14results about How to "Avoid shutdown" patented technology

The application relates to the technical field of unmanned aerial vehicle control and communication, and discloses an unmanned aerial vehicle aerial photography automatic management and control method and system based on edge cloud cooperation, which comprises the following steps: a cloud service module generates global aerial photography task parameters; an edge master control module generates global action generation identification and cross-layer action tokens; a physical execution module combines a clock synchronization state and a physical in-place level signal to perform legality discrimination on the tokens, a closed release loop triggers aerial photography and outputs original high-definition code streams; the edge master control module extracts control signaling features, encapsulates the control signaling features into information anchor points, writes the information anchor points into the code streams, generates anchor point-containing media streams, and performs dynamic downsampling; and the edge master control module monitors a link state, generates a new generation of global identification when an exception occurs, and synchronously clears historical control instructions in a buffer area with a microcontroller. The application avoids action disorder caused by network delay, realizes time sequence binding of control signaling and video frames, and reduces network congestion and shutdown risks caused by bandwidth fluctuation.

The invention relates to the technical field of flow management, and discloses an SIM card shared flow pool flow monitoring regulation and control system, which obtains the total flow pool use amount through a flow monitoring module, updates and stores the total flow pool use amount in a shared flow pool use amount database, and compares the total flow pool use amount with a set use standard to determine the flow pool use amount. The method comprises the following steps: analyzing the traffic pool state according to an analysis result, and evaluating the traffic pool state according to an analysis result, and finally, enabling the number of standby SIM cards through a strategy regulation and control module according to the evaluation result to ensure that the traffic remaining amount in the traffic pool is enough to deal with an emergency, and meanwhile, regulating the traffic use standard according to the date per month. According to the method, resource waste caused by the fact that residual flow of the flow pool may not be fully utilized before expiration is avoided, and real-time state management of the SIM card is affected and flow use standards are adjusted according to maintenance time of an operator due to the fact that any operation cannot be performed on the SIM card within the time of upgrading the maintenance window by the operator system is also considered.

The application discloses a photovoltaic inverter layered distributed installation layout optimization method convenient for operation and maintenance and upgrading, constructs a three-layer linkage architecture of a centralized management layer, a regional control layer and a device execution layer, the regional control layer automatically scans a photovoltaic inverter NFC electronic tag through a dynamic topology identification mechanism, realizes plug-and-play of the device and second-level topology updating, a master and standby regional control unit adopts an incremental snapshot synchronization technology, completes non-perception switching within millisecond-level time, and ensures continuity of control instructions, the system adopts an operation and maintenance efficiency index dynamic optimization algorithm, forms an adaptive optimal layout scheme, a five-dimensional health degree evaluation model is constructed by combining DC side attenuation and MPPT deviation, early warning and pre-maintenance of device failure are realized, a time-space separation gray upgrade strategy combined with power generation power prediction is deployed, batch upgrading is realized, and automatic function verification and rollback are realized, and zero risk in the upgrading process is ensured. The application solves the technical problems of static rigidity of a traditional layout and concentrated upgrading risks.

A lock cylinder capable of timely stopping a motor after electric unlocking and locking operation is completed comprises a lock cylinder body and a control box, the lock cylinder body comprises a lock cylinder shifting wheel and a lock cylinder rotating shaft, one end of the lock cylinder rotating shaft is in transmission fit with the lock cylinder shifting wheel, and the other end of the lock cylinder rotating shaft extends into the control box. An unlocking rotating shaft in transmission connection with the lock cylinder rotating shaft and an electric driving device used for driving the unlocking rotating shaft are arranged in the control box, the electric driving device comprises a main board, a motor, a gear transmission unit, a grating disc and a laser sensor, and the gear transmission unit is connected between the motor and the unlocking rotating shaft; the grating disc is connected to the gear transmission unit and can rotate or stop along with the gear transmission unit, the laser sensor is used for detecting a rotation or stop signal of the grating disc and transmitting the detection signal to the mainboard, and when the laser sensor detects the stop signal of the grating disc, the mainboard immediately controls the motor to stop working. The motor can be prevented from continuously working in a locked-rotor state, and the service life of the motor and the service life of a battery are not affected.

