1151results about How to "Solve potential safety hazards" patented technology

The invention relates to the technical field of electric pressure cookers, in particular to an electromagnetic heating electric pressure cooker. The electromagnetic heating electric pressure cooker structurally comprises a shell, an inner pot and an outer pot, wherein a pressure switch and a control device are arranged at the bottom of the outer pot; an annular heating disk component and a sensor component are arranged between the inner pot and the outer pot; a through hole is formed in the middle of the heating disk component; the sensor component is mounted in the through hole; the heating disk component comprises an electromagnetic heating outer disk, a radiating fan, an electromagnetic heating wire coil, an electromagnetic coil, a plurality of magnetic strips, an electromagnetic heating disk cover and an anti-magnetic disk; the sensor component comprises a fixed frame, a spring arranged on the fixed frame in a sleeving manner, a sensor cap and a thermistor; and the thermistor is electrically connected with the control device. Compared with the prior art, the electric pressure cooker has the advantages of simple structure, high radiating performance, capacity of precisely controlling pressure and temperature and long service life, truly realizes application of an electromagnetic heating technology to the electric pressure cooker, and has a wide market prospect.

The invention discloses a virtual network isolation system established on a virtual machine, which comprises a router/a firewall, a physical server and a plurality of clients, wherein the physical server comprises a plurality of virtual machines and is also provided with an isolation wall, and the virtual machine is internally provided with a port communication limitation module. The invention further discloses a virtual network isolation method established on the virtual machine, which comprises the following steps: (1) establishing the isolation wall between virtual machines firstly; (2) arranging a virtual hub and a Tunnel virtual network card in the virtual machine, accessing the Tunnel virtual card of the virtual machine into the virtual hub, and establishing port communication limitation; (3) setting port mapping corresponding to the virtual machine; and (4) arranging the Tunnel virtual network card on each client, configuring Internet IP address and accessing to the virtual hub.The invention provides a safe, low-cost, rapid and conveniently-maintained network environment.

The invention discloses a BDS/GPS high-accuracy positioning method, relating to the field of satellite navigation. The method includes establishing a virtual reference station, acquiring the common-view satellite ephemeris and the satellite observation data received by a reference station Bi and a roving station M, and acquiring the geometry distance between the satellite and the reference station Bi; acquiring the pseudo range correction number of the reference station Bi; interpolating the pseudo range correction number of the virtual reference station by means of an algorithm of inverse distance to a power; interpolating the pseudo range correction number of the roving station by the roving station by means of an algorithm of inverse distance to a power; correcting the satellite pseudo range observation data received by the roving station by means of the pseudo range correction number of the roving station; and establishing a roving station satellite pseudo range observation equation to obtain the accurate coordinate of the roving station to complete the positioning. According to the invention, the safety hidden troubles of information leakage of the reference station because a multi-reference difference positioning method in the prior art must use the accurate coordinate of the reference station can prevented, and high-accuracy positioning is obtained.

The invention relates to a coal seam pre-splitting method based on gas extraction, which adopts a 'CO2 gas extraction device' as a tool to blast and pre-split a pre-mined coal seam, so as to increase the crack of the coal seam, drive out gas absorbed on the coal seam and extract the gas. The method particularly comprises the following steps: drilling a hole on the working surface of a pre-mined coal seam, filling CO2 gas extraction device into the drilled hole, sealing the drilled hole, detonating the CO2 gas extraction device, releasing high-pressure CO2 gas for deep-hole impact and pre-splitting of the coal seam, taking out the CO2 gas extraction device, and connecting the drilled hole with a gas extraction system to extract gas. The pre-splitting method of the invention can greatly enhance the permeability of the coal seam, promote the gas dissociation in the coal seam, and improve the underground gas extraction efficiency of the coal mine.

