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42 results about "Functional completeness" patented technology

In logic, a functionally complete set of logical connectives or Boolean operators is one which can be used to express all possible truth tables by combining members of the set into a Boolean expression. A well-known complete set of connectives is { AND, NOT }, consisting of binary conjunction and negation. Each of the singleton sets { NAND } and { NOR } is functionally complete.

System and method for managing security of general network

The invention discloses a system and a method for managing security of a general network, and mainly overcomes the defects of poor openness and expansibility and weak functional completeness existing in the prior network security management system. The system mainly comprises peripheral equipment, a security agent terminal, a security management center and terminal management equipment, wherein the security management center applies security technology of network access control, intrusion detection, virus detection and vulnerability management to the security agent terminal through an interface component, a data base module and a user interface component; and under the unified management and control, all security technology is mutually complemented and matched to detect and control network behaviors, so that a distributed security protection system structure in which security strategies are under central management and the security detection is separately distributed is formed. The system and the method have the advantages of flexible configuration, easy expansion, good openness, support of the different level management, and suitability for the security management and protection of the computer network in governments, colleges and universities, and large- and medium-sized enterprises.
Owner:XIDIAN UNIV

Method for on-line testing of functional completeness of network controller sideband interface (NCSI) network card

InactiveCN104618187AFunctional Integrity VerificationSolve the problem of functional verificationFunctional testingData switching networksFunctional integritySideband
The invention relates to the technical field of computer board card development and testing, in particular to a method for on-line testing of functional completeness of a network controller sideband interface (NCSI) network card. The method comprises the following steps that (1) a testing tool, the built-out NCSI network card and a mainboard are prepared, the situation that the NCSI signal function of the mainboard is normal is ensured, the built-out NCSI network card is inserted into the mainboard, a network cable is connected to the network card, and the situation that the network cable is normally communicated to a DHCP server is ensured; (2) the NCSI gating function serves as the function of the built-out network card; (3) network connectivity of the NCSI network card is tested; (4) the NCSI gating function serves as the function of a default onboard network card. The method for on-line testing of functional completeness of the NCSI network card can fully verify functional completeness of the NCSI network card, effectively achieve verification of the function of the NCSI network card, and rapidly accomplish on-line verification of the function of the NCSI network card, is easy to operate and high in efficiency, and has high application value.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD

Safety virtualization isolation method based on mirror image intelligent management

The invention relates to the technical field of cloud computing virtualization safety, in particular to a safety virtualization isolation method based on mirror image intelligent management. The method includes the following steps of dynamically distributing and adjusting virtual machine resources, dynamically moving an operating system, executing virtualization safety isolation based on mirror image intelligent management, starting virtual machines from a host machine, modifying and tracking the execution effect of isolation programs and operating programs on the virtual machines or the host machine. Through the safety virtualization isolation method, safety isolation, functional completeness, performance adaptability, behavior monitorability and the like of a virtual system can be balanced, and the safety virtualization isolation method can be used for cloud computing virtualization safety.
Owner:CLOUD COMPUTING CENT CHINESE ACADEMY OF SCI +1

Equipment real-time status-based smart substation soft strap remote anti-misoperation method

The invention discloses an equipment real-time status-based smart substation soft strap remote anti-misoperation method. According to the method, whether soft strap remote control operation is allowed is judged based on the real-time status of primary equipment and functional completeness of secondary equipment and according to principles that the primary operating equipment cannot operate without main protection, 220kv-or-above equipment cannot operation without failure protection, and a tripping switching-on protection device cannot operate a SV receiving soft strap, if the soft strap remote control operation affects the main protection and the completeness of the failure protection of the primary equipment, the soft strap remote control operation is prohibited. The method of the invention, based on real-time status information of a substation, can prevent potential safety hazards about main protection-free operation or failure protection-free operation of the primary equipment brought about by misoperation of a soft strap, and can also prevent potential safety hazards about incorrect action brought about by the misoperation of the soft strap, and can improve the operation accuracy of the soft strap and ensure safe and reliable operation of the smart substation.
Owner:STATE GRID CORP OF CHINA +2

Snowfall infiltration parameter determination system and method based on indoor simulation test

