40results about How to "No need to increase capacity" patented technology

The invention provides a power supply method and a power supply device for an electronic device and the electronic device. The electronic device comprises a power supply module, a charging module, a first energy storage module, a second energy storage module and a control module, wherein the power supply module comprises an external energy conversion module for converting external energy into electric energy; the charging module is used for charging by using the converted electric energy; the first energy storage module and the second energy storage module are used for storing the converted electric energy; and the control module is used for controlling both the first energy storage module and the second energy storage module in a charging state or the first energy storage module in a charging state while the second energy storage module in a power supply state, when the second energy storage module is in a charging state, the charging module or the first energy storage module charges the second energy storage module, and when the voltage of the first energy storage module is higher than that of the second energy storage module, the first energy storage module charges the second energy storage module. The technical proposal can reduce the dependence of the electronic device on a battery and achieve the effects of energy conservation and environmental protection.

The invention relates to a method and a device for adding table items, and a method, a device and a system for processing the table items, wherein the method for adding the table items comprises the following steps of: receiving a table item adding request, wherein the table item adding request carries a first keyword and an index of one table item requesting to be added; and querying whether a barrel corresponding to the first keyword in a random access memory (RAM) is full or not, if so, adding the first keyword and the index in a ternary content addressable memory (TCAM). The method for adding the table item is used for adding the table item generating conflicts because the barrel in the RAM is full in the TCAM so as to ensure that all table items can be added successfully; the capacity of the RAM does not need to be increased so that the RAM resource is saved and the storable table item capacity is extended under the condition that the RAM resource is constant.

The present invention provides a battery control system and a vehicle system with the battery control system. Each module includes a circuit breaking section configured to control an energization state and a circuit breaking state of the battery in such a manner that during discharge, the circuit breaking sections of a certain number of modules are sequentially activated to halt discharge from each of the certain number of modules for a predetermined halt time, while an amount of discharge from remaining modules is increased to complement a decrease in the amount of discharge resulting from the halt of discharge from the certain number of modules. The battery control system enables as large an amount of charge and discharge to be carried out as possible while allowing each battery to complete a target life, without the need to increase the capacity of the battery.

The invention belongs to the technical field of automobile components and provides an automotive electric appliance control method. The automotive electric appliance control method includes detecting electric quantity of a storage battery; controlling primary electric appliances, secondary electric appliances and tertiary electric appliances to turn off according to the electric quantity of the storage battery, and giving prompt signals; judging whether to start to charge the storage battery or not according to the prompt signals; judging whether charging the storage battery is started or not, and if yes, recording charging time and detecting the electric quantity of the storage battery; according to the electric quantity and charging time of the storage battery, judging whether to stop charging or not and controlling the prompt signals to cut off. The automotive electric appliance control method has the advantages that the primary electric appliances, the secondary electric appliances and the tertiary electric appliances are controlled to be turn on or off and whether the storage battery is charged or not are controlled according to the electric quantity of the storage battery; the electric quantity of the storage battery can be allocated reasonably, and the requirements of continuously load increase can be met without increasing power of an electric generator and capacity of the storage battery, so that production cost is lowered, fuel consumption is reduced and energy resources are saved.

The invention provides an inverter current compensation control method for a neutral point clamped three-level topological structure. The inverter current compensation control method for the neutral point clamped three-level topological structure comprises the following steps that S1, the load current and the load voltage of each phase are detected; S2, standard sine signals 2sin(omegat-2mpi/3) and 2sinomegat and standard cosine signals 2cos(omega t-2mpi/3) and 2cosomegat according to the load voltage of each phase; S3, the currents obtained in the step S1 and the standard sine signals and the cosine signals obtained in the step S2 are multiplied, filtering is conduced by a low-pass filter with cutoff frequency higher than two times of fundamental frequency, and then the direct-current component of the load current of each phase is obtained; S4, the amplitude value of a compensating current object of the load current of each phase is calculated according to a calculation matrix and the direct-current component, obtained in the step 3, of the load current of each phase; S5, the amplitude value of each compensating current object and the phase of the load current of each phase are multiplied, so that the ideal currents iA, iB and iC of all the phases are obtained; S6, the load currents of all the phases are subtracted from the ideal currents iA, iB and iC of all the phases, so that order signals ia, ib and ic of the compensating currents of all the phases are obtained.

The invention relates to the technical field of an inversion power supply, and discloses a high-performance inversion power supply having a single-phase asynchronous motor soft starting function. The high-performance inversion power supply mainly comprises a current limiting ring and a soft starting control module, wherein the inversion power supply acquires an error amount between an AC output current effective value and a current limiting given value, an output control factor is obtained by the current limiting ring, output voltage amplitude given quantity is obtained by subtracting the output control factor and AC output voltage effective value feedback quantity from AC output voltage amplitude quantity, the output voltage value is reduced after the output voltage amplitude given quantity is subjected to three-loop control, the soft starting control module is used for detecting an input signal of the inversion power supply and sending a control signal to a controller of the inversion power supply when the input voltage signal reaches a set value, and the controller is used for controlling amplitude of a sine wave signal according to the control signal so that the fundamental wave of the sine wave is continuously risen to 1 from 0 and the output AC voltage is gradually risen. The high-performance inversion power supply has the advantages that a circuit structure is simple and reliable.

