100 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 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 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 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 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 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 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.

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.

The application provides a collision detection optimization method and system for virtual reality training. The method first obtains the second vertex position coordinates of a virtual reality model in a two-dimensional space based on model grid information. The historical speed information of the virtual reality model of a target is obtained, and the inertial collision speed of the virtual reality model is obtained through inertia prediction according to the historical speed information. The inertial collision box model of the virtual reality model is generated according to the second vertex position coordinates of the target model and the inertial collision speed of the virtual reality model. The collision object collision box model is generated, and the inertial collision detection is performed according to the inertial collision box model and the collision object collision box model. The inertial collision speed of the target test object can be predicted based on the historical motion speed of the target test object. The inertial collision box is generated according to the inertial collision speed of the target test object and the vertex position information, and the inertial collision detection is performed. Finally, the accuracy of the collision test result in the virtual reality scene is improved.

The invention discloses a propeller collision test device and a test method thereof, and the device comprises a closed test cabin which is provided with refrigeration equipment, a first installation platform plate which is disposed in the closed test cabin, is used for bearing a propeller, and is adjustable in height, and a drive assembly which is disposed on the first installation platform plate and is used for driving the propeller to rotate. The second installation platform plate is used for bearing an ice sample, the ice outlet assembly is arranged above the second installation platform plate and used for supplying the ice sample and adjusting the collision angle of the ice sample and the propeller, and the measuring assembly is installed in the closed test cabin and used for synchronously measuring images and load data in the collision process of the propeller and the ice sample. According to the invention, collision tests of different heights and different collision angles can be realized, the test height and angle are flexibly set, and the collision tests under the same working condition can be conveniently repeated.

The present invention relates to a method and device for generating augmented reality graphic content representing a vehicle crash test. To this end, initial data representing a three-dimensional video sequence of a vehicle crash test involving a crash dummy are received (31). A digital twin is selected (32) from a plurality of digital twins, each digital twin of the plurality of digital twins being representative of a three-dimensional model of a dummy representing a person with a specific morphology.The augmented reality graphic content is generated (34) from the first and second data received (33) and corresponds to a three-dimensional model of the mannequin associated with the selected digital twin by replacing the mannequin in the three-dimensional video sequence with the three-dimensional model of the mannequin associated with the selected digital twin. Figure for the abstract: Figure 3.

The application provides an automatic driving vehicle collision test system, and relates to the technical field of automatic driving vehicle testing.The automatic driving vehicle collision test system comprises a rack, a transverse moving mechanism, a connecting mechanism, a fixed part of the transverse moving mechanism is installed on the rack, the connecting mechanism comprises a connecting pipe, a fixed block, an elastic piece and a telescopic rod, the top of the connecting pipe is installed on the moving part of the transverse moving mechanism, the fixed block is fixedly arranged in the connecting pipe, the bottom of the telescopic rod penetrates through the fixed block and is slidably connected, and the elastic piece elastically connects the fixed block and the telescopic rod.The scheme provides a buffer distance for the reaction and shutdown of the equipment after the collision, reduces the damage of the automatic driving vehicle collision test to the vehicle and the test equipment, provides effective protection effect, and prolongs the service life of the collision vehicle body and the test vehicle.

The present application belongs to the technical field of automobile collision analysis, and particularly relates to a dynamic characteristic profile identification method based on real-time measurement of a flexible array pressure sensor. The sensor is first arranged on the front of a dummy and bound with a safety belt. During a collision test, pressure data is sampled through a parallel hierarchical staggered sampling architecture, and a collection result is obtained through time cross-sampling combination. Then, the result is sequentially subjected to signal amplification, noise removal, data correction and missing supplement. Subsequently, a dummy force surface profile visualization interface is constructed, the pressure mean value in a preset time window is calculated as a display threshold, and the interface parameters are updated. Then, the sensor discrete pressure points in the interface are interpolated and smoothed, and a binary image is obtained through original image processing. Finally, a profile extraction algorithm is called to complete core profile extraction and post-processing, and a safety belt acting dummy force profile visualization image is obtained. The present application can solve the problems of insufficient monitoring precision of safety belt on dummy force distribution and low data analysis visualization degree in the prior art.

