362results about How to "No manual control" patented technology

The invention relates to a wireless acquisition device of culture water quality, which comprises a sensor group, a microprocessor and a wireless communication module. Based on the wireless acquisition device, the invention also discloses a system for wirelessly monitoring the culture water quality, which comprises a data storage module, a power supply module and a buoy. The device and the system adopt a solar energy supply; the system has an online state and a dormant state; software and hardware are designed by adopting a low power consumption power-saving mode, and can acquire and store a plurality of water quality parameters such as the pH value, the electrical conductivity (EC), the water level, the dissolved oxygen (DO) and the water temperature of a culture water environment; the acquired data can be sent to a data monitoring center by GPRS; and the DO value in water can be predicted, and water quality DO early warning information is sent to an intensification aquaculture manager through mobile phone short messages.

The invention discloses a stone-crushing concrete preparation device for buildings. The stone-crushing concrete preparation device comprises a base, wherein a left supporting plate and a right supporting plate are correspondingly arranged on the left side and the right side of the base; a crushing box is fixedly arranged between the left supporting plate and the right supporting plate through a support; an extruding plate is fixedly arranged at the inner bottom of the crushing box; a marble is connected to a first rotating shaft through a snapline and positioned below the crushing box; an agitator is obliquely arranged on the base through a support, and a receiving hopper is arranged on the left side of the top of the agitator; a third rotating shaft is rotationally connected to the interior of the agitator; a spiral blade is mounted on the third rotating shaft; and the left end of the third rotating shaft penetrates the left side wall of the agitator and is connected with the right end of the first rotating shaft through a universal coupler. According to the stone-crushing concrete preparation device, the bottom of the crushing box is knocked by the marble, so that adhesion blockage is prevented; and screened stone particles directly enter the agitator to prepare concrete without manual control, so that the processing efficiency is effectively improved.

The invention relates to an automatic equipment identification (AEI) method and an AEI system. The AEI method includes the following steps: monitoring tag information carrying a train number and sent by a train radio frequency identification (RFID) tag, and starting a camera device to take an image of the area on a train where a train number is located; after positioning a character zone in the image and splitting the character zone from the image, identifying the train number in the character zone; comparing the identified train number and the train number sent by the RFID tag, sending data indicating the train number to an external preset address if the identified train number is identical to the train number sent by the RFID tag, and sending an alarm message if the identified train number is not identical to the train number sent by the RFID tag. The invention adopting the technical scheme has the advantages that the automatic image identification method and the RFID tag identification method are creatively combined, and the results from the two methods verify each other, so as to reduce wrong and omitted train number reading, and improve the AEI accuracy.

The invention discloses an automatic feeding type reinforcing steel bar fixed-length cutting device which comprises a base. Rotating shafts are rotationally arranged on the top of the base through twopairs of left and right first supports, transmission roller wheels are fixedly installed on the rotating shafts, the rear end of the rotating shaft on the left side is further fixedly provided with agear, the top of the base is fixedly provided with a first gear motor through a supporting base, and a semicircular gear is fixedly installed on a motor shaft at the front end of the first gear motor, supporting rods are fixedly arranged on the left side and the right side of the top of the base, a top plate is fixedly arranged on the tops of the supporting rods, a cutting machine is arranged below the top plate, a lifting rod is fixedly connected to the top of the cutting machine, the lifting rod penetrates through the top plate and is in sliding connection with the top plate, and a liftingbaffle is fixedly connected to the top end of the lifting rod. The semicircular gear is driven by the gear motor to rotate anticlockwise, therefore, reinforcing steel bars are automatically fed rightwards, manual control is not needed, a cam is rotated to drive the cutting machine to move up and down so as to cut off the reinforcing steel bars, and the cutting efficiency is high .

A method for controlling single serial-interface multi-CPU includes receiving serial-interface switchover command sent from control terminal by source CPU, changing state information sent to serial-interface management module by source CPU according to said serial-interface switchover command and switching serial-interface from source CPU to another CPU by serial-interface manage module according to changed state information. The system used for realizing said method is also disclosed.

