106 results about "Collision system" patented technology

The invention relates to the technical field of anti-collision systems, in particular to an offshore wind power construction safety pre-warning system based on AIS (automatic identification system) data, which comprises a ship dynamic uncertainty modeling module for acquiring AIS signal updating frequency and positioning precision marks of a target ship and generating a ship future position probability ellipse. According to the invention, the position coordinate, the speed value and the course angle of the ship are obtained in real time based on the AIS data, the reliability and the motion trend of ship position prediction are determined by combining the AIS signal updating frequency and the positioning precision mark, and the future position probability ellipse of the ship is accurately generated; a protection area is dynamically constructed, comprehensive calculation is carried out in combination with the spatial relation between a ship future position probability ellipse and the positions of surrounding fan pile foundations, and a hourly dynamic collision risk index sequence is obtained; and further according to the statistical deviation between the current motion state of the ship and the standard parameter of the function partition, combining with path difference analysis to obtain a navigation abnormity comprehensive index.

The invention relates to a modularized bridge pier anti-collision system which comprises an anti-collision device and an intelligent monitoring device, and the anti-collision device is an annular protection body formed by splicing a plurality of prefabricated anti-collision plates and fixed to the circumferential face of a bridge pier in a surrounding mode. The prefabricated anti-collision plate comprises a composite inner core formed by stacking a plurality of layers of honeycomb energy dissipation core plates, and the density of the honeycomb energy dissipation core plates is gradually increased from the outer side to the inner side. The intelligent monitoring device comprises a sensor array, a storage battery, a charging and discharging controller, a data processing module, a wireless communication module and a remote monitoring center. The sensor array is a force sensor embedded in the center of a polyurethane buffer gasket on the inner side of the prefabricated anti-collision plate. The detection method comprises the steps that when the pier is collided, the sensor array is triggered, data information is collected in real time, a data packet is sent to the remote monitoring center through the wireless communication module, and the collision position and the damage condition of the pier are automatically monitored. The structure is efficient in disassembly and assembly, convenient to maintain and high in anti-collision adaptability, full-life monitoring of the bridge pier is achieved, and the protection performance is improved.

The invention discloses a multi-source data fusion vehicle anti-collision system based on a 4D millimeter-wave radar, which is applied to the technical field of vehicle active safety, and comprises a 4D millimeter-wave radar detection module used for collecting 4D information of targets around a vehicle and distinguishing a pavement target from an air interference target; the vehicle state detection module is used for synchronously acquiring running parameters of the vehicle at the same acquisition rate as that of the radar detection module; the data fusion processing module is used for carrying out fusion and noise reduction processing on the 4D information and the running parameters of the vehicle on the basis of a fusion algorithm of Kalman filtering and a DS evidence theory; the collision risk estimation module is used for calculating the collision time and the collision probability based on the fusion data and constructing a two-parameter risk level judgment model based on the collision time and the collision probability; and the anti-collision execution module is used for executing a corresponding anti-collision intervention action according to the risk level. The accuracy, the stability and the adaptability of the vehicle anti-collision system are effectively improved.

The invention provides a 3D anti-collision detection method and system based on monocular vision, and the method comprises the steps: obtaining the image data of a front environment collected by a vehicle-mounted monocular camera in real time, and carrying out the preprocessing of the image data, and obtaining the standardized image data; generating an optimized absolute depth map by fusing a first depth estimation result and a second depth estimation result based on the standardized image data; detecting a 3D obstacle based on the optimized absolute depth map and scene semantic information to obtain related information of at least one target obstacle; and performing collision risk assessment according to the related information, and triggering early warning when the risk meets an early warning condition. The invention provides a high-precision and high-robustness monocular 3D anti-collision detection scheme, monocular depth estimation based on deep learning, semantic segmentation and a dynamic safety model are combined, and an end-to-end anti-collision system with physical significance is formed.

