209 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 relates to the technical field of battery pack detection, and discloses a battery pack bottom scarification test obstacle and battery pack collision test system, which comprises a substrate used for being pre-buried in a ground foundation; the fixed seat is detachably assembled on the base plate, and the fixed seat is provided with an inclined surface; the movable pressing blocks are detachably assembled on the inclined face, each movable pressing block is provided with an assembly hole, the multiple movable pressing blocks are arranged in the inclination direction of the inclined face at intervals, and the assembly holes of the movable pressing blocks are coaxially formed; the collision column is inserted into the assembly hole, and the bottom end of the collision column is assembled with the fixed seat in a supporting and stopping manner. The base plate protects the ground foundation, and the ground is prevented from being damaged in the testing process; the fixed seat is detachably connected with the substrate, and the fixed seat, the collision column and other test equipment can be detached after the test is finished; the collision column is inserted into the assembly hole, when the collision column is bent and damaged after testing, only the collision column needs to be replaced, the fixing base and the movable pressing block can be repeatedly used, and the testing cost is reduced.

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.

The invention relates to the technical field of mathematical simulation, in particular to a vehicle collision test simulation degree prediction method and device and electronic device.The method comprises the steps that a training set of a vehicle collision test is obtained, and the training set comprises test parameter samples and a simulation degree result of the collision test corresponding to each sample; calculating an entropy value of each subset after each test parameter in the training set divides the training set, and calculating a corresponding overall entropy value after the test parameter divides the training set according to the entropy value; and gradually determining a plurality of division nodes in the training set according to the overall entropy value corresponding to each test parameter after the training set is divided, generating a prediction model of the vehicle collision test simulation degree according to the divided training set, and performing collision test simulation degree prediction on the target vehicle collision test by using the prediction model. Therefore, the problems that the simulation degree prediction cost of the vehicle collision test is high and the vehicle collision test is difficult to popularize and apply in the prior art are solved.

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 discloses an intelligent networked automobile communication module multi-mode adjustment anti-collision test device, and belongs to the technical field of communication module tests.The intelligent networked automobile communication module multi-mode adjustment anti-collision test device comprises a storage cabinet, a material sliding seat is arranged in the storage cabinet, a rack and a back plate are fixedly installed at the top of the storage cabinet, and scale marks and a recording plate are arranged on the outer surface of the back plate; a control motor is fixedly mounted in the storage cabinet; according to the invention, the impact release mechanism and the anti-collision test mechanism are arranged in a matched manner, so that the comprehensiveness of the equipment is improved, the working state of the automobile communication module in the collision process can be recorded, the external condition of the automobile communication module can be recorded, and the initial point location of the impact release mechanism can be recorded; a large amount of data is provided for subsequent analysis, meanwhile, collision modes can be rapidly changed, different results generated by different forms of impact force can be recorded, the testing diversity is high, and the practical application effect of the equipment is good.

The invention relates to the technical field of automobile research and development, and particularly provides a collision test system and a vehicle development method. The collision test system comprises a plurality of test assemblies respectively matched with each vehicle part, a trolley capable of moving on a set advancing path, and a rigid barrier arranged at the tail end of the advancing path, a mounting substrate is arranged at the front end of the trolley, the testing assembly comprises a fixed mounting part for fixedly mounting a vehicle part and an impact module for impacting the vehicle part, and the impact module and the fixed mounting part are respectively arranged on the mounting substrate and the rigid barrier in an exchangeable manner. According to the collision test system provided by the invention, the collision test task of each vehicle part can be completed by using one trolley by adapting to various test components, so that the problem that the simulation analysis verification precision of the vehicle parts is insufficient is solved, the number of times of the whole vehicle collision test is reduced, and the vehicle research and development cost is reduced.

The invention belongs to the technical field of automobile collision safety, and particularly relates to a collision test dummy biological fidelity evaluation method and device based on frequency spectrum energy and a medium. Firstly, dummy collision response data and collision response data, stored in a database, of different body parts of a human body are collected; a preset spectral analysis method is called to analyze the collected dummy collision response data and the collision response data of different body parts of the human body, and spectral energy of collision response of the dummy and the different body parts of the human body is obtained through calculation; calculating the biological fidelity of the dummy based on the difference of the frequency spectrum energy of the collision response of the dummy and different parts of the human body; and finally, evaluating the dummy biological fidelity obtained by calculation according to a preset evaluation standard, and outputting a dummy biological fidelity grade. According to the method, the dynamic response characteristics of the dummy in different frequency spectrum energy ranges can be deeply analyzed, so that the biological fidelity of the dummy is accurately measured, and the simulation precision of the dummy to the real response of a human body is improved.

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 utility model provides a detection device for an automobile safety performance engineering anti-collision test, belongs to the technical field of automobile collision tests, and aims to solve the problem that a mounting plate and a rail car are inconvenient to connect when a mobile dummy test is carried out in the prior art. The first lower limb is fixedly connected to the upper surface of the mounting plate; the two second connecting pieces are fixedly connected to the lower portions of the second lower limb and the trunk respectively; the four suction cups are dispersedly and fixedly connected to the interior of the mounting plate; the quick fixing assembly is arranged on the upper surface of the mounting plate; the two sets of splitting and splicing assemblies are arranged in the two first connecting pieces and the two second connecting pieces in a scattered mode. According to the utility model, the sucker is stably adsorbed on the ground or a track trolley by rotating the knob, the operation is simple and rapid, the placement is relatively stable, the second lower limb can be independently and rapidly detached, the overall height of the dummy is convenient to adjust, and diversified test requirements are met.

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 present invention discloses a parking path planning method and device, electronic device and storage medium, the planning method comprises the following steps: obtaining a rasterized map of the surrounding environment of the automobile; obtaining the current point and the target position of the automobile, performing an extended search process from the current point and obtaining a target point set containing all points under exploration, obtaining a first cost minimum point from the target point set, and when the distance between the first cost minimum point and the target position is less than or equal to a preset threshold, using an RS curve algorithm to calculate a first RS curve trajectory connecting the first cost minimum point and the target position, and performing an obstacle collision test on the first RS curve trajectory based on the rasterized map, if the obstacle collision test is passed, the parking path of the automobile is formed by splicing the first cost minimum point and the first RS curve trajectory. The planning method can automatically avoid obstacles.

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 invention discloses an underwater vehicle collision test device and method in a deepwater environment, relates to the technical field of underwater vehicles, and aims to solve the problem that an underwater vehicle-obstacle collision simulation process is difficult to reflect a real collision condition due to the fact that an existing numerical simulation mode is difficult to simulate a real deep sea environment. According to the device, a sensor and a mass block assembly are arranged in an underwater vehicle scale model, the underwater vehicle scale model and an obstacle are located in a water pool, a main body driving mechanism pulls the underwater vehicle scale model to move, and a main body carrying mechanism carries and adjusts the angle and height of the underwater vehicle scale model; the obstacle carrying mechanism clamps obstacles and adjusts the angles of the obstacles, and the top end of the obstacle carrying mechanism is installed on the fixed platform. The method comprises the following steps: adjusting the moving speed and angle of the scale model of the underwater vehicle and the angle of an obstacle, enabling the scale model of the underwater vehicle and the angle of the obstacle to collide according to the preset speed and angle, and collecting the acceleration and collision force data of the scale model of the underwater vehicle in the collision process.

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.