72results about How to "Guaranteed power demand" patented technology

The invention provides a dual-cabin combined type spacecraft combined power supply system and method; the combined power supply system comprises an ascending cabin power supply system and a landing cabin power supply system; the ascending cabin power supply system comprises a first solar cell array, a first charging diversion adjusting module, a discharge adjusting module and a storage battery pack; the landing cabin power supply system comprises a second solar cell array and a second charging diversion adjusting module; the power supply objects of the dual-cabin combined type spacecraft combined power supply system comprise each load in the spacecraft; the loads comprise a full-adjusting bus load and a non-adjusting bus load of the ascending cabin, and a full-adjusting bus load and a non-adjusting bus load of the landing cabin. The dual-cabin combined type spacecraft combined power supply system and method can ensure power supply needs in spacecraft combination flights, and can ensure power supply needs in cabin independent flight.

The invention discloses a multifunctional off-grid type charging pile using methanol as fuel. The multifunctional off-grid type charging pile comprises a whole vehicle control system, a motor control system, an intelligent electric distribution system, an electric vehicle motor, a battery managing system, a fuel supply system, a fuel battery system, an intelligent charging pile, an emergency electric source system, and a power battery system, wherein the whole vehicle control system is connected with the motor control system, the battery managing system, the fuel battery system and the power battery system; the motor control system is connected with the intelligent electric distribution system and the electric vehicle motor; the intelligent electric distribution system is connected with the battery managing system, the fuel battery system, the intelligent charging pile, the emergency electric source system and the power battery system. According to the multifunctional off-grid type charging pile using methanol as fuel disclosed by the invention, alcohol hydrogen fuel which is free from pollution is used for solving the problems of the endurance of an electric vehicle, the charging of the electric vehicle and the electric supply of a communication base station, and the multifunctional off-grid type charging pile has the characteristics of being convenient to operate, short in starting time, long in charging time, low in occupied space, light in weight, low in noise, free from pollution and the like.

The invention discloses an off-grid railway traction power supply system and a regulation and control method. The off-grid railway traction power supply system comprises a catenary, a distributed power substation, an electrical split phase and an electrical split phase switch, wherein the output end of the distributed power substation is connected to the catenary; the electrical split phase is arranged on the catenary between the adjacent distributed power substations; the electrical split phase switch is arranged on the electrical split phase in parallel; the distributed power substation comprises a primary new-energy power generation device, a secondary controllable new-energy backup power supply and single-phase boosting transformers; the primary new-energy power generation device and the secondary controllable new-energy backup power supply are independent of each other, and are connected to the catenary through the respective single-phase boosting transformers. The off-grid railway traction power supply system achieves off-grid operation of a train and improves the stability and the reliability of traction power supply of a microgrid railway; the off-grid railway traction power supply system is applicable to a grid-free area, consumes clean energy on a spot, and achieves energy conservation and emission reduction and green sustainable development of rail transit; the off-grid railway traction power supply system conforms to electric transmission locomotives widely used in China railways and has strong applicability.

The invention discloses an electrified railway traction emergency guarantee power supply system and a control method. The system comprises a split-phase traction power supply system and an energy routing conversion system. The split-phase traction power supply system comprises multiple sections of traction transformation stations; each traction transformation station adopts an alternating phase sequence wiring method, a primary side takes electricity from a power grid, and a secondary side is connected with an independent power supply arm divided by transformation station electricity split phases to supply power to a traction load; subarea station electric split phases are arranged between the adjacent traction transformation stations; an internal energy conversion device modular unit is arranged at each traction substation in a bridging manner; an inter-energy conversion device modular unit is arranged at the electric split-phase position of a section post between every two adjacent traction substations in a bridging mode, and the internal energy conversion device modular units and the inter-energy conversion device modular units are subjected to unified energy management and coordination control through a central controller. The power supply reliability and flexibility of the traction power supply system in a severe service environment can be effectively improved.

