus driver, hostesses, Doctors, civil establishment hospital patients and the like, for sensing deadly gases, explosives, and physiological conditions in a defined area A receptor is operatively configured and worn proximate to the outfit responsive for empowering the sensors and for receiving / analyzing detection signal communications wirelessly indicative of the presence of a sensed agent, whereby detected signals are transported wirelessly to a central security monitoring station, enabling communication with first responders and backup security personnel or agents to the vicinity of the detection. The sensors are multifunctional and coded to recognize wavelike pattern of gases and explosives traveling through the wave, enabling the outfit and the receptor to be operable and process the portion of the detection signal to determine the detection type and / or whether there is a concealed object by conducting a test in which a first characteristic of a first dielectric constant associated with a person is determined, and a second characteristic of a second dielectric constant associated with the concealed object and or weapons of mass destruction is determined to expedite data transmission and communication to first responders.
Owner:TABE JOSEPH AKWO

Parking guidance system

The invention provides a parking guidance system comprising a mobile communication terminal for a car driver to use and comprising a WIFI module and an Internet access module; a plurality of wireless routers fixed at different positions in a parking lot, connected in a wireless communication manner with the WIFI module, and used for indoor positioning and vehicle navigation; a plurality of parking space sensors installed corresponding to each parking space of the parking lot and used for detecting whether each parking space is occupied; and a cloud server connected in a communication manner with the mobile communication terminal and the parking space sensors, and used for storing cartographic and packing information of the parking lot and transmitting parking guidance and navigation information of the parking lot to the mobile communication terminal. According to the invention, dedicated hardware terminal equipment is installed on a vehicle entering the parking lot, and after the vehicle enters the parking lot, specific guidance and road navigation of the indoor parking lot are given to the driver to assist the driver in finding an unoccupied parking space in the parking lot in the fastest way.
Owner:深圳华宏联创科技有限公司

Face portion detecting apparatus

In a face portion detecting apparatus, an image of an eye portion of a car driver can be properly extracted without adverse influences caused by a reflection image reflected from a luster reflection surface of spectacles worn by the car driver. The face portion detecting apparatus is arranged by a light source of an illumination for illuminating a face portion of a human being from different directions from each other; a camera for photographing the face portion which is illuminated by the light source; an illumination lighting control unit for controlling turn-ON operation of the light source; a camera control unit for controlling the camera in synchronism with the turn-ON operation of the illumination light source; and a retina reflection detecting unit for removing a reflection image of an article having a luster reflection surface by employing at least one image which is acquired by the camera in synchronism with the turn-ON operation of the illumination light source, whereby only a determined face portion is extracted.
Owner:MITSUBISHI ELECTRIC CORP

Gasoline pump system and method

In a gasoline pump system, means for concurrent filling of more than one car, tank or container with gasoline or other liquid petroleum products, comprising a display for guiding car drivers to a gasoline pump system having an outlet available for fueling, and a display for enabling each driver to identify the outlet used for filling his / her car, and to distinguish it from outlets used for filling other cars. A method for concurrent filling of more than one car, tank or container with gasoline or other liquid petroleum products, comprising the steps of: A. Guiding car drivers to a gasoline pump system having an outlet available for fueling; and B. Enabling each driver to identify the outlet used for filling his / her car, and to distinguish it from outlets used for filling other cars.
Owner:LITT ARYEH

Method for application database file self-adaptation electronic control unit (ECU) message collection

The invention relates to the field of automotive electronic technology composed of a plurality of electronic control units (ECUs), in particular to a method for application database file self-adaptation electronic control unit (ECU) message collection. A database computer (DBC) file supplied by a controller area network (CAN) bus is used for collecting a message system of ECU message dynamically, a remote service center converts the DBC file into a message collection control table which can be easily recognized by a car-mounted terminal, consequently the car-mounted terminal can quickly and selectively collect signal values in the ECU message needed by actual application, and therefore the phenomenon that redundancy message data are uploaded to a center system can be reduced. The method for application database file self-adaptation ECU message collection is outstanding in collecting car driver driving habit signal data application, communication flows can be reduced greatly under the condition that signal data are not compressed, a customizable and dynamically-expanding signal collection scheme can be supplied to an operational platform, and the problem of the complex DBC file of the car-mounted terminal can be solved.
Owner:XIAMEN YAXON NETWORKS CO LTD

Car driver driving skill practice guiding and examination scoring device and realization method

