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644results about How to "Avoid safety hazards" patented technology

High voltage grounding tool for power maintenance

The invention discloses a high voltage grounding tool for power maintenance, which comprises a grounding wire chuck and an operating rod, wherein the wire chuck comprises a C-shaped hanging frame, a wire clamp moving plate and a lifting rod; a connector connected with the C-shaped hanging frame is arranged at the top of the operating rod; the upper end of the lifting rod is connected with the wire clamp moving plate; a driving mechanism connected with the lifting rod is arranged in the operating rod; the operating rod is arranged in a multi-section insertion manner; locking rings are arranged among sections of the operating rod; reducer pipes are arranged among sections of a movable casing pipe; elastic pins or key structures matched with the movable casing pipe are arranged on the reducer pipes. According to the invention, the high voltage grounding tool is hung on a wire by utilizing the C-shaped hanging frame; the wire is clamped by adopting the lifting rod; the wire-off accident is prevented; the low-position safe operation is realized; the potential safety hazard caused by the climbing operation is avoided; the working difficulty is reduced; the working efficiency is improved; the sectional design concept is adopted; the flexible variation of the length of the operating rod is ensured; in the transmission link, the interchangeable connection can be carried out; the effects are obvious.
Owner:STATE GRID CORP OF CHINA +1

Serum-free fibroblast cell culture medium and preparation method thereof

The invention relates to a serum-free fibroblast cell culture medium and a preparation method thereof, wherein the base culture medium is a DMEM culture medium or a mixture of the DMEM culture medium and a F12 culture medium, and the exogenous additives comprise hormones, a metal transporter, glutamine, a lipid concentration agent, an antioxidant, purine, saccharide and a cell growth factor. Compared with the culture medium in the prior art, the serum-free fibroblast cell culture medium of the present invention has the following advantages that: animal origin or recombinant albumin is not added so as to avoid the possibly-carried safe hidden danger and reduce the culture medium cost; the culture medium is suitable for primary culture and subculture of fibroblast cells, the good cell morphology is maintained, and the status and the function of the cultured cells are similar to the status and the function of the serum group cells; adherence factor coating is not required, the primary 24 h adherence rate is more than 60%, the passage 24 h adherence rate is more than 80%, no difference exists between the cells cultured with the culture medium of the present invention and the serum group cells; requirements of multiple passages can met, and the growth conditions of the cells after 15 passages are similar to the growth conditions of the serum group cells; and after the fibroblast cells are directly transferred into the culture of the present invention from the serum-containing culture, the cells can successfully adhere and extend without the gradual adaptation process.
Owner:西安博鸿生物技术有限公司

Safety authentication method and system for wireless network

The invention discloses a safety authentication method and a safety authentication system for a wireless network. The system comprises a signal fingerprint monitoring and processing module and a wireless network access authentication module at an access point. The method comprises the following steps that: at a network access point, the signal fingerprint monitoring and processing module performsdown-conversion and digitized sampling on a detected steady-state communication signal and extracts the conventional signal characteristic and the spurious signal characteristic of the steady-state signal by a communication signal processing method; after a higher-dimension spurious signal characteristic is reduced and optimized, the conventional signal characteristic and the spurious characteristic are fused into a steady-state signal fingerprint; and a signal fingerprint matching and safety authentication module matches the monitored steady-state fingerprint of unknown communication equipment and provides a corresponding safety strategy service according to a recognition result by a network authentication protocol. The method and the system are used for performing safety authentication on wireless communication equipment and enhancing the safety of a wireless communication network in combination with a software authentication system and have the characteristics of high concealment, high stability and safe management.
Owner:HUAZHONG UNIV OF SCI & TECH

Extension platform component of lifter

The invention discloses an extension platform component of a lift, which comprises a lifting platform and an extension platform; slide rails are arranged on both sides of the extension platform, and guide grooves cooperating with the slide rails are arranged on both sides of the lift platform, and guide grooves are arranged in the guide grooves. There are load-bearing rollers matched with the slide rail, the slide rail is provided with a rack structure, the side of the lifting platform is provided with a deceleration motor, and the deceleration motor is provided with a gear matching the rack structure; the lifting platform is provided with an outer guardrail , the extension platform is provided with an inner guardrail, and the lifting platform is also provided with a counterweight assembly; the extension platform assembly of the elevator of the present invention can be used on a lifting mechanism such as a multi-mast or a hydraulic yoke, and the extension platform can be extended during operation. , to increase the scope of work, avoiding the potential safety hazards caused by moving the elevator during operation; when the extension platform is extended, the counterweight components act in reverse to ensure the overall balance and avoid the instability of the elevator due to the shift of the center of gravity.
Owner:苏州美特斯升降机械有限公司

Heterogeneous intelligent household electrical appliance intercommunication control method based on identification service of Internet of things

