3results about How to "Implement data storage" patented technology

The hydropower station perimeter intrusion detection system comprises a radar monitoring module, a video monitoring module, a data processing module, a communication module, a control module, a power supply module, an early warning module, a data storage module and a compatible integration module. The radar monitoring module adopts laser radar equipment, and targets such as intruded foreign personnel in the surrounding environment are obtained by transmitting radar waves to the surrounding environment of the hydropower station and receiving and reflecting the radar waves. The accuracy and reliability of the hydropower station perimeter intrusion detection system are improved by adopting the Leiyu fusion technology and combining various technical means, so that the perimeter safety of the hydropower station is guaranteed. Meanwhile, the system has the advantages of real-time performance and reliability, the system can be compatibly integrated to a hydropower station electronic precaution system platform, new technical means and support are provided for hydropower station safety management, and the system has great significance in improving the safety level and accuracy of a hydropower station perimeter intrusion detection system.

The utility model discloses a remote reclosing control device of miniature circuit breaker with energy metering remote transmission, including casing, display screen, motor, output shaft, motor drive gear, variable speed gear group, output drive gear and circuit board, casing is fixed through bolt connection on the lateral wall of the shell of miniature circuit breaker, and the outer end portion of output shaft passes through the lateral wall of casing and miniature circuit breaker, and after, with the rotating shaft fixed connection of the opening and closing mechanism in the chamber of miniature circuit breaker, the motor drive gear on motor rotating shaft is connected with the output drive gear of output shaft through the meshing transmission of variable speed gear group, be equipped with MCU central processing unit, clock module, AD sampling module, 4G communication module, power module, storage module, motor drive module and display unit on the circuit board, and the power cord of power module is connected with the wiring terminal of miniature circuit breaker, and AD sampling module is connected with miniature circuit breaker through wire, and the working state signal of miniature circuit breaker is gathered.

The invention belongs to the technical field of iron core grounding current monitoring of transformers, and particularly relates to an iron core grounding current recording method based on precise time synchronization. Comprising the following steps: collecting a current signal through an iron core and a clamp grounding current sensor; time deviation caused by RTC is calibrated continuously in the collection process; performing cyclic sampling and calculation on an output signal of the sensor, sending total current and multiple harmonic waves obtained by Fourier calculation to a display end of an upper computer, and starting fault recording when the value of the total current meets a fault judgment threshold value; when it is judged that a fault occurs, an accurate time mark is provided through an accurate time synchronization function, reserved historical data and collected real-time data are spliced into a wave recording graph during the fault period, and the wave recording graph is backed up and transmitted to a display end of an upper computer to be stored and displayed. According to the invention, some fault phenomena which are short in duration and rapid in generation and disappearance can be effectively monitored, and the change trend of iron core and clamp current when faults occur can be effectively monitored.