3results about How to "Large data storage capacity" patented technology

This application discloses a method and system for power grid topology analysis, including the following steps: establishing and storing the relationships between power collection points and gateway tables, gateway tables and devices, and devices in a first database; acquiring real-time power collection information and storing it in a second database according to time; a topology analysis module retrieving the relationships in the first database to construct a topology graph; selecting a device, the first database retrieving the associated devices of that device, the device itself, and the gateway tables corresponding to the associated devices, and outputting this information to the topology analysis module, while outputting the power collection point set information to the second database; the second database matching a set of real-time power collection information containing the power collection point set, and outputting this information to the topology analysis module; and the topology analysis module receiving the real-time power collection information set, analyzing and processing it, and displaying the results. The beneficial effects of this application are: significantly improving the efficiency of storing, querying, and analyzing massive amounts of power grid power data.

The utility model belongs to the technical field of structural health monitoring, and particularly relates to a distributed multi-parameter structural health monitoring system, which comprises a sensor network sensing module, a differential charge amplifier module, a data processing, analyzing and storing module and an early warning module, the sensor network sensing module is connected with the differential charge amplifier module, the differential charge amplifier module is connected with the data processing, analysis and storage module, the data processing, analysis and storage module is connected with the early warning module, and the sensor network sensing module collects multi-parameter data in real time. The differential charge amplifier module is used for conditioning and calibrating an output signal of the sensor network module; the data processing, analysis and storage module processes, classifies and stores the signals, and the early warning module triggers early warning. The system can realize comprehensive, real-time and accurate structural health monitoring for various structures in different industries, such as composite material structures of aircrafts, high-speed rail tracks and bridges, coal mine facilities, mechanical parts, automobile key parts and the like.

This utility model relates to a hard disk video recorder, comprising: a chassis assembly including a base and a cover; the base having a first mounting slot and a second mounting slot, the openings of the first and second mounting slots facing the same side; the cover detachably fitting onto the opening of the first mounting slot; a control component disposed within the first mounting slot; a fan assembly disposed on the side of the cover away from the base and electrically connected to the control component; and a hard disk mounting enclosure detachably disposed within the second mounting slot. The fan assembly drives external airflow toward the cover and diffuses outward along the cover, dissipating heat on the side of the cover and the hard disk mounting enclosure near the opening of the second mounting slot. It also dissipates heat from the control component through the cover and from the hard disk through the hard disk mounting enclosure, ensuring adequate heat dissipation while maintaining the hard disk video recorder's airtight and dustproof design. When it is necessary to disassemble or replace the hard disk, simply remove the hard disk mounting enclosure from the second mounting slot; the operation is simple and convenient.