4results about How to "Simplify testing" patented technology

The utility model relates to a touch screen test box for testing a sensor, which comprises a top cover, a touch display screen, a master control PCB (Printed Circuit Board) and a bottom box, the master control PCB comprises a power interface used for supplying power to and charging the touch screen test box, a USB interface used for communicating with an external PC host, a DUT interface used for being in butt joint with the DUT test module, a touch display screen interface used for being electrically connected with the touch display screen, a master control chip unit used for core master control, and a buzzing alarm unit used for sound prompt. The power supply control unit is used for supplying power. According to the utility model, an independent design is adopted, functional operation, a communication interface and a power supply module are integrated into an integral test box system, the integral size can be held by a single hand, the test box is convenient to carry, and a rechargeable lithium battery is integrated, so that a required working power supply can be provided for the touch screen test box and the DUT test module; and off-line test work is realized.

The application belongs to the technical field of circuit breaker testing, and particularly relates to a circuit breaker mechanical property testing system and method based on a star flash SLB, which comprises a communication-connected handheld terminal master module, a three-phase property testing terminal slave module, a dynamic property testing terminal slave module and a control terminal slave module, wherein the communication connection is specifically wireless communication connection through a star flash SLB network complying with the star flash wireless communication system standard; the handheld terminal master module is a management node of the testing network, is used for distributing a time synchronization reference, scheduling network resources and uniformly distributing testing instructions; the three-phase property testing terminal slave module, the dynamic property testing terminal slave module and the control terminal slave module are terminal nodes of the testing network, are used for receiving the instructions of the handheld terminal master module, synchronously executing data collection or control operation based on a unified time reference, and returning result data to the handheld terminal master module. The problems of complex wiring, low efficiency and insufficient synchronization accuracy in traditional testing are solved.

The invention relates to a power assembly exciting force identification method and device. The method comprises the steps of obtaining system dynamic stiffness of a power assembly based on multiple hammering modal tests of the power assembly arranged on a fixed rack, obtaining operation centroid acceleration of the power assembly under the steady-state operation condition of the power assembly, and identifying operation excitation force corresponding to the power assembly according to the system dynamic stiffness and the operation centroid acceleration; therefore, based on a fixed test platform (fixed rack) and a modal test technology, the operation excitation force of the power assembly can be identified, an inertia coefficient of the power assembly, parameters of an elastic element and parameters of a damping element do not need to be known, and a supporting counter-supporting force corresponding to the power assembly does not need to be known either, so that the test work is greatly simplified, the test time is shortened, and the test efficiency is improved. The test efficiency is improved.

The invention discloses a safety redundancy architecture of an automatic driving vehicle, which comprises a task layer and a safety layer, the task layer and the safety layer respectively receive input and output through the safety layer, the task layer and the safety layer can ensure the safety of the automatic driving vehicle and simultaneously realize required tasks, and the safety and the reliability of the automatic driving vehicle are improved; functions are limited in the security layer through an algorithm instead of limiting the redundant architecture, constraints are reduced along with extension of the security algorithm, deterministic guarantee for false alarms is kept, dependence on obstacle attributes is eliminated, the part can be integrated into the redundant architecture, hardware is not added, and the cost is low; the security layer simplifies the task layer test work and cost, unlike expensive task layer redundancy, it can secure a single task layer and protect the task layer through a highly redundant security layer running on a low cost embedded platform.