171results about How to "Reduce the number of starts" patented technology

The invention discloses a gas-fired water heating device, a gas-fired water heating system, a gas-fired water heater and a water heating device. The gas-fired water heating device comprises a heat exchanger provided with a water inlet and a water outlet, a burning device, a water pump and a control device; the burning device is used for heating water in the heat exchanger, the burning device has a first working mode with a first output power range and a second working mode with a second output power range, and the first output power range is smaller than 4 KW; the water pump is communicated with the heat exchanger, and the control device is connected with the burning device and the water pump; the gas-fired water heating device has a preheating circulation mode which meets the conditions that the control device controls the water pump to drive the water in the heat exchanger to flow and controls the burning device to be in the first working mode. By means of the gas-fired water heating device, the starting frequency of the burning device and the water pump can be reduced, sound made by the gas-fired water heating device can be reduced, and the temperature of outflow water can be kept stable.

The present invention relates to a special-purpose neck-reducing machine for high-pressure seamless gas cylinder manufacture. It includes holding device, feeding roller way, power device, forming device, medium-frequency heating furnace, hydraulic system, lubricating station, electric control box and base seat. Said invention also provides the concrete structure of above-mentioned every component, and provides their connection mode and working principle of said special-purpose neck-reducing machine.

The invention discloses a combined control method for performing station keeping and momentum wheel unloading based on an electric thruster. The thrust vector direction regulating range of the electric thruster is limited by the mechanisms and on-satellite mounting space thereof, when keeping the satellite orbit position or unloading the momentum wheel, the electric thrusting is incapable of guaranteeing that the thrust direction completely meets control requirements, and the component of the thrust on the vertical surface for controlling the needed force would become into the extra consumption for using the electric thruster to perform control. When performing station keeping, if the thrust vector cannot pass through the mass center of the satellite, the moment generated by the thrust would become into extra consumption; and in turn, when only performing the momentum wheel unloading, an operator needs to take the extra force effect into account, symmetrical ignition should be used to counteract the extra force, and the force effect becomes into extra consumption during the unloading period. The combined control method for performing the station keeping and momentum wheel unloading based on the electric thruster simultaneously performs satellite station keeping and momentum wheel unloading through reasonably selecting the thruster and regulating the thrust vector direction.

The invention relates to an intrusion detection method based on a fast k-nearest neighbor (KNN) algorithm. The method comprises the following steps: carrying out data pretreatment; receiving original data of intrusion detection; carrying out data pretreatment on the original data, wherein data pretreatment includes continuous data discretization treatment and character data digitalization treatment; reducing features; carrying out feature reduction on the pretreated data by adopting a mutual information-based feature reduction algorithm; detecting in a classified manner; carrying out classified detection on the data after feature reduction by adopting the fast KNN algorithm, and outputting the classified result. Compared with the prior art, the intrusion detection method has the advantages of high classification effectiveness, high classification accuracy and the like.

The invention provides a tunnel-before-station open-cut station construction method. A shield tunneling machine carries out tunneling in advance to pass through the station range, and the problems that a station is influenced by land requisition and demolishing and does not have construction conditions, and starting and receiving conditions cannot be provided for the shield tunneling machine are solved; and the aim that the sections can be cut through firstly, and then the station is constructed is achieved.

The invention discloses a method and device for controlling automatic start and stop of a pumped storage group. The method comprises the steps that firstly, according to a tracking historical running curve and a morrow mode scheduling curve of an electric power system, a morrow load prediction curve of the system is calculated; secondly, according to a morrow generation scheduling curve, the system creeping ability is calculated; thirdly, the morrow load prediction curve of the system is used for calculation of the demand of the system creeping ability; fourthly, a system creeping ability gap and a system power vacancy prediction value are calculated, and the number of starting times and the running mode of the pumped storage group are determined; finally, the pumped storage group is started or stopped to participate in regulation of the peak and the frequency of the electric power system. According to the method and device for controlling automatic start and stop of the pumped storage group, when the electric power system is in a crisis state, the pumped storage group is put into operation in time for solving the running crisis of a power grid, and therefore safe and stable operation of the electric power system is ensured; quick power response ability of the pumped storage group is introduced for the improvement on the frequency control quality of the electric power system; the number of starting times of the pumped storage group is reduced, so that the operation economical efficiency of the system is improved; the daily workload of dispatching personnel is lightened, manpower is saved, and cost is reduced.

