取样器

Target identification method and device based on double-flow symmetric feature fusion network model

The embodiment of the invention discloses a target identification method and device based on a double-flow symmetric feature fusion network model. The method comprises the following steps: inputting a visible light image and an infrared image into a double-flow symmetric feature fusion network in which an attention mechanism is introduced to extract features so as to obtain visible light image features and infrared image features; calling an identification model according to the visible light image features and the infrared image features to carry out feature testing, and outputting a prediction label; a multi-stage feature fusion module in the double-flow symmetric feature fusion network in which the attention mechanism is introduced is used for enhancing key information in visible light image features and infrared image features and performing multi-stage cascade average fusion on enhanced feature expressions to obtain a fusion result; and the identification module is used for identifying ...

Target grouping method and device based on confidence decision tree clustering

The invention provides a target grouping method and device based on a confidence decision tree. The method comprises the following steps: obtaining individual attributes, capability attributes and communication relationships of targets through detection; taking all targets as root nodes; performing node division from a root node; traversing all the nodes to be divided until all the nodes do not need to be divided, and finally forming a confidence decision tree; and determining the group of the target according to the confidence of the target belonging to a certain sub-node in the confidence decision tree. According to the method, the cutting points during node division of the confidence decision tree are determined in the division process, and the confidence division method based on the cutting points is provided, so that child nodes are generated, and finally the confidence decision tree is formed. And finally, an adversarial group obtained by the confidence decision tree can be adjusted ...

Novel telescopic cylinder arm pin control system and crane

The invention discloses a novel telescopic cylinder arm pin control system which comprises a cylinder arm pin control valve, a cylinder arm pin control pump, a telescopic oil cylinder, a cylinder arm pin switching valve, a cylinder head body and an emergency ball valve, a P opening in a cylinder arm pin control valve body is connected with an oil outlet of the cylinder arm pin control pump, a T opening in the cylinder arm pin control valve body is connected with an oil tank, and a B opening in the cylinder arm pin control valve body is connected with the emergency ball valve. The other end of the emergency ball valve is respectively connected with an arm pin control oil cylinder and a cylinder pin control oil cylinder in the cylinder head body, a P'port is connected with a core tube on the telescopic oil cylinder, and the other end of the core tube is connected with a P port of an arm pin switching valve; a port A on the valve body of the cylinder arm pin switching valve is connected with ...

Rod principle based on activities of the high-voltage equipment position detecting device

... 本实用新型涉及一种基于活动杆原理的高压设备位置探测装置，所述探测装置包括活动杆及置于活动杆外围的使活动杆正常有效工作的支撑部件；所述的支撑部件包括铜环固定部分，穿过活动杆中部，用以固定活动杆以及密封；探测装置支撑架，与铜环固定部分连接，用以固定和支撑整个探测装置；弹簧和弹簧活动腔，弹簧活动腔连接并固定在探测装置支撑架上，弹簧置于弹簧活动腔内，活动杆穿过弹簧；传感器支撑架与传感器，传感器支撑架固定在弹簧活动腔上，传感器固定在传感器支撑架上。本实用新型以活动杆原理为基础，采用分段支撑结构，透过狭长的孔洞探测高液压的活动设备球阀下游密封，即提高了设备稳定性，又简化了拆装流程、提高了工作效率。 ...

Rapid positioning pest killing device for orange plantation

The utility model discloses a rapid positioning pest killing device for an orange plantation, and belongs to the technical field of pest killing. A rapid positioning pest killing device for an orange plantation comprises a baffle, a hook is fixedly arranged in the middle of the top face of the baffle, a mounting plate is fixedly arranged in the middle of the lower wall of the baffle, a plurality of trap lamp tubes are mounted on the lower wall of the mounting plate in a linear equal-interval structure, a C-shaped high-voltage net is fixedly arranged on the lower surface of the baffle, and a movable plate is arranged at the front end of the C-shaped high-voltage net. A handle is fixedly arranged in the middle of the front surface of the movable plate, and two connecting blocks are fixedly arranged on the right wall of the movable plate in a vertically symmetrical structure. The connecting block and the cylinder are made to rotate along the fixed block through the movable plate, the ball ...

Parameter compensation method for IPT system under variable coupling working condition

The invention relates to the technical field of wireless charging, in particular to a parameter compensation method for an IPT system under a variable coupling working condition, and the method comprises the steps: obtaining a primary side resonance compensation capacitor based on the working frequency of an S-S type wireless power supply system and the self-inductance calculation of a primary side coil; obtaining secondary side resonance compensation capacitance based on the working frequency of the S-S type wireless power supply system and secondary side coil self-inductance; calculating primary side and secondary side equivalent compensation capacitance based on the Kirchhoff circuit law and equivalent impedance angle conversion; and carrying out series equivalence on the equivalent compensation capacitor and the resonance compensation capacitor to respectively obtain the primary side compensation capacitor and the secondary side compensation capacitor of the system. According to the ...