The utility model provides a scale rail vehicle collision test device, comprising a collided test vehicle marshalling which is formed by connecting a plurality of scale test vehicles and is used for simulating collided rail vehicles; the active collision vehicle marshalling is formed by connecting a scaling drive vehicle and a scaling test vehicle and is used for simulating active collision rail vehicles; the straight track is a reduced-scale track for bearing the collided test vehicle marshalling and the active collision vehicle marshalling; and the multi-source data acquisition system comprises a speed sensor for measuring the collided test vehicle marshalling, an acceleration sensor for measuring the active collision vehicle marshalling, and a high-speed camera for shooting a collision scene. The device is high in repeatability and low in requirement for a data acquisition device, greatly reduces the danger of the test, improves the test efficiency, saves the collision test space of the rail vehicle, and can guide the improvement research of the collision resistance of the full-size rail vehicle.

The utility model belongs to the technical field of battery testing, and provides a collision testing device and system, and the device comprises a collision part, a supporting part, an elastic part, and an adjusting mechanism. The collision part is used for colliding equipment needing to be subjected to a collision test; the collision part is inserted into the supporting part in a sliding manner; the elastic piece is arranged on the supporting part, located between the collision part and the supporting part and stretches out and draws back in the sliding direction of the collision part relative to the supporting part. The adjusting mechanism is used for adjusting the orientation of the supporting part; the adjusting mechanism comprises a first adjusting mechanism which is used for adjusting the included angle between the supporting part and the horizontal plane so as to adjust the included angle between the sliding direction of the collision part relative to the supporting part and the horizontal plane. The objective of the utility model is to reduce the influence of a vehicle forecabin structure in the process of underpinning collision testing of a vehicle bottom battery device.

The invention relates to a fastening releasing and posture stabilizing structure for an underwater vehicle collision test, and relates to the field of vehicle tests, the fastening releasing and posture stabilizing structure comprises a hoop clamping assembly, one side, close to a carrier, of the hoop clamping assembly is provided with an adsorption assembly, and two sides of the hoop clamping assembly are respectively provided with a posture stabilizing assembly. The posture stabilizing assembly extends from the side close to the hoop clamping assembly to the side away from the hoop clamping assembly. The method has the effect of ensuring that the attitude of the released underwater navigation body is stable and the target is accurately collided.

The utility model discloses an underwater collision test device in the field of hydraulic structures. The underwater collision test device comprises a water tank, and a sliding rail assembly is detachably installed on the water tank through a fixing clamp; the sliding rail assembly is installed on the water tank, the collision assembly is installed on the sliding rail assembly, the collision assembly is partially arranged in the water tank, the driving piece is connected with the collision assembly, a pressure sensor is fixed to the inner wall of the water tank, and the driving piece drives the collision assembly to move and make contact with the pressure sensor; the sliding rail assembly is detachably installed on the water tank through the fixing clamp, the sliding rail assembly is connected with the collision assembly, the collision assembly is separated from the water tank while the sliding rail assembly is disassembled, the water tank is used as an installation body, the device universality and structural characteristics of the concrete water tank are utilized, rapid installation of the whole device is achieved, and the whole device is put into a test; the device is small in occupied area and meets test requirements.

Embodiments of the present application provide a barrier-avoiding method, device, equipment, medium and program for unmanned forklift. The present application relates to the technical field of autonomous barrier-avoiding of unmanned forklift. The method comprises: in response to an obstacle-avoiding instruction, obtaining a plurality of sampling points of the unmanned forklift within the path boundary of a target path; determining a plurality of obstacle-avoiding paths based on the plurality of sampling points; performing collision test on each obstacle-avoiding path and calculating the cost function value of each obstacle-avoiding path passing the collision test; determining a target obstacle-avoiding path according to the cost function values of the plurality of obstacle-avoiding paths passing the collision test; and performing barrier-avoiding control on the unmanned forklift based on the target obstacle-avoiding path. The method is used to achieve the technical effect of precise autonomous barrier-avoiding of the unmanned forklift.