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2660results about How to "Extended working hours" patented technology

Method and system for identifying reasons of ZigBee sensor network packet loss

The invention discloses a method and system for identifying reasons of ZigBee sensor network packet loss. The method includes the steps that a receiving node carries out high-frequency sampling on corresponding receiving signal strength information and link quality information while receiving a data package; if the received data package fails to pass the cyclic redundancy check, collision mode fragments possibly existing in the high-frequency sampled receiving signal strength information and the high-frequency sampled link quality information are searched, and the modes monitored in the receiving signal strength information and the link quality information will be regrouped into a time-ordered mode sequence; the receiving node searches for the generated mode sequence and outputs the packet loss reasons of the damaged data package by using corresponding identifying rules; the receiving node adds the specific reasons of data package loss in an acknowledgment packet sent to a sending node. Through the method, network throughput can be improved and retransmission frequency can be reduced, so the purposes of saving energy and prolonging working time can be achieved.
Owner:SHANGHAI JIAO TONG UNIV

Liquid supply vehicle

The invention discloses a liquid supply vehicle, which comprises a frame with a cab. The lower part of the frame is provided with wheels, the rear upper part of the frame is provided with a bedplate, a power driving device is arranged on the bedplate, a centrifugal pump is arranged below the bedplate, the power driving device is in transmission connection with the centrifugal pump, and an inlet and an outlet of the centrifugal pump are connected with a suction pipe and a discharge pipe respectively. The liquid supply vehicle has the advantages of improving the self-sucking effect of a fracturing truck, improving the operation efficiency of the fracturing truck and shortening the operation time, along with reasonable design, simple structure, easy assembly and manufacture, and also can be used for liquid delivery in other industries of flood drainage, sewage clearing and the like.
Owner:ZYT GASOLINEEUM EQUIP

Positioning system of mobile robot and positioning method thereof

The invention discloses a positioning system of a mobile robot and a positioning method thereof. The positioning system comprises a base station. A dead reckoning positioning system comprises an angular rate sensor used for acquiring angle information of the mobile robot and a displacement sensor used for acquiring walking distance information of the mobile robot. An ultrasonic laser positioning system comprises an ultrasonic laser transmitting device arranged on the base station, an ultrasonic laser receiving device arranged on the mobile robot and an information processing system. The position coordinates of the mobile robot in the ultrasonic laser positioning system can be obtained through the information exchange between the ultrasonic laser transmitting device and the ultrasonic laser receiving device. A data fusion unit is used for the fusion of the angle information and the walking distance information in the dead reckoning positioning system as well as the fusion of two position coordinates in the dead reckoning positioning system and the ultrasonic laser positioning system. The elimination of accumulated errors in the dead reckoning positioning system is implemented by the ultrasonic laser positioning system through the data fusion unit.
Owner:ZHEJIANG YAT ELECTRICAL APPLIANCE CO LTD +1

Multifunctional automatic climbing device

The invention relates to a multifunctional automatic climbing device, particularly to an automatic climbing device which is suitable for a variable diameter fan tower barrel and can carry various working equipment. The multifunctional automatic climbing device is composed of a guide rail, an upper clamp, a lower clamp, a connecting platform and a power hydraulic cylinder. The lower clamp is fixedly connected to the bottom of the guide rail; the upper clamp is slidingly mounted on the upper part of the guide rail and can be vertically moved along the guide rail by effect of the power hydraulic cylinder; the connecting platform for connecting other working equipment is mounted on the top of the guide rail; the upper and lower clamps have two-layer structures; each layer is equipped with four fingers; and the upper clamp is installed with a control box and a hydraulic box. The multifunctional automatic climbing device can be connected with other working equipment to realize repairing and detection of a wind power generator, for example, the multifunctional automatic climbing device is connected with a lifting device to finish lifting and repairing of parts in a cabin and is connected with an annular platform to realize repairing and maintenance of outer surfaces of the tower barrel and blades. The multifunctional automatic climbing device has the characteristics of no height and region limitation, high automation level, ground remote control, and the like.
Owner:SHENYANG JIANZHU UNIVERSITY

