4results about How to "Quick and accurate response" patented technology

This application discloses a fault determination method, apparatus, electronic device, and power supply system for a power supply system. The method includes: when a first power supply signal provided by the main power supply is detected to be lower than a preset reference signal, recording a current first timestamp and sending a first control signal to a backup power supply, wherein the first control signal is used to control the backup power supply to switch to a hot standby state; when the backup power supply is detected to switch to a hot standby state, recording a current second timestamp; when a second power supply signal provided by the backup power supply is detected to reach the reference signal, recording a current third timestamp; and determining the fault condition of the power supply system during the backup power switching process based on the recording status and timing relationship of the first, second, and third timestamps, thereby achieving accurate identification of the fault condition during the backup power switching process.

This invention discloses an adjustable clearance reciprocating compressor and its control method, belonging to the field of compressor technology. The reciprocating compressor includes a cylinder body with a piston chamber, a main piston in the piston chamber, and an intermediate piston in the piston chamber. The intermediate piston and the main piston form a compression chamber. It also includes an adjustment mechanism, which includes a partition plate and a metal diaphragm. The intermediate piston and the partition plate form a first chamber, the partition plate and the metal diaphragm form a second chamber, and the metal diaphragm and an end plate form a third chamber. The partition plate has a channel connecting the first and second chambers, and the channel is equipped with the control mechanism. The third chamber is equipped with an oil supply system. The control method is based on the reciprocating compressor. This solution not only enables clearance adjustment of the reciprocating compressor but also features reliable compressor sealing performance and optimized stress on the metal diaphragm to extend its service life.

This invention belongs to the technical field of silicon-based piezoresistive high-pressure sensors, and specifically relates to a dual-island beam membrane high-pressure sensor chip and its fabrication method. The chip features a dual-island beam on a sensitive membrane; a set of piezoresistive strips are arranged on the upper surface of the dual-island beams, positioned along two center lines of the chip body; the dual-island beams include an island and an island, with their ends connected to the device layer, insulating layer, and support layer via a beam body; the upper surfaces of the islands are flush with the upper surface of the beam body; this significantly enhances the lateral and longitudinal stress difference in the stress concentration area, making the stress concentration effect more pronounced, improving the sensor's sensitivity, and ensuring reliable measurement results under various operating conditions.

The invention is applicable to the technical field of intelligent terminals, and provides a webpage data tamper-proofing method and device, terminal equipment and a storage medium, the method comprises the following steps: monitoring a change event of a webpage document object model based on an internal monitoring mechanism and an external monitoring mechanism, the change event acts on a key data node in an isolation protection area in the webpage document object model; when the change event is monitored, whether unauthorized tampering occurs in the isolation protection area or not is judged based on an actual monitoring mechanism of the monitored change event, and the actual monitoring mechanism is any one of the internal monitoring mechanism and the external monitoring mechanism; and if unauthorized tampering occurs, executing corresponding tampering prevention processing according to a preset processing strategy corresponding to the actual monitoring mechanism. According to the webpage data tamper-proof protection method and device, real-time and efficient tamper-proof protection on the webpage data can be achieved in a pure front-end environment on the premise of not depending on rear-end intervention, and the webpage data safety is improved.