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29results about How to "Ensure stability and security" patented technology

Battery

The utility model relates to the technical field of batteries, and provides a battery, which comprises a pole structure, the battery shell comprises a cover plate, the cover plate comprises a main body and an extension section, the main body is arranged around the extension section, the wall thickness of the main body is greater than that of the extension section, and the pole structure is arranged in the pole through hole in a penetrating manner; the fixing part is arranged on the main body, the fixing part is arranged around the extension section, the fixing part is bent into a connecting section and a pressing section, the connecting section is arranged on the main body, and the pressing section is pressed on the pole structure, so that the pole structure is clamped between the pressing section and the extension section; wherein the cover plate and the fixing part are of an integrally-formed structure, the distance between one side, facing the pole structure, of the extending section and the outer surface of the main body in the direction perpendicular to the cover plate is H, and H is larger than or equal to 0.2 mm and smaller than or equal to 1 mm, so that when the cover plate and the fixing part are integrally formed, the structural strength of the fixing part and the extending section can be guaranteed, and reliable fixing of the pole structure is guaranteed; therefore, the safe use performance of the battery is improved.
Owner:CALB GROUP CO LTD

Calibration standard device for curtain wall installation

InactiveCN119466348AEnsure stability and securityMeasurement devicesWallsGear wheelCurtain wall
The invention relates to the technical field of curtain wall installation, and discloses a calibration standard device for curtain wall installation, which comprises a main driving mechanism, an auxiliary driving mechanism is arranged on the side surface of the main driving mechanism, detection locking mechanisms are respectively arranged on two sides of the auxiliary driving mechanism, and the two groups of detection locking mechanisms are installed in opposite directions. A suction cup mechanism is arranged on the other side of the auxiliary driving mechanism, and auxiliary mechanisms are arranged on the two sides of the suction cup mechanism in a mirroring mode; the detection locking mechanism comprises a detection gear, a movable detection block is arranged on the side face of the detection gear, and a movable rod is arranged on the side face of the detection block. In the invention, the arranged detection locking mechanism performs real-time angle change detection when the auxiliary driving mechanism swings, and can detect and calibrate the swing angle of the movable frame and the angle of the first electric push rod for compensation at the final installation position, so that the curtain wall is finally kept in a vertical state for installation; therefore, the curtain wall does not need to be locked after manual horizontal calibration after manual installation.
Owner:SHANGHAI ZHUSHENG CURTAIN WALL TECH CO LTD

Data verification protection method and terminal

The invention discloses a data verification protection method and a terminal, and the method comprises the steps: reading pre-stored data information, continuing the subsequent operation according to the data corresponding to a target verification code when the verification code in the data information is the same as the target verification code in a memory, and reading the data verification code in the memory when the verification code in the data information is not the same as the target verification code in the memory; and judging whether the target check code is the same as the data check code or not, if not, further reading the data fault-tolerant check code in the memory, and when the target check code can be matched with the data fault-tolerant check code, executing an operation corresponding to the data fault-tolerant check code. Therefore, in the process of checking the target check code, the data check code and the data fault-tolerant check code in the memory can be combined for checking, and the corresponding fault-tolerant operation can be executed according to the fault-tolerant check code, so that different data check scenes can be flexibly coped with, and the stability and safety of the data are ensured.
Owner:FUJIAN TIANYI WEBSOFT TECH LTD

Buffering and vibration isolating device for beam-column connection of assembly type subway station

The invention relates to the field of assembly type subway station structure engineering. The buffering and vibration isolation device comprises two bottom plates and two frames, the number of the bottom plates is two, the number of the frames is two, and the frames are arranged at the top ends of the bottom plates; the transverse rods are installed at the top ends of the two bottom plates correspondingly and located on the inner sides of the two frames, and a plurality of rectangular through grooves are formed in the transverse rods; the plurality of longitudinal rods respectively penetrate through the plurality of rectangular through grooves; according to the transverse vibration isolation mechanism, when the cross beam is subjected to transverse force, a baffle moves in a shell, a fourth spring is attached to a cylinder to stabilize deformation buffering, a first elastic piece and a second elastic piece are matched through an inclined face or a protrusion, transmission force is evenly distributed, cooperative buffering is achieved, and impact vibration generated when the beam column connection is subjected to longitudinal and transverse force is effectively reduced; the service life of the device is prolonged; and the safe and stable operation of the structure is maintained.
Owner:EAST CHINA JIAOTONG UNIVERSITY +1