Disclosed are techniques for selective and scalable sensor fusion for autonomous emergency braking (AEB). In an aspect, an AEB system on a vehicle dynamically selects one or more vehicle sensors from a plurality of vehicle sensors and / or dynamically scales an output from each of the dynamically selected one or more vehicle sensors based on one or more factors, such as the condition of the vehicle, weather, road, or traffic, a location of the vehicle, a sensor capability, a required sensing accuracy, etc., or a change of any of the above. The AEB system monitors a forward path of travel of the vehicle for potential collisions, based on data comprising the output from the one or more vehicle sensors. If a potential collision is detected, the AEB system autonomously applies vehicle brakes to avoid the potential collision. The AEB system can use data and location fingerprinting to reduce false positives.

An anti-collision system for a storage area comprises at least one emitter device (2), at least one receiver device (3), a signaller device and a control unit. The emitter device (2) can be coupled to a forklift (C) movable within the storage area and is configured to emit an optical signal. The receiver device (3) is installable at a ceiling of the storage area and 5 is configured to monitor at least one transit zone (Z) of the storage area so as to acquire the optical signals (O) emitted therein. The control unit is configured to activate the signaller device as a function of the optical signals (O) acquired so as to generate an alert signal.

The invention relates to the technical field of intelligent protection, and discloses a metal plate stamping anti-collision system based on force feedback, which comprises a data acquisition module, a data processing module, a feature extraction module, a collision risk prediction module, a dynamic anti-collision control module and a real-time anti-collision intervention module, force signal data in the stamping process is obtained; performing noise cleaning on the force signal data to obtain a clean force signal in the stamping process; extracting a time domain feature and a frequency domain feature in the clean power signal to obtain a time domain feature vector and a frequency domain feature vector in the stamping process; performing collision risk prediction on the stamping process based on the time domain feature vector and the frequency domain feature vector to obtain a collision risk level of the stamping process; dynamically generating an anti-collision control instruction of the stamping equipment according to the collision risk grade; the stamping process is intervened in real time based on the anti-collision control instruction; according to the invention, the efficiency of production operation, quality control, mold maintenance and automation level can be improved.

A multi-sensor integrated intelligent tool holder real-time monitoring and anti-collision system, comprising: an intelligent tool holder device, an external PLC controller, a built-in relay, a numerical control machine tool and a PC signal processing and display module; the intelligent tool holder device comprises: a handle cone structure, a force sensor structure, a resistance strain gauge group, a protective shell, a plurality of supporting copper columns, a first hardware circuit board, a second hardware circuit board, a vibration sensor, a lithium battery, a fixed upper shell, a fixed bottom shell, a draw stud, a clasp spring, a compression cap and an end mill. The application is based on the collected cutting signals for real-time analysis and rapid judgment and response, is not affected by the machining environment and the shape and size of the workpiece, is accurate in measurement, greatly reduces the influence of the external sensor arrangement distance on the cutting data accuracy, and is suitable for the monitoring of cutting force and vibration and the anti-collision monitoring link in the part machining process, and improves the cutting automation, intelligence and safety level.

The application relates to a collision-preventing device for a cargo elevator, which is installed at an elevator entrance of a floor where a forklift truck enters and exits, and comprises a first TOF sensor, which is installed on a wall above a layer door of the floor where the forklift truck enters and exits, and is used for measuring the position and deviation angle of the forklift truck; a second TOF sensor, which is installed at the top end of a car, and is used for measuring the position of the forklift truck in the car and the horizontal position of the most protruding part at the front end of the forklift truck; an elevator inner wall collision-preventing fence, which is installed on the inner wall of the car and can be controlled to move up and down; a gate device, which is installed in front of the layer door of the floor where the forklift truck enters and exits, and is composed of a blocking rod and a lifting rod device; and an AI camera, which is installed on the wall of the floor where the forklift truck enters and exits, and is used for shooting the face of a forklift truck driver. The application not only improves the operation safety, but also effectively prevents collision accidents, simultaneously realizes intelligent management and optimized scheduling, and significantly improves the logistics transportation efficiency and safety.

