49results about How to "Realize automatic switching control" patented technology

The invention discloses a minimum-duty-ratio semiconductor laser peak value optical power testing device and method, and the method comprises the steps that a high-speed photovoltaic conversion and pre-amplification module carries out the photovoltaic conversion of an optical signal of a high-speed laser pulse and the pre-amplification of a signal, thereby generating a high-speed electric pulse signal; the electric pulse signal is transmitted to a high-speed pulse optical maintaining and sampling module and a high-speed pulse frequency and widening testing module; the high-speed pulse optical maintaining and sampling module carries out the maintaining and sampling of the high-speed electric pulse signal, generates an integral maintaining signal, solves a pulse mean power, and transmits the pulse mean power to an FPGA controller; and the high-speed pulse frequency and widening testing module achieves the accurate measurement of frequency and pulse width of the high-speed electric pulse signal, and enables the measurement data to be transmitted to the FPGA controller. The method can achieve the detection of the peak value of a narrow pulse width pulse signal with shorter rise time and minimum duty ratio, and can achieve the instrumentation.

The invention discloses a minced fish making machine, which comprises a cup body with a feeding port with a first storage chamber on the top of the cup body, a cup cover for the cover and the first storage chamber on the top of the feeding port, the cup cover A pull ring is provided at the center of the top surface, a second accommodating chamber is provided in the cup body, and a third accommodating chamber communicated with the top and the second accommodating chamber is provided in the bottom wall on the left side of the second accommodating chamber. The right side is provided with an assembly block extended upwards, the outer wall of the right side of the assembly block is provided with a first sliding groove, the first sliding groove is provided with a first screw rod extended up and down, and the bottom of the second accommodating cavity is provided with a support There is a notch on the left side of the pallet, a control chamber is provided at the center of the pallet, a second slide groove is provided on the top wall of the control chamber, and a guide rod is provided in the second slide groove, on which the slide rod slides. The first sliding block is connected, and an upwardly extending steering shaft is provided in the control chamber. The steering shaft penetrates the top wall of the supporting plate and extends into the second accommodating chamber. The tail end of the steering shaft in the second accommodating chamber is fixed with an upwardly extending external spline shaft.

The invention discloses even-stirring equipment which comprises an even-stirring part, an output part arranged at the bottom of the even-stirring part and a boss part arranged at the bottom of the output part. The boss part is of a hollow structure, a balancing weight is embedded in the inner bottom of the boss part, an accommodating cavity is arranged in the even-stirring part, multiple sets of bucket troughs are arranged in the bottom of the accommodating cavity, a port is arranged in the bottom of each bucket trough, a first sliding connecting groove penetrating the port and extending leftwards and rightwards is arranged in the port, a first sliding connection part is arranged in the first sliding connection groove, an output hole is arranged in the first sliding connection part, a first spiral thread hole is arranged in the left side of the first sliding connection part, a first spiral rod is connected in the first spiral thread hole in spiral thread fitness, the first spiral rod is connected with a first electrical rotating machine, multiple sets of collecting zones are evenly arranged on the outer surface of the front and rear sides of the output part, a connection slot matched with the bottom of each port is arranged in the output part, a first chamfer groove and a second chamfer groove are arranged on front and rear sides of the bottom of each connection slot, and the bottom tail of the first chamfer groove is communicated with the collecting part on the front side of the output part. The even-stirring equipment is simple in structure, reasonable in design, convenient in operation, capable of realizing automatic stirring and automatic discharging and transferring and even in stirring, stirring efficiency is improved, supply requirements are met, and use cost is low.

The invention discloses a separated type automatic feeding equipment for pig breeding, which comprises an upper body and a lower body installed at the bottom of the upper body. A material storage cavity is arranged in the upper body, and multiple groups of funnel-shaped grooves are arranged at the bottom of the material storage cavity. The bottom of the funnel-shaped groove is provided with a through hole, and the through hole is provided with a first sliding groove extending horizontally through the through hole and extending to the left and right sides. The first sliding groove is provided with a first sliding member, and the first sliding member is provided with The discharge hole is provided with a first threaded hole inside the right side of the first sliding member, and the first threaded hole is connected with the first screw rod in cooperation with the internal thread, and the first screw rod is connected with the power of the first motor. Multiple groups of feeding windows are provided, and a communication groove is provided in the lower body opposite to the bottom of the through hole. The front and rear sides of the bottom of the communication groove are respectively provided with a first inclined channel and a second inclined channel. The eating windows on the side are connected and arranged; the invention has a simple structure, realizes isolated eating, and has high working efficiency.