Cement-based self-leveling mortar

The invention relates to cement-based self-leveling mortar, which is prepared from the following raw materials in percentage by weight: 35 to 40 percent of No.425 ordinary portland cement, 10 to 15 percent of No.42.5 rapid hardening sulphoaluminate cement, 15 to 18 percent of heavy calcium carbonate, 0.45 to 1 percent of high polymer, 0.15 to 0.3 percent of water reducing agent, 0.15 to 0.3 percent of early strength agent, 0.15 to 0.3 percent of retarder, 0.15 to 0.3 percent of thickener and the balance of fine river sand with the fineness modulus of 1.2 to 1.5. Compared with other traditional cement self-leveling mortar, the self-leveling mortar has the characteristics of higher fluidity, higher leveling property, high early strength and the like.
Owner:CHENGDU JIAXIN TECH

Explosion-proof and fire fighting reconnaissance robot

The invention discloses an explosion-proof and fire fighting reconnaissance robot. The robot comprises two parts including a fire fighting robot body and a remote control box, wherein the fire fighting robot body is composed of a box body assembly, an independent suspension shock absorption system, a fire fighting water cannon, a data acquisition multimedia assembly and an auxiliary part; the box body assembly adopts an explosion-proof design and is provided with a sensor, a camera and the fire fighting water cannon, so that the robot can replace fire fighters to enter inflammable and explosive environments and environments with toxic gas to detect and reconnoiter and can also enter accident scenes with rick smoke, fire disasters and the like to carry out fire fighting; the explosion-proof and fire fighting reconnaissance robot has the characteristics of small size, flexibility of walking, far communication distance, long working time and convenience for operation.
Owner:CITIC HIC KAICHENG INTELLIGENT EQUIP CO LTD

Full-automatic horizontal surface grinding machine mechanical arm

The invention discloses a full-automatic horizontal surface grinding machine mechanical arm which comprises a machine table and a product containing table. An automatic detection device, a turning device, a cleaning device and a grabbing mechanical arm body are arranged on the machine table. The product containing table and the machine table are arranged side by side. The automatic detection device, the turning device, the cleaning device and the grabbing mechanical arm body are all installed on the machine table, and an automatic grinding machine device is connected with the machine table. By means of the automatic detection device, the turning device, the cleaning device, the grabbing mechanical arm body and the automatic grinding machine device, saw blades are fed, discharged, detected, cleaned and ground in a full-automatic mode, full-automatic operation of the whole process is achieved, and labor cost of an enterprise is greatly reduced; by means of accurate numerical control operation, cost is reduced, the yield is improved, and the production loss rate is reduced; production efficiency is improved, and working time is shortened; by means of full-automatic production, guarantees can be provided for workers on the aspects of mechanical contusion, tiny dust and exhaust gas inhalation and metal dirty water corrosion to human bodies.
Owner:GUANGZHOU HENGWEI ELECTROMECHANICAL EQUIP CO LTD

Downhole signal transmitting device for electromagnetic measurement while drilling system and transmitting method thereof

The invention relates to a signal transmitting device for realizing wireless measurement while drilling. A downhole signal transmitting device for an electromagnetic measurement while drilling system comprises an upper drilling string and a lower drilling string, and an insulating joint is contained between the upper drilling string and the lower drilling string; and the upper drilling string and the lower drilling string are used for forming an asymmetric dipole antenna. The transmitting device adopts software radio technology to realize various functions of wireless transmission; the impedance matching between a transmitter antenna and transmission medium is realized through an impedance converter; and the dipole antenna is adopted to transmit a measurement while drilling data signal. The device and the method improve the adaptive capacity and measurement depth of the electromagnetic measurement while drilling system to different strata.
Owner:CHINA PETROLEUM & CHEM CORP +1

Device for weeding between seedlings and method for weeding

The invention discloses an inter-seedling weeding device and method, and relates to the technical field of agricultural machinery. The inter-seedling weeding device comprises a ground contour following device, a hoe blade lifting device, a tool setting device and a hoe blade device; and the ground contour following device comprises a contour wheel, a sliding plate, two sliding blocks, a spring and a cylindrical slide rail. The contour wheel and the hoe blade device are fixedly arranged on the sliding plate; and the sliding blocks are fixedly arranged on the sliding plate, and the sliding blocks and the spring are sleeved outside the cylindrical slide rail. The hoe blade lifting device comprises a second parallelogram mechanism and a second hydraulic cylinder, and the second hydraulic cylinder is arranged at the opposite sides or the adjacent sides of the second parallelogram mechanism. The tool setting device comprises a first parallelogram mechanism and a first hydraulic cylinder; and the first hydraulic cylinder is arranged on the opposite sides or the adjacent sides of the first parallelogram mechanism. According to the inter-seedling weeding device and method, disclosed by theinvention, the hoe blade can be protected and the seedling injuring rate during weeding can be reduced.
Owner:CHINA AGRI UNIV