The invention relates to converter equipment in a photovoltaic power generation system, and in particular relates to an air cooling heat-removal system of a photovoltaic inverter cabinet. The air cooling heat-removal system comprises a power unit cabinet body and an electric reactor cabinet body which are connected in parallel and respectively and internally provided with a power unit and an electric reactor, wherein each electric reactor body is arranged at the lower part of the electric reactor cabinet; a general air inlet is formed in the lower part of a front panel of the electric reactor cabinet body; a lateral air vent is formed in the middle part of a partition between the electric reactor cabinet body and the power unit cabinet body and is connected with an air outlet in the top of the power unit cabinet body through a cooling air duct located in the power unit cabinet body; the air outlet is provided with a main air exhaust fan; and an air admission fan which supplies air inwards is arranged at the inner side of the general air inlet. The air cooling heat-removal system of the photovoltaic inverter cabinet, provided by the invention, can be applied to high altitude areas without increasing the capacity of equipment parts, so that main components of the inverter cabinet applied to high and low altitude areas can be exchanged, thereby reducing the manufacturing cost and the maintaining cost.

The invention relates to a particle filtering and regenerating device for a bus. The particle filtering and regenerating device has a simple structure, small size, low manufacturing cost, and convenience in installation, and comprises a shell made of stainless steel materials, and a ceramic filter for filtering particles in tail gas discharged by the bus, wherein an air inlet pipe connected with an exhaust port of an engine is arranged on the front end of the shell; an exhaust pipe is arranged on the rear end of the shell; a bypass pipe for discharging the particles is arranged on the shell; a butterfly valve is arranged on the bypass pipe; and a pneumatic element, an electromagnetic valve and a controller for controlling the electromagnetic valve are arranged. When the bus is parked in a fixed site, a connector on the end part of the exhaust pipe is connected with a compressed air source which is outside the bus and is used for regenerating, the compressed air is injected to drop the particles from the filter, the dropped particles enter into a particle collection device outside the bus through the bypass pipe, and the size of the particle collection device corresponds to the size of a silencer on the bus, so that the modification is convenient.

The invention provides a mirror image file repairing method and device, AP equipment and a network system. The method comprises the following steps: after determining a damaged paging file in a self-stored mirror image file, constructing a mirror image repair request message; wherein the mirror image repair request message comprises an equipment model, an equipment version number and a serial number of the damaged paging file; broadcasting the mirror image repair request message, so that other AP equipment in the network system receives the mirror image repair request message; receiving a repair data response message sent by other AP equipment; other AP equipment and the AP equipment have the same equipment model and the same equipment version number; the repair data response message comprises paging file data corresponding to the serial number of the damaged paging file; and repairing the mirror image file based on the paging file data. By means of the mode, workers can be prevented from going to the site to replace the equipment, the reliability of the AP equipment is enhanced, meanwhile, the capacity of a storage does not need to be increased, and the hardware cost of the AP equipment is saved.

The invention discloses a power driver circuit of a laser and the laser. In a power driver circuit, a first power unit and a second power unit are connected in parallel to a working module outside the circuit, and a first current negative feedback control loop is formed by a first current detection unit, a first comparison unit, a first control unit and the first power unit; and the second current detection unit, the third comparison unit, the third control unit, the second comparison unit, the second control unit and the second power unit form a second current negative feedback control loop. Feedback regulation is carried out through the first current negative feedback control loop and the second current negative feedback control loop, and a first path of current flowing through the first power unit and a second path of current flowing through the second power unit are controlled, so that the first path of current and the second path of current are close to set current, and then the total current flowing through the working module is controlled. The power driver circuit has the advantages of low power consumption and long service life.

One or more embodiments of the present specification provide an Internet data detection method, apparatus and device, and a computer readable storage medium. In one embodiment, the Internet data detection method comprises the following steps: acquiring Internet data to be detected; inputting the Internet data into a first data detection model stored in a service system server to obtain a first detection result of the Internet data; under the condition that the first detection result is smaller than a preset detection value, sending a data detection request used for detecting the Internet datato a far-end server, so that the far-end server inputs the Internet data into a second data detection model stored in the far-end server in response to the data detection request to obtain a second detection result of the Internet data; and receiving a second detection result fed back by the far-end server, and taking the second detection result as a target detection result of the Internet data.

The invention discloses a method to adjust actual time of electronic installation, which is characterized by the following: setting the electronic installation as a non-volatile accumulator, a chronogenesis device, a electric source and a microprocessor; exporting a actual time with the chronogenesis device; powering off the electronic installation; adjusting the actual time; recording the actual time with the microprocessor; using as a power off time in the non-volatile accumulator; supplying electric energy to the chronogenesis device with the electric source when power off and unexhausted electric energy; refreshing the actual time with the chronogenesis device continuously; making the actual time later than the power off time; controlling the chronogenesis device with the microprocessor; setting the actual time to a predetermined time when the electronic device powder off and exhaust the electric energy; making the power off time later than the predetermined time; setting the electronic installation in the course of open; comparing the actual time and power off time.