54results about How to "Fix startup issues" patented technology

An embodiment of the invention provides an application running device and a terminal device. The application running device comprises a scanning module, a starting operation detection module, a first safety detection module, a starting module, an event detection module and a second safety detection module; the scanning module is used for scanning a specified type of application in the current operation system; the starting operation detection module is used for detecting the starting operation of the specified type of application; the first safety detection module is used for performing the first safety detection on the running environment of the application before the application is started; the starting module is used for starting the application after a result of the first safety detection indicates that the running environment is safe; the event detection module is used for detecting a preset event in the running process of the application; the second safety detection module is used for triggering the second safety detection on the preset event in the application. According to the application running device and the terminal device, the safety of the running environment when the application is started is effectively ensured and the safety of the application in the running process is effectively ensured.

The invention discloses a pump-free organic Rankine cycle power generation system with compression refrigeration efficiency. The system comprises a supersonic steam-liquid two-phase flow jet pump, anevaporator, an expansion machine, an evaporation condenser, an expansion pressure reduction device, a cooler, a throttling valve, a compressor and a generator which are connected with one another to form an organic Rankine cycle and a steam compression refrigeration cycle. According to the pump-free organic Rankine cycle power generation system with the compression refrigeration efficiency, the supersonic steam-liquid two-phase flow jet pump is adopted to replace a working medium pump in a conventional system, the organic Rankine cycle is coupled with the steam compression refrigeration cyclethrough the evaporation condenser, cooling capacity is provided for the organic Rankine cycle through refrigerating capacity produced by the refrigeration cycle, and the condensation temperature of exhaust gas at an outlet of the expansion machine is reduced; and meanwhile, the expansion pressure reduction device is adopted to recycle pressure energy of the high-pressure liquid working medium in aloop in the steam compression refrigeration circulation, and the irreversible loss of the side throttling process of the refrigeration cycle is reduced.

An embodiment of the invention provides an application running method. The application running method comprises scanning a specified type of application in the current operation system; detecting the starting operation of the specified type of application; performing the first safety detection on the running environment of the application before the application is started; starting the application after a result of the first safety detection indicates that the running environment is safe; detecting a preset event in the running process of the application and triggering the second safety detection on the preset event in the application. According to the application running method, the safety of the running environment when the application is started is effectively ensured, the safety of the application in the running process is effectively ensured, the comprehensive safety protection is provided for the application, and the safe starting and running of the application can be achieved.

An embodiment of the invention provides an application running system. The application running system comprises a driving assembly and a process assembly; the process assembly is used for scanning a specified type of application in the current operation system; the driving assembly and or the process assembly are or is used for detecting the starting operation of the specified type of application; the driving assembly and the process assembly are used for performing the first safety detection on the running environment of the application before the application is started; the driving assembly is used for starting the application after a result of the first safety detection indicates that the running environment is safe; the driving assembly is used for detecting a preset event in the running process of the application; the driving assembly and the process assembly are used for triggering the second safety detection on the preset event in the application. According to the application running system, the comprehensive safety protection is provided for the application and the safe starting and running of the application can be achieved.

The invention discloses a vehicle fuel cell hydrothermal management system which comprises a first heating loop, a second heating loop, a third heating loop, a first cooling loop, a second cooling loop, a deionized water circulation system, a fuel cell stack and a control system; the first heating loop is a fuel cell stack heating loop, and the temperature of a fuel cell stack is increased by heating a cooling liquid through a PTC heating device; the second heating loop is a passenger compartment auxiliary heating loop, and the PTC heating device directly supplies heat to a passenger compartment; the third heating loop is a fuel cell passenger compartment heating loop, and the passenger compartment is heated through waste heat generated by work of the fuel cell stack; the first cooling loop is a radiator cooling loop, and heat generated by working of the fuel cell stack is transferred to the radiator through the heat exchanger and exchanges heat with the outside; and the second cooling loop is an air-conditioning auxiliary cooling loop and assists the heat dissipation of the fuel cell stack by utilizing phase-change heat transfer of a refrigerant of the air-conditioning system.

The invention discloses a method for constructing a distributed dynamic power flow computing system for energy management of an electric power system, belonging to the technical field of energy management of electric power systems. The method comprises the following steps of: setting a distributed computing coordination layer in a superior scheduling center, and setting a distributed computing subsystem in an inferior scheduling center. The system comprises three modules, i.e., a network communication module, a system management module and a computing management module, wherein the network communication module is realized by adopting a relatively mature CORBA (Common Object Request Broker Architecture) technology in the distributed field and meets the requirement of a coordinating layer and a subsystem on data exchange; the free entrance or exit of a subsystem is realized by the system management module; the subsystem can be used for controlling the allocation and the release of the internal memory of the coordination layer to solve the problem of starting of power flow computation; and the computing management module is used for realizing procedure management of power flow computation and solving the problem of transmission of link line boundary information during data exchange by forming a node mapping table of a link line local node number and a coordination layer node number. The method meets the requirement of practicability.