The invention discloses an intelligent control system of greenhouse and aquatic product combined cultivation. The intelligent control system comprises a cultivation region and a planting region, wherein the cultivation region comprises a cultivation pool and the top space of the cultivation pool is closed; the top of the planting region is closed and a soil layer is arranged in the planting region; a cobblestone layer is paved under the soil layer; a supporting frame is arranged at the bottom of the cobblestone layer and a water collection region is arranged under the supporting frame; the water collection region is communicated with the cultivation pool by a bottom water conveying channel and water in the water collection region is conveyed into the cultivation pool by a first water pump; the planting region is also internally provided with a carbon dioxide sensor, a first sub-control signal chip microcomputer, indoor air circulating equipment and sprinkling irrigation equipment. The combined control system provided by the invention sufficiently utilizes the characteristic that oxygen is consumed in the cultivation pool and carbon dioxide is consumed in the planting region, the air is subjected to convection displacement, and the carbon dioxide in the planting region and the oxygen in the cultivation region are supplemented respectively; the CO2 fertilization amount in the planting region and the starting times of an aerator in the cultivation pool are reduced.

The embodiment of the invention discloses a calculation graph execution method, computer equipment and a storage medium, and the calculation graph execution method comprises obtaining a binary instruction executed by an artificial intelligence processor corresponding to a calculation graph according to an operation instruction of a fusion operator when a universal processor compiles the calculation graph with the fusion operator.

The invention relates to an air-conditioning refrigerating and heating integration machine. The air-conditioning refrigerating and heating integration machine comprises a cabinet, a case, a draught fan, an electronic main board controller and a temperature sensor. A heat preservation layer is arranged on the outer surface of the case. The top end of the case is provided with a case inside liquid injection opening. A circulating pipe, a refrigerating pipe and an electric heating element are arranged in the case. The sidewall of the case is provided with a circulating pipe outer joint, a circulating pipe connection joint, a first refrigerating pipe outer joint and a second refrigerating pipe outer joint. The circulating pump connection joint is connected with a liquid circulating pump which is connected with a liquid injection box. The liquid injection box is provided with an outer circulating pipe joint. The outer circulating pipe joint is connected with the circulating pipe outer joint through an outer circulating pipe. A refrigerating compressor unit is connected between the first refrigerating pipe outer joint and the second refrigerating pipe outer joint. The case and the circulating pipe are both filled with liquid. The refrigerating compressor unit and the refrigerating pipe are combined so that the liquid in the case can be refrigerated. The electric heating element can heat the liquid in the case. The air-conditioning refrigerating and heating integration machine can achieve the refrigerating and heating functions and is capable of saving energy, environmentally friendly and free of pollution and noise.

The invention relates to a single-refrigeration water-source heat pump grain cooling unit, which comprises a unit case. The unit is characterized in that an air mixing box is mounted at the front end of the unit case; an return air connecting pipe is mounted at a first inlet end of the air mixing case; a second inlet end of the air mixing box serves as a fresh air inlet end; a filter is mounted at an outlet end of the air mixing box; the coarse filter is connected with an inlet end of a cooler; an outlet end of the cooler is connected with an inlet end of an air collecting pipe; an outlet end of the air collecting pipe is connected with an inlet of a fan; an outlet of the fan is connected with an air supply connecting pipe and port; a refrigerating system is mounted at the back end of the unit case and comprises a compressor and a water-cooled condenser; the water-cooled condenser is provided with a water inlet interface and a water outlet interface; and a refrigerant outlet of the cooler is connected with an inlet of the compressor; an outlet of the condenser is connected with an inlet of the water-cooled condenser; and a refrigerant outlet of the water-cooled condenser is connected with a refrigerant inlet of the cooler. The single-refrigeration water-source heat pump grain cooling unit is energy-saving and efficient and stable in operation, and has the beneficial effects that the cost is lowered, continuous operation can be achieved, and the service efficiency is improved.

The patent of the invention discloses an urban road separating pedestrians from vehicles. All the components of the cross section of the urban road are not arranged on one horizontal plane, and are designed into concave or convex trapezoidal cross sections; green belts are designed into inclined planes meeting the head room of sidewalks to separating vehicles from pedestrians, so that motor vehicles driven on the bottom surfaces or (the top surfaces) and pedestrians walking on the top surfaces or (the bottom surfaces) have different ways and are not mutually interfered; pedestrian posterns or pedestrian footbridges are arranged at intersections, and pedestrian zebra crossings and pedestrian traffic lights are needless. The urban road separating pedestrians from vehicles avoids the phenomenon that the pedestrians and the vehicles are crowded in the same road, avoids traffic accidents of the pedestrians and the vehicles, provides convenience for the old, children, the disabled and other people in crossing the road, reduces damage to human beings caused by traffic pollution such as exhaust gas, noises, vibration and dust, and facilitates laying, repairing and maintaining various urban pipelines.