Variable-gradient fractal lattice sandwiched reinforcement phase change heat sink

The invention discloses a variable-gradient fractal lattice sandwiched reinforcement phase change heat sink and aims to provide an efficient phase change heat sink which is high in heat exchange efficiency, has certain universality and can be developed in a serialization mode. The variable-gradient fractal lattice sandwiched reinforcement phase change heat sink is realized according to the following technical scheme: reinforcement heat transfer structures are distributed in a phase change heat sink shell in an array; each variable-gradient fractal lattice sandwiched unit takes a variable-gradient V structure as a first-stage reinforcement heat transfer structure (4) according to the heat transfer and heat exchange characteristics of the phase change heat sink; on this basis, at variable-gradient V-shaped ends of the first-stage reinforcement heat transfer structures, the variable-gradient V structures in the same shape are gradually increased to form multiple stages of reinforcement heat transfer structures, and the specific surface areas of the multiple stages of reinforcement heat transfer structures are multiplied in sequence; the first-stage reinforcement heat transfer structures can transfer heat to an area far away from a heat radiation bottom plate rapidly in a reinforcement mode, and the second-stage reinforcement heat transfer structures (5) and the third-stage reinforcement heat transfer structures can transfer heat to phase change material far away from the heat radiation bottom plate rapidly to complete heat exchange.
Owner:10TH RES INST OF CETC

Analog device of alimentary system

InactiveCN101000723AControl run timeRealize the function of simulating the digestive tractEducational modelsIntestinal structureLarge intestine
A simulation device of alimentary canal consists of simulated oral cavity, simulated oesophagus, simulated stomach, simulated small intestine, simulated big intestine, simulated anus and its switch, motor actuators set separately in said simulated organs, acid liquor storage chamber, buffer liquor storage chamber, digestive enzyme storage chamber, alkali liquor storage chamber, flow rate controllers set separately in said chambers, transducers of pH value and pressure as well as enzyme. It is featured as using central control unit to control said actuators and to set various parameters of complete alimentary canal.
Owner:重庆工学院

Cooling system and method of airborne heating element based on air expansion refrigeration

The invention discloses a cooling system and method of an airborne heating element based on air expansion refrigeration, and belongs to the field of airborne equipment cooling. The cooling system comprises a high heat-flow heating element spray cooling circulation subsystem, an air expansion refrigeration circulation subsystem and a regenerator (7), wherein the high heat-flow heating element spray cooling circulation subsystem comprises a buffer tank (8), a circulation pump (9), a filter (10), a flow regulating valve (11), a spray chamber (14) and a bypass valve (15); the air expansion refrigeration circulation subsystem comprises a primary heat exchanger (2), a secondary heat exchanger (4), a water separator (5), a turbine (6) and a fan (16). The system can achieve rapid cooling of high heat-flow heating element, and achieve the purpose of circulation cooling for multiple times through the regenerator; an intermediate regenerator structure makes full use of the characteristics of large working time intervals of the heating element and large phase change latent heat of phase change materials, greatly reduces the volume of system equipment, and meets the requirements of airborne equipment.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Synchronous rectification step-down converter chip with high-precision current detection function

The invention belongs to the field of power management and relates to a DC-DC step-down converter, in particular to a synchronous rectification step-down converter chip with a high-precision current detection function. The chip is based on a current PWM-mode DC-DC step-down converter. In the chip, the synchronous rectification switch PWM-mode current control technology is adopted, so the efficiency of the converter is greatly improved, and the output current can reach 2 A. By the adoption of a novel current detection sensing module with extremely high precision, the magnitude of a current can be detected more accurately in time, and the chip can be subjected to reliable overcurrent protection. Besides, according to the design of the chip, a double-frequency oscillator is adopted, so the frequency of a switching tube can be selected automatically according to the load capacity, the efficiency of the chip can be improved, and the working time of the chip can be prolonged. Lastly, the chip integrates a soft start circuit, so a surge current and an overshoot voltage which are generated during start can be suppressed, and an LED lamp and a driving chip can be protected against damage.
Owner:WUHAN UNIV