The invention discloses a board carving machine. The board carving machine comprises a base; the base is fixedly mounted on the ground; a movable worktable mechanism is arranged on the surface of the base; a door-shaped bracket is arranged above the base; the bottom ends of stand columns of the door-shaped bracket are fixedly mounted on parts, on two sides of the base, of the ground; a through groove is formed in the upper surface of a cross beam of the door-shaped bracket in the length direction; concave grooves as long as the through groove are respectively formed in the upper surface of parts, on two sides of the through groove, of the cross beam; slide mechanisms are mounted in the concave grooves; lifting rotating mechanisms are fixedly mounted at the lower ends of the slide mechanisms; a multi-arm carving mechanism is fixedly mounted below the lifting rotating mechanism; a controller is arranged on the surface of one stand column of the door-shaped bracket; and the controller is electrically connected with the movable worktable mechanism, the slide mechanisms, the lifting rotating mechanisms and the multi-arm carving mechanism. The board carving machine has the beneficial effects of simple structure and high practicability.

The invention discloses a rapid stone breaking-screening device for a building. The rapid stone breaking-screening device comprises a bottom plate and a breaking bucket, wherein a support is arranged at a bottom of the bottom plate, a plurality of support arms are connected to a sidewall of the breaking bucket, a crank mechanism is rotationally connected to a bottom of each support arm through a bearing, and a mounted bearing is connected to each crank mechanism through a first rotary shaft and arranged on the bottom plate; a driven gear is installed on a first rotary shaft at a left side, a first motor is arranged on the bottom plate, and a drive gear is installed on a motor shaft at a top end of the first motor and engaged with the driven gear; and a second motor is arranged at the centre of a top of the crushing bucket, a second rotary shaft is connected to a motor shaft at a bottom end of the second motor, a crushing blade is installed on the second rotary shaft, and a filter screen is further arranged at a bottom of the breaking bucket. According to the rapid stone breaking-screening device disclosed by the invention, the broken stone is screened through the arrangement of the filter screen; and the stone in the breaking bucket can be driven to swing to increase breaking efficiency, and stone screening can also be accelerated to prevent the filter screen from being blocked through crank structures.

The embodiment of the invention discloses an automatic lane changing control method and device and a vehicle. The method comprises the following steps: according to an obtained lane changing request,determining a to-be-changed target lane of a current vehicle, and obtaining lane line information, output by a vehicle-mounted camera on the current vehicle, of the target lane; determining a turningangle of a steering wheel on the current vehicle according to the lane line information; and controlling the steering wheel according to the turning angle to enable the current vehicle to drive into the target lane. Compared with the prior art, the steering angle of the steering wheel is determined according to the lane line information of the target lane, and then the steering wheel is controlledaccording to the steering angle, so that the current vehicle is enabled to drive into the target lane, automatic lane changing is achieved, manual control is not needed, and the automatic driving requirement is met.

The invention discloses a novel full-automatic grinding machine. The novel full-automatic grinding machine comprises a rectangular machine body which is fixedly installed on the ground. A sliding workbench mechanism is arranged on the surface of the rectangular machine body and provided with an indexing electromagnetic sucker clamping mechanism. A hollow stand column is arranged on the surface of the rectangular machine body and is internally provided with a feeding telescopic mechanism in the vertical direction. The feeding telescopic mechanism is provided with a sharpening mechanism perpendicular to the feeding telescopic mechanism. A controller is arranged on the outer surface of the hollow stand column. The novel full-automatic grinding machine has the beneficial effects of being simple in structure and high in practicability.

