Transparent liquid sensing method based on style migration

The invention is suitable for the technical field of deep learning and target detection, and relates to a style migration-based transparent liquid sensing method, which comprises the following steps of: S10, acquiring a source domain data sample and a target domain data sample, and constructing two liquid data sets with different styles; s20, constructing a lightweight style migration network model; s30, performing iterative training on the data obtained in the step S10 on a lightweight style migration network model to obtain an optimal style migration network model; s40, performing liquid image style conversion by using the optimal style migration network model; s50, constructing a liquid detection network model based on YOLOv5s; s60, performing iterative training on the liquid image style conversion data obtained in the step S40 on a liquid detection model to obtain an optimal liquid detection network model; and S70, inputting the converted liquid image style data into the optimal liquid ...

Ternary lithium battery capacity detection method based on machine learning

The invention discloses a ternary lithium battery capacity detection method based on machine learning, and the method comprises the following steps: obtaining battery data, and constructing a data set based on the battery data; performing data dimension reduction and standardization processing on the data set; constructing a battery capacity detection model, training the battery capacity detection model through the data set, and evaluating the trained model; and inputting newly collected battery data into the evaluated battery capacity detection model to realize real-time online detection of the battery capacity. According to the invention, the technical problem of how to accurately and rapidly carry out accurate nondestructive detection on the battery capacity and output the result is solved.

Method and device for reducing peak-to-average ratio of OFDM signal and storage medium

The invention discloses a peak-to-average ratio reduction method and device for an OFDM signal and a storage medium, and the method comprises the steps: at a signal transmitting end, a signal processing process is as follows: a plurality of subcarriers are reserved in an OFDM symbol, the reserved subcarriers are distributed at equal intervals, and the reserved subcarriers are sequentially the 0th subcarrier, the Qth subcarrier, the 2Q subcarrier,..., the N-Q subcarrier; performing fast inverse Fourier transform on the original frequency domain signal of the OFDM symbol to obtain a corresponding original time domain signal; segmenting the original time domain signal according to the number of reserved subcarriers to obtain a plurality of segmented time domain signals; calculating a complex constant of each segment time domain signal by adopting a minimum circle coverage algorithm; constructing a suppression time domain signal based on the complex constant of each segmented time domain signal ...

Development system of communication protocol stack of multifunctional energy meter

Hydraulic stepping type rope adjusting device and rope adjusting method for vertical shaft steel wire rope

A hydraulic stepping type rope adjusting device for a vertical shaft steel wire rope comprises a multifunctional balance cylinder of an automatic balance suspension device, a rope locking device, a rope adjusting device and a lower barrel, and is characterized in that the multifunctional balance cylinder is divided into an upper cavity and a lower cavity, a piston rod penetrates through the cylinder body and is hollow, and the end of the piston rod is rotationally connected with the head of the rope locking device; an outer cylinder body of the multifunctional balance cylinder is connected with an upper end opening of the lower cylinder body, the rope locking device and the rope adjusting device are arranged in the lower cylinder body, and the rope adjusting device is arranged below the rope locking device. The steel wire rope penetrates through center holes of the multifunctional balance cylinder, the rope locking device and the rope adjusting device. The automatic balance suspension device ...

Method and device for monitoring performance of power battery pack of electric vehicle

The invention discloses a method for monitoring the performance of a power battery pack of an electric vehicle. The method comprises the following steps: acquiring voltage signals of each single battery in the battery pack; carrying out wavelet tower type decomposition on the acquired voltage signals of each single battery; performing wavelet tower type reconstruction on the voltage signal of each single battery after wavelet tower type decomposition to obtain a reconstructed signal; calculating an energy value of the reconstruction signal, and sorting the energy values of the single batteries in the battery pack in sequence; and the steps are repeated until screening of the single batteries in the whole battery pack is completed. The invention further discloses a device for monitoring the performance of the power battery pack of the electric vehicle. According to the invention, the problem of how to accurately and quickly judge the single batteries with poor performance in the power battery ...

