6results about How to "Reliable record" patented technology

The invention discloses a magnetoelectric encoder angle value jump point suppression method based on the SWO principle and a related device, and relates to the field of magnetoelectric encoders. According to the method, the multi-antipode angle values are divided into three intervals, the window width is increased, the front-layer window, the current window and the lower-layer window are set, whether the difference value between every two adjacent angle values of the windows of each layer exceeds the set threshold value or not is judged, if yes, it is proved that the jump point exists, and the jump point can be efficiently locked in the mode; according to the method, the SWO algorithm is further combined, the purpose of efficiently suppressing jump points is achieved, meanwhile, the resolution ratio and the precision of the magnetoelectric encoder are remarkably improved, and the encoder can more accurately record and interpret signals and can provide more reliable and accurate data through the improvement.

The invention relates to an SMT-based production management system and method and computer equipment. The system comprises an identifier management platform which is used for generating a standard identifier data structure after analyzing an external management standard node, and carrying out identifier information distribution with a supplier management module, a material management module, a product management module and a quality inspection management module according to the standard identifier data structure, and the distributed identification information is recorded on the industrial data storage module, and a local identification database is established. And the industrial data storage module is used for deploying the intelligent contract on the system and calling the intelligent contract of the SMT industry production application module to store the distributed identification information record. And the contract development module is used for generating an intelligent development contract according to a preset contract mechanism, and deploying the intelligent contract on the industrial data storage module according to the intelligent development contract. By adopting the method, the efficiency and efficiency of production management can be improved.

The invention provides an engine motorcycle hour redundancy recording device and method, the engine motorcycle hour redundancy recording device comprises a control chip, a main memory, a timing chip, a controller power supply module and a standby battery, and the control chip sends a read-write instruction to the main memory through an SPI bus and sends the read-write instruction to a storage unit of the timing chip through an I2C bus. According to the engine motorcycle hour redundancy recording device and recording method, the NVRAM in the timing chip is used as the standby memory to synchronously record the motorcycle hours, the hardware backup function of the motorcycle hours is achieved, when the working voltage of the main memory is unstable, the motorcycle hours of the standby memory are used as the engine motorcycle hours, and the redundancy of the engine motorcycle hours is recorded. The engine hour recording error is avoided, and the reliable recording of the engine hour is realized.

This invention relates to a data storage method for the black box of an electric vehicle motor controller and the motor controller itself. The method includes: establishing a storage structure comprising two sets of memories; setting the data storage types of the two sets of memories to be mutually exclusive; setting one set of memories as real-time memory and the other as compressed memory; the real-time memory storing operational data in real time using a continuously cyclically overwritten storage method; compressing and transferring data before it is overwritten to the compressed memory; periodically swapping the data storage types of the two sets of memories, after which the original real-time memory is set as compressed memory, and vice versa; during each memory swap, all data previously stored in the compressed memory is first transferred to the real-time memory before the data storage types are swapped. This invention ensures reliable recording of operational data at critical moments and increases the amount of data recorded.

This invention relates to the field of computer vision technology, and in particular to a method for identifying surface defects in wind turbine metal parts based on image processing. The method acquires grayscale images of the wind turbine metal parts at each exposure time, designating any grayscale image as the target image. For any pixel in the target image, an initial fusion weight is obtained based on the difference between the local grayscale distribution of that pixel and the grayscale distribution of pixels in the target image. The initial fusion weight is then adjusted based on the local detail features and the degree of local noise interference of that pixel to obtain the final fusion weight. The final fusion weight and irradiance of each pixel in each grayscale image are obtained, and the fused irradiance corresponding to each pixel in the target image is obtained. Finally, the final image of the wind turbine metal parts is obtained using the fused irradiance of each pixel in the target image, improving the accuracy of defect identification using the final image.

The invention discloses an electric power tunnel monitoring system and a monitoring data secure transmission method, and relates to the technical field of electric power tunnel monitoring, the system comprises a remote monitoring platform, and a plurality of access gateways and tunnel monitoring equipment arranged in an electric power tunnel; the plurality of tunnel monitoring devices are electrically connected with the plurality of access gateways in a one-to-one correspondence manner, and the plurality of access gateways communicate with the remote monitoring platform; the tunnel monitoring equipment is used for monitoring the environment information and the cable state information of the power tunnel in real time and storing the monitoring information by adopting a local nonvolatile FIFO (First In First Out) storage mechanism; the access gateway is used for carrying out data transmission by adopting a user-defined DMA (Direct Memory Access) multi-frame transmission protocol and transmitting the data stored in the tunnel monitoring equipment to the remote monitoring platform; and the remote monitoring platform is used for receiving the monitoring data of the tunnel monitoring equipment and visually displaying the monitoring data. Through non-volatile FIFO storage, power supply redundancy and a reliable transmission protocol, the security of storage and transmission of key node data of power tunnel monitoring is guaranteed.