A hub motor electric vehicle coordinated control method based on AFS and DYC

The application discloses a kind of based on AFS and DYC's hub electric vehicle coordination control method, belong to electric vehicle control field, the device mainly contains centroid side slip angle observation module, lateral acceleration sensor, state identification module, AFS module, DYC module and coordination control module.Main steps:1, centroid side slip angle observation module and lateral acceleration sensor vehicle state information is passed to state identification module;2, state identification module according to the state information collected, divides vehicle driving area;3, coordination control module according to the determination result of state identification module, designs the weight distribution scheme of AFS controller and DYC controller.The main advantages of the application are: firstly, centroid side slip angle and lateral acceleration two variables are simultaneously included in vehicle driving state determination;Secondly, coordination control strategy not only guarantees vehicle safety stability, but also can improve ride comfort.
Owner:JIANGSU UNIV

Prediction method and device for maintenance of air inlet system, automobile and storage medium

PendingCN119129839AEnsure stability and securityImprove perception experienceForecastingAir cleaners for fuelPredictive methodsSystem maintenance
The embodiment of the invention provides an air inlet system maintenance prediction method and device, an automobile and a computer readable storage medium, and relates to the technical field of automobile engineering. The method comprises the steps that the current resistance of an air inlet system of the automobile and the average speed of the automobile are obtained; determining the current ash capacity of the air inlet system based on the current resistance; and according to the average vehicle speed and the current ash capacity, the mileage supported by the air inlet system before maintenance is predicted. According to the embodiment of the invention, the service life prediction of the automobile air inlet system is realized, a user can reasonably arrange the automobile maintenance time based on the predicted mileage supported by the air inlet system before maintenance, the perception experience of the user is improved, and the safety and stability of the air inlet system are further guaranteed.
Owner:DONGFENG MOTOR GRP

A pump body pipeline automatic leveling docking method and system

The present application discloses a method and system for automatic leveling and docking of a pump body and pipeline, comprising the following steps: adjusting the height of the lifting platform based on the installation height of the first pipeline so that the second pipeline is flush with the first pipeline; performing PID adjustment on the front and rear heights of the lifting platform based on the level detection so that the second pipeline is in a horizontal state; obtaining the first coordinate information of the first screw hole based on the image of the first screw hole and the CA‑YOLOv5s model; adjusting the position of the mounting platform based on the first coordinate information so that the screw hole of the second pipeline is aligned with the first screw hole. The method of the present application has an automatic leveling function and an automatic identification and alignment function, and can realize automatic leveling of the workbench at a slope within 45 degrees, so that the pump body and pipeline are always kept horizontal, ensuring the stability and safety of the pump body and pipeline during transportation; the structure of the present application can realize the automatic installation of the pump body and pipeline, avoiding the need to consume a lot of material and manpower during the installation process.
Owner:NANTONG UNIV

Regeneration roller accumulated material removing device

The utility model discloses a regeneration roller accumulated material removing device which comprises an operation machine frame, a roller fixing mechanism is fixedly welded to the surface of the front end of the operation machine frame, a locking screw is fixed to the roller fixing mechanism in a screwed connection mode through threads, and a clamping fixing plate is arranged at one end of the locking screw. The output end of the transmission machine box is connected with an electric push rod through a rotating shaft, the output end of the electric push rod is fixedly connected with a cleaning roller shaft through a stirring shaft, cleaning bristles are arranged on the outer surface of the cleaning roller shaft, and the cleaning roller shaft makes contact with the inner surface wall of the roller body through the cleaning bristles. By arranging the convenient roller limiting and fixing mechanism, the two sides of the roller can be conveniently locked, then the cleaning roller shaft device capable of being adjusted in a telescopic mode is arranged, cleaning agents are injected into the roller, viscous accumulated materials left on the inner surface wall of the roller can be rapidly cleaned under the action of the motor assembly, and the device has the advantages of being convenient to operate, high in practicability and the like. And the cleaning effect is good.
Owner:GANZHOU XINYUE ASPHALT ENG CO LTD

A support and fixing structure for a brushless motor adapter plate of an automobile