The invention discloses an automatic switching method of a heat pipe cooling system and an air-conditioning equipment and a device thereof, belonging to an air conditioning and refrigeration technology and aiming at providing an automatic switching and controlling method between an air-conditioning equipment and a heat pipe cooling system and a device for realizing the method. The method utilizes a temperature sensor arranged in the heat pipe cooling system to collect indoor and outdoor temperatures and calculate the indoor and outdoor temperature difference, conducts logical judgment according to the temperature difference, and switches and controls the air-conditioning equipment and the heat pipe cooling system according to logical judgment results; the device comprises the air-conditioning equipment and the heat pipe cooling system; and entrances of an evaporator fan (4) and a condenser fan (9) are respectively provided with one temperature sensor (5) electrically connected with an intelligent module (2), and the intelligent module (2) is respectively and electrically connected with the evaporator fan (4), the condenser fan (9) and the air-conditioning equipment (1). The invention has the advantages of low energy consumption, high automation degree and the like, and can be used in heating equipment rooms for various electronic equipments.

The invention discloses a solar LED street lamp with the automatic cleaning function. The solar LED street lamp comprises a supporting column, a supporting rod and a bracket, wherein the supporting rod is arranged on the right side of the supporting column, and the bracket is arranged on the left side of the supporting column; a photovoltaic panel assembly is arranged on the upper part of the left side of the bracket; a cleaning part is arranged on the upper part of the right side of the bracket; a first sliding groove is formed in the left side of the bracket; a communicating groove which extends along the first sliding groove is formed in the top of the first sliding groove; a first cavity is formed in the position, at the right side of the first sliding groove, in the bracket; a first screw which extends to the left side and the right side is transversely arranged in the first sliding groove; a right extending section of the first screw penetrates through the inner wall of the bracket and is connected to the inner wall of the bracket in a rotating mode; the tail end of the right side of the first screw extends into the first cavity and is provided with a first conical wheel; a second sliding groove is formed in the bottom of the first cavity; a second screw is arranged in the second sliding groove; the tail end of the right side of the second screw is in power connection with a first motor; the second screw is in threaded fit connection with a first sliding block; a second motor is arranged in the top of the first sliding block; and a main conical wheel which extends into the first cavity and is in rotating fit with the first cavity is arranged at the top of the second motor.

The invention discloses an automatic feeding device for pig breeding, which comprises a feeder box and a rotating mechanism connected to the bottom of the feeder box in rotation and fit, a hopper with a first cavity is arranged on the top of the feeder box, and a second cavity is arranged in the feeder box body, the bottom wall on the left side of the second cavity is provided with a third cavity connected to the top and the second cavity, the right side of the third cavity is provided with a fixed block extending upward, and the right side of the fixed block The outer wall is provided with a first chute, the first chute is provided with a first screw extending up and down, the bottom of the second cavity is provided with a bottom plate, a groove is provided on the left side of the bottom plate, and a control chamber is provided in the middle of the bottom plate , the top wall of the control chamber is provided with a second chute, the second chute is provided with a guide rod, the guide rod is slidably connected with the first slider, and the control chamber is provided with an upwardly extending rotating shaft, which runs through the top of the bottom plate The wall extends into the second cavity, and the end of the rotating shaft in the second cavity is fixed with an upwardly extending external spline shaft.