The invention discloses a system and a method of piezoelectric electricity self-generating speed and distance intelligent monitoring. The system comprises a speed and distance intelligent monitoring unit and a piezoelectric electricity self-generating unit. The speed and distance intelligent monitoring unit comprises a front piezoelectric belt and a rear piezoelectric belt which are laid under a road face in transversal and spaced arrangement and an intelligent controller. The intelligent controller is composed of an amplifying circuit module, a filter circuit module, a hysteresis comparator circuit module and a microprocessor module which are in sequential connection. An output end of the microprocessor module is connected with a digital readout warning plate. The piezoelectric electricity self-generating unit comprises a plurality of piezoelectric transducers, a rectification filter circuit and a storage battery. The method comprises the steps: 1, storage and supply of piezoelectric self-generated electricity and electric energy; 2, real-time collection and processing of a signal; 3, processing and display of speed information; and 4, processing and display of distance information. The system is novel and reasonable in design, environment-friendly, economical, capable of guaranteeing safe and rapid travel of a vehicle and reducing occurrence of traffic accidents and convenient to popularize and use.

The invention provides a station taxi queuing management system and a method, and the station taxi queuing management system and the method are designed for the problems that a taxi waiting system in the prior art at a crowded area like an airport, a railway station and the like is incapable of scheduling and controlling vehicles effectively. The station taxi queuing management system comprises a drive module, a first sensor module, a second sensor module and a control module, wherein each enqueue brake and each dequeue brake are provided with the control module, and the control module is used for controlling the enqueue brakes and the dequeue brakes to be turned on or turned off. The first sensor module is respectively arranged on the enqueue brake and the dequeue brake to detect the state of the enqueue brake and the dequeue brake. The second sensor module is respectively arranged at the inlet and the outlet of each queuing queue for statistics of traffic flow. The control module is connected with each drive module, each first sensor module and each second sensor module to collect data, and controls switching-on and switching-off of the enqueue brake and the dequeue brake according to the data. The station taxi queuing management system and the method can be applied to the field of controlling taxes.

The invention belongs to the technical field of lithium batteries, in particular to a lithium battery with the effects that the structure is simple, and the automatic heating and heat insulation can be realized. The lithium battery comprises a case, a battery cell, a protecting board, a front cover, a heating device and a temperature sensor, wherein the battery cell is accommodated in the case, the protecting board is arranged at the front end of the battery cell, the front cover is arranged at the front end of the protecting board, the output end of the temperature sensor is electrically connected with the input end of the heating device through a circuit arranged in the protecting board, and in addition, the heating device and the temperature sensor are respectively arranged in the case. Compared with the prior art, the lithium battery has the advantages that the temperature sensor and the heating device are arranged in the battery, the temperature sensor is adopted for detecting the temperature inside the battery, when the temperature inside the battery is lower than the normal discharging temperature of the lithium battery, the heating device is automatically controlled to work, the battery is heated, and when the battery restores to the normal work temperature, the heating device automatically stops working, so the constant temperature effect is reached, the lithium battery can also be normally and safely used in severe cold environment, and the application range of the lithium battery is expanded.

The invention discloses a device for quickly cutting and crushing forage of animal husbandry. The device comprises a base; the top of the base is fixedly provided with a cutting box through a supportframe; the left side and the right side of the inner bottom of the cutting box are respectively rotatably connected with one lower round plate through a first rotating shaft and a second rotating shaft; the left side and the right side of the top of the cutting box are respectively fixedly provided with a first speed reduction motor and a second speed reduction motor; the motor shafts at the bottom ends of the first speed reduction motor and the second speed reduction motor pass through the top wall of the cutting box and are respectively fixedly connected with one upper round plate; a crankshaft is fixedly connected between the lower round plate and the upper round plate at the left side, and a crankshaft is fixedly connected between the lower round plate and the upper round plate at theright side; a plurality of connecting rods are respectively rotatably connected at the positions of the crankshaft journals; the right end of the connecting rods at the left side are hinge with a plurality of first cutting blades; the left ends of the connecting rods at the right side are hinged with a plurality of second cutting blades; and the first cutting blades are matched with the second cutting blades. According to the invention, forage is crushed by a plurality of cutting blades matched with each other, and vertically adjacent cutting blades move back and forth to cut the forage, so that the forage is prevented from falling directly after cutting for one time, so that the cutting effect is better and the efficiency is high.

