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75results about How to "Improve security assurance" patented technology

Electronic device for measuring blood-pressure

InactiveCN1513417AAbility to improve common-mode rejection ratioIncrease the gain settingEvaluation of blood vesselsAngiographyComputer modulePulse wave
An electric blood pressure measurer without wound based on the algorithm for processing the pulse wave signals of inflatable cuff is disclosed. Its measuring steps include invoking the blood pressure measuring program module, running it, inflating the cuff to a certain pressure, releasing air by predefined steps, synchronously detecting the pressure of cuff and pulse wave for each step, monitoring and judging the time and pressure variation, determining if the measurement is stopped, processing the recorded pulse waves to obtain average pressure, and calculating systolic pressure and diastolic pressure.
Owner:SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD +1

Network access control method and system

ActiveCN104580078AEfficient and accurate automatic configuration schemeFlexible strategy customization functionData switching networksAuto-configurationNetwork Access Control
The invention discloses a network access control method and system and relates to the technical field of computer network information security. Different firewall brands and types are automatically computed with algorithms, an executable firewall command script is generated and issued to target firewall equipment, new strategies are automatically set for firewalls, and security control is performed on network access according to the set new strategies for the firewalls finally, so that an efficient and accurate automatic firewall strategy configuration scheme is realized, a flexible firewall strategy customization function can be implemented, and a larger security guaranteeing and flexible application basis is provided for network access control.
Owner:ULTRAPOWER SOFTWARE

Sensitive operation verification method, terminal equipment, server and verification system

The invention discloses a sensitive operation verification method, a piece of terminal equipment, a server and a verification system, and belongs to the technical field of networks. The method comprises the following steps: a first piece of terminal equipment scans a two-dimensional code used for initiating a sensitive operation and acquires information in the two-dimensional code, wherein the information in the two-dimensional code is at least used for uniquely determining the sensitive operation; and the first terminal equipment sends a first verification request to a verification server, wherein the first verification request carries verification information of the first terminal equipment and the information in the two-dimensional code. According to the invention, terminal equipment verification and a traditional verification method are combined through a two-dimensional code, the operation by users is greatly simplified, users do not need to log in, input or learn during operation and only needs to scan a two-dimensional code, security assurance is effectively improved, and the process of sensitive operation is simplified.
Owner:SHENZHEN TENCENT COMP SYST CO LTD

Public key certificate state obtaining and verification method

This invention relates to common key identification acquiring and test method, which comprises the following steps: forming and sending identification and index demands; forming and sending compound identification demands; forming and sending compound identification status responding; transferring identification status for interface test for user device testing. This invention adopts user identification catch method through interface to provide user or user device for common interface point.
Owner:CHINA IWNCOMM

Sensitive operation verification method, terminal device, servers and verification system

The invention discloses a sensitive operation verification method, a terminal device, servers and a verification system and belongs to the field of the network technique. The sensitive operation verification method comprises the steps that a verification server receives a second verification request transmitted by a sensitive operation server; the verification server transmits a verification code to a two-dimensional code server, when receiving a first verification request transmitted by a first terminal device, the verification server performs verification according to verification information of the first terminal device and information in a two-dimensional code, and when identity information of a user initiating sensitive operation is determined, the sensitive operation initiated by the user whose information in the two-dimensional code is determined is released. By means of the technical scheme, terminal device verification, identity verification and a traditional verification mode are combined through the two-dimensional code, user operation is greatly simplified, user's identity is verified further when the user performs operation, security is improved effectively, individual privacy theft and leakage are avoided, and processes of the sensitive operation are simplified.
Owner:SHENZHEN TENCENT COMP SYST CO LTD

Credible platform and method for controlling hardware equipment by using same

The invention relates to a credible platform and a method for controlling hardware equipment by using the same, belonging to the field of a computer. The credible platform comprises the hardware equipment and a credible platform control module with the function of active control, wherein hardware units, such as an active measure engine, a control ruling engine, a working mode custom engine, a credible control strategy configuration engine, and on the like, are arranged in the credible platform control module so as to realize the control functions of actively checking working mode configuration information, control strategy configuration information, firmware codes and circuit working states, and on the like for the hardware equipment. Through the identity legitimacy authentication and theactive control of the credible hardware equipment, which are realized by the credible pipeline technology, the active control and active check function, the security control system of credible hardware equipment which can not be bypassed by the upper layer can be stilled provided for the accessor of credible platform in incredible or lower-credibility computing environment without modifying the computing platform system structure and obviously reducing the system working performance.
Owner:BEIJING UNIV OF TECH

