20results about How to "Expand the effective range" patented technology

The present application provides for grouping user equipments (UEs) in a cluster and / or hierarchy. The packets may be based on a dynamically updated mean square error position / relative position map maintained at the transmission point. Furthermore, the grouping may be implemented in a hierarchical and cooperative manner such that some UEs in a higher level act as anchor UEs for other UEs in a lower level. In addition, the UE may be understood to be self-organized into a cluster of UEs. A cluster of UEs may be represented by a single representative UE to reduce signaling overhead between UEs in a given cluster of UEs and various anchor UEs and / or transmission points. Further, collaboration between UEs in the same cluster may be done by sensing and sharing between UEs a relative position estimate and a position estimate (MSE) associated with the relative position estimate.

The invention discloses precise mixing equipment and method for collagen solid production, the precise mixing equipment comprises an equipment bottom plate, a metering assembly, a sliding assembly, a mixing shell, an adjusting assembly and a self-cleaning assembly, first supports are symmetrically arranged on one side of the top of the equipment bottom plate, and a weighing table in the metering assembly is arranged on the tops of the first supports; stress brackets are uniformly arranged at the top of the weighing platform, and the tops of the stress brackets are fixedly connected with a storage barrel; in the feeding process, the metering assembly monitors the mass change of the raw materials to automatically complete the feeding process, manual participation in the feeding process is not needed, and the feeding precision of the equipment is guaranteed; in the mixing treatment process, the effective action range of the material mixing frame is expanded by utilizing the adjusting assembly, and the raw material mixing uniformity and the material mixing treatment efficiency of the equipment are improved; after material mixing is completed, the inner wall of the material mixing shell is automatically cleaned through the self-cleaning assembly, manual participation in the cleaning process is not needed, and the labor intensity of workers for cleaning equipment is relieved.

The present invention discloses a gas detection system and detection method for chemical safety, which belongs to the field of chemical gas detection. A gas detection system for chemical safety includes a shell and a detection chamber, and also includes: a detection unit arranged in the detection chamber, used to detect gas in a chemical plant; a dust cleaning unit arranged in the detection chamber, used to filter dust and the like in the gas during gas detection, wherein the detection unit can drive the dust cleaning unit to clean the filtered dust and the like; a storage unit arranged between the shell and the detection chamber, wherein the detection unit can drive the storage unit to adjust the relative position between the detection chamber and the shell; a vibration mechanism arranged between the storage unit and the detection chamber, wherein the storage unit can drive the vibration mechanism to drive the dust cleaning unit to vibrate; the present invention can overcome the problems of poor gas detection effect, difficulty in accurately finding the location of the problem, cumbersome use, and poor protection.

The application provides a transistor structure and a preparation method thereof, and the preparation method comprises the following steps: providing a semiconductor structure, the semiconductor structure comprising a substrate, a well region of a first conductive type, a gate oxide layer, a gate, a first side wall layer and a second side wall layer, etching the second side wall layer and the first side wall layer in sequence to form a first side wall and a second side wall, in a vertical direction, the height percentage of the second side wall relative to the height of the gate is 1% to 8%, performing a first ion implantation of a second conductive type on the substrate to form a lightly doped region, the second conductive type is opposite to the first conductive type, performing a second ion implantation of the second conductive type on the substrate to form a source-drain region, and the implantation angle of the first ion implantation is larger than the implantation angle of the second ion implantation. The preparation method of the transistor structure of the application can obtain a transistor structure with effectively inhibited hot carrier injection effect without an additional LDD mask.

The present invention discloses a smart construction site environment monitoring system, including a mounting column, decibel analyzers are evenly distributed on the outer shell of the mounting column, a solar panel is arranged on the top of the mounting column, and a camera is arranged on the supporting plate; a first cleaning brush and a sponge are arranged at intervals on the side of the rotating rod close to the solar panel, the first cleaning brush and the sponge are in active contact with the solar panel, and the second cleaning brush is in active contact with the remote PM2.5 collector probe and the remote PM10 collector probe respectively. The present invention provides a smart construction site environment monitoring system, which can focus on tracking areas with high decibel noise, expand the effective range of the camera collection area, and can also scrub the solar panel, the remote PM2.5 collector probe and the remote PM10 collector probe while adjusting the camera orientation to prevent dust adhesion from affecting lighting or affecting the accuracy of air quality detection.

