432results about How to "Avoid unsafe factors" patented technology

The invention relates to a client distribution network automatic remote real-time monitoring system, which conducts remote real-time monitoring on electrical equipments of at least one low-voltage and mid-voltage substation via a main network or a standby network. The system comprises a centralized control center and a plurality of subsite terminals which are communicated with the centralized control center via the network. The system has the advantages of that: a set of automatic management systems are constructed on the subsite terminals, and the centralized control center conducts uniform real-time monitoring on a client substation through the management mode of communicating the network with the centralized control center; thereby ensuring the safe operation of the client substation when unattended, creating an automatic monitoring system, supplying the automatic remote monitoring system of a gap that a prior domestic substation can only be used in a large-scaled substation in the main grid of the power network due to high cost and challenging communication requirements and a common low-voltage and mid-voltage substation is unable to realize automatic remote monitoring due to financial and technical reasons, and establishing the technical basis for major electrical users to achieve socialized professional operation and maintenance.

The invention discloses a cellular denitration catalyst regenerating solution for a coal fired power plant and a regenerating method thereof. The regenerating solution comprises a cleaning solution and an activated replenishing solution, wherein the cleaning solution contains H2SO4 and an emulsifying agent S-185; the activated replenishing solution contains VOSO4 and ammonium paratungstate; and ultrasonic cleaning is adopted in the cleaning method. The regenerated catalyst has relative activity (K/Ko) of 0.95-0.99 and SO2/SO3 conversion rates of both less than 1 percent and meets the requirement on the engineering; and the regenerating process is simple in operation and is suitable for industrialized massive regeneration.

A balancing valve for the engineering machine with 8-50 tons of lifting weight is composed of main valve and pilot valve. The said main valve consists of cylindrical valve body and main valve core. The said pilot valve is positioned in the main valve core. The core of pilot valve is linked to main valve core via springs. The main valve core is linked to valve body via more springs with different spriral directions and rigidities. Its advantages include correct, sensitive and reliable control, and preventing the burble dropping down of load.

The invention provides an intelligent logistics device and an intelligent logistics system. The device comprises a self-assisted cabinet (including grids provided with cabinet doors and electric control locks) for storing expresses, a control module, a wireless communication module and a barcode scanning module, wherein the device is accessed to a background server of a logistics company through the wireless communication module of the control module, so that data communication with the background server of the logistics company is realized. Verification barcode information is acquired by the barcode scanning module and the verification barcode information is verified through the control module, so that the step of telephone communication between the sender and the receiver is canceled in virtue of the manner that the verification barcode information is verified through the barcode scanning module and the control module, and the efficiency is improved; the verification result is more accurate and potential unsafe factors are avoided, so that the family privacy of the receiver is protected well. The device and system are relatively wide in applicability, and are suitable for express companies as well as persons and companies besides the express companies, so that the person-to-person logistics demand is expanded.

The invention relates to a dynamic trajectory planning method for performing obstacle avoidance and overtaking based on lane line parallel shift. Different state spaces are established for different road scenes, so that trajectory planning under different working conditions is achieved; and a more accurate subsequent real-time trajectory is planned through coordinate conversion and decoupling. Themethod has the beneficial effects that the different state spaces are established for the different road scenes, so that the effective and accurate trajectory planning under the different working conditions is achieved; through the coordinate conversion and decoupling, the more accurate real-time trajectory planning is achieved for a subsequent trajectory planning party; a planned trajectory screening objective function and constraint conditions are set, so that the trajectory planning efficiency is improved, and the safety, comfort and stability requirements of trajectory planning are met; and evaluation conditions for ensuring the path consistency are set, so that the situation that unsafe factors are generated for a planned path due to environmental changes during vehicle running is avoided, and a dangerous warning of the planned path can be found in time to carry out trajectory re-planning or a driver can be reminded to carry out intervention operation when an optimal path cannotbe selected.

The invention discloses a multifunctional detachable yacht of diving and sightseeing. A lower part of the yacht on water is provided with a rise-and-fall underwater sightseeing cabin; both ends of the underwater sightseeing cabin are provided with air circulation tubes; the middle of the air circulation tubes are provided with a rise-and-fall elevator; the circumference of the underwater sightseeing cabin is provided with a meshy diving chamber which is integrated into a whole with the underwater sightseeing cabin via a rise-and-fall positioning rod; a center on the bottom of the yacht on water is provided with a flute; the underwater sightseeing cabin is hung on a yacht lifting device; when a preset limitation is reached, the underwater sightseeing cabin and the meshy diving chamber are reset synchronously inside the flute. The invention solves the complication of the underwater sightseeing facility and the uncertainty of the safety terminal technique and gets rid of the dependency on high required technical facilities. The simple and scientific structure design guarantees safety and is easy for management and control. The multifunctional detachable yacht of diving and sightseeing has the advantages of low manufacture and operating cost and safe and comfortable riding.

