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59results about How to "Avoid continuous work" patented technology

Voice wake-up method and system based on bone conduction earphone, and bone conduction earphone

The embodiment of the invention relates to the technical field of wearable devices, and discloses a voice wake-up method and system based on a bone conduction earphone, and the bone conduction earphone. The method comprises the following steps: when the bone conduction earphone starts a voice wake-up function, detecting whether the bone conduction earphone receives a voice command used for waking up the bone conduction earphone; if the bone conduction earphone receives the voice command, waking up the bone conduction earphone; identifying whether the voice command is matched with any preset voice command used for waking up a wearable device connected with the bone conduction earphone; and if so, sending the voice command to the wearable device through the Bluetooth of the bone conduction earphone so as to wake up the wearable device. By implementation of the embodiment of the invention, the voice wake-up function with low power consumption can be realized in the wearable device, and the cruising ability of the battery of the wearable device is improved.
Owner:GUANGDONG XIAOTIANCAI TECH CO LTD

Flexible joint clamp, multi-layer mechanical arm with same and full-automatic welding system

The invention discloses a flexible joint clamp, a multi-layer mechanical arm with the flexible joint clamp and a full-automatic welding system provided with the multi-layer mechanical arm. The flexible joint clamp comprises a first flexible joint clamping board and a second flexible joint claming board, wherein the first flexible joint clamping board and the second flexible joint clamping board are arranged oppositely. The middle portion of the second flexible joint clamping board is installed on the first flexible joint clamping board in a pivoting mode. The upper portion of the first flexible joint clamping board and the upper portion of the second flexible joint clamping board are respectively provided with a flexible joint clamping portion. The lower portion of the second flexible joint clamping board is an inclined pressing board. The second flexible joint clamping board presses and abuts against the first flexible joint clamping board through a flexible joint spring. The flexible joint clamp can be matched with other hard elements so that the multi-level mechanical arm can be installed and formed, the multi-level mechanical arm with the flexible joint clamp can be applied to the welding system, and therefore full automatic welding between flexible joint and the hard elements is achieved. An accurate welding point and the good welding uniformity can be kept and the performance index of the welded product is good.
Owner:ZHEJIANG CHINT ELECTRIC CO LTD

OLED phase inverting circuit and display panel

The invention discloses a phase inverting circuit and a driving method thereof and is characterized in that the phase inverting circuit includes a pull-up unit which is provided with a first power supply input end, a first end, a second end and a third end, wherein the first power supply input end receives a first power supply voltage, the first end receives a first control signal and the third end is electrically connected with a signal output end and outputs a first level signal; a pull-down unit which is provided with a second power supply input end, a forth end, a fifth end and a sixth end, wherein the forth end is electrically connected with the second end of the pull-up unit, the second power supply input end receives a second power supply voltage, the fifth end receives a second control signal and the sixth end is electrically connected with the signal output end and outputs a second level signal; and a first capacitor, wherein a first end of the first capacitor is electrically connected with the second end of the pull-up unit and the forth end of the pull-down unit, and a second end of the first capacitor is electrically connected with the third end of the pull-up unit and the sixth end of the pull-down unit.
Owner:WUHAN TIANMA MICRO ELECTRONICS CO LTD +1

Vehicle double-fuel system oil pump control method

The invention discloses a vehicle double-fuel system oil pump control method. The double fuel refers to the fuel oil and fuel gas. The control method comprises the steps of a KEY-ON pattern strategy, a starting control strategy, a control strategy for switching fuel oil into fuel gas after starting is conducted, a control strategy for automatically switching fuel oil into fuel gas and a strategy of automatically switching fuel gas into fuel oil. The vehicle double-fuel system oil pump control method has the advantages that an oil pump can be effectively protected, the oil pump is prevented from working continually in the switching process, and the service life of equipment is prolonged.
Owner:CHERY AUTOMOBILE CO LTD

Method for heating liquid in an electric kettle

The invention relates to an electric kettle for heating water whereby the kettle has an electric heating element with an electronic regulator which detects the temperature and the duration of heating via sensors. The kettle comprises a non volatile electronic memory wherein predefined characteristic data is stored for verifying the sensor information. The invention also relates to a method for regulating a heating process for a kettle of said type, comprising the following steps: switching on a heating element; measuring the increase in temperature DELTA T at a predetermined time interval ttot-to; switching off the heating element if the measured temperature increase DELTA T is less than or equal to Tmin; measuring the temperature T at the time tmax; switching off the heating element if the measured temperature Ttmax is greater than the stored temperature Tmax; regular completion of the heating process. The invention enables a simple and secure detection of and response to an error function occurring in the heating element or the electronic regulator in the electric kettle.
Owner:BRAUN GMBH

