5results about How to "Improve testing flexibility" patented technology

The invention discloses a board card testing tool circuit board, and relates to the technical field of board card testing, and the board card testing tool circuit board comprises a first processor circuit, a second processor circuit, an FPGA circuit, and a testing circuit. The first processor circuit is respectively connected with the second processor circuit and the FPGA circuit, the test circuit is connected with the FPGA circuit, and the tested board card is respectively connected with the test circuit and the second processor; the first processor circuit is used for responding to the obtained upper computer instruction, sending a first test instruction to the second processor circuit and sending a second test instruction to the FPGA circuit; the second processor circuit is used for responding to the obtained first test instruction and executing a direct-current voltage acquisition task aiming at the tested board card; the FPGA circuit is used for receiving the test instruction sent by the first processor and driving the test circuit to execute a test task for the tested board card; and the test circuit is used for performing interface detection, output waveform detection, nozzle data line detection and LVDS data path detection on the tested board card.

The utility model discloses a kind of stylus test mechanism, including front and rear movement module, angle swing module and fixed base, the front and rear movement module and angle swing module connection, the front and rear movement module includes front and rear movement drive mechanism, gear and rack, the front and rear movement drive mechanism is connected with gear, drive gear rotation, the gear is engaged with rack, the rack is fixedly connected with angle swing module, the angle swing module is fixedly connected with fixed base, the fixed base is equipped with the fixture for clamping stylus. The utility model is through the structure design of pertinence, effectively solved the core pain point that traditional stylus test device can only be tested vertically, angle single, test scene is limited, in test flexibility, precision reliability and test efficiency three big dimensions realization significant promotion.

The utility model provides a kind of high pressure load resistance shelf and load box.High pressure load resistance shelf includes resistance fixing device and the resistance module installed on resistance fixing device.Resistance module includes at least two groups of resistance branch and at least three groups of output terminal.At least two groups of resistance branch and at least three groups of output terminal are electrically connected, and at least two groups of resistance branch include multiple parallelly connected resistances.At least two groups of resistance branch are connected in series / parallel, to realize multi-grade resistance value output.Compared with prior art, the utility model can obtain multi-grade resistance value by the series connection or parallel connection combination between different resistance branch, and the output terminal outputs different resistance value, meets the test demand of high voltage power supply under different load conditions, and provides more comprehensive test result.

This invention discloses a simulation testing method and system for high-risk scenarios of autonomous driving based on digital twins. The method includes: constructing a three-dimensional continuous traffic environment in a digital twin space based on a real road network topology and multi-source accident data; constructing an accident risk representation object based on the completeness of the multi-source accident data; generating high-risk test scenarios based on the types of accident risk representation objects; converting the high-risk test scenarios into test data corresponding to each functional module in the autonomous driving system, and injecting them into the corresponding functional modules; and outputting high-risk scenario test evaluation results based on the response results of the autonomous driving system. Because this invention constructs a continuous simulation environment by fusing real road network and accident data, and forms accident trigger chains or accident scenario fragments for complete and incomplete accident data respectively, it can comprehensively and accurately recreate various high-risk scenarios, effectively improving the coverage and evaluation accuracy of simulation tests of autonomous driving systems in complex high-risk scenarios.

The utility model relates to the technical field of test jigs, and discloses a tensile shearing aluminum plate test jig with an adjustable tensile range, which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a support frame, the inside of the support frame is fixedly connected with a motor, the output end of the motor is fixedly provided with a gear, and the output end of the gear is fixedly connected with the support frame. A gear is arranged in the supporting frame, a rack is connected to the tooth end of the gear in a meshed mode, an L-shaped plate is fixedly connected to the interior of the supporting frame, the outer wall of the rack is slidably connected to the outer wall of the L-shaped plate, a supporting block is fixedly connected to the outer wall of the rack, a limiting block is fixedly connected to the interior of the supporting frame, and the interior of the supporting block is slidably connected to the outer wall of the limiting block. According to the aluminum plate tensile testing device, the first hydraulic machine drives the pressing plate to clamp and fix an aluminum plate, then the motor drives the gear to rotate so as to drive the rack to slide in the L-shaped plate, and the rack drives the object placing block to move through the supporting block, so that the effect of carrying out tensile testing on aluminum plates with different sizes is achieved, and the testing flexibility is further enhanced.