A process of preparing 3ú¼4'-diamino diphenyl ether. It comprises: taking nitrodiphenyl ether as the raw material, hydrazine hydrate as the reducing agent, reducing in the presence of a catalyst, obtaining 3ú¼4'-diamino diphenyl ether at a low pressure. The invention overcomes unsafe factors in the method of high-pressure hydrogenation, avoid the step of highpressure distillation, and has mild reactive conditions. The product has good purity. So the invention is suitable for industrial production.

A vehicle battery management system main relay adhesion detection circuit and a vehicle battery management system main relay adhesion detection method are disclosed. The circuit comprises first to third switches, and first, second, seventh and eighth resistors. One end of the first switch is connected with a positive bus. The first and second resistors are connected in series into a voltage dividing network. The first resistor is connected with the other end of the first switch. One end of the seventh resistor is connected with the non-battery side of a general positive main relay, and the other end of the seventh resistor is connected in series with the eighth resistor to form a voltage dividing network. The second resistor and the eighth resistor are connected with a sampling reference ground. One end of the second switch is connected with a negative bus, and the other end of the second switch is connected with the sampling reference ground. One end of the third switch is connected with the non-battery side of a general negative main relay, and the other end of the third switch is connected with the sampling reference ground. Safe, simple and reliable main relay adhesion detection is realized.

The invention discloses a portable bank card data processing device, system and method. The portable bank card data processing device comprises a centre processor, a touch IC (Integrated Circuit) card reader-writer which is used for reading and writing data of the inserted IC card, a radio frequency IC card reader-writer which is used for reading and writing the data of the IC card by a manner of non-touching, an IC card safety chip which is used for certifying the data of the IC card read by the touch IC card reader-writer or certifying the data of the IC card read by the radio frequency IC card reader-writer, a storage device which is used for storing the operation system, application programs and IC card transaction information, a communication encryption chip which is used for encrypting the output data and decrypting the input data, a communication model which is used for transmitting the encrypted output data of the communication encryption chip and transmitting the received input data coming from outer part to the communication encryption chip, a keyboard which is used for providing an input interface of the IC card transaction information, a displayer which is used for displaying the IC card transaction information, and a cell. The invention solves the payment information safety problem of bank cards which are applied to remote payment.

The invention discloses a system client authorization authentication method based on a B/S framework. A user needs to apply a unique secret key to authenticate an authorization identity and further to complete the installation of a client, client software obtains a unique physical address MAC address of a host, the unique physical address MAC address is encrypted by MD5 and sent to a server end after being connected with an SALT randomly generated by the system, the user submits a computer terminal authentication application, after verification is passed, the SALT randomly generated by the system is stored in a database, and a Hash value of the MAC address and the SALT is added into an authentication passing list, and the client accesses the authentication. According to the invention, the terminal authorization authentication technology is combined in the B/S framework, various problems of terminal identity authentication by utilizing the mac address through a browser in the B/S framework are effectively solved, the safety problem is also solved, phishing and data interception are avoided, and the probability of illegal users to obtain terminal installation authority is lowered.

The invention discloses a user security access control method as well as a device and a system thereof, applied to a user network access process. The user security access control method comprises the following steps: a client of a user is authenticated by an authentication server and requests a DHCP server for obtaining an IP address; the DHCP server receives the request sent by the client for obtaining an IP address; the DHCP server obtains an IP address level corresponding to the client from the authentication server according to the request; the DHCP server assigns an IP address of a corresponding network to the client according to the obtained IP address level and sends the assigned IP address to the client. and the IP address level of the client is decided by a security level which is obtained by the client after security detection. The invention is applied to improve the security of the user access network while simplifying the control flows of the user access network and improving the reliability of the access control process.

