160 results about "Collision test" patented technology

The invention provides a double-mechanical-arm path planning method and device and a double-mechanical-arm control system.The double-mechanical-arm path planning method comprises the steps that path planning is conducted on double mechanical arms based on a given starting point and a given target point, and a double-mechanical-arm motion path is generated; time information is added to the motion paths of the double mechanical arms, and time paths of the double mechanical arms are generated; performing a collision test on the double mechanical arms based on the time path of the double mechanical arms; if the collision test is passed, the double-mechanical-arm time path serves as a target path; and if the collision test is not passed, the time path of the slave mechanical arm is adjusted based on the time path of the master mechanical arm until the collision test is passed, and the time path of the master mechanical arm and the adjusted time path of the slave mechanical arm serve as target paths. According to the technical scheme provided by the invention, the rationality and feasibility of path planning are improved.

The invention discloses a method for reducing the loss of an automatic driving vehicle collision test device, and the method comprises the following steps: obtaining preset test vehicle parameters which comprise the maximum deceleration amax of an automatic emergency braking system, the test vehicle speed vtest and the communication system delay time t delay; when an emergency braking system of the test vehicle is triggered, emergency avoidance triggering time t triggering is calculated through a formula t triggering = v test / amax + t delay; after position data of the test vehicle and the background target object are collected in real time, the real-time relative distance D is calculated, and the collision time t collision is calculated through a formula t collision = D / v test; and when t collision is less than or equal to t trigger, driving the background target object to move away from the collision direction through the mechanical execution mechanism. Before collision, the target object is actively driven to be away from the collision direction, and structural damage caused by direct collision can be avoided.

The utility model discloses intelligent mowing robot test equipment, which comprises a workbench, a button test assembly, two sets of collision test assemblies and a three-axis electrical parameter module, the workbench is provided with a test base, a mowing robot is placed on the test base, the button test assembly is arranged on one side of the test base, and the two sets of collision test assemblies are connected with the three-axis electrical parameter module. The collision testing assemblies are arranged at the front end and the rear end of the testing base respectively, the three-axis electrical parameter module is arranged on the testing base, the button testing assembly is used for testing whether a button of the mowing robot can be normally started or not, and the collision testing assemblies are used for testing the collision function of the mowing robot. The three-axis electrical parameter module is used for testing information of a wheel set and a cutter head of the mowing robot. According to the scheme, the mowing robot is tested in sequence through the button testing assembly, the two collision testing assemblies and the three-axis electrical parameter module, so that the testing efficiency of the mowing robot is effectively improved, and the testing process of the mowing robot is simplified.

The invention discloses a cleaning robot anti-collision test system and method, a medium and a product, and relates to the technical field of robots, the cleaning robot anti-collision test system comprises a vehicle model, a vehicle model control module and a test system background, and the vehicle model is provided with a touch sensor; the vehicle model control module is used for controlling the vehicle model to run based on the configured running parameters when the anti-collision function of the cleaning robot is tested; the touch sensor is used for collecting collision data and transmitting the collision data to the test system background; and the test system background is used for receiving the collision data and generating a test result for the anti-collision function of the cleaning robot based on the collision data. According to the invention, random movement of the vehicle in the test process is avoided, the test conditions are fixed and repeatable, the repeatability and consistency of the anti-collision test are ensured, and thus the accuracy of evaluating the anti-collision performance of the cleaning robot is improved.

The invention discloses a transparent object mechanical arm grabbing method and system based on semantic geometry fusion perception, and the method comprises the steps: obtaining an RGB image and an original depth image of a to-be-grabbed object, carrying out the fusion prediction based on a pre-trained monocular perception network model, and outputting a segmentation mask and a restoration depth value of the to-be-grabbed transparent object; performing restoration processing on the original depth image through the restoration depth value, and outputting a complete three-dimensional point cloud of the to-be-grabbed object; object grabbing detection is carried out based on the grabbing detection network model, and a plurality of candidate 6-DoF grabbing postures and confidence degree scores and disturbance tolerance degrees corresponding to the grabbing postures are obtained; and non-maximum suppression is conducted through a collision test, selection is conducted, and the optimal grabbing posture is determined to achieve grabbing of the transparent object. According to the method, the object grabbing accuracy in a real scene can be improved. The transparent object mechanical arm grabbing method and system based on semantic and geometric fusion perception can be widely applied to the technical field of robot grabbing.