The invention discloses a snowfall infiltration parameter determination system based on indoor simulation test. The system comprises a determination system casing, a snowfall infiltration parameter measurement system, a test data acquisition and control device, a heating and cooling integrated machine, a snowfall simulation system, a geological model system and a solar radiation heat simulation system; the snowfall simulation system comprises a snowfall groove, a fixing support and multiple snowfall point simulation mechanisms; the geological model system comprises a base, a geological model groove, a longitude and latitude grating plate, and a pottery clay plate; the solar radiation heat simulation system comprises an electrothermal tube, an electrothermal tube back and forth motion mechanism and an electrothermal tube left and right motion mechanism; the snowfall infiltration parameter measurement system comprises a snowfall radial flow measurement system and a snowfall seepage amount measurement system; the invention also discloses a snowfall infiltration parameter determination method based on indoor simulation test. The method has the advantages of operation convenience and functional completeness, good practicality, good usage effect and convenient promotion, and provides an approach for further research of snowfall infiltration rules.
Owner:XIAN UNIV OF SCI & TECH

Multitask real-time data processing system and data recording and data analyzing method

The invention discloses a multitask real-time data processing system and a data recording and data analyzing method in industrial process control. An off-line analysis data processor independently used for data analysis is arranged in industrial process control and in data communication with a control field data processor by means of copying or downloading. The control field data processor is provided with a process data recording memory area, time labels are recorded during data recording, and when the off-line analysis data processor is used for post disturbance review, process data of corresponding moments can be led into for analysis from the process data recording memory area. By the aid of the multitask real-time data processing system and the data recording and data analyzing method, field data can be recorded timely and accurately, the defect of difficulty in guaranteeing of data integrity of a traditional SCADA (supervisory control and data acquisition) system due to influences of communication response delay and the like. The data analysis system has the advantages of simplicity in implementation, functional completeness, stability in operation and reliability in performance.
Owner:GUODIAN NANJING AUTOMATION

Indoor simulation system and characteristic parameter determination method of loess moisture migration rule

The invention discloses an indoor simulation system of loess moisture migration rule. The indoor simulation system comprises: an indoor simulation system casing, a loess moisture migration rule characteristic parameter measurement system, a test data acquisition and control device, a heating and cooling integrated machine, a rainfall simulation system and a geologic model system; the rainfall simulation system comprises: a rainfall groove, a circular rainfall aperture, a rainfall groove internal pressure control pipe and a water inlet pipe; the geologic model system comprises a base, a geologic model groove, a longitude and latitude grating plate, a pottery clay plate and multiple semiconductor heating and refrigerating sheets which are connected in series connection; the loess moisture migration rule characteristic parameter measurement system comprises a soil temperature and water content measurement system, rainfall radial flow measurement system and a rainfall seepage amount measurement system; the invention also discloses a loess moisture migration rule characteristic parameter determination method. The invention has the advantages of operation convenience and functional completeness, good practicality, good usage effect and popularization convenience, and provides an approach for further research of loess moisture migration rule in the condition of rainfall.
Owner:XIAN UNIV OF SCI & TECH

Methods and system for acquiring charging information of local internet protocol (IP) access

InactiveCN101998347AAchieving functional integritySolve the problem that billing cannot be performed on itMetering/charging/biilling arrangementsAccounting/billing servicesFunctional integrityMobile communication systems
The invention discloses methods and a system for acquiring charging information of local internet protocol (IP) access. The methods of the invention comprises a method (1) comprising the following steps: a wireless side network element or a home base station gateway or a local gateway collects information connected by the local IP access, generates a charging data record of the local IP access, and transmits the charging data record to a charging system by a network element of a core network; or a method (2) comprising the following steps: the wireless side network element or the home base station gateway or the local gateway collects the information connected by the local IP access to obtain the statistical information of the local IP access, and transmits the statistical information of the local IP access to the network element of the core network, and the network element of the core network generates a charging data record of the local IP access according to the statistical information of the local IP access, and transmits the charging data record to a charging system. In the invention, the problem that a local IP access function is introduced so as not to be charged is solved,thereby effectively realizing the functional completeness of a mobile communication system.
Owner:ZTE CORP

Browser window creating method and device

ActiveCN103365546AGuaranteed functional integrityMeet the requirements of manually selecting the core type of the target pageInput/output processes for data processingFunctional integrityActive state
The invention discloses a browser window creating method and device. The method comprises the steps of creating a free window and a work window for a source page requesting for creating new windows, arranging the work window at a top layer, arranging the work window to be in an active state capable of interacting with a user, arranging the free window at a backstage, arranging the free window to be in a hidden state which doesn't interact with the user, and enabling the user to finish interaction with the source page through the work window. The free window and the work window are respectively created by different browser cores, and the free window and the source page are created by the same browser core. By means of the browser window creating method, the functional completeness of the source page is guaranteed, and the requirements that the user manually selects target page core types are met.
Owner:珠海豹好玩科技有限公司