ActiveCN102768811ATimely voice promptRealize voice monitoring recordTeaching apparatusDigital videoSkill sets
A car driver driving skill practice guiding an examination scoring device comprises a core plate and an interface baseplate connected with the core plate, wherein the core plate comprises a DSP digital processing unit, an embedded MCU micro-controller, a program storage, a data storage and interface connector plugins; the DSP digital processing unit and the embedded MCU micro-controller are taken as the center namely a hardware platform of the device; the DSP digital processing unit is responsible for processing digital audios and digital video so as to obtain state data required by movement locus of an examination vehicle and other information; the embedded MCU micro-controller provides an operation platform for an operating system; and in addition to the interface connector plugins, interfaces containing corresponding interface circuit devices are also arranged on the interface baseplate. A realization method for car driver driving skill practice guiding an examination scoring, by means of the device, can improve the reliability of measurement data of the actual position of the examination car. Therefore, the integration level of functions of the vehicle-mounted equipment is improved, and the purchase and the maintenance cost for the customer are lowered.
Owner:LIUZHOU GUITONG TECH

Face portion detecting apparatus

In a face portion detecting apparatus, an image of an eye portion of a car driver can be properly extracted without adverse influences caused by a reflection image reflected from a luster reflection surface of spectacles worn by the car driver. The face portion detecting apparatus is arranged by a light source of an illumination for illuminating a face portion of a human being from different directions from each other; a camera for photographing the face portion which is illuminated by the light source; an illumination lighting control unit for controlling turn-ON operation of the light source; a camera control unit for controlling the camera in synchronism with the turn-ON operation of the illumination light source; and a retina reflection detecting unit for removing a reflection image of an article having a luster reflection surface by employing at least one image which is acquired by the camera in synchronism with the turn-ON operation of the illumination light source, whereby only a determined face portion is extracted.
Owner:MITSUBISHI ELECTRIC CORP

System for real-time monitoring of fatigue of driver of automobile

A real-time monitor system for the fatigue degree of car driver is composed of a car carried computer, a throttle pedal depth sensor, and a respiratory sensor for the car driver to measure its respiratory frequency and depth.
Owner:武汉交通科技研究院有限责任公司

RGBD-based car driver state detection and identification system

The invention relates to the field of optical and computer technologies, and discloses an RGBD-based car driver state detection and identification system. The system integrates units such as an RGB color image sensor module, a time-of-flight (TOF) depth and grey image sensor module, a near-infrared transmitter, a microprocessor and the like; depth information obtained through a TOF sensor and RGBcolor image information are subjected to synthesis algorithm processing; driver identity and posture are identified and detected; a driving state of a driver in a cab is detected; and the car controlgestures of the driver are controlled. RGBD information in the cab is obtained by adopting a color image sensor and a depth image sensor, so that multiple information of a color three-dimensional image (R, G, B, X, Y, Z, C) is calculated out; and auxiliary functions of information collection, safety driving, man-machine interaction and the like are provided for the driver in the cab.
Owner:深圳齐视图像科技有限公司

Intelligent adjusting system and method for car driver seat based on limb length predicting

The invention discloses an intelligent adjusting system and method for a car driving seat based on limb length predicting. The intelligent adjusting method comprises the following steps that image information is obtained through a camera; a driver in an image is subjected to face comparison, if the driver in the image is an in-database driver, seat position and backrest angle information which corresponding to the driver in a database are called to automatically adjust the seat, if no matched driver exists, the subsequent steps are conducted; human body example cutting and articulation joint positioning are conducted on the image through a convolutional neural network, and a human body skeleton model is formed; according to the image information, articulation joint information and camera height information, the pixel scale in the image is determined, and accordingly the height and the limb length of the driver are predicted; and according to a height predicting value and a limb lengthpredicting value of the driver, a limb length-seat position and backrest angle information corresponding table in the database is matched, thus the seat position and backrest angle information is obtained, and a motor is controlled by the controller to automatically adjust the seat. The intelligent adjusting system can automatically and accurately adjust the car driving seat without manual operation.
Owner:SOUTH CHINA UNIV OF TECH

In-car driver tracking device

InactiveUS9142142B2Accurate and reliable inputCosmonautic condition simulationsFinanceDriver/operatorData source
Disclosed are a device and method for providing driver tracking and behavior analysis, initiated without concurrent user input, by the presence detection of one or more drivers of the vehicle. Vehicle motion inferred from a location aware device sensor, as well as other driver smartphone sensors and application use are logged and analyzed to determine risk factors associated with identified drivers. Internet data sources are further utilized for associating road conditions and traffic regulations with the logged locations of the vehicle. Logged and analyzed data from the identified drivers is aggregated for reporting on vehicle risk.
Owner:KAARYA

