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112results about How to "Avoid bad influence" patented technology

Shielded pedestrian re-identification method based on teacher and student learning framework

The invention discloses a shielded pedestrian re-identification method based on a teacher and student learning framework. The shielded pedestrian re-identification method comprises the steps that firstly, a teacher network is trained, and the existing large-scale complete pedestrian data are used for simulating the training process of shielding pedestrian re-identification, and the process is achieved through a joint significant detection network with a cross-domain simulator, and the process is the teacher teaching process; then the teacher network is transmitted to the student network, and the student network is enabled to utilize the model of the teacher network to continue to train on the real small-scale pedestrian shielding data, and the process is the student practice process; and finally, through the teacher teaching and student practice process, a model with pedestrian discrimination and shielding robustness is obtained through training, and the model can be used for shieldingpedestrian re-identification. The shielded pedestrian re-identification method can greatly improve the effect performance of an existing pedestrian re-identification shielding task, and has a wide application value.
Owner:SUN YAT SEN UNIV

Self-cleaning sewerage system of waste compression station

The invention discloses a self-cleaning sewerage system of a waste compression station. The self-cleaning sewerage system of the waste compression station comprises an air inlet pipe, an air pumping fan, a water curtain filtering unit, an atomization device and a negative pressure device. The air inlet pipe is communicated with each waste compression station. The air pumping fan is installed on the air inlet pipe. The water curtain filtering unit is provided with an air inlet and an air outlet. The output end of the air inlet pipe is connected with the air inlet of the water curtain filteringunit. The negative pressure device is provided with an air inlet and an air outlet. The air outlet of the water curtain filtering unit is connected with the air inlet of the negative pressure device.The atomization device is provided with an air inlet and an air outlet. The air outlet of the negative pressure device is connected with the air inlet of the atomization device. The air outlet of theatomization device is connected with an air exhaust pipe. The negative pressure device of the self-cleaning sewerage system is capable of controlling the flowing speed of waste gas, bad smell in the waste gas is removed by the water curtain filtering unit, and the deodorized air is disinfected by the atomization device so as to reach the emission standard. The bad influence to the surrounding environment is avoided, and the city appearance and environmental sanitation are improved.
Owner:广州德中科技有限公司

Modular space truss structure light semi-submersible suspension cable deep sea net cage

ActiveCN111758641ADiluted unit usage costPossess the function of actively approaching and retractingClimate change adaptationPisciculture and aquariaMarine engineeringStructural engineering
The invention discloses a modular space truss structure light semi-submersible suspension cable deep sea net cage. The net cage is characterized in that a net cage framework is modularly constructed and expanded by truss nodes and truss rod pieces, and comprises a top surface truss, a semi-submersible truss arranged on the top surface truss, and a bottom surface truss; the top surface truss and the bottom surface truss are multilayer trusses in the inner and outer directions and comprise buoyancy adjustable layers and buoyancy non-adjustable layers; the semi-submersible truss comprises a buoyancy adjustable layer; and a plurality of groups of suspension cables are included and are arranged between the top surface truss and the bottom surface truss. The net cage framework is constructed ina modular design mode, the multi-layer truss structure meets the requirement for good strength and safety, the unit use cost of equipment is greatly reduced, and a road is laid for large-scale offshore culture; through active adjustment of buoyancy adjustable points, the top surface truss and the bottom surface truss have the active approaching and folding functions, rapid contraction of the netting and the culture space is achieved, rapid fish collection or transfer is achieved in cooperation with pumping, and external disasters such as storms are avoided.
Owner:深圳埃吉尔海洋科技有限公司

Transform domain underwater acoustic communication method based on chaotic spread spectrum