The invention discloses a random encrypted physical information blockchain anti-counterfeiting system. The system comprises a fixed terminal, a 4G network and a mobile terminal, the fixed terminal comprises a central processor, an input end of the central processor is connected with an output end point of a data processing unit, an input end of the data processing unit is connected to an output end point of a data acquisition unit, and the data acquisition unit includes a fingerprint acquisition module, a face acquisition module and an iris acquisition module. According to the random encryptedphysical information blockchain anti-counterfeiting system, through the arrangement of the fingerprint acquisition module, the face acquisition module and the iris acquisition module, before an electric vehicle is used by a user, identity information of the user is acquired by the data acquisition unit at first, a data comparison unit is adopted for comparison to determine whether or not the useris an owner, if it is determined that the electric vehicle belongs to the owner, a red indicator light and a green indicator light are sequentially illuminated, if the user is not the owner, a buzzersounds, the electric vehicle is prevented from being stolen accordingly, and the economic loss caused to people is avoided.

The invention discloses a dual-mode electric excavator facilitating cable collection and a dual-mode driving method thereof. The electric excavator comprises an excavator body, a hydraulic system, a power output system, an energy system, a switching device and a programmable controller. The energy system comprises a work energy subsystem and a non-work energy subsystem, the work energy subsystem comprises a power supply cable, a cable collecting device and a via hole collecting ring, and the power supply cable inputs electric energy to an electric energy electric motor. The non-work energy subsystem comprises a storage battery set and a voltage transformation inverter, and a storage battery set inputs electric energy to the electric energy electric motor through the voltage transformationinverter. The switching device is used for the work energy subsystem and the non-work energy subsystem, one is selected for inputting electric energy to the electric energy electric motor, and the other one is stopped from inputting electric energy to the electric energy electric motor. The use rate, the climbing capacity, flexibility and climbing stability of energy can be improved. Use safety and bearing capacity of the power supply cable can be ensured, property is stable, and the excavator is safe and reliable.

The invention discloses a suspension height adaptive specialized robot suitable for the severe environment and an operating method. The suspension height adaptive specialized robot comprises a chassismain body and suspension shock-proof mechanisms, suspension height setting mechanisms and an electrical drive and control mechanism which are connected with the chassis main body, wherein the suspension shock-proof mechanisms and the suspension height setting mechanisms are both arranged two sets, the two sets of suspension shock-proof mechanisms are arranged on the two sides of the chassis mainbody correspondingly, and each set of the suspension shock-proof mechanism is connected with the electrical drive and control mechanism through one set of the suspension height setting mechanism. According to the suspension height adaptive specialized robot suitable for the severe environment and the operating method, independent height adjustment of the left and right two sets of suspension shock-proof mechanisms relative to the chassis main body is realized through the suspension height setting mechanisms, and power reversing and continuous outputting are guaranteed when the height adjustment is performed on the suspension shock-proof mechanisms; and by means of the arrangement of a posture sensing mechanism, posture change of the robot in advancing is sensed, reverse deduction of the road condition concave and convex situation is performed, the suspension shock-proof mechanism height is controlled and adjusted in real time, the stationarity is guaranteed, the obstacle jumping performance is improved, and the adaptability of a moving platform is improved.

The present invention discloses an urban intelligent regulation and control electrical power system. The system comprises a power station, the power station is connected with a plurality of area powersubstations through a power transmission network, a connection terminal of an electric regulation station is provided with a power regulation station, the area power substations are connected with aplurality of residential electricity consumption terminals and factory electricity consumption terminals through a supply network, the residential electricity consumption terminals are connected withresidential electricity consumption devices through a power distribution network, and the factory electricity consumption terminals are connected with factory electricity consumption devices through the power distribution network. Through adoption of the electric regulation station, the in-station electric quantity prediction model and the load prediction module in the power regulation station areconfigured to perform data extraction and statistics for electricity consumption prediction, power supply prediction, generation prediction, urban electricity consumption integration maximum load, power supply load, generation load, generator installed capacity prediction in the whole city so as to ensure that the power grid cannot exceed the maximum workload in the working process, and when theworkload approaches an early warning value, an early warning regulation module prompts workers to regulate the power supply of the urban power grid.

The embodiment of the invention discloses a charging reminding method and apparatus, a sound box and a storage medium. The method comprises the following steps: obtaining a connection state between the sound box and a wearable device, and obtaining the electric quantity information of the wearable device when the connection state is connected; and if the electric quantity information meets a preset threshold, generating a charging reminder. In the above technical scheme, the charging reminding of the wearable device is performed by the sound box, the technical problem of frequent charging reminding failure when a supervised user does not wear the wearable device at home or the supervised user carries a smart phone associated with the wearable device to go out in the prior art is solved, the electric quantity demand of the wearable device is ensured, the use efficiency of the wearable device is improved, and the user experience is enhanced.