Car driver and passenger life-saving escape system and operation method

The invention provides a car driver and passenger life-saving escape system and an operation method thereof, which can quickly eject a driver and passengers out of a car with a narrower space under the extremely-dangerous situations that the car is strongly collided, overturns at a high speed, burns and explodes, falls off, or is caught in water, so as to reduce the probability of severe disability and death. The car driver and passenger life-saving escape system comprises a system control device, a car emergency alarm, an automatic braking flameout controller, an ejection seat, an emergency separation type ceiling, an elastic protection mesh film and the like. When the severe accidents are happened to the car, the driver manually triggers the car or the car automatically triggers when a system control module detects that the relevant value exceeds the critical value to send out alarm and braking flameout information and generate instantaneous high-pressure gas, so as to prop the emergency separation type ceiling open and drive seats, the driver and the passengers to be ejected towards the upper rear side of the car; and meanwhile, the elastic protection mesh film arranged in the ceiling is instantaneously pulled out to carry out elastic pullback on the driver and the passengers, so that the speed of the driver and the passengers to the ground is reduced, and the casualties are further reduced.
Owner:王学荣 +2

Vehicle-mounted roadblock recognition system and method based on laser imaging technique

The invention discloses a vehicle-mounted roadblock recognition system and method based on a laser imaging technique. The vehicle-mounted roadblock recognition method is characterized in that a laser photographing device is arranged on an automobile to collect roadway images, a multi-media digital signal processing (DSP) processing chip is arranged at the back end for analytical processing, object features are extracted through pattern recognition, voice prompt is performed according to the recognition result, and the recognition result can also be displayed on a display screen. The vehicle-mounted roadblock recognition system and method have the advantages that images far away for more than 1km can be collected by aid of infrared laser photographing and can be collected at night or in severe weather, road ahead conditions which cannot be seen by human eyes of automobile drivers can be seen through infrared laser photographing, the images can be analyzed by aid of a method combining the pattern recognition and a support vector machine, the result is transmitted to the drivers, so that the drivers can make judgment in advance, accidents are avoided, casualty accidents are reduced to the minimum, and life safety and property safety of the country and people are guaranteed.
Owner:HOHAI UNIV CHANGZHOU

Wireless tire pressure alarming system as directly powered from car cigarette-lighter receptacle

A wireless tire pressure alarming system includes a tire pressure sensor & transmitter attached to each car wheel for sensing the tire pressure in each car wheel and for remotely sending the tire pressure signal from each car wheel; and a receiver having a plug plugged in a car cigarette-lighter receptacle to be powered by the car battery through such a cigarette-lighter receptacle and for receiving the tire pressure signal from the car wheel; whereby upon detection of a tire pressure reduced below the pre-determined safety pressure value of each car wheel, an alarm will be actuated either by an optical alarm signal or a sound alarm signal for warning the car driver for inflating his or her car wheel for enhancing driving safety.
Owner:WHEEL GRP THE

Spectacle lens for car drivers

A spectacle lens having a front surface intended to be fitted away from the eye. The spectacle lens includes a substrate made from mineral glass or an organic material. The spectacle lens has selective light wavelength filter properties. The selective light wavelength filter properties include a spectral transmittance between 80% and 95% for all wavelengths in a wavelength range between 428 nm and 452 nm for a light ray entering the spectacle lens on the front surface at an angle of incidence of 0°, a spectral transmittance between 95% and 100% for all wavelengths in a wavelength range between 500 nm and 700 nm for a light ray entering the spectacle lens on the front surface with an angle of incidence of 0° and a yellowness index of no more than 10 for a standard illuminant D65 and a standard observer function of 2° (D65 / 2°).
Owner:CARL ZEISS VISION INT GMBH

Personal rescue system

A personal rescue system in which the car driver can double-click the emergency button of a personal remote control secretly to send an emergency signal to an on-board movable alert device when extorted by evil fellows, causing the controller of the movable alert device to turn the audio / video output device of the movable alert device into a background mode and then to drive the wireless communication device of the movable alert device to send a rescuing message to a remote side wirelessly under the background mode without infuriating the evil fellows.
Owner:XINGYI SCI & TECH

