18results about How to "Reduce transmission errors" patented technology

The invention relates to the technical field of digital information processing, and provides a photovoltaic power station data operation and maintenance management system, and a data exchange network service management system comprises a server, a cloud management module, an edge calculation module, a data exchange module, a performance evaluation module, an intelligent routing module and a self-adaptive data synchronization module. The performance evaluation module is used for monitoring key performance indexes of the network state of the whole system, evaluating the current running states of the cloud, the edge nodes and the network state through the key performance indexes to form an evaluation result, and feeding back the result to the cloud management module, the edge calculation module, the self-adaptive data synchronization module and the intelligent routing module; and the data exchange module is responsible for data synchronization and exchange between the cloud and the edge nodes, so that the data consistency of the edge nodes in the system is ensured.

The invention relates to the technical field of data processing, in particular to a data transmission method and system for industrial edge gateways, and the method comprises the steps: obtaining industrial production equipment data, constructing a data queue, and obtaining the busy degree of each edge gateway based on the operation data of the data queue; according to the busy degree of each edge gateway, obtaining transmission results after the different data queues are transmitted to the cloud server, and calculating feedback rewards transmitted by the edge gateways by selecting the different data queues; and on the basis of the feedback rewards, using a UCB algorithm to calculate the confidence coefficient of each queue for transmitting data to the cloud server, and adjusting the data queue through which the edge gateway passes when transmitting the data to the cloud server according to the confidence coefficient. According to the method, the data transmission strategy is dynamically adjusted by monitoring the busy degree of the edge gateway and the transmission result of the data queue in real time, and rapid changes of task frequency, data volume and network conditions are better adapted, so that the data transmission efficiency is improved.

The invention discloses a suspension arm stress detection method and system used in the hoisting process, and relates to the technical field of equipment testing. According to the method, communication verification before operation is carried out, device verification data is collected, the working state of the device can be evaluated, the fault risk in hoisting operation can be reduced, the accuracy of hoisting data collection is improved, then hoisting load historical data is obtained, comprehensive processing is carried out in combination with the collection device verification data, and the hoisting efficiency is improved. Corresponding pre-operation adjustment is executed according to the comprehensive processing result, more comprehensive data support can be provided for the hoisting operation, the pre-operation adjustment is more accurate, finally, the hoisting operation is executed after the pre-operation adjustment, the hoisting process is synchronously detected and analyzed to obtain a hoisting arm stress comprehensive evaluation index value in the hoisting process, and the hoisting efficiency is improved. And the stress evaluation information of the lifting arm in the lifting process is obtained through analysis, the lifting process is adjusted, the stress state of the lifting arm can be monitored in real time, and abnormal conditions can be found and processed in time.

The invention discloses an Internet of Things electric energy meter Bluetooth communication reliability realization method and system, and relates to the technical field of Internet of Things communication, and the method comprises the steps: an Internet of Things electric energy meter and Bluetooth communication equipment establish connection through a Bluetooth pairing process, carry out identity authentication through a secret key, initialize data transmission, carry out data transmission, and realize communication. In a data transmission process, an error correction and data recovery algorithm is utilized to reduce transmission errors, data during communication is monitored in real time, the monitored data is utilized to establish an intelligent prediction model, the communication quality is predicted, whether the quality meets requirements is evaluated according to the predicted communication quality, and a self-adaptive adjustment algorithm is utilized to adjust communication parameters. And monitoring equipment parameters and security threats in real time, and triggering a key dynamic updating mechanism to periodically update an encryption and authentication strategy according to a monitoring condition. According to the method, the problems of insufficient communication error rate, insufficient communication quality monitoring and prediction, insufficient communication parameter adjustment flexibility and low safety in the prior art can be solved.