Electronic energy meter

The invention discloses an electronic energy meter, comprising a meter bottom box, a main terminal strip, an auxiliary terminal strip and a printed board, wherein the main terminal strip and the auxiliary terminal strip are two independent bodies which can be mutually separated. According to the invention, the mounting of the energy meter is more simple, faster and more reliable. As the auxiliary terminal strip does not block the conductive wire mounting of the main terminal strip, the length of a main terminal copper bar can be shortened, the copper material usage can be reduced by about 40%, and thus, the copper material is saved. In addition, auxiliary terminals in the invention can be directly electrically connected with the printed board through screws, and the defects of high failure rate and low accuracy caused by conductive wire connection in the prior art are overcome, therefore, the service life of the electronic energy meter is prolonged, and the meter is convenient for maintenance ...

Terminal block with current transformer and copper terminal

The invention discloses a terminal block with a current transformer and a copper terminal. The terminal block comprises a plastic terminal box, a copper terminal and a current transformer, wherein a primary copper sheet of the current transformer is electrically connected with the copper terminal. The terminal block is characterized in that: the copper terminal and the current transformer are embedded in the plastic terminal box and are firmly covered by a plastic terminal cover, so that the copper terminal and the current transformer are stably positioned. The terminal block mainly shortens the length of the copper terminal, saves raw materials, simplifies the primary copper sheet of the copper terminal (CT), and reduces the copper amount to save the cost; moreover, the CT and copper terminal split and embedded terminal block structure is adopted and a terminal cover and a terminal stopper are arranged, so that the problem that the copper terminal easily falls off from the plastic terminal ...

Ammeter positioning method based on ammeter clustering mechanism

The invention discloses an electricity meter positioning method based on an electricity meter clustering mechanism. The method comprises the following steps: a master station issues an electricity meter automatic clustering command message to a CCO; the CCO receives and forwards the electric meter automatic clustering command message to all broadband carrier communication modules in the subnet; the broadband carrier communication module reports a first command response message to the CCO; after receiving the first command response message, the CCO establishes a whole-network topological information matrix of the transformer area; the CCO clusters the electricity meters based on the whole network topology information matrix and the phase information reported by each broadband carrier communication module when the broadband carrier communication modules access the network; after the clustering is finished, the CCO sends a second command response message to the master station, and reports ...

High voltage energy meter

The utility model discloses a high voltage energy meter, include the energy supply module and the metering modules that install respectively in the three -phase power line in the phase 1 enzyme phase 2 enzyme, wherein energy supply module is installed at the high -pressure side, metering modules also installs at the high -pressure side, has still installed host system at the high -pressure side of third phase, and metering modules all is connected with host system and communication, and transmitting data is used for host system's electric energy measurement for host system, the utility model discloses because accuracy class and measuring accuracy can be markd according to international standard to the size of direct detection and measurement electric energy, system unit is few, has effectively reduced the probability of the system failure, arrange the metering modules equipotential at the high -pressure side, can effectively prevent the destruction to electric energy meter metering device ...

Direct-current cost control intelligent electric energy meter

The utility model discloses a direct-current cost control intelligent electric energy meter, which comprises a direct-current voltage sampling unit, a direct current sampling unit, a management unit and a direct-current metering unit, a direct-current working power supply unit, a storing unit and a communication unit connected with the management unit; and the direct-current voltage sampling unit and the direct current sampling unit are respectively connected with the direct-current metering unit. The direct-current cost control intelligent electric energy meter can acquire the values of the voltage, current, power, electric quantity and the like of the direct-current power grid, and is particularly suitable for use of automobiles.

Intelligent electric meter

The utility model discloses an intelligent electric meter, including the end cover with connect the radio -frequency card bracket on the end cover, have the recess that is used for installing the radio -frequency card bracket on the end cover, radio -frequency card bracket ultrasonic bonding in in the recess of end cover. The utility model discloses set up the radio -frequency card bracket into whole of U type to set up the ultrasonic bonding line of corresponding shape on its boss, during the assembly, arrange the radio -frequency card bracket in recess in, start the ultrasonic bonder can, assembling process is simply convenient, the assembly effect is reliable. Simultaneously the utility model discloses a set up the heat that produces among its welding process of guiding gutter assurance who moves about freely and quickly the intercommunication and in time discharge on the radio -frequency card bracket, prevent welding deformation, set up corresponding oriented slant through the both ...