The application provides a low dam water intake automatic sand discharge system and a construction method. The low dam water intake automatic sand discharge system comprises a water retaining weir close to an upstream and a low dam close to a downstream. Three retaining walls are vertically arranged close to one side of the water retaining weir. Water inlet chambers and sand discharge chambers are formed between two adjacent retaining walls. The water inlet chambers and the sand discharge chambers are both water inlets close to one side of the water retaining weir. The side wall of the water inlet chamber is provided with a water intake. The water inlet of the water inlet chamber is provided with an inclined plate sedimentation assembly. The bottom of the sand discharge chamber is provided with a sand flushing pipe. One end of the sand flushing pipe extends through the water retaining weir to the side of the water retaining weir close to the upstream. The sand flushing pipe is connected with a sand flushing branch pipe. The water outlet of the sand flushing branch pipe extends into the sand discharge chamber to impact the sand and stones in the sand discharge chamber so that the sand and stones in the sand discharge chamber flow into the downstream along with the water flow. The application realizes automatic sand flushing by water power without external energy. The water intake of the water inlet chamber can continuously operate to avoid shutdown caused by manual cleaning.

This utility model discloses a cyclone separator for a biomass circulating fluidized bed boiler, comprising a flue gas inlet section, a gas-solid two-phase separation section connected to the flue gas inlet section, a flue gas outlet section connected to the top and bottom of the gas-solid two-phase separation section respectively, and a solid return section. The solid return section includes multiple coaxially connected and fixedly connected solid return straight sections and multiple solid return conical sections, which are arranged at intervals in the vertical direction. Flue gas flows in from the flue gas inlet section, rotates along the inner wall of the gas-solid two-phase separation section, and achieves gas-solid two-phase separation through centrifugal force. The gas phase flows out through the flue gas outlet section, and the solid phase is returned from top to bottom through the solid return section. Through segmented and optimized solid return path and gas-solid separation flow field, the intermittent blockage problem caused by alkali metal adhesion in traditional cyclone separators is solved, avoiding forced boiler load reduction or shutdown. It is especially suitable for biomass combustion scenarios with complex fuel types and variable ash composition.

The present application discloses a loading chamber, a loading chamber control method and a wafer processing system, wherein the loading chamber comprises a chamber; a base, which is located in the chamber and is used to carry wafers; an air intake device, which is connected to the chamber and is used to introduce gas into the chamber; and an exhaust device, which is connected to the chamber and is used to exhaust the gas in the chamber; wherein the air intake device is respectively connected to a first gas source, a second gas source and a third gas source, and during a protective layer generation stage, a first reaction gas provided by the first gas source and a second reaction gas provided by the second gas source enter a chamber where no wafer is placed, and react to form a protective layer on at least part of the inner surface of the chamber; during a cleaning stage, a third reaction gas provided by the third gas source is used to clean the chamber and remove the protective layer; the protective layer is used to isolate pollutants from the wafer, and the protective layer is regularly removed and regenerated to avoid the accumulation of pollutants, thereby significantly improving the product yield.

The embodiment of the utility model discloses a power control double-path switching circuit for a double-path output power supply power supply and a power supply. The circuit comprises an optocoupler PC1A, a resistor R1, an optocoupler PC1B, a resistor R2, a resistor R3, a reference chip U1, a resistor R4 and a DCDC chip U2. An anode of the optocoupler PC1A is connected with VOUT1 + of the first output, one end of the resistor R2, a power input end Vin and an input pin VIN of the DCDC chip U2, and the other end of the resistor R2 is connected with one end of the resistor R1 and a reference electrode of the reference chip U1. According to the utility model, the second output is adjusted in a real-time feedback mode, the power of the second output is reduced when the power of the main output is too large in the first output and the second output, the output power of the first output is ensured, the reliable operation of the main output is realized, and the self-adaptive power distribution is realized by the two outputs. And falling or turn-off during transient power change of the main circuit is avoided.

The invention provides a hardware power supply over-voltage and under-voltage monitoring and fault self-locking circuit. The hardware power supply over-voltage and under-voltage monitoring and fault self-locking circuit comprises a reference power supply which is used for forming a voltage reference source; the over-voltage and under-voltage monitoring circuit is used for setting a monitoring threshold value for each stage of power supply voltage and carrying out over-voltage and under-voltage monitoring on the set monitoring threshold value; the isolation circuit plays roles of isolation and switching; the time delay circuit can control the over-voltage and under-voltage monitoring circuit to be invalid at the moment of electrifying and starting the equipment and when the whole board is under-voltage, and the over-voltage and under-voltage monitoring circuit is opened after the module is normally started; the self-locking circuit is used for controlling the power cutting circuit to act; and the power cutting circuit is used for directly cutting off the input end of the primary power supply when an overvoltage or undervoltage fault occurs, preventing a post-stage circuit device from being damaged and outputting an out-of-control signal. When the overvoltage or undervoltage fault occurs, the power cutting circuit can act immediately, effectively prevents the missing of the optimal protection time, can perform self power supply monitoring, does not need an additional power supply to monitor the primary power supply, and is high in reliability. And the cost is effectively saved.