The utility model discloses a road roller contact type anti-collision system which comprises two mounting bases, a mounting bracket is fixedly mounted at the upper ends of the two mounting bases, a travel switch is fixedly mounted on the inner wall of each mounting bracket, and the travel switches are fixedly mounted on the mounting brackets. A tensioning device is fixedly installed on the back face of each of the two installation supports, a safety protection plate is fixedly installed on the outer surfaces of the two tensioning devices through a connecting rod, and a travel switch is connected with an emergency stop switch through a signal line. And the safety is poor. According to the technical scheme, the contact type anti-collision system of the road roller is provided. The anti-collision device, namely the safety protection plate, is arranged in front of the road roller, so that emergency braking and automatic flameout operation of the road roller are finally achieved, collision accidents are effectively avoided, and the active safety of the road roller in a complex construction environment is greatly improved.

The present application relates to a kind of cable crane and tower crane anti-collision system, comprising: big dipper positioning receiver, rotary encoder, controller and alarm device. Big dipper positioning receiver is installed on cable crane trolley. Rotary encoder is installed on tower crane. Big dipper positioning receiver is used to position cable crane trolley, and encoder is used to collect the rotation angle of tower crane;Big dipper positioning system and rotary encoder are respectively with the data interaction of controller. Alarm device is connected with controller. The cable crane and tower crane anti-collision system, after the data obtained from big dipper positioning receiver and rotary encoder are processed by controller, the position of tower crane can be monitored in real time, and alarm is given when tower crane approaches cable crane, to prevent serious safety accidents.

An anti-collision system suitable for a mobility scooter or similar comprises a sensor array, a controller and a power isolation unit. The sensor array may comprise Lidar, Radar, ultra-sonic or infra-

The utility model relates to the technical field of mining production, in particular to an anti-collision system for an electric locomotive of a rail transportation system of a mine underground haulage roadway, and aims to solve the problems that the electric locomotive is influenced by operation errors of personnel and the transportation cost is high because the conventional mine underground complex roadway rail electric locomotive generally adopts a manual driving electric locomotive mode in the ore transportation process. And collision accidents easily occur, so that the transportation and production safety and efficiency of the electric locomotive are reduced. The system comprises a power supply and a man-vehicle distance detection alarm and electric locomotive deceleration parking execution unit, when the distance between distance measurement base stations and the distance between the distance measurement base stations and a bracelet are smaller than a preset distance, the distance measurement base stations send signals to an alarm device to trigger sound-light alarm and send signals to an electric locomotive to control the electric locomotive to decelerate and stop, and a person wears the bracelet to generate vibration alarm. According to the method, the electric locomotives of the rail transportation system in the complex transportation roadway are effectively prevented from colliding with one another, and the electric locomotives and the operating personnel are effectively prevented from colliding with one another.

The utility model provides a multifunctional recyclable measurement control point protection device, which belongs to the technical field of engineering measurement control points or monitoring references and comprises a foundation connecting layer, a standard connecting layer, a control measurement layer, a rainproof energy storage ceiling and an anti-collision early warning system which are detachably connected. A protective ladder stand is arranged on the side face of the standard connecting layer and the side face of the basic connecting layer, a measuring instrument is erected in the control measuring layer, the anti-collision early warning system comprises a radar anti-collision system and a security monitoring system, and the basic connecting layer, the standard connecting layer, the control measuring layer and the rainproof energy storage ceiling are mechanically connected through bolts. A protection locking device is arranged at the joint of each layer, and the problems that a traditional measurement control point is long in dismantling period, cannot be recycled, pollutes the environment after being dismantled, and is incomplete in security and protection, and the levelness is not easy to master during platform installation are solved.

A proximity detection and collision avoidance system determines whether a collision risk exists between two vehicles by measuring magnetic field vectors generated on each of the vehicles as the relative distance between the vehicles decreases.

