257results about How to "Solve the problem of high power consumption" patented technology

The invention provides a system and a method for expanding a mobile communication function of portable terminal electronic equipment. The system provided by the invention consists of first expansion equipment, second expansion equipment and the portable terminal electronic equipment; the portable terminal electronic equipment is connected with the first expansion equipment in a WIFI (Wireless Fidelity) manner; the second expansion equipment is connected with the first expansion equipment in a Bluetooth manner; the first expansion equipment is connected with a mobile communication wireless network through a communication module I; and the functions of mobile communication, short message receiving and sending, and mobile networking of the portable terminal electronic equipment can be realized by virtue of the entire system. The system and the method provided by the invention have the advantages as follows: the portable terminal electronic equipment with a WIFI function can carry out the mobile communication anytime and anywhere, send and receive short messages and get on an internet in a mobile manner; a method for controlling a low-power-consumption state and a normal working state of the expansion system by a user side according to demand can be realized, so that the problem of large power consumption is solved, and a standby state with lower power consumption and longer time can be realized.

The invention discloses an afterheat recovery system and an afterheat recovery method of dry granulating liquid slag. The system comprises a granulating cabin, a moving bed and an afterheat recovery system, the inner surface of the granulating cabin is provided with a granulating cabin water cooling wall, the center of the top of the granulating cabin is provided with a slag pipe, the slag pipe extends into the granulating cabin, the lower part of the tail end of the slag pipe is provided with a centrifugal granulator, the centrifugal granulator is connected with a motor arranged at the lower part of the centrifugal granulator, the lateral side of the centrifugal granulator is provided with an air supply pipeline, an annular air opening is formed between the centrifugal granulator and the air supply pipeline, the lower part of the granulating cabin is provided with the moving bed, the inner surface of the moving bed is provided with a moving bed water cooling wall, the top of the moving bed is provided with an air outlet, the bottom of the moving bed is provided with a slag discharge device, an air inlet device is arranged above the slag discharge device, the afterheat recovery system comprises a primary dust remover, an afterheat boiler, a secondary dust remover, an exhaust fan and a chimney which are connected in sequence, and the primary dust remover is connected with the air outlet arranged at the top of the moving bed. The system and the method effectively solve the problems of heat recovery and furnace slag granulation of equipment such as a blast furnace.

The invention discloses an electric appliance as well as a control circuit and a control method thereof. The electric appliance control circuit comprises a switching circuit, a main power supply, an auxiliary power supply, a main chip and a power switching circuit, wherein the main power supply is connected with an electric supply through the switching circuit, and used for energizing when the switching circuit is turned on and de-energizing when the switching circuit is turned off; the main chip is connected with the switching circuit, and used for controlling the switching circuit to be turned off when the electric appliance is standby and controlling the switching circuit to be turned on when the electric appliance is started; and the first end of the power switching circuit is connected with the main power supply, the second end of the power switching circuit is connected with the auxiliary power supply, the third end of the power switching circuit is connected with the main chip, and the power switching circuit is used for controlling the auxiliary power supply to supply power to the main chip and disconnecting the main power supply with the main chip when the switching circuit is turned off, and controlling the main power supply to supply power to the main chip when the switching circuit is turned on. Through the invention, the power consumption of the electric appliance in a standby state is reduced to approximate zero watt, thereby curbing the energy waste of the electric appliance in a standby state.

The invention relates to a flexible nanofiber-based electronic skin as well as a preparation method, and belongs to the field of flexible sensors. The flexible nanofiber-based electronic skin is characterized in that the electronic skin is prepared by attaching two layers of flexible nanofiber membranes which are treated by conductive treatment, and the thickness of the flexible nanofiber membrane is 30-500[mu]m, wherein at least one surface of the two surfaces which are attached is provided with micro groove or micro protrusion structures. The electronic skin solves the problems of high working voltage, large power consumption and low sensitivity in prior art; the electronic skin has the effects of sensitive layers and conductive electrodes with a single structure and a simple process, and the electronic skin can be used for industrial production; the electronic skin has good biocompatibility and can be well integrated with a human skin, and is convenient for constructing a wearable device; a unique nanostructure is applied to the electronic skin, so that the electronic skin has higher sensitivity and better stability; and the whole device is light, small, smart and is convenient for carrying.