Omni-directional mechanical arm for laser welding

The invention discloses an omni-directional mechanical arm for laser welding. The omni-directional mechanical arm for the laser welding comprises a base, a first device cavity is formed inside the base, a horizontal steering device is arranged in the first device cavity, a rotating disc is arranged at the upper end of the horizontal steering device, a supporting arm is fixedly connected to the upper end of the rotating disc, and the upper end of the rotating disc is rotationally connected with a first connecting rod. According to the omni-directional mechanical arm for the laser welding, the problems that when a mechanical arm for the laser welding is used in a welding process, certain impact force can be generated between welding materials and welding workpieces in a melting process, which threaten firmness performance between a welding head and fixing clamps, so that the distance between the welding head and the welding workpieces have to be adjusted, and that as the welding mechanical arm cannot adjust the welding height of the welding mechanical arm and the distance between the welding mechanical arm and the welding workpieces according to the volume of the welding workpieces,so that welding accuracy of the laser welding arm is affected are all solved.
Owner:朱金芝

Safety protection device for power transformer

The invention discloses a safety protection device for a power transformer, which includes a base, a box body and a shutter, the base is provided with a mounting seat and a buffer unit, the buffer unit includes a guide post and a buffer spring, and the guide post is provided with a A mounting plate is provided, and a first mounting hole is opened on the mounting plate; a heat dissipation unit, an electrical box, a support seat and a hydraulic cylinder are provided on the box body, a rotating shaft is provided on the support seat, and the heat dissipation unit It includes a heat dissipation plate, a fixed plate and a heat dissipation motor, the heat dissipation motor is provided with fan blades, and several heat dissipation holes and second installation holes are evenly distributed on the heat dissipation plate; a solar panel is provided on the shield , the interior of the shutter is provided with a storage battery. The device can effectively protect the power transformer, has good buffering effect, high heat dissipation and convenient maintenance.
Owner:方敏

Hydrogen pressure control method and device of fuel cell engine system

ActiveCN112467176AControl hydrogen pressurePrecise control of hydrogen pressureFuel cellsFuel cellsControl signal
The invention discloses a hydrogen pressure control method and device for a fuel cell engine system. The method comprises steps of pre-defining a target hydrogen pile-in pressure, and obtaining an actual hydrogen pile-in pressure; calculating a difference value between the target hydrogen in-pile pressure and the actual hydrogen in-pile pressure, and calculating a change rate of the actual hydrogen in-pile pressure; taking the difference value and the change rate as the input of a fuzzy control algorithm, and adjusting the output of the fuzzy control algorithm according to a threshold rule toobtain regulation and control output; and adjusting the hydrogen reactor inlet pressure according to the regulation and control output. According to the method, a fuzzy controller control mode is adopted, so extremely high stability and a rapid response effect are achieved; by judging the demand instruction, meaningless control of certain intervals is avoided, and the power consumption of hardwareis reduced; by limiting the output range of the signals, overshoot of the control signals under special conditions is avoided.
Owner:上海燃锐新能源汽车技术有限公司

Power system based on new energy vehicles

The invention discloses a power system based on new energy vehicles, and the power system is suitable for improving dynamic efficiency of the new energy vehicles. The power system includes a vehicle controller, a first battery device and a second battery device, and the vehicle controller can receive a power demand signal; the first battery device and the second battery device are connected in parallel, the first battery device and the second battery device are separately connected with the vehicle controller, and the first battery device and the second battery device are both connected with amotor; the first battery device can separately output a drive current and a charging current according to the power demand signal and a residual electricity value of the second battery device, the drive current can drive the motor to rotate, and the charging current can charge the second battery device; and the second battery device can output a compensating current according to the power demandsignal, and the compensating current and the drive current are matched to drive the motor to operate. The power system based on the new energy vehicles has the advantages of high power output efficiency, steady power output and long battery service life.
Owner:BEIJING UNIV OF AERONAUTICS & ASTRONAUTICS DONGGUAN

