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94results about How to "Big memory" patented technology

Solar photovoltaic power generation prediction method based on TCN-LSTM

PendingCN110909926AReduce the forecast error valueBig memoryForecastingNeural architecturesData setTerm memory
The invention discloses a solar photovoltaic power generation prediction method based on TCN-LSTM. The solar photovoltaic power generation prediction method comprises the following steps: data preprocessing: processing photovoltaic data of one year into photovoltaic data of four seasons of spring, summer, autumn and winter, removing useless photovoltaic data, arranging and concluding key featuresaffecting photovoltaic power generation in a photovoltaic data set, and carrying out the normalization processing; building and predicting a prediction model: building a hybrid model based on a time convolutional neural network and a long short-term memory network, and training the prediction model by adopting the training set data; inputting the training sample into a TCN-LSTM model; carrying outfeature extraction by a TCN; inputting the time sequence data into a two-layer extended causal convolution, adding the time sequence data with a one-dimensional convolution output result to obtain anoutput result, and inputting the output result into an LSTM model; and performing information abstraction of high-level features on the features of the output result of the TCN by the LSTM model, processing the features into a one-dimensional vector and inputs the one-dimensional vector into a full connection layer of the LSTM model, and directly outputting a photovoltaic power generation power prediction value at the next moment by the full connection layer.
Owner:CHINA JILIANG UNIV

GPRS-based remote LED panel control system

The invention relates to network remote control, in particular to a GPRS-based remote LED panel control system. The GPRS-based remote LED panel control system comprises an upper computer control terminal, a transit server and lower computer LED panels. The upper computer control terminal is in network connection with the lower computer LED panels through the transit server. According to the GPRS-based remote LED panel control system, remote control is achieved through the intranet penetration technology and the transit server, and each LED panel can be controlled by all networked PCs; wired control and wireless remote control are both achieved; the laying cost of communication lines and the communication fault rate are reduced; the stability and timeliness of LED information transmission are enhanced; the LED panels can receive information issued by the upper computer control terminal at any time, so that the working efficiency of the LED panels is greatly improved; the remote transmission data volume of the LED panels is increased, the information is sent through a GPRS DTU, the TCP/IP network protocol is adopted, and the number of networked terminals is not limited; the remote application distance of the LED panels is extended, and the LED panels can be used at any places with GPRS network coverage without distance limitation.
Owner:HUNAN UNIV OF SCI & ENG

Field station data transmission and integration method

InactiveCN104580507AManage and Control Abnormal ConditionsImprove operating statusTransmission systemsTransmissionInternal memoryData acquisition
The invention provides a field station data transmission and integration method. The method comprises the steps that an on-site system and a remote background system are constructed, and the on-site system and the remote background system transmit data to each other through a wireless communication network, wherein the on-site system comprises an on-site data processing module, a storage module, a wireless communication module, a power management module and a clock module; the remote background system sends network commands to the on-site data processing module. According to the method, the on-site data processing module is used for completing storage and transmission, a large internal memory can be expanded, and the file storage mode is changed to a database storage mode; an OBS instrument data protocol is simplified and standardized, commands can be remotely received and sent to control the operation state of an OBS instrument and data acquisition frequency, a sending network is selected preferably, the communication success rate is guaranteed to the largest extent, and data are stored continuously; when the network is restored, messages are automatically forwarded, a standby power supply can be used through switching in time, and normal instrument data acquisition and normal network communication work are guaranteed.
Owner:EAST CHINA NORMAL UNIV

Video-based non-linear on-line expression pre-detection method and device

The invention discloses a video-based non-linear on-line expression pre-detection method and device thereof. The method includes performing preprocessing on video data and extracting feature information of each frame of image; video segments with different lengths are extracted from the training samples, and the nonlinear mapping between the segments and the detection function is constructed. Therepresentation of fragments is based on multi-instance learning, fully mining the effective expression information, and constructing a constraint pair for every two video fragments according to the size of the mapping value to obtain training data; at each time point, the OKMEFD model is updated with all the constraints of the current sample. By minimizing the experience loss and model complexityon the current training data set, the model is optimized with stochastic gradient descent algorithm to obtain the online updating criteria of the model, and the nonlinear expression pre-detection function at each time point is further obtained. The pre-detection method is that the data is read frame by frame to the test sample and the corresponding detection value is output. When the value is greater than the set threshold value, the expression event is considered to be pre-detected. The invention realizes the pre-detection before the end of the expression video. The invention effectively improve the timeliness of expression recognition.
Owner:SOUTHEAST UNIV
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