The invention discloses a solar LED street lamp with the cleaning function. The solar LED street lamp comprises a supporting column, a supporting rod and a bracket, wherein the supporting rod is arranged on the right side of the supporting column, and the bracket is arranged on the left side of the supporting column; a photovoltaic panel assembly is arranged on the upper part of the left side of the bracket; a cleaning part is arranged on the upper part of the right side of the bracket; a first sliding groove is formed in the left side of the bracket; a communicating groove which extends along the first sliding groove is formed in the top of the first sliding groove; a first cavity is formed in the position, at the right side of the first sliding groove, in the bracket; a first screw which extends to the left side and the right side is transversely arranged in the first sliding groove; a right extending section of the first screw penetrates through the inner wall of the bracket and is connected to the inner wall of the bracket in a rotating mode; the tail end of the right side of the first screw extends into the first cavity and is provided with a first conical wheel; a second sliding groove is formed in the bottom of the first cavity; a second screw is arranged in the second sliding groove; the tail end of the right side of the second screw is in power connection with a first motor; the second screw is in threaded fit connection with a first sliding block; a second motor is arranged in the top of the first sliding block; and a main conical wheel which extends into the first cavity and is in rotating fit with the first cavity is arranged at the top of the second motor.

The invention discloses an information prompting plate device for a highway. The information prompting plate device comprises an arm rod, a base arranged at the bottom of the arm rod and a holding plate arranged on the position above the end face of the left side of the arm rod. A monitoring device for monitoring and shooting vehicles which violate traffic rules is arranged in the center of the bottom end face of the holding plate, an information prompting part is arranged on the position above the left side of the holding plate, and a clearing part is arranged on the position above the right side of the holding plate. The end face of the right side of the clearing part and the end face of the left side of the arm rod are fixedly connected, a first sliding-connecting groove is formed in the left side of the holding plate, and an opening groove extending along the first sliding-connecting groove is formed in the top of the first sliding-connecting groove. A first manipulating cavity is formed in the position, on the right side of the first sliding-connecting groove, of the inside of the holding plate, a first blot extending leftwards and rightwards is arranged in the first sliding-connecting groove, the extension section of the right side of the first stud penetrates through the inner wall of the holding plate and is connected with inner wall of the holding plate in an operating fit mode, and the tag end of the right side of the first stud enters the first manipulating cavity and is provided with a first tooth-shaped wheel.

The invention discloses a fish flesh pureed beating machine device which comprises a cup body; the top of the cup body is provided with a feed port with a first accommodating cavity; the top of the feed port is provided with a cup cover for covering the first accommodating cavity, and the center of the top face of the cup cover is provided with a pull ring; the cup body is internally provided with a second accommodating cavity, the bottom wall of the left side of the second accommodating cavity is internally provided with a third accommodating cavity having the top part in communication arrangement with the second accommodating cavity; the right side of the interior of the third accommodating cavity is provided with an assembly block arranged in an upward extending manner; the outer wall of the right side of the assembly block is internally provided with a first sliding groove; the first sliding groove is internally provided with a first spiral rod arranged in an up-and-down extending manner; the bottom of the interior of the second accommodating cavity is provided with a support plate; the left side of the support plate is provided with a groove port, the center of the interior of the support plate is provided with an operation cavity; the top wall of the interior of the operation cavity is provided with a second sliding groove; the second sliding groove is internally provided with a guiding sliding rod; the guiding sliding rod is slidingly connected with a first sliding block; the operation cavity is internally provided with a steering shaft arranged in an upward extending manner; the steering shaft passes through the top wall of the support plate and extends into the second accommodating cavity, and the tail end of the steering shaft in the second accommodating cavity is fixedly provided with an external splined shaft extending upwards.

The invention discloses a small-sized automatic feeding device for pig breeding, which comprises a feeder box and a rotating mechanism connected to the bottom of the feeder box in rotation. A hopper with a first cavity is arranged on the top of the feeder box. Cavity, the bottom wall on the left side of the second cavity is provided with a third cavity connected to the top and the second cavity, and the right side of the third cavity is provided with a fixed block extending upwards, and the right side of the fixed block There is a first chute in the side outer wall, a first screw extending up and down in the first chute, a bottom plate in the bottom of the second cavity, a groove on the left side of the bottom plate, and a control valve in the middle of the bottom plate. cavity, the top wall of the control cavity is provided with a second chute, the second chute is provided with a guide rod, the guide rod is slidably connected with the first slider, and the control cavity is provided with a rotating shaft extending upwards, and the rotating shaft runs through the bottom plate The top wall extends into the second cavity, and the end of the rotating shaft in the second cavity is fixed with an upwardly extending external spline shaft.