The invention relates to the technical field of stackers and reclaimers, and discloses a stacker and reclaimer control device which comprises a stacker arm platform and a scraper conveyor, and further comprises a material pile height monitoring system which comprises at least two material level height detection radars and a material level scanner which are installed at the head of the stacker arm platform and is used for monitoring the height of a material pile in real time, in the automatic stacking process, the stacking arm platform is controlled to automatically move to the next position after the material level reaches the set height; the material pile height monitoring system, the positioning system, the comprehensive anti-collision system and the video monitoring system are integrated, so that the problems that the automation level of a material piling and taking machine is not high, and information cannot be effectively transmitted in the on-site operation process are solved; and through the comprehensive anti-collision system, the problems that related protection and alarm sensing detection devices on the stacker-reclaimer in a traditional control mode are few, and the operation condition of the devices cannot be grasped in time are solved, and timely early warning of abnormal conditions is achieved.

The invention provides an intelligent safety monitoring and anti-collision system for a tower crane and an elevator, and relates to the technical field of building construction safety monitoring. The system constructs a five-layer architecture of multi-source sensing, edge computing, converged communication, a cloud platform and application interaction, a tower crane end is integrated with a torque sensor, a rotary encoder, a wind speed sensor, a height encoder and a GNSS / RTK dual-mode positioning module, an elevator end is provided with a load sensor, a double-shaft inclination sensor and a network camera, and data intercommunication is achieved through a communication network. A distributed space-time cooperation mechanism is utilized, an LSTM neural network based on an attention mechanism is adopted to predict a device track, a dynamic collision cone model introducing wind speed disturbance compensation is constructed, and an improved ORCA algorithm introducing jerk constraint is operated to realize optimal avoidance of a group tower. According to the system, the BIM three-dimensional geometric model and real-time working condition data are fused to construct the digital twinborn body, acousto-optic broadcast linkage alarm is supported, and the system is suitable for intelligent safety management of large capital construction projects.

The utility model relates to a tower crane group operation anti-collision system, which belongs to the technical field of tower cranes and comprises an anti-collision detection device. The anti-collision detection device comprises a detection radar, a machine shell, a wireless transceiver, a rotating rod, a swing motor, a controller, a push-pull rod and a sliding frame. An overturning frame is welded to the outer side face of the rotating rod, and a detection radar is installed on the lower side face of the overturning frame through a bolt; a controller and a wireless transceiver are installed in the machine shell, a swing motor is installed on the upper side face of the machine shell through bolts, a push-pull rod is installed on a motor shaft of the swing motor, a guide rod is welded to the inner side face of the machine shell, a sliding block is connected to the outer side face of the guide rod in a sliding mode, the sliding block is connected with a rack plate in a welded mode, and a sliding frame is connected to the upper side face of the sliding block through bolts. Through the arrangement of the anti-collision detection device, real-time monitoring of the movement distance between the horizontal lifting arms is achieved, and the problem that the collision risk of the horizontal lifting arms is high due to the fact that a traditional tower crane group cannot monitor the movement distance between the horizontal lifting arms in real time is solved.

Methods and systems are provided for autonomous vehicle operation for collision avoidance. One method involves identifying an autonomous operating mode and one or more settings associated with the autonomous operating mode prior to entering an autonomous collision avoidance mode in response to an output from a collision avoidance system, and after entering the autonomous collision avoidance mode, automatically restoring autonomous operation upon deactivation of the autonomous collision avoidance mode. For example, the autonomous operating mode may be automatically reinitiated based on the current vehicle status using the one or more settings in response to deactivation of the autonomous collision avoidance mode when it is determined that the autonomous operating mode is viable based on a relationship between a current vehicle status and the one or more settings associated with the autonomous operating mode.

An aircraft ground anti-collision system and an aircraft ground anti-collision method are disclosed including an obstacle detecting unit including multiple sensors configured to detect position information of an obstacle around an aircraft; a weather monitoring unit, configured to receive weather information from an information source; and a control unit, configured to receive the position information from the obstacle detecting unit and the weather information from the weather monitoring unit, determine a sensor perception model suitable for the weather information based on the weather information, and set, based on the sensor perception model, a weight of a detection result outputted by each of the sensors in the obstacle detecting unit and output an obstacle detection result.

