62results about How to "Accurately locate faults" patented technology

The invention discloses a distributed parallel Skyline inquiring method based on a cloud computing environment, aiming at effectively preventing a node failure from influencing inquiring and processing processes of the distributed parallel Skyline. The technical proposal comprises the steps as follows: firstly, the clouding computing environment which consists of a portal node and N computer nodes is constructed, wherein a task management program and a result recovery program are arranged on the portal node, an inquire processing program and a fault processing program are arranged on the computer nodes; the portal node executes the task management program and transfers the Skyline inquiring request to each computer node; each computer node executes the inquire processing program and implements Skyline inquire processing; each computer node executes the fault processing program, and periodically detects and repairs the fault for the neighbor nodes; the portal node executes the result recovery program, collects a Skyline set of all the computer nodes, gathers the Skyline set and returns the Skyline set to users. By adopting the invention, the influences to the inquire processing process of the distributed parallel Skyline caused by the node failure can be effectively controlled, and high efficiency, reliability and accuracy of the Skyline inquire processing can be guaranteed.

An automatic detection system for faults of a main control assembly and a management control assembly in a launch control system comprises an adaptation device for the main control assembly and the management control assembly, a main control assembly automatic test program set for testing faults of the main control assembly, a management control assembly automatic test program set for testing faults of the management control assembly, and a host computer installed with the automatic test program sets, wherein the adaptation device comprises a testing single-chip microcomputer and an adapter box provided with a hardware resource switching over function. The automatic detection system has the advantages that the problem of low efficiency of conventional manual fault detection is solved; the adaptation device is adopted for providing a hardware resource, and the automatic test program sets for testing the faults of the main control assembly and the management control assembly are developed independently, so that the testing efficiency of the automatic detection system is high, and the faults can be located accurately.

A diagnosis and early warning device of faults of mine explosion-proof dry type transformers comprises a microprocessor unit, a sensor unit, a signal conditioning unit, a data acquisition unit, a data storage unit and a communication unit, wherein all the units adopt voltage and current transformers and temperature, current and pulse current sensors to obtain signals; the signal conditioning unitis used for converting the output signals of the voltage and current transformers and the temperature and current sensors to the signals with voltage within 0-3V and converting the output signals of the pulse current sensors to the signals with voltage within minus 2-2V; the data acquisition unit and the microprocessor unit are used for carrying out data acquisition and processing on the output signals of the signal conditioning unit; the data storage unit is used for realizing real-time storage of the data; and the communication unit supports compatible integrated connection of the device and the monitoring network and is used for centralized data processing, characteristics analysis and resource sharing. The device has overall monitoring parameters and simple structure and can ensure continuity, reliability and safety of mine production.