A full algorithm cryptographic card based on PCI-E interface and an encryption method thereof

The invention discloses a method based on PCI-E interface full algorithm cryptographic card, including: a cryptographic algorithm module, a FLASH memory, a PCI-E bus interface, a random numb generator, and an FPGA master control chip with NIOS soft core processor, wherein a PCI-E IP core and an algorithm state machine are integrated in the FPGA master control chip. The cryptographic algorithm module comprises a symmetric key encryption SM4 algorithm chip, a symmetric key encryption SM1 algorithm chip and an asymmetric key encryption SM2 algorithm chip. The invention also discloses an encryption method of the cipher card. The invention provides a high-performance full-algorithm cryptographic card, which simultaneously reduces the complexity of hardware circuit and energy consumption, improves the key operation speed, and the cryptographic card adopts a home-made cryptographic algorithm, so that the user's key is most securely protected.
Owner:西安得安信息技术有限公司

Smart card, terminal equipment, and authentication server for guaranteeing application safety and methods thereof

The invention provides a smart card, terminal equipment, and an authentication server for guaranteeing application safety and methods thereof. The method for executing the smart card comprises the following steps of: intercepting an application call request; sending an authentication request message; receiving an authentication response message; and when the authentication is successful, releasing the application call request, otherwise, prohibiting the application call request. The method for executing the terminal equipment comprises the following steps of: sending an application call request; receiving an authentication request message; generating and sending an authentication request message; receiving an authentication result indicating message; and generating and sending an authentication response message. The method for executing the authentication server comprises the following steps of: receiving an authentication request message; generating an authentication trigger signal; initiating and executing an authentication process under the triggering of the authentication trigger signal; and sending an authentication result indicating message. According to the invention, the smart card can actively initiate the authentication, which enhances the security assurance of application on the smart card, and the application safety can be guaranteed only by cancelling the smart card or service at the operators.
Owner:爱思开电讯投资(中国)有限公司

Outer partition wall built by adopting light concrete partition wall boards and construction method thereof

The invention relates to an outer partition wall built by adopting light concrete partition wall boards and a construction method thereof. The outer partition wall is formed by splicing a plurality of abreast light aggregate concrete partition wall boards, and is arranged between two adjacent sideboards of a main body structure, rear groove-type embedded parts are sheathed at the tops and bottomsof splicing seams of the light aggregate concrete partition wall boards, each rear groove-type embedded part is formed by welding an L-shaped steel board and a straight steel board, the horizontal edges of the L-shaped steel board are fixed on the sideboards by virtue of bolts, the vertical edge of the L-shaped steel board are parallel to the outer edges of the sideboards, the light aggregate concrete partition wall boards are shorter than the vertical distance between the two adjacent sideboards, the light aggregate concrete partition wall boards press against the rear groove-type embedded parts at the top, and plugging materials are filled in gaps among the rear groove-type embedded parts at the bottom. The outer partition wall and construction method provided by the invention belong tothe technical field of outer partition walls; the out partition wall provided by the invention has good load-carrying capacity; and the construction method has the advantages of simplicity and convenience in construction, shorter construction period, and the like, and is applicable for construction for the outer partition walls by using the light aggregate concrete partition wall boards.
Owner:BEIJING URBAN CONSTR FIFTH CONSTR GRP

Method for manufacturing and identifying ultraviolet bar code

The invention relates to a method for manufacturing and identifying ultraviolet bar codes. The method comprises the following steps: forming a bar code pattern of bar codes containing information in a printing system by a digital ink-jet printing technology; uniformly spraying ultraviolet printing ink on a medium surface according to the bar code pattern by a digital printing system; emitting ultraviolet light to the medium surface by an ultraviolet light source and exciting the ultraviolet printing ink to emit visible light; receiving the visible light by a bar code recognizer, filtering the ultraviolet light by a polarized light intercepting technology to enable the visible light to enter a sensor of the bar code recognizer; and decoding the bar code pattern by a decoder in the bar code recognizer to restore and identify the information form the bar code. Compared with the prior art, the invention has the advantages that the novel anti-counterfeiting method improves the safety assurance capability of social data, is combined with two-dimensional bar codes to add the anti-counterfeiting data capability unrecognizable for naked eyes, adopts the anti-counterfeiting technology with low cost and is easy to widely use.
Owner:上海先达企业发展有限公司