The utility model discloses a collision testing device which comprises a movable base, a testing obstacle is fixedly installed on the upper side of the movable base, a switching mechanism, guide wheels and universal wheels are arranged on the lower side of the movable base, and the switching mechanism can make the guide wheels / universal wheels make contact with the ground independently. When an obstacle is impacted by an automatic driving vehicle, the guide wheels can be quickly separated from the preset track, and the universal wheels are released to be in independent contact with the ground. By means of the design, the obstacle can flexibly move and be far away from the bottom of the automatic driving vehicle by means of impact force after collision, the risk that the obstacle is rolled is effectively avoided, and therefore the safety of the testing process is improved. The obstacle can automatically adjust the posture and continue to participate in the test after being impacted, so that test interruption and repeated setting caused by damage are reduced, and the repeatability of the test is improved.

To easily measure movement of a vehicle and a collision target object during a collision test.SOLUTION: A collision test measuring device 20 measures movement of a vehicle 11 and a barrier 12 during a collision test in which the vehicle 11 collides with the barrier 12. A storage section 22 stores a video of the vehicle 11 and the barrier 12 captured with a camera 13 during the collision test. A first data acquisition section 24 detects a feature point from a specific still image through image recognition based on shapes of the vehicle 11 and the barrier 12 shown in the specific still image and acquires first data in which coordinates of the feature point are associated with a capture time of the specific still image. A second data acquisition section 25 detects a characteristic point from each of a plurality of subsequent still images by tracking the feature point detected by the first data acquisition section 24 through the image recognition and acquires second data in which the coordinates of the feature point are associated with the captured time of the subsequent still images.SELECTED DRAWING: Figure 1

The invention provides a bumper assembly low-speed collision test system and method, and the system comprises a mobile barrier trolley, a universal rapid installation clamp, a multi-sensor integrated measurement module, and a data collection and processing system, and can adapt to different bumper assemblies to be tested through the universal rapid installation clamp, simulates the real collision process, and improves the test precision. In the process that the traction system drives the movable barrier trolley to move along the track to conduct the collision test, the multi-sensor integrated measurement module can collect collision data and draw a data curve, and the accuracy of the collision test result is improved. And then the data acquisition and processing system scores the maintenance economy, the energy absorption efficiency, the passenger protectiveness and the structural integrity according to the collision data and the data curve, grades the collision test result according to the scoring result, and finally can output a depth test report containing rating and improvement suggestions. The method is used for supporting and improving the design and optimization capability of the bumper assembly.

The invention provides a rail vehicle collision test system, which relates to the technical field of rail vehicle collision tests and comprises a collision simulation device, a wall body, a test vehicle body and a data acquisition device. The test vehicle body is configured to move towards the wall body at a preset speed, and dummy passengers are carried in the test vehicle body. The collision simulation device comprises an energy absorption assembly and an adjusting assembly, the energy absorption assembly is installed on the wall and suitable for colliding with the test vehicle body, and the adjusting assembly is configured to respond to the crumple amount of the energy absorption assembly in the collision process and adjust the counter-acting force applied by the energy absorption assembly to the test vehicle body so as to simulate the collision process of the real vehicle with the energy absorption structure. The data acquisition device is arranged on the dummy passenger and is suitable for acquiring data information of secondary collision of the dummy passenger in the test vehicle body.

