31results about How to "Low probability of escape" patented technology

The invention relates to a beast catching cage with a prompting function. The beast catching cage comprises a beast catching cage body, a first cage door, a second cage door, a switch, a power source and an alarm, and is characterized in that the first cage door is arranged at an opening of the beast catching cage body, the second cage door is arranged at a certain position of the beast catching cage body, the certain position of the beast catching cage body is close to the first cage door and is separated from the first cage door by a distance of 20cm, both the first cage door and the second cage door are higher than the beast catching cage body, the power source and the high-power alarm are arranged in the beast catching cage body, the switch is arranged at the bottom of the first cage door, the power source is connected with the alarm and the switch by wires, the first cage door and the second cage door are supported by flexible sticks, and wild boars can sequentially knock down the sticks for supporting the first cage door and the second cage door when the wild boars enter the beast catching cage body, so that the first cage door and the second cage door can be simultaneously closed, the switch at the bottom of the first cage door can be in contact with the ground when the first cage door is closed, and loud alarm sound can be generated by the alarm. The beast catching cage has the advantages of simple structure and easiness in manufacture.

The invention relates to a Loxostege sticticalis L. imago feeding appliance. The Loxostege sticticalis L. imago feeding appliance comprises three parts, i.e., a base, hoods and covers, and is characterized in that the base is a flat plate with a plurality of positioning devices, the hoods are transparent hollow columns with two unclosed ends respectively, a plurality of through holes are distributed in the covers, one end of each hollow column is detachably and fixedly connected onto the positioning device, the other end of each hollow column is closed by the corresponding cover and is detachably fixed, and the through holes in the covers enable the internal parts of the hollow columns to be communicated with the external part. The appliance provided by the invention has the advantages that since most eggs laid daily by imagoes during experiments are left on egg laying paper, not only can the counting of the eggs be facilitated, but also the eggs are very convenient to store and original data with more information can be obtained more easily; the imagoes are thoroughly prevented from escaping during feeding and replacement of the egg laying paper, the utilization ratio of laboratory spaces and resources is improved, and the superiority of the design is more remarkable when the quantity of repetitive experiments is larger.

The invention discloses a low light level detector which is based on a third generation proximity image intensifier and performs local gating at normal temperature. The low light level detector comprises a detector shell, wherein the detector shell is divided into an upper cavity and a lower cavity; a light measurement CCD, a video acquisition module, a field programmable gate array, a liquid crystal driving module, a power supply and a display screen are sequentially arranged in the upper cavity; one end, which is connected with the light measurement CCD, outside the upper cavity is providedwith a lens A; a pushbutton is arranged outside the other end of the upper cavity; a liquid crystal board, a third generation proximity type magnetic mirror array image intensifier, an optical fiber taper and an imaging CCD are sequentially arranged in the lower cavity; one end, which is connected with the liquid crystal board, outside the lower cavity is provided with a lens B; and the lens A andthe lens B are parallelly arranged. The detector automatically performs local gate control on light intensity, has wider dynamic application range, and can normally work and clearly image within thelight intensity range of between 10<-8> and 10<5>lx.

The invention provides a printing material for a ceramic core, a preparation method thereof, and a preparation method for a ceramic core, and relates to the technical field of three-dimensional printing rapid prototyping. The printing material for a ceramic core includes molding powder, calculated in parts by weight , the molding powder includes 85-93.5 parts of refractory aggregate, 4.5-10 parts of reinforcing agent, 1-2.5 parts of hardener and 1-2.5 parts of dispersant. Utilizing the printing material for ceramic cores can alleviate the technical problems that the existing ceramic cores need to use molds in the preparation process, which causes the molds to be easily wasted, and the lack of printing materials for ceramic cores suitable for 3DP technology in the prior art, to achieve Reduce costs and achieve the purpose of fast printing.

The invention discloses a portable and simple fishing gear and an installation method in the technical field of fishing. The top and bottom of the round rod are respectively equipped with a connecting clip and a connecting slot. The outer wall of the round rod is symmetrically installed with two Set the same connecting plate, the outer wall of the connecting plate is inserted with a plastic cylinder through a T-shaped slot, the top of the plastic cylinder is provided with an inlet, and the outer wall of the bottom of the plastic cylinder is equipped with fishing net fixing plates. The bottom of the plastic cylinder is equipped with a buffer tank with a slope, the bottom of the buffer tank is equipped with a network access channel, and the bottom outlet of the network access channel is equipped with a beard rope. The bottom of the body is provided with a fishing net through the perforation on the fishing net fixing plate, and the buffer tank body, the net entry channel and the barber rope are all in the inner cavity of the fishing net. The portable and simple fishing gear provided by the invention has a simple structure and is easy to disassemble. , each part can be disassembled and put into the packing box, which is very convenient to carry.