Access control methods, device and equipment based on OPC (OLE for Process Control) protocol and memory medium

The invention provides access control methods, device and equipment based on an OPC (OLE for Process Control) protocol and a memory medium. A method comprises the steps of obtaining an OPC request message sent by an OPC client to an OPC server; obtaining a semantic identifier and operand from a message header of the OPC request message after port legality of the OPC request message is determined;determining an OPC interface according to the semantic identifier and a pre-established binding information linked list, wherein the binding information linked list is used for storing a binding relationship between the semantic identifier and the OPC interfaces; determining an operation instruction of the OPC request message based on the OPC interface and the operand; and determining whether to permit the OPC request message or not based on the operation instruction and a preset access rule. An instruction level of access control over the OPC message is realized, and relatively high securityassurance for an OPC communication process is provided.
Owner:HANGZHOU DPTECH TECH

Cold-proof heat insulation structure for cold area highway tunnel and construction method of cold-proof heat insulation structure

The embodiment of the invention provides a cold-proof heat insulation structure for a cold area highway tunnel and a construction method of the cold-proof heat insulation structure, and relates to the technical field of building of the cold area highway tunnel. The occurrence of frozen damage in a high-altitude cold rich-water area can be effectively prevented, and the construction quality and the driving safety are ensured. The cold-proof heat insulation structure comprises a bonding layer, a heat insulation layer, a protection layer and a reinforcing layer, wherein the bonding layer is formed by bonding mortar, the heat insulation layer is bonded on the base surface of a wall body of the tunnel structure through the bonding layer and is formed by foam glass products, the protection layer is arranged on the surface of the heat insulation layer and is formed by light-weight coating mortar, the reinforcing layer is arranged on the heat insulation layer through the light-weight coating mortar of the protection layer, and the reinforcing layer is alkaline-resistant glass fiber gridding cloth.
Owner:中铁建大桥工程局集团第三工程有限公司

Manganese steel fork core steel rail split type frog

InactiveCN103669119AImprove integrityAvoid mutual vertical movementRail switchesManganeseHardness
The invention relates to a manganese steel fork core steel rail split type frog. The manganese steel fork core steel rail split type frog is formed by splicing a standard steel rail wing rail and a fork core. The manganese steel fork core serves as the core and is spliced with the standard steel rail wing rail and a standard steel rail fork heel rail through high-strength bolt pairs. The bottom face of a fork core rail is embedded into the upper surface of the steel rail bottom of the standard steel rail wing rail. Vertical force applied to the core rail is directly transmitted to the rail bottom of the standard steel rail wing rail. The manganese steel fork core steel rail split type frog has the advantages that a frog harmful space region and a core rail sharp point region are spliced with the steel rail through the manganese steel fork core rail, the wing rail and a spacer block in a continuous casting mode, the number of connecting parts is reduced, mutual vertical moving, caused by the phenomenon that the wing rail, the fork heel rail and the fork core are not stressed at the same time and the independent spacer block is used for force transmission and limiting, of the wing rail and the fork heel rail is avoided, and the integrity of the frog is improved. A large frame structure of the block cast high manganese steel frog is improved through the manganese steel fork core so that deep hardening can be easily achieved, accordingly, wear resistance of the frog is improved by improving initial hardness of the frog, and maintenance workloads are reduced. Meanwhile, the advantages that high manganese steel can be used for on-line welding and repairing, using cost is reduced, and the service life of the frog is prolonged.
Owner:CHINA RAILWAY SHANQIAO GRP CO LTD

Close-to-river submerged tunnel foundation pit excavation support and water precipitation and blocking method and structure