Ground processing system and method for contacting joint of ground processing equipment and charging stand

InactiveCN101375781AEasy to implement docking functionLow costCarpet cleanersFloor cleanersEnergy supplyEngineering
The invention relates to a ground handling system including an automatic moving ground handling device and a charger. The ground handling device is provided with a working mode and a charging mode and includes an energy supply unit and a control unit which can be charged repeatedly. When the electric quantity of the energy supply unit is lower than a preset value, the ground handling device is changed into the charging mode from the working mode through the control unit. The charger is used for charging the energy supply unit and is equipped with a signal emission device. A directional receiver and an omnidirectional receiver for receiving the signals emitted by the signal emission device are arranged at the front end and the top part of the ground handling device, and enable the ground handling device to automatic return to the charger for charging in the charging mode. The invention shortens the time of abutting joint and charging of the ground handling device, thereby prolong the efficient working time thereof and improving the working efficiency.
Owner:ECOVACS ROBOTICS (SUZHOU ) CO LTD

Curved rope wheel wave energy conversion and power generating system

The present invention relates to a wave energy conversion and power generation system. Said invention is characterized by that it utilizes a flexible surface which can be flexibly bent and fluctuated with wave to receive drive of wave, and utilizes a rope whose one end is tied on the described flexible surface and another end is winded round a rotating wheel to pull said rotating wheel, so that said rotating wheel can be used for converting wave energy into mechanical energy, then utilizes a hydraulic system and a power generator unit to convert the mechanical energy into electric energy.
Owner:曲言明

Multichannel respiratory physiological signal wireless monitoring system and method

The invention provides a multi-channel respiratory physiological signal wireless monitoring system, which comprises a sensor, a data acquisition sending terminal, a data receiving terminal and a PC and the sensor, the data acquisition sending terminal, the data receiving terminal and the PC are connected in sequence. The sensor is arranged on a diaphragm signal detection tube or a multi-functional respiratory signal detection tube of a patient; the acquisition sending terminal comprises a power supply module and a multi-channel signal amplifier module, an AD conversion module, an MCU acquisition and a transmission control module and a wireless transmission module, the multi-channel signal amplifier module, the AD conversion module, the MCU acquisition and the transmission control module and the wireless transmission module are connected in sequence. The power supply module is respectively connected with the multi-channel signal amplifier module, the AD conversion module, the MCU acquisition and transmission control module and the wireless transmission module. The receiving terminal comprises a wireless receiving module and an MCU receiving control module which are mutually connected and the MCU receiving control module is connected with the PC. The patient carrying the acquisition sending terminal can transmit 5-channel diaphragm myoelectric signal or cardiac electric signal, 3-channel respiratory pressure and flow signal to a remote monitoring center by the way of wireless, thus achieving the real-time display, storage, analysis and treatment of multi-channel signal.
Owner:广州锐士伯医疗科技有限公司

An active equalizing system and an equalizing method of power lithium ion battery

The invention relates to an active equalizing system and an equalizing method of power lithium ion battery. The equalizing system comprises a battery module, which is connected with an input end of an equalization controller through a battery pack voltage sampling module; any single battery in the battery module is connected with the input end of the equalization controller through a single battery voltage measuring module and is connected with an electric quantity equalizing module, which is connected with the input end of the equalization controller; and when the single battery voltage values and an average voltage value of the single batteries in the battery module correspond to the voltage relations preset by the equalization controller, the equalization controller outputs equalizing control signals to the electric quantity equalizing module and realizes the active equalization of the corresponding single batteries in the battery, thereby making the single battery voltages and the average voltage value of the single batteries in the battery module match the voltage relation preset by the equalization controller. The active equalizing system and equalizing method are convenient for usage and operation, capable of prolonging the service lifetime of the battery, highly flexible, safe and reliable.
Owner:无锡凌翔管理咨询有限公司

A cement-emulsified asphalt self-permeable grouting material applied to semi-flexible pavement

