46 results about "Flame" patented technology

The present invention provides a SCMA codebook design method based on the moth-flaming algorithm, according to setting parameters in the SCMA codebook, setting user codewords, and determining optimized parameters; then constructing the SCMA codebook to be optimized and finally optimizing the SCMA codebook The SCMA codebook takes the minimum bit error rate as the criterion, and obtains the optimal parameter value of the parameter to be optimized through the moth-flame algorithm, so that the optimal SCMA codebook is obtained according to the optimal parameter value. The present invention can be applicable to the SCMA codebook design under different channels, under different channels, only need to change the channel parameter of SCMA in the bit error rate function f_BER; With the increase of the number of users, the complexity of the moth-flaming algorithm increases slowly, The implementation is simple; according to the simulation results, under the Gaussian channel and the Rayleigh channel, the bit error rate of the codebook obtained by the method of the present invention is significantly improved compared with other codebooks.

The invention discloses a flame detection method. The flame detection method based on a single frame image is used to perform preliminary frame-by-frame detection of a video. Extract the grayscale image of the flame area respectively, and obtain the frame difference image of the grayscale image of the flame area between adjacent frame images; weight the superimposed image of all frame difference images and the reverse image of all frame difference images and, the flame detection probability map is obtained. If the number of pixels in the flame detection probability map whose pixel values ​​exceed the preset threshold exceeds the preset number, it is determined that the preliminary detection result is correct, otherwise it is a false detection. The invention also discloses a flame detection device. Compared with the prior art, the present invention not only has higher detection accuracy, but also has better real-time performance, and has lower requirements for software and hardware resources.

The invention discloses an interactive control method and system for simulating flames. The system includes flame simulation equipment and fire extinguishing equipment; the flame simulation equipment includes a first induction module, a first control module, a second control module and a simulated flame generation module; the fire extinguishing equipment is provided with a signal transmitting module; the method includes the following steps: the signal transmitting module sends out a first sensing signal, and the first sensing module is used to receive the first sensing signal; the first control module The corresponding relationship between the type and the sensing signal type is to determine whether the first sensing signal received by the first sensing module conforms to the corresponding sensing signal type under the current simulated flame type, and if so, the simulated flame generated under the current simulated flame type is passed through the second control module. Adjust the flame. The above solution realizes the real simulation of the fire extinguishing scene through the signal interaction between the fire extinguisher and the flame simulation equipment, and effectively meets the needs of fire safety training.