The invention discloses a control method for the peak value power consumption of irregularly structural parallel calculation nodes and aims to dynamically control the peak value power consumption of irregularly structural parallel nodes to reduce the influence of the power consumption to the execution performance of the nodes as much as possible. The method in the technical scheme comprises the steps of firstly establishing an irregularly structural parallel calculation node peak value power consumption control system formed by a node power consumption description file, a node power consumption budget setting subsystem, a coprocessor load monitoring subsystem and a processor power consumption setting subsystem; recording related power consumption parameters of the nodes into the node power consumption description file; using the node power consumption budget setting subsystem to set a node power consumption budget, using the coprocessor load monitoring subsystem to query the real-time operation load Wco of a coprocessor and using the processor power consumption setting subsystem to set the power consumption threshold value of a processor. By adopting the control method for the peak value power consumption of the irregularly structural parallel calculation nodes, the peak value power consumption of the calculation nodes can be enabled not to exceed the power consumption budget set by a user and has small influence to the node performance, so the power consumption efficiency of the nodes is improved.

The embodiments of the invention disclose switching circuits and electronic equipment. a switching circuit comprises a first switch module, wherein a first end of the first switch module is electrically connected with the first end of the switching circuit, and a second end of the first switch module is electrically connected with the second end of the switching circuit; a voltage clamp module, wherein the first end of the voltage clamp module is electrically connected with the first end of the switching circuit; a first voltage division module, wherein the first end of the first voltage division module is electrically connected with the second end of the voltage clamp module, and the second end of the first voltage division module is grounded; and a control module, wherein an input end ofthe control module is electrically connected with the first end of the first voltage division module, and an output end of the control module is electrically connected with a control end of the firstswitch module. According to the technical scheme provided by the invention, a main power circuit automatic switch-off and switch-on control function can be realized, an auxiliary source is avoided, and the switching circuits and the electronic equipment are characterized by high economical efficiency and high reliability.

The invention discloses a power supply control system, which comprises an AC voltage power supply circuit, a storage battery power supply circuit, a switching module and an output circuit. The output end of the AC voltage power supply circuit and the output end of the storage battery power supply circuit are connected with the switching module; and the switching module is connected with the output circuit. The AC voltage power supply circuit comprises an anti-interference filter circuit, a transformer voltage-reduction circuit, a rectification and filtering circuit and a DC voltage regulator circuit, which are connected in sequence. The storage battery power supply circuit comprises a 24V battery module, an anti-interference filter module and a charging monitoring module, which are connected in sequence. The switching module is provided with a priority power supply mode. The storage battery power supply circuit power supply is the optimum power supply mode. The system is provided with the AC voltage power supply circuit and the storage battery power supply circuit; and in precision equipment or emergency equipment, the storage battery power supply circuit is used in priority, and power is supplied through the control power source, thereby guaranteeing normal operation of the system and power supply demand of the equipment.

The invention discloses a portable solar energy self-generating tent, Including transformers, the bottom of the rotating block is fixed with a fixing mechanism, comprises a top ring and a cover plate,the side wall of the top ring is rotatably connected with a plurality of first brackets, the outer wall of the sleeve is rotatably connected with a plurality of second brackets, the end of the firstbracket is movably articulated with the middle of the second bracket through a first hinge sleeve, the bottom of the second bracket is movably hinged with a third bracket through a second hinge sleeve, the lower outer wall of the sleeve is fixedly connected with a tent cloth, the bottom of the sleeve is movably connected with a top frame through the tent cloth, A battery is fixedly installed at the bottom of the top frame, A first solar panel and a second solar panel are movably connected between the adjacent first brackets, and the first solar panel and the second solar panel are movably articulated. The invention is convenient and firm to assemble and build, can be contracted and folded for storage and carrying, maintains the power supply demand in the tent by using the solar energy, andis easy to be popularized and applied.

