16 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 invention discloses a multi-terminal differential protection control method and device for automatic identification of a topological structure and a storage medium, and belongs to the technical field of electricians, the method comprises the following steps: enabling each single-terminal device in a multi-terminal differential protection device to communicate through a multi-terminal differential channel, and enabling a data frame transmitted in the communication process to be used for identifying a communication state; recording a communication state between each single-ended device and other single-ended devices through the single-ended device, and sending the communication state to the other single-ended devices; judging a topological structure of a multi-terminal differential channel according to the communication state of each single-terminal device and the received communication states of other single-terminal devices; according to the differential protection method and device, the corresponding differential logic calculation is carried out according to the topological structure judgment result, the corresponding differential protection is executed according to the calculated differential logic, and the differential protection is locked when the topological structure is invalid, so that the risk that the differential protection quits and has no protection due to the fact that the differential channel is abnormal is avoided or reduced, and the utilization rate of the differential protection is improved.

The invention discloses a differential protection method and system for preventing abnormal current from being serially connected to a non-fault phase, and belongs to the technical field of power grid relay protection, and the method comprises a data calculation link which is used for calculating analog quantity data; the starting judgment link is used for starting judgment of the locking criterion; the locking judgment link is used for single-phase fault locking non-fault phase judgment; an open discrimination link, which is used for open discrimination of the locked phase fault; and the differential calculation link is used for differential logic operation of an unlocked phase and a locked-reopened phase. According to the method, a non-fault phase locking technology and a locked phase fault reopening technology based on fault characteristics are adopted, non-fault phase differential protection is reliably locked when abnormal current is connected into a non-fault phase in series, locked phase differential protection with faults is quickly opened when convertible and developmental faults occur, and the fault protection efficiency is improved while the quick action is considered. And the capability of preventing the abnormal current from being serially connected into the non-fault phase in differential protection is obviously improved.

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 provides a multi-channel reconfigurable capacitance-to-digital converter for a wearable sensing system, and belongs to the technical field of capacitance-to-digital converters. The output end of a capacitive voltage divider network is in signal connection with the input end of an on-chip or off-chip offset capacitance calibration circuit, and the output end of the off-chip offset capacitance calibration circuit is in signal connection with the input end of an on-chip differential logic successive approximation register type analog-to-digital converter circuit; the output end of the on-chip differential logic successive approximation register type analog-to-digital converter circuit is in signal connection with the input end of the digital signal processing circuit; according to the invention, sub-muW wearable sensing application and a capacitive sensor array supporting wearable medical application can be realized; a high-power-consumption operational transimpedance amplifier is eliminated, and the capacitance detection precision is improved through a capacitance calibration technology; specific channel information among 10 available channels can be distinguished, and the digital output of the CDC can be accessed through an SPI.

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.

The invention is suitable for the technical field of power system relay protection, and provides an equipment communication method and system, terminal equipment and a storage medium, and the method comprises the steps: obtaining first message data; the first message data is time sequence data corresponding to the current moment of the first logic device; sending the first message data to a second logic device to indicate the second logic device to perform time sequence calibration according to the first message data to obtain a calibration time sequence, and sending second message data to the first logic device; wherein the second message data is the state data of the slave device acquired by the second logic device based on the calibration time sequence; and after receiving second message data sent by the second logic device, sending the second message data to the master device to indicate the master device to perform differential logic operation according to the second message data to obtain an operation result. According to the method, the communication time efficiency of the equipment can be improved, so that differential protection misjudgment caused by time sequence non-communication is eliminated.

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.

The invention relates to the technical field of data processing, and particularly discloses a program file reading method and device, computer equipment and a readable storage medium, and the method comprises the steps that a context making template is displayed for filling, and the context making template comprises the following fields: a file address, a file line separator and a file line object type; reading a common reading template, wherein the common reading template comprises the following abstract methods: a pre-processing method, a file line reading method, a post-processing method, an exception processing method and an end processing method; and reading the file according to the contents of the context formulating template and the public reading template. According to the method, the reading template of the program file is divided into the public part and the user-defined part, a complex public processing process is packaged, and differences are abstracted, so that self-expansion of a user is supported, and a code structure is clear; moreover, the method can be better compatible with differential logic, and the reading accuracy is improved.

The invention relates to the technical field of general control or regulation systems, and discloses an intelligent tobacco stack regulation and control method based on a three-dimensional shelf microenvironment model, which comprises the following steps of: operating an average value control loop to maintain overall stability, and operating a balance control loop which is used for monitoring gradient cumulants among characteristic areas so as to regulate and control tobacco stacks according to the gradient cumulants among the characteristic areas; direction switching of the airflow circulation actuator is triggered on the basis; and a predictive suppression step is run in parallel, when the predictive suppression step monitors that the instantaneous gradient and the gradient change rate simultaneously exceed respective preset thresholds, the output power of the temperature and humidity actuator is actively reduced, a dual-scale control architecture is constructed, the process balance is realized in a long period by using integral logic, and the real-time performance of the temperature and humidity actuator is improved. And meanwhile, the quality damage risk is avoided on the instantaneous scale by utilizing differential logic, and orthogonal decoupling of balance and safety is realized.

The invention provides a model construction method, an industrial decision prediction method and device and electronic equipment, and relates to the technical field of communication. The method comprises the following steps: constructing an industrial field knowledge graph; the industrial field knowledge graph defines industrial field rules according to standardized symbols; constructing a feature extractor; the feature extractor is used for performing data processing and feature extraction on the industrial data; performing joint optimization on the industrial field knowledge graph and the feature extractor through differentiable logic to obtain an industrial model; the industrial model is used for outputting an industrial decision prediction result corresponding to the industrial data. According to the scheme of the invention, the problems of rule and data separation and lack of interpretability of an output decision prediction result in a current industrial large model can be solved.

The invention provides a compiling method and device for a programmable logic control system and electronic equipment, and the method comprises the steps: determining configuration setting information, communication data content format information and IO variable logic variable management information of a target programmable logic control system for the target programmable logic control system; determining a program organization unit source file supporting the target programmable logic control system, and forming a corresponding program organization unit source file of a target version; and generating a downloading file of the target programmable logic control system based on the program organization unit source files of all the target versions so as to control the target programmable logic control system to run. According to the method, the modularization modeling and management method of the logic program set is established by applying mapping of the logic variables and the IO variables, modularization splicing and inserting type logic adaptation and differential logic increment content compiling for different wind power equipment configuration scenes are achieved, the manual burden is relieved, and the compiling efficiency is improved.

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.

The invention is suitable for the technical field of power system automation and relay protection, and provides a configuration-free power distribution network multi-terminal T-connection double-ring line differential protection processing method, which comprises the following steps: acquiring first parameters corresponding to a plurality of second interval devices input by a user, the second interval equipment is equipment, except the first interval equipment, in the interval equipment accessed to the power distribution network; the first parameter is used for indicating an interval device corresponding to the message data needing to be received; according to the first parameter, determining corresponding third interval equipment which needs to receive the vexation message data from a plurality of pieces of second interval equipment; obtaining first message data sent by a third interval device; and executing differential logic operation according to the first message data to obtain a calculation result. The method can support the access of more lines, is suitable for more complex T-connection lines of the power distribution network, is high in flexibility, and reduces the operation and maintenance cost.