The invention discloses a cement-emulsified asphalt self-permeable grouting material applied to semi-flexible pavement, which comprises 100 parts of cement, 50-150 parts of mineral admixture, 15-40 parts of expansion agent, 0-80 parts of river sand, 0.5-20 parts of water agent, 60-140 parts of water, and 50-150 parts of emulsified asphalt, all of which are parts by weight. The grouting material of the present invention is low in cost, good in fluidity, long in working time, and satisfies the grouting characteristics of self-permeation of slurry; has good interfacial bonding performance with asphalt, and has a certain early strength function; the volume change rate is small, and the degree of delamination is less than 0.3%, with good volume stability; both cationic emulsified asphalt and anionic emulsified asphalt can be used, with a wide range of applications; applying this grouting material to semi-flexible pavement can greatly improve the fatigue life of flexible pavement The shear performance is effectively improved.
Owner:JIANGSU SUBOTE MATERIAL +4

Modular flight wall-climbing robot

InactiveCN105799805ASolve the problem of long time and poor flexibilityIncrease flexibilityRotocraftBrushless motorsModularity
The invention discloses a modular flight wall-climbing robot. The modular flight wall-climbing robot comprises a flight module, an adsorption module, a wall-climbing walking module and a control module. The wall-climbing walking module and the adsorption module are arranged on a rack of the flight module. The flight module, the adsorption module and the wall-climbing walking module are all controlled by the control module to work. The flight module comprises the rack, brushless motors, propellers and a lithium battery. The four propellers are distributed around the rack, each propeller is sleeved with a protective cover, the lower end of each propeller is connected with one brushless motor, the brushless motors are controlled by the control module to work, and the lithium battery is arranged on the lower portion of the rack and supplies power to the whole robot. The modular flight wall-climbing robot has the advantage that invisibility is greatly improved. All functions can be freely switched. The two functions of wall climbing and ground walking are achieved through one single module. The structure of the whole robot is simplified. High climbing capacity is achieved.
Owner:JILIN UNIV

Multiprotocol intelligent gateway based on narrowband Internet of Things, and implementation method thereof

The invention relates to a multiprotocol intelligent gateway based on narrowband Internet of Things, and an implementation method thereof. The multiprotocol intelligent gateway based on narrowband Internet of Things includes a low power consumption unit and a high performance unit, wherein the low power consumption unit includes a low power consumption controller, a solar cell panel, a power management module for managing the power supply mode and the cell state information, an NB-IOT module for receiving the information from a cloud server, a LoRa module for acquiring the field LoRa node information in a local LPWAN, and a signal acquisition conditioning module; the low power consumption controller is communicated with the power management module, the NB-IOT module and the LoRa module bidirectionally; and the high performance unit includes a high performance controller, an RS485 interface module for connecting RS485 nodes, a man-machine interface module for connecting a computer serial port or a serial port liquid crystal screen, a GPS interface module, a data memory module and an ethernet interface module. The multiprotocol intelligent gateway based on narrowband Internet of Things utilizes the mode of coordination of the low power consumption unit and the high performance unit, thus effectively solving the coordination problem of low power consumption and high performance under a plurality of application scenes.
Owner:HEBEI UNIV OF TECH

Power saving method and device for mobile terminal

The invention provides power saving method and device for a mobile terminal. The residual energy of a power supply of the mobile terminal is detected in real time, and the detected residual power is compared with a preset first power threshold value; when the residual power is lower than the first power threshold value, the device enters a first power-saving mode, the power of the mobile terminal is saved by reducing and then coding an image resolution ratio, and the working time of the mobile terminal is prolonged.
Owner:WUXI ZGMICRO ELECTRONICS CO LTD

Method and system for removing and supplying antioxidant from/to transformer insulating oil impurities

The invention relates to a method and a system for removing and supplying an antioxidant from / to transformer insulating oil impurities. Various chemical and physical components in transformer insulating oil are detected, and liquid impurities and solid impurities in the transformer insulating oil are removed according to a detection result, or an antioxidant is added into the transformer insulating oil, so that the quality of the transformer insulating oil is updated, reutilization of the transformer insulating oil is realized, the service life of the transformer insulating oil is prolonged, unnecessary environmental pollution is reduced, the replacing times of the transformer insulating oil are reduced, the working time of transformer equipment is prolonged, and the reliability of the transformer equipment is enhanced.
Owner:BEIJING ANSAIBO TECH