The invention discloses a fish meat mincing machine, which comprises a cup body with a feeding port with a first accommodating chamber on the top of the cup body, a cup cover for the cover and the first accommodating chamber provided on the top of the feeding port, the cup A pull ring is provided at the center of the top surface of the cover, a second storage chamber is provided in the cup body, and a third storage chamber connected to the top and the second storage chamber is provided in the bottom wall on the left side of the second storage chamber. The right side of the assembly block is provided with an assembly block extended upwards, the outer wall of the right side of the assembly block is provided with a first slide groove, the first slide groove is provided with a first screw rod extended up and down, and the bottom of the second accommodating cavity is provided with The supporting plate, the left side of the supporting plate is provided with a notch, the inner center of the supporting plate is provided with a control cavity, the top wall of the control cavity is provided with a second sliding groove, the second sliding groove is provided with a guide bar, and the guide bar is on the The first sliding block is connected to the sliding, and the steering shaft extended upwards is provided in the control chamber. The steering shaft penetrates the top wall of the supporting plate and extends into the second accommodation chamber. Extended external spline shaft.

The invention discloses an information notice board with a self-wiping effect on highways. The information notice board comprises an arm lever, a base and a supporting board, wherein the base is arranged on the bottom part of the arm lever, the supporting board is arranged above the end surface of the left side of the arm lever, a monitoring device is arranged on the center part of the bottom of the supporting board and is used for monitoring and shooting the vehicles which get out of line, an information notice part is arranged above the left side of the supporting board, a cleaning part is arranged above the right side of the supporting board, the right end surface of the cleaning part is fixedly connected with the left end surface of the arm lever, a first sliding and connecting slot is arranged in the left side of the supporting board, an opening slot extending along the first sliding and connecting slot is arranged on the top part of the first sliding and connecting slot, a first operating and controlling cavity is arranged in the supporting board on the right side of the first sliding and connecting slot, a first stud is arranged in the first sliding and connecting slot and extends left and right, the right extended section of the first stud penetrates the inner wall of the supporting board and is connected in an operation and matching manner, the tail of the right side of the first stud enters the first operating and controlling cavity and is provided with a first toothed gear, a second sliding and connecting slot is arranged on the bottom of the first operating and controlling cavity and is provided with a second stud, and the tail of the right side of the second stud is connected with a first motor.

The invention discloses a switching control method of smart television devices, and a mobile terminal. The switching control method comprises the steps of: finding out a plurality of the smart television devices existing in a local area network in which the mobile terminal is located; detecting signal intensity values of the plurality of smart television devices at regular intervals; and switching the mobile terminal to establish communication connection with the smart television device having the maximum signal intensity value if one smart television device currently communicating with the mobile terminal is not the smart television device having the maximum signal intensity value. By adopting the switching control method and the mobile terminal, the purpose of automatically switching the smart television devices according to variation of distance between the mobile terminal and a smart television is achieved.

The invention discloses a mixing machine for building construction. The mixing machine comprises a material barrel, a hopper with a first containing cavity is arranged at the top of the material barrel, a second containing cavity is formed in the material barrel, a third containing cavity with the top communicated with the second containing cavity is arranged in the bottom wall of the left side of the second containing cavity, and a bearing block extending upwards is arranged on the right side of the interior of the third containing cavity; a first slippage groove is formed in the outer wall of the right side of the bearing block, a first spiral rod extending up and down is arranged in the first slippage groove, a fixing plate is arranged at the bottom of the interior of the second containing cavity, an opening groove is formed in the left side of the fixing plate, and a driving cavity is formed in the middle end of the interior of the fixing plate; a second slippage groove is formed in the top wall of the interior of the driving cavity, a guide movement rod is arranged in the second slippage groove, a first slippage cavity is connected to the guide movement rod in a slippage manner, and a rotary pin shaft extending upwards is arranged in the driving cavity and penetrates the top wall of the fixing plate to penetrate the second containing cavity; and the rotary pin shaft tail in the second containing cavity is fixedly provided with an upwards-extending outer spline shaft.

