11results about How to "Implement redundant backup" patented technology

This invention relates to the field of aircraft health management technology, and discloses a system and method for implementing aircraft health management. The method collects health data from various monitoring points on the aircraft and status information from various ground processing nodes; then, based on this data and information, it processes the data to obtain target monitoring point clusters for each ground processing node; next, it preprocesses and configures the health data sent by the target monitoring point cluster, and then aggregates the cluster health data from each ground processing node and uploads it to a health database storage interface; finally, it synchronously obtains and analyzes the operational data from each storage interface through the health database storage interface, and performs distributed storage management of the cluster health data. This method can provide a scientific basis for aircraft maintenance, effectively improve aircraft safety, reliability, and operational efficiency, and reduce operating costs, thus having significant application value in the field of aircraft health management.

The application discloses a power supply system and control method for a security patrol vehicle. The system includes a main power supply, a capacitor unit, a converter, a power distribution module and a controller. The controller obtains vehicle chassis data, load operating state and pre-trigger signals of control components; predicts future power demand based on the pre-trigger signals, generates a predicted power trajectory; generates a main power supply target power curve accordingly, and calculates capacitor charging and discharging power instructions; simultaneously, adjusts the pre-charge voltage of the capacitor unit in advance according to the expected energy demand. The application realizes active forward-looking prediction of power demand by intercepting pre-trigger signals, and adjusts the capacitor energy storage state in advance, solving the bus voltage drop problem caused by high-power pulse loads. In addition, the application also proposes a dual-capacitor dynamic master selection strategy based on a comprehensive availability index and a frequency domain decoupling cooperative control mode, improving the transient response speed, reliability and energy utilization efficiency of the power supply system.

This utility model provides a double-wing stationary contact assembly for a switch machine, relating to the field of switch machine technology. The double-wing stationary contact assembly includes: a base with at least two slots; and a contact assembly disposed at the slots. The contact assembly includes a contact piece and a contact post connected together. The contact piece includes a first contact piece and a second contact piece, with the second contact piece disposed outside the first contact piece. The first contact piece includes an arc segment and a first connecting segment. The second contact piece includes a bent segment and a second connecting segment, with the arc segment disposed within the bent segment. The first connecting segment and the second connecting segment are stacked. This stationary contact assembly solves the problems of low reliability, easy arc erosion, and poor self-cleaning ability of existing stationary contact assemblies due to single-wing contact.

The invention provides an electronic mechanical braking system and an electric vehicle, and relates to the technical field of electric vehicles. In the braking process of the electric vehicle, the central controller is used for alternately sending different first message information to each wheel end braking device through the two CAN communication links, the multiple different first message information jointly form a braking signal, and after the central controller sends the first message information through one CAN communication link, the braking signal is transmitted to the wheel end braking device through the CAN communication link. According to the embodiment of the invention, the next piece of first message information does not need to be sent after the time interval of sending the first message information through the CAN communication link, the first message information can be directly sent through other CAN communication links, and the original sending period of the first message information is optimized to the time interval between the first message information sent through two CAN communication links. The communication time delay of brake signal transmission is reduced, the response speed of a brake system is increased, the brake time and the brake distance are reduced, and the driving safety is guaranteed.

The invention discloses a spliced screen control system and method, a display device and a computer readable storage medium. According to the embodiment of the invention, the spliced screen control system comprises a plurality of display screen control modules, and each display screen control module comprises a video input interface used for inputting a video signal; the video copying unit is used for receiving the video signals and copying the video signals to obtain multiple paths of output video signals; the video processing unit receives one path of output video signal; the video processing unit is used for processing the received output video signal so as to drive a corresponding display screen; and the at least one video output interface is used for receiving one path of output video signal and sending the received output video signal to the other display screen control module. According to the spliced screen control system and method, the display device and the computer readable storage medium, wiring of the spliced screen can be simplified.

The invention, which relates to the technical field of new energy application and intelligent operation and maintenance, discloses a photovoltaic wireless charging base station comprising a structure supporting module, a photovoltaic power generation unit, an intelligent control module, an energy storage module, a wireless charging module and a cloud service platform. The energy storage module comprises three independent pluggable battery packs, namely a main power supply battery pack C0, a first standby battery pack C1 and a second standby battery pack C2; the intelligent control module executes a multi-battery-pack intelligent scheduling algorithm, and controls the charging and discharging priority and automatic switching of each battery pack; the battery pack adopts a quick release structure and can be quickly extracted for emergency battery replacement; and the cloud service platform realizes remote monitoring and operation and maintenance management through the wireless communication module. According to the invention, zero-construction rapid deployment and unmanned intelligent operation and maintenance can be realized, and the reliability of energy supply is ensured through a dual guarantee mechanism of wireless charging and emergency battery replacement.