The invention relates to a wireless sensing network technology, particularly relates to a low-power-consumption embedded type wireless sensor network node device, and solves the problems of the conventional wireless sensor network node device that the power consumption is great, the conventional wireless sensor network node device cannot be embedded into an engineering structure body and the function is single. The low-power-consumption embedded type wireless sensor network node device comprises a sensor control module, a central comprehensive control module, a wireless radio frequency module and a power supply managing module. According to the low-power-consumption embedded type wireless sensor network node device disclosed by the invention, the problems that the power consumption is great and the wireless sensor network node device cannot be completely embedded and distributed when the wireless sensor network node device is deployed in the engineering structure body in a large scale are effectively solved; the problems of volume and data collection and treatment, and communication protocols and the like are solved; and under the preconditions that the safety and the reliability of data are ensured and a network node has good robustness, a wireless sensing network is used for carrying out remote monitoring on physical quantities inside the structure bodies including bridges, large-sized reservoir and dams, highway roadbeds, buildings and the like, so that the networked, intelligent and digital monitoring is realized.

The invention discloses a display refreshing method and system for 3D applications. The method comprises the following steps: displaying the last rendering result through storing a 3D application and generating a corresponding source texture according to the last rendering result; calculating a rectangular area of the screen change between the current screen display and the last screen display of the 3D application; setting the offset size of a view port according to the rectangular area, recalculating a projection matrix, drawing the rectangular area and generating a corresponding updating texture according to the drawing result; mixing the updating texture with the source texture, drawing to the view port, and updating and displaying the screen display so as to complete the display refreshing of the 3D application. According to the display refreshing method and system for 3D applications, only the area which is changed in allusion to a screen display interface is refreshed, so that the CPU occupancy rate is greatly reduced and the 3D scene rendering efficiency is remarkably improved.

The invention discloses a variable optical attenuator-based bus current detection method and current transformer equipment. The method comprises the following steps: generating monitoring light and sensing light by a monitoring light source and a sensing light source respectively, wherein the sensing light passes through a variable optical attenuator to generate an attenuated optical signal, is subjected to photoelectric conversion with the monitoring light respectively and then is input into a single-chip microprocessor for algorithmic processing so as to generate a secondary current signal; meanwhile, acquiring a bus current signal on a high-voltage line by using a primary current sensor, and differentiating, filtering and amplifying with feedback electric signals of an input signal and an output signal of the variable optical attenuator to generate a new driving signal for driving the variable optical attenuator. The equipment comprises the monitoring light source, the sensing light source, the variable optical attenuator, two wavelength division multiplxers, two photoelectric receivers, the single-chip microprocessor and a photoelectric feedback control module, wherein the photoelectric feedback control module comprises two photoelectric receivers, a differential module, a filter circuit and an amplifying circuit.

The invention discloses a folding hopping robot comprising a stand, a hopping and rolling multiplexing mechanism, a hopping angle regulating mechanism, a driving mechanism, a sensing unit, a communication control unit and a power module, wherein the hopping and rolling multiplexing mechanism, the hopping angle regulating mechanism, the driving mechanism, the sensing unit, the communication control unit and the power module are all arranged on the stand; the hopping and rolling multiplexing mechanism comprises a tension spring, a right wheel, a left wheel, synchromesh gears, a right leg, a left leg and synchromesh gear installation parts; and the driving mechanism comprises a rolling driving mechanism and a hopping driving mechanism, the rolling driving mechanism is connected with the right wheel and the left wheel, and the hopping driving mechanism drives the right leg and opens or folds the left leg and the right leg through the synchromesh gears. In the invention, rolling and hopping are combined. The combination of hopping and rolling movement modes ensures that the robot can adapt to more complicated terrain environments; and limit electric quantity of the robot per se can be effectively saved by adopting a rolling movement mode on a smooth road, thereby the problems of single movement mode and large electricity consumption of the current hopping robot are solved.