The invention discloses a data encryption mobile storage management method based on a virtual disk. The method includes the following steps: 1) writing an encryption roll identification in the head portion of the mobile storage device and building a virtual magnetic disc encryption roll in the mobile storage device; 2) checking the encryption roll identification when the mobile storage device is inserted in a designated computer and processing as a common mobile storage device if the encryption roll identification is not correct and executing the next step otherwise; 3) checking encryption roll information head of the virtual disc according to a mounting command and executing the next step if the check passes; 4) mounting the encryption roll of the virtual disk, calling virtual disk drive program with an encryption and decryption module to read and write the virtual disk encryption roll, enabling the encryption and decryption module to encrypt and decrypt in real time automatically and finally automatically unloading the virtual disk encryption roll when discharging the mobile storage device. The method has the advantages of being safe and reliable in information storage, flexible in security policy configuration, capable of simply and conveniently managing the portable storage device and high-efficient and transparent in data encryption and decryption processing.

A multifunctional window structure is composed of a window frame sectional material, a primary shaft main body, glass and a protective frame, a clean-free window screen, a primary shaft system, glass for cleaning indoors and outdoors automatically, an electric/manual switching mechanism locking state, an air filtering decompression device, a transparent, insulting, soundproof flexible rolling window which can be rolled up, double-layer flexible transparent curtain, a theft-proof telescopic guard rail, separated glass of the transparent insulating curtain, a transparent, insulating and soundproof flexible rolling door which can be rolled up. Glass (39) with the glass protective frame (40), a gland strip (70), a window sill bracket (36), a music promoting alarm (186) for opening and closingwindow, and a decorative cover (153) are installed in the separated window frame (3). The fully invisible window screen (42) and the glass (39) are connected actively. The steel cable (19) is installed on the glass protective frame (40). The upper bright band (180) is installed on the window frame sectional material (13).

The invention discloses a method for delivering goods by using a password locker. The method comprises the following steps that: a courier first inputs a user ID of an owner and mobile phone numbers of the own and the courier, and selects a locker number according to feedback use state information of each locker; a central control unit automatically opens a corresponding locker door; when the goods are placed in the locker and the locker door is closed well, the courier prints a goods deposit information voucher, and sends locker number information of the deposited goods and a goods fetching password to the owner through a mobile phone short message platform; when receiving the short message and preparing to fetch the goods, the owner inputs the user ID and the goods fetching password, and pays according to feedback payment information; the central control unit automatically opens the locker door after receiving the payment information; and the owner prints a goods fetching information voucher after taking the goods out and closing the locker door well. The method can not only improve delivery efficiency, but also avoid potential safety hazard caused by home delivery.

The invention belongs to the technical field of block chains, and provides a block chain consensus mechanism. The block chain consensus mechanism is based on a right and interest certificate consensus mechanism, and comprises a right and interest chain, a system cash chain and an award chain, wherein the right and interest chain is used for recording ins and outs of rights and interests; the system cash chain is used for recording and paying the commission charge when the rights and interests are transferred; and the award chain is used for recording an award for distributing a packaging block and loading the block to the chain. Adoption of the consensus mechanism not only solves a problem of double-spend attacks, but also solves problems that account keeping becomes more and more centralized and that general right and interest award mechanisms are inconsistent in the real world.

The invention provides an upgrading method of system built-in software, which comprises the following steps: carrying out signature authentication on an upgrade pack and judging whether the upgrade pack can pass signature authentication; acquiring the upgrade rights of the built-in software; and if the upgrade pack passes signature authentication, using the upgrade pack for upgrading according to the upgrade rights of the built-in software. By signature and rights management, the upgrading method provided by the invention realizes upgrading of the system built-in software, solves the problem of possible safety hazard caused by built-in software upgrading, and facilitates the user to update the system built-in software immediately. In addition, the invention also provides a mobile terminal.