This invention relates to an anti-collision system for a home elevator, which includes a car, a counterweight, and a traction assembly connecting the two. The anti-collision system includes a primary anti-collision trigger, a secondary anti-collision trigger, and an electromagnetic switch assembly. The primary anti-collision trigger is located on the movement trajectory of the car or counterweight and is triggered at its trigger end in response to compression by the car or counterweight. The secondary anti-collision trigger is located on the movement trajectory of the car or counterweight and is located after the primary anti-collision trigger; its trigger end is triggered at its trigger end in response to compression by the car or counterweight. The electromagnetic switch assembly is connected in series with the traction assembly in the safety circuit of the home elevator. Both the primary and secondary anti-collision triggers are connected to the electromagnetic switch assembly, and the electromagnetic switch assembly disconnects upon triggering either one. This achieves anti-collision and improves the safety performance of the home elevator.

The present application relates to the field of aircraft safe operation evaluation, and specifically discloses a kind of eVTOL aircraft crossing runway extension line safety evaluation method, method includes: S1: the safety interval of eVTOL in lateral and vertical direction is calculated, the size parameter of crossing zone is determined, the minimum safety interval of civil aircraft and eVTOL is calculated, according to the size parameter of crossing zone and minimum safety interval, the position of crossing zone is determined;S2: from traffic warning and anti-collision system alarm logic, the collision risk of civil aircraft and eVTOL in crossing zone, the influence of civil aircraft wake vortex sinking is evaluated from three safety evaluation dimensions to the position scheme of crossing zone;S3: if crossing zone position meets the requirement of three evaluation dimensions in above-mentioned step S2 simultaneously, then it is judged as the position of crossing zone that safety evaluation meets the requirement and is output.The present application comprehensively considers multiple safety evaluation dimensions, and improves the safety of crossing zone.

The application discloses a kind of based on multi-dynamic perception's intelligent anti-collision system of driving, comprising: first driving base station, second driving base station, at least one need to be set to prevent collision driving and intelligent anti-collision controller;Need to be set to prevent collision driving is used to obtain the distance information of location;Intelligent anti-collision controller includes data acquisition unit, data processing unit, control unit and execution unit;Data acquisition unit is used to obtain the distance information of need to be set to prevent collision driving, driving speed and working condition data;Data processing unit is used to determine the braking parameter of driving;Control unit prestore has a variety of brake trigger strategy, for matching current operating scene according to braking parameter and calling corresponding brake trigger strategy, generates brake instruction and is issued to execution unit;Execution unit is used to control driving to stop according to brake instruction.The application can avoid too early or too late control car, improve work efficiency while also can guarantee work safety.

The present disclosure provides a kind of anti-collision system of full-revolving rudder propeller device, belong to ship propulsion technical field.The anti-collision system includes: propeller, lifting assembly and guide component, lifting assembly is used to be installed on ship deck, lifting assembly is connected with propeller;Guide component includes: two guide slides and two guide seats, two guide slides are located on the fairing of propeller, and two guide slides are horizontally symmetrical, two guide seats are used to be installed on ship deck and are horizontally symmetrical, guide seat includes guide plate, the plate surface of the guide plate of two guide seats is opposite, from the side of guide plate close to ship deck to the side of guide plate away from ship deck, the spacing between the plate surface of two guide plates gradually increases, propeller is located between two guide plates.The present disclosure can improve the problem that propeller is easily collided when being recycled, and prevent propeller from being damaged.