The utility model discloses a kind of automobile brushless motor adapter plate support fixed structure, it includes stator fusion welding assembly, busbar terminal board and adapter plate support piece;The stator fusion welding assembly has insulating framework on, the busbar terminal board is positioned and assembled in the inner ring of insulating framework, the adapter plate support piece is positioned and assembled in the outer ring of insulating framework;The busbar terminal board has multiple three-phase welding head, the adapter plate support piece top periphery is extended upwards and is shaped with multiple corresponding three-phase welding head adapter guide plate, each the adapter guide plate is provided with L-shaped adapter copper sheet, the L-shaped adapter copper sheet one end is welded with three-phase welding head and the other end extends upwards.
Owner:NIDEC KAIYU AUTO ELECTRIC JIANGSU

Novel self-service wine selling machine

The utility model discloses a novel self-service wine selling machine which comprises a machine body, an advertising board is arranged at the top of the machine body, a display screen is arranged at the top of the front end of the machine body, wine receiving grooves are formed in the two sides, close to the middle, of the front end in the machine body, and moving wheels are arranged at the four corners of the bottom end of the machine body. A transparent cover is arranged at the front end of the wine receiving groove, wine storage boxes are arranged on the two sides of the rear end in the machine body, a pump machine is arranged at the top end of each wine storage box, and a wine conveying pipe is arranged at the output end of each pump machine. By arranging the covering protection assembly at the bottom end of the wine receiving groove, during use, a lifting rod is driven by a lifting electric cylinder to push a protection cover to ascend to cover the outside of a wine outlet, so that the wine outlet is protected, the situation that the wine outlet is contaminated to affect wine when wine is not discharged is avoided, and during wine discharging, the lifting rod is driven by the lifting electric cylinder to lower the protection cover, so that the wine discharging efficiency is improved. Therefore, the wine selling machine is safer and more sanitary, and the drinking safety is further guaranteed.
Owner:YANTAI DAYU SUPPLY CHAIN MANAGEMENT CO LTD

Transformer with electric leakage alarm function

The utility model discloses a transformer with an electric leakage alarm function, and relates to the technical field of transformers. The device comprises a transformer and an output wire, a wire is fixedly installed on the side face of the transformer and electrically connected with the transformer, the other wire is fixedly connected to the end, close to the transformer, of the output wire, an electric leakage detector is fixedly installed on the side face of an installation shell, and a clamping connector is fixedly installed in the electric leakage detector. An electromagnet is fixedly mounted on the side face of the mounting shell and electrically connected with the electric leakage detector. Through cooperation of the clamp and the rotary knob, the clamp can move up and down in the supporting arm, so that electric wires of different specifications are clamped, the clamp and the electric wires are prevented from slipping off, when the electric leakage detector detects electric leakage of the electric wires, the indicator light is turned on, and meanwhile, the mounting seat slides towards the electromagnet along the sliding groove, so that the electric wires are separated from the clamping head; therefore, the safety and stability of the transformer are guaranteed.
Owner:NANPI RAILWAY SIGNAL EQUIP FACTORY

Automatic boxing jig for injection molding parts

The utility model provides an automatic injection molding part boxing jig which comprises a lifting platform arranged on a plane moving platform, four telescopic push rods are arranged on the lifting platform and located at the four corners of the lower portion of the lifting platform respectively, and clamping adsorption mechanisms are arranged on the lower portions of output rods of the telescopic push rods. The clamping and adsorbing mechanism is used for clamping, fixing and adsorbing objects to be boxed and comprises an adsorbing assembly and a clamping assembly, and the clamping assembly is located on the outer side of the adsorbing assembly. The clamping and adsorbing mechanism is arranged on the lower portion of the plane moving platform to be matched with the lifting platform and the telescopic push rod, products of various specifications can be adsorbed and clamped and fixed at the same time, the stability and safety performance of the products in the boxing process are guaranteed, operation is simpler and more convenient, applicability is higher, and practicability is higher. The safe and stable performance in the boxing process is greatly improved, and the boxing efficiency is improved.
Owner:WUHAN STANLEY ELECTRIC CO LTD