Vehicle unlocking and locking control method, device and system

InactiveCN108839635ARealize the PE functionImplement the entry functionAnti-theft devicesTransmitted powerElectric control
The invention provides a vehicle unlocking and locking control method, device and system, and relates to the field of vehicle electronic control technology. The vehicle unlocking and locking control method comprises the following steps: when obtaining an unlocking and locking request sent by a door handle switch, driving a first-kind internal antenna and a second-kind internal antenna of a vehicleto send a first key query signal and a second key query signal, wherein the transmitting power of the first-kind internal antenna is greater than that of the second-kind internal antenna; receiving an authentication signal returned by an intelligent key based on the first key query signal and the second key query signal; when only the authentication signal returned based on the first key query signal is received, determining that the intelligent key is at the external part of the vehicle; and according to the authentication signal, carrying out legality authentication on the intelligent key,and executing an unlocking and locking operation corresponding to the unlocking and locking request after the authentication is passed. With adoption of the vehicle unlocking and locking control method, a PE function can be realized only by utilizing the internal antennae instead of relying on the external antennae, and the cost is reduced on the premise that the functional completeness and performance reliability are ensured.
Owner:ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1

Method for on-line testing functional completeness of NCSI (Network Connectivity Status Indicator) adapter card

InactiveCN104598353ASolve the problem of functional verificationQuick Online VerificationFunctional testingFunctional integrityNetwork interface controller
The invention relates to the technical field of computer board card development testing, in particular to a method for on-line testing the functional completeness of an NCSI (Network Connectivity Status Indicator) adapter card. The method comprises the following steps of A, preparing a test tool, externally inserting a PCIE (Peripheral Component Interface Express) network card for the NCSI, ensuring the NCSI externally inserted network card to work normally, ensuring a mainboard NCSI signal function to be normal, inserting the NCSI adopter card and the NCSI externally inserted network card into a mainboard, connecting a network cable onto the network card, and ensuring the network cable to be normally communicated to a DHCP (Dynamic Host Configuration Protocol) server; B, gating an NCSI function as the externally inserted network card; C, testing the network connectivity of the NCSI network car; D, gating the NCSI function as a default onboard network card. The method for on-line testing the functional completeness of the NCSI adapter card can fully verify the functional completeness of the NCSI adapter card, effectively solves the problem of difficult function verification of the NCSI adapter card, quickly completes on-line verification of the function of the NCSI adapter card, is simple to operate and high in efficiency, and has higher application value.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD

Emergency sputum aspirator for respiratory medicine

The invention belongs to the technical field of medical instruments and relates to an emergency sputum aspirator for respiratory medicine. The emergency sputum aspirator comprises a body and is characterized in that a pressure-resistant damping cushion is arranged on the lower side of the body, and fixing support columns are arranged on the lower side of the pressure-resistant damping cushion; a medical instrument storage box, an external heat radiation window fixing frame and a power line protection hook are arranged on the right side of the body, the upper side of the medical instrument storage box is provided with a protection clamping slot, the medical instrument storage box is connected with a storage box protection cover which is provided with a protection clamping lock, a rubber handle is arranged on the outer side of the storage box protection cover, the external heat radiation window is provided with an external heat radiation window, and a three-phase power plug protector is arranged on the upper side of the power line protection hook. The emergency sputum aspirator for respiratory medicine has the advantages of functional completeness, convenience in use, intelligence, accuracy, safety, science, convenience, quickness, time saving and labor saving in emergency sputum clearing for respiratory patients taking a checkup of whether sputum is in throat or not, and work difficulty is relieved for medical personnel.
Owner:杜庆顺

Hostless parking radar system and control method

Disclosed are a hostless parking radar system and a control method. The parking radar system comprises a plurality of sensors (1a-1d), wherein each sensor unit can be independently used as a master sensor to coordinate other sensors as slave sensors, and controls the working time sequence of each slave sensor; and each sensor unit is independent in connection with and in communication with a vehicle bus module (3) and / or a buzzer (4). The plurality of sensors is provided with the same structure, and each sensor can be used as the master sensor, so that the functional completeness and the reliability of the parking radar system are ensured.
Owner:YU XIAOPENG

SVC controller closed-loop detecting platform based on ADPSS and user-defined modeling method

