94results about How to "Won't drift" patented technology

The invention discloses gas metering monitoring device and monitoring method. The device comprises a laser, a signal detector, a laser control module, a signal processing module, a data analysis module and a sample room, wherein the laser control module is connected with the laser and is used for driving the laser to transmit laser light with a specified wavelength to a sample gas in the sample room; the signal detector is used for acquiring a transmission signal passing through the sample gas in the sample room and sending the transmission signal to the signal processing module; the signal processing module is used for converting the transmission signal into the absorption spectrum of gas to be tested; and the data analysis module is used for analyzing the absorption spectrum of the gas to be tested to obtain the information of the gas to be tested. The metering monitoring scheme can not be influenced by moisture, dust and other factors and can increase the metering monitoring accuracy of the gas to be tested.

The invention belongs to the technical field of aquaculture, and in particular relates to a combined netting gear for culturing river crabs in purse seine in a lake, which is combined by a purse net, galion meshes and other netting gears to prevent river crabs from escaping. An outer purse net and an inner purse net are both fixed on a mao bamboo pile; the bottom of the inner purse net, a main galion mesh and an auxiliary galion mesh are fixed together and sunk into mud; the upper end of the inner purse net is provided with a gamma-shaped reverse covering net (an escape preventing net); the bottom of the outer purse net is inserted into substrate sludge by a ground anchor for fixing; cage meshes are arranged at the water bottom in the middle of the inner purse net and the outer purse net. The combined netting gear has the advantages that the escape of the river crabs can be effective prevented by using two layers of purse nets; the upper end of the inner purse net is provided with the reverse covering net, so that even if the river crabs can creep up to the upper end of the inner purse net and finally reach the reverse covering net, the river crabs can also drop into a purse seine region; the arrangement of the main galion mesh and the auxiliary galion mesh ensures that meshes cannot drift under the condition that the purse nets encounters heavy storm.

The invention provides a suspended marine power transmission device and belongs to the field of renewable energy sources. The structure of the device is different from that in an existing marine power transmission technology in the world, and the technology of the device is a brand-new technology. The device comprises a power transmission tower, a soft cabin platform, a soft hard cabin connecting column, a ballasted hard cabin, a soft cabin mooring anchor chain, a hard cabin mooring anchor chain, a piled anchor and a central piled anchor, wherein the soft cabin platform is a carrier of a power transmission wire and the power transmission device, and the displacement of the soft cabin platform is more than the total weight of loads; the ballasted hard cabin has a balance effect on the structure, so that the power transmission tower cannot tilt; the anchor chain is pulled tightly under the traction effect of ascending buoyancy of the soft cabin platform, so that the soft cabin platform cannot drift; as the soft cabin platform is arranged in relatively deep water and has a certain anti-heaving effect, the soft cabin platform cannot be influenced by sea wave disturbance; the power transmission tower cannot excessively swing and is used for power transmission like that on land. According to the device, the difficult problem of power transmission for construction of large-sized ocean and wind farms is solved, so that the device has very high promotional and useful values.

The embodiment of the invention provides a measuring weir measuring device. The measuring weir measuring device comprises a stepping motor, a ball screw which is driven by the stepping motor to move up and down, an electrode which is arranged at the second end of the ball screw, a probe which is driven by the ball screw to move up and down, a current sensor which sends out a triggering signal whenthe second end of the probe just makes contact with the liquid surface of liquid in a measuring weir and detects currents, and a processor which forwards the triggering signal to trigger the steppingmotor to stop working, wherein the second end of the electrode is kept in the liquid in the measuring weir, and when the second end of the probe makes contact with the liquid in the measuring weir, the electrode and the probe form a conductive circuit through the liquid in the measuring weir, the distance between the second end of the probe and the water head high point of the measuring weir is calculated according to the step number of the stepping motor, the height of the liquid surface of the liquid in the measuring weir is calculated according to the known second distance and the known first distance, and the seepage flow is calculated according to the height of the liquid surface of the liquid in the measuring weir.