The invention discloses a feed feeding device for pig breeding, which comprises a feeder box and a rotating mechanism connected to the bottom of the feeder box in rotation and fit. The top of the feeder box is provided with a hopper with a first cavity, and the feeder box is provided with a second cavity. body, the bottom wall on the left side of the second cavity is provided with a third cavity connected to the top and the second cavity, the right side of the third cavity is provided with a fixed block extending upward, and the right side of the fixed block The outer wall is provided with a first chute, the first chute is provided with a first screw extending up and down, the bottom of the second cavity is provided with a bottom plate, a groove is provided on the left side of the bottom plate, and a control chamber is provided in the middle of the bottom plate , the top wall of the control chamber is provided with a second chute, the second chute is provided with a guide rod, the guide rod is slidably connected with the first slider, and the control chamber is provided with an upwardly extending rotating shaft, which runs through the top of the bottom plate The wall extends into the second cavity, and the end of the rotating shaft in the second cavity is fixed with an upwardly extending external spline shaft.

The invention provides a capacitor pulse voltage testing device and method, and the device comprises a commercial power supply circuit module, a pulse voltage generation module, a control circuit module, a PLC module, and a display module. The PLC module is used for control, and the device achieves the automatic switching control, and meets the demands of capacitor testing parameters in different capacity ranges. The device avoids the direct contact of a high-voltage port with a human body, and solves a technical problem of preventing equipment from causing possible damages to a tester to maximum degree.

The invention discloses a flameless burner control system, a flameless low-NOx burner and a control method thereof. Through application of a control system taking an SCU460 ignition controller as a core, different actions of a plurality of sets of valves can be automatically controlled according to the flameless combustion and flameless combustion temperature conditions; automatic switching control over different working modes of flameless combustion and flame combustion is achieved, and manual switching is not required, so that the control system is easy to operate, and safe and reliable; meanwhile, the flameless combustion and flame combustion of the burner applying the system can be controlled through the SCU460 ignition controller; during flame combustion, when the furnace temperatureis lower than the set temperature, the burner is ignited by an ignition electrode, and the flame can be detected by a detection electrode; the stable and reliable low-temperature combustion process isensured; in the flameless combustion phase, when the furnace temperature is higher than the set temperature, and the ignition electrode is not ignited; gas and air are injected into a furnace for combustion, and surrounding flue gas can be entrained by high-speed airflow injected into the furnace to take part in combustion; and local high temperature of the flame is reduced greatly, and NOx is reduced quickly.

The invention relates to a coupling decoupling network lightning surge generator. The lightning surge generator comprises a host machine and a coupling decoupling network device, and the host machine is connected with the coupling decoupling network device through a parallel interface input / output wire. Compared with lightning surge generators in prior art, the coupling decoupling network lightning surge generator has the advantages that the size is small, the usage is convenient, the automatic switching control of the coupling mode in terms of programs is achieved, and the like.

The invention discloses an equipment for planting crops, which comprises a feed body and a guide body arranged at the bottom of the feed body. The left and right sides of the feed body are symmetrically provided with pull rings for facilitating the overall movement of the device. The feed body is provided with The cavity, the bottom of the cavity is provided with multiple groups of tapered grooves, each tapered groove is provided with an opening at the bottom, and the opening is provided with a first sliding groove extending through the opening and extending to the left and right sides, and the first sliding groove is provided with The first sliding part, the first sliding part is provided with a hole groove, and the inside of the right side of the first sliding part is provided with a first screw hole. Connected with a driving machine, multiple sets of collection parts are provided on the outer surfaces of the front and rear sides of the material guide body, and the guide body corresponding to the bottom of the opening is provided with a connecting groove, and the front and rear sides of the bottom of the connecting groove are respectively provided with a first chute And the second chute, the bottom end of the first chute is connected with the collection part on the front side of the material guide body; the present invention has simple structure, reasonable design, easy operation, automatic stirring and automatic discharge, improves fertilization efficiency, and meets supply requirements. Required and able to isolate dust.

