Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 14. Отображено 14.
07-04-2023 дата публикации

Pressing mode recognition safety elevator based on decision tree algorithm

Номер: CN115924661A
Автор: LIAN YI, SUN MEIYAN, FU HEPENG, LIU ZIHANG, GENG SHUO
Принадлежит:

The invention relates to a pressing mode recognition safety elevator based on a decision tree algorithm. The pressing mode recognition safety elevator comprises a monitoring module, a control module and a man-machine interaction module. The real-time pressing force and time borne by the keys are collected by touching the pressure keys and converted into analog voltage, the face image features of elevator passengers are collected through an industrial camera at the top of an elevator, and the feature values are transmitted to the control module; the characteristic data transmitted by the monitoring module is received and analyzed through the industrial control host, key instructions of elevator taking personnel are automatically recognized according to a tree-shaped pressing instruction recognition model, and the man-machine interaction module comprises a display screen and a loudspeaker, displays internal information and safety prompts of an elevator in real time and asks for help from ...

Подробнее
Номер записи: 1
30-05-2023 дата публикации

Oblique cutting type tunnel portal supporting device

Номер: CN116181356A
Автор: LI PENG, KONG FUYONG, LIU ZHONGGANG, LUO XIAOBIN, LIU ZIHANG, DONG BIN, WANG YANG, XIANG BANGZHENG
Принадлежит:

The invention provides a beveling type tunnel portal supporting device which comprises a supporting device body, the supporting device body comprises a main beam assembly, a connecting assembly, an auxiliary beam and an anchoring mechanism, the main beam assembly is integrally of an arc-shaped structure, each main beam assembly is installed on the inner side of a tunnel body, a tunnel portal is arranged at the front end of the tunnel body, and the main beam assembly is connected with the main beam assembly. The beveling type tunnel portal supporting device comprises a base, a plurality of main beam assemblies are arranged at the bottom end of the base, a beveling face is arranged at the front end of the tunnel portal, the side edges of the main beam assemblies are in butt joint and fixed through connecting assemblies, and an auxiliary beam is built at the front ends of the connecting assemblies, and according to the beveling type tunnel portal supporting device, anchoring mechanisms are ...

Подробнее
Номер записи: 2
09-05-2023 дата публикации

Excavation protection structure for foundation pit above tunnel

Номер: CN116084425A
Автор: LU MENGWEI, PAN LIANGCAI, LIU ZIHANG, LI PENG, ZHOU YU, LI XIAOYI, LI ZE, LIU ZHENGWU
Принадлежит:

The invention provides a tunnel upper foundation pit excavation protection structure which comprises a foundation pit road, a foundation pit slope and a protection structure body, the protection structure body comprises a protection assembly, a shielding structure and an anti-falling structure, the protection assembly covers the surface of the foundation pit slope, a frame is arranged on the edge of the protection assembly, and the shielding structure covers the surface of the foundation pit slope. The side edges of the frame of each protection assembly are attached and aligned to each other, fixing parts are inserted into the corners of the frame, the protection assemblies are connected with the buffer structure through the fixing parts, and the protection assemblies and the buffer structure are fixed to the foundation pit slope through the fixing parts at the same time, so that the installation and construction steps are simplified, and the construction efficiency is improved. And the ...

Подробнее
Номер записи: 3
26-05-2023 дата публикации

Waterproof and drainage structure for open cut tunnel

Номер: CN116163803A
Автор: LIU ZIHANG, PAN LIANGCAI, LI PENG, DONG BIN, LI ZE, LU MENGWEI, LUO XIAOBIN
Принадлежит:

The invention provides a tunnel open cut tunnel waterproof and drainage structure which comprises a ground line, a clay waterproof layer is arranged at the bottom of the ground line, a backfill layer is arranged at the bottom of the clay waterproof layer, a tunnel wall is fixedly arranged at the corresponding position in the backfill layer, and an inverted arch is fixedly arranged at the bottom of the tunnel wall. A waterproof plate is fixedly installed on the outer side of the tunnel wall, a drainage mechanism is fixedly arranged on the outer side of the waterproof plate and comprises an arc-shaped plate, supporting of the arc-shaped drainage pipe can be increased through the drainage mechanism, deformation and even damage of the arc-shaped drainage pipe are avoided, meanwhile, larger water pressure can be borne, water is separated and drained, and the drainage effect is good. The drainage efficiency of the waterproof drainage structure can be improved, and the waterproof drainage structure ...