The invention belongs to the power attachment facility field and relates to an installation tool of a pole bird-preventing device. The installation tool is characterized in that the installation tool includes a clamping device, an adjusting device and a fixing device; the clamping device includes a clamping rod and an adjusting rod; one side of the upper end of the adjusting rod is provided with a flange; a spring stopping block, a gear and a flange bearing are arranged in the clamping rod; the gear is provided with a zipper; a spring and a pull bar are arranged in a telescopic rod; the exterior of the telescopic rod is provided with a driving arm; the clamping rod is provided with a driven arm; the adjusting rod is provided with a pulley and a screw connected with the pull bar; the adjusting device comprises an adjusting plate; the adjusting plate is provided with a floating frame, a upper fixed pulley and a lower fixed pulley; one side of the floating frame is provided with a pressure spring and a cam; the floating frame is provided with a driving wheel; the fixing device comprises an adjusting shaft, a gear box and a mounting frame; a gear and a rack which are engaged with each other are arranged in the gear box; and the mounting frame is provided with a binding belt. The installation tool of the invention enables live-line working and can be operated by just one construction person. The installation tool can be suitable for the installation of a variety of line towers and can be conveniently popularized.

The invention relates to a lithium battery accessory processing apparatus, in particular to a pole piece dust removal apparatus for lithium battery production and processing. The pole piece dust removal apparatus for lithium battery production and processing aims to achieve the technical purposes that dust on pole pieces can be quickly removed, the dust which appears in the process of dust removaldoes not fly all over to do harm to workers. The pole piece dust removal apparatus for lithium battery production and processing comprises a base plate, a guide plate, a guide sleeve, a fixed plate,a placement plate, a first clamping block and the like. The guide rail is connected with the left side of the base plate. The guide sleeve is in sliding connection with the guide rail. The fixed plateis connected with the right end of the guide sleeve. The placement plate is connected with the upper side of the fixed plate. The pole piece dust removal apparatus for lithium battery production andprocessing achieves the effects that the dust on the pole pieces can be quickly removed, and the dust which appears in the dust removal process does not fly all over to do harm to the workers; and because of the manner that a chain is adopted to drive a first rotary rod to move left and right, a brush block is driven to move left and right to remove the dust on the pole pieces, surface dust removal can be carried out on the pole pieces quickly and completely.

The invention discloses a bias control method based on a double-parallel Mach-Zehnder modulator, and relates to the field of microwave photonics, optical fiber sensing or optical communication. According to the invention, low-frequency disturbance voltage with a fixed frequency is applied to three bias voltage control ends of the DPMZM; a modulator output signal is fed back to a bias control module by selecting a certain proportion, and after the signal is processed by hardware circuits such as photoelectric conversion, filtering, amplification, sampling and the like, the bias point voltage ofa branch corresponding to the DPMZM is calculated by a bias point control algorithm in the MCU. The bias point voltage and different-frequency disturbance signals of which the three fundamental wavesand the second harmonic waves are not overlapped are superposed and input to a DPMZM bias voltage control port. The three control ports use disturbance voltages with different frequencies, so that feedback information of the control ports is separated in a frequency domain, independent closed-loop control of the three control ports is realized, voltages of three bias points of the DPMZM are adjusted at the same time, and stable control of the DPMZM on any bias point is realized.

The invention discloses a firefighting lifesaving air cushion capable of automatically moving. The firefighting lifesaving air cushion capable of automatically moving comprises a walking device, an air cushion, an air bottle, a battery, a binocular visual system, a control system and the like, when arriving at a site in distress, after an object is found by the binocular visual system, the binocular visual system positions and tracks the object, predicts the falling point of the object, and sends information to the control system, the control system gives out control instructions, on one hand, the walking device is controlled to move toward the object falling point, and on the other hand, a draught fan and the air bottle are turned on to inflate the air cushion, so that the air cushion is filled with air in a shortest period, and the requirement of fast rescue is achieved; when a fallen person falls on the air cushion, the pressure in the air cushion rises sharply, when a set-up pressure of a safety valve is reached, the safety valve is opened, and impact pressure is relieved by the air cushion step by step, so that impact on the fallen person is reduced. The firefighting lifesaving air cushion capable of automatically moving has the advantages that the speed of air inflation is high, the firefighting lifesaving air cushion is capable of automatically moving, positioning is accurate, the pressure can be relieved step by step and the like; the fallen person can be effectively protected.