The invention discloses a transform domain underwater acoustic communication method based on chaotic spread spectrum, and the method comprises the following steps: S1, carrying out sampling of an environment channel at a transmitting end and a receiving end, obtaining an environment noise signal, and carrying out the FrFT processing of the environment noise signal, and obtaining an environment spectrum vector; S2, obtaining a double-chaotic sequence through an improved Logistic mapping structure, processing the double-chaotic sequence, and obtaining a pseudo-random phase through FrFT; S3, after the environment spectrum vector is matched with the pseudo-random phase, carrying out amplitude adjustment to obtain an FrFT domain basis function, and carrying out IFrFT on the FrFT domain basis function to obtain a time domain basis function; S4, performing baseband mapping on the time domain basis function of the transmitting end at the transmitting end to obtain a spread spectrum signal, and sending the spread spectrum signal to a receiving end; and S5, performing related demodulation on the spread spectrum signal at a receiving end through a time domain conjugate basis function of thereceiving end to obtain an information signal. The method has better concealment, anti-interference capability, anti-multipath capability and the like, and can realize reliable communication under a very low signal-to-noise ratio.
Owner:XIAMEN UNIV

Multi-frequency-band cooperative cognition spectrum sensing method

The invention relates to a multi-frequency-band cooperative cognition spectrum sensing method. Secondary users respectively send signal to noise ratios, confidences, business requirements, and spectrum detection results of multiple primary users to a spectrum sensing fusion center, primarily-selected cooperative secondary users are calculated and screened via the spectrum sensing fusion center, and the quantity of frequency bands are then distributed to the primarily-selected cooperative secondary users; the root-mean-square values of the signal to noise ratios of all the primarily-selected secondary users and the quotients between the signal to noise ratios of the primarily-selected secondary users are calculated, checked secondary users participating in cooperation are selected according to the relation between the quotients and a preset threshold of the signal to noise ratio, and the detection probability of the checked secondary users is adjusted; and with the combination of the signal to noise ratios of the checked secondary users and the adjusted average detection probability, the step of selecting the checked secondary users is returned again, final secondary users participating in cooperation are eventually obtained, the global detection probability of a weighted OR criterion cooperation is regarded as the final detection result of the spectrum sensing fusion center, and bad influences of the secondary users with low signal to noise ratio or poor performance on the whole detection performance are avoided.
Owner:北京宜尔贝健康科技有限公司

Irrigating device used for garden engineering

The invention discloses an irrigating device used for garden engineering, and relates to the technical field of garden irrigating. The irrigating device comprises a frame, a manual irrigating region is arranged at the left end of the upper surface of the frame, a protective door is arranged at the front end of the manual irrigating region, a water tank is arranged on the right side of the outer wall of the manual irrigating region, the upper end of the water tank is communicated with a first spraying cavity through a first water pumping pipe, a water spraying hose is hung on the lower end of the left side of the front side face of the outer wall of the water tank, the water spraying hose is communicated with the water tank, a chemical liquid mixing box is arranged on the right side of theouter wall of the water tank, the right side of the outer wall of the chemical liquid mixing box is connected with a second spraying cavity through a third water pumping pipe, a drag rod is rotatablyconnected to the lower end of the left side of the frame, and wheels are symmetrically arranged on the left side and the right side of the lower end of the frame. The irrigating device used for gardenengineering realizes the aims of convenient movement, safety, multiple irrigating modes, and a water irrigating effect, and improves the efficiency of garden irrigating.
Owner:WENZHOU HUAHONG MUNICIPAL GARDEN ENG CONSTR CO LTD

Heater for generating hot air and its electric wire insulator

The invention relates to a heater being connected with a blower, or the like, to deliver high-temperature hot air, and an insulator being provided in the heater. A planar insulator segment is provided with a large number of gas conduction holes (10, 10, ) and provided, at the circumferential edge part thereof, with inserting parts (12a, 12b) for securing the insulator segment and wiring an electrode. The insulator is formed by laying a plurality of sheets of the insulator segment in the air supply direction. Positions of the gas conduction holes (10, 10, ) of adjacent segments are shifted slightly while the sheets are laid in layers and the inserting parts (12a, 12b) for securing and wiring the electrode are arranged at an identical position. Between adjacent insulator segments where the positions of the gas conduction holes are shifted, a frame-like spacer insulator consisting only of a circumferential part where the inserting part (12c) for securing and wiring the electrode is provided at the same position as these insulator segments is arranged thus constituting a set of insulators for electric heating wire. When a nichrome wire is wired in the gas conduction hole of the set of insulators for electric heating wire, the nichrome wire is twisted by each insulator segment and held and secured surely.
Owner:TAKETSUNA SEISAKUSHO