The invention relates to a high-luminance LED strobe lamp and belongs to the technical field of light source control. The high-luminance LED strobe lamp comprises a strobe/burst-strobe synchronous detection circuit. A port of a wiring terminal J2 in the circuit is respectively connected with a positive electrode and a negative electrode of a transient voltage suppression diode TVS1; the positive electrode of the transient voltage suppression diode TVS1 is connected in series with a diode D2 and then connected with an emitter of a triode Q1, and meanwhile the positive electrode of the transient voltage suppression diode TVS1 is connected with a resistor R8 in series and then connected with a base of a triode Q3; a base of the triode Q1 is connected with a resistor in series and then connected with a base of a triode Q2, both a collector of the triode Q1 and a collector of the triode Q3 are connected with an input port of a photoelectric coupler U2, and an output port of the photoelectric coupler U2 is connected with an input port of a master controller; a collector of the triode Q2 is connected with the base of the triode Q3, and an emitter of the triode Q2 and an emitter of the triode Q3 are connected and meanwhile grounded. A strobe control circuit controls strobe and burst strobe of the LED lamp, and thus the utilization rate of the light source and the quality of a snapshot photo are improved.

The invention provides a residual heat utilization system of a fuel cell and a control method. The residual heat utilization system of the fuel cell comprises a controller, a first pipeline, a first temperature sensor, a water pump, a first three-way valve, a second three-way valve, a second pipeline, a third three-way valve, a third pipeline, a second temperature sensor, a fourth three-way valve, a fourth pipeline, a heat sink and a warm wind collection device, wherein a first end of the first pipeline is connected with an electric stack of the fuel cell, the first temperature sensor and the water pump are arranged on the first pipeline, the second temperature sensor is arranged on the third pipeline, a first end of the fourth three-way valve is connected with the electric stack of the fuel cell by the fifth pipeline, the heat sink is arranged on the fourth pipeline, and the warm wind collection device comprises an electric heater PTC (Positive Temperature Coefficient) group and a heat exchanger arranged on the third pipeline. With the residual heat utilization system of the fuel cell and the control method, provided by the embodiment of the invention, the working temperature of the electric stack of the fuel cell is ensured, residual heat generated by reaction of the electric stack of the fuel cell is effectively used for warm wind heat supply in a compartment, and the residual heat utilization system is energy-saving and environmental-friendly, is simple in structure and low in limitation of a applicable region.

The present invention provides a signal control circuit, a terminal device, and a signal control method. The signal control circuit includes a radio frequency transceiver, a power amplifier, a duplexer, a first antenna, and a second antenna. The signal control circuit further includes a switch module. A first contact point of the switch module is connected to a primary receive of the radio frequency transceiver, a second contact point of the switch module is connected to a first end of the duplexer, a third contact point of the switch module is connected to a diversity receive of the radio frequency transceiver, and a fourth contact point of the switch module is connected to the second antenna. A radio frequency transmitting end of the radio frequency transceiver is connected to an input end of the power amplifier, and an output end of the power amplifier is connected to a second end of the duplexer. In a first state, the first contact point and the second contact point are electrically connected, and the third contact point and the fourth contact point are electrically connected. In a second state, the first contact point and the fourth contact point are electrically connected, and the third contact point and the second contact point are electrically connected. In the present invention, power consumption of the terminal device can be reduced.

The invention discloses an intelligent well lid. The intelligent well lid comprises a well lid body and further comprises a test device, a cover plate and hook holes, wherein the test device is arranged on the lower side of the well lid body and comprises an instrument box, an instrument box upper cover, a battery box, a master control printed board, a gas sensor, a wireless communication device and a first sealing ring. The intelligent well lid further comprises a first anti-theft device and a second anti-theft device. The intelligent well lid has the advantages that the monitoring speed of a natural well is increased, the wireless communication device is internally integrated in the well lid, the maximum signal receiving strength is obtained, and data communication reliability is improved greatly; the compact large-capacity battery box is adopted, and the problem that a detection device is large in power consumption is solved; the devices on the well lid are arranged compactly, firmly and conveniently, and the anti-explosion function of the overall well lid is achieved; all the devices are integrally arranged on the well lid, and maintenance of the devices is facilitated for operation staff; the double-anti-theft devices are adopted for the well lid, and the difficulty in opening the well lid illegally is further increased.

The float sealing structure for water-saving automatic washer includes sealing hood, tray, draining cavity comprising outer tub, sealing hood and tray, and sealing part. It features that the sealing part is made of elastic material and has through hole in the center, outer edge and inner edge around the through hole. Of the edges, one is fixed and connected hermetically with the sealing surface, and the other is suspended with one protrudent lip for pressing the sealing surface under the action of buoyancy. The central through hole of the sealing part is jacketed onto the dewatering shaft, and the sealing part has at least one ring water pressure action surface to form end sealing under the action of the buoyancy of the water draining cavity.