PendingCN109113076ASmall supportThe amount of water-stop work is smallExcavationsBlock effectWater table
The invention discloses a close-to-river submerged tunnel foundation pit excavation support and water precipitation and blocking method and structure. The close-to-river submerged tunnel foundation pit excavation support and water precipitation and blocking method mainly comprises the steps that a tunnel foundation fit adopts stratified and symmetrical unprotected open cut excavation, and slope protection is carried out on a slope of the foundation pit to ensure the stability of the slope of the foundation pit; a water stop curtain is arranged around the foundation pit, and the water stop curtain is formed by the water stop piles interlocking with each other, the foundation pit is closed, the water stop piles enter an impervious layer, and the water seepage of adjacent rivers outside the foundation pit is intercepted; water precipitation wells are longitudinally arranged along both sides of the foundation pit in the water stop curtain to reduce the groundwater level in the foundation pit; penetrating ground intercepting ditches are arranged on the outer periphery of the water stop curtain of the foundation pit for closure to prevent the ground water from entering the foundation pit; and drainage side ditches are arranged on both sides of the bottom of the foundation pit, and water collecting wells are arranged at appropriate intervals to exclude the water accumulated in the bottom of the foundation pit. The close-to-river submerged tunnel foundation pit excavation support and water precipitation and blocking method and structure are simple in construction equipment, the process is mature, the engineering period is shortened, the engineering investment is reduced, the combination of the water stop curtain, the water precipitation wells and the intercepting drainage sideditches is adopted, and the foundation pit has a good water precipitation and blocking effect and high safety guarantee.
Owner:CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD

Communication method and system based on satellite positioning technique and on-board terminal device

The invention discloses a communication method and system based on a satellite positioning technique and an on-board terminal device. The on-board terminal device comprises a backup power supply, an interface module, an on-board controller and an information sending module. The interface module is connected with the on-board diagnostic system of a vehicle. The on-board controller is used for starting the backup power supply and triggering the information sending module to send first short message information containing the vehicle position information when the interface module detects that the on-board diagnostic system stops supplying power. The information sending module is used for sending the first short message information containing the vehicle position information to a satellite system, so that the satellite system sends the first short message information to a customer service platform. The customer service platform sends help calling information to a fire-fighting system according to the vehicle position information. The method, the system and the device are not limited by an automobile power supply system. The short message information can be sent independently. Rescue time is fought for a user. Relatively high security assurance is provided specific to specific disasters such as flood disasters.
Owner:FAFA AUTOMOBILE (CHINA) CO LTD

Multiband three-dimensional bar code as well as manufacturing method and application thereof

The invention relates to a multiband three-dimensional bar code as well as a manufacturing method and application thereof. The three-dimensional bar code comprises two layers of bar codes, the two layers of bar codes are respectively of a bar code with visible ink printing and of a bar code of multiband ink printing, and the bar code with visible ink printing is arranged above the bar code of the multiband ink printing. Compared with the prior art, the bar code has the following advantages that: a novel anti-counterfeit method is added, and the social data safety ensuring capacity is improved; being combined with a two-dimensional bar code, the anti-counterfeit capacity of the data which can not be identified by eye can be increased; being combined with the car code, the data processing speed and data processing capacity are strengthened, and the application efficiency and accuracy are improved; the anti-counterfeit technology with low cost is realized, so the bar code is easy to be widely used; through the bar code information of different layers, the storage content and information volume of the bar code can be increased; through the bar code information of different layers, association is performed, so the safety of the storage content of the bar code is improved; and since different light source systems are required, the cracking difficulty is increased.
Owner:上海先达企业发展有限公司

Non-concentration-area turnout intelligent management system and safety control method

The invention discloses a non-concentration-area turnout intelligent management system and a safety control method. The management system comprises an intelligent lock device and an application management system. The intelligent lock device and the application management system conduct two-way data exchange. The intelligent lock device receives purview settings and information of the application management system, recognizes the identity of a turnout worker and detects the operation process. The application management system is used for setting the purview settings and receiving the information sent by the intelligent lock device. The safety control method includes a method for authenticating an operator and recording operation information, a method for monitoring whether an operation action is correct or wrong, a method for locking a turnout spanner when a locomotive rolls a turnout, a method for switch point closure detection, a method for monitoring whether the locomotive actual access direction is correct or wrong and an intelligent lock equipment safety monitoring method. A scheme for wireless networking, providing power through an internally-arranged battery and achieving lowpower consumption is provided, the construction and maintenance cost is low, illegal personnel damage is effectively avoided, operation standardization is guaranteed, safety is high, and deployment and popularization in the non-concentration-area turnout is convenient.
Owner:TRANSPORTATION & ECONOMICS RES INST CHINA ACAD OF RAILWAY SCI CORP LTD +1