The invention relates to the technical field of educational toys, and particularly discloses a robot with a sterilizing device. The robot with the sterilizing device comprises a robot cavity and a motor, wherein a sterilizing device is arranged in the robot cavity and comprises a disinfectant storage chamber; a motor is rotatably connected with a stirring column; the stirring column is provided with stirring blades and a cam; a piston cylinder is arranged on the right side of the cam; a piston and a piston rod is arranged in the piston cylinder; the other end of the piston rod is attached to the outline of the cam; the piston cylinder is further provided with a one-way air inlet valve and a one-way air outlet valve; the one-way air outlet valve is connected with an air bag; a box body is arranged on the outside of the air bag; an automatic valve is arranged at an outlet of the air bag; a control mechanism for the automatic valve is arranged on the inner wall of the box body; the automatic valve is connected with a venturi tube; a throat portion of the venturi tube communicates with the disinfectant storage chamber through a suction tube; and an outlet of the venturi tube is connected with a sprayer through a pipe. The invention aims to solve the problem that bacteria on the surface of the robot can infect a user.

The invention discloses a server dual hot backup system, and belongs to the technical field of backup. The system comprises a first server and a second server; the first server comprises a first heartbeat release module, a first heartbeat subscription module and a first master-salve switching module, and the second server comprises a second heartbeat release module, a second heartbeat subscription module and a second master-salve switching module; when the first server is a master server, the first heartbeat release module is used for sending a first heartbeat signal; the second master-salve switching module is used for switching the second server into the master server when the times of not receiving the first heartbeat signal exceed a threshold; when the second server is the master server, the second heartbeat release module is used for sending a second heartbeat signal; the first heartbeat subscription module is used for obtaining the first heartbeat signal and the second heartbeat signal; and the first master-salve switching module is used for switching the first server into the master server when the server startup time of the first heartbeat signal is later than the server startup time of the second heartbeat signal.

The invention discloses a carving-molding all-in-one machine for rare metal. The carving-molding all-in-one machine for the rare metal comprises a base which is fixedly mounted on the ground. A movable rotary workbench mechanism is arranged on the surface of the base. A gate-type support is arranged above the base. The bottom ends of stand columns of the gate-type support are fixedly mounted on the ground on the two sides of the base. A through groove is formed in the upper surface of a transverse beam of the gate-type support in the length direction of the transverse beam. Grooves same as the through groove in length are formed in the positions, on the two sides of the through groove, of the upper surface of the transverse beam correspondingly. A horizontal sliding mechanism is mounted in the grooves. A lifting rotating mechanism is fixedly mounted at the lower end of the horizontal sliding mechanism. Tool changing carving mechanisms are fixedly mounted on the lower portion of the lifting rotating mechanism. A controller is arranged on the surface of one of the stand columns of the gate-type support and electrically connected with the movable rotary workbench mechanism, the horizontal sliding mechanism, the lifting rotating mechanism and the tool changing carving mechanisms. The carving-molding all-in-one machine for the rare metal has the beneficial effects of being simple in structure and high in practicability.

The invention relates to an intellectualized animal-force power generation device, which comprises a driving wheel, wherein the driving wheel is connected with an electric generator through a transmission mechanism; the driving wheel is connected with an animal-force connecting rod; the animal-force connecting rod is radially arranged at the edge of the driving wheel; the animal-force connecting rod is used for connecting an animal; a magnetic separator is arranged at the end of the animal-force connecting rod; the end of the connecting rod is fixed on the body of the animal through the magnetic separator; the magnetic separator is connected with a controller; and the controller receives external control signal for releasing lock to control the separation of the magnetic separator, thus the end of the animal-force connecting rod is separated from the animal. By using the intellectualized animal-force power generation device provided by the invention, the technical problems that in the prior art, the animal-force power generation device is instable in power generation in the animal power generation process, and the animals are not easy to control and require to be artificially supervised and controlled are solved; and the intellectualized animal-force power generation device has better stability and can control the animals.