Automatic error detection and correction method for ammeter box information

The invention relates to an automatic error detection and correction method for ammeter box information, which comprises the following steps that: when whether the ammeter box information of a certain station area is accurate or not is confirmed, a master station issues an information error detection and correction command message to a CCO of a subnet of the station area; after receiving the information error detection and error correction command message, the CCO forwards the information error detection and error correction command message to all broadband carrier communication modules in the subnet; the broadband carrier communication module reports a first command response message to the CCO; after receiving the first command response message, the CCO obtains whole-network topology information of the subnetworks, and establishes a whole-network topology information matrix of the transformer area; the CCO sends a second command response message to the master station; and after the master ...

Development system of interoperability electricity communication protocol

The invention discloses a development system of an interoperability electricity communication protocol, which comprises an application data processing unit, an IEC62056 communication protocol stack module, a frame buffer zone and an information buffer zone, wherein the IEC62056 communication protocol stack module comprises a physical layer, a link layer and an application layer, data received by the physical layer are put into the frame buffer zone, an information part in the frame buffer zone is transmitted to the information buffer zone, the application layer decodes a service part in the information buffer zone, the decoded service part is processed by the application data processing unit, the returned data are coded by the application layer and sent to the frame buffer zone; the application data processing unit decodes, processes and codes the data part in the information buffer zone and sends the data part to the frame buffer zone; and the link layer codes a frame to obtain an integral ...

Isolation RS485 power supply circuit for electric energy meter and pulse transformer thereof

The invention provides a superstrong isolation RS485 power supply circuit, comprising a clamping protective circuit, a switch oscillation circuit, a pulse transformer, a feedback circuit and a pi shaped filter circuit; input voltage passes through the clamping circuit in a preceding stage, and then passes through the switch oscillation circuit to lead the input low-voltage direct current voltage to be modulated to drive the pulse transformer to work through pulse width pulse duty ratio, the feedback circuit feeds back to a switch chip of the switch oscillation circuit to modulate the duty ratio by optical coupling according to the load change of output voltage and the input voltage change, so as to regulate the output voltage of the pulse transformer to be in a predetermined value stably at any time; the circuit is simple, the remarkable characteristic is that the circuit and the logic and strong electricity part of an electric energy meter are isolated strongly, 8kV isolation intensity ...

Bus communication module

The invention discloses a bus communication module, which comprises a module A and a module B, wherein the module A is provided with an emitting diode and at least two receiving triodes, and all the receiving triodes of the module A can receive when the emitting diode emits communication; and the module B is provided with a receiving triode and at least two emitting diodes, and the receiving triode of the module B can receive when any emitting diode emits the communication. Therefore, the bus communication module can be applied to one communication interface and needs to be isolated with a plurality of communication interfaces to perform time sharing multiplex so as to achieve point-to-points master-slave communication, and can be widely applied to various devices requiring communication.

Integrated combined terminal row

The invention discloses an integrated combined terminal row. The combined terminal row comprises terminals of a strong current terminal row and a weak current terminal row and is characterized in that the combined terminal row also comprises a mounting box body, a mutual inductor, coils and movable and static contact pieces of a relay, wherein the mounting box body is provided with installation positions of the terminals of the strong current terminal row, the mutual inductor and the coils and movable and static contact pieces of the relay, the output end of the fixed contact pieces of the relay is used to connect with the mutual inductor in series and then extend to the terminals of the strong current terminal row to connect with an external power supply, and the terminal of the movable terminal extends to the back of the terminals of the strong current terminal row to be introduced. The integrated combined terminal row of the invention can reduce the contact resistance and the total calorific ...

Bus communication module

The invention discloses a bus communication module, which comprises a module A and a module B, wherein the module A is provided with an emitting diode and at least two receiving triodes, and all the receiving triodes of the module A can receive when the emitting diode emits communication; and the module B is provided with a receiving triode and at least two emitting diodes, and the receiving triode of the module B can receive when any emitting diode emits the communication. Therefore, the bus communication module can be applied to one communication interface and needs to be isolated with a plurality of communication interfaces to perform time sharing multiplex so as to achieve point-to-points master-slave communication, and can be widely applied to various devices requiring communication.