The end milling cutter comprises a cutter handle and a cutter body which are connected, the cutter body extends along an axis and comprises a plurality of cutter points, the cutter points are located at the end, away from the cutter handle, of the cutter body and comprise a plurality of outer cutting bottom blades and a plurality of inner cutting bottom blades, and the inner cutting bottom blades are located between the outer cutting bottom blades and the axis. The inner cutting bottom edge and the outer cutting bottom edge have the same protruding height in the axis direction. The inner cutting bottom edge is also arranged between the axis and the outer cutting bottom edge, so that the effective cutting range of a tool nose of the end mill is expanded, bottom surface residues can be effectively removed without changing the tool, the cost increase and the efficiency reduction caused by tool changing are avoided, and the generation of tool marks is avoided; compared with a traditional end mill, the distance of necessary movement carried out for removing the residual materials in the bottom angle range in the bottom edge is shorter, the diameter of the end mill does not need to be reduced, the cutter rigidity of the end mill can be effectively improved due to the large diameter, the probability of cutter breakage is reduced, and the reliability of the end mill is improved.

This application relates to the field of filling machine technology and discloses a semi-automatic filling machine and filling method for polyurethane production. The machine includes a support frame, a swing arm hinged to one side of the support frame, a horizontal moving seat slidably disposed on one side of the swing arm, a vertical moving seat slidably disposed on the horizontal moving seat, a cylinder fixedly disposed on one side of the horizontal moving seat, and a connecting rod fixedly connected to one side of the horizontal moving seat. This invention adjusts the positions of the horizontal and vertical moving seats by adjusting the connecting rod, coordinating with the swing arm's movement to adjust the position of the filling gun within a fan-shaped range. Simultaneously, the positioning rod on the outer side of the filling gun retracts when the filling gun descends, contacting the outer wall of the barrel opening, thereby moving the freely swinging and movable horizontal moving seat. This ensures that the ring formed by the filling gun and the positioning rod is collinear with the barrel opening, improving centering accuracy and increasing the allowable visual error range for manual positioning.

The invention relates to a distance measurement method based on UWB and second wireless communication technologies, a computer readable storage medium and a program product. The limitation of the UWB technology on transmission power and effective distance measurement range is overcome. According to the method, connection between the devices and UWB parameter synchronization are achieved through the second wireless communication module, and it is ensured that the devices of the two parties can carry out accurate ranging communication. In a ranging task, both parties use UWB modules to send and receive SP3 frame types in a specified time slot, and a ranging round index and message round-trip and response time are recorded. The initiator generates and sends a first measurement report, wherein the first measurement report comprises Troud1 and Treply 2 measured by the initiator; and the responder generates and sends a second measurement report, wherein the second measurement report comprises the Treplay1 and the Tround2 measured by the responder. And finally, any party calculates the distance according to the measurement report data of the two parties. According to the method, the long-distance transmission advantage of the second wireless communication technology relative to the UWB is utilized, the defect that the effective distance of the UWB under the SP0 frame type is insufficient is overcome, the effective range of the distance measurement system is remarkably expanded, and meanwhile the high precision of distance measurement is kept.

The application discloses a nuclear industry waste transfer equipment, which comprises a grab, a turnover device, a transfer device, a cleaning device and a cover taking and sealing device, the turnover device is used for carrying the turnover of an inner barrel of a circulating barrel, the transfer device is used for supporting the movement of the cleaning device and the cover taking and sealing device, the cleaning device is used for cleaning an outer barrel of the circulating barrel, and the cover taking and sealing device is used for taking and sealing a cover of the circulating barrel; the grab moves along a straight line direction, a grabbing position of the grab intersects with a turnover stroke of the turnover device and a transfer stroke of the transfer device, and the end of the grab is arranged with the circulating barrel, so that the grab can respectively take and place the inner barrel from the circulating barrel and the turnover device, take and place the cleaning device and the cover taking and sealing device from the transfer device, and respectively hold the cleaning device and the cover taking and sealing device to perform cleaning, cover taking and cover sealing on the circulating barrel. The equipment can efficiently realize waste transfer operation, avoids the introduction of human error, and improves system safety. The application further provides a nuclear industry waste transfer method.

The invention discloses a resistance measuring circuit and a resistance value measuring device.The resistance measuring circuit comprises a power input end, a resistance measuring channel, a first reference resistance switching circuit, a current switching circuit and a control circuit, and the first current transmission end of the resistance measuring channel is connected with the power input end; the first end and the second end of the resistance measurement channel are respectively connected to two ends of a to-be-measured resistor; the first end of the first reference resistance switching circuit is connected with the second current transmission end of the resistance measurement channel, and the second end of the first reference resistance switching circuit is connected with the grounding end; the first end of the current switching circuit is connected with the second current transmission end of the resistance measurement channel, and the second end of the current switching circuit is connected with the grounding end; the invention aims to improve the measurement range of the resistance measurement device.