The invention relates to the technical field of serial port communication, and discloses a serial port-based DSP (Digital Signal Processor) application program online upgrading method, which comprises the following steps of: 1, designing an upgrading program to be used as a program which is firstly operated after a DSP is powered on, judging whether upgrading is needed or not, and executing an upgrading process, and 2, designing a circuit with a power-off detection function and integrating the circuit in a power management module of the DPS host. According to the method, smaller data structures and algorithms are selected from data structures of arrays, linked lists, stacks and queues and linear search algorithms to design the upgrading program, so that memory occupation can be reduced, and in the upgrading process, upgrading program codes are divided into small data packets which are sent to a buffer area of an RAM in batches; the data volume transmitted each time can be ensured to be controllable, the pressure on system resources can be reduced by sending the data packets in batches, and particularly on equipment with limited resources, the situation that a large amount of memory or processor time is occupied at a time is avoided.

This invention discloses a method for distinguishing and marking multiple foreground objects in image data streams. The steps include: 1) connecting a camera to an FPGA, whereby the camera transmits the acquired fiber optic unit array image to the FPGA line-by-line in real-time in a streaming manner; 2) the FPGA detects the received image pixels, identifies and marks the light spot pixels; 3) the FPGA calculates the optical centroid coordinates of the corresponding light spot pixels based on the marked light spot pixels. This invention can process the image data stream in real-time at the image acquisition end, distinguishing and marking each fiber optic light spot pixel. This allows for real-time calculation of the light spot centroid at the image acquisition end while maintaining accuracy, thereby greatly reducing data transmission volume and enabling the host computer to obtain the optical centroid coordinates of the fiber optic unit in real-time. This provides an accurate and real-time labeled image data stream for subsequent optical centroid calculation, thus improving overall positioning efficiency.

The invention relates to the technical field of signal enhancement, in particular to a high-efficiency wireless signal enhancement method and system, and the method comprises the steps: obtaining a current wireless signal and a historical wireless signal, determining a signal transmitting position and a signal receiving position according to the current wireless signal, the method comprises the following steps: screening historical wireless signals based on a receiving and transmitting range between a signal transmitting position and a signal receiving position to obtain reference wireless signals, performing signal transmission fluctuation analysis on the reference wireless signals to obtain a signal transmission curve and a transmission label, training a signal enhancement model to obtain a signal enhancement model, and performing signal transmission analysis on the signal enhancement model to obtain a signal enhancement result. And performing signal transmission fluctuation analysis on the current wireless signal to obtain a current signal curve, inputting the current signal curve into the signal enhancement model for enhancement to obtain an enhanced current signal curve, and generating a wireless signal to be transmitted based on the enhanced current signal curve. According to the invention, the transmission efficiency of the wireless signal is improved.

The utility model discloses a transfer device and a robot, and belongs to the technical field of robots. The transfer device comprises a support, a linear driving part, a rotary driving part and a vacuum adsorption part. The fixed end of the linear driving piece is connected with the support; the fixed end of the rotary driving part is connected with the output end of the linear driving part; and the vacuum adsorption piece is connected with the output end of the rotary driving piece and is used for adsorbing the workpiece. According to the transfer device, the size of the transfer device is effectively reduced, the structure of the transfer device is simplified, transmission errors and abrasion caused by intermediate transmission are reduced, and therefore the motion precision of the transfer device is effectively improved.

The invention discloses a line galloping monitoring method and system, and the method comprises the steps: a satellite builds an ionosphere model according to ionosphere data, and calculates a difference vector between a current moment and a previous moment according to a spherical harmonic coefficient vector set in the ionosphere model; the satellite compresses a non-zero value in the differential vector and a serial number in the differential vector and then sends the non-zero value and the serial number to the base station, and the base station receives and restores the differential vector; the reference station calculates an ionosphere model spherical harmonic coefficient vector and ionosphere delay at the current moment by using the reduced difference vector; and obtaining time sequence data of the position of the line galloping monitoring device according to the ionosphere delay of the coordinates of the line galloping monitoring device. According to the method, the data transmission quantity is greatly reduced, the real-time performance of data transmission is improved, and the integrity of the data is ensured by constructing the initial restoration vector and utilizing the Data and index arrays to restore the data in a lossless manner.

