9results about How to "Reduce Compatibility Issues" patented technology

This utility model discloses a dedicated drawer switch and switch cabinet developed based on a pull-out low-voltage switchgear, belonging to the field of power supply equipment. The drawer switch includes a drawer body, an input socket, a switch assembly, and a locking assembly. The input socket is located on the drawer panel and electrically connected to a disconnecting switch. The switch assembly includes an operating handle and a drive rod. The operating handle is rotatably mounted on the drawer panel and can rotate between an open and closed position. The operating handle drives the disconnecting switch via the drive rod. The locking assembly includes a connecting structure and a locking pin. A fixing hole is provided in the drawer compartment corresponding to the locking pin. The locking pin is connected to the drive rod via the connecting structure. When the operating handle is in the open position, the locking pin disengages from the fixing hole; when the operating handle is in the closed position, the locking pin is inserted into the fixing hole. The switch cabinet includes a drawer compartment, and the drawer compartment is equipped with the aforementioned drawer switch.

The application relates to the field of medical equipment, in particular to a magnetic resonance guided neurointervention system, the application solves the direction uncertainty problem in single radio frequency coil positioning through symmetrical configuration of double radio frequency coils and a rotating arm structure, and positioning stability is improved. The system comprises data acquisition, radio frequency coil positioning, magnetization pipeline, rotating arm mechanical support, registration, segmentation, calibration, position tracking, feedback control and image fusion display modules. These modules work cooperatively to realize multi-modal magnetic resonance image data acquisition and processing, accurate positioning of an intervention tool, real-time position tracking and image fusion display. The system aims to improve the accuracy and safety of neurointervention, and provides more accurate diagnosis and treatment information for doctors.

This invention relates to the field of marine engineering material preparation technology, and particularly to an eco-friendly marine engineering material and its preparation method. The preparation method includes: leaching waste concrete fine powder with ammonium chloride solution to dissolve calcium ions, separating the calcium ion solution and the leachated waste concrete fine powder; mixing waste concrete aggregate, sea sand, and the leachated waste concrete fine powder to prepare a porous framework; mixing urea, reactive bacteria, calcium ion solution, and seawater to obtain a reaction solution; the reactive bacteria include urease hydrolyzing bacteria and carbonic anhydrase bacteria; injecting the reaction solution into the porous framework, and mineralizing the porous framework in a carbon dioxide gas environment to obtain the eco-friendly marine engineering material. This invention breaks through the dependence of traditional cementitious materials on cement, achieving the synergistic development of construction solid waste resource utilization and green marine engineering.

The application belongs to the technical field of software and provides a soft reset retry method applied to an electronic device containing firmware, a host controller and an embedded storage device; when the firmware initializes the storage device, the host controller is initialized and configured as an initial state of a device identification stage, an idle state command is sent to make the storage device enter an idle state; an operation condition command is sent according to a preset polling rule, and whether internal initialization is completed is judged according to a busy state indication in returned information; if the initialization is completed, the device identification stage is entered; if the initialization is not completed continuously within a preset timeout window, it is determined that polling is timed out and the number of retries is judged; when the number of retries does not reach a maximum number, the host controller is soft reset and reconfigured, the idle state command is sent again, and polling is re-performed after waiting; when the number of retries reaches the maximum number, a device error state is returned and the initialization is ended. The application can solve the problem that the embedded storage device is directly determined to fail by the firmware due to polling timeout of the operation condition command in the initialization process.

The application discloses a universal pressure sensor, which comprises a pressure seat provided with a measuring hole at the bottom end, and a shell fixedly connected with the top edge of the pressure seat at the bottom end, wherein the top end of the pressure seat is provided with a limiting groove, the opening of the shell is downwardly arranged, the top end of the pressure seat and the inner wall of the shell enclose a cavity, the top end of the pressure seat is fixedly provided with a binding plate and a strain gauge, the binding plate is provided with mounting holes and limiting holes, the strain gauge is arranged in the mounting hole, a metal wire is arranged between the strain gauge and the binding plate, a compensation plate is arranged above the binding plate and fixedly connected with the binding plate through a support, the lower end of the support is provided with a limiting block and a containing cavity, the limiting block is inserted into the limiting groove through the limiting hole, the opening of the containing cavity is downwardly arranged to contain the strain gauge and the metal wire, and a plurality of vertical wires are fixedly connected with the compensation plate. The application improves the overload capacity and the sealing performance of the pressure sensor and expands the range of the pressure sensor.