Assembly type bent cap formwork system

The invention discloses an assembly type bent cap formwork system, and belongs to the field of expressway bridge engineering. The system comprises two groups of side formworks, two groups of end formworks, two bottom formworks, multiple bottom crossbeams arranged at the bottoms of the bottom formworks and two groups of primary trusses arranged on the periphery of a formwork; the side formworks, the end formworks and the bottom formworks are matched to form a bent cap; the primary trusses comprise multiple C-shaped trusses, B-shaped trusses and A-shaped trusses, and the primary trusses are provided with operating platforms, ladder stands and fences; the bottom formworks are provided with cavities matched with bridge pier columns, the bottom crossbeams arranged at the bottoms of the bottom formworks are put up on the primary trusses, upper opposite-pull rods are arranged on the upper portions of the bottom formworks, and lower opposite-pull rods are arranged at the bottoms of the bottom formworks; the lower ends of the primary trusses are fastened to the bridge pier columns through embedded bolts and cone nuts. According to the bent cap formwork system, the construction efficiency of bent cap formwork installation is greatly improved, the working environments of the processes of formwork installation, on-site steel bar binding and concrete pouring are improved, and the safety guarantee capacity is improved.
Owner:CCCC FIRST HARBOR ENG +1

Laser internal control vertical section measuring method of high-rise building

ActiveCN101592481ASolve vertical measurement errorVertical measurement error reductionUsing optical meansMechanical measuring arrangementsFloor slabEngineering
The invention provides a laser internal control vertical section measuring method of a high-rise building, which comprises the following steps: a) dividing the building into a plurality of sections in the total height; b) setting internal control points on a + / -0 plane in the building, then setting the internal control points on the first floorboard layer of each section, and correcting the positions; c) pre-forming delivering holes at corresponding positions of each layer of floor slabs, and taking the internal control points as a basis, testing point positions on the floors of each section vertically through the preformed holes; and d) correcting errors and performing detections and rechecks until the result accords with the error requirement. The measuring method has precise test result, and can obviously improve the verticality of the total height of the main body of the building, prolong the service life of the building, and simultaneously save leveling materials for the external wall.
Owner:CHINA HUAYE GROUP

Wear detection structure for brake shoe of brake as well as mounting method and control method for wear detection structure

The invention provides a wear detection structure for a brake shoe of a brake as well as a mounting method and control method for the wear detection structure. The detection structure comprises a brake arm, a brake wheel, a brake shoe and a machine base, and further comprises a detection device; the brake shoe is arranged in the brake arm and is used for limiting the brake wheel to rotate when thebrake arm is attached to the machine base; the brake arm is elastically arranged on the side edge of the machine base; the detection device is arranged on the brake arm or the machine base; and whenthe brake shoe is worn so as to enable the brake arm and the machine base to get close to each other, the detection device is triggered to cut off power supplies between a driving main machine and thebrake. According to the wear detection structure for the brake shoe of the brake, when the brake is in an open circuit condition caused by line faults, the power supply of the driving main machine and the power supply of the brake can be cut off in time, and therefore the safety guarantee of passengers of elevators or escalators can be greatly improved.
Owner:NINGBO XINDA ELEVATOR FITTINGS FACTORY

Outer partition wall built by adopting light concrete partition wall boards and construction method thereof

The invention relates to an outer partition wall built by adopting light concrete partition wall boards and a construction method thereof. The outer partition wall is formed by splicing a plurality of abreast light aggregate concrete partition wall boards, and is arranged between two adjacent sideboards of a main body structure, rear groove-type embedded parts are sheathed at the tops and bottomsof splicing seams of the light aggregate concrete partition wall boards, each rear groove-type embedded part is formed by welding an L-shaped steel board and a straight steel board, the horizontal edges of the L-shaped steel board are fixed on the sideboards by virtue of bolts, the vertical edge of the L-shaped steel board are parallel to the outer edges of the sideboards, the light aggregate concrete partition wall boards are shorter than the vertical distance between the two adjacent sideboards, the light aggregate concrete partition wall boards press against the rear groove-type embedded parts at the top, and plugging materials are filled in gaps among the rear groove-type embedded parts at the bottom. The outer partition wall and construction method provided by the invention belong tothe technical field of outer partition walls; the out partition wall provided by the invention has good load-carrying capacity; and the construction method has the advantages of simplicity and convenience in construction, shorter construction period, and the like, and is applicable for construction for the outer partition walls by using the light aggregate concrete partition wall boards.
Owner:BEIJING URBAN CONSTR FIFTH CONSTR GRP

