865 results about "Collision system" patented technology

A host vehicle system includes a blind-spot warning system providing an indication to the host vehicle a target vehicle entering a blind-spot. The system includes a vehicle bus receiving various vehicle control signals, magneto-resistive sensors receiving proximity information as a function of magnetic field variations, a smart algorithm controller analyzing bus signals and sensor signals, and various vehicle collision systems such as passive restraints, optical light guides, and audible warnings operating in response to a threat from a target vehicle.

A vehicle anti-collision system and method for is disclosed which provides drivers with additional time in which to react to significant roadway events which often precede accidents. The simplest implementation of the system and method (Phase I) employs a brake pedal mounted sensor packet for determining how hard a driver is braking. Hard braking information is relayed to approaching drivers by means of the reverse lights of the vehicle. Additional implementation phases (II through IV) are described wherein event information is communicated between vehicles over a communications link. Furthermore, additional vehicle information, such as an impact, swerving, emergency light activation, and roadway hazards may be communicated to approaching drivers by the communications link whereby drivers need not see the vehicle that has slammed on its brakes, or otherwise has created or responded to an event, in order to avoid an accident.

A real time stamp synchronization system (14) for an automotive vehicle (12) is provided. The system (14) includes a vehicle clock (52) that stores a current time. A time receiver (50) receives a real time signal from a time center (16). A collision system controller (54) is electrically coupled to the vehicle clock (52) and the time receiver (50) and synchronizes the current time with the real time signal. A collision evaluation system (10) for reconstructing a collision event is also provided along with methods for performing the same stated systems.

A system and method for avoiding aircraft collisions wherein a ground based monitoring station serves as one port of a wireless LAN operating according to a wireless communications protocol compatible with the IEEE 802.16e standard and derivatives thereof. A mobile unit associated produces respective position-dependent signals of an authorized object that are conveyed to the ground based monitoring station and to respective mobile units associated with other mobile units via the wireless LAN. A collision prediction unit is responsive to the position-dependent signals and to static position data of the airport infrastructure for predicting collisions between mobile objects or between a mobile object and the infrastructure. A warning unit coupled to the collision prediction unit and responsive to a predicted collision involving one or more mobile objects conveys a respective warning to the one or more mobile objects for allowing evasive action.

The invention discloses a system and a method for preventing pedestrians from collision based on vehicle-road cooperation. The system comprises a vehicle-mounted module, a road-side module, a vehicle-road communication module, a central processing module and a display and control module. Information interaction between the road-side module and the vehicle-mounted module is realized by use of the vehicle-road communication module, and the data of the road-side module and the vehicle-mounted module both are sent to the central processing module; the central processing module is used for fusing and processing multi-source information and sending an instruction to the display and control module to execute a collision preventing measure. The system and the method for preventing pedestrians from collision based on vehicle-road cooperation have the advantages that more accurate pedestrian information within a wider range can be obtained in a vehicle-road cooperation manner and then the pedestrian-vehicle collision risk is determined, and furthermore, the corresponding collision preventing measures can be adopted, and therefore, the purpose of safe and intelligent driving aid can be achieved.

The invention discloses a honeycomb lattice enhanced type composite material double-cylinder structure and an anti-collision system using the same. The double-cylinder structure comprises an outer cylinder (1) and an inner cylinder (2), wherein a honeycomb lattice enhanced body (3) is arranged between the outer cylinder (1) and the inner cylinder (2); and a filling material body (4) is filled into the inner cylinder (2). The anti-collision system comprises the honeycomb lattice enhanced type composite material double-cylinder structure, wherein the double-cylinder structure comprises straight cylinder units (5) and bent cylinder units (6); adjacent and mutually connected straight cylinder units (5), the straight cylinder units (5) and the bent cylinder units (6), or the bent cylinder units (6) are connected together through mortise and tenon joints (7) and bolts bars (16) so as to form a strip-shaped or annual anti-collision system; and a moving device (8) is arranged on the inner side of the anti-collision system. The double-cylinder structure is integrally formed in a weaving mode, and the filling material body has higher rigidity, so that the deformation degree can be limited without crack, and the double-cylinder structure is long in service life, low in cost and easy to maintain.

The invention relates to an intelligent anti-collision system of a novel AGV for material handling. The system comprises a vehicle-mounted master control unit, an environment detecting unit, an action executing unit, an alarming unit and a remote control unit. The anti-collision system can achieve bidirectional multilayer protection on an AGV body. Forward protection of the AGV is achieved through a laser radar, an arc-shaped anti-collision buffer belt and a camera. Backward protection of the AGV is achieved through a laser distance measuring sensor and a U-shaped anti-collision buffer belt. A protection area of the anti-collision system is divided into a monitoring layer, a speed reduction layer and a parking layer from far to near. The detection data of the environment detecting unit are processed by the master control unit, and the AGV is controlled to execute corresponding actions, namely, normal running or speed reducing posture adjustment or parking. When a parking event occurs, the alarming unit gives an alarm, and the remote control unit is informed to carry out remote processing. The intelligent anti-collision system can effectively reduce the collision probability of the AGV, and the vehicle body is protected.