Film pasting and cutting device for original chip

ActiveCN119116398ALift from right to leftImprove the efficiency of moving from left to rightSemiconductor/solid-state device manufacturingCleaning using toolsMechanical engineeringElectrical and Electronics engineering
The invention discloses an original chip film pasting and cutting device, and relates to the technical field of chip film pasting. Two first electric sliding rails arranged side by side and two second electric sliding rails arranged side by side are arranged on the two sides of a replacement mechanism, and by means of rotation of a cross beam and grabbing of a grabbing hand assembly, film pasting and cutting are achieved; according to the X-shaped feeding and discharging device, 180-degree position replacement can be conducted on chips conveyed on the first electric sliding rails and the second electric sliding rails, finally, an X-shaped feeding and discharging track is formed, the two first electric sliding rails and the two second electric sliding rails on the left side and the right side are started at the same time, the chips can be conveyed at the same time in the same direction, and a chasing type feeding and discharging mode is formed; according to the film pasting device, the efficiency of moving the original chip from right to left and the efficiency of moving the film pasting chip from left to right can be greatly improved, feeding and discharging operations are synchronously carried out and do not interfere with each other, the film pasting processing of the original chip can be continuously carried out, and the film pasting processing efficiency of the original chip can be greatly improved.
Owner:SUZHOU JIJIAYI INTELLIGENT TECH CO LTD

A housing purge mechanism for an industrial internet of things

The application discloses a shell blowing mechanism for an industrial internet of things, and relates to the field of device shell preparation devices.The shell blowing mechanism comprises a case, a plurality of air knife assemblies are arranged in the case, the air knife assemblies are arranged in an array in the case, and a blowing space is formed between the air knife assemblies.The air knife assemblies are floatingly installed in the case, and the boundary of the blowing space can change with the floating of the air knife assemblies.The shell surface is blown by the air knife assemblies, and the floating installation of the air knife assemblies enables the blowing space to change with the floating of the air knife assemblies, so that dead corners can be blown, and the blowing space boundary can change to adapt to the blowing of the shells of products of various specifications.
Owner:CHENGDU QINCHUAN IOT TECH CO LTD

Method and device for prolonging service life of transformer in inland river harbor area

PendingCN119623385ACoordinate charging strategiesspeed up the aging processArtificial lifeCAD circuit designElectrical batteryState of charge
The invention discloses a method and device for prolonging the service life of a transformer in an inland river harbor district, and the method comprises the steps: collecting the real-time current and voltage data of a lithium ion battery of each electric heavy truck in a target harbor district, so as to construct a lithium ion battery dual-polarization equivalent circuit model of each electric heavy truck; discretizing the constructed dual-polarization equivalent circuit model of each lithium ion battery, and establishing a discrete state space model of each lithium ion battery, so as to obtain the real-time charge state of the battery of each electric heavy truck; based on a transformer winding hot-spot temperature calculation model, establishing an electric heavy truck charging scheduling model with minimum transformer life loss as an objective function; and solving the electric heavy truck charging scheduling model by combining the real-time state of charge of the battery of each electric heavy truck and each formulated constraint condition to obtain an optimal scheduling scheme of the charging access time and the charging duration of each electric heavy truck, so that the service life loss of the transformer is minimized, and the service life of the transformer is prolonged.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO LTD CHANGZHOU BRANCH +2

Spray needle head hoisting tool

The utility model discloses a spray needle head hoisting tool, and belongs to the field of hoisting tools. The device mainly comprises a bearing assembly, wherein the bearing assembly comprises a ball bearing for supporting the tip of a spray needle head; and the holding assembly is installed on the ball bearing, the holding assembly comprises a first steel ring and a second steel ring which are used for holding the spray needle head and hinged to each other, and lifting lugs connected with an external lifting tool are arranged on the first steel ring and the second steel ring. According to the spray needle head hoisting tool, the holding assembly is opened in a C shape through a hinge structure of the first steel ring and the second steel ring, the periphery of the spray needle head is directly sleeved with the steel rings from the side face under the condition that a rotating wheel is not dismantled, meanwhile, a ball bearing of the bearing assembly is connected to the tip end of the spray needle head in a sleeving mode, and a double-positioning structure of tip end supporting and periphery holding is formed; and therefore, the spray needle head can be stably hoisted.
Owner:HUADIAN YUNNAN POWER CO LTD