Подробнее
Номер записи: 4
06-06-2023 дата публикации

Triangular truss mounting and lifting device

Номер: CN116216504A
Автор: LIU ZHONGGANG, LUO HUASONG, CHENG RUI, ZHU ZHIQUAN, SUN FENGYANG, LIU ZIHANG, JIN ZHUANG, DONG BIN
Принадлежит:

The invention provides a triangular truss installing and lifting device which comprises a lifting machine, a supporting column and a triangular truss, a lifting box is arranged at one end of the lifting machine, a rotating shaft is arranged in the lifting box in a running fit mode, a pull rope is wound on the peripheral side of the rotating shaft, a telescopic rod is arranged on the lower side of the lifting box, a lifting rod is arranged at the bottom of the telescopic rod, and one end of the lifting rod is fixed to the pull rope; the other end of the lifting rod is rotationally matched with a rotating block corresponding to the triangular truss, and a limiting plate corresponding to the telescopic rod is arranged in the lifting box. According to the lifting device, the telescopic rod is installed on the lower side of the lifting box, the pull rope is placed in the telescopic rod, and compared with the pull rope, the telescopic rod is not prone to shaking or the shaking amplitude is small ...

Подробнее
Номер записи: 5
05-05-2023 дата публикации

Tunnel vault backfill grouting device and construction method thereof

Номер: CN116066144A
Автор: LUO XIAOBIN, JIANG LIQING, LIU ZIHANG, LI PENG, LI ZE, LIU ZHENGWU, WEI WEI, WANG YANG
Принадлежит:

The invention provides a tunnel vault backfill grouting device and a construction method thereof.The tunnel vault backfill grouting device comprises a grouting device body, the grouting device body comprises a fixing assembly, a grouting assembly, an exhaust mechanism and an air leading-out mechanism, and a plugging ring is arranged at the front end of the fixing assembly; the plugging ring is fixed to the outer portion of a tunnel vault backfill area through bolts, the grouting assembly penetrates through the interior of the fixing assembly, and the surface of the grouting assembly makes contact with the inner side of the plugging ring. According to the tunnel vault backfill grouting device and the construction method thereof, grout is conveyed into the grouting pipeline with the longer grout outlets, the blocking probability is reduced, the grouting efficiency is improved, once part of the grout outlets are blocked by concrete, and even grout discharging cannot be achieved, the scraper ...

Подробнее
Номер записи: 6
21-07-2023 дата публикации

Anti-interference compound control strategy of galvanometer motor system

Номер: CN116470802A
Автор: JIANG TIANCHEN, LIU ZIHANG, CHEN JIAHUI, ZHANG YUJIE, GU YIJIE, XU HENGZHOU, YUAN JINKANG, ZHANG YUTING, ZHANG LIWEN, SUN ZHENXING
Принадлежит:

The invention discloses an anti-interference compound control strategy of a galvanometer motor system, which comprises the following steps: according to an error signal between an analog signal transmitted by a position angle controller in a current loop of the galvanometer motor system and an analog signal fed back by a galvanometer, carrying out current correction through a PID algorithm of the current loop controller; establishing a dynamic mathematical model of a galvanometer motor system, and determining disturbance terms caused by parameter uncertainty and the outside; a finite time state observer is designed in position loop control to estimate a disturbance term in a galvanometer motor system; a second-order super-spiral sliding mode controller is designed according to the position loop control of the galvanometer motor system; second-order superspiral sliding mode control is combined with a finite time state observer. According to the method, the controller is designed to be combined ...