The invention provides an electric auxiliary bicycle and an automatic power-off method thereof. The automatic power-off method is suitable for an electric-assisted bicycle including a battery module and includes the following steps. A charge / discharge state of the battery module is detected using a current sensing assembly of the battery module. And enabling or disabling an automatic power-off mechanism according to the charge-discharge state of the battery module. When the automatic power-off mechanism is enabled, whether to control the electric-assisted bicycle to enter a power-off state is determined according to the charge-discharge state of the battery module. Therefore, the electric auxiliary bicycle connected with the charger can be prevented from being turned on and turned off repeatedly due to idling.

The invention provides a cluster operation storage resource allocation method and device, equipment, a medium and a product, and is applied to the technical field of financial science and technology. The method comprises the following steps: performing data backup between servers based on a data intercommunication channel to obtain a database table related to operation data of each server; in response to the fact that the detection result represents that the server has a running fault, marking the server with the running fault as an isolation server, and migrating a program running by the isolation server to a backup server to run on the basis of the database table; in response to the detection result representing that all the servers in the server cluster operate normally, performing sub-table management on the database table to obtain a data sub-table corresponding to each server, and performing real-time data volume analysis on the data sub-table to obtain a data analysis result; and in response to the fact that the data analysis result represents that database storage of the server is overloaded, marking the server as an overload server, and storing overload data related to the overload server in a backup database.

This utility model relates to the field of auxiliary equipment technology for building construction, specifically an automatic detection and discharge control device for dewatering in building construction pits. It includes a dewatering well and a pumping component. The top of the dewatering well is equipped with a top plate. The pumping component includes a first pumping pipe, a second pumping pipe, a third pumping pipe, and three pumps. Each of the first, second, and third pumping pipes has a connecting pipe at its top. The bottom outer wall of the first pumping pipe has a connecting seat. Both the first and second pumping pipes have floating components and detection components. The top plate has a first mounting hole, a first sliding hole, and a second sliding hole. This utility model additionally includes a detection component that detects a preset height range within the dewatering well, rather than detecting the preset height itself. The pumps only stop working when the floating component moves out of the preset height range, avoiding repeated starting and stopping of the pumps.

The invention discloses a two-stage series return material device and temperature control method for a circulating fluidized bed boiler, comprising a first-stage return material device and a second-stage return material device connected in series; the second-stage return material device comprises a loosening chamber, a normal return material pipe and a bypass overflow pipe, a heat exchange surface is arranged as required inside the loosening chamber, the loosening chamber is connected to the furnace through the normal return material pipe and the bypass overflow pipe, and the inlet end of the first-stage return material device is connected to a cyclone separator. The device and the temperature control method realize the separation of the combustion process and the heat exchange process of the circulating fluidized bed boiler, fundamentally solve the problems of high-temperature corrosion, ash accumulation, slagging and the like of the heating surface in the furnace when the circulating fluidized bed boiler burns biomass fuel, and help to realize the high parameterization of the biomass fluidized bed boiler. At the same time, the working medium temperature is adjusted by adjusting the normal return material air volume; the bed temperature is adjusted by controlling the bypass return material air volume. In addition, the circulating ash can be returned to the furnace through the bypass overflow pipe, avoiding the emergency shutdown problem caused by the interruption of the circulating ash loop when the normal return material pipe or the heat exchange surface fails.

This application discloses a method for lifting a multi-spoke, multi-car, traction-free elevator in a single elevator shaft, belonging to the field of engineering technology, specifically relating to a method for lifting a multi-spoke, multi-car, traction-free elevator in a single elevator shaft. This application employs dividing an elevator shaft into three spokes: an ascending spoke, a descending spoke, and a stopping spoke. When the car on the ascending or descending spoke reaches the stopping floor, it performs a 120-degree turn. o The elevator shaft rotates horizontally to the stopping bay for passenger and freight transport. Multiple cars can be installed in each bay. Each car within the three bays operates independently along its respective guide rail. If a car malfunctions, it can be lifted to the top floor or a specific floor for repair, while other cars continue to operate normally. Similarly, if a problem occurs in one bay's passageway, the other bays can continue operating normally. Each car has an independent power drive system, using a three-axis drive and three-point braking system for control. This application includes the elevator shaft walls, elevator shaft doorway, upward bay car, downward bay car, stopping bay car, intermediate guide rail, side rail, transverse rotating rail, drive gear, and drive battery.