The invention discloses a silicon controlled rectifier dimming circuit, alternating current input obtains input voltage through a silicon controlled rectifier dimmer and a rectifying circuit, and the silicon controlled rectifier dimming circuit comprises a bleeder circuit, a first current control circuit, an energy storage capacitor, a second current control circuit and a discharge diode; two ends of the bleeder circuit are respectively connected with high and low potential ends of an input voltage, and the first current control circuit is connected with the high and low potential ends of the input voltage after being connected in series with the LED load to form a first series circuit; the energy storage capacitor is connected in series with the LED load; the second current control circuit is connected with the LED load and the energy storage capacitor in series to form a second series circuit and then is connected with the high-low potential end of the input voltage. The positive electrode of the discharge diode is connected with the positive electrode of the energy storage capacitor, and the negative electrode is connected with the positive electrode of the LED load. According to the invention, the bleeder time of the bleeder circuit is reduced, the loss of the bleeder circuit is reduced, the effective range of the input current is widened, and a larger bleeder current can be set on the basis of reducing the bleeder time so as to improve the compatibility of a lighting system.

The utility model relates to the technical field of irrigation devices, and discloses a spraying type irrigation device which comprises a base, a water tank is fixedly connected to the upper surface of the base, a water pump is fixedly connected to the upper surface of the base, a water pumping pipe is fixedly connected to the input end of the water pump, and the outer wall of the water pumping pipe is fixedly connected to the interior of the water tank. A conveying pipe is fixedly connected to the output end of the water pump, a connecting sleeve is fixedly connected to the outer wall of the conveying pipe, the lower surface of the connecting sleeve is fixedly connected to the upper surface of the base, a connecting pipe is rotatably connected to the interior of the connecting sleeve, and an adjusting sleeve is rotatably connected to the top end of the connecting pipe. According to the utility model, through the cooperation among the water tank, the water pump, the water pumping pipe, the conveying pipe, the connecting sleeve, the connecting pipe, the adjusting sleeve, the drainage pipe, the spray head, the worm gear, the worm and the handle, the effects of improving the spraying range and conveniently controlling the water yield during spraying are achieved.

The invention discloses a stirring piece assembly. The stirring piece assembly comprises a transmission shaft, a stirring cover and a tool bit arranged in the stirring cover. A containing groove is formed in the top of the stirring cover, the installation portion at the lower end of the transmission shaft is inserted into the containing groove and sleeved with the tool bit, and a through hole is formed in the wall of the stirring cover. The transmission shaft rotates to drive the stirring cover to rotate, the stirring cover drives the tool bit to rotate in the rotating process, and the stirring cover and the tool bit conduct stirring synchronously, so that the stirring range is greatly expanded, uniform cutting and stirring of food materials such as potatoes are achieved, and it is guaranteed that fine and consistent mashed potatoes are obtained. The mounting part is in interference fit with the accommodating groove through the rubber ring, so that the stirring cover can be quickly disassembled and cleaned. A protrusion is arranged on the edge of the bottom opening of the stirring cover and can effectively prevent the cutter head from rubbing the bottom of the stirring cup. The stirring device is ingenious in structure, high in stirring uniformity and convenient to clean and maintain.

This invention discloses a method for phytoremediation of cadmium-arsenic co-contaminated soil based on crop straw enhancement, comprising the following steps: S1, soil tillage and preparation; S2, modification of straw powder; S3, application of straw; S4, planting of remediation plants; S5, harvesting of plants: after the remediation plants have grown to maturity, they are harvested from the soil as a whole, completing the soil remediation. The method for phytoremediation of cadmium-arsenic co-contaminated soil based on crop straw enhancement provided by this invention, by applying specific high doses of straw in two forms—modified straw powder and straw segments—to the surface and deep soil layers respectively, can rapidly activate soil microbial activity, directionally regulate the soil microbial community structure, and enhance the activation and absorption of cadmium by kenaf; simultaneously, the microbial community macroscopically passivates arsenic in the soil, enhancing the arsenic capture and accumulation capacity of kenaf roots, thereby significantly improving the remediation of the entire contaminated soil.

The utility model discloses a novel efficient easy-to-clean mixer which comprises a gear ring, a mixing shell, a support roller, a first motor, a motor gear, a transmission gear, a connecting shaft, a first connecting block, a second connecting block, a transmission rod, a driven gear and a brush, the outer wall of the mixing shell is fixedly sleeved with the gear ring, and the gear ring is meshed with the driven gear; according to the stirring device, the third motor drives the stirring rod to rotate so as to stir materials, the second motor drives the first driven wheel to rotate through the first belt in the stirring process, so that the transmission rod pulls the stirring shaft to reciprocate, the effective action range of the stirring shaft and the stirring rod is expanded, the stirring is more sufficient, and the stirring efficiency is improved; the first motor drives the driven gear to rotate, so that the stirring shell rotates, the inner wall of the stirring shell is automatically cleaned in cooperation with the brush on the stirring rod, the situation that the stirring shell is corroded and damaged due to the fact that residues adhere to the inner wall of the stirring shell is avoided, and the service life of the stirring machine is prolonged.