The invention relates to an automatic pipe end flattening machine, which belongs to the technical field of an end flattening machine. The invention provides an automatic pipe end flattening machine capable of machining a workpiece in one step as long as the workpiece is arranged on a feeding device and stable in machining quality. In order to solve the technical problems, the invention adopts the technical scheme as follows: the automatic pipe end flattening machine comprises a power head assembly, a stander, an automatic feeding device, an automatic grabbing device, an automatic clamping device, an automatic unloading device and an automatic collecting device, the power head assembly is installed on the stander, the stander on one side of the power head assembly is provided with the automatic feeding device, the stander on the other side of the power head assembly is provided with the automatic collecting device, the stander on the tail end of the automatic feeding device is provided with the automatic grabbing device, and the automatic clamping device which is arranged on the top of the stander fixes the workpiece into a working area of the power head assembly. The automatic pipe end flattening machine is used for flattening ends of a pipe.

The invention discloses a method and a device for controlling screen backlight, which is characterized in that the method comprises: receiving a screen backlight trigging instruction; inquiring the attribute of taking-effect screen backlight corresponding to a time slot containing the current time point in preset information; and according to the attribute of taking-effect screen backlight, controlling the screen backlight. The method and the device for controlling screen backlight of the invention realize the automatic control of screen backlight and do not need manual control by inquiring the attribute of taking-effect screen backlight corresponding to a time slot containing the current time point in preset information according to the mode of controlling the screen backlight by the attribute of taking-effect screen backlight.

The invention discloses a full-thread anchor rod pre-tightening force exerting device capable of achieving automatic anchor unloading and an operation method. The full-thread anchor rod pre-tightening force exerting device comprises a front transverse beam, a rear transverse beam and an anchor unloading device for clamping and releasing an anchor rod, the front transverse beam and the rear transverse beam are respectively connected with two hydraulic telescopic oil cylinder supporting columns, the middle of the front transverse beam is provided with a cone-shaped nut, and the end portion of the cone-shaped nut is provided with a sleeve which is movably matched with the anchor unloading device; the front transverse beam is attached to a tray of the anchor rod; the rear transverse beam is matched with the anchor unloading device; the middle of the rear transverse beam is matched with the anchor unloading device, the telescopic oil cylinder supporting columns are driven by a pneumatic oil pressure pump, and the output end of the pneumatic oil pressure pump is connected with a controller. The full-thread anchor rod pre-tightening force exerting device achieves automatic anchor unloading, is convenient to operate and use, high in pre-tightening force exerting efficiency, and beneficial to giving full play to supporting potential of the high-strength full-thread anchor rod, and guarantees safe and efficient production of coal mine enterprises.

The invention relates to a flat-layer locking device for an elevator. The device comprises a locking motor (1), a rotating mechanism (2), clamping groove boards (4), guide bearings (5), connecting rods (6) and proximity switches (7). The locking motor (1) is fixed on a frame of an elevator trolley. The center of the rotating mechanism (2) is connected with the locking motor (1). The two sides of the rotating mechanism (2) are each connected with the corresponding guide bearing (5) through one connecting rod (6). Each clamping groove board (4) is fixed on a stand column. Each clamping groove board (4) is provided with a clamping groove. Each proximity switch (7) is arranged on the corresponding connecting rod (6) and is in signal connection with the locking motor (1). When the elevator moves vertically to arrive at a preset position, the proximity switches (7) output signals, the locking motor (1) operates, and the rotating mechanism (2) pulls the connecting rods (6) so as to push the guide bearings (5) to be locked into the clamping grooves; on the contrary, the guide bearings (5) are released. Compared with the prior art, the device has the advantages of being simple in structure, high in reliability and good in balance.