Emergency control method for minimum system of pumped storage power station

The invention provides a pumping and storage power station minimum system emergency control method which is applied to a pumping and storage power station minimum system emergency control system which comprises a power station control minimum emergency service device, a communication module and a minimum system. The power station control minimum emergency service device is provided with an emergency judgment mechanism, an emergency takeover mechanism, an emergency disposal mechanism and an emergency automatic exit mechanism, and the emergency service device is started through cooperation of the emergency judgment mechanism, the emergency takeover mechanism, the emergency disposal mechanism and the emergency automatic exit mechanism. The system receives and controls the whole control system or a single function device of the pumped storage power station, collects device information, displays the information, provides information query, receives a control instruction of an operator, and operates ...

Wing truss structure imitating willow leaves

According to the wing truss structure imitating the willow leaves, the main leaf vein trusses and the branch leaf vein trusses are adopted to replace main leaf veins and branch leaf veins of the plant willow leaves, so that the bending resistance of the structure is improved, and the structure is not prone to being damaged when large bending deformation occurs; mesophyll of the plant salix leaves is replaced by the mesophyll skin, so that the mesophyll skin and the side plates form a box type structure, and the torsion resistance of the structure is improved; the adjacent main vein trusses are connected through the branch vein trusses, so that the torsion resistance of the structure is further improved under the condition that the weight of the structure is reduced.

Vegetable cleaning machine for ecological organic vegetable supply chain system and use method of vegetable cleaning machine

The invention discloses a vegetable cleaning machine for an ecological organic vegetable supply chain system and a using method thereof.The vegetable cleaning machine comprises a cleaning box and a driving mechanism, a plurality of partition plates are arranged in the cleaning box, and the partition plates divide an inner cavity of the cleaning box into a plurality of vegetable washing pools arranged side by side; vegetable salvaging devices are arranged on the upper portion of the interior of the vegetable washing sink, the vegetable salvaging devices conduct rotary salvaging and rotate synchronously, conveying mechanisms are arranged in the centers of the vegetable salvaging devices, the conveying mechanisms are in transmission connection, and the driving mechanism is in transmission connection with the vegetable salvaging devices. In the process that the vegetable fishing device rotates around the conveying mechanism, the conveying mechanism is used for achieving step-by-step conveying ...

Double-shaft quality guaranteeing device

The utility model discloses a double-shaft quality guaranteeing device. The double-shaft quality guaranteeing device comprises a horizontal shell used for storing materials. The two stirring and conveying mechanisms are horizontally arranged in the horizontal shell in parallel, any stirring and conveying mechanism is provided with a stirring part used for making contact with materials, and the two stirring parts are distributed in a crossed mode in the axial direction at intervals; and the power mechanism is connected with the two stirring and conveying mechanisms. The double-shaft quality guaranteeing device is large in stirring space and low in height, more materials can be fully stirred, absorption of steam by the materials is facilitated, the problems of low feed productivity and short quality guaranteeing time are solved, and meanwhile the quality guaranteeing curing effect is improved.

Method and device for obtaining equivalent load of rectifier of LCC-S type IPT system, and medium

The invention discloses a method for obtaining an equivalent load of an LCC-S type IPT system rectifier. The method comprises the following steps: constructing an LCC-S type IPT system circuit model comprising a rectifier equivalent input resistor and an equivalent input inductor which are connected in series; on the basis of the obtained input voltage oscillogram of the rectifier, listing a loop voltage equation through a Kirchhoff voltage law, and obtaining time domain expressions of input voltage and input current of the rectifier; fourier transform is carried out on the time domain expression, and fundamental wave Fourier coefficients of the input voltage and the input current of the rectifier are obtained respectively; acquiring fundamental wave amplitudes and phases of the input voltage and the input current of the rectifier through the fundamental wave Fourier coefficients of the input voltage and the input current of the rectifier; and obtaining the equivalent input resistance and ...