The invention relates to the technical field of robot collision test, and provides a human body model for collaborative robot interaction collision test and a control method thereof, and the human body model comprises a head module which comprises a head supporting part and a head model covering the outer layer of the head supporting part, and a three-dimensional force sensor is fixed on the side surface of the head module; the neck module comprises a neck skeleton rotationally connected with the head supporting part, and a six-dimensional force sensor is arranged at the joint; the trunk module comprises a trunk skeleton hinged to the neck skeleton and a thoracic cavity model covering the outer layer of the trunk skeleton, a plurality of three-dimensional force sensors are arranged on the front chest part of the trunk skeleton, and a three-dimensional force sensor and a flexible sensor are arranged on the back part; the big arm skeleton is connected with the trunk skeleton and is provided with a three-dimensional force sensor; the pose adjusting module comprises a horizontal rotating structure and a linear module, and simulates human body steering and gait movement so as to drive the head module, the neck module, the trunk module and the upper limb module to move and collide with the collaborative robot. Omnidirectional capture and analysis of the space collision force are realized.

The invention relates to a collision test method and system of a power battery, a vehicle and electronic equipment, and relates to the technical field of battery testing. The method comprises the following steps: carrying out a collision test on a vehicle to obtain an extrusion boundary of a power battery assembled in the vehicle; wherein the extrusion boundary comprises the maximum allowable deformation amount and the maximum allowable deformation speed; and based on the extrusion boundary, performing a collision test on the power battery to determine the safety performance of the power battery. Therefore, the collision test can be carried out on the power battery under a more accurate working condition.

The invention relates to the technical field of vehicle collision measurement, in particular to a dummy head displacement measurement method and system based on a sensor and a head model, and the method comprises the steps: marking a camera, a body-in-white backboard reference point and a dummy head key position in a test scene before a test is started, and forming corresponding marking points; recording an initial three-dimensional coordinate corresponding to each mark point through a three-coordinate measuring instrument; parameters of acceleration sensors arranged on the mass center of the body in white and the mass center of the head of the dummy are set; after the simulation collision test is finished, collecting video data shot by the camera and acceleration data recorded by the acceleration sensor; determining displacements of the mark points on the key positions of the head of the dummy in X, Y and Z, and outputting a displacement curve corresponding to the mark points on the key positions of the head of the dummy; and determining the relative displacement of the corresponding dummy mass center in the X, Y and Z directions at the Tmax moment.

The invention relates to the technical field of automobile collision, and discloses a vehicle structure optimization method, device and equipment and a medium, and the method comprises the steps: obtaining the obstacle avoidance intrusion amount of each unit in a to-be-checked region in a vehicle collision test; determining the average intrusion amount of the to-be-inspected area according to the obstacle avoidance intrusion amount; determining an absolute deviation between the obstacle avoidance intrusion amount and the average intrusion amount, and configuring a color matched with the absolute deviation for each unit to generate a visualization graph; and determining a to-be-optimized area from the visual graph, and determining an optimization direction of the to-be-optimized area based on the absolute deviation so as to optimize the vehicle structure according to the optimization direction. According to the technical scheme, traditional experience and trial and error methods can be broken through, a more scientific and systematic optimization means is adopted, the design efficiency of collision compatibility is improved, and waste of computing resources and time is reduced.

The invention discloses a collision test method and test system for an energy storage element of an electronic detonator, and belongs to the technical field of initiating explosive device test. The method comprises the following steps: blocking an electronic detonator sample with a first rotating speed by adopting a blocking mechanism on a collision test system, so that the electronic detonator sample collides with the blocking mechanism; capturing a voltage curve image at the collision moment T through a voltage curve monitoring and processing unit, and calculating to obtain a first drop amplitude value under the maximum voltage at the collision moment T according to the captured voltage curve image; capturing a voltage curve image from the collision moment T to the first collision duration T + T1 through a voltage curve monitoring processing unit, and calculating to obtain a voltage drop rate from the collision moment T to the first collision duration T + T1 according to the captured voltage curve image; and evaluating the impact resistance of the energy storage element according to the obtained first drop amplitude under the maximum voltage and the voltage drop rate. The collision test method provided by the invention is beneficial to improving the accuracy of a collision test result.