The invention discloses a mining method for a hanging wall surrounding rock broken inclined medium thick orebody. Stope division is carried out on the orebody along the orebody trend, broken ores aretransported in stages, subsections are divided within the stages, sublevel drift mining method is adopted in advance for stoping and filling of the orebody close to the hanging wall, the drift too plates of at one ends of all sublevel mining drifts close to a heading wall are interconnected to form a slope, thus making preparations for trench ore-drawing and enabling trench ore-drawing at all subsections, then a bottom-up stoping sequence is employed for stoping and filling of each subsection orebody, thereby effectively solving the problem of potential safety hazard when a carry scraper enters a stope for a long time. In addition, implementation of downward fan-shaped medium-deep holes improves the rock drilling efficiency and safety, all construction guarantees no destruction to the hanging wall broken surrounding rock, also a rock drilling gallery is employed as the air-return way, and the problem of difficult ventilation is effectively solved. The method provided by the invention generally shows significant security measures in ore drawing, rock drilling and ventilation of middle-low grade hanging wall surrounding rock broken inclined medium thick stable orebodies.

The invention discloses an alarm level processing method and an alarm server. The method comprises the following steps of: pre-configuring information of alarm level adjustment; receiving an alarm and making a record by using the alarm server; and adjusting the level of the alarm according to recorded information and the pre-configured information of the alarm level adjustment by using the alarm server. By adopting the alarm level processing method and the alarm server, the system security is enhanced.

The invention discloses a method and a device for recognizing, authenticating, unlocking and encrypting storage space by using a human face. The method comprises steps: 11, video data are acquired; 12, a human face image in the video is detected; 13, the human face image is detected; 14, human face vivo detection is carried out; 15, human face vivo judgment is carried out; 16, a human face feature value is extracted; 17, local replication storage is carried out on the human face feature value; the above steps from 11 to 17 are repeated, and the current human face feature value is generated; fuzzy matching processing is carried out on the current human face feature value and the local replication of the human face feature value; the matching result is judged, if the matching succeeds, the next step is carried out, or otherwise, the last step is carried out; a manager is announced to call a driving program for unlocking; and the process is over. Three difficult problems of difficult input, easy breaking and difficult remembering brought by a character key can be solved; and as the human face vivo image is used, the problem of fake and hidden safety dangers caused when a lawbreaker uses human face materials such as a model, a picture and a video for human face recognition and authentication can also be solved.

The invention relates to a water level monitoring method of a washing machine and a washing machine using the same. The water level monitoring method of the washing machine comprises the following steps of: setting a washing water level and an overflow water level according to clothes quantity; detecting and judging whether the water level reaches the overflow water level; and when the water level reaches the overflow water level, stopping a motor and automatically draining. When the frequency of reaching the overflow water level exceeds the set value, the washing machine is integrally in power failure. The technical scheme provided by the invention solves the problem of water-carrying rotation of an inner barrel of the washing machine through monitoring the overflow water level, prevents water from overflowing outside the barrel, and improves the safety and the reliability of using the washing machine.

The disclosed certification method for public safety studio media management and recognition comprises: adding media file, describing file right, certifying media, and authorizing the media on display terminal. This invention provides a set of safety guard mechanism to manage the public media terminal, and overcomes the hidden danger in public media terminal displayer.

The invention provides a grouped multiple-key encryption method and a grouped multiple-key encryption device. A plurality of groups of different keys are generated, to-be-encrypted data is grouped and encryption and secondary encryption are carried out on the to-be-encrypted data with the use of the plurality of groups of different keys, thus greatly improving the security of the keys and the security of encrypted files. By the adoption of a multiple-key data-grouping encryption mechanism, the problem that all data is insecure once a key is acquired for an existing single-key encryption method is solved. As different keys are used, different encrypted data is generated after data of the same content is encrypted, thus solving the hidden safety problems of an ECB model. As an ECB model is adopted among blocks and encryption blocks are independent of each other, only data of the damaged blocks is affected and other data is not affected at all even if the encrypted data is damaged, which is conducive to data recovery and reduces the loss caused by data damage.