Pumped storage power station prison information display method

The invention provides a pumped storage power station monitoring information display method which is applied to a power station monitoring system. The power station monitoring system comprises a signal display module, a flow fault judgment module, a flow step establishment module, a flow fault moment feedback signal state judgment module, a color discrimination conversion module and a flow state and fault identification display module, and the method comprises the following steps: the signal display module establishes a power station monitoring picture; the flow step establishing module establishes a plurality of flow steps related to the flow of the power station unit in the power station monitoring picture, wherein the flow steps comprise a plurality of state signals; the flow fault judgment module identifies and sends out a flow step fault signal, and the flow fault moment feedback signal state judgment module outputs different state variables based on the flow step fault signal, a feedback ...

Spinal nerve teaching aid with sensing function

The invention belongs to the technical field of medical teaching, and particularly relates to a spinal nerve teaching aid with a sensing function, which comprises an adjusting box, a base is fixedly connected to the lower end of the adjusting box, a movable groove is formed in the adjusting box, a cushion block is fixedly connected to the right part of the lower groove wall of the movable groove, and a motor is fixedly connected to the upper end of the cushion block. The output end of the motor is fixedly connected with a first rotating rod, and the end, away from the motor, of the first rotating rod is fixedly connected with a first bevel gear. According to the spinal nerve teaching aid with the induction function, nerve branch information corresponding to the part is explained through the voice broadcast module, symptoms after nerve injury, nursing key points and other content needing to be expressed are explained, a nurse can easily obtain more information through comparison when evaluating ...

Channel estimation method and system for double-IRS auxiliary communication system

The invention discloses a channel estimation method and system for a double-IRS auxiliary communication system. The specific steps can be divided into a single-IRS auxiliary channel estimation step and a double-IRS auxiliary channel estimation step. In the single IRS auxiliary channel estimation step, an adaptive iteration termination threshold selection algorithm based on a k-means clustering algorithm is provided, and an adaptive double-structure orthogonal matching pursuit (KADS-OMP) algorithm based on k-means is further provided and used for estimating h1-G1 and h2-G2 channels. In the step of double-IRS auxiliary channel estimation, a triple compression channel estimation (TC-CE) algorithm based on compressed sensing is provided and is used for estimating an h1-D-G2 channel. Compared with the traditional scheme, the KADS-OMP and TC-CE algorithms provided by the scheme utilize the sparsity and structural characteristics of the millimeter wave channel, and the pilot frequency overhead ...

Rotary buffer system

The invention discloses a rotary buffering system which comprises a rotary buffering valve, a pilot pressure detection device and a rotary motor, and the rotary buffering valve controls the rotary motor to reverse and rotate. A main reversing valve core, a first main overflow valve and a second main overflow valve are arranged in a valve body of the rotary cushion valve, a pressure oil port of the first main overflow valve is communicated with a port A of the valve body, and a pressure oil port of the second main overflow valve is communicated with a port B of the valve body; a first oil recharging one-way valve and a second oil recharging one-way valve are further arranged in the rotary cushion valve, and oil inlets of the first oil recharging one-way valve and the second oil recharging one-way valve are communicated with the T port of the valve body; a shuttle valve and a rotary buffer oil duct are further arranged in the valve body of the rotary buffer valve; the rotary buffer oil duct ...

Data and knowledge fused target identification method and device

The invention provides a data and knowledge fusion target identification method, which comprehensively considers complementarity of data and knowledge, and comprises the following steps: acquiring to-be-identified data, and acquiring a first sample composed of labeled data and a second sample composed of unlabeled data from an existing database; sequentially constructing a first rule premise for the first sample and constructing a data-driven confidence rule base in a mode of fusing the first rule premise through a label; constructing a knowledge-driven belief rule base by repeatedly constructing candidate rule prerequisites for a second sample, selecting a second rule prerequisite from the candidate rule prerequisites by using a mutual information criterion, and providing the second rule prerequisite to an expert; finally, the belief rule base is fused by using a genetic algorithm, so that rule redundancy and conflicts can be effectively reduced. According to the method, the features of ...

Laminated capacitance transmission coupler

The invention discloses a laminated capacitor transmission coupler, and the coupler comprises a coupler transmitting end which comprises a first polar plate and a second polar plate which are laminated with each other and are arranged at an interval; the coupler receiving end comprises a fourth polar plate and a third polar plate which are mutually laminated and arranged at an interval; filling dielectric media are arranged between the first polar plate and the second polar plate and between the fourth polar plate and the third polar plate; electric energy transmission between the coupler transmitting end and the coupler receiving end is achieved through a transmission medium, and the relative dielectric constant of the filling dielectric is smaller than that of the transmission medium. The stacked capacitive coupler can solve the problem that an existing stacked capacitive coupler is low in transmission efficiency due to the fact that polar plates on the same side are close to each other ...