The invention provides a wind power generation system capable of being started at a low wind speed in an auxiliary mode. According to the wind power generation system capable of being started at the low wind speed in the auxiliary mode, the effect that a motor is started at the low wind speed is achieved, a control strategy can be adjusted in real time according to the wind speed, and therefore the output power of the motor can be effectively improved.

The invention discloses a graphite composite bipolar plate, which is prepared by mixing and pressing a graphite material, resin and metal powder into a plate material and then etching flow fields on two lateral surfaces, wherein the metal powder is aluminum or copper; the content of the metal powder in the bipolar plate is 1%-50%, preferably the content of the metal powder in the bipolar plate is 5%-15%; the fuel cell stack with the bipolar plate comprises the bipolar plate, a membrane electrode and end plates; the bipolar plate and the membrane electrode are sequentially and alternately stacked; the end plates are located at two ends of a laminated assembly; and when the stack is stored and started at not lower than -20 DEG C, the water content in the membrane electrode is not higher than 12mg/cm<2>. Compared with the prior art, the graphite composite bipolar plate has the advantages of being low in energy consumption, convenient to implement and the like.

The invention discloses a single-winding forward and reverse excitation auxiliary power supply circuit, and the circuit is characterized in that the device comprises a forward excitation energy storage module, a forward excitation voltage stabilization module, a reverse excitation energy storage module and a reverse excitation voltage stabilization module; the forward excitation energy storage module and the reverse excitation energy storage module share one secondary auxiliary winding; when the winding is in forward excitation, an energy storage element in the module is charged through the forward excitation energy storage module, and the forward excitation energy storage module outputs a forward excitation voltage. When the winding performs the reverse excitation, the reverse excitationenergy storage module charges energy to the energy storage element in the module, and the reverse excitation energy storage module outputs the reverse excitation voltage. According to the invention, the sufficient energy supply can be provided at the moment when the chip is started; the single-winding forward and reverse excitation auxiliary power supply is used, so that the transformer design difficulty and the product design difficulty are not influenced; the circuit is simple in structure and does not influence product reliability.

The invention discloses a contactless cold starting device of a proton exchange membrane fuel cell. The contactless cold starting device comprises a direct-current power supply, a microwave generator, a microwave output device and a microwave heater, which are connected in sequence, wherein the microwave heater is used for carrying out contactless microwave heating on the proton exchange membrane fuel cell locate at the outer part of the microwave heater. For not influencing a structure of the cell and a normal working state of the cell, a microwave heating principle is utilized and the fuel cell in a cold starting process is heated, so that on one hand, the structure of the cell does not need to be changed and the working performance of the cell is not influenced; on the other hand, the starting problem of the fuel cell under a lower temperature is solved better and a commercialization progress of the proton exchange membrane fuel cell is accelerated. Meanwhile, the single-ridge type microwave heater has an effective heating speed on a thin-sheet-shaped or linear object; moreover, the vehicle-mounted direct-current power supply can meet the power supply requirements of the microwave heater; the microwave heater has a small size and high microwave heating efficiency, and a whole cold starting system occupies a small space.

The invention relates to the technical field of PMSM (permanent magnet synchronous motor) position-sensorless control, especially a method for detecting the pre-operation state of a motor. The methodcomprises the steps: enabling a controller to obtain a three-phase current through a current sensor, converting the current of the motor into a two-phase current omega<-30 in a two-phase stationary coordinate system through Clark transformation, converting the current omega<-30 in the two-phase stationary coordinate system into currents Id_fbk and Iq_fbk in a two-phase rotating coordinate system through a Park converter; adjusting a D-axis current given quantity Id_Ref and a Q-axis current given quantity Iq_Ref through a PI adjuster; converting the Ud and Uq in the two-phase rotating coordinate system into a voltage Ualpha and Ubeta in the two-phase stationary coordinate system through inverted Park conversion; outputting six PWM signals through SVPWM according to a space voltage vector pulse width modulation method, and controlling the inverter; and enabling the inverter to convert a direct current into an alternating current according to the PWM signals outputted through SVPWM. The method provided by the invention is low in cost, is reliable in performance, is simple in implementation, and does not generate a big current in a detection process.

The invention discloses a variable-current power transmission system of a tidal current generator unit, and a working method thereof; the variable-current power transmission system comprises a plurality of water-turbine generator sets which are respectively and sequentially connected with a corresponding electric reactor and a three-phase full-controlled rectifier; an output end of each three-phase full-controlled rectifier is respectively connected with a storage battery and a three-phase full-controlled inverter; a back-to-back structure is formed by each three-phase full-controlled rectifier and each three-phase full-controlled inverter; and an output end of each three-phase full-controlled inverter is connected with an electrical load by an inductance filter and an alternating-current transformer. The three-phase controlled rectifier adopts a three-phase full-controlled space vector pulse width modulation (SVPWM) rectifier, and the invention has the advantages of reducing the number of devices on a carrier platform, simplifying the system and reducing the consumption.