Подробнее
Номер записи: 7
25-08-2023 дата публикации

Student spine health management system and method

Номер: CN116645391A
Автор: LIU ZIHANG, XI HUIMIN
Принадлежит:

The invention belongs to the technical field of spine health management, and discloses a student spine health management system and method. The system comprises a scoliosis judgment module used for judging whether a target student has suspected scoliosis or not by performing physical sign examination on the target student; the scoliosis fitting curve generation module is used for extracting spine type value points in the spine contour when the target student is judged to have the suspected scoliosis, and performing curve fitting on the spine type value points to obtain a spine fitting curve; the scoliosis angle determining module is used for determining a target angle according to the spine fitting curve, and the target angle is a Cobb angle of the target spine image; and the treatment scheme recommendation module is used for determining a treatment scheme of the target student according to the target angle and pushing the treatment scheme to the target student. The Cobb angle of the target ...

Подробнее
Номер записи: 8
07-04-2023 дата публикации

Small and medium-sized intelligent heading machine

Номер: CN115929298A
Автор: WANG JIANTAO, GAO XINGLIANG, LIU XINGHAI, FU LIN, LIU ZIHANG, LIU XIAOFEI
Принадлежит:

The invention discloses a small and medium-sized intelligent heading machine which comprises a guide rail type hydraulic rotary drilling machine, a cutting part, a machine-mounted anchor rod drilling machine, a shovel plate part, a body part, a walking part, a temporary support, an intelligent system, a rear support and a conveying mechanism. And the cutting part is fixedly mounted at the top of the left side of the body part. Through cooperation of the guide rail type hydraulic slewing drilling machine, the cutting part, the onboard anchor rod drilling machine, the shovel plate part, the body part, the walking part, the temporary support, the intelligent system, the rear support and the conveying mechanism, intelligent tunneling work under a mine is achieved, potential safety hazards caused by field worker operation are greatly reduced, few workers and unmanned operation are achieved in the tunneling work, and the working efficiency is improved. And the working continuity is improved, ...

Подробнее
Номер записи: 9
09-06-2023 дата публикации

Control system of bolter-miner pump station and bolter-miner

Номер: CN116241516A
Автор: WANG HONGMIN, LIU ZIHANG, LI YONGXING, WANG WENYU, HUO DONGDONG
Принадлежит:

The invention discloses a control system of a bolter-miner pump station and a bolter-miner, in the system, when the bolter-miner is switched to a walking mode, an oil pump control valve group is controlled by a controller to conduct an oil supply loop connected between a plunger pump group and a walking hydraulic system and disconnect the oil supply loop connected between the plunger pump group and a cutting/anchor protection hydraulic system; and when the miner-bolter is switched to the anchor protection mode, the controller controls the oil pump control valve group to conduct the oil supply loop connected between the plunger pump group and the cutting/anchor protection hydraulic system and disconnect the oil supply loop connected between the plunger pump group and the walking hydraulic system. By the adoption of the electro-hydraulic proportional control system, an operator can complete fast switching of the walking module and the anchor protection mode of the driving and anchoring machine ...

Подробнее
Номер записи: 10
04-07-2023 дата публикации

Advanced drilling machine linkage control system

Номер: CN116378627A
Автор: LIU WEI, ZHAO YANBIN, LIU CHENHUI, LI YONGXING, HUO DONGDONG, LIU ZIHANG, HU YEMING
Принадлежит:

The invention relates to an advanced drilling machine linkage control system which comprises a multi-way valve, a linkage control valve set, a floating oil supplementing valve set, a hydraulic motor, a hydraulic chuck, a thrust oil cylinder and a clamp oil cylinder. The multi-way valve comprises a first reversing valve, a second reversing valve and a third reversing valve, the hydraulic motor is connected with the first reversing valve, the second reversing valve and the third reversing valve are both connected with the linkage control valve set, and the hydraulic chuck, the hydraulic motor, the thrust oil cylinder and the clamp oil cylinder are all connected with the linkage control valve set. And the hydraulic chuck, the thrust oil cylinder, the holder oil cylinder and the hydraulic motor are in linkage control through a linkage control valve group. And a floating oil supplementing valve group is arranged on the pipeline between the thrust oil cylinder and the linkage control valve group ...