The invention discloses a plywood hot-pressing sizing device. The plywood hot-pressing sizing device comprises a frame body, a heating part is arranged on the upper portion of the left side of the frame body, multiple heaters are arranged on the end face of the right side of the heating part in an up-and-down manner, a pressure exerting part is arranged on the upper portion of the right side of the frame body, and an adjusting and control part is arranged on the portion, between the pressure exerting part and the heating part, of the frame body; a first sliding groove is formed inside the right side of the frame body, the top of the first sliding groove is provided with an empty groove which is formed in an extending manner along the first sliding groove, and a first transmission groove is formed in the portion, at the right side of the first sliding groove, in the frame body; a first spiral rod which extends towards the left side and the right side is arranged in the first sliding groove, the right side extending section of the first spiral rod penetrates through the inner wall of the frame body and is rotationally connected with the inner wall of the frame body in a matched manner, and the tail of the right side of the first spiral rod penetrates into the first transmission groove and is provided with a first toothed connection wheel; the bottom of the first transmission groove is provided with a second sliding groove, a second spiral rod is arranged in the second sliding groove, the tail of the right side of the second spiral rod is connected with a first electric motor, and a first sliding block is connected to the second spiral rod in a threaded and matched manner; and a second electric motor is arranged in the top of the first sliding block, and the top of the second electric motor is provided with a main tooth connection wheel which penetrates into the first transmission groove and is rotationally connected with the first transmission groove in a matched manner.

The invention discloses an integrated numerical control carving machine tool which comprises a support base. A numerical control carving machine capable of sliding on the support base according to a track is arranged above the left side of the support base, a carving drill bit capable of steering is arranged above the right side of the numerical control carving machine, a dust removal part is arranged above the right side of the support base, a workpiece part is arranged at the position, between the numerical control carving machine and the dust removal part, on the support base, and a first sliding groove is formed in the position, between the workpiece part and the dust removal part, inside the right side of the support base; a communication groove arranged along the first sliding groove in an extending manner is formed in the top of the first sliding groove, a first driving cavity is formed in the position, on the right side of the first sliding groove, in the support base, and a first screw rod extending to the left and right sides is arranged in the first sliding groove; and an extending section on the right side of the first screw rod penetrates the inner wall of the support base, the extending section and the support base are in rotary fit, the tail end of the right side of the first screw rod extends into the first driving cavity and is provided with a first gear, the top of a second driving machine is provided with a main gear which extends into the first driving cavity and is in rotary fit connection with the first driving cavity.

The invention discloses an integrated CNC engraving machine tool, which includes a stand. A CNC engraving machine that can slide according to a trajectory is provided on the left side of the stand. A turnable engraving machine is provided on the right side of the CNC engraving machine. For the drill bit, there is a dust removal part on the right side of the holder. There is a workpiece part on the holder between the CNC engraving machine and the dust removal part. There is a first sliding groove inside the right side of the holder between the workpiece part and the dust removal part. The top of a sliding groove is provided with a connecting groove extending along the first sliding groove. A first driving cavity is provided in the bracket on the right side of the first sliding groove. A first driving cavity is provided in the first sliding groove extending to the left and right sides. The screw rod, the left extended section of the first screw rod penetrates the inner wall of the frame and is connected in rotation and fit. The right end of the first screw rod extends into the first drive cavity and is provided with a first gear. The bottom of the first drive cavity is provided with a third screw rod. Two sliding grooves. A second screw rod is provided in the second sliding groove. The right end of the second screw rod is connected to the first driver. The spiral thread on the second screw rod is connected with a first sliding block. The first sliding block A second driving machine is disposed in the top, and a main gear extending into the first driving cavity and connected in rotation is disposed on the top of the second driving machine.