Data leakage early-warning method and system based on document circulation

InactiveCN108011721ATimely and effective analysis of resultsTimely and effective statistical resultsUser identity/authority verificationDigital data protectionTimestampDigital signature
The invention discloses a data leakage early-warning method and system based on document circulation. The method comprises the steps of: binding terminal feature information, user information and timestamp information to a document, so that document version information is formed, and recording the document version information in a document digital signature; after the document is operated, recording updated document version information, and furthermore, updating the document digital signature by utilizing the updated document version information; taking the document version information beforeoperation and the updated document version information together as a piece of document version change record information, and uploading the document version change record information to a server; obtaining an document circulation abnormity index of the document by calculation by the server according to the document version change record information; and, according to the document circulation abnormity index, in combination with an early-warning strategy, determining whether data leakage early-warning on the document is carried out or not. By means of the technical scheme in the invention, a circulation chain can be constructed for a circulation document; a circulation analysis and statistical result of the document can be effectively generated in time; and the circulation efficiency and security are improved.
Owner:北京明朝万达科技股份有限公司

Wind speed self-adaptive closing window

The invention discloses a wind speed self-adaptive closing window, and relates to the technical field of energy-saving buildings. The wind speed self-adaptive closing window comprises a main body frame, wherein a mounting frame matched with the main body frame is arranged on the inner side of the main body frame, and glass matched with the mounting frame is arranged on the inner side of the mounting frame. According to the wind speed self-adaptive closing window, in the weather of strong wind and sand suddenly, airflow of the strong wind and sand acts on the outer surface of an overturning plate, so that the overturning plate is overturned and opened along a rotating column, the airflow of the strong wind and sand acts on an impeller through an air inlet pipe and two groups of air inducing pipes, and a first rotating shaft drives a first bevel gear fixedly connected with the bottom of the first rotating shaft to rotate; two groups of second bevel gears drive second rotating shafts to rotate towards the inner side, so that the mounting frame and the glass are reset and closed, the mounting frame and the grass cling to the inner side of the main body frame, torsional springs are fixedly arranged between the two groups of rotating columns and the air inlet pipe, the elastic coefficient of the torsional springs determines the magnitude of the airflow of the strong wind, the glass can be automatically closed, the bad influence caused when people close the window in windy and sandy weather or forget to close the window is effectively avoided.
Owner:马鞍山威莎自动化设备科技有限公司

Shield tunneling construction method for water-containing sandy gravel layer to penetrate through a cultural relic protection area underneath

The invention relates to the technical field of shield construction, in particular to a shield tunneling construction method for a water-containing sandy gravel layer to penetrate through a cultural relic protection area underneath, which comprises the following steps: S1, firstly, carrying out field investigation; S2, deeply researching the engineering geological characteristics of the rock-soil body of the sand-gravel layer; S3, carrying out shield tunneling machine model selection, tunneling adaptability analysis and key part design; S4, calculating the duration distribution characteristics and incidence relation of the shield tunneling key parameters; S5, carrying out research on the muck improvement technology; S6, carrying out analysis and research of undercrossing the earth surface of the cultural relic site and layered settlement; and S7, carrying out shield tunneling construction by the combination of various data. By means of the construction method, the shield cutter head design, the cutter type selection and the cutter arrangement scheme can be determined based on the shield interval geological characteristics and the stratum lithology, the adaptive design of other key parts is further researched and determined, and the safety of shield construction on the water-containing sandy gravel layer is guaranteed.
Owner:CHINA RAILWAY SEVENTH GRP CO LTD +1
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