Low-voltage intelligent distribution cabinet

The invention discloses a low-voltage intelligent distribution cabinet, comprising a cabinet body and a cabinet door. The cabinet body comprises a bottom cabinet, a pull-out cabinet body and a plurality of distribution sub-cabinets. The cabinet door is hinged on the front end of the distribution sub-cabinet. The inner cavity of the bottom cabinet and the pull-out cabinet is divided into two cavities by a partition board. The front end of the inner cavity of the bottom cabinet is communicated with the front end of the inner cavity of the pull-out cabinet, and the front baffle plate of the bottom cabinet is provided with an air inlet hole; The rear end of the inner cavity of the bottom cabinet is communicated with the rear end of the inner cavity of the suction type cabinet, and the rear endof the inner cavity of the bottom cabinet is provided with an air suction fan; A plurality of distribution sub-cabinets are provided with an air inlet channel connected with each other at the front end on the same side, The bottom of the air inlet passage is communicated with the front end of the pull-out cabinet body, the air inlet passage and each distribution sub-cabinet are provided with through holes, the rear ends of the other sides of several distribution sub-cabinets are provided with air outlet passages which are communicated with each other, the bottom of the air outlet passage is communicated with the air extraction fan, and the air outlet passage and each distribution sub-cabinet are provided with through holes.
Owner:上电电气(江苏)有限公司

Ozone water machine using raw material water for cooling

The invention discloses an ozone water machine using raw material water for cooling. The ozone water machine comprises an oxygen feed system, a water-cooled ozone generation pipe, a gas-liquid mixing pump and an ozone dissolving device. An oxygen output opening of the oxygen feed system is communicated with an oxygen inlet of the water-cooled ozone generation pipe, and a water inlet of the gas-liquid mixing pump is communicated with a raw material water source used for preparing ozone water. The ozone water machine further comprises a backwater preventing device and a flow dividing pipeline, an ozone outlet of the water-cooled ozone generation pipe is communicated with a gas inlet of the backwater preventing device, a gas outlet of the backwater preventing device is communicated with an air suction port of the gas-liquid mixing pump, a water outlet of the gas-liquid mixing pump is divided into two paths through the flow dividing pipeline, one path is communicated with a cooling water inlet of the water-cooled ozone generation pipe, the other path is communicated with a water inlet of the ozone dissolving device, and a cooling water outlet of the water-cooled ozone generation pipe is communicated with a water inlet of the ozone dissolving device. The produced ozone water is high and stable in yield and stable in concentration, the efficiency is high, and the ozone water machine has the advantages of saving energy, being environmentally friendly, low in cost and small in installing space.
Owner:GUANGZHOU CHUANGHUAN OZONE ELECTRICAL EQUIP CO LTD

Thermal-insulation fireproof steel structure

The invention discloses a thermal-insulation fireproof steel structure. A steel structure body (1) is a square steel tube or a round steel tube, multiple hollow tubes (2) with two closed ends are arranged inside the steel structure body (1), and the upper portion of an inner cavity of the steel structure body (1) is connected with an exhaust pipe (3); the lower end of the inner cavity of the steel structure body (1) is connected with a water inlet pipe (4), the upper end of the same side is connected with a water outlet tube (5), a water source sequentially passes through a water pump (6) and a one-way valve (7) to enter the inner cavity of the steel structure body, a starting switch of the water pump (6) is connected with an electromagnetic valve (8), and the other end of the electromagnetic valve (8) is connected with a temperature sensor (9). The interior of a steel structure building can be kept at constant temperature for a long time, and meanwhile fireproofness can be achieved effectively at a low cost.
Owner:JIANGSU HUAHAI STEEL STRUCTURE CO LTD