The present invention relates to the field of data processing technology, and in particular to a computer data transmission system, comprising: a file initiating terminal, a preprocessing module, a first optimization module, a second optimization module, a third optimization module and a file receiving terminal; the preprocessing module evaluates the file to be transmitted, determines the transmission mode of the file to be transmitted according to the initial capacity obtained by the evaluation, and in the case where the file to be transmitted needs to be segmented, the second segmentation standard is modified by optimizing the file to be transmitted and determining the final segmentation standard, thereby obtaining a number of actual segmented files, and completing the transmission of the target content according to the requirements of the control instruction. After the file to be transmitted is segmented, the present invention realizes parallel transmission, fully utilizes the network bandwidth, speeds up the overall transmission speed, saves the transmission time, and makes it more flexible to manage the transmission process to maximize the transmission efficiency.

This invention discloses an OTA upgrade and rollback method for an electric two-wheeled vehicle controller and an electric two-wheeled vehicle. The controller includes an MCU and a Bluetooth chip. The MCU's flash memory is divided into a bootloader guidance area and an APP running area, while the Bluetooth chip's flash memory is divided into a Bluetooth APP area and an MCU program backup area. The method includes: after the controller is powered on, the MCU chip enters the guidance area, detects a valid upgrade flag, backs up the current firmware in the APP running area, and encrypts and transmits it to the backup area. After the backup is completed, an OTA upgrade is performed. After the upgrade is completed, the guidance area verifies the upgraded firmware in the APP running area. If the verification passes, it jumps to the running area and sets the upgrade flag to invalid; if the verification fails, a rollback process is triggered. The guidance area decrypts the firmware stored in the backup area and rolls it back to the APP running area. By utilizing the remaining space resources of the Bluetooth chip, the overall resource utilization efficiency of the controller is improved.

This invention proposes a high-precision single-arm robot for wafer pick-and-place, comprising a supporting frame, a lifting support frame, a primary pick-and-place arm, a secondary pick-and-place arm, a lifting drive motor, a primary deflection motor, and a secondary deflection motor. The lifting drive motor is a servo motor, possessing high-precision position control capabilities. It can precisely control the lifting position of the support frame according to input command signals and respond quickly to control signals, accelerating the lifting speed of the support frame and improving the overall response speed of the robot. The primary and secondary deflection motors are direct-drive motors, reducing transmission errors and mechanical backlash. This allows for more precise control of the deflection angles of the primary and secondary pick-and-place arms, improving the robot's operational accuracy and enabling the primary and secondary pick-and-place arms to respond quickly to control commands, thereby enhancing the robot's response speed.

The invention discloses an upgrading method and device of an energy storage system, the energy storage system and a storage medium, the upgrading method of the energy storage system is applied to a battery management controller in the energy storage system, the energy storage system further comprises a sub-battery management unit, and the battery management controller is connected to the sub-battery management unit. Comprising the steps that a connection request is sent to a sub-battery management unit, so that the sub-battery management unit establishes communication connection with a battery management controller according to the connection request; and sending first data to the sub-battery management unit based on the communication connection, so that the sub-battery management unit is upgraded according to the first data. According to the method, in the process of upgrading the sub-battery management unit, the first data used for upgrading the sub-battery management unit is transmitted to the sub-battery management unit based on the battery management controller, so that the safety risk in the process of upgrading the energy storage system is reduced.

The utility model relates to the field of textile industry, and discloses a gripper roller of a bale plucker, which comprises a bale plucking unit arranged on one side of a bale plucker body capable of lifting, positioned above a conveyor and used for plucking cotton on the conveyor; the bale plucking unit comprises a bale plucking assembly which is arranged on the bale plucker body, moves up and down along with the bale plucker body and is used for plucking cotton materials; the pressing assemblies are arranged on the two sides of the cotton grabbing assembly and used for pressing the two sides of the cotton material when the cotton grabbing assembly grabs the cotton material, the density and uniformity of the cotton material are improved, it is guaranteed that the amount of the grabbed cotton material is uniform, transmission errors and equipment faults caused by the problem that the cotton material is wound around the cotton grabbing assembly are effectively reduced, and the working efficiency is improved. The cotton grabbing effect and quality are improved, and the service life of equipment is prolonged.