Touch electronic selector and electronic gear shifting method

The invention discloses a touch electronic selector and an electronic gear shifting method. The selector comprises a touch liquid crystal screen, a signal acquisition module, a gear shifting control module and a gear shifting actuator which are sequentially connected, wherein the touch liquid crystal screen can be installed on a steering wheel and also can be installed on an instrument panel or installed on a control console, a plurality of touch liquid crystal screens can be simultaneously installed, and one touch liquid crystal screen can be selected by a car driver to operate. The touch electronic selector also comprises an independent power supply module for powering the touch liquid crystal screen and is provided with a safety protection module which can effectively prevent the fault operation. The touch electronic selector is high in scientific and technological level, simple in structure and high in stability.
Owner:SAIC GENERAL MOTORS +1

Intelligent service system based on car networking

ActiveCN106297785AAvoid complexityGuarantee the quality of speech recognitionSpeech recognitionTransmissionNetwork communicationData query
The present invention provides an intelligent service system based on car networking. The intelligent service system based on the car networking comprises a car machine terminal, a T-BOX terminal and a TSP cloud platform database. The car machine terminal is composed of a voice identification module, a semantic analysis module, a data retrieval module, a voice play module and a voice data processing module. The T-BOX terminal is composed of a car networking communication module, a car data analysis module and a car thematic data query module. The intelligent service system based on car networking realizes the man-machine interaction interface layer, a car driver can identify the human being natural language through a voice identification terminal at a car machine terminal and send identified data into the semantic analysis module in the voice identification terminal for semantic analysis, and the chat content requiring being replied is retrieved according to the result of the semantic analysis, and is informed to the car driver in the audio frequency mode through the car machine terminal.
Owner:GASU POLYTECHNIC COLLEGE OF ANIMAL HUSBANDRYANDENG

Container lockhole coarse positioning and tracking method

ActiveCN105956619AResolve interferenceSolve the problems such as poor Hough straight line effectCharacter and pattern recognitionUsing optical meansComputer graphics (images)Computer vision
The invention discloses a container lockhole coarse positioning and tracking method, and the method comprises the steps: an industrial camera which is arranged on a lifting device is used for collecting a series of container images for training, positive and negative samples in a part of container images are manually extracted, the positive and negative sample images are normalized, the industrial camera which is arranged on the lifting device is used for collecting the images of a to-be-detected container in real time, the area of approximate lockhole image region is calculated, the images are arranged according to sizes, the image region is calculated, according to the lockhole image region, a detection region is updated, the above steps are repeated to realize the tracking detection of the container lockhole position. The advantages of the method comprises: the method limited by the invention is adopted to be used for coarse positioning and tracking of the container lockhole, the lockhole position can be quickly recognized and tracked, so that a car driver can adjust the position of the lifting device at any time, the complete lockhole image can be accurately reserved, and the defects of interference lights and interference points in the environment, poor Hough line effect and the like are solved.
Owner:ZHEJIANG UNIV OF TECH

Method for prompting running route to nearest gasoline station

The invention relates to a method for prompting a running route to the nearest gasoline station. The method comprises the following steps: respectively connecting a controller module with an average gasoline consumption calculation module, a residual gasoline quantity detection module, a vehicle navigation module, a wireless data communication module and a voicing playing module; using the controller module to determine the remainder range of a car according to the average gasoline consumption calculation module and the residual gasoline quantity detection module; selecting the running route to the nearest gasoline station from the running routes to all gasoline stations provided by the vehicle navigation module or the wireless data communication module according to the remainder range; and playing the running route to the nearest gasoline station in the voicing playing module. Through the method, the automatic prompt of the nearest gasoline station can be realized during car running according to the residual gasoline quantity of the car, the condition that a car driver often pays close attention to the gasoline quantity information to influence driving is avoided, and the problem that the car driver cannot find the appropriate gasoline station on a strange road is solved.
Owner:杨国琴

Vehicle terminal eyeball identification control method and vehicle terminal eyeball identification control system

The invention provides a vehicle terminal eyeball identification control method and a vehicle terminal eyeball identification control system. The method comprises the following steps: projecting infrared rays to an eyeball when eye identification operation is activated; tracking the movement of the eyeball after infrared projection and collecting an eyeball iris image; processing the collected eyeball iris image to obtain eyeball movement information; sending a corresponding control instruction to a control system of a vehicle terminal to control the vehicle terminal according to a control instruction preset for the eyeball movement information; identifying the movement of the eyeball with the center point of a tracking and collecting module for tracking the movement of the eyeball and collecting the eyeball iris image as the point of origin; and installing an activation button on the steering wheel to activate eye identification operation. A car driver can control a HUD, an in-car entertainment system, and even the car radio, music, air conditioning temperature and other applications only through subtle movement of the eyes, there is no need for the hands of the driver to leave the steering wheel, and therefore, the security risk is reduced.
Owner:SHANGHAI QINGGAN INTELLIGENT TECH CO LTD

