Abstract: A coding system comprises: a neuron block code library storing a program code of each neuron block and a corresponding description file; a programming element library storing a program code of each programming element and a corresponding description file; a graphical management module for extracting the description files from at least one of the neuron block code library or the programming element library, and generating corresponding graphics, wherein the graphics conform to an industrial standard; a graphical modeling interface for presenting the graphics generated by the graphical management module, and receiving an artificial intelligence graphical model established by a user on the basis of the graphics; and a code converter for converting the AI graphical model into a corresponding coding program. The system enables a user who is accustomed to industrial coding such as a PLC to realize the coding of an AI application without barriers.

Abstract: A surge protection circuit protection circuit includes a first series-connected line formed by at least two TVSs connected in series. One end of the line is connected to a positive terminal, and another is connected to a negative terminal. A second series-connected line is formed by at least one TSS. One end is connected between the at least two TVSs in the first series-connected line, and another end is grounded. The first line is connected in parallel to a protected circuit. When a differential-mode surge voltage appears at the ends of the first line, a voltage of a backend connection circuit is clamped to a first value. When a common-mode surge voltage appears at the two ends of the first line to the ground end, respectively, voltages to ground of the positive terminal and the negative terminal are reduced to a second value.

Abstract: A surge protection circuit protection circuit includes a first series-connected line formed by at least two TVSs connected in series. One end of the line is connected to a positive terminal, and another is connected to a negative terminal. A second series-connected line is formed by at least one TSS. One end is connected between the at least two TVSs in the first series-connected line, and another end is grounded. The first line is connected in parallel to a protected circuit. When a differential-mode surge voltage appears at the ends of the first line, a voltage of a backend connection circuit is clamped to a first value. When a common-mode surge voltage appears at the two ends of the first line to the ground end, respectively, voltages to ground of the positive terminal and the negative terminal are reduced to a second value.

Abstract: At least one embodiment of the present invention provides a method for detecting voltage disturbance. In at least one embodiment the method includes storing the digitized point values of a voltage reference waveform; detecting actual voltage values, and converting the actual voltage values by digitization into point values of the actual voltage which are in one-to-one correspondence with the point values of the reference waveform; comparing the point values of the actual voltage with the corresponding point values of the reference waveform; judging that a voltage disturbance occurs if, for N successive points, the differences between the point values of the actual voltage and the corresponding point values of the reference waveform are all greater than a predetermined disturbance threshold, wherein N is an integer greater than 0. A technical solution of the present invention improves the response speed of the detection, and shortens the response time.

Abstract: A power monitoring device is disclosed. In at least one embodiment, the power monitoring device includes a power parameter measurement unit for calculating the measurement results of basic power parameters according to acquired digital signals of a voltage and/or a current; and a power quality analysis unit including a field programmable gate array, for obtaining power quality analysis results by executing a wavelet transform algorithm, a fast Fourier transform algorithm, an artificial neural net algorithm or a fuzzy logic algorithm in a parallel mode according to the acquired digital signals of voltage and/or current to perform analysis of stationary and transient power quality disturbances. Since the power monitoring device of at least one embodiment of the present invention employs a field programmable gate array, it can perform power quality analysis, power parameter measurements and other peripheral functions with relatively good performance.

Abstract: At least one embodiment of the present invention provides a method for detecting voltage disturbance. In at least one embodiment the method includes storing the digitized point values of a voltage reference waveform; detecting actual voltage values, and converting the actual voltage values by digitization into point values of the actual voltage which are in one-to-one correspondence with the point values of the reference waveform; comparing the point values of the actual voltage with the corresponding point values of the reference waveform; judging that a voltage disturbance occurs if, for N successive points, the differences between the point values of the actual voltage and the corresponding point values of the reference waveform are all greater than a predetermined disturbance threshold, wherein N is an integer greater than 0. A technical solution of at least one embodiment of the present invention improves the response speed of the detection, and shortens the response time.