Bipolar circuit breaker with display function

ActiveCN111916316ARealize leakage trip protectionAvoid rotating the displaySwitching device condition indicationProtective switch terminals/connectionsEngineeringCircuit breaker
A bipolar circuit breaker with a display function disclosed by the present invention comprises a circuit breaker shell, a first execution mechanism and a second execution mechanism are arranged at thetwo sides of the circuit breaker shell respectively, and the first execution mechanism and the second execution mechanism are both equipped with the moving contacts. One side of the first executing mechanism and one side of the second executing mechanism are connected with an electric leakage electromagnetic system and a short-circuit electromagnetic system respectively, and the other side of thefirst execution mechanism and the other side of the second execution mechanism are both connected with handles. The first execution mechanism is connected with the electric leakage electromagnetic system through an electric leakage display mechanism, and the electric leakage display mechanism comprises an indication accessory. A first linkage part is arranged between the indication accessory andthe first execution mechanism, an indication piece is connected to the inner side of each handle, and one side of the indication piece is connected with the indication accessory through a second linkage part. According to the present invention, the electric leakage display effect can be achieved when the circuit breaker is switched off due to electric leakage, and the bipolar circuit breaker has the advantages that the circuit board is good in power-off stability, and the circuit breaker is convenient to install.
Owner:ZHEJIANG MAXGE ELECTRIC TECH

Running wheel forging and pressing device of electric pole steel die

The invention discloses a running wheel forging and pressing device of an of electric pole steel die. The running wheel forging and pressing device comprises a forging and pressing mechanism and a collecting box, the forging and pressing mechanism is mainly composed of supporting legs, a supporting plate, a machine box and a workbench, wherein the tops of the supporting legs are connected with thesupporting plate through bolts, the top of the supporting plate is connected with the machine box and the workbench through bolts, the workbench is located on the inner side of the machine box, the collecting box is located behind the supporting legs, and the device further comprises a cooling mechanism and a forming die. Due to the arrangement of the forming die, continuous work of the two forming die bodies is prevented, temperature rise of the two forming die bodies is slowed down, the function of cleaning impurities around the two forming die bodies on the outer side of the device is achieved, and safety is improved; and through the arrangement of the cooling mechanism, the function of rapidly cooling the two forming die bodies, buffer springs and a forging and pressing plate is achieved, and the service life of the device is prolonged.
Owner:JIANGSU HAI HENG BUILDING MATERIAL MACHINERY CO LTD

Impeller type aerator

The invention provides an impeller type aerator. The impeller type aerator includes a first motor, an impeller, connection rods, and floating bodies; first ends of the connection rods are fixedly connected to the first motor; second ends of the connection rods are fixedly connected to the floating bodies; an output shaft of the first motor is fixedly connected to the impeller; the impeller type aerator includes a first drainage ring and drainage units; each drainage unit include a drive device and a second drainage ring, a fixing end of the drive device is connected to the corresponding connection rod, the second drainage ring is slidingly connected to an output end of the drive device in the axial direction of the second drainage ring, and the first drainage ring is fixedly connected to the output end; the first drainage ring and the second drainage ring have the same structure; the second drainage ring extends outward in the axial direction and is provided with a partition plate; and the first drainage ring and the second drainage ring are positioned under the impeller. The impeller type aerator can adjust the depth of oxygenation.
Owner:ZHUHAI COLLEGE OF JILIN UNIV

Human body induction no-man automatic switch-off system

A human body induction no-man automatic switch-off system is disclosed and comprises an infrared human body induction module, a control module, an intelligent switch and household electrical appliances. The infrared human body induction module comprises an infrared detector, a Fresnel optical filter and an infrared sensor, wherein the infrared detector can be used for detecting infrared rays radiated from human bodies, the infrared rays can be focused on the infrared sensor via the Fresnel optical filter, and change of the infrared rays radiated from human bodies can be converted into electric signals via the infrared sensor. When no one is home, the electric signals sent out from the infrared sensor are lower than a preset threshold value; when the weak electric signals last for a certain time, the control module sends a switch-off signal to the intelligent switch; various kinds of household electrical appliances such as air-conditioners, electric water heaters, lamps and the like that are connected with the intelligent switch can be automatically switched off.
Owner:轩脉家居科技(上海)有限公司

GIS circuit breaker disc spring hydraulic mechanism energy storage pressure control device and circuit breaker

The invention provides a GIS circuit breaker disc spring hydraulic mechanism energy storage pressure control device and a circuit breaker, belongs to the field of hydraulic fluid execution mechanisms, and particularly relates to a circuit breaker disc spring hydraulic mechanism. Comprising a power supply, a motor power supply loop and a motor control loop, the motor power supply loop comprises a relay contact connected in series between a motor and the power supply, and the motor control loop comprises at least one of an opening branch, a closing branch and a reclosing branch and a rated branch which are connected in parallel; the rated branch comprises a first switch and a rated limit switch which are connected in series; the opening branch comprises a second switch and an opening limit switch which are connected in series; the closing branch comprises a third switch and a closing limit switch which are connected in series; the reclosing branch comprises a fourth switch and a reclosing limit switch which are connected in series; and one end of a motor control loop formed by connecting the branches in parallel is connected to any end of the power supply, and the other end of the motor control loop is connected to the other end of the power supply after passing through a relay coil corresponding to the relay contact.
Owner:HENAN PINGGAO ELECTRIC +1

