3results about How to "Valid trigger" patented technology

The invention relates to the technical field of thermal power generating unit state monitoring and performance prediction, and discloses a thermal power generating unit primary frequency modulation power response performance prediction method and system, and the method comprises the steps: monitoring a unit speed regulation execution mechanism physical position feedback signal, and calculating the baseline fluctuation characteristics of the unit speed regulation execution mechanism in a verification time period; judging whether a preset working condition stability condition is met or not; if yes, a time-varying virtual disturbance signal is injected into the speed regulation controller, response is monitored, and the current value of the health indicator is determined based on the corresponding relation between the disturbance signal and response change; repeating the steps according to a preset time period to obtain time sequence data of the health indicator; and adopting a time sequence prediction model to predict a future value of the health indicator based on the data so as to generate prediction information of the primary frequency modulation power response performance of the unit. According to the method, virtual disturbance is actively injected, so that the physical health indicator which is high in signal-to-noise ratio and can be used for reliable prediction can be obtained, and the accuracy and reliability of performance prediction are improved.

This invention relates to the field of security monitoring technology and discloses an engineering security monitoring device, including a cylindrical shell with an air inlet and an air outlet at both ends. An electrical component is placed inside the air outlet. A heat-conducting plate is located on the side of the electrical component near the center of the cylindrical shell, and the heat-conducting plate is thermally connected to the heat-generating part of the electrical component. A heat-conducting strip is provided on the side of the heat-conducting plate. The device also includes an active heat dissipation mechanism and an air inlet adjustment mechanism. The active heat dissipation mechanism includes a main shaft rotatably connected to the side of the heat-conducting plate and heat dissipation blades located at the end of the main shaft. This invention cleverly overcomes the static friction of the blades through an energy storage and release start-up design, ensuring reliable triggering of forced heat dissipation at high temperatures. It has a simple structure and is easy to install, making it particularly suitable for outdoor scenarios without power supply or where wiring is difficult.

This invention discloses a neck restraint device for patients with cervical spine injuries, specifically relating to the field of medical device technology. It includes a limiting member and a second limiting plate that form a neck-accommodating space by closing and enclosing the neck. The upper sides of the second limiting plate are provided with cheek rotation restraint modules, including a limiting plate, a movable plate movably disposed inside the limiting plate, and a second sensing unit. An arc-shaped resistance plate is fixed to the side of the movable plate facing the cheek, used to gather soft tissue to trigger the second sensing unit when the cheek deflects. The bottom of the second limiting plate is provided with a body rotation early warning module, including a shaped flexible plate and a third sensing unit installed inside it. The shaped flexible plate has straps at both ends that are fixed to the patient's shoulders, used to trigger the third sensing unit when the body deforms during turning. This invention can physically block conscious head turning and utilize arc-shaped resistance to trigger sensing, while simultaneously providing early warning through body turning prediction, effectively reducing the risk of secondary cervical spine injury.