5results about How to "Reliable implementation" patented technology

The application discloses a crane vibration monitoring method, an intelligent control method and application, and is characterized in that when a crane starts a work starting signal, the work parameters of the crane are recorded, vibration data of each equipment area of the crane and position data of the crane are also recorded correspondingly, work monitoring data, vibration monitoring data and position monitoring data are correspondingly generated, the vibration monitoring data of the crane is judged, when the vibration monitoring data points to an exception, the work monitoring data and the position monitoring data can be output synchronously to assist maintenance personnel in fault judgment and fault reproduction, the application further counts the exception records to generate exception count information, judges the correlation of the exception count information, and outputs exception record prediction information to assist the maintenance personnel in troubleshooting and judgment during routine maintenance, so that crane faults can be prevented in advance and targeted maintenance can be performed.

The application discloses a kind of based on feature projection and self-adapting search ring's knotter special-shaped part processing method, it is characterized in that, including the following steps: S1 obtains the three-dimensional model data of knotter special-shaped part, the main tensile direction of model is calculated using principal component analysis method, and combined with the tool positioning strategy based on datum plane+process hole, establish composite machining coordinate system;S2 traverses model topological surface, according to the angle between the normal of each topological surface and the main tensile direction, wall thickness and the relative attitude with tool positioning datum plane, screen out the set of faces to be projected;S3 with the geometric center of part as origin, the main tensile direction is normal to construct self-adapting projection plane, the set of projected faces is projected to the plane to obtain two-dimensional projection edge set, and two-way search ring is carried out using maximum corner priority strategy, generates the two-dimensional closed ring representing different features.

This invention discloses a narrowband multi-hop ad hoc network incremental location information transmission system, including terminals and field devices. Multiple terminals are arranged such that the distance between any two adjacent terminals is less than or equal to the terminal's radiation radius. These terminals form an ad hoc network. The field devices are power acquisition terminals that collect remote signaling data, telemetry data, and remote control data. Data from the field devices within the specified area during operation is transmitted through this ad hoc network. The ad hoc network comprises initial networking and periodic networking. This system uses incremental location information as the data transmission channel, significantly shortening location routing transmission time compared to direct transmission, reducing service collisions, and maximizing the connectivity of the ad hoc network. It provides a valuable green lifeline in emergency environments.

The invention belongs to the technical field of power transmission line point cloud registration, and particularly relates to a power transmission line point cloud registration method and device and a computer readable storage medium. The method comprises the following steps: firstly, acquiring point cloud data sets of the same power transmission line, namely a source point cloud set and a target point cloud set, and extracting power lines and pole nodes in the source point cloud set and the target point cloud set; then, an optimal rotation matrix for registration is solved by utilizing the extracted power line, and an optimal translation vector for registration is solved by utilizing the extracted pole nodes; and finally, performing power transmission line point cloud registration by using the optimal rotation matrix and the optimal translation vector. According to the whole scheme, only the power line and tower nodes in the power transmission line point cloud need to be extracted, then the rotation matrix and the translation vector are calculated based on the extraction result, the calculation amount of the whole scheme is not large, but high precision can still be guaranteed, and point cloud registration in the complex scene of the power transmission line is achieved.

The invention discloses a double-rate model-free control method driven by a high-frequency motor. The core principle of the double-rate model-free control method is that a calculation-intensive task is separated from high-rate control execution; specifically, complex online model identification and time delay compensation are executed through slow-rate interruption, so that an accurate data driving model without physical parameters is obtained; meanwhile, a control sequence of a high-rate control period is generated at a time in slow-rate interruption by using an interpolation time translation prediction method; then, the high-rate interruption is only responsible for executing the pre-calculated control sequences one by one in sequence; due to the fact that correction based on the latest identification model is achieved on each high-speed control point, and the calculation burden of high-speed interruption is extremely low, the method fundamentally solves the problems of calculation real-time constraint and model parameter dependence in high-frequency control, and therefore high-robustness quasi cycle-by-cycle control of the high-frequency motor driving system is achieved.