The invention discloses a windmill flexible positioning device for a white car body welding production line. The windmill flexible positioning device for the white car body welding production line comprises a rotary table rack, wherein a vertically arranged and rotatable windmill rotary plate is arranged on one side of the rotary table rack; a drive device for driving the windmill rotary plate torotate is arranged on the rotary table rack; multiple positioning stations arranged uniformly are arranged on a plate body of the windmill rotary plate; detachable positioning mechanisms for clampingworkpieces are arranged on the positioning stations; a station switching mechanism for controlling a rotation position of the windmill rotary plate is arranged between the windmill rotary plate and the rotary table rack; and an automatic emergency stop mechanism is arranged between the rotary table rack and the windmill rotary plate. The windmill flexible positioning device for the white car bodywelding production line provided by the invention is simple in structure, easy to maintain, low in cost, easy to control, good in universality, and capable of being adaptable to flexible positioning of multiple platform multi-car switching.

The invention provides a dendrobe seedling environment contrast experiment system based on Internet of things. The dendrobe seedling environment contrast experiment system comprises an application layer, a communication layer and a sensing layer, wherein the application layer is a monitoring center server; the communication layer comprises a Wifi wireless router and a zigbee wireless gateway; the sensing layer is mounted and distributed in a contrast test chamber; the sensing layer comprises a temperature sensor, a humidity sensor, an illumination sensor, an ultraviolet sensor and a video probe; and the monitoring center server is connected to the zigbee wireless gateway through the Wifi wireless router. A valuable and rare seedling growth environment monitoring system is constructed by using an Internet of things technology, the influence of environmental parameters on seedlings is tested through the adjustment of different environmental parameters in the seedling process, optimal dendrobe seedling growth parameters are obtained on the basis of certain screening tests, the growth situation of dendrobe under a natural state is simulated in the whole system, and long-time manual control and interference is not needed.

The invention relates to a robot used for systematically managing and controlling ecological breeding of aquatic products of fishes and shrimps. The robot comprises a moving device, a scattering device is installed at the front end of the moving device, a sampling device is installed on the left side of the moving device, the moving device comprises a moving baseboard, a moving lifting hole is formed in the middle portion of the moving baseboard, a moving fixing mechanism is arranged in the moving lifting hole, two moving driving mechanisms are arranged at the lower end of the moving baseboard, the two moving driving mechanisms are symmetrically located on the left and right sides of the moving baseboard, and a floating air cushion is installed at the lower end of the moving baseboard. Bymeans of the robot, the problems can be solved that in existing processes of ecological water quality sampling studying and aquaculture, a person needs to drive floating equipment to carry out movingoperation on the water surface, conduct sampling treatment on a studied water area and scatter feed and liquid medicine to feed the aquatic products; the function of systematically managing and controlling ecological breeding of the aquatic products can be achieved.

The invention discloses a fire-fighting floor tile. The fire-fighting floor tile comprises a floor tile, wherein a plurality of fire-fighting cavities are symmetrically arranged in the floor tile, fire-fighting nozzles are slidably inserted in the fire-fighting cavities, fixing seats are arranged on the inner bottom walls of the fire-fighting cavities, right-angle pipes are fixedly embedded in thefixing seats, and one ends, far away from the fire-fighting cavities, of the right-angle pipes extend into the floor tile and are commonly connected with a water inlet pipe. According to the fire-fighting floor tile, the right-angle pipes are connected with pressure cavities in a sliding sealing manner, so that the fire-fighting nozzles achieve the effect of automatically ascending and spraying,water is prevented from entering the fire-fighting cavities and influencing the service life of the fire-fighting floor tile through sealing plates when the fire-fighting nozzles spray water to extinguish fire, the fire-fighting nozzles automatically spray water when reaching a specified height through spraying channels and the pressure cavities, the change of the external environment temperatureis converted into the mechanical action of a piston and a push rod through thermal expansion liquid, opening and closing of a water inlet pipe are automatically controlled through the linkage of the push rod and a rubber plug, and the automatic control capability and the reliability of the fire-fighting floor tile are improved.