The invention discloses an SVC controller closed-loop detecting platform based on an ADPSS. The SVC controller closed-loop detecting platform comprises a working terminal, a calculating unit, a physical interface device, a power amplifier, an SVC controller and an oscillograph, wherein the working terminal is connected with the calculating unit through the Ethernet, the calculating unit is connected with the physical interface device through the Ethernet, switch position signals of all filtering branches are transmitted to the SVC controller through the physical interface device, and the thyristor switching controlling quantity of a TCR branch and switch switching signals of the filtering branches are transmitted to the physical interface device through the SVC controller. By the adoption of the structure, the defect that a prior hybrid simulation mode is limited by a simulation scale is overcome, a good test platform and a good test method are provided for verifying the dynamic performance and functional completeness of an SVC under an alternating current and direct current series-parallel large power grid, guidance is provided for field implementation, and a solid foundation is laid for safe and stable operation of an SVC device in an actual power grid.
Owner:STATE GRID CORP OF CHINA +1

Intelligent interactive system, interactive terminals and control platform

The application relates to an intelligent interactive system, interactive terminals and a control platform. The intelligent interactive system includes a control platform and a plurality of interactive terminals; human-computer interaction modules of the interactive terminals are configured to collect human-computer interaction instructions and send the human-computer interaction instructions to the control platform; the control platform can receive the human-computer interaction instructions sent by the interactive terminals, performs a corresponding response for the human-computer interaction instructions, and then sends the response execution results to the interactive terminals through a second wireless communication module; and the interactive terminals can output corresponding human-computer interaction information according to the response execution results. By separating the interactive terminals from the control platform, on the one hand, the system structure and data interaction capability of the interactive terminals are simplified, and the repeated functions between the terminals are avoided; and on the other hand, the size and volume of the interactive terminals and the control platform can be set smaller, and thus the space occupancy rate, energy consumption and cost can be lower under the premise of ensuring the functional completeness.
Owner:VITALNK IND SHENZHEN +1

A three-meter control device based on mobile terminal and its control method

The invention discloses a three-meter control device on the basis of a mobile terminal, comprising a user mobile phone (1), an IP host computer (2) and a thee-meter controller (3), wherein, the user mobile phone is taken as the operational terminal of the user and is used for sending the operating instruction to the three-meter controller by the IP host computer and receiving the voice prompt of the IP host computer; the IP host computer is used for receiving the operating instruction of the user mobile phone and sending to the three-meter controller in order to realize the operation on the three-meter controller; the IP host computer receives the instruction and the data as well as the signal sent by the three-meter controller and dials a connection to the user mobile phone as well as informs the user in a voice mode; the three-meter controller is used for controlling the three-meter device to realize the functions of reading meter, remote control and monitoring. The invention also discloses a method for controlling the three meters on the basis of the mobile terminal. The invention has wide range of coverage area and low cost as well as high reliability and functional completeness, and can send the data signal to the user conveniently and in time, thereby effectively performing necessary control to the three meters.
Owner:周津诚

Electronic pen for interactive electronic whiteboard

InactiveCN107248351AReduce pollutionSave yourself the hassle of taking notesReadingElectrical appliancesKey pressingWhiteboard
The present invention discloses an electronic pen for an interactive electronic whiteboard. The electronic pen comprises an electronic pen case and a pen head; the electronic pen case is of an integrated structure; the bottom of the electronic pen case is provided with a wireless transmission port; the external side of the electronic pen case is sequentially provided with a recording hole, a liquid crystal display screen, a USB interface and keys from top to bottom, wherein the keys include a power source key, a page down key, a function key and a page up key; a circuit board is arranged in the electronic pen case; a sound recording device is arranged above the circuit board; a storage device is arranged below the circuit board; and a lithium battery is arranged to the left side of the storage device. The electronic pen of the invention has the advantages of structural simplicity, functional completeness, small size and portable convenience, and can improve the quality of teaching and meetings.
Owner:CHUZHOU ZHUANGYUANLANG ELECTRONICS TECH

Audio data processing method and device

The invention provides an audio data processing method and device. The audio data processing method comprises the steps that when a storage instruction sent by a terminal is received, storage information of audio data corresponding to the storage instruction is obtained; when a playing instruction sent by the terminal is received, a target data source of the audio data is looked up according to the storage instruction; the audio data is played according to target data source; the audio data is played according to the target data source. Due to the fact that an intelligent loudspeaker box obtains the storage information of an audio signal when the terminal sends the storage instruction, the corresponding data source is obtained according to the storage information during next-time playing, the problem of playing failure when no local data source exists is avoided, and the functional completeness is improved.
Owner:GUANGDONG OPPO MOBILE TELECOMM CORP LTD

