9results about How to "Reduce transmission errors" patented technology

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 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.

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 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.