Communication tower with anti-falling device

The invention relates to the technical field of communication towers, in particular to a communication tower with an anti-falling device, which comprises a communication tower body and a controller arranged on the communication tower body, and further comprises a winding module arranged on the communication tower body, and a safety rope is wound in the winding module. The winding module can control the winding work of the safety rope; the anti-falling hook is detachably mounted on the communication tower body and connected with the safety rope; the memory modules are uniformly arranged on the communication tower body and used for monitoring the position of a maintainer, and the memory modules are electrically connected with the winding module; on the premise that the safety protection effect is guaranteed, electric energy is saved, continuous work of the stepping motor is avoided, compared with a traditional communication tower, the safety protection coefficient of the device is high, and the life safety of a maintainer during high-altitude operation can be effectively guaranteed.
Owner:纪志明

Fatigue driving detection and early warning system based on machine vision

The invention discloses a fatigue driving detection and early warning system based on machine vision. The system comprises a driving duration obtaining module, a central processing module, a human face video image acquisition module and an early warning module; the driving duration obtaining module, the human face video image acquisition module and the early warning module are all connected with the central processing module; the driving duration acquisition module is used for acquiring a driving duration of a driver and sending the driving duration to the central processing module; the central processing module is used for judging a driving state of the driver according to the driving duration of the driver, and driving the human face video image acquisition module to acquire a face video image of the driver when the driver is judged to be in a fatigue driving state; and the central processing module receives the face video image, judges whether the driver is in the fatigue driving state or not according to the received face video image, and if the driver is judged to be in the fatigue driving state, driving the early warning module to send out an alarm. According to the system, the fatigue detection is carried out in a non-contact mode, so that the use by the driver is more convenient.
Owner:ZHAOQING UNIV

Rotor engine

The invention provides a rotor engine, belongs to the technical field of engines, and solves such technical problems as bad wear and difficult sealing of a traditional rotor engine. The rotor engine comprises a cylinder, and rotors positioned in the cylinder; the rotors divide the cylinder into three combustion chambers; the rotors include main bodies, and sealing parts respectively positioned at three corners of the main bodies; multiple sealing steel rings are arranged on the inner wall of the cylinder; rotating columns capable of freely rotating are arranged at the sealing parts, and are provided with sealing modules corresponding to the sealing steel rings one to one; the main bodies are provided with hydraulic cavities corresponding to the rotating columns one to one; the main bodies are provided with pressure synchronizing devices capable of keeping synchronization between the pressures in the hydraulic cavities and the higher pressure of the pressures in the two combustion chambers on two sides of seals; and the sealing parts can be pressed with the inner wall of the cylinder under the effect of the pressures in the hydraulic cavities. The rotor engine has such advantages as low wear and excellent sealing.
Owner:HUBEI UNIV OF SCI & TECH

Control method of washing machine and washing machine

The invention relates to the technical field of household appliance control, in particular to a control method of a washing machine and the washing machine. According to the method, in the process ofgradual acceleration for dewatering, the motor torque is detected regularly and whether the motor torque is abnormal or not is judged; under the abnormal condition, acceleration for dewatering is stopped and reverse rotation is performed; then, acceleration is performed again for dewatering operation. By use of the control method of the washing machine, the torque of the washing machine can be detected automatically, the cloth clamp problem of the washing machine can be judged according to increase of the torque of the washing machine, meanwhile, the washing machine can be controlled to rotatereversely and rotate out clamped cloth from a washing machine window pad, the trouble of cloth clamping is effectively solved, and satisfaction of a user can be improved.
Owner:QINGDAO HAIER WASHING ELECTRIC APPLIANCES CO LTD +1

Method for producing organic fertilizer through earthworm breeding, earthworm breeding device and earthworm breeding system