The invention relates to plasma discharge equipment capable of generating spanning type induced vortexes and a use method of the plasma discharge equipment, and belongs to the technical field of active flow control. Vortex continuously generated by pulse modulation is promoted to periodically have higher convection speed and momentum flux on the basis of original characteristics, a traditional surface dielectric barrier discharge single-machine layout mode is broken, the limitation of existing plasma induced airflow in the aspect of flow control is solved, better flow control performance is achieved, and the service life of the surface dielectric barrier discharge device is prolonged. And better service performance is achieved in the aspects of flow separation, vortex rupture and the like.

This invention discloses a low-voltage cable junction box with an automatic drainage and dehumidification structure, including a junction box body. A dehumidification chamber is installed at the top of the junction box body. A semiconductor heating element is installed inside the dehumidification chamber, dividing the internal space of the dehumidification chamber into a condensation chamber and a heat dissipation chamber. The two sides of the semiconductor heating element are a cold surface and a hot surface, respectively. The cold surface is placed in the condensation chamber, and the hot surface is placed in the heat dissipation chamber. This invention uses the cold surface of the semiconductor heating element to condense water vapor in the air into liquid water. Simultaneously, multiple condensation screens are provided. A first heat-conducting surface quickly transfers cooling energy to the condensation screens, cooling them below the dew point temperature. When air flows through, water vapor more easily condenses into liquid water, adhering to the surface of the condensation screens and dripping to the bottom of the condensation chamber. This effectively reduces the humidity inside the junction box, reduces the risk of electrical components getting damp, and extends the service life of the equipment.

The present invention discloses a centralized oxygen generation and supply device and system used in a biosafety laboratory, comprising an oxygen generation and processing component, a lifting and handling component, a system control component, a seismic isolation installation component, a heat dissipation adjustment component, an experimental oxygen supply component and a compressor heat dissipation component. The output end of the air inlet fan body is provided with an air inlet pipe, and one end of the air inlet pipe is sleeved on the compressor body in the oxygen generation and processing component. The present invention uses the seismic isolation installation component to install the compressor body inside the installation shell, thereby improving the seismic performance of the device, and at the same time reduces the noise of the device during operation through seismic isolation, thereby avoiding excessive noise affecting the physical and mental health of the experimenters; the heat dissipation adjustment component is provided to expand the effective action range of the heat dissipation fan, improve the heat dissipation performance of the device, and avoid overheating and damage of the device; the lifting and handling component is provided to automatically complete the lifting and handling process of the oxygen storage tank, thereby reducing the labor intensity of the staff in filling oxygen and improving the practicability of the device.

The present invention discloses a portable buried pipe and cable route detection system, wherein the fish hanger is fixedly installed on the side of the working vessel through a hanger; the transmitting transducer array inside the fish hanger emits a low-frequency sound wave signal under the drive of the sonar electronic box; the receiving transducer array inside the fish hanger receives the echo signal of the buried pipe and cable, and the signal is input into the sonar electronic box; the sonar electronic box completes the emission, reception, processing and transmission of the low-frequency sound signal, and realizes the acoustic image display of the buried pipe and cable image and the pipe and cable position positioning through the low-frequency signal; since the detection system is hung on the side of the ship through the hanger, a large A frame or gantry crane is not required, and it is more portable; since the detection system is directly set on the ship's side, a towing body is not required, so the position positioning is accurate, thereby making the detected cable information more accurate. Since the detection system uses low-frequency signals for detection, the attenuation of the signal in the water is effectively prevented; through continuous large-scale imaging, the detection efficiency is higher.

The utility model discloses a mortar mixer which comprises a position adjusting assembly, a mixing shell and a mixing adjusting assembly, a rotating gear ring is in meshed connection with a connecting gear, the connecting gear is fixedly sleeved on the output end of a gear motor, the gear motor is uniformly fixed at the bottom of the mixing shell, and mounting side plates are symmetrically arranged on one side of the bottom of the rotating gear ring. According to the mortar stirring device, the stirring motor drives the transmission table and the supporting column to rotate, then the supporting column and the sliding groove are matched with each other, the stirring frame is driven to rotate to stir mortar, the position of the stirring frame is automatically adjusted through the stirring adjusting assembly in the stirring process, and the stirring treatment efficiency of the mortar stirring device is improved; the heat dissipation motor drives the heat dissipation fan to rotate to conduct air cooling heat dissipation on the stirring motor, meanwhile, the position adjusting assembly is matched to adjust the positions of the heat dissipation motor and the heat dissipation fan, the effective action range of the heat dissipation structure is expanded, and the heat dissipation performance of the equipment is improved.