The invention relates to an energy saver for base station machine room air conditioners. The invention solves the problems of high power consumption and short service life in the existing air conditioner. The energy saver comprises a shell and an automatic control loop assembled in the shell. The invention has the technical points that a temperature acquisition control unit is arranged in the automatic control loop, and a room temperature sensor and a return air inlet temperature sensor and an air outlet temperature sensor transmit the acquired temperature analog values in three ways: the temperature analog value in the first way is converted into a digital signal through an analog-to-digital conversion chip; the temperature analog value in the second way is converted into a voltage signal through a current/voltage conversion chip of an operating mode control unit; and the temperature analog value in the third way is converted into a voltage value through a current sensor in a fault detection and recovery unit, and a pulse driver in a temperature compensation unit emits a pulse signal to drive the semiconductor refrigerator to work, thereby carrying out real-time dynamic compensation control. Due to the reasonable structural design, the invention can automatically adapt to the change of the operating state of the air conditioner, quickly display the fault, realize automatic fault recovery, obviously prolong the service life of the air conditioner and enhance the energy saving effect.

The invention provides a driving position adjusting method and device and a vehicle. The problem that in the prior art, a face recognition system runs for a long time and consequently consumes great power is solved. The method includes the steps that the face recognition system is started and used for obtaining face feature information of a driver; the driving position of the vehicle is adjusted according to the face feature information; whether a preset triggering event occurs on the vehicle or not is detected; if the preset triggering event occurs, the face recognition system is shut down.

The invention relates to a vehicle door unlocking method, device and system, electronic equipment and a storage medium. The method comprises the steps of continuously obtaining the distance between anobject outside a vehicle and an infrared distance measuring sensor through the infrared distance measuring sensor arranged outside the vehicle; in response to the fact that the distance is graduallyreduced and the duration that the distance is smaller than or equal to a first distance threshold value reaches a first duration threshold value, awakening and controlling an image collection module arranged on the vehicle to acquire a video stream; or, in response to the fact that the distance is gradually reduced and the distance is maintained for a fixed duration reaching a second duration threshold in the process that the distance is smaller than or equal to the second distance threshold, awakening and controlling the image collection module to acquire a video stream; performing face recognition based on at least one image in the video stream; and in response to successful face recognition, controlling at least one vehicle door of the vehicle to be unlocked and/or opened.

The invention discloses a source driver and a liquid crystal display (LCD) with the source driver. The source driver comprises an operational amplifier, wherein the operational amplifier is arranged at an output channel of the source driver, and a power supply voltage of the operational amplifier is less than an analog voltage of the source driver. The power consumption of the source driver can be reduced by using the invention.

A microflow sensor, which belongs to an MEMS (micro-electromechanical system) device, is used for air flow measurement, and solves the problems of conventional flow sensors, i.e. high power consumption, heat conduction of substrates and long response time. A substrate of one type of microflow sensor is provided with sockets, two separated heat-insulating layers are erected on the surfaces of the sockets, a heating body is sputtered on each heat-insulating layer, and metal electrodes are sputtered on both ends of each heating body. A substrate of another type of microflow sensor is provided with sockets, two separated heat-insulating layers are erected on the surfaces of the sockets, the surface of each heat-insulating layer is covered by an insulating layer, heating bodies are sputtered on the insulating layers, and metal electrodes are sputtered on both ends of each heating body. The microflow sensor is small and light, has stable performance, can effectively reduce measurement errors caused by the heat conduction of the substrate, measures air flow by measuring the resistance difference between the two heating bodies, and effectively solves the problems of conventional flow sensors, i.e. high power consumption, heat conduction of substrates and long response time.