The invention discloses a plywood heating sizing device. The plywood heating sizing device comprises a frame body, a heating part is arranged on the upper portion of the left side of the frame body, multiple heaters are arranged on the end face of the right side of the heating part in an up-and-down manner, a pressure exerting part is arranged on the upper portion of the right side of the frame body, and an adjusting and control part is arranged on the portion, between the pressure exerting part and the heating part, of the frame body; a first sliding groove is formed inside the right side of the frame body, the top of the first sliding groove is provided with an empty groove which is formed in an extending manner along the first sliding groove, and a first transmission groove is formed in the portion, at the right side of the first sliding groove, in the frame body; a first spiral rod which extends towards the left side and the right side is arranged in the first sliding groove, the right side extending section of the first spiral rod penetrates through the inner wall of the frame body and is rotationally connected with the inner wall of the frame body in a matched manner, and the tail of the right side of the first spiral rod penetrates into the first transmission groove and is provided with a first toothed connection wheel; the bottom of the first transmission groove is provided with a second sliding groove, a second spiral rod is arranged in the second sliding groove, the tail of the right side of the second spiral rod is connected with a first electric motor, and a first sliding block is connected to the second spiral rod in a threaded and matched manner; and a second electric motor is arranged in the top of the first sliding block, and the top of the second electric motor is provided with a main tooth connection wheel which penetrates into the first transmission groove and is rotationally connected with the first transmission groove in a matched manner.

The invention relates to the technical field of tail gas recovery treatment, in particular to a polypropylene VOCs treatment environment-friendly recovery system. The system comprises a flash evaporation replacement tail gas recovery system and a feeding hopper activator nitrogen pressure feed system. The flash evaporation replacement tail gas recovery system comprises a bag-type dust remover, a vacuum compressor unit, a water-vapor separation tank, a pre-condenser, a drying tower, a gas tail gas dehydration tower, a gas holder oxygen content analyzer, a gas oxygen content analyzer, a propylene recovery gas holder, a first communicating pipe, a second communicating pipe, a first gas exhaust holder switching valve and a first gas exhaust switching valve. The feeding hopper activator nitrogen pressure feed system comprises nitrogen buffer equipment and a nitrogen buffer tank, the input end of the nitrogen buffer equipment is communicated with the nitrogen tank, the output end of the nitrogen buffer equipment is communicated with the nitrogen buffer tank, and the output end of the nitrogen buffer tank is communicated with the nitrogen pipe network so that propylene can be recycled, the enterprise cost is reduced, the enterprise economic efficiency is improved, VOCs are prevented from being discharged, and the environmental protection property is improved.

The invention is suitable for the technical field of Beidou satellite communication, and provides a transmitting module of a Beidou active antenna, and the transmitting module receives a constant-voltage direct-current electric signal provided by a Beidou satellite communication terminal through a radio frequency coaxial cable. The transmitting module comprises a variable gain amplification unit used for carrying out power amplification processing on a first radio frequency signal after filtering processing based on a first gain; a power amplification unit, used for carrying out power amplification processing on the first radio frequency signal after the power amplification processing is started again; a switch control unit, used for acquiring a first field intensity signal corresponding to the power of the filtered first radio frequency signal and performing switch control on the power amplification unit based on the first field intensity signal; and a gain control unit, used for acquiring a second field intensity signal corresponding to the power of the first radio frequency signal after the power amplification processing is carried out again, and carrying out reverse adjustment on the first gain based on the second field intensity signal, thereby solving the problem that the antenna power amplifier is easy to damage.

The invention discloses a semiconductor structure, a self-annealing chip and a manufacturing method of the semiconductor structure. The semiconductor structure comprises an N-type MOSFET and a heating element which are connected in series between an excitation signal input end and a reference ground, wherein the grid electrode of the N-type MOSFET receives a bias voltage; when the N-type MOSFET is subjected to external radiation, the threshold voltage is reduced, and under the condition that the threshold voltage is reduced to be smaller than or equal to the bias voltage, the N-type MOSFET is conducted so as to control the heating element to heat; in the heating process, self-annealing is recovered, and under the condition that the self-annealing is recovered to be greater than the bias voltage, the heating element is controlled to stop heating; the heating element is located in the dielectric layer of the upper layer surface of the N-type MOSFET and is connected with the source electrode of the N-type MOSFET through the wiring layer. The settable area of the heating element in the semiconductor structure is not limited, the arrangement is flexible, meanwhile, the semiconductor structure can automatically start / close the thermal annealing treatment function according to the drifting condition of the threshold voltage of the N-type MOSFET, and the real-time performance and accuracy of thermal annealing treatment are effectively guaranteed.