The invention relates to a system (100) for optimizing the configuration of crash tests and simulations for vehicle development. The system (100) comprises a data preparation module (200) that splits a data set (210) containing crash test and simulation data into a first training data set (210), a validation data set (230), and a test data set (240); a training module (300) with a first AI model (350) for creating configurations of physical crash tests and virtual simulations, wherein the first AI model (350) is trained with the first training data set (220); and a data value module (400) that calculates data values ​​(φ(i)) for the data points (i) of the crash test and simulation data of the training data set (220) with respect to the validation data set (230).a model optimization module (500) comprising a second AI model (550) and a training data generator (570), wherein the training data generator (570) creates a second training data set (580) which is used to train the second AI model (550) to predict the relationship between input parameters (p) and the computed data values ​​(φ(i)); a parameter module (700) which uses the trained second AI model (550) to find crash test parameters with a maximum data value (φ(i)).

The invention relates to the technical field of simulation testing, and discloses a probe collision detection method, device and equipment and a medium, and the method comprises the steps: inputting all to-be-measured points into a simulation test model; marking all points to be measured on the workpiece model; calling an initial probe model from the probe database, and controlling the initial probe model to perform collision test on the to-be-measured point on the workpiece model through the measuring rod model to obtain initial collision test results corresponding to each initial measurement angle of the initial probe model; and when the initial collision test results corresponding to all the initial measurement angles of the initial probe model are the first test results, replacing the next probe model and retesting until a second test result is obtained or the initial collision test results corresponding to all the probe models are the first test results. According to the invention, through the simulation collision test, the collision between the measuring rod and other objects and the collision between the measuring needle and the workpiece are avoided, and the cost and risk of actual operation are reduced.

This application discloses a boom collision detection method, apparatus, engineering equipment, and machine-readable storage medium, relating to the field of engineering equipment technology. Upon detecting a collision with the boom, the method determines the measured collision level based on the momentum change information of the boom during the collision. The collision severity is determined based on this momentum change information, providing effective data reference for subsequent safety measures and improving the accuracy of boom collision detection. Furthermore, safety measures are taken for the boom based on the measured collision level and a target collision level, where the target collision level is determined by conducting a collision test on the boom using a preset collision energy. By determining the severity of the collision through the target collision level and implementing targeted safety measures, the effectiveness of boom collision handling and the safety of boom operations are improved.

The application provides a collision test device, a test system and a test method, and belongs to the technical field of vehicle collision tests. The test device comprises a moving platform and a limiting assembly. The moving platform is slidably connected to a test base in a first direction. The limiting assembly is arranged on the moving platform and surrounds a limiting space. The limiting space is used for limiting a to-be-tested object. The limiting space penetrates the moving platform downward, so that the bottom of the to-be-tested object is supported on the test base. The limiting space has an opening penetrating the moving platform forward in the first direction. After the to-be-tested object is accelerated to a preset speed by the moving platform, the to-be-tested object is separated from the limiting space and collides with a moving barrier. The test system comprises the test device, a stop mechanism and the moving barrier. The test method is performed by using the test system. The collision test device, the test system and the test method provided by the application can reproduce the motion posture of a driver during a collision and improve the effectiveness of driver rescue.

This invention relates to the field of simulated collision testing technology, specifically to a method for a 25% offset frontal collision sliding table test based on dummy displacement. The method includes: S1, acquiring acceleration change data of the entire vehicle body and the dummy during a 25% offset frontal collision test; S2, determining the acceleration waveform of the sliding table test based on the X-axis acceleration change data acquired in S1; and S3, determining the body-in-white deflection angle of the sliding table test based on the dummy acceleration change data acquired in S1. This invention provides a standardized sliding table test parameter setting process for sliding table collision tests. The set sliding table test parameters are closer to those of a real vehicle collision test, and there is no need for video analysis of the real vehicle collision process. This reduces computational load and ensures high data repeatability.