The invention provides a communication module anti-interference message transmission method and an electric energy meter. The communication module anti-interference message transmission method comprises the steps that a communication module receives communication data sent by a master station; the communication module encapsulates the communication data into a frame structure conforming to a preset HDLC protocol, and sends the frame structure to the main control module through a physical communication interface; the main control module receives the frame structure, determines the frame boundary of the frame structure according to the start mark and the end mark, and performs integrity verification on the frame structure by using the verification sequence; and if the verification result is that the verification is passed, the main control module sends preset response information to the communication module, and analyzes the communication data from the information field. In the mode, an HDLC protocol packaging and checking mechanism is introduced into the physical connection of the communication module and the main control module, so that frame boundary self-synchronization and content integrity detection in a data transmission process can be realized, and the communication reliability and the data accuracy of the electric energy meter in a complex electromagnetic interference environment are improved.

The invention relates to the technical field of optical communication networks, in particular to a method for measuring distance from a PON (Passive Optical Network) port to ONU (Optical Network Unit) equipment, which comprises the following steps of: S1, configuring a distance measuring control module at an OLT (Optical Line Terminal) end of a PON network, and carrying out initialized static distance measuring between an ONU and the OLT and dynamic distance measuring in normal communication through a distance measuring technology; s2, measuring the loop delay of a data signal sent from the downlink of the OLT to the uplink of the ONU, wherein a delay compensation mechanism adjusts a sending window in real time; s3, through a temperature sensor and an equipment self-checking function, environment change is monitored in real time, intelligent prediction and preventive maintenance are carried out, and bandwidth allocation and a transmission strategy are automatically adjusted; and S4, viewing the ranging data, bandwidth utilization condition and network state of each ONU, and performing optimal configuration according to maintenance suggestions. The method can improve the bandwidth utilization rate, improve the transmission stability, prevent faults in advance, reduce the maintenance cost and improve the operation and maintenance efficiency.

The application discloses a high-precision straight stroke electric actuator with double-position positioning and relates to the technical field of electric actuators. A Hall sensor assembly is arranged corresponding to the rotor magnet steel of a driving motor; an output gear is fixedly arranged on a center rod and rotates synchronously; a first encoding gear is engaged with the output gear; a second encoding gear is engaged with the first encoding gear and has a tooth number difference with the first encoding gear; two magnetic angle sensors respectively sense the rotation angles of corresponding magnets, and the absolute rotation position of the center rod is calculated in combination with the tooth number difference. The application constructs a double-position positioning system, guarantees the dynamic response speed of the motor, eliminates the position error caused by the gap and wear of the speed reduction mechanism, improves the control precision and stability of the actuator, realizes the position information keeping without power supply or light source in the power-off state, and directly reads the current absolute position without recalibration after secondary power-on.

The utility model discloses a kind of chuck mechanical hand structures of injection molding machine, belong to injection molding machine auxiliary equipment technical field, it includes fixed bolster, fixed bolster is rotatably connected with screw rod, gas pipe and first connecting pipe interface place are respectively connected with outer power source, fixed block is integrated with the driving mechanism used in cooperation with cooperation pressure sensor and outer power source, exhaust block is located below chuck main part;The utility model controls screw rod rotation by driving mechanism, drives movable block to move along screw rod axial direction, realizes accurate positioning in horizontal direction, electric telescopic link and screw rod collaborative action, workpiece is moved to specified position, outer power source is broken vacuum by a small amount of gas, exhaust block is synchronously moved downward, auxiliary stripping workpiece, by the cooperation between high-pressure airflow and semi-arc exhaust block, effectively remove workpiece surface pollutant, applicable to oil stain and dust in injection molding environment, double-layer suction nozzle structure reduces the risk of pollutant into chuck interior, prolongs service life.