The application discloses a rectangular stockyard stacker-reclaimer collision prevention method and system, belongs to the technical field of stacker-reclaimer anti-collision analysis, simplifies detection and calculation of three-dimensional position coordinate positions of a cantilever end of a stacker and a top end of a reclaimer rake in a rectangular stockyard, and after checking longitudinal and vertical space coordinates, only accurate measurement of horizontal positions of the two is needed to build software safety anti-collision functions of the two vehicles; a set of laser ranging sensors is added to each stacker-reclaimer, and the set of laser ranging sensors is used for tracking and redundancy backup; position detection sensors are evenly arranged beside tracks on both sides of the stockyard, and encoder data on traveling wheels of the stacker-reclaimer is compared and checked; in addition to building software installation anti-collision functions based on accurate detection of equipment coordinate positions, a set of ultrasonic ranging and rope anti-collision systems is arranged on a large arm of the stacker-reclaimer, and the set of ultrasonic ranging and rope anti-collision systems together form a safety anti-collision system of the rectangular stockyard stacker-reclaimer, and create a fundamental guarantee for safe and stable operation of unattended operation of the stockyard.

A working machine includes a body, a ground engaging propulsion structure supporting the body, a working arm, a control system, and a collision avoidance system. The collision avoidance system has a camera configured to monitor an area in its field of view and to generate an output signal to the control system in response to a detected animate object. The control system includes a processor configured to execute a machine learning algorithm trained to determine whether the detected object is an animate object to determine whether an animate object is within the field of view. The system provides an output to alert an operator of the working machine if it is determined that an animate object has been detected in the field of view of the at least one camera.

A method for recognizing car collision warning icons first calculates the inter-frame similarity sequence using a color histogram to obtain keyframe images. Then, feature extraction and matching are performed on selected reference images, and the rectangular border coordinates of the warning icon area are obtained after perspective transformation. Next, the remaining keyframe images are sliced ​​based on the rectangular border coordinates of the warning icon area. By extracting and matching features from the sliced ​​areas of each keyframe image, the number of valid matching point pairs in all keyframe images is obtained. This number is compared with a preset baseline number to select the recognized images containing the warning icon, thus achieving the recognition of car collision warning icons and outputting keyframes containing time information. This method enables fast and effective recognition of car collision warning icons, significantly improving the efficiency of car collision system testing and reducing manpower costs.

The invention relates to the technical field of vehicle automatic control, in particular to a vehicle anti-collision automatic control method and device.The method comprises the steps that obstacles in a preset range of a vehicle are detected, a driver is reminded after the obstacles are detected, and the collision danger level is evaluated; the vehicle speed is automatically adjusted in light danger, and a driver controls the vehicle to prevent collision; and the system automatically controls collision prevention in severe danger. Meanwhile, obtaining driver state information and judging whether the information is abnormal; if the state is abnormal, sending a prompt and starting an auxiliary driving mode to control the vehicle to prevent collision, and if the state is normal, executing anti-collision operation according to the corresponding danger level. According to the method, the anti-collision automatic control system is introduced to assist a driver in accurate judgment when encountering dangerous conditions, and corresponding auxiliary driving operation is executed in time, so that the safety and reliability of vehicle driving are effectively improved. Therefore, the problems that an existing vehicle anti-collision system is single in function, and it is difficult to effectively analyze emergency situations and execute corresponding operation in time are solved.

Low power and / or low footprint optical communication technologies that support short to medium range exoatmospheric communications and provide bidirectional communication with nearly spherical coverage.

An anti-collision system for an electric pallet truck, and an anti-collision method. The anti-collision system comprises an elongated flexible base body and a plurality of flexible convex teeth, wherein the flexible convex teeth are arranged on one side of the flexible base body and are sequentially arranged in the direction of length of the flexible base body, tooth grooves are formed between adjacent flexible convex teeth, the flexible base body is arranged around the outer side of a chassis of the electric pallet truck, and the flexible convex teeth are located between the flexible base body and the chassis. The anti-collision system can effectively prevent collisions or reduce collision severity, thereby improving the operational safety of the electric pallet truck. When a buffer component of the anti-collision system is arranged around the outer side of a curved component that is protected against collision, the buffer component can fit well with a curved position of the component that is protected against collision, thereby ensuring an anti-collision effect. Moreover, the buffer component can be bent freely on the basis of the shape of the component that is protected against collision, thereby being suitable for chassis of different shapes, and avoiding the problems of high cost and slow delivery caused by separately manufacturing processing molds for anti-collision components for the chassis of different shapes.