The invention provides a control method and a control device of a milling machine and the milling machine. The milling machine comprises a distance measuring device and a control device. The distance measuring device is installed on a machine body of the milling machine and used for measuring the distance between the distance measuring device and the ground. The distance between the distance measuring device and the ground correspondingly changes with lifting of back support legs. The control device is respectively connected with the distance measuring device and a back support leg driving mechanism of the milling machine and used for calculating the distance between the bottom of a milling drum and the ground according to the distance between the distance measuring device and the ground. When the distance between the bottom of the milling drum and the ground is smaller than the preset distance threshold, the back support leg driving mechanism controls the back support legs of the milling machine to stop descending. By means of the technical scheme, the milling machine avoids safety hazards and milling blade damage caused by the fact that the milling drum supports the machine body caused by the fact that the milling drum is contacted with the ground in the non-starting state, improves reliability and safety, and resolves the problem of safety hazards caused by the fact that the milling drum supports the machine body.

The invention provides a fingerprint identification method, a fingerprint identification apparatus and a terminal device thereof. The fingerprint identification method comprises steps of: transmitting an optical signal to an object to be detected; sensing and receiving an optical signal reflected by the object to be detected; converting the reflected optical signal into an electric signal and outputting the electric signal; receiving the electric signal and computing a pulse signal of the object to be detected according to a difference between the quality of the unreflected optical signal and the quality of the reflected optical signal in order to detect whether the object to be detected is a living body; and performing fingerprint identification verification after it is determined that the object to be detected is the living body. According to a principle that human blood reflects and absorbs light, the method detects the difference between the quality of the unreflected optical signal and the quality of the reflected optical signal so as to compute the pulse signal of the object to be detected and further determine whether the object to be detected is the living body, thereby solving a problem of a potential safety hazard that a prosthetic finger may be used for being subjected to identity identification by a conventional fingerprint identification apparatus.

The invention discloses a high-precision time synchronization system and method based on GPS, a BD and a rubidium atomic clock. The high-precision time synchronization system comprises a satellite time signal source module, a satellite time signal processing module, a main control module and an atomic clock synchronous adjusting module. The satellite time signal source module is connected with thesatellite time signal adjusting module and used for receiving satellite time information and sending the satellite time information to the signal processing module; the satellite time signal processing module is used for processing the received satellite time information, parsing the satellite time information and corresponding second pulses, and sending the satellite time information and the corresponding second pulses to the main control module; the main control module is used for sending the received satellite time information and the corresponding second pulses to the atomic clock synchronous adjusting module; the atomic clock synchronous adjusting module is connected with the rubidium atomic clock and used for synchronously adjusting the rubidium atomic clock according to the received satellite time information and the corresponding second pulses. The high-precision time synchronization system can conduct high-precision real-time synchronization on the rubidium atomic clock by using second-generation clock information of the GPS and BD and output clock signals through optical fiber connectors, PTP network connectors, serial ports and the like.

The invention relates to novel feeding equipment for an oil pipe cleaning production line, and belongs to the technical field of feeding devices for oil pipe cleaning production lines. The novel feeding equipment consists of a vibration box and a transportation device, wherein the vibration box consists of a rear material baffle board, a feeding board, a front material baffle board, a damping spring, a feeding motor and a stroke cam; the left end of the feeding board is movably installed on a rotation shaft, the rear material baffle board and the front material baffle board are installed on the left side and the right side of the feeding board; the damping spring and the feeding motor are installed at left and right ends of the lower part of the feeding board respectively, and the stroke cam is installed on the feeding motor; and the transportation device comprises a transportation groove, a driving device and a transportation motor, the driving device is installed at the lower part of the transportation groove, and an output shaft of the transportation motor is connected with the driving device. The novel feeding equipment adopts the vibration box and the transportation device to achieve automatic feeding of pipes, is high in cleaning efficiencies, time-saving, labor-saving and safe and convenient to operate, and solves problems in prior art that labor intensity of manually feeding pipes is large, the cleaning efficiencies are low, time and labor are wasted, and potential safety hazards exist when the oil pipes are hoisted manually.