The application discloses a kind of based on FPGA's embedded system remote firmware upgrade device, comprising: instruction analysis module, receiving the erase instruction and programming instruction sent by host, parse instruction type and trigger corresponding operation;CRC check module, for real-time CRC check to the input firmware data stream;Asynchronous FIFO module, for the data of through the CRC check module is cached;Upgrade state control module, for the execution state of management erase and programming operation, and dynamically adjust the reading rate of the asynchronous FIFO module, to match the flash programming timing;QSPI protocol control module, for executing the flash erase operation corresponding to the erase instruction and the flash programming operation corresponding to the programming instruction. Each module division of labor cooperates, and FPGA independently takes over upgrade process, reduces the resource occupancy of MCU, guarantees the reliability of upgrade by check sum and state management, while supporting multiple communication modes enhances compatibility, reduces cost by using existing FPGA resources.

The application discloses an engine multi-vehicle type adaptive NVH quality optimization method and system, and belongs to the technical field of automobile engine debugging. The method comprises the following steps: after an engine is installed to a vehicle to be adapted, vehicle working condition data are collected in real time, the vehicle working condition data comprising a vehicle speed, a throttle opening degree, an engine speed, a gear position, a hydraulic torque converter locking state and an oil temperature signal; whether the engine enters a noise sensitive working condition is identified by comparing the vehicle working condition data with working conditions of the noise sensitive working condition; when the engine enters the noise sensitive working condition, an NVH control strategy embedded in an engine electronic control unit is activated; the NVH control strategy comprises adjusting an engine ignition angle and fuel injection parameters; the engine is controlled according to the ignition angle optimization control instruction and the fuel injection parameter optimization instruction; when the vehicle drives out of the working conditions of the noise sensitive working condition of the engine or gear shifting is completed, normal combustion control logic is restored. The method effectively reduces the in-cylinder pressure rise rate, thereby inhibiting structural knocking noise in the range of 150-600 Hz.

The application relates to a BIM model vector data processing method and system, wherein the method comprises the following steps: converting component geometric information of a BIM model into vectorized data. Based on the vectorized data, a spatial hierarchical index structure is established, wherein the hierarchical index structure is used for storing spatial positions and topological relations among components. The vectorized data is compressed and stored in slices based on the spatial positions, so that optimized vectorized data is obtained. Through a parallel computing framework, the optimized vectorized data is processed in parallel, so that data processed in parallel is obtained. Through a standardized interface, the data processed in parallel is output, so as to support cross-platform applications. The application solves the problem of how to improve the BIM model vector data processing efficiency in the related art.

The utility model relates to the technical field of isolating switches, and discloses a three-position isolating switch for environment-friendly gas, which comprises a mounting base, a three-phase connecting copper bar, switch disconnecting links and a transmission connecting rod, a transverse switch rotating shaft is rotatably connected onto the mounting base, and three disconnecting link bases are equidistantly arranged on the switch rotating shaft. The three-phase connecting copper bar is provided with a grounding static contact matched with the switch disconnecting link, the top of each disconnecting link base is connected with one end of the switch disconnecting link, a main loop static contact is arranged above each disconnecting link base, one end of the switch rotating shaft is connected with one end of a transmission connecting rod, the other end of the transmission connecting rod is connected with a piston, and a cover body is arranged above the piston. An air outlet assembly is arranged on one side of the cover body, and an air outlet is formed in the air outlet assembly. According to the utility model, dry air is used as an insulating medium, and the matching structure of the cover body and the piston is optimized, so that the functions of opening and closing buffering and directional arc extinguishing are realized, and the problems of poor environmental protection property of traditional SF6 equipment and high cost and large size of an existing alternative scheme are solved.