Подробнее
Номер записи: 11
25-04-2023 дата публикации

Method for evaluating power of small-caliber infantry grenade

Номер: CN116007452A
Автор: LIU ZIHANG, KANG BAO, YU LIYAO, LU PANPAN, LI YONGXI, DU CHUANTONG
Принадлежит:

The invention discloses a small-caliber infantry grenade power evaluation method, which comprises the following evaluation steps: S1, analyzing a grenade killing area and determining parameters required for evaluation, S2, carrying out killing criterion from two aspects of a specific kinetic energy criterion and a condition killing probability, S3, preparing data and determining a killing area calculation formula, S4, analyzing effective fragment density, and S5, calculating the effective fragment density. S5, the flight distance and the minimum storage speed of the fragments in the air are calculated, and according to test results of the fragmentation test, the fragment initial speed test and the fragment space distribution test, the appropriate killing criterion is selected from the specific kinetic energy criterion and the killing criterion with the conditional killing probability as the standard; the related effective fragment density, the flight distance of the fragments in the air ...

Подробнее
Номер записи: 12
18-08-2023 дата публикации

Pan-tilt motor control method

Номер: CN116610156A
Автор: ZHANG YUJIE, JIANG TIANCHEN, GU YIJIE, KAN SIYUAN, XU HENGZHOU, CHEN JIAHUI, LIU ZIHANG, LIU YING, ZHANG LIWEN, ZHANG YUTING, JIN JUNYANG, SUN ZHENXING
Принадлежит:

The invention relates to a pan-tilt motor control method. The specific control steps are as follows: step 1, a pan-tilt acquires pan-tilt control parameter information from a sensor and preceding-stage equipment; 2, performing compensation calculation according to the holder control parameter information to obtain a compensated holder azimuth angle; 3, acquiring a holder following parameter for controlling a holder motor; 4, a super-spiral control method is used for a pan-tilt motor speed ring, a PID control method is used for a position ring, and pan-tilt motor control signals are generated and output. A pan-tilt pose control system multi-source interference model is established, current pan-tilt system state parameters are obtained, an interference observer is designed for multi-source interference, and the pan-tilt pose control system is obtained. Carrying out compensation calculation on the control parameter information of the pan-tilt, obtaining the azimuth angle of the pan-tilt after ...

Подробнее
Номер записи: 13
21-07-2023 дата публикации

Pneumatic dynamic penetration test device and test method

Номер: CN116464017A
Автор: DONG YOUKOU, LIU ZIHANG
Принадлежит:

The invention discloses a pneumatic dynamic penetration test device and a test method. The device comprises a rack, a consolidation bin, a driving air cylinder and a dynamic sounding rod, the consolidation bin comprises a bin cover and a bin body, a guide pipe is inserted in the bin cover, the driving air cylinder is arranged on the rack in a vertically movable mode through a height adjusting mechanism, the consolidation bin is located below the driving air cylinder, and the dynamic sounding rod is installed at the driving end of the driving air cylinder. And the driving cylinder drives the dynamic sounding rod to extend into the bin body through the guide pipe. The height of the driving cylinder is adjusted according to requirements, the cylinder pressure and the cylinder stroke of the driving cylinder are adjusted according to the initial speed required by test simulation, a sample is placed in the consolidation bin and below the driving cylinder, the driving cylinder is started, and ...

Подробнее
Номер записи: 14