2results about How to "Good real-time detection" patented technology

This invention discloses a collision detection method and system based on hybrid bounding boxes and lung anatomical features. The method includes: constructing bounding boxes for the lung, lung lobes, and lung segments based on a three-dimensional finite element model of the lung; determining intersecting lung segment bounding boxes using a breadth-first traversal algorithm; determining intersecting lung lobule bounding boxes using a depth-first traversal algorithm; and accurately detecting the collision position of a surgical instrument proxy ball using fine intersection detection to obtain the collision detection result. The depth-first traversal order is calculated based on the predicted positions of the lung segment bounding boxes and the surgical instrument proxy ball. This invention avoids the problems of computational redundancy and poor real-time performance in collision detection.

The utility model provides an online test system for a flameout detection circuit of a gas stove, and belongs to the technical field of gas stoves. The problem that detection can only be carried out when the gas stove is closed in the prior art is solved. The online test system for the flameout detection circuit of the gas stove comprises a power supply voltage VCC, a high-voltage ignition induction module, a controller, an ion high-voltage generation module, a switch tube U31, a voltage comparator U1 and a signal processing module connected with the high-voltage ignition induction module, the switch tube U31 is connected with the controller, the power supply voltage VCC is connected with the ion high-voltage generation module through the switch tube U31, and the voltage comparator U1 is connected with the signal processing module through the voltage comparator U1. The voltage comparator U1 is connected with the signal processing module, the voltage comparator U1 is connected with the controller, and the controller is used for intermittently controlling the switching tube U31 to be switched off in a flame state so as to judge whether the gas stove flameout detection circuit breaks down or not through a signal output by the voltage comparator U1. According to the utility model, the safety detection of the flameout detection circuit during the operation of the gas stove is realized.