The invention discloses a robust visual target tracking method suitable for long-range tracking. The method includes: extracting positive and negative samples according to an initial frame image of avideo sequence and position information of a target in an initial frame, performing feature extraction on sample image blocks to obtain low-dimensional eigenvectors, using the linear support vector machine technique to initialize a target appearance model; performing logistic regression on the obtained support vector machine model, and estimating a target position for the target appearance model under a particle filtering framework; combining the median flow tracking algorithm and the current particle filtering algorithm to perform collaborative tracking, using the incremental reduction technique to update the appearance model online in the tracking process, and combining the original appearance model and new samples to update the appearance model online till the last frame is updated. Inthis way, the visual target tracking of the robust is achieved. The parallel complementation of the two-way tracking method with different mechanisms is achieved, and the problem of spatial redundancycaused by continuously generating new information in the tracking process can be solved.

The invention discloses a method for measuring the water content of soil by adopting a time length measurement technology in the field of measurement for the water content of soil, which aims at solving the problems of conventional researches in the field of measurement for the water content of soil. The method comprises the following steps of firstly, inserting a double-V soil probe into prepared soil to be measured; secondly, transmitting a high-frequency electromagnetic wave to the soil probe; thirdly, comparing the phase difference of the electromagnetic waves at a transmitting end and a receiving end to accurately calculate the transmission time of the electromagnetic waves in the probe, and finally calculating the water content of the soil according to a fitting formula of a relationship between the transmission time and the water content of the soil. According to the method, the limits of complexity, low accuracy, difficulty in the implementation of a hardware circuit and the like of a conventional soil water content measurement method in practical application are broken, and the method for measuring the water content of the soil by adopting the time length measurement technology is effectively implemented.

The invention discloses an electric leakage protection device which comprises a controller and a current detection device connected with a bus positive electrode and a bus negative electrode, the current detection device can detect current flowing through the bus positive electrode and the bus negative electrode, and then the controller judges whether electric leakage exists on the load side of the electric leakage protection device or not according to current changes. Corresponding processing is carried out during electric leakage, so that protection of the power supply equipment is realized. Meanwhile, the detection device only detects the current and is not connected to an original closed loop, so that the voltage of the bus positive electrode and the bus negative electrode does not drift, and the electric leakage condition of the bus positive electrode or the bus negative electrode can be judged under the condition that the requirement of a power supply system is not influenced.

The invention relates to a floating type marine anemometer tower structure. The floating type marine anemometer tower comprises a truss structure, haulage cables, a floating platform, a self-balancing platform, a ball joint, a connecting column, a counter weight, balance slings, an anchor cable and an anchor. The floating platform floats on the water. The self-balancing platform suspends in the water. The upper end of the connecting column is fixed on the lower portion of the ball joint, and the lower end of the connecting column is fixed on the self-balancing platform. The counter weight is arranged in the center of the lower portion of the self-balancing platform. The self-balancing platform is connected with the counter weight through the uniformly distributed balance slings. The anchor is arranged on the lower portion of the counter weight. The anchor is connected with the counter weight through the anchor cable. Buoyancy of the floating platform meets requirement of a whole anemometer tower. Deflection of the floating platform and the self-balancing platform which is arranged on the lower portion of the floating platform is realized through the ball joint. With the floating platform, the whole anemometer tower floats on the water, thus a huge pile foundation and a huge bearing platform are omitted; and the anchor is arranged at the bottom to ensure that the whole anemometer tower does not drift with wind.

The invention relates to the technical field of glass fiber processing equipment, and discloses a glass fiber product raw material crushing device. The glass fiber product raw material crushing devicecomprises a feeding mechanism. According to the glass fiber product raw material crushing device, a dust collection cover, a guide pipe, a dust collection box, a dust removal cloth bag and an exhaustfan are arranged in the feeding mechanism for cooperation so as to collect dust generated in the feeding process in time, air pollution is effectively prevented, the working environment of operatorsis improved, and therefore the body health of operators is guaranteed; during feeding, stones enter the dust collection cover after passing through a feeding port and a material guide pipe, dust mixedin the stones can be effectively prevented from reversely flapping into air by arranging the arched dust collection cover, a large amount of dust is sucked into the dust removal cloth bag in time under cooperation of the exhaust fan and the guide pipe, and the dust is prevented from flying out of the middle of the material guide pipe as much as possible; and the dust can be centrally treated through the dust removal cloth bag, and environmental protection and convenience are achieved.