Bluetooth earphone and communication method based on same

The invention discloses a Bluetooth earphone and a communication method based on same. The Bluetooth earphone comprises a voice trigger module, an audio IC module, a low-power Bluetooth module, a conventional Bluetooth module, a microphone and a loudspeaker, wherein the low-power Bluetooth module remains long connection with a host end, and enters into a sleep state when the Bluetooth earphone is powered off. When a user interacts with the host end through voice commands, only the low-power Bluetooth module is started. When a user has to answer a phone call or dial a phone call to conduct voice conversation, the conventional Bluetooth module is started. The work mode combining the low-power Bluetooth module and the conventional Bluetooth module makes full use of the functional characteristics and the power consumption difference of the low-power Bluetooth module and the conventional Bluetooth module, thereby greatly reducing the power consumption of the Bluetooth earphone, and prolonging the standby time and working time. Interaction between the Bluetooth earphone and the host end through voice commands makes operation very convenient, and maximally free hands of a user. Bluetooth earphone and the communication method based on same are highly practical, and user experience is good.
Owner:QINGDAO GOERTEK

Technique for continuously and flatly rolling welding seams of cold-rolled sheets

InactiveCN101658869APrevent the phenomenon of pinchingAvoid Printing DefectsRoll force/gap control deviceMetal rolling arrangementsHydraulic cylinderSheet steel
The invention relates to a technique for continuously and flatly rolling welding seams of cold-rolled sheets. A computer controls a hydraulic cylinder of a flat roll and front and back tension rolls of a leveler, adjusts rolling force and strip steel running speed, and adopts a control method for firstly slowing down the speed and then reducing the rolling force, and firstly recovering the rollingforce and then recovering the speed to realize the continuous and flat rolling of the welding seams of the cold-rolled sheets. The technique does not influence the production of previous and subsequent procedures, and eliminates punch marks of the welding seams on the flat roll, so the punch mark defects of the steel sheets are avoided, the surface quality of the steel sheets is improved, and a value of 2.6 million Yuan can be saved each year. The rolling force is reduced, so power consumption is reduced and energy is saved; and the technique dose not need increasing any equipment and investment, is simple and feasible, and has quick response.
Owner:ANGANG STEEL CO LTD

Power battery pack detecting, evaluating and equalizing charge system and applying method thereof

The invention discloses a power battery pack detecting, evaluating and equalizing charge system and an applying method thereof. The power battery pack detecting, evaluating and equalizing charge system is characterized by comprising a battery pack detection part and an intelligent control part, wherein the battery pack detection part comprises a connector I and a plurality of voltage detection lines; the intelligent control part comprises a connector II, a plurality of voltage detecting and equalizing modules (1), a central controller, a current inducer (3), a control display panel (4), a load (5) and a charger (6); and the system is used for measuring voltage and temperature information of a power battery pack and measuring charge and discharge currents of the battery pack. The inventioncan be used for carrying out detecting, evaluating and equalizing charge on the power battery pack, helps a user know the current state of the power battery pack, improves the property of the power battery pack, and prolongs the service life.
Owner:SUN YAT SEN UNIV +1

Wireless remote sensing storage type seismograph system

The invention relates to a wireless remote sensing storage type seismograph system, which aims to solve the problem of absence of real-time quality control of the conventional storage type seismograph. The wireless remote sensing storage type seismograph system is a wireless-remote-sensing-based storage type digital seismograph system, and consists of three main units, namely a central control operating system (CCOS), control operating systems (COS) with a relay function and acquisition stations (AS). The utilization range of the wireless storage type seismograph is greatly widened, and the construction efficiency of the wireless storage type seismograph is greatly improved. The wireless remote sensing storage type seismograph system has the main advantages that: (1) the requirement of real-time quality monitoring over acquired seismic data is met; (2) the power-on, power-off and dormant state of the storage type seismic acquisition station can be switched by utilizing wireless remote sensing, and the operating state of a power supply can be known at any time, so that power loss is greatly decreased, and the operating time of the acquisition station is prolonged; (3) acquisition flexibility and efficiency are greatly improved; and (4) the operating state of the acquisition station can be monitored and set by utilizing the wireless remote sensing, so that the operating state of the acquisition state can be known at any time.
Owner:INST OF GEOLOGY & GEOPHYSICS CHINESE ACAD OF SCI +1