Identity authentication method and device for terminal device, terminal device and server

The embodiment of the invention provides an identity authentication method and device for a terminal device, the terminal device and a server. The method comprises the steps of sending an identity authentication request to the server, wherein the request comprises a sequence number SN of the terminal device and a security sequence number SSN existing in the terminal device, and the security sequence number SSN has corresponding identification information; and receiving an identity authentication result returned by the server. The SSN can be effectively prevented from being broken by reverse engineering, the SSN is guaranteed to be safe and valid, and the security of the terminal device and system is improved.
Owner:BEIJING SOGOU INTELLIGENT TECH CO LTD

Brushless motor driving device for rolling shutter door

The invention relates to a motor driving device for a rolling shutter door, in particular to a brushless motor driving device for the rolling shutter door. The brushless motor driving device for the rolling shutter door comprises a driving circuit for driving a brushless motor to work and a feedback circuit for detecting working parameters of the brushless motor and feeds back the working parameters to the driving circuit; the driving circuit is electrically connected with the brushless motor, the feedback circuit is electrically connected with the brushless motor to collect the working parameters of the brushless motor, and the feedback circuit is electrically connected with the driving circuit to transmit the working parameters to the driving circuit.
Owner:HUZHOU HONGYUAN MOTOR

Information encryption method, information decryption method, terminal and computer readable storage medium

The invention discloses an information encryption method, an information decryption method, a terminal and a computer readable storage medium. In order to solve the problem that an encryption mode ina related information encryption scheme is simple, the ciphertext is easy to decode, and the information security degree is not high. According to the information encryption and decryption scheme provided by the embodiment of the invention, the Josepher ring is applied to generate the Josepher ring sequence, so that all data in the decimal data sequence obtained by converting the original information are processed differently, and the decoding difficulty after the ciphertext is intercepted is enhanced. Moreover, because the Josepher ring parameters are variable, even if the number of the datain the decimal data sequence obtained by converting the original information is not changed, different Josepher ring sequences can be obtained, so that the key matrix is diversified, and the information security is enhanced. The embodiment of the invention further provides a terminal and a computer readable storage medium, the information security is improved, the user information security guarantee is enhanced, and the user experience is maintained.
Owner:重庆葵海数字科技有限公司

Credible platform and method for controlling hardware equipment by using same

The invention relates to a credible platform and a method for controlling hardware equipment by using the same, belonging to the field of a computer. The credible platform comprises the hardware equipment and a credible platform control module with the function of active control, wherein hardware units, such as an active measure engine, a control ruling engine, a working mode custom engine, a credible control strategy configuration engine, and on the like, are arranged in the credible platform control module so as to realize the control functions of actively checking working mode configuration information, control strategy configuration information, firmware codes and circuit working states, and on the like for the hardware equipment. Through the identity legitimacy authentication and the active control of the credible hardware equipment, which are realized by the credible pipeline technology, the active control and active check function, the security control system of credible hardware equipment which can not be bypassed by the upper layer can be stilled provided for the accessor of credible platform in incredible or lower-credibility computing environment without modifying the computing platform system structure and obviously reducing the system working performance.
Owner:BEIJING UNIV OF TECH

Protective scaffold for fixed displacement of personnel

The invention discloses a protective scaffold for fixed displacement of personnel. The protective scaffold comprises an operation platform, wherein mounting plates are symmetrically arranged on the two sides of the two ends of the top of the operation platform, rapid locking assemblies are arranged at the tops of the ends, close to each other, of the two mounting plates, supporting legs are arranged at the four corners of the bottom of the operation platform, clamping grooves are formed in the middle positions of the sides, close to each other, of the two supporting legs, a protective net is hinged to the tops of the sides, close to each other, of the two clamping grooves, hinge rods are hinged to the tops of the two sides of the protective net, and clamping blocks are arranged at the bottoms of the sides, close to each other, of the two hinge rods. Through mutual cooperation of the protective net, the hinge rods, the clamping grooves and the clamping blocks, the lower portion of the scaffold can be shielded and protected, the situation that tools of constructors accidentally fall off and hurt people below can be effectively prevented, the safety guarantee of the constructors below is improved, and the protective property of the scaffold is improved.
Owner:云南建丰实业(集团)有限公司