The invention discloses an automobile omnibearing anti-collision system. The automobile omnibearing anti-collision system mainly comprises a range radar receiving and transmitting module, a data collecting and modulating module, an information processing module, an auxiliary braking module and a sensor sensing module. According to the automobile omnibearing anti-collision system, different automobile safe distance modules are built according to attachment coefficients under different road conditions, the safe distance module corresponding to the road condition is selected, the distance, the speed difference and the like between the automobile and a vehicle in front of the automobile are measured through a millimeter-wave radar during front collision preventing, generally, an alarm display system conducts early warning to remind a driver, and emergency auxiliary braking can be conducted under the state of emergency; during lateral safety protection, pedestrians, vehicles and other barriers in driver visual dead zones on the two sides of the automobile are monitored mainly through an ultrasonic range radar; and a camera installed at the tail of the automobile can collect video signals, and transmits the signals to a mainframe through an information collecting unit, and the signals are processed through the mainframe and transmitted to the alarm display system for early warning.

The invention relates to a vehicle collision warning and active control method based on vehicle communication. The method is realized through an early warning control device which is arranged on a vehicle. A front vehicle collision warning and active control method, a rear vehicle tailgate warning and active control method and an adjacent vehicle lane changing warning and active control method are comprised. According to the invention, a vehicle communication collaborative way is used to exchange the environmental perception and state data of two vehicles; safety distance and brake device can be adjusted by integrating the conditions of the vehicle and an adjacent vehicle; warning delay of the vehicle and the adjacent vehicle is reduced; and the vehicle and the adjacent vehicle can collaborate to make a proper active vehicle control decision and operation. The problems that the information of the adjacent vehicle is unavailable; safety distance and brake device cannot be adjusted; and vehicle collaborative collision warning and collaborative active safety operation cannot be carried out for the state of the adjacent vehicle in the prior art relying on a collision avoidance system of the vehicle are solved. The reliability and the accuracy of vehicle collision and active control are effectively improved.

The invention discloses a road intersection anti-collision early warning method, road-side equipment and an anti-collision system based on vehicle infrastructure integration technology. According to the road intersection anti-collision early warning method, GPS information which is transmitted by each vehicle through specific on-vehicle equipment is received by the road-side equipment arranged at a road intersection, and furthermore collision predication analysis is performed on the data of the GPS information, thereby generating early-warning information. Furthermore the early-warning information is forwarded to the vehicles with potential collision risks. Finally after the on-vehicle equipment receives the early-warning information, the on-vehicle responds to the early-warning information, thereby reducing collision probability between vehicles in the ramp and the main road of the intersection, and furthermore greatly improving vehicle driving safety on condition of high-speed driving or blind area at the intersection.

The invention discloses a vehicle rear-end collision preventing system and method based on road surface conditions. The system comprises a driving information obtaining device, a safe state judgment device, a touch alarm device, an autonomous brake output device and a data information storage unit. The driving information obtaining device comprises a distance measuring sensor, a wheel speed sensor and an in-tire sensor and is used for sensing vehicle motion information and the road surface attachment state; the safe state judgment device is used for selecting target deceleration through driver characteristics based on the different road surface conditions, inputting the target deceleration into a safe distance module, and comparing the vehicle relative distance with the current relative distance to determine the real-time operating safe state of a vehicle; the touch alarm device comprises a touch sensor installed on the surface of a driver seat and a touch sensor installed on an accelerator pedal. Road information and vehicle information can be obtained through the multiple sensors, an alarm is given or autonomous brake measures are taken in time according to the safe state of the current vehicle, vehicle rear-end collision can be effectively avoided, and road potential safety hazards are reduced.

A collision avoidance system for a mobile unit includes an image capturing unit for capturing an image of an environment surrounding a mobile unit. Motion vector is calculated based on the captured image. Collision probability is calculated based on the motion vectors of the image. The system includes a plurality of receptive field units that are modeled on the optic lobe cells of the flies. Each of the receptive field units includes a filter producing an excitatory response to the motion vector diverging from the center of the receptive field in the central area of the receptive field and producing an inhibitory response to the motion vector converging toward the center of the receptive field in the areas around the central area. The outputs of the receptive field units are compared to determine a direction in which the obstacle approaches the mobile unit. The mobile unit moves in a direction to avoid collision.

The invention discloses an automobile chaotic laser radar anti-collision system and the method thereof. The automobile chaotic laser radar anti-collision system is characterized in that the chaotic laser light produced by a chaotic laser is taken as a radar signal, and is divided into two beams by a beam splitter; one beam is taken as a reference signal, and the other beam is taken as an emission signal for scanning detection to an objective obstacle through a scanning device; a receiver is utilized for respectively receiving the reference signal and an echo signal reflected by an object; the delay time of the echo signal is obtained by carrying out the correlation operation to the echo signal and the reference signal, thereby further calculating out and obtaining the distance of the objective obstacle; and at the same time, the relative velocity of an automobile and the objective obstacle is calculated out and obtained according to distance differences of definitive time intervals. The invention uses the chaotic laser light produced by an optical-feedback semiconductor laser as a laser radar signal, has the advantages of high distance accuracy, strong anti-interference capacity, simple structure and the like, and is applicable to various automobiles.