The present invention provides an automatic testing interference preventing method and apparatus for an Android mobile terminal. The method comprises the following steps: executing a test command in a test script; determining whether the command is executed successfully or not; when determining that the command is not executed successfully, starting to detect whether a cause of not executing the command successfully is interference of an abnormal event, wherein the abnormal event is a popup or skip of an application interface that is unrelated to the test; and if the cause is interference of the abnormal event, automatically closing or overlooking the abnormal event, and re-executing the command. The apparatus comprises: an execution module, a first determination module, a detection module and an interference preventing module. According to the automatic testing interference preventing method and apparatus for the Android mobile terminal provided by the present invention, an accuracy rate and efficiency of a whole test can be improved.

The invention relates to a system for aerating water body, in particular to a solar automatic aeration system and a control method thereof. The solar automatic aeration system charges a storage battery by using solar energy and the combination of a solar photovoltaic component, the storage battery, a control device, the aeration device and an oxygen content testing device, and supplies power to an aeration device to realize aeration. The control method is used in the control device for processing the signal of oxygen content in the water body detected by the oxygen content testing device, comparing the processed signal with an initial value set in a single-chip of the control device and then immediately sending a signal for aeration or stopping aeration. The system and the method have the advantages of solar power generation with renewable resources, energy saving, environment protection, labour saving, labour cost saving and timely control over oxygen content of water environment.

The invention relates to the field of building material processing, in particular to a building material drying device. The building material drying device comprises a drying barrel with a heating function, a stirring shaft and a stirring rod. The stirring rod is fixedly connected to the stirring shaft, and a first movable block moving in the vertical direction and a second movable block moving inthe transverse direction are further included. The second movable block is transversely and slidably connected to the first movable block, and the stirring shaft is rotationally connected to the second movable block. A first driving mechanism for driving the first movable block to move in the vertical direction is arranged on the outer side of the first movable block, and a second driving mechanism for driving the second movable block to move in the transverse direction is arranged on the outer side of the second movable block. According to the scheme, the drying effect of the drying barrel is improved.

The invention discloses an automatic steel bar cutting-off device capable of adjusting the cut-off length. The automatic steel bar cutting-off device comprises a base, wherein a left transmission roller wheel and a right transmission roller wheel are rotationally arranged above the base through a support; a speed reducting motor is further arranged at the top of the base, a rotating disc is arranged on a motor shaft at the top end of the speed reducing motor, a strip-shaped opening is formed in the right side of the rotating disc, a sliding chute is formed in the top of the strip-shaped opening, a sliding block is slidably connected to the sliding chute, a positioning stud is fixedly connected to the sliding block, the top end of the positioning stud is rotationally connected with a connecting rod, and the right end of the connecting rod is hinged to the left end of a rack; and supporting rods are fixedly arranged on the left side and the right side of the top of the base respectively,a top plate is fixedly arranged at the tops of the supporting rods, a mounting seat is fixedly arranged at the bottom of the top plate, the mounting seat is arranged on the right side of the transmission roller wheels, and the top of the mounting seat is fixedly provided with an electric steel bar shear. According to the automatic steel bar cutting-off device, the distance between the positioningstud and the circle center of the rotating disc can be adjusted to adjust the cut-off length of a steel bar, the steel bar is automatically cut off by the electric steel bar shear when the steel baris stopped, so that manual control is not needed, the manual labor amount is reduced, and the use is more convenient.

The invention discloses a method for adjusting the starting compensating moment of an elevator automatically. The method for adjusting the starting compensating moment of the elevator automatically comprises the following steps that A, a weighing self-learning condition is set, the operating state of the elevator is detected in real time through a controller of an elevator system, and when the operating state of the elevator meets the weighing self-learning condition, the weighing self-learning work mode is started; B, in the weighing self-learning work mode, when the elevator reaches each weighing self-learning storey, a weighing device detects the no-load weight of the weighing self-learning storey and outputs no-load weight data to the controller of the elevator system; C, the weighing offset is worked out through the controller of the elevator system according to the no-load weighing data; and D each time the elevator starts, the starting compensating moment is re-calculated by the controller of the elevator system according to the current load data and the weighing offset output by the weighing device, the starting compensating moment data are output to a motor driving device of the elevator system, and the motor driving device drives a motor to generate the starting compensating moment according to the starting compensating moment data.