The invention discloses a resistor quick connection device and a data acquisition system for a crash test, and belongs to the technical field of crash test devices. The resistor quick connection device comprises a generator terminal, two PINs and a resistor; the generator terminal is the same as a generator terminal corresponding to an air bag or a safety belt on the to-be-tested vehicle; the diameter of each PIN is matched with the size of a terminal cavity of the generator terminal, the contact ends of the two PINs are respectively inserted into the two terminal cavities of the generator terminal, and the two PINs are fixedly connected with the generator terminal; and the first end and the second end of the resistor are fixedly connected with the connecting ends of the two PINs respectively. In a collision test, when a resistor is needed to shield an air bag or a safety belt, a generator terminal of the air bag or the safety belt is pulled out from a wire harness terminal, the device is inserted into the wire harness terminal, then connection of the resistor can be rapidly completed, and the device is simple in structure, convenient to operate, capable of being repeatedly used and low in cost.

The present invention relates to a deep-sea collision test device in a vertical pressure cylinder and a method for using the device, comprising a vertically arranged pressure cylinder, a support frame supported on a support plate at a lower portion of the pressure cylinder, a test model fixedly mounted on the support plate located inside the support frame via a fixing seat, a pressure-resistant electromagnetic suction component installed on the inner top surface of the support frame directly above the test model, and when the pressure-resistant electromagnetic suction component is energized, a magnetic force is generated to adsorb a heavy ball at the center of the bottom surface, and when the pressure-resistant electromagnetic suction component is de-energized, the magnetic force disappears and the heavy ball falls freely; a safety rope is connected between the heavy ball and the inner top surface of the support frame, thereby realizing a deep-sea collision test in the vertical pressure cylinder through a power-off separation function, and being able to simulate collision tests of different load sizes by adjusting the height and mass of the heavy ball, which greatly contributes to the study of the structural response of underwater engineering structures under the action of heavy ball collision.

The invention relates to a target structure capable of rapidly replacing a target plate for a navigation body underwater collision test, and relates to the field of navigation body tests. The target plate component is positioned above the target main body and is connected with the target main body, and the target main body is detachably connected with the target plate component; the supporting base is located below the target main body and used for supporting the target main body. The target collision device has the effect that the function that a navigation body collides with the target underwater according to the specified speed and angle is achieved.

The invention discloses a train passenger collision injury assessment method and device and a storage medium, which are applied to the technical field of rail transit, and the method comprises the following steps: determining a to-be-tested collision scene; collision parameters conforming to the collision scene are applied to the train collision simulation model, and an acceleration curve used for reflecting the designated position in the compartment is obtained; an acceleration curve is applied to the established simulation model, and a collision simulation result used for reflecting damage characteristics of the dummy model is obtained; controlling the sliding table to move according to the acceleration curve so as to obtain a collision test result of the customized dummy by utilizing the collision between the customized dummy on the sliding table and the test environment; wherein each damaged part of the dummy model is a sensitive detection part of the customized dummy; and based on the collision test result, generating a collision safety evaluation result of the tested train for the specified position in the collision scene. According to the scheme, train collision evaluation can be effectively achieved, cost and resources can be saved, and evaluation accuracy is guaranteed.

The utility model relates to the field of automobile test technology discloses a kind of quick replaceable simulated windscreen mounting structure, including chassis and simulated windscreen body, the chassis is fixedly installed with front support frame and rear support rod, the rear support rod is provided with at least same two, two the rear support rod between fixedly installed with support cross bar and positioning frame one, the support cross bar outer side is fixedly installed with connecting rod at the one end of rear support rod away from chassis. The quick replaceable simulated windscreen mounting structure, by the cooperation of fixed seat and limiting frame, when force sensing assembly is installed, force sensor body can be inserted between fixed seat and limiting frame first, it can be convenient for the quick installation of both, and when overall force sensing assembly is installed, it can protect force sensor body, avoid simulated windscreen body in collision test, easily lead to force sensor body easily damaged and displacement due to collision.