The invention discloses a device and method for collecting dust in front of a magnesium ingot smelting reduction furnace. The device comprises a support, a smoke guide pipeline, a track, a dust collection trolley, a driving mechanism, a dust collection cover, a detection mechanism and a controller, wherein the smoke guide pipeline is arranged on the support and is positioned above the reduction furnace; a smoke suction window is formed in the top of the smoke guide pipeline; the track is laid on the smoke guide pipeline; the dust collection trolley is mounted on the track; a smoke passage is formed in the dust collection trolley; one end of the smoke passage faces the smoke suction window; one end of the dust collection cover faces inlets and outlets in front of the reduction furnace, andthe other end of the dust collection cover communicates with the smoke passage; the detection mechanism acquires smoke dust state information of each inlet and outlet; and the controller is used for firstly calculating the smoke dust concentrations, then sequencing all the smoke dust concentrations, selecting a dust collection point, finally driving the dust collection trolley to move to be abovethe dust collection point, enabling the dust collection cover to collect smoke dust at the dust collection point, and discharging the smoke dust through the smoke passage, the smoke suction window andthe smoke guide pipeline. By means of the device and method for collecting the dust in front of the magnesium ingot smelting reduction furnace, the smoke dust can be sucked away in time, and the dustcollection efficiency and the dust collection effect on the smoke dust are improved.

The invention discloses a downward evacuation rescuing method of a power transmission line in an electrified condition. The downward evacuation rescuing method comprises the steps of making self protection while waiting for a potential rescuing staff carried with a rescuing main rope and a safety short rope to arrive at a position above a trapped wire of a trapped person; waiting for the potentialrescuing staff to set an individual protection station above an operation and to connect the safety short rope; enabling a ground rescuing staff to hook a decline protector into a safety belt protection ring in advance, and locking a lock door; after the rescuing main rope end falls on the ground, making an anti-releasing tie, selecting a proper position to install the rescuing main rope on the decline protector, and performing self inspection and preparing protection preparation; waiting for the potential rescuing staff carried with the rescuing main rope end to decline to the position of the trapped person along the safety short rope by using the decline protector; enabling a main lock on the rescuing main rope end to be connected to a back part hanging point of the safety belt of the trapped person; waiting for the potential rescuing staff and the ground rescuing staff to cooperatively transfer the trapped person to the main rope; and enabling the ground rescuing staff to release the rescuing main rope at uniform velocity by using the decline protector to evacuate the trapped person to the ground to be taken over by other rescuing staffs on the ground so as to complete rescuing.

The invention relates to the technical field of vehicles, and provides a vehicle driving control method and system. The vehicle driving control method comprises the steps that request information reflecting the power requirement of a user for a vehicle and performance information reflecting the power performance of the vehicle are obtained; when the comparison result of the request information and the performance information shows that the power performance of the vehicle cannot meet the power requirement of a user for the vehicle, whether the vehicle meets the condition of activating a parallel operation mode or not is judged according to the request information and the performance information; and under the condition that the vehicle meets the condition for activating the parallel operation mode, the parallel operation mode of the vehicle is activated, so that the vehicle outputs power corresponding to the request information in the parallel operation mode. According to the invention, the vehicle can meet the larger power demand of a user.

The invention discloses a descending-accompanied evacuation and rescue method of a power transmission line under a live-line condition. The evacuation and rescue method comprises the steps of carryingtwo rescue main ropes to reach a position above a wire where a person is trapped by a rescue worker; arranging an upper operation protection station and a rescue rope passage by the rescue worker; transferring a body weight center to a part below the wire by the rescue worker; enabling a descending protector to descend a position above the trapped person and locking the descending protector by the rescue worker; hanging a self-protection rope at a hanging point of a back part of the trapped person, connecting a component force pull set between a main lock of the descending protector and the handing point of a safety belt of the trapped person, hanging the main lock of the descending protector and the back part hanging point of the safety belt of the trapped person, and removing a suspension protection rope of the trapped person; and additionally arranging a friction lock at a rope segment at a braking end of the descending protector, uniformly descending the rescue worker accompaniedwith the trapped person to ground by employing the descending protector, supporting by a worker on the ground, performing safety belt suspension trauma prevention and processing on the trapped personin W-shaped gesture, and completing rescue.

The invention discloses a multifunctional warning device. The multifunctional warning device comprises a protective cabinet, a solar photovoltaic panel and sensors, wherein the protective cabinet is internally provided with an intelligent control device and further provided with a power supply, a lamplight warning device and a voice warning device which are connected with the intelligent control device; a cabinet body is provided with a perspective panel and a voice diffusion port; light emitted from the lamplight warning device can directly pass through the perspective panel and is irradiated to the ground; a fixed plate is arranged on the back side of the solar photovoltaic panel, an angle regulator is mounted on the fixed plate, and the other end of the angle regulator is connected with the top end of a supporting column; the bottom end of the supporting column is arranged on the protective cabinet; the angle of the solar photovoltaic panel can be regulated along with rotation of the angle regulator; the sensors include the infrared induction sensor and the light control sensor; the infrared induction sensor is arranged on the fixed plate; and the light control sensor is arranged on the protective cabinet. The multifunctional warning device provided by the invention is used for conducting safety warning at intersections of traffic lines such as highways and railways and can implement 24-hour uninterrupted safety reminding instead of safety watch officers, and manpower and material resources are saved.