The invention relates to a method for producing an organic fertilizer through earthworm breeding, an earthworm breeding device and an earthworm breeding system and belongs to the technical field of waste recycling and treatment. The method for producing the organic fertilizer through earthworm breeding comprises the following steps: performing earthworm culture treatment on a culture container inwhich earthworms are inoculated, and converting a culture medium in the culture container into wormcast; performing earthworm expelling treatment on the culture container after wormcast conversion toenable the earthworm to migrate into a culture container filled with the culture medium so as to obtain a culture container in which the earthworms are inoculated, and collecting the culture medium, that is, the organic fertilizer, which is converted into the wormcast in the culture container from which the earthworms are migrated out; repeating the operation. According to the method for producingthe organic fertilizer through earthworm breeding, continuous production of the organic fertilizer is achieved, and the production efficiency is high.
Owner:新县长征水资源环境治理有限公司

Engineering vehicle with air conditioning system

The invention provides an engineering vehicle with an air conditioning system. The engineering vehicle comprises a chassis, a main engine, an auxiliary engine, a controller and the air conditioning system. The main engine, the air conditioning system and the auxiliary engine are all arranged on the chassis. The controller is connected with the main engine and the auxiliary engine. When the engineering vehicle is under the first working condition, the controller controls the main engine to work and provides power for the air conditioning system. When the engineering vehicle is under the second working condition, the controller controls the auxiliary engine to work and provides power for the air conditioning system. Compared with the prior art, the engineering vehicle is independent of power of the main engine when only the air conditioning system works, the main engine is prevented from working continuously for an ultra-long time, and the service life of the main engine is prolonged; and in addition, the auxiliary engine is adopted to supply power to the air conditioning system, and thus energy waste can be reduced.
Owner:ZHEJIANG SANY EQUIP

Injection molding flash detection device

The invention relates to the technical field of plastic part processing, and particularly discloses an injection molding flash detection device. The injection molding flash detection device comprisesa rack. A motor is installed on the rack. An output end of the motor is fixedly connected with a rotary plate. An air cylinder is installed on the rotary plate. An output end of the air cylinder is coaxially and fixedly connected with a vertical shaft. The vertical shaft comprises an inner shaft body and an outer shaft body. A sliding groove is formed in the inner wall of the outer shaft body. A switch for controlling the motor to work is installed on the top wall of the sliding groove. A sliding block is fixedly connected with the outer wall of the inner shaft body. The sliding block is in sliding connection with the sliding groove. The top end of the inner shaft body is connected with a clamping mechanism used for clamping an injection molding part. A detection ring is arranged between the air cylinder and a transverse plate. The detection ring is fixedly connected to the rack. The detection ring and the injection molding part are arranged coaxially. The inner diameter of the detection ring is larger than the outer diameter of the injection molding part. A tool for cutting off flash is fixedly connected with the side, facing the transverse plate, of the detection ring. The tool is arranged to be attached to the outer wall of the injection molding part. The injection molding flash detection device can achieve detection on the flash of an injection molding part, and can automatically deal with the flash after detecting that flash exists on the injection molding part.
Owner:重庆雷钜电子科技有限公司

Rotor spinning power-off integral head-keeping system

The invention discloses a rotor spinning power-off integral head leaving system which comprises a process negative pressure motor, a machine head controller and a middle section control panel, the process negative pressure motor is connected with a fan, inertia kinetic energy of the fan is converted into electric energy through the motor and a process negative pressure frequency converter during power off, and the converted electric energy is continuously supplied to a bus of an electric control system; the machine head controller controls the winding motor and the yarn guiding motor. And the middle-section control plate controls the cotton feeding roller. An additional energy storage device is not needed, the power supply problem of the electric control system when the rotor spinning equipment is powered off is effectively solved, the cost is greatly saved, the reliability is improved, the electric control system continuously works and completes the overall head remaining function when the rotor spinning equipment is powered off externally, overall head making-up is not needed when rotor spinning equipment is started again, and the efficiency is improved. The labor intensity of workers is greatly reduced, the high-imitation yarn yield is improved, and the completeness of a power supply system is guaranteed.
Owner:ZHEJIANG JINMA AUTOMATION TECH CO LTD

Intelligent photovoltaic irrigation system capable of preventing false pulling of dry and wet probe