The invention provides a method for multichannel dynamic grouping switching of multi-beam parabolic antennas and aims to provide a method for quickly finishing high-dynamic target incoming signal detection, performing continuous reliable guidance and saving device resources. The technical scheme is that n-path signals output by a multi-beam offset-focus feed source field are connected to m radio frequency switching switches through radio frequency cables, a connecting method is that channels having the same position in p rectangular areas integrally averagely divided are connected to the same radio frequency switching switch; at a target signal admission stage, the radio frequency switching switches are sequentially switched to scan the p rectangular areas, target signal detection is finished; after detecting target admission, the radio frequency switching switches determine whether to perform dynamic grouping switching operation with whether target signals fall into the grouping edge serving as the grouping switching judging basis; and after the target signals enter the main beam coverage area and a main tracking receiver performs locking, the radio frequency switching switches are switched to enable auxiliary beams corresponding to a current communicating channel to surround a main beam.

The invention provides a capture device for anti-drone with a retrieval function, which includes a head, a tail, winglets and a propeller structure; a capture device control system is provided in the head, and the capture device control system includes an information collection module, a control unit and the propeller motor; the information acquisition module includes an image acquisition module, a laser radar scanning module, and a short-range electromagnetic wave detection module, and the image acquisition module, a laser radar scanning module, and a short-range electromagnetic wave detection module are respectively connected with the control unit; the propeller motor and the propeller Structural connection; the tail is set behind the head, with a catch net inside; the winglets are set on the head and connected to the control unit; the capture device also includes a microwave / radio wave transmitting device, and the microwave / radio wave transmitting device is in the capture device Activates when falling or after falling. The invention provides a capture device with a high capture rate and can be recycled, so that the escape possibility of a target drone is low and the utilization rate of the capture device is improved.

The invention discloses an image enhancer for improving the detection performance of a low-light-level imaging system at normal temperature. The image enhancer comprises a photocathode and a microchannel plate which are arranged oppositely, a front electrostatic focusing electron optical system and a rear electrostatic focusing electron optical system which are sequentially arranged from the photocathode to the microchannel plate between the photocathode and the microchannel plate; a fluorescent screen which is arranged outside the microchannel plate, and a magnetic mirror array device which is arranged between the front electrostatic focusing electron optical system and the rear electrostatic focusing electron optical system. The image enhancer expands the effective utilization of low-light-level electron, reduces the escape probability of emergent electron at the photocathode in a magnetic mirror, more effectively accumulates optoelectronic signals at normal temperature and achievesthe enhancement to extremely weak light signals, thus achieving clear imaging at the illumination intensity of 10<-8>lx.

The invention discloses a photon counter based on a magnetic mirror; a glass window is arranged on the pipe wall of a pipe shell, the inner surface of the glass window is provided with a photocathode, four groups of focusing electrodes and microchannel plates are arranged in the pipe shell, the four groups of focusing electrodes are enclosed into a rectangular cavity, the outer side of a focusingelectrode b is sequentially provided with the microchannel plates and anodes at intervals, the upper and the lower ports of a microchannel plate are in alignment with the upper and the lower ports ofthe focusing electrode b, and a magnetic mirror structure is arranged in the rectangular cavity enclosed by the four groups of the focusing electrodes to form a magnetic mirror field. Through the photon counter, the method can significantly improves the number of photon which finally reaches the anodes so as to improve the photon counting level.

The invention provides an anti-electromagnetic-interference anti-unmanned-aerial-vehicle catching device comprising a head, a tail, a small wing and a propeller structure. A catching device control system is arranged in the head and comprises an information collection module, a control unit and a propeller motor. The information collection module comprises an image collection module, a laser radarscanning module and a close-range electromagnetic wave detection module. The image collection module, the laser radar scanning module and the close-range electromagnetic wave detection module are connected with the control unit. The propeller motor is connected with the propeller structure. The tail is arranged behind the head and is internally provided with a catching net. The small wing is arranged at the head and is connected with the control unit. A compensating circuit is further arranged in the catching device and can conduct opposite offsetting with electromagnetic wave, received by the close-range electromagnetic wave detection module, of the propeller motor of the catching device. The anti-electromagnetic-interference anti-unmanned-aerial-vehicle catching device can catch an unmanned aerial vehicle accurately, thus the escape possibility of the target unmanned aerial vehicle is low, interference is smaller, and catching is more accurate.