The invention relates to an intelligent anti-collision guardrail structure. The intelligent anti-collision guardrail structure consists of a power system, an anti-collision system, a car preventing system, a violation and evidence obtaining system, an intelligent system, an alarming and reminding display system and a control system. The power system consists of a solar cell panel, a storage battery, a motor, a speed changing box, a hydraulic motor and a hydraulic pump. The anti-collision system consists of a lifting subsystem, a flexible protection subsystem, a semi-rigidity protection subsystem, a rigidity protection subsystem, an air cushion protection subsystem and a magnetic protection subsystem. The violation and evidence obtaining system consists of a camera, a video camera, a radar tachymeter, a wifi device, a GPS device and a data rod. The intelligent anti-collision guardrail structure has the advantages of being high in intellectualization, capable of adjusting a collision angle, high in construction speed, convenient to maintain and long in service life.

The invention discloses an automobile active anti-collision system, which can reduce the harm to an automobile driver in the sudden unavoidable collision accident. The automobile active anti-collision system includes a control module, a preprocessing module, an execution module, an energy absorbing module and a data acquisition module; the data acquisition module is used for collecting the lane information of a road, the vehicle information, front and rear obstacle information and the relative information of the vehicle and the front and rear obstacles on the lane of the road; the preprocessing module establishes a distribution model of the vehicle and vehicles on the lane of the road under the current status based on the information obtained by the data acquisition module; the control module judges whether collision risk exists or not based on the data processed by the preprocessing module, grades the collision and sends corresponding instructions to the execution module and the energy absorbing module according to different grades so as to reduce avoid collision; the execution module sends out a warning to the driver, and manipulates a brake system and a steering system to execute corresponding operations; and the energy absorbing module is an active ejection and withdrawal device.

In accordance with the present invention, a radio frequency identification (RFID) tag for use with an RFID system which includes one or more RFID tag readers, includes a tag communication device adapted to communicate with each of the one or more tag readers, a one-way hash function stored on the RFID tag, and a memory having stored therein a metaID. The tags may be locked and unlocked. The system includes a reader and a database. The system communicates with the tags via a forward channel and a backward channel. The present invention can singulate one tag from several responding tags and acquire the ID for the singulated tag.

The invention discloses a tower crane, and an anti-collision system, an anti-collision method and an anti-collision device of the tower crane. The anti-collision system of the tower crane comprises an acquisition device, a monitoring device and an alarm device, wherein the acquisition device is used for acquiring the hoisting amplitude, the real-time hoisting height, the rotation angle of a cargo boom and the position information of the tower crane as well as the three-dimensional coordinate information of a barrier; the monitoring device is connected with the acquisition device by signals, and is used for generating an alarm control signal when interference danger is confirmed to happen between the barrier and the cargo boom based on the set space rectangular coordinate system according to the dimension parameters of metal parts of the tower crane and the information acquired by the acquisition device, and/ or is used for controlling the tower crane to stop working; the alarm device is connected with the monitoring device by signals, and is used for receiving the alarm control signal generated by the monitoring device and alarming according to the received alarm control signal.

The invention discloses a UWB based fork truck anti-collision system and method. The system comprises fork truck module which is arranged in a fork truck and a warehouse module which is placed in a warehouse. The fork truck module comprises a storage battery pack of the fork truck, a vehicle-mounted tablet computer, a UWB reader, a UWB antenna and a UWB label placed at the top of the truck, wherein the UWB antenna is connected with the UWB reader via a serial port, and the storage battery pack of the fork truck supplies power to the UWB reader. Power consumption of the UWB label is extremely low, so that a dry cell is used to supply power to the label, and one AAA cell can satisfy power requirements of the label for one year. The warehouse module comprises a power supply module, a reference label, a UWB antenna, a UWB reader, a synchronization distributor, a switch, a server and a display, wherein the UWB antenna is connected with the UWB reader via the serial port, then to the synchronization distributor via a cable, and finally to the server via the Ethernet switch; and the power supply module (namely, the storage battery pack of the fork truck) uses 48V DC to supply power to the UWB reader.

The invention relates to a single-camera automobile collision avoidance method based on risk balancing of a safe distance and collision time. According to the method, firstly, a single camera shoots an image frame at the interval of delta t, and the obtained image frames are subjected to image segmentation and target identification to obtain a boundary between wheels and a road; secondly, the distance D between automobiles, the relative speed v of the former automobile and the current automobile and the collision time T are calculated; thirdly, a collision time risk function f1 and a safe distance risk function f2 are calculated according to D, vf, T and v; lastly, risks are balanced according to the relative speed v, the risk function f1 is adopted when v is larger than a certain threshold value v0, and the risk function f2 is adopted otherwise. By the adoption of the method based on risk balancing through combination of the safe distance and the collision time, control is more accurate. The single camera is adopted to obtain parameters of the distance between the automobiles, the relative speed and the collision time, so that a sensor is omitted, cost is greatly lowered, and the method is very convenient to use and practical.