The invention discloses direct-connected non-negative pressure water supply equipment. The equipment comprises an inlet sluice valve, an inlet butterfly valve, an anti-backflow apparatus, an inlet pressure transmitter, a diaphragm three-way exhaust valve and other components, wherein the inlet pressure transmitter is connected between the inlet sluice valve and the inlet butterfly valve; a filter is connected between the inlet butterfly valve and the anti-backflow apparatus; a flow metering device is connected between the anti-backflow apparatus and a soft joint; a control valve is connected between the soft joint and a flow stabilizing tank; the diaphragm three-way exhaust valve and a sluice valve are connected with the flow stabilizing tank; a water intake pressure transmitter is connected between the sluice valve and a first butterfly valve; the first butterfly valve, a water pump, a check valve, a flexible joint and a second butterfly valve are connected in sequence; an air pressure tank is connected with the second butterfly valve; and an outlet sluice valve and an outlet butterfly valve are connected with the second butterfly valve. The equipment also comprises a pressure stabilizing pump which is connected with the air pressure tank. The equipment has the positive effects of reducing the starting frequency of the water pump and more effectively saving the energy.

The invention discloses a multifunctional intelligent bus. The bus is provided with a front door telescopic plate, a rear door telescopic plate, a driver control system, a plurality of telescopic seats and a plurality of passenger service machines. A telescopic mechanism of the front door telescopic plate and a telescopic mechanism of the rear door telescopic plate are connected with the edge of a front door pedal and the edge of a rear door pedal. The front door telescopic plate and the rear door telescopic plate stretch in the inclined downward direction till making contact with the ground. A telescopic mechanism of each telescopic seat is connected with the inner wall of a carriage on the side surface of the telescopic seat. After being contracted, each telescopic seat is closely attached to the inner wall of the carriage. A plurality of obstacle protrusions are arranged in the positions, below the telescopic seats, of the carriage ground. The driver control system comprises a main controller, a voice playing module, an input module, a telescopic plate driver, a telescopic seat driver and a first wireless communication module, and the voice playing module, the input module, the telescopic plate driver, the telescopic seat driver and the first wireless communication module are connected with the main controller. Each passenger service machine comprises a microprocessor, a matrix keyboard, a displayer and a second wireless communication module, and the matrix keyboard, the displayer and the second wireless communication module are connected with the microprocessor. The multifunctional intelligent bus can provide functions which cannot be provided by traditional buses, and the service capability of the bus is improved.

The invention discloses a test mechanism capable of changing the average incidence angle of a model in real time. The mechanism comprises a pitch oscillation mechanism, an upper seat plate, a supportcross beam, a linear guide rail, a linear guide rail sliding block, a guide rail seat, a straight rack, an average incidence angle drive motor, a gear, a sinusoidal generator base, an arc rack, an arcguide rail, and an arc guide rail sliding block. The linear guide rail sliding block and the bottom of the support cross beam are fixedly connected. The linear guide rail is arranged at the linear guide rail sliding block in a communication manner; the guide rail set and the linear guide rail are connected; the straight rack is connected to the bottom of the guide rail seat; one end of the straight rack is engaged with the gear connected with the average incidence angle drive motor; the arc guide rail sliding block is arranged on the inner side wall of the sinusoidal generator base; the arc guide rail is arranged at the arc guide rail sliding block in a communication manner; the arc rack is arranged on the outer side wall of the sinusoidal generator base and is engaged with the other endof the straight rack; and the arc guide rail and the upper seat plate are connected. Therefore, the measurement of dynamic aerodynamic characteristics in a pitch oscillation state in which the averageincidence angle of the aircraft changes in real time is realized.

The invention discloses a refrigerator control method. A refrigerator comprises multiple chambers and a compressor. The refrigerator has the energy-saving mode. The control method includes the following steps that firstly, the temperature and the operation time of each chamber are detected; secondly, when the difference delta T2 between the temperature of each chamber and the first preset value is detected to be lower than or equal to the second preset value T1 and after operation continues for a first preset time period, the compressor is suspended and the refrigerator enters the energy-saving mode; when the difference delta T2 between the temperature of any chamber and the first set value is detected to be larger than the second set value T1, the first step is repeated; thirdly, in the energy-saving mode, when the temperature difference delta T2 between the temperature of any chamber and the first set value is detected to be larger than the second set value T1, the refrigerator exits the energy-saving mode and at the same time, the first step is repeated. According to the refrigerator control method, the starting frequency of the compressor is reduced, and therefore the service life of the compressor is prolonged and energy consumption of the refrigerator is relieved.

The invention provides a high and low frequency fused wireless access method, which comprises the following steps of obtaining empirical distribution of high frequency channel gains and empirical condition distribution of low frequency channel gains under each high frequency channel gain condition through accumulative measurement of channel gains between a terminal and a high frequency base station and between the terminal and a low frequency base station; and utilizing the low frequency channel gains to select an opportunity for the terminal to start high frequency communication and the high frequency base station which is suitable for establishing a link with the terminal based on the obtained empirical distribution and the empirical condition distribution. According to the technical scheme, a process for determining whether to use the high frequency link can be optimized and the meaningless high frequency communication startup time and the energy consumption can be reduced.