The invention discloses a dual-body underwater vehicle propelled by mixing bionic swing and propellers, and relates to a dual-body structural underwater vehicle propelled by combining bionic swing andthe propellers. The dual-body underwater vehicle propelled by mixing bionic swing and the propellers is used for solving the problems that limitations exist in advantages of an existing bionic underwater vehicle and a propeller type underwater vehicle and an existing underwater vehicle propelled by combining bionic and gliding has low speed of floating upward and sinking downward and low flexibility of turning. According to the technical scheme, the dual-body underwater vehicle propelled by combining bionic swing and the propellers is characterized in that bionic swing type and the propellertype propelling are combined, bionic swing type propelling in the horizontal direction is realized through swing of a tail fin, and minor radius turning is realized; rapid floating upward and sinkingdownward are realized in the vertical direction through two front and rear propellers in the middle; and rotational inertia is increased through a dual-body structure of the vehicle, so that rotational resistance is larger when the vehicle is subjected to water flow disturbance, and capacity of resisting disturbance is improved. A detecting device carried by the dual-body underwater vehicle propelled by combining bionic swing and the propellers can be used in fields such as underwater environment detection and underwater target detection.

The invention relates to the technical field of Internet of Things price tags, in particular to a synchronization method for an electronic price tag, which comprises the following contents of: a networking step: allocating an awakening time zone and ID information corresponding to a flag bit to a newly accessed price tag; an update broadcast step: generating an update broadcast according to the current time zone information and the acquired update information, and broadcasting the update broadcast; wherein the update broadcast comprises update state data, and the update state data comprises information about whether each price tag awakened in the current time zone needs to be updated or not. Wherein the update state data comprises a plurality of flag bits in one-to-one correspondence withthe ID information of the waken price tag in the current time zone, and the value of each flag bit indicates whether the content of the price tag corresponding to the flag bit needs to be updated or not. The synchronization method for the electronic price tags can solve the problems that in an existing electronic price tag system, the number of the price tags managed by the same gateway is limited, and the synchronous updating process of the price tags is high in power consumption.

The invention discloses a minitype resistance humidity sensor and its preparation method. The sensor comprises a composite fiber beam and conductive circuits fixedly connected to both ends of the fiber beam, wherein the composite fiber beam consists of a PA66 nanofiber beam, a carbon nanotube and polyving akohol; the composite fiber beam is 30-120 mu m in diameter and 0.3-3 cm in length. The PA66 nano fiber beam is prepared by an electrostatic spinning technique, and then performed with ultrasound treatment in dispersing fluid of the carbon nanotube to prepare PA66/CNTs composite fiber beam; finally, both ends of the composite fiber beam are connected with the conductive circuits and immersed in the water solution of polyving akohol; after immersion, the composite fiber beam is frozen and unfrozen or heated and dried, thus the minitype resistance humidity sensor is obtained. The sensor overcomes problems generally existed in the existing humidity sensor, and has advantages of low cost, low power consumption, fast response speed and others; the sensor applies a flexible base and its structure is miniaturized; the minitype resistance humidity sensor can be widely applied to every domain.

The invention discloses a circuit of a single transformer for realizing luminance building-up and maintaining functions of a laser gyroscope high-voltage power supply. The circuit comprises a microprocessor chip, a luminance building-up control circuit, a quasi-resonance control chip, a transformer rectification and filtration circuit, a constant-current circuit and a feedback circuit. According to the circuit, the luminance building-up and maintaining functions of a laser gyroscope are realized, so that the laser gyroscope generates laser, maintains the laser, and keeps working within a certain current range, and the defects of large power consumption, multiple types and quantity of components, and the like caused by two transformers of a circuit of an original laser gyroscope high-voltage power supply are overcome; meanwhile, the size of a circuit board is effectively reduced, and the EMI (Electro-Magnetic Interference) interference is effectively inhibited.

The invention relates to an interactive positioning technology, in particular to a hand-held terminal, an interactive indoor tour-inspection system and an interactive indoor positioning method. The interactive indoor tour-inspection system comprises a hand-held terminal, a plurality of locating tags, an upper computer and a network communication module, wherein the hand-held terminal is provided with a trigger, a receiver and a network transmission module; the locating tags are arranged indoors and used for receiving a trigger signal sent by the hand-held terminal and transmitting an answering signal including position information of the locating tags; the network communication module is arranged indoors and used for completing information interaction between the network transmission module and the upper computer. The trigger and the receiver are arranged on the hand-held terminal, the locating tags are dual-mode tags, and the advantages of water resistance, pressure resistance, long service life, accurate positioning and low false alarm rate are achieved.