Charging method for second layer tunnel protocol user based on point-to-point protocol mode

The invention discloses a method for charging an L2TP user in a PPP mode. The method comprises the following steps: A, before a user is on-line, if a charging server used by an access server supports charge in a L2TP mode, the user is configured to charge in the L2TP mode on the access server; and if the charging server used by the access server does not support the user to charge in the L2TP mode, the user is configured to charge in the PPP mode and enter step B; B, when the user is online, a tunnel is established, after conversation establishment is completed, the access server changes a tunnel-link-start message into a start message, and transmits to the charging server; and C, when the user is off line, the access server changes the tunnel-link-stop message into a stop message and transmits the stop message to the charging server. The method ensures that the access server can selectively transmits a charging message supported by the charging server according to the functional completeness supported by equipment of the charging server, thereby improving the compatibility of various charging servers.
Owner:ZTE CORP

Automatic window opening/closing and gas detecting device based on SCM (Single Chip Microcomputer) infrared remote control

The invention discloses an automatic window opening / closing and gas detecting device based on SCM (Single Chip Microcomputer) infrared remote control. The device comprises an information acquisition terminal and an operation executing terminal, wherein the information acquisition terminal is used for acquiring outdoor temperature information and a concentration of indoor harmful gas; the operation executing terminal is placed near a window and used for opening and closing the window; the information acquisition terminal comprises a first SCM microcontroller, 5V DC power supply, a temperature sensor, a gas sensor, a keyboard input circuit, a liquid crystal display circuit, a sound-light alarm circuit, an infrared emitting circuit and a first RS232 communication interface circuit; and the operation executing terminal comprises a second SCM microcontroller, a 12V DC power supply, a voltage conversion circuit, a relay switching circuit, an optical coupler isolation circuit, a motor drive circuit, a motor rotating unit, an infrared receiving circuit and a second RS232 communication interface circuit. The device has the functions of detecting the concentration of indoor harmful gas and opening or closing the window according to the outdoor temperature, and has functional completeness and high practicability.
Owner:SHAANXI YATAI ELECTRIC APPLIANCE

System and method for managing security of general network

The invention discloses a system and a method for managing security of a general network, and mainly overcomes the defects of poor openness and expansibility and weak functional completeness existing in the prior network security management system. The system mainly comprises peripheral equipment, a security agent terminal, a security management center and terminal management equipment, wherein the security management center applies security technology of network access control, intrusion detection, virus detection and vulnerability management to the security agent terminal through an interface component, a data base module and a user interface component; and under the unified management and control, all security technology is mutually complemented and matched to detect and control networkbehaviors, so that a distributed security protection system structure in which security strategies are under central management and the security detection is separately distributed is formed. The system and the method have the advantages of flexible configuration, easy expansion, good openness, support of the different level management, and suitability for the security management and protection of the computer network in governments, colleges and universities, and large- and medium-sized enterprises.
Owner:XIDIAN UNIV

Computer software teaching analysis system

The invention provides a computer software teaching analysis system, which comprises a student mobile phone terminal, a teacher mobile phone terminal and a computer terminal. The computer terminal isconnected with the student mobile phone terminal through wireless signals and connected with the teacher mobile phone terminal through the wireless signals, and the computer terminal is internally provided with a central processing unit. A memory, a student information module, a teacher information module, an information sending module and a teaching analysis module are arranged in the central processing unit. The central processing unit is in two-way data connection with the memory; the student information module is in two-way data connection with the central processing unit; the teacher information module is in two-way data connection with the central processing unit; the information sending module is in two-way data connection with the central processing unit; the teaching analysis module is in two-way data connection with the central processing unit. Compared with the prior art, the computer software teaching analysis system has advantages of reasonable design, timeliness in problem feedback, convenience in information acquisition and functional completeness.
Owner:安徽盛偕电子信息科技有限公司

