5 results about "Multi code" patented technology

A colored lighting apparatus with mixed multi-codes triggered by power line edge signals, including a power line edge signal generator for generating address signals and light control signals and loading them onto the power line; multiple LED modules, each including a multi-color LED group and an LED driver that drives the multi-color LED group based on the address signals and light control signals loaded from the power line; multiple LED modules including two or more LED modules, and multiple LED modules having two or more LED driver address codes, with the LED modules randomly mixed and arranged according to the LED driver address codes.

The application discloses a kind of multi-code decoding method and system based on gradient algorithm, wherein the multi-code decoding method involved, comprising: S1. obtaining the image corresponding to multiple bar codes, the image obtained is carried out gray scale and contrast enhancement processing, obtain the gray scale image of multiple bar codes;S2. calculate the gradient of gray scale image in preset direction, obtain gradient graph, calculate the number of non-black pixels of gradient graph, obtain the gradient graph with the maximum number of non-black pixels;S3. the gradient graph is carried out binaryzation processing, the white area obtained is the position of bar code, the white area is expanded to rectangle, obtain bar code area position frame;S4. traverse the pixel in bar code area position frame, obtain bar code, from the middle part of each bar code start sampling, obtain multiple sampling lines in different directions of each bar code, and calculate the gradient of each sampling line, obtain the sampling line with the maximum gradient;S5. the bar code pixel in the sampling line with the maximum gradient is decoded, and the decoding result is obtained.

The invention relates to a high-precision angle measurement method of a multi-code-channel vernier code and a Hall chip, and belongs to the technical field of angle measurement. According to the method, a multi-code-channel magnetic grid disc comprising a main code channel and a vernier code channel of which magnetic pole pairs are prime numbers is adopted, magnetic fields of the code channels are detected through corresponding Hall sensors, and orthogonal sine and cosine signals are output. After the signals are subjected to conditioning and analog-to-digital conversion, a coarse angle and a period index are calculated by utilizing the main code channel signals, a fine angle is calculated by combining the phase difference of the main code channel signals and the vernier code channel signals, and finally a high-precision absolute angle value is obtained through combination. And an index code channel is optionally added to realize zero calibration and error elimination, and differential amplification, electromagnetic shielding and dynamic compensation technologies are adopted to enhance the anti-interference capability and the measurement stability. The device has the advantages of high resolution, high environmental adaptability and compact structure, and is suitable for high-precision angle measurement scenes such as industrial automation and robots.

The application provides an IGBT module production tracing method based on multi-code level binding, a multi-code level coding system covering work order level, batch level, raw material level, material box level, tray level, each process level, semi-finished product level, module level and packaging level is established, a code scanning inspection unit linked with a database is arranged at each process section node to realize automatic code scanning and real-time binding, a Data Matrix code engraved by a fiber laser is selected according to a high-temperature special environment such as welding, and an intelligent binding algorithm is used to establish a full-chain binding relationship between a single module and various raw materials, multiple modules and a tray, multiple trays and a material box and process parameters. Based on the database, the flow information and key process parameters of the IGBT module from the raw material to the packaging into the warehouse of the whole process can be completely stored and traced, the problem of accurate positioning of failure is solved, and the requirement of the whole cycle tracing for the high-reliability application scene is met.

The application relates to a multi-code general decoding method, system, device and medium based on a memory-computing integrated device, which comprises the following steps: representing the common features of different types of decoding tasks in a probabilistic graph model; obtaining the initial log-likelihood ratio of each variable node in the probabilistic graph model corresponding to different types of to-be-decoded data; constructing a general memory-computing integrated device array containing different types of decoding arrays, and respectively configuring the blocking state of each cross node in the corresponding decoding array according to the code word features of different types of to-be-decoded data; inputting the initial log-likelihood ratio of different types of to-be-decoded data into the corresponding row of the general memory-computing integrated device array, performing iterative calculation through the corresponding column of the general memory-computing integrated device array based on the message passing process between the variable nodes and the check nodes, and outputting the decoding result of different types of to-be-decoded data when the corresponding column output meets the termination condition. The application can be widely applied in the field of decoding technology.