ActiveCN113741269ACannot achieve the purpose of preventing accidental extractionAvoid continuous workProgramme controlComputer controlAgricultural scienceControl engineering
The invention discloses an intelligent photovoltaic irrigation system capable of preventing false pulling of dry and wet probes, which comprises an irrigator, a sensor module, a control module and a solar power supply module. The sensor module comprises a plurality of dry and wet probes, and the plurality of dry and wet probes are connected in parallel; the control module comprises a time delay system, a self-locking system and a control switch; when abnormal conditions such as mistaken pulling or faults occur in the plurality of dry and wet probes, only one dry and wet probe needs to be conducted; the irrigator is still in a non-working state; when the irrigator has an abnormal condition and works abnormally for a period of time, the control module controls the irrigator to stop working, self-locking of the irrigator is achieved, and the irrigator can work normally again only after the abnormal condition is relieved. Through the improvement, the intelligent photovoltaic irrigation system capable of preventing the dry-wet probe from being pulled out by mistake can achieve the purpose of saving water.
Owner:GUANGZHOU UNIVERSITY

Sand screening equipment for constructional engineering and working method thereof

The sand screening equipment comprises a box body, a main shaft is rotationally connected to the inner wall of the bottom of the box body, a barrel is fixed to the top of the main shaft, a motor is fixed to the inner wall of the bottom of the box body, the motor and the main shaft are fixed, guide plates are fixed to the inner walls of the two sides of the barrel, and guide grooves are formed in the inner sides of the guide plates; a first spring is fixed between the guide block and the inner wall of the bottom of the guide groove; ejector rods are fixed to the top of the guide block; a screen is fixed to the tops of the two ejector rods; a screw rod is rotationally connected to one side of the inner wall of the bottom of the box body, a sleeve block is in threaded connection with the screw rod, a frame rod is fixed to the inner side of the sleeve block, and a disc is fixed to the bottom of the frame rod; a plurality of branch rods are fixed to the circumferential outer wall of the disc, frame plates are fixed to the outer sides of the branch rods, roll shafts are rotationally connected to the inner sides of the frame plates, and the frame rods are connected with orientation mechanisms; the wave-shaped screen is used for promoting screening of the screen, and meanwhile screening is accelerated through up-down movement of the screen.
Owner:何丽萍

A thermal ticket printer to prevent local overheating

The invention provides a heat-sensitive ticket printer preventing local overheating. According to the ticket printer, a forward paper feeding direction and a reverse paper feeding direction are provided, and the positions of common heating elements in a printing head are judged according to heating records; next, under the condition of possible local overheating, the bitmap of a ticket to be printed currently is analyzed so as to determine the time sequence distribution of print points when the ticket is printed in the forward paper feeding direction and the reverse paper feeding direction; and then, the heating time intervals of the common heating elements in the forward paper feeding direction and the reverse paper feeding direction are respectively determined through matching operation, the paper feeding direction in which the heating time interval can be delayed is selected from the two paper feeding directions, and a corresponding time sequence scheme is selected.
Owner:浙江网新电气技术有限公司

Method and device for dumping garbage with double transfer buckets of electric cleaning vehicle

The invention discloses a double transfer bucket garbage transferring and storing method and device for an electric sweeping vehicle. An intermittent cycle operation mode is adopted in the double transfer bucket garbage transferring and storing method. The double transfer bucket garbage transferring and storing method is characterized by comprising the steps that garbage swept into a transition drum through a rolling brush is pushed to a left transfer bucket and a right transfer bucket through a left transition push plate and a right transition push plate which are arranged in the drum respectively; the left transfer bucket and the right transfer bucket simultaneously rise to an entrance of a lateral dumping slideway, and the garbage in the transfer buckets is pushed out of the transfer buckets through left-and-right motion of electric push rods, the garbage is dumped into a standard garbage can through the lateral dumping slideway; the left transfer bucket and the right transfer bucket simultaneously fall to a left port and a right port of the transition drum. The double transfer bucket garbage transferring and storing device comprises a transition device arranged behind a rolling brush device, lifting devices arranged in the middle of the sweeping vehicle and the lateral dumping slideway arranged on the upper portion of the standard garbage can, wherein the transition device is provided with a left transition drum pushing mechanism and a right transition drum pushing mechanism which are used for pushing the garbage, and the lifting devices are provided with the left transfer bucket and the right transfer bucket which can rise and fall. The device is easy to run and operate, high in reliability and capable of replacing a high-power fan dust suction device for the sweeping vehicle and effectively reducing battery energy consumption.
Owner:TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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