Private car ridesharing dispatching system and control method thereof

InactiveCN104217584AImprove ride-sharing travel experienceIncrease profitRoad vehicles traffic controlDriver/operatorTraffic congestion
The invention discloses a private car ridesharing dispatching system. The private car ridesharing dispatching system comprises a driver client side module, a passenger client side module, a dispatching center module and a communication module. The invention further provides a control method of the private car ridesharing dispatching system. The control method mainly includes that a private car driver and a passenger send own outgoing information and outgoing demands through client side modules or information sending modules, the dispatching center module integrates obtained outgoing data to match private car outgoing information with passenger outgoing demands, and intelligent operation of private car ridesharing can be finished. According to the private car ridesharing dispatching system and the control method thereof, by means of rapid integrated matching of private car carrying capacity and passenger outgoing demand information, the actual utilization rate of a private car is increased, passenger individualized outgoing demands can be met, the increasing of operating efficiency of an urban traffic system can be facilitated, and the private car ridesharing dispatching system and the control method thereof are quite significant in terms of alleviation of urban traffic congestion.
Owner:SOUTHEAST UNIV

Car driver voice assistant

The invention provides a car driver voice assistant. The structure of the car driver voice assistant comprises an intelligent controller, and a pickup unit and an execution unit both connected with the intelligent controller; a voiceprint identification module, a voice command storage module and an instruction generation module are arranged in the intelligent controller; the instruction generation module is used for comparing a voice signal acquired by the pickup unit with voice commands pre-stored in the voice command storage module, and if finding out a voice command matched with the voice signal, controlling the execution unit to execute the operation corresponding to the voice command; the voiceprint identification module is used for performing voiceprint identification on the voice signal output by the pickup unit and controlling the enable end of the instruction generation module, and allowing the instruction generation module to output a signal only after determining that the voice signal is transmitted by the driver. The car driver voice assistant has the advantages that the identity of a speaker is identified by use of the voiceprint identification technology, a person other than the driver can be prevented from controlling the car by use of the voice command, the operation of the driver is simplified while the safety of driving is guaranteed, and the comfort of driving is improved.
Owner:GREAT WALL MOTOR CO LTD

Car driver safety airbag folding machine

The invention relates to a car driver safety airbag folding machine and relates to a car loading tool. The car driver safety bag folding machine comprises a framework platform, a lifting workbench, a pair of airbag rolling and folding mechanisms, an airbag inserting and folding mechanism, an airbag compaction mechanism and an airbag turnover mechanism; the framework platform comprises a lower framework, a large platform and an upper framework, the large platform is fixed at the top of the lower framework, the upper framework is fixed above the large platform, and the lifting workbench is positioned in the middle of the large platform and is fixed on the lower framework; the pair of airbag rolling and folding mechanisms is positioned on the two sides of the lifting platform and is close to the front end; the airbag inserting and folding mechanism is positioned behind the lifting platform and is fixed on the large platform; the airbag compaction mechanism is positioned above the lifting platform and is mounted on the upper framework; the airbag turnover mechanism is positioned above the left side of the lifting platform and is mounted on the left side of the upper framework. The safety airbag folding machine provided by the invention is simple to operate, high in degree of automation and high in production efficiency; gaps among folded airbags are uniform, and the product quality is good.
Owner:LIAONING UNIVERSITY OF TECHNOLOGY

Vehicle driver wheelchair lift

InactiveUS20110002764A1Reduce decreaseSecure and compact and reliableRefuse receptaclesNursing bedsWheelchairDriver/operator
Disclosed is a vehicle driver wheelchair lift, the lift having a bearing mount fixed to the vehicle that rotationally captures a pivot rod to which a pair of forks are attached by a parallelogram linkage. The rod rotates in the bearing to move the forks horizontally in and out of the vehicle, while the parallelogram linkage expands and contracts to raise and lower the forks. The purpose of the parallel linkage is to allow the forks to move vertically while maintaining a horizontal position. The forks are adapted to engage a pair of horizontal fork receivers fixed to a wheelchair. A vertical linear actuator expands and contracts the linkage to raise and lower the forks vertically. A motor turns the pivot rod to rotate the forks horizontally. In one exemplary embodiment, a lock on the forks secures the receivers and chair on the forks and a sensor signals when the receivers are in locked position suitable for raising and lowering. In one exemplary embodiment, the parallel linkage has outwardly offset lower joints to establish a preset raised position at maximum extension.
Owner:DARNELL SCOTT ALAN +1
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