Reinforced concrete half wrapped column formwork rapid mounting and dismounting device and construction method thereof

The invention discloses a reinforced concrete half wrapped column formwork rapid mounting and dismounting device and a construction method thereof. Profiled plates and flat substrates are combined toform formworks, lock grooves are welded to the ends of the formworks correspondingly, the formworks are combined to be a whole through the lock grooves, screws for enabling the formworks to be connected are arranged at the joints in the perpendicular direction, the screws are welded in the rising and mounting processes of the formworks, meanwhile stop levers used for controlling the thickness of column wrapping concrete are welded to the screws, the screws are connected with the two formworks, after installation, nuts are screwed up, and therefore formwork installation can be conveniently andrapidly completed; and then concrete pouring is conducted, after concrete pouring is completed, the nuts are loosened, the formworks are removed sequentially from top to bottom, and rebar heads whichare reserved after the formworks are removed serve as welding anchor bolts in the rock wool thermal insulation board construction process.
Owner:CHINA MCC17 GRP

Diethyl ether water-free treatment device

InactiveCN102126932AReduce impurity water contentLess volatile materialEther separation/purificationDiethyl etherImpurity
The invention provides a diethyl ether water-free treatment device, which comprises a raw material diethyl ether heating tank, a coarse efficiency separation column, a calandria type condenser, a refined diethyl ether receiving tank and a tail gas adsorption tank, wherein the coarse efficiency separation column is connected on the raw material diethyl ether heating tank; the outlet of the coarse efficiency separation column is connected with the inlet of the calandria type condenser; the outlet of the calandria type condenser is connected with the refined diethyl ether receiving tank; and the tail gas outlet of the calandria type condenser and the tail gas outlet of the refined diethyl ether receiving tank are connected with a tail gas adsorption liquid seal tank respectively. Raw material diethyl ether is fully reacted with metal sodium in the raw material diethyl ether heating tank by heating and refluxing to reduce the content of impurity water in the raw material diethyl ether; coarse step separation is performed through coarse efficiency separation; and a diethyl ether raw material which meets the requirement of the preparation and the production of an MO source is obtained by the condensation of the calandria type condenser after the separation.
Owner:JIANGSU NATA OPTO ELECTRONICS MATERIAL

Multi-stroke realizing circuit and multi-stroke control method for circuit breakers

The invention discloses a multi-stroke realizing circuit and a multi-stroke control method for circuit breakers. The multi-stroke realizing circuit comprises a microprocessor, a positive control bus +KM, a negative control bus -KM, a first current self-holding relay HBJ1, a circuit breaker auxiliary normally closed contact DL, a closing coil HQ, a closing relay HJ and a manual closing operation switch KK, and further comprises a switching relay QH, a second current self-holding relay HBJ2 and a transient wave relay MP. First, the microprocessor controls the switching device and further controls on-off of the closing coil so as to make the circuit breaker auxiliary normally closed contact do stroke movement repeatedly when the circuit breaker auxiliary normally closed contact fails to be closed in the first stroke of the closing coil, thus avoiding the situation in which a circuit breaker is burned out when the circuit breaker receives a closing instruction but fails to be closed; and then, the microprocessor makes the closing coil of the circuit breaker do stroke movement repeatedly, which can improve the success rate of circuit breaker closing under the condition that the circuit breaker is in the state of sub-health and cannot be closed by a single action.
Owner:STATE GRID HENAN LINGBAO POWER SUPPLY CO

Electronic device for measuring blood-pressure

InactiveCN1237936CAbility to improve common-mode rejection ratioIncrease the gain settingEvaluation of blood vesselsAngiographyComputer modulePulse wave
An electric blood pressure measurer without wound based on the algorithm for processing the pulse wave signals of inflatable cuff is disclosed. Its measuring steps include invoking the blood pressure measuring program module, running it, inflating the cuff to a certain pressure, releasing air by predefined steps, synchronously detecting the pressure of cuff and pulse wave for each step, monitoring and judging the time and pressure variation, determining if the measurement is stopped, processing the recorded pulse waves to obtain average pressure, and calculating systolic pressure and diastolic pressure.
Owner:SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD +1
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