The invention belongs to the technical field of smart cards, and provides a smart card and a power supply switching circuit of the smart card. The power supply switching circuit of the smart card is connected with the load of the smart card, and comprises: a 7816 contact configured to electrically connect with a contact reader for communication; an NFC antenna configured to wirelessly communicatewith an NFC reader; a first voltage conversion unit which is connected with the 7816 contact and is configured to convert the contact voltage output by the 7816 contact into a first voltage; a secondvoltage conversion unit which is connected to the NFC antenna and configured to convert an antenna voltage output by the NFC antenna into a second voltage; and a switching unit which is respectively connected with the first voltage conversion unit and the second voltage conversion unit and configured to select the first voltage or the second voltage to supply power to the load.

The invention discloses an electric excavator driven by dual modes, and a dual-mode drive method thereof. The excavator comprises an excavator body, a hydraulic system, a power output system, an energy system, a switchover device and a programmable controller. The energy system comprises a working energy sub-system and a non-working energy sub-system, the working energy sub-system comprises an electricity supply cable, a cable winding device and a through hole collecting ring, and the electricity supply cable inputs electric energy to an electric energy motor. The non-working energy sub-systemcomprises a storage battery group and a variable-voltage inverter, and the storage battery group inputs the electric energy to the electric energy motor through the variable-voltage inverter. The switchover device is used for choosing one of the working energy sub-system and the non-working energy sub-system to input the electric energy to the electric energy motor and enable the other one to stop inputting the electric energy to the electric energy motor. According to the electric excavator driven by the dual modes, and the dual-mode drive method thereof, the electricity supply is carried out by virtue of a high power during working, and the electricity supply is carried out by virtue of stored electricity during non-working, so that the loss of electric quantity is reduced, and the userate of the energy is increased; and the excavator is stable in performance, safe and reliable, and capable of improving the maneuverability and flexibility.

The invention discloses an optimal external power receiving proportional algorithm for an ultra-high voltage accessing to a power grid and belongs to the technical field of power grid distribution. The algorithm comprises the following steps of: 1) determining an optimal power flow objective function; 2) determining an active balance constraint in a constraint condition; 3) determining a reactivebalance constraint in the constraint condition; 4) determining an output constraint of the active power in the constraint condition; 5) determining the output constraint of the reactive power in the constraint condition; 6) determining a voltage constraint in the constraint condition; 7) performing 'N-1' verification for a feasible solution of the optimal power flow; 8) performing transient stability check for the feasible solution of the optimal power flow; and 9) obtaining the optimal proportion of the electrical power capacity and the external electric capacity of a receiving-end power grid. According to the optimal external power receiving proportional algorithm for the ultra-high voltage accessing to the power grid, the problem of unstable external power proportion is solved, and thesafe and stable operation and power supply demands of the power grid are guaranteed by searching the optimal proportion and the optimal balance point of the external power accessing to the power grid,so that the comprehensive index is optimized.

The invention relates to the technical field of wharf intelligent point inspection, and discloses a wharf intelligent point inspection method based on an unmanned aerial vehicle robot. The method comprises the steps of: obtaining preset point inspection information of a preset point inspection position on a first preset route through an unmanned aerial vehicle robot, and transmitting the obtainedpreset point inspection information to a background server; performing preset point inspection standard comparison on the preset point inspection information corresponding to the preset point inspection positions through a preset point inspection processing flow of the background server; judging whether the state of the corresponding preset point inspection position in the preset point inspectioninformation of the preset point inspection positions is a preset abnormal state or not; and if yes, carrying out early warning on the preset point inspection position corresponding to the preset abnormal state. By the adoption of the method, intelligent point inspection can be conducted through the unmanned aerial vehicle robot, the structure is simple, efficiency and safety are achieved, the costis low, the point inspection reliability is high, inconvenience of manual point inspection is reduced, and meanwhile the safety of wharf equipment is guaranteed.