Vehicle-mounted flying stretcher

The invention discloses a vehicle-mounted flight stretcher which is composed of a rescue vehicle platform and a vehicle-mounted rescue aircraft, the vehicle-mounted rescue aircraft comprises a rescue aircraft body and a ground rescue vehicle platform, and a special lifting type take-off and landing cabin is arranged on the ground rescue vehicle platform; the vehicle-mounted rescue aircraft body adopts a double-row serial heterogeneous duct layout, a streamline battery cabin is fixedly connected right below a main body frame of the aircraft body through hanging points, and an energy module is packaged in the streamline battery cabin; a load management system is integrated on the abdomen of the vehicle body main body frame, namely between the energy module and the vehicle body main body frame, and a medical stretcher is arranged under the load management system. A specially-designed large-load, compact and disassembly-free ducted aircraft serves as a connection aircraft to achieve the function similar to a stretcher, and the problem that vehicles cannot pass through and cannot be driven in harsh rescue environments such as dense forest mountains, traffic jam highways and urban blocked streets is solved.
Owner:NANCHANG HANGKONG UNIVERSITY

Soup filling device for processing clean water day lily

The utility model discloses a soup filling device for processing clean water day lily, which comprises a transmission mechanism, a weighing mechanism and a filling mechanism, the weighing mechanism comprises a fixed frame, a weighing device is arranged at the top of the fixed frame, a weighing platform is arranged at the top of the weighing device, the filling mechanism comprises a motor, and the motor is connected with the weighing device. The top end of an output shaft of the motor is fixedly connected with a rotating shaft. The filling barrel is driven to move to the weighing platform through the structures such as the guide block, the moving groove, the motor, the moving disc and the rotating disc, net weight weighing of day lily is preliminarily conducted through the weighing device, and then the liquid storage tank feeding and discharging mechanism is controlled to be started according to the weighed weight; and when the weighing device senses that the weight is increased to be equal to the net weight of the day lily, filling is stopped, a manual clear water day lily filling mode is replaced, the processing efficiency of the clear water day lily is effectively improved, meanwhile, the filling proportion of the day lily soup is more accurate, and an effective guarantee is provided for the subsequent sealing effect.
Owner:SHANXI AGRI UNIV

Auxiliary device for drop test of container quay crane sling

PendingCN119618534AAchieve overhaulEnsure stability and securityShock testingMarine engineeringDrop tests
A container quay crane sling drop test auxiliary device belongs to the quay crane sling technical field, and comprises a pedestal, the top side of the pedestal is provided with a support housing, the support housing is internally provided with a lifting arm capable of rising or falling, the lifting arm is used for lifting a sling, the top side of the support housing is provided with a lock catch hole, the lifting arm is an internal hollow structure, and the lock catch hole is provided with a lock catch. A lifting arm is arranged in the supporting shell, a lifting plate capable of being flatly attached to the top side of the supporting shell is arranged at the top end of the lifting arm, the bottom end of the lifting arm is of an opening structure, a lifting cylinder located in the lifting arm is arranged in the supporting shell, and a locking device matched with the lifting arm is arranged on the supporting shell. The container quay crane sling drop test auxiliary device is reasonable in design, ingenious in structure, convenient to operate, capable of simulating the working condition of a sling site, good in overhaul effect, capable of effectively improving the working efficiency and suitable for popularization.
Owner:QINGDAO PORT INT CO LTD +1

Three-section type bumper of automobile

The utility model discloses an automobile three-section type bumper which comprises a middle section bumper body, a sliding groove is formed in the front surface of the middle section bumper body, a sliding strip is connected to the inner surface of the sliding groove in a sliding mode, a side section bumper body is fixedly connected to the front surface of the sliding strip, and a fixing device is arranged on the front surface of the middle section bumper body. The fixing device comprises an L-shaped buckle, a fixing box, a slope block, a connecting block, a limiting ring, a pressing block, a first spring, a partition plate and a buffering device. The buffering device comprises a connecting base, a second spring, a sliding column and a connecting sleeve. The bumper is connected in a three-section mode through the fixing devices, the sliding grooves and the sliding strips, meanwhile, the side section bumper can be replaced easily and conveniently, the risk that bolts are rusted and loosened due to long-term bolt connection is avoided, and therefore the stability and safety of the bumper are guaranteed, meanwhile, the impact force generated when an automobile is impacted can be buffered through the buffering devices, and the service life of the bumper is prolonged. Therefore, the safety of people during automobile collision is improved.
Owner:QINGDAO DESHUNXIN IND & TRADING CO LTD