The invention discloses a virtual machine management system and a file access method. The method comprises the following steps: a creating step, a connection establishing step, a receiving step and an equipment creating step, wherein in the creating step, a virtual machine and a first monitoring progress of the virtual machine are created through a virtual machine hardware simulator; in the connection establishing step, remote desktop connection is established between the virtual machine hardware simulator and a client through the first monitoring progress; in the receiving step, the virtual machine hardware simulator receives file access address information transmitted from the client established connection with the virtual machine; the file access address information comprises a designated physical machine address and an access path; in the equipment establishing step, if the virtual machine hardware simulator receives the file access address information transmitted by the client established connection with the virtual machine, the virtual machine hardware simulator created virtual equipment for accessing a file under the path designated by the received file access address information; and the created virtual equipment is mounted on the virtual machine for the client to access. Through the adoption of the virtual machine management system and the file access method disclosed by the invention, users can access files in any designated physical machine through remote virtual machines.

The invention discloses an extracting process of pulullan polysaccharide and belongs to the technical field of biology. The extracting process mainly comprises the following steps of: (1), filtering by a plate frame to remove bacteria; (2), performing thermal treatment to remove protein; (3), carrying out primary ultra-filtration; (4), removing ion by use of ion exchange resin; (5), discoloring active carbon; (6), carrying out secondary ultra-filtration; and (7), drying, crushing and packaging. According to the extracting process of the pulullan polysaccharide disclosed by the invention, the bacteria in fermentation liquor are removed by adopting a plate frame filter, so that not only can solvent residue caused by adding an organic flocculating agent and inorganic flocculating agent be effectively avoided, but also the bacteria and diatomite can be recycled to obtain more benefits; meanwhile, potential unsafe factors caused by volatility of solvents (ethanol, methyl alcohol, isopropanol and the like) in the conventional process can be avoided by adopting a microwave drying process or a vacuum drying process; moreover, much steam consumed by recycling and distilling an organic solvent can be saved; the production cost is saved; the product yield can be up to 90%-96%, the purity is as high as 90%-98%, the quality is good, and the production process is safe, continuous and automatic.

The invention relates to a 3G wireless internet assess router, which comprises a body composed of a shell, a control operation panel and internal electric components, and external accessories composed of a power adapter and a 3G wireless internet access card; as the power adapter which supplies power for the router independently and a 3G internet access card connected with the router through USB/PCMIC interface are arranged, a series of complicated settings of computer terminals for wireless internet access in the prior art are prevented; interferences between electric connection wires of computer terminals and wireless internet access devices are eliminated; insecurity factors caused by computer terminals which are directly revealed on the internet are avoided; meanwhile, the application requirement of multi-user sharing internet access is satisfied. Compared with wireless internet access device in the prior art, the 3G wireless internet assess router obviously has more reasonable structure, convenient settings and use, low use cost, reliable operation and strong adaptability, good security and strong practicality.

The invention discloses a brand-new silica gel and carbon material-compounded VOCs (Volatile Organic Compounds) adsorption material and application thereof to adsorption of VOCs. According to the adsorbent, rigid porous silica gel with high specific surface area is used as a bone glue material, and a macromolecular polymer and a biomass are used as carbon sources; the bone glue material and the carbon sources are introduced into a silica gel channel, and polymerization and high-temperature carbonization are initiated under a hydrothermal environment. Therefore, the brand-new carbon-silicon composite adsorption material is obtained. The adsorbent has hydrophobicity and high-selectivity adsorption capacity for organic molecules, is extremely high in heat resistance and excellent in desorption property, can be applied to a high-concentration organic waste gas recycling technology in the industry, and can also be applied to a VOCs rotating wheel adsorption device and indoor organic waste gas purification.

The invention relates to a preparation method of an environment-friendly hydrophobic polyurethane grouting material, belonging to polyurethane compositions. The environment-friendly hydrophobic polyurethane grouting material is made from the following raw materials in parts by weight: 100 parts of polyurethane prepolymer, 1-6 parts of high-boiling-point solvent, 0.001-0.004 parts of retarder, 1-5parts of surfactant, 0.1-3 parts of catalyst and 10-30 parts of plasticizing agent. The invention provides the preparation method of the environment-friendly hydrophobic polyurethane grouting material which does not contain combustible, explosive, poisonous solvents and still has excellent technical indicators, such as service performance in grouting and bonding strength. The accidents of combustion, explosion and poisoning are avoided. The environment-friendly hydrophobic polyurethane grouting material is safe in use, is beneficial to the health of operating personnel and environmental protection, and is applicable to the construction of railways, highway tunnels, bridge constructions, and ports and docks, hydraulic power facilities, exploitation of mineral resources, embankment supporting projects, waterproofing treatment for the original construction of underground and underwater construction projects, and the normal maintenance and reinforcement and the fault repair treatment on water leakage and permeability for the on-service underground and underwater construction projects.