Table meter casing

The utility model discloses a table meter casing, include through screw connection last casing as an organic whole and casing down that going up the casing and installing the sealing washer down between the casing, the up end of lower casing has the recess that is used for inlaying the dress sealing washer, the lower terminal surface of going up the casing has the sand grip press the sealing circle with the recess matching. The leakproofness of table meter casing assembly department has been improved, a lateral wall of casing inlays outward and is equipped with the copper nut down, is provided with the boss on the opposite side inner wall of this lateral wall, and another inboard to the lateral wall is equipped with the female couple of locking, be equipped with the public couple of screw hole, board and locking in the relevant position on going up the casing, it has corresponding screw to form a complete set in the screw hole. Upper and lower casing passes through the cooperation of boss ...

Plug type electric energy meter installing base

The invention discloses a plug type electric energy meter installing base. The plug type electric energy meter installing base comprises an installing foundation bed and current terminal assemblies. Each current terminal assembly comprises a current terminal strip, an expansion sleeve, a centre, a spring and an opening block piece, wherein the axial center of the current terminal strip and the axial center of the expansion sleeve are each provided with a through hole, the spring is arranged in the axial center hole of the expansion sleeve, the lower end of the centre extends out of the lower end of the expansion sleeve through a center hole of the spring, the upper end of the head of the centre is located outside the upper end of the expansion sleeve through limiting of the upper end of the spring, the opening block piece is fixed to the lower end of the centre, the upper end of the current terminal strip is cut and divided into elastic claws by a plurality of notches in the axial direction ...

Plug -in terminal seat

The utility model discloses a plug -in terminal seat, this plug -in terminal seat include the electric plug of pegging graft with the electric energy meter terminal, the mount pad of this electric plug, the electric plug mainly comprises thimble, elasticity component, split type plug -in components, the thimble can wherein remove in inserting the split type plug -in components, and the power that the thimble moved ahead comes from the elasticity component, the removal of thimble makes the subtended angle of split type plug -in components change for guarantee the good contact in electric plug and electric energy meter binding post hole. The utility model discloses a stable grafting of electric plug and electric energy meter can be guaranteed in the aspect, and on the other hand enables the electric energy meter and easily takes out. Realize that quick plug -in is connected between electric energy meter and the power line.

LED liquid crystal display component

The invention discloses a light emitting diode (LED) liquid crystal display component. The LED liquid crystal display component comprises a backlight panel, a liquid crystal screen with liquid crystal pins, an LED lamp, a printed circuit board (PCB) and an infrared receiving tube, wherein the backlight panel is arranged on the PCB; the liquid crystal screen is arranged on the backlight panel; the upper surface of the backlight panel is provided with a plurality of positioning ribs for fixing horizontal position of the liquid crystal screen; the positioning ribs are positioned at the outer edge of the liquid crystal screen; a plastic extension end is arranged on one side of the backlight panel and provided with a plurality of positioning holes with positive/negative indication marks; and both the bottoms of the LED lamp and the infrared receiving tube penetrate through the positioning holes and are fixed on the PCB. The LED liquid crystal display component has the advantages of saving an ...

RTC regulating apparatus of electrical energy meter and RTC automatic compensation correcting method

The invention discloses an RTC adjusting and calibrating device of an energy meter and a method for RTC automatic compensation and calibration. The device comprises a clock tester, a computing device and a communication interface, which are connected in sequence, wherein, the clock tester adopts a wireless sensing way to measure the output signal output by RTC, and the communication interface is connected with the communication interface of the energy meter; the inherent error of clock components of the energy meter through the computing device and the communication interface is stored into the memory of the energy meter. The method measures and stores the RTC inherent error in the energy meter, at the same time, the temperature data measured by temperature measuring equipment is transmitted into the relative error of RTC; the two error data are added up and aggregated by an MCU; and when the aggregated data reaches a minimum unit of RTC in the energy meter, the MCU carries out compensation ...

