7 results about "Differential logic" patented technology

The invention relates to the technical field of material detection, and discloses a semiconductor chip defect online detection system based on optical physical characteristics, which comprises a coherent light projection module, a reference light projection module, a displacement driving feedback unit, a discrete photoelectric detection array, a material support body and a logic processing unit, the displacement driving feedback unit acquires a rotating speed pulse signal, the logic processing unit calculates a laser sampling frequency and adjusts a pulse triggering time sequence, so that the axial displacement of the strip to be measured is constantly within a preset resolution range, the coherent light projection module and the reference light projection module project light beams at different angles, and a differential optical path is constructed; the discrete photoelectric detection array collects composite optical signals, the logic processing unit counteracts background phase noise by means of signal differential logic and extracts phase features of a speckle pattern to determine defect space coordinates, mechanical interference is stripped at a sensing source by means of a physical hedging mechanism, and optical dynamic ambiguity under the high-speed working condition is effectively eliminated.

The application provides a compiling method and device of a programmable logic control system and electronic equipment, wherein the method comprises the following steps: determining configuration setting information, communication data content format information and IO variable logic variable management information of a target programmable logic control system; determining program organization unit source files supporting the target programmable logic control system, and forming program organization unit source files of corresponding target versions; and generating a download file of the target programmable logic control system based on all program organization unit source files of the target versions, so as to control the target programmable logic control system to run. Through the mapping of logic variables and IO variables, the component modeling and management method of the logic program set is established, the componentized splicing type logic adaptation and differential logic incremental content compilation for different wind power equipment configuration scenes are realized, the artificial burden is reduced, and the compiling efficiency is improved.

The present application relates to the technical field of general control or regulation system, and discloses a kind of intelligent regulation and control method of smoke pile based on stereoscopic shelf microenvironment model, comprising: running an average value control loop to maintain overall stability, while running an equalization control loop, the equalization control loop triggers the direction switching of air flow circulation executor by monitoring the gradient accumulation amount between characteristic zones, and triggers the direction switching of air flow circulation executor based on this; a predictive suppression step is run in parallel, the predictive suppression step actively reduces the output power of temperature and humidity executor when monitoring the instantaneous gradient and its gradient change rate simultaneously exceeds the respective preset threshold, the present application constructs a double-scale control architecture, realizes process equalization on long period using integral logic, while avoiding quality damage risk on instantaneous scale using differential logic, realizes the orthogonal decoupling of equalization and safety.

The application discloses a multi-terminal power transmission line differential protection system and method, the system is under a master-slave channel topology, two hosts exist in the system, and channels are connected between the hosts and slaves; when the channels between the hosts and slaves are normal, the two hosts both perform differential logic operation; the differential protection device executes a tripping outlet only when there are tripping signals of the two hosts, so that the reliability of multi-terminal differential calculation is improved; when any channel of the host and the slave is faulty, the multi-terminal differential protection function is ensured not to be exited through a redundant channel design. The application effectively improves the reliability of multi-terminal differential protection operation without sacrificing the speediness and flexibility of the multi-terminal line differential protection, and is easy to implement.

The invention discloses a logic switching method of a programmable controller, electronic equipment and a storage medium, and relates to the technical field of programmable controllers, and the logic switching method of the programmable controller applied to the programmable controller comprises the following steps: in a state of executing original logic, switching the original logic into a logic state; a differential jump patch and a differential logic patch are downloaded from the upper computer to the nonvolatile memory, the differential logic patch comprises a differential logic block between the update logic and the original logic and a jump instruction for jumping back to the original logic, and the differential jump patch comprises a jump instruction for controlling switching from the original logic to the differential logic block; downloading the differential logic patch to a running memory address; when the task is in an idle state, downloading the differential jump patch to a running memory address; and executing updating logic based on the differential jump patch and the differential logic patch on the running memory address. According to the technical scheme, the technical problem that the scene adaptability of a traditional programmable controller shutdown downloading scheme is poor is solved.

This application provides a short-circuit identification method for water pump frequency converters based on the IGBT body diode voltage drop slope, applied to the short-circuit protection system of a water pump frequency converter controller. The method includes: real-time capture of the collector-emitter forward voltage drop signal generated by the lower arm insulated gate bipolar transistor during the inductive load freewheeling phase; continuous discrete voltage sampling at a preset sampling frequency during the effective freewheeling period; obtaining the instantaneous voltage drop change rate between adjacent sampling points through digital differential logic; comparing the absolute value of the instantaneous voltage drop change rate with a preset critical slope threshold and a time window threshold to perform dual determination; and triggering a hardware logic blocking drive signal when a short-circuit fault is detected at the output terminal.

This invention relates to the field of process control technology, specifically a cloud-based oxygen humidification status management system. The system includes an interface visual monitoring module, a spectrum feature extraction module, a flow mapping inversion module, a deviation calculation module, and a valve execution control module. In this invention, by acquiring video streams of the bubble generation area and extracting grayscale time-domain waveforms, non-contact visual information is transformed into frequency-domain features reflecting the bubble oscillation rhythm. Discrete Fourier transform is used to analyze the physical mapping relationship between bubble generation frequency and gas flow rate, achieving non-invasive and accurate inversion of oxygen volumetric flow rate. This eliminates errors from manual readings and mechanical wear interference. Combined with proportional-integral-differential logic, flow deviation is calculated in real time, driving the electronic actuator to automatically correct valve opening, ensuring that the oxygen supply flow rate strictly matches the target standard, effectively improving the automation level and control stability of the humidification oxygen supply process.