Disclosed is an intercommunication control method for heterogeneous intelligent appliances based on the identify service of Internet of Things. The method comprises: 1) an intelligent appliance product registering with an appliance controller, and the appliance controller acquiring an identifier of the intelligent appliance product; 2) when controlling the registered intelligent appliance product, the appliance controller initiating an identifier parsing request to the Internet of things identifier public service platform, and acquiring address information about an information server corresponding to the identifier; 3) the appliance controller sending a query request to the information server, so as to acquire a function menu and a control protocol type of the intelligent appliance product; and 4) according to the control protocol type, the appliance controller selecting a matched control protocol from the appliance controller, then reading the function menu by means of the control protocol, and sending a control message to the appliance product. The method supports the intercommunication control between a heterogeneous appliance controller and an appliance, so that the appliance controller of any manufacturer can control appliance products of different manufacturers.
Owner:COMP NETWORK INFORMATION CENT CHINESE ACADEMY OF SCI

Resource acquisition method and apparatus, resource distribution method and apparatus, resource downloading method and apparatus, device, and storage medium

ActiveCN108683747AAvoid safety hazardsImprove securitySecuring communicationResource distributionWeb technology
The invention provides a resource acquisition method and apparatus, a resource distribution method and apparatus, a resource downloading method and apparatus, a device, and a storage medium, and belongs to the technical field of networks. According to the method and apparatus provided by the invention, an authentication mechanism is imported for a P2P network, when different peer nodes perform communication, the peer nodes use key pairs for encryption, the resources are transmitted in the form of ciphertext in the P2P network, thus avoiding the potential safety hazard if the resources are stolen when being transmitted in the P2P network and greatly improving the security of the P2P network. Moreover, each resource can have a corresponding key pair, the resources of different users can be encrypted by using different key pairs, thereby ensuring that any user uses his own key, cannot decrypt the resources of other users, and cannot access the resources of other users as a result, so thatthe mutual isolation of the resources of different users is achieved. If the method and apparatus are applied to mirror image distribution service in public cloud, a secure mirror image distributionscheme based on the P2P network can be provided, and the isolation of tenements of the public cloud can be ensured.
Owner:HUAWEI CLOUD COMPUTING TECH CO LTD

Railway tunnel detection car

InactiveCN104859672AAvoid safety hazardsImprove stabilityRailway inspection trolleysData errorEngineering
The invention discloses a railway tunnel detection car, which solves the problems of potential safety hazard existence, low efficiency and great data error of the existing mode for detecting the tunnel defects and the concrete strength. The railway tunnel detection car comprises a track car body, a PC (Personnel Computer) and a geological radar host, wherein the track car body is provided with a cab and an underpan; the PC and the geological radar host are arranged in the cab; a tunnel defect detection mechanism, a tunnel concrete detection auxiliary mechanism, a tunnel inner contour illumination system, a crack detection system and a thermogram drawing system are respectively arranged in the track car body; a GPS (Global Positioning System) connected with the PC is arranged in the cab; and the tunnel defect detection mechanism, the crack detection system and the thermogram drawing system are connected with the PC. The railway tunnel detection car has the advantages that the design is reasonable; the operation is convenient; the one-step automatic detection of defects such as tunnel secondary lining concrete cracks, water seepage and empty spaces is realized; the potential safety hazards due to manual detection by workers is avoided; the detection stability, the detection efficiency and the detection precision are greatly improved; and the detection speed is greatly accelerated.
Owner:TUNNEL TANG TECH

Assembling automatic production line for electric detonator

The invention relates to the field of electric detonator assembling, in particular to an assembling automatic production line for an electric detonator. The assembling automatic production line is characterized in that electric firing elements to be assembled are loaded in a first mechanical hand in groups and sent to a primary assembling station, chemical column pipes to be assembled are sent to the primary assembling station through a discharging station, a feeding station and a material taking station so as to be assembled with the electric firing elements to be assembled and sent to a detection station; a detection contact positioned on the upper portion of the detection station performs connection detection under the effect of a first cylinder and enters a marking station if connection is achieved and enters the discharging station if marking is achieved; discharging is performed directly if disconnection occurs, a second cylinder positioned on the discharging station pushes an upper press rod positioned at the upper end of the first mechanical hand to move downwards, the upper press rod drives a first hanging column positioned at the upper end of a discharging column through the discharging column to move downwards to the middle of a push plate, and the first hanging column pushes the push plate to rotate to finish discharging. Electric detonator assembling automation is achieved through the assembling automatic production line, potential safety hazard is overcome, and working efficiency is improved simultaneously.
Owner:黄传龙

Data verification method, verification device and mobile terminal

The invention discloses a data verification method, a verification device and a mobile terminal. The data verification method comprises the steps that a receiver receives data and executes the following verification process of obtaining an ID of receiving data and looking for a data structure corresponding to the ID of the receiving data from a stored data structure; after the corresponding data structure is found, the receiving data type is obtained and compared with a stored legal data type, and the legality of the receiving data type is judged; when the receiving data type is legal, a valve of the receiving data with a limited value domain is obtained according to the data type and compared with a legal value of the stored data belonging to the type, and the legality of the value of the receiving data is judged; if the found corresponding data structure, the receiving data type and the value are legal, the receiving data is confirmed as legal data; if the found corresponding data structure, the receiving data type and the value are illegal, the receiving data is illegal data. By applying the data verification method, the verification device and the mobile terminal, the problem that verification on the legality of the receiving data cannot be performed in the prior art can be solved.
Owner:QINGDAO HISENSE MOBILE COMM TECH CO LTD