Mining automatic folding tank door

The utility model relates to a mining automatic folding tank door. A mining automatic folding tank door is composed of a folding tank door body, a steel wire rope, a riding wheel set, a transmission roller set, a transmission device and a driving device, the riding wheel set is fixed to the upper portion of the folding tank door body, one end of the steel wire rope is connected with the folding tank door body and fixed to the transmission roller set after being wound through the riding wheel set, and the transmission roller set is connected with the driving device through the transmission device. The motor rotates forwards to drive the steel wire rope to wind around the transmission roller, the folding tank door hung at the other end of the steel wire rope is lifted accordingly, and the tank door is opened; and the motor rotates reversely, the steel wire rope wound on the transmission drum is loosened, the folding tank door falls down accordingly, and the tank door is closed.

Development system of interoperability electricity communication protocol

The invention discloses a development system of an interoperability electricity communication protocol, which comprises an application data processing unit, an IEC62056 communication protocol stack module, a frame buffer zone and an information buffer zone, wherein the IEC62056 communication protocol stack module comprises a physical layer, a link layer and an application layer, data received by the physical layer are put into the frame buffer zone, an information part in the frame buffer zone is transmitted to the information buffer zone, the application layer decodes a service part in the information buffer zone, the decoded service part is processed by the application data processing unit, the returned data are coded by the application layer and sent to the frame buffer zone; the application data processing unit decodes, processes and codes the data part in the information buffer zone and sends the data part to the frame buffer zone; and the link layer codes a frame to obtain an integral ...

Development system of communication protocol stack of multifunctional energy meter

The invention discloses a development system of a communication protocol stack of a multifunctional energy meter, comprising the communication protocol stack and an application data processing unit, wherein the communication protocol stack is provided with a three-layer frame and a concrete protocol three-layer module, wherein the three-layer frame is used for identifying and calling different concrete protocols and consists of a physical layer, a link layer and an application layer, and the concrete protocol three-layer module divides all the concrete protocols into a physical layer module, a link layer module and an application layer module; the application data processing unit comprises a data processing library and an object management module, wherein a function library is established in the data processing library and on the basis of the storage structure of object management, the object management module manages objects in a listing way, and the data processing library provides a ...

Wedge body and wedge sleeve machining method for rope locking device

A wedge body and wedge sleeve machining method for a rope locking device comprises the steps of turning an outer circle of a workpiece, flattening an end face and drilling a molybdenum wire hole; the workpiece is clamped through a workbench of a wire cutting machine, alignment and programming are conducted, and the inclined face of the inner hole is machined through wire cutting; other structures are machined on the wedge sleeve according to the required size; two trapezoid blocks, namely wedge bodies, cut off through linear cutting are machined according to the required size. The wedge body and the wedge sleeve which are matched with each other and required by the rope locking device are machined by using one blank body and adopting a linear cutting process, the machining process is simple, the machining cost is saved, and batch machining is facilitated.

RTC regulating apparatus of electrical energy meter and RTC automatic compensation correcting method

The invention discloses an RTC adjusting and calibrating device of an energy meter and a method for RTC automatic compensation and calibration. The device comprises a clock tester, a computing device and a communication interface, which are connected in sequence, wherein, the clock tester adopts a wireless sensing way to measure the output signal output by RTC, and the communication interface is connected with the communication interface of the energy meter; the inherent error of clock components of the energy meter through the computing device and the communication interface is stored into the memory of the energy meter. The method measures and stores the RTC inherent error in the energy meter, at the same time, the temperature data measured by temperature measuring equipment is transmitted into the relative error of RTC; the two error data are added up and aggregated by an MCU; and when the aggregated data reaches a minimum unit of RTC in the energy meter, the MCU carries out compensation ...

Pre-warning method for replacement of disposable battery of intelligent electric meter

The invention is suitable for the technical field of intelligent electric meters, and relates to a disposable battery replacement early warning method of an intelligent electric meter, which comprises the following steps: S10, adding a battery voltage sampling circuit in each intelligent electric meter in a transformer area; s20, the battery voltage sampling circuit periodically obtains related battery voltage sampling signals, sampling data is sent to the electric meter communication module after sampling is completed every time, and the electric meter communication module reports the sampling data to the master station; s30, the master station establishes a data storage entry for each networked electric meter in the transformer area and performs related data analysis so as to judge the current state of the disposable battery of each networked electric meter; and S40, the master station provides replacement early warning information for each electricity meter accessed to the network according ...