Non-visual automatic protection frame device

The utility model discloses a non-visual automatic protection frame device, and belongs to the technical field of protection technologies in the debugging and running process of a robot. The robot comprises a frame, the frame comprises an upper layer and a lower layer, the upper layer is provided with a driver, a controller and a power source, the lower layer is used as a robot activity space, and a movement mechanism is arranged at the bottom of the frame; the top of the protection mechanism is connected with the top of the frame, and the bottom of the protection mechanism penetrates through the upper layer of the frame to be connected with a robot; the controller, the driver, the protection mechanism and the movement mechanism are in communication connection; according to the utility model, the tension sensor and the horizontal sensor are ingeniously combined, so that the spatial position of the robot relative to the protective frame can be accurately sensed. By means of the innovative design, the position of the protection frame can be automatically adjusted, it is guaranteed that the robot is located in a safety protection center area all the time, and the protection effect is greatly improved.
Owner:CHANGZHOU BORI ELECTRIC POWER AUTOMATION EQUIP +2

Battery

The utility model relates to the technical field of batteries, and provides a battery, which comprises a battery shell, a battery cover and a battery cover, the battery cell is arranged in the battery shell; the battery core is electrically connected with the pole assembly, the pole assembly comprises a first fixing part, a middle part and a second fixing part, the first fixing part is arranged on the outer side of the battery shell, the second fixing part is arranged on the inner side of the battery shell, at least part of the middle part is arranged in the pole through hole in a penetrating manner, and a recess is formed in one side, deviating from the battery core, of the pole assembly; the recess comprises a side wall and a bottom wall, the side wall is connected with the bottom wall, the middle part forms the side wall, the second fixing part forms the bottom wall, the area defined by the circumferential outer edge of the bottom wall is a, and a is larger than or equal to 10 mm < 2 > and smaller than or equal to 200 mm < 2 >, so that the overall structural strength of the pole assembly can be guaranteed, and the pole assembly can have enough overflowing size; therefore, the safe use performance of the battery is effectively improved.
Owner:CALB GROUP CO LTD

Falling protector for steel strand type falling prevention device

ActiveCN222324153Uimprove gripEnsure stability and securitySafety beltsMechanical engineeringBall diameter
The utility model discloses an anti-falling device for a steel strand type anti-falling device, and relates to the field of anti-falling devices, the anti-falling device comprises an anti-falling shell and a wire holding pipe fixedly arranged at one end of the anti-falling shell, a locking shell is rotatably arranged on the inner side of the anti-falling shell, an anti-falling clamping block is rotatably arranged on the inner side of the locking shell, the outer circle of the anti-falling clamping block is arranged in an involute mode, and the outer circle of the anti-falling clamping block is fixedly arranged on the wire holding pipe. A plurality of half clamping balls are fixedly arranged on the inner wall of the wire holding pipe, the half clamping balls are arranged in two rows, and the diameters of the half clamping balls in one row are gradually increased. According to the utility model, through the arrangement of the locking shell and the contact block, when an operator needs to stay for maintenance, the contact block can be utilized to be in contact with a steel strand; according to the climbing device, a safety belt is replaced, so that an operator does not need to carry an additional safety belt when climbing, and the steel strand is bent through the gradually-enlarged half clamping ball and the arrangement of the contact block and the half clamping ball, so that the grabbing force effect is improved.
Owner:JIANGXI TAIKAI ELECTRIC POWER CO LTD

A camera device for high-rise building detection unmanned aerial vehicle

PendingCN122852892AEnsure stability and securityprevent crash
The application provides a camera device for high-rise building detection unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicle image acquisition equipment. The camera device comprises a body, a plurality of wings arranged in a circumferential array on the upper side of the body, a camera installed at the lower end of the body, a camera driving mechanism connected to the camera, the camera driving mechanism being installed on the body, and a camera protection mechanism installed at the side end of the body. The camera protection mechanism comprises supporting legs installed on the left and right sides of the lower end of the body. The camera driving mechanism can drive the camera to extend out of the body and rotate 360 degrees on a horizontal plane to take pictures of the target position of the high-rise building. When the camera is not taking pictures, the camera can enter the body to be protected. The camera protection mechanism can protect the body and the connected camera during flight of the body, ensuring the stability and safety of the camera during flight of the body, avoiding scratching and collision between the body and building components during flight, and preventing flight out of control and crash.
Owner:德圣工程有限公司

Flexible direct output system multi-converter station reactive power control method based on power operation domain