Visual intercom access control Internet-of-Things system

The invention provides a visual intercom access control Internet-of-Things system. The visual intercom access control Internet-of-Things system comprises an Internet-of-Things platform subsystem, a function application subsystem and a monitoring protection subsystem; the Internet-of-Things platform subsystem provides cloud computing platform services and includes an alarm receiving server, a community medical service management server, an estate management server, an e-commerce server and the like; the function application subsystem realizes various kinds of function servers by means of an intelligent gateway; the monitoring protection subsystem comprises at least one communication node used for monitoring illumination, smoke and fire alarm and access control parameters in a building; the communication nodes are connected with a centralized controller; and the centralized controller is connected with a video monitoring management center server, an intercom and alarm management center server, an all-purpose card management center server and firewall and switch network equipment. The visual intercom access control Internet-of-Things system has the advantages of high stability, functional completeness, high compatibility and convenience in use.
Owner:合肥若涵信智能工程有限公司

Enterogastritis endoscopic biopsy examination device

InactiveCN107374679AReduce the burden of treatmentVersatileSurgeryVaccination/ovulation diagnosticsTreatment burdenEyepiece
The invention belongs to the technical field of medical instruments and relates to an enterogastritis endoscopic biopsy examination device. The technical scheme includes that the enterogastritis endoscopic biopsy examination device comprises a cell detector, a fixator is arranged on an electronic microscopic processor which is arranged on the cell detector, the upper side of the electronic microscopic processor is provided with a lens cone with a warning button, the left side of the lens cone is provided with an observation eyepiece with a lens, the upper side of the lens cone is provided with a connection base, a telescopic connector is arranged on a metal supporting frame which is arranged on the upper side of the connection base, a detection analyzer is arranged on the upper side of a screen fixator which is arranged on the upper side of the metal supporting frame, and the detection analyzer is provided with an analyzer screen. The enterogastritis endoscopic biopsy examination device has advantages of functional completeness, convenience in use, integration of pathological tissue collection, electron microscope technique and image collection and processing, time saving, labor saving, intelligence, convenience, safety, high efficiency and great relief of later-stage treatment burden of medical personnel.
Owner:丁伟山

TX2 core board based interface expansion board

The invention relates to the field of intelligent robots and discloses a TX2 core board based interface expansion board. The TX2 core board based interface expansion board comprises a power circuit, an internet access circuit, a fan control circuit, a GPIO expansion circuit, a CSI camera circuit, antennas, an audio encoding and decoding circuit, a functional switch, a USB2.0MicroAB circuit, USB3.0Type A circuits, an HDMI circuit, CAN bus circuits, RS-232 circuits and RS-485 circuits. The power circuit, the internet access circuit, the fan control circuit, the GPIO expansion circuit, the CSI camera circuit, the antennas, the audio encoding and decoding circuit, the USB2.0MicroAB circuit, the USB3.0Type A circuits, the HDMI circuit, the CAN bus circuits, the RS-232 circuits and the RS-485 circuits are all connected with a TX2 core board. The TX2 core board based interface expansion board has advantages of functional completeness and interface sufficiency of the TX2 core expansion board.
Owner:合肥哈工特安智能科技有限公司

Fabricated protective arch frame for tunnel construction

The invention discloses a fabricated protective arch frame for tunnel construction. The fabricated protective arch frame mainly comprises bases, an adjusting frame, limiting mechanisms and a supporting mechanism. Cross grooved rods are fixedly mounted in middles of bottom ends of the bases respectively, stress plates are fixedly connected to lower portions of front and rear ends of the bases, anda first supporting rod and a second supporting rod are rotationally mounted on the upper portion of each base. The limiting mechanisms externally sleeve upper portions of the first supporting rods andthe second supporting rods, the supporting mechanism is mounted between the two limiting mechanisms, a second rotating sleeve is mounted on the lower portion of each second supporting rod, and a second rotating shaft is rotationally mounted on the inner side of each second rotating sleeve. The fabricated protective arch frame for tunnel construction is reasonable in structural design, high applicability is achieved, the device height can be quickly adjusted when different supporting heights are required, and high stability and durability are achieved; in addition, perfect protection and functional completeness are realized, and influences on protective safety are avoided; by prefabricated arrangement, use efficiency is guaranteed.
Owner:NEIJIANG NORMAL UNIV

Air detection method and air detection device

The invention provides an air detection method. After a detection device is started, a processor receives a detection value sent by an environmental detector, and the environmental detector comprises any one or combination of a dust sensor, a temperature sensor and a gas sensor; the processor makes comparison on the detection value and a preset value; if the detection value exceeds the preset value, the processor generates warning information; the processor sends the warning information to a warning device; the warning device warns based on the warning information. The environmental detector comprises a dust sensor, the temperature sensor and the gas sensor, so that the problem that an air detection device in the prior art has single function is overcome, and the functional completeness is increased.
Owner:福建中金在线信息科技有限公司
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