Display panel and pixel driving method thereof

The invention provides a display panel and a pixel driving method of the display panel. The display panel comprises a plurality of pixel units and a pixel driving circuit. The pixel units include red pixel areas, green pixel areas, first blue pixel areas and second blue pixel areas. The pixel driving circuit comprises a signal control circuit and a luminescence control circuit. After the brightness of the pixel units formed by the first blue pixel areas decays, a second control switch can be switched on so that the second blue pixel areas can replace the first blue pixel areas to work; after the brightness of the pixel units formed by the second blue pixel areas decays, a first control switch can be switched on so that the first blue pixel areas can replace the second blue pixel areas to work, or the first blue pixel areas and the second blue pixel areas can work at the same time so that the working time and the service life of the pixel units can be prolonged, and then the service life of the display panel can be prolonged.
Owner:SHANGHAI AVIC OPTOELECTRONICS +1

Power saving method of ultrasonic medical diagnosis system and ultrasonic medical diagnosis system

The invention relates to a power saving method of an ultrasonic medical diagnosis system, and an ultrasonic medical diagnosis system. Whether a probe is used or not is detected by arranging an accelerometer at the probe side of the ultrasonic medical diagnosis system, and then a corresponding control signal is generated according to detected signals and is transmitted to a host machine side via radio frequency wireless transmitting and receiving circuits arranged at the probe side and the host machine side so as to control an ultrasonic transmitting and receiving circuit in the host machine in a frozen state or a scanning state, so the ultrasonic transmitting and receiving circuit in the host machine is started when the probe works and is shut down when the probe dose not work. On the one hand, energy is saved for the ultrasonic device (especially a portable ultrasonic device), and on the other hand, the transmitting voltage can not be reduced due to temperature rise because of probe idle scanning, so the quality of an ultrasonic image can be improved.
Owner:GE MEDICAL SYST GLOBAL TECH CO LLC

Shallow towed CTD (conductivity-temperature-depth) monitoring system for Arctic Ocean

The invention relates to a shallow towed CTD (conductivity-temperature-depth) monitoring system for the Arctic Ocean. The shallow towed CTD monitoring system comprises an iced buoy device, an underwater profile detecting buoy device and a high-strength towed cable device, wherein the iced buoy device is applied to meteorological observation and control, satellite communication and power supply; the underwater profile detecting buoy device is used for carrying out buoyancy conversion and lifting control, and measuring the temperature, the salinity and the depth of seawater; and the high-strength towed cable device is used for connecting the iced buoy device and the underwater profile detecting buoy device, and providing a data signal wire, a high-strength towed cable and a seawater corrosion resistant vulcanized joint. According to the shallow towed CTD monitoring system for the Arctic Ocean, underwater CTD profile measurement can be carried out, the measurement depth is 0-120m below an ice layer, the blank of an international shallow observation method for 120m far from the sea is filled up, and synchronous hydrological and meteorological observation in the same region is achieved; an ultra-large capacity lithium battery power supply system is adopted, so that the service life of the system is prolonged; and the shallow towed CTD monitoring system has great popularization and application value, and can be popularized and applied to international related fields of polar region research.
Owner:TIANJIN YUANXU TECH

Awakening method and device based on low-power-consumption Bluetooth radio frequency

The invention discloses an awakening method and device based on low-power-consumption Bluetooth radio frequency, and the method comprises the steps: 1, carrying out system booting of an awakening terminal, and enabling high-power-consumption equipment to enter into a low-power-consumption state: shutdown or sleep; 2, enabling low-power-consumption Bluetooth slave equipment to enter into an intermittent work mode after the system booting of the awakening terminal; 3, enabling low-power-consumption Bluetooth main equipment of a control terminal to send a control instruction; 4, enabling low-power-consumption Bluetooth slave equipment of the awakening terminal to respond to the control instruction, and awakening the high-power-consumption equipment to work; 5, returning to step 2 after the low-power-consumption Bluetooth slave equipment of the awakening terminal completes an awakening task. The device comprises the equipment with a low-power-consumption Bluetooth slave, the awakening terminal formed by the high-power-consumption equipment which can be awakened by the equipment with the low-power-consumption Bluetooth slave, and the control end which consists of equipment with the low-power-consumption Bluetooth main unit. The method and device achieve the awakening of the high-power-consumption equipment in the air based on the radio frequency of low-power-consumption Bluetooth, and reduce the energy consumption of the high-power-consumption equipment.
Owner:MEDIASOC TECH
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