Multi-angle adjusting frame for millimeter-wave radar

The invention discloses a multi-angle adjusting frame for a millimeter wave radar, and the adjustment frame comprises a bottom plate, an installation plate, angle adjusting mechanisms and a rotating mechanism, wherein a front end of the bottom plate is hinged to a front end of the installation plate through a hinge. The left and right sides of the bottom plate and the installation plate are symmetrically provided with the angle adjusting mechanisms, and each angle adjusting mechanism comprises an arc-shaped plate which is fixed on the bottom plate and extends upwards, and a scale which is fixed on the installation plate and extends downwards, wherein each arc-shaped plate is provided with a first arc-shaped hole, and each scale is fixedly provided with a bolt passing through the corresponding first arc-shaped hole and the bolt is provided with a locking nut. The installation plate is provided with a disc which can rotate freely, and the disc is provided with a radar body. The installation plate at one side of the disc is provided with the rotating mechanism for controlling the rotating of the disc. The adjusting frame can achieve the multi-angle adjustment of the radar body throughthe setting of the angle adjusting mechanisms and the rotating mechanism, facilitates the adjustment according to the actual use conditions, and avoids the potential safety hazards.
Owner:HEFEI HUMP ELECTRONICS TECH DEV CO LTD

Air supply and refrigerating system of refrigerator and refrigerator

The invention provides an air supply and refrigerating system of a refrigerator. The air supply and refrigerating system comprises a top liner plate, a rear liner plate, an evaporator and a fan. The evaporator is fixedly arranged on the top liner plate, a rear air duct is arranged on the rear liner plate, a water disposal pan is arranged on the lower portion of the evaporator, the two sides of the water disposal pan wrap the evaporator and are connected with the top liner plate, a fan support is arranged on the front side of the water disposal pan, the rear side of the water disposal pan is communicated with the rear air duct, the fan is arranged on the fan support, the water disposal pan and the fan support are mutually independent parts or are respectively provided with independent space, the water disposal pan and the fan support are in mutual lap joint, and the water disposal pan, the fan support and the rear air duct form a sealed ventilation duct. The invention further provides a refrigerator with the air supply and refrigerating system. Stable airflow can be collected in the ventilation duct in the air supply and refrigerating system, heat exchange efficiency is greatly improved, the water disposal pan and the fan support are provided with independent space, condensing water is isolated from an electrical part on the fan side, water and electricity are separated, potential safety hazards are avoided, and the air supply and refrigerating system is easy to install.
Owner:QINGDAO HAIER BIOMEDICAL CO LTD

Novel section cut-off machine

The invention relates to a novel section cut-off machine. The novel section cut-off machine comprises a base, a work table, a crossbeam guide rail, and cutting blades, wherein a plurality of shaft sleeves are arranged on the periphery of the base, and a lifting hydraulic cylinder is arranged in the center of the base; the work table is arranged above the base, and the center of the bottom of the work table is connected with a hydraulic lifting rod of the lifting hydraulic cylinder; the crossbeam guide rail horizontally arranged is arranged above the work table, and two sliding blocks are in sliding connection to the crossbeam guide rail; adjusting hydraulic cylinders fixed on the crossbeam guide rail are arranged at the side ends of the sliding blocks, and the side ends of the sliding blocks are connected with the top ends of hydraulic telescopic rods of the adjusting hydraulic cylinders; supporting tables with L-shaped sections are fixedly connected to positions under the sliding blocks, and driving motors are mounted on the supporting tables; the cutting blades are arranged at the lower ends of the supporting tables, and are fixedly connected to transmission shafts; and transmission mechanisms are mounted between the transmission shafts of the cutting blades and rotating shafts of the driving motors. The novel section cut-off machine disclosed by the invention is simple in structure, and automatically controls and adjusts the cutting blades, so that the cutting working efficiency for the sections is improved.
Owner:TIANJIN FUDACHANG TECH

System and method of identity authentication based on Bluetooth

The invention relates to the field of network security technologies and provides a method and a system of identity authentication based on Bluetooth. The method comprises the following steps that: a feature code is embedded into authentication token equipment; binding information is obtained according to user information and the feature code in the authentication token equipment of a user and is recorded on the server side; user equipment obtains the feature code in the binding information through visiting the server side; the user equipment computes the feature code and carries out Bluetooth broadcast; and after the authentication token equipment opens a power supply, Bluetooth broadcast data are monitored, a Bluetooth link is established with the user equipment according to a result matched with verification of the feature code, so that the identity authentication is provided for the user equipment. According to the system and the method, the common safety hidden trouble of the existing Bluetooth equipment is avoided, credible identity authentication of each business system can be reinforced, authority and security of data of each business system are improved, the power consumption of the authentication token equipment is saved, and meanwhile, the using experience of the user is improved.
Owner:BEIJING ZHONGJIN GUOXIN TECH
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