OFDM (Orthogonal Frequency Division Multiplexing) signal peak-to-average power ratio reduction method based on minimum coverage circle

An OFDM signal peak-to-average ratio reduction method based on a minimum coverage circle method is characterized in that at a signal receiving end, a signal processing process is as follows: after an original frequency domain signal X is obtained, N subcarriers in an OFDM symbol are divided into reserved subcarriers and data subcarriers, the number of the reserved subcarriers is N/Q, and the positions of the reserved subcarriers are distributed at equal intervals; obtaining a time domain signal of a data subcarrier frequency domain signal through IFFT (Inverse Fast Fourier Transform); obtaining a time domain signal of a reserved subcarrier frequency domain signal by adopting a minimum coverage circle method; and adding the time domain signal corresponding to the data subcarrier frequency domain signal and the time domain signal corresponding to the frequency domain subcarrier frequency domain signal to obtain a time domain sending signal of the OFDM symbol. According to the method, the ...

Topology identification method and system for power distribution area

The invention discloses a topology identification method for a power distribution area. The topology identification method comprises the following steps that injection modules are connected to the input ends of distribution boxes and meter boxes respectively; the system is powered on, and the concentrator sends a beacon signal to the injection module; the injection module injects a micro direct current electric signal into each phase power supply line in sequence according to the beacon signal; the concentrator control node collects and reports power frequency period data in a topology identification period; according to the power frequency period data, topological relation identification of the branch lines where the injection modules are located is carried out, the steps are repeated until topological relation identification of the branch lines where all the injection modules are located is completed, and therefore a topological graph of the whole power distribution area is formed. The ...

Standardized production monitoring method based on image recognition

The invention discloses a standardized production monitoring method based on image recognition, and the method comprises the following steps: collecting image data, and constructing an image data set; a YOLOv5 network model is constructed; performing iterative training and quantization and conversion processing on the YOLOv5 network model through an image data set to obtain an optimal model, and outputting a monitoring result of standardized production in real time through the optimal model; and constructing a monitoring service platform, and carrying out real-time monitoring and processing on a monitoring result of standardized production. The technical problems that an existing production supervision mode is not convenient enough and supervision response is not timely are solved.

Low-voltage transformer area user phase identification method based on machine learning

The invention is suitable for the technical field of machine learning, and relates to a low-voltage transformer area user phase identification method based on machine learning, which comprises the following steps: S10, acquiring an electric energy data set of a low-voltage transformer area; s20, analyzing and judging whether missing values and abnormal values exist in the electric energy data set or not; s30, the missing value and the abnormal value are preprocessed; s40, constructing a multiple linear regression model, and judging the phase of the single-phase electric meter; and S50, identifying the phases of the users in the low-voltage transformer area through a K-Means clustering algorithm. According to the method, the process is simple, the operation is convenient, the user phase is identified through the multiple linear regression and K-Means clustering algorithm without adding other hardware, the identification precision is high, the dependence on the hardware is reduced, and the ...

Peak-to-average power ratio reduction method for OFDM signal

A peak-to-average ratio reduction method for OFDM signals comprises the steps that after an original frequency domain signal is obtained at a signal receiving end, IFFT operation is carried out on the original frequency domain signal, and a first candidate time domain signal and Q intermediate vector values are obtained; and calculating the remaining M-1 candidate time domain signals according to the following formula: calculating the peak-to-average ratios of all the candidate time domain signals, and selecting the candidate time domain signal with the minimum peak-to-average ratio as a transmitting signal for transmission. According to the method, the phase sequence is constructed based on three basic principles of periodicity, duality and maximization of the minimum generalized Hamming distance between the phase sequences, so that the calculation process of candidate signals is simplified, the difference between the candidate signals can be larger, and better peak-to-average power ratio ...