The invention provides an MVR (Mechanical Vapor Recompression) system with external energy compensation and belongs to the technical field of industrial evaporation or concentration. The MVR system comprises a water inlet pump, a heat exchanger, a water inlet valve, a circulating water pump, an evaporator, a compensation heating device, an MVR steam compressor, a water outlet pump and the like. According to the MVR system, secondary steam is subjected to residual heat recycling by utilizing an MVR steam compressor and an external heat source is provided for startup and normal operation of an MVR steam compression and recycling system by adopting the compensation heating device, so that the startup problem of an existing MVR evaporation and concentration system is solved, the problem that the persistence is poor, caused by the fact that zero loss cannot be realized is solved, and disadvantages that raw steam is directly introduced so that steam with different pressure is inconvenient tomix and switch and the like are also overcome, so that the stability, persistence, reliability and efficiency of the operation of the MVR system are effectively improved. The whole system has the advantages of small size, low cost, less energy requirements, simplicity in operation, energy saving and environment protection and the like and is very suitable for being popularized and applied in a large scale.

The invention discloses a capacitive ignition device with speed limit and easy start functions. The capacitive ignition device comprises a charging circuit, a silicon controlled rectifier S1, a triggering circuit, a speed limit circuit and an ignition coil T1. The charging circuit is used for charging an ignition capacitor and comprises a charging coil L1, a diode D1, a diode D2 and the ignition capacitor C4; the silicon controlled rectifier S1 is used for controlling the ignition capacitor C4 to be charged or discharged, the cathode of the silicon controlled rectifier S1 is grounded, and the anode of the silicon controlled rectifier S1 is connected to the input end of the ignition capacitor C4; the triggering circuit is used for control the discharging time of the ignition capacitor C4, is connected with a control electrode of the silicon controlled rectifier S1 and controls connection and cut-off of the silicon controlled rectifier S1; the speed limit circuit is used for controlling the discharging time of the ignition capacitor C4 in high-speed running, is connected with the control electrode of the silicon controlled rectifier S1 and controls the connection and cut-off of the silicon controlled rectifier S1; the ignition coil T1 comprises a primary coil L3 and a secondary coil L4, and the secondary coil L4 outputs high voltage. The capacitive ignition device is stable in circuit, solves the problem of the startability of a cold engine and avoids the phenomena of high speed, overspeed and galloping.

The invention relates to a flexible starting device of a stirring type wind heater. The device comprises the heater, and a fan, a stirring blade is arranged in a stirring bucket of the heater, the stirring blade is connected to the fan outside the stirring bucket through a transmission shaft and a coupler, a hydrodynamic coupling is connected between the transmission shaft and the coupler, throughthe hydrodynamic coupling, the starting property of the heater is improved, in order to achieve flexible starting of the wind heater, the hydrodynamic coupling is adopted, the hydrodynamic coupling is arranged between the heater and the coupler, through the hydrodynamic coupling, the starting torque of the heating system is obviously reduced, the heating system is started under the condition thatthe wind is weak, and can be normally used, and the starting problem of a wind machine under the low wind speed is solved.

Provided are a device, starting method thereof, and computer storage medium, the device comprising a central processing unit (CPU), an interface, and a double data rate (DDR) synchronous dynamic random access memory; the interface is configured to connect to a host device to acquire from the host device a system file capable of starting and operating a device, and transmit the system file to the DDR; the DDR is configured to store the system file; and the CPU is configured to operate a system via the system file stored in the DDR.

The invention provides a decentralized internet distribution system, which comprises a centralized input port, a centralized database communicating with the centralized input port and a regularizationprocessing module, and further comprises an intelligent contract initialization system and a decentralized node chain area; the centralized input port comprises a plurality of distribution target input interfaces, and each distribution target input interface is used for inputting specific coded information of a type of distribution targets; and a plurality of distributors connected with the distributed cloud access the decentralized node chain area, establish distributor data chain nodes in the decentralized node chain area after successful access, and feed back the distributor data chain nodes to the broadcast and contract module verification module. According to the technical scheme, centralized data source input and starting problems are combined with a decentralized block chain technology, so that the problems of starting of a distribution system from a data source and subsequent continuous data source input are effectively solved.

The invention discloses a zero cold water system for avoiding false start of a water heater. The zero cold water system comprises the water heater, a water inlet pipe, a water outlet pipe, a plurality of water using points connected with the water outlet pipe, and a cold water pipe connected with the water using points, wherein the water inlet pipe and the water outlet pipe are connected with the water heater, a first one-way valve enabling the water outlet pipe to be communicated with the cold water pipe in a one-way mode is arranged at the water using point farthest from the water heater, the water outlet pipe, the cold water pipe, the water inlet pipe and the water heater form a circulation loop, and the cold water pipe is connected with an intelligent closestool. The zero cold water system is characterized in that a water tank of the intelligent closestool is a pressurizing water tank, and a flow limiting valve is arranged at the water inlet end of the pressurizing water tank; and the water outlet instant flow of the pressurizing water tank can reach 20 L/min or above, and the maximum water flow of the flow limiting valve does not exceed 7 L/min. The pressurization water tank and the flow limiting valve are adopted to prevent the gas water heater from being started by mistake on the basis that a user can flush the intelligent closestool cleanly, and the structure is simple and reliable.