This invention relates to a steering device driven by a dual-stator permanent magnet motor. The coaxial dual-stator permanent magnet motor provides power to the steering device. The two stators are connected in series and share a single motor shaft. A dual-stator permanent magnet motor controller and two drivers enable either single-stator or dual-stator operation. The splined shaft at the output end of the dual-stator permanent magnet motor is inserted into the input splined shaft sleeve of a planetary gear reducer. The reducer amplifies the steering torque on the splined shaft, which is then transmitted to the pinion. A sector gear ring meshing with the pinion is fixed to the rudder handle via a transmission pin, driving the rudder handle to rotate, thereby rotating the rudder blades on the rudder handle. The integrated dual-stator design provides redundancy, significantly improving the reliability and endurance of the steering system. The electric direct-drive steering method enhances power conversion efficiency, and the torque amplification through the reducer and gear transmission mechanism enhances the applicability of the electric steering mechanism to large ships.

A fault-tolerant method for a dual-Y-shift 0° dual-redundant motor is disclosed, relating to the field of fault-tolerant motors. This invention addresses the problem that after a fault occurs in a dual-Y-shift 0° dual-redundant electric winch, the faulty winding needs to be located first and then disconnected, resulting in a lengthy fault-tolerant process. The fault-tolerant method for a dual-Y-shift 0° dual-redundant motor described in this invention decouples the motor and obtains the d- and q-axis voltage setpoints for both windings. These setpoints, along with current feedback values, are input to a d- and q-axis voltage disturbance observer to obtain estimated d- and q-axis voltage disturbances for both windings. The estimated voltage disturbance of the faulty winding is then superimposed onto the d- and q-axis voltage setpoints of the non-faulty winding, thus achieving fault-tolerant operation of the dual-Y-shift 0° dual-redundant motor.

The invention discloses a decoupling type electronic braking system which comprises a pedal assembly module, a control module and an electronic braking module. The pedal assembly module sends a control signal to the pressure building module, pressure building, pressure maintaining and pressure reducing control is conducted on at least two wheels of an automobile through the pressure building module, and the wheels comprise two front wheels and two rear wheels; the backup module is used for monitoring a hydraulic pressure signal generated by the pressure building module in the control process, assisting hydraulic pressure control and carrying out backup pressure building on front wheels of the automobile; the brake system is designed and improved, the number of electromagnetic valves in the system is reduced, the cost is reduced, meanwhile, the redundant power-assisted brake capacity is achieved, wheel cylinder pressure adjustment can be achieved, and therefore redundant backup for the anti-lock function and the vehicle body stability control function is achieved.

This invention relates to the field of energy management technology, and discloses a distributed energy device collaborative system and its master control redundancy backup method and system. The method is applied to a system comprising at least two distributed energy device units with different functions interconnected via a local network. Each unit runs the same control software and has a unique device identifier. Based on the device identifier, a current master control device is elected according to preset rules. The current master control device periodically collects system data and generates and broadcasts synchronization data packets with verification information. The remaining devices receive and verify the data packets, update their local status upon successful verification, and continuously monitor the online status of the master control device. When the master control device is detected to be offline, a re-election event is triggered, electing a new master control device from the remaining online devices. This invention achieves dynamic redundancy backup of control roles through a distributed election and status synchronization mechanism, significantly improving system reliability, availability, and fault tolerance, while reducing system cost and complexity.

The invention discloses a decoupling type electronic braking system based on redundant braking. The decoupling type electronic braking system comprises a pedal integration unit; the pedal integration unit sends a control signal to the brake pressure building unit, pressure building, pressure maintaining and pressure reducing control is conducted on at least two wheels of an automobile through the brake pressure building unit, and the wheels comprise two front wheels and two rear wheels; the backup unit is used for monitoring a hydraulic pressure signal generated by the brake pressure building unit in the control process, assisting hydraulic pressure control and carrying out backup pressure building on front wheels of the automobile; the backup unit further comprises two pile-up valves and two plunger pumps, and the plunger pumps are connected with a backup voltage buildup motor. According to the system, in the working condition of long-time working of a low-attached ABS and the like, when the plunger liquid amount of the active pressure building assembly is consumed to be lower than a certain threshold value, and the plunger needs to rapidly return and supplement liquid, the system can be achieved only by closing the pressure increasing valve, and the active pressure building assembly does not need to act any more.