The invention discloses a multi-converter-station reactive power control method for a flexible direct-current output system based on a power operation domain, and belongs to the technical field of offshore wind power flexible direct-current power transmission. The method comprises the following steps: calculating the reactive power demand of a receiving-end converter station according to grid-connected point voltage, a reactive power initial value before reactive power fluctuation of the converter station and other information; then stable operation constraint conditions of the receiving-end converter station are analyzed, the constraint conditions comprise converter station apparent power constraint, converter station alternating current limit constraint and converter station alternating current bus voltage constraint, and the steady-state power operation domain of the receiving-end converter station is determined by solving the boundary of the constraint conditions; and finally, based on a reactive power demand and the steady-state power operation domain, designing an active rapid transfer control method considering reactive fluctuation, and realizing power mutual aid and cooperative control among multiple converter stations. According to the method, the offshore wind power flexible direct output system can be always maintained in a steady-state power operation domain, and the reactive power supporting capacity and the operation stability of the system are improved.
Owner:STATE GRID JIANGSU ECONOMIC RES INST +2

Shielding plate installation combination

ActiveCN224259182Ureduce lossImprove linear aesthetics of appearanceNoise reduction constructionBridge structural detailsShutterBridge deck
The utility model relates to a curtain board installation combination which comprises a prefabricated F1 type curtain board, a prefabricated F2 type curtain board, a prefabricated F3 type curtain board, a prefabricated F4 type curtain board, a prefabricated F5 type curtain board and a prefabricated F6 type curtain board, the length of the prefabricated F1 type curtain board, the prefabricated F2 type curtain board and the prefabricated F3 type curtain board is 1000 mm, the length of the prefabricated F4 type curtain board is 400 mm, the length of the prefabricated F4 type curtain board is consistent with the length of an anchoring stay wire foundation, and the prefabricated F5 type curtain board and the prefabricated F6 type curtain board are zero setting sections. The length is calculated based on the bridge floor length and the number of the contact net stand column foundations and the number of the anchoring stay wire foundations, the F1 type shielding plate and the F5 type shielding plate are used for a common section, the F2 type shielding plate and the F6 type shielding plate are used for installing a railing stand column or a vertical sound barrier stand column, the F3 type shielding plate is used for the foundation with the contact net stand column, and the F4 type shielding plate is used for the foundation with the anchoring stay wire. And various types of shielding plates are configured in a combined manner according to the structural characteristics of mounting positions. Through the collaborative design of prefabricated parting and combined assembly, the problem of cutting or customizing special-shaped components on site is avoided, and the construction efficiency is improved.
Owner:CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP CO LTD

Modular quick-mount wash wall lamp

This utility model relates to the field of wall washer lights and discloses a modular quick-installation wall washer light, including a housing. Multiple light bodies are installed in the middle of the housing, and an installation assembly is installed in the lower part of the housing. The housing includes a shell, with mounting plates fixedly connected to the front and rear of the inner wall. Multiple positioning grooves are formed on the top of the mounting plates. A top frame is provided on the upper part of the shell, with limiting strips fixedly connected to the front and rear of the bottom of the top frame. An installation ring is fixedly connected to the outer wall of the light body, overlapping the upper part of two mounting plates. Limiting grooves are formed on the front and rear of the top of the installation ring, and the limiting strips are inserted into the limiting grooves. In this utility model, by setting up the cooperation between the housing, light bodies, installation assembly, contact base, contact head, and other components, when a single light body inside the wall washer light is damaged, it can be quickly disassembled, replaced, and installed, making it more practical.
Owner:GUANG DONG JIUFO LIGHTING CORP CO LTD

A distributed network security monitoring system

The invention discloses a distributed network security monitoring system, comprising: a central control module and a data storage module, wherein the output end of the central control module is connected to a main server, and the main server is connected to a block server via a data transmission module; the beneficial effects of the invention are: when the distributed network security monitoring system needs to perform real-time detection on the central control module, the information on the working status of the central control module can be detected through a temperature detection module, a humidity detection module, a network security detection module and a power system detection module, and various data are transmitted to the central control module; when the device status monitoring module detects that a certain data is abnormal, an alarm sound can be sounded, and the abnormal data can be fed back to the central control module so that the user can process it in time, thereby ensuring that the monitoring equipment can work normally, which is the characteristic of the distributed network security monitoring system.
Owner:MAANSHAN POWER SUPPLY COMPANY STATE GRID ANHUI ELECTRIC POWER