The invention discloses a fermented grain quick cooling machine. The front end of a machine frame is fixedly provided with a feed cylinder of which the back end is open; the top of the circumferential surface of the feed cylinder is provided with a feed port, and the outer end wall is connected with an air induction tube; the machine frame is also rotatably connected with a cooling cylinder of which the front end is communicated with the feed cylinder, and the cooling cylinder is arranged obliquely downward from front to back; the cooling cylinder is driven by a power unit to rotate; the back end opening of the cooling cylinder is a discharge port; the front end opening of the cooling cylinder is fixed with a barrier ring plate; the middle part of the barrier ring plate is provided with a central hole communicated with the inner cavity of the cooling cylinder; the inner wall of the feed cylinder is fixed with a guide plate which penetrates through the central hole and extends into the inner cavity of the cooling cylinder; and the inner wall of the cooling cylinder is fixed with stirring teeth which protrude to the center of the cooling cylinder and are arranged spirally. The cooling machine has the advantages of high cooling efficiency, favorable effect and small occupied area.

The invention discloses a management device for pet life. The device comprises a shell, a bed body device arranged in the shell, a cleaning device used for cleaning excrement falling onto the bed bodydevice, a material box used for containing the excrement, a lower box device and a boxing device arranged below the lower box device. The bed body device comprises a frame body, a plurality of rod bodies arranged on the frame body, supporting rods arranged at intervals with the rod bodies and supporting parts used for supporting the supporting rods. After the supporting parts release supporting of the supporting rods, the supporting rods move downwards to increase the interval L. According to the invention, pets can live in the management device for a long time, excrement of the pets can be collected and treated, the invention guarantees that the pets do not have peculiar smells in the management device, the pet excrement is boxed and collected, the pet excrement can be treated conveniently, and therefore the pets can live in the management device for a long time.

The invention provides wall slotting equipment used for an industrial design, and relates to the field of industrial designs. According to the wall slotting equipment used for the industrial design, the left side of a transmission shaft is connected with an electric motor; the right side of the outer part of the transmission shaft is connected with a bearing in an interference fitting mode; a cover body is connected at the outer side of the bearing in a sleeving mode; the right side of a slide block is fixedly connected with the left side of the electric motor; the back surface of the inner wall of the cover body is equipped with a drive motor; the front surface of the drive motor is connected with a slotting cutter disc through a drive shaft; the right side of the cover body is equipped with a dust collecting mechanism; and a drive mechanism is mounted at the left side of the top of a mounting base. According to the wall slotting equipment provided by the invention, the cover body ismatched with the dust collecting mechanism for use, so that the dust collecting mechanism can collect dust which is wiped off from a wall through extrusion of the wall when the cover body drives a slotting guide disc to slot the wall, and therefore, the dust is collected in a process of blocking the dust from drifting away.

The invention discloses a photovoltaic module automatic stringing machine feeding device, which is characterized in that a stringing machine body is fixedly connected to the side wall of the top end of a foundation, a storage box is fixedly connected to the side wall of the top end of the foundation, a supporting column is fixedly connected to the side wall of the top end of the foundation, an annular supporting frame is connected to the side wall of the supporting columns in a penetrating mode, and the side wall of the bottom end of the annular supporting frame is fixedly connected with the side wall of the supporting column. According to the invention, through the push rod motor, the telescopic rod and the like, the push rod motor drives the telescopic rod to move downwards, the telescopic rod drives the connecting rod to move downwards, the connecting rod drives the bottom plate to move downwards, the sucking disc on the bottom plate adsorbs the photovoltaic module while the bottom plate pulls the elastic rubber cavity downwards, so that the space in the elastic rubber cavity is enlarged instantly, the pressure intensity is reduced, and external air and dust are sucked into the elastic rubber cavity through the through holes.

The invention provides a grinding machine used for optical fiber end surface grinding, and relates to the field of optical fibers. The grinding machine comprises a base, wherein a supporting column isfixedly mounted at the left side of the top of the base; a beam is fixedly mounted on the top of the supporting column; the bottom of the beam is fixedly equipped with an extruding electric pushing rod; a spring box is arranged below the extruding elastic pushing rod; and a grinding table electric pushing rod is fixedly mounted in the middle of the top of the base. According to the grinding machine used for optical fiber end surface grinding provided by the invention, the grinding table electric pushing rod is arranged, so that a grinding table can move up and down; the spring box is matchedwith a first return spring and a second return spring, so that auxiliary return after extrusion of an extruded body is completed; and the springs are arranged, so that auxiliary return after extrusionof fixators is completed; the extruded body is matched with an extrusion cone, so that fixator plates are fixed during grinding; and the fixators are arranged, so that multiple optical fiber end surfaces can be grinded at the same time, and therefore, efficiency is improved.