The invention discloses a driver simulation method and device in a collision scene, a storage medium and a terminal, and the method comprises the steps: obtaining a to-be-detected image which is a posture image when a driver operates a simulation driver; creating a posture recognition model, wherein the posture recognition model comprises a 2D posture recognition unit, a 3D posture recognition unit and a fine adjustment unit; the 2D posture recognition unit is used for recognizing a 2D posture of a driver, the 3D posture recognition unit is used for converting the 2D posture into a 3D posture, and the fine adjustment unit is used for adjusting parameters of a posture recognition model; recognizing the to-be-detected image based on a posture recognition model to obtain the posture of the driver, and judging whether the driver makes an emergency posture in a collision scene or not; the dummy is controlled to make corresponding actions according to the postures; and if the driver makes the emergency posture in the collision scene, acquiring collision damage information of the dummy. According to the method, the accuracy of human injury evaluation in the vehicle collision test is greatly improved, and help is provided for improvement and optimization of vehicle safety.

The embodiment of the invention discloses a forward collision test analysis method and device, electronic equipment and a storage medium, and the method comprises the steps: executing an active emergency braking simulation task of a vehicle active emergency braking system according to a preset test scene case and a preset test speed, and collecting test feedback data; determining a test index attribute value corresponding to the at least one test index dimension based on a preset test scene case, a preset test speed, the test feedback data and a pre-trained collision result analysis model; and determining a target test attribute corresponding to the active emergency braking simulation task based on the test index attribute value corresponding to each test index dimension, so that the transformation of the vehicle active emergency braking system test from traditional manual evaluation to intelligent and efficient analysis is realized on the whole. The test efficiency of the vehicle active emergency braking system and the accuracy of the test result are improved.

The application discloses a kind of etching equipment for automobile simulation collision test honeycomb aluminum core block, including: etching pool, neutralization pool and cleaning pool;First sliding member and second sliding member, the second sliding member is provided with the clamping plate for connecting honeycomb aluminum core block;The second sliding member is configured to be immersed or exited etching liquid with first speed in the first etching area, and be immersed or exited etching liquid with second speed in the second etching area, and the first speed is greater than or less than the second speed.In the application, honeycomb aluminum core block is divided into first etching area and second etching area along the height direction, and different etching areas are immersed or exited etching liquid at different speeds, so that the change speed of etching amount of first etching area and second etching area is not the same, and the phased mechanical property change can be realized, and the collision position of automobile can be more realistically simulated.

The invention relates to the field of ships, in particular to a ship collision test system and test method. The ship collision test system is characterized in that front and rear ashore fixing frames are arranged on the two banks of a pool respectively, winches are arranged on the ashore fixing frames, guide rails are arranged between the front and rear ashore fixing frames on the same side, a movable frame stretches across the two banks of the pool, the two ends of the movable frame are movably connected to the guide rails respectively, and the movable frame is pulled by a steel wire rope to move on the guide rails; the test ship model is movably connected with the middle part of the movable frame and moves in the pool; a speed measuring instrument is arranged in the test ship model; a test plate is arranged in the pool, and a sensor for dynamic data acquisition is mounted on the back of the test plate and used for acquiring relevant corresponding data of the test plate after the test ship model collides with the test plate; and the control unit is used for receiving a signal of the speed measuring instrument and controlling the traction direction and the traction speed of the winch. A crash test is completed by using the system. The method is accurate, rapid, convenient to control and low in cost.

The present disclosure relates to a collision test method and system based on the electrified driving condition of a vehicle. Based on the high-voltage system of the vehicle under test being in a standby running state, the pedal parameters are determined based on the test gear of the vehicle under test. Within a preset time window before the collision occurs, the pedal opening degree of the vehicle under test is controlled by the pedal simulation device according to the pedal parameters; the physical response data and high-voltage response data of the vehicle under test at the time of the collision are obtained, and based on the physical response data and high-voltage response data, the collision test result of the vehicle under test is determined. The high-voltage and large-current condition can be constructed before the collision occurs based on the pedal simulation device, so as to comprehensively examine the electrical safety and structural safety of the vehicle under test in a real accident scene; the reliability of the high-voltage system automatic power-off function is also verified, the probability of vehicle fire caused by high-voltage system failure in a real accident is effectively reduced, and key technical basis and data support are provided for formulating safety evaluation standards.