Protection method dividing management region in optical network

A method for protecting the management area division in the optical-fiber network, which belongs to the technical field of optical-fiber network communication and comprises the following steps: (1) initializing the given single-domain physical topology; (2) creating different subordinate virtual topologies according to different protection modes, all single-domain virtual topologies being connected through boundary nodes so as to form a multi-domain virtual topology; (3) searching the path on a virtual topological diagram through a path selecting function when the business request arrives; and searching virtual routings among the virtual lodging node pairs in multiple domains, when source lodging nodes are not in a same domain. The invention not only can abstract the multi-domain optical-fiber network into virtual topological diagram for solving the problem of cross-domain routing, but also considers the divisional special protection, sharing protection, and non protection in different ...

Video monitoring method and system

The invention discloses a video monitoring method and system. The method comprises the following steps: analyzing an area to be monitored, and building a three-dimensional simulation monitoring scene corresponding to the monitored area; determining the space coordinate information of pre-configured video acquisition devices in the three-dimensional simulation monitoring scene according to the position information of the video acquisition devices; acquiring video information acquired by the video acquisition devices, analyzing the video information, determining the video parameter information of the video information, and determining the projection position information of the video information in the three-dimensional simulation monitoring scene according to the video parameter information, the space coordinate information and the coordinate system of the three-dimensional simulation monitoring scene; and constructing a three-dimensional simulation monitoring roaming scene according to the ...

Preparation method of handicraft type salt and mold for press forming the same

A manufacturing method for a handicraft article salt includes the steps: (1) preparing materials; (2) drying and pressing the materials to form; (3) demoulding; (4) checking product; (5) packaging, namely finished product. A die for the handicraft article salt includes an upper convex die, an upper concave, a lower concave die and a lower convex die. The invention has the advantages of : (1) selecting refined salt as the material and the material section is novel, easily acquired and cheap; (2) selecting a press forming method and the manufacturing method is safe, energy-saving and protecting environment; (3) increasing the variety of salt products and improving the economic benefits of enterprises; the invention also has the advantages that: (4) the concave die is divided into the upper part and the lower part, thus being not only convenient for the processing of the inner surface of the concave die, but also being convenient for the product for press forming to be gotten out from the ...

Water-collecting power generation device for generating power and collecting water by using water mist and preparation method of water-collecting power generation device

The invention discloses a water-collecting power generation device for generating power and collecting water by using water mist and a preparation method of the water-collecting power generation device. The water-collecting power generation device comprises a rotating shaft, a water-collecting power generation device and a water-collecting power generation device, a coil is wound in the middle of the rotating shaft and forms a closed loop with an external circuit; an N-pole magnet and an S-pole magnet are symmetrically arranged on the outer side of the coil; the device is characterized in that the two ends of the rotating shaft are each fixedly sleeved with a cylinder, a thick-wall hollow pipe type liquid suction assembly is arranged on the outer side of each cylinder, and each thick-wall hollow pipe type liquid suction assembly and the corresponding cylinder are coaxially arranged and fixed through a support; a plurality of inverted-V-shaped structures are arranged between the cylinder ...

Medicine composition for treating headache and preparing method

Shield tunneling machine cable for high-voltage power transmission

The invention discloses a shield tunneling machine cable for high-voltage power transmission, and relates to the technical field of shield tunneling machine cables, the shield tunneling machine cable comprises a cable body, the cable body comprises an outer sheath, a reinforcing layer is arranged on the inner side of the outer sheath, an inner sheath is arranged on the inner side of the outer sheath, and cable cores are uniformly arranged in the inner sheath. The outer side of the cable core is sleeved with an inner shielding layer, the outer side of the inner shielding layer is sleeved with an insulating layer, and the outer side of the insulating layer is sleeved with an outer shielding layer. The problem that the outermost layer of the shield tunneling machine cable is torn and damaged when the shield tunneling machine cable is subjected to high-strength tensile force is solved, and meanwhile, the problem that part of existing shield tunneling machine cables have better extrusion resistance ...

Over-current protector of voltage transformer

The invention discloses an over-current protector of a voltage transformer, comprising a protection switch (PTK). A contact of the protection switch (PTK) is a normally closed contact (ZJ); an operating coil (XQ) of the protection switch (PTK) is connected with the normally closed contact (ZJ) in series and connected in series between a ground and a neutral point at the primary side of the voltage transformer (TV) to prevent impact of fault point grounding current on the primary side of the voltage transformer (TV); and the protection switch (PTK) is a relay, a contactor or a circuit breaker. The over-current protector can avoid the impact of the fault point grounding current and completely prevent the impact of fault point grounding current at the primary side of the voltage transformer and the damage of the voltage transformer or the fusing of a high-voltage fuse at the primary side of the voltage transformer, and has the advantages of simple structure and convenient installation and ...

Multi-failure protection method for multiple service levels in WDM network

The invention relates to a protection method with a plurality of service grades for multiple faults in WDM networks, pertaining to the technical field of optical network communication. The method comprises the steps as follows: step one: connections of different grades are established for service requests arrived, that is, working accesses and accesses for protection are established; step two: for service connections conveying data in the networks, when failed links occur, the service grade is judged, different protection methods are executed to services of different grades, and enhanced recovery is executed to the service of the highest grade. The method of the invention meets the requirements for different protections raised by users in case of multilink faults in the WDM optical networks. EDSP takes into consideration of an enhanced recovery mechanism for load balancing, protection of resource sharing and resource recycling, so as to improve resource utilization rate and reduce blocking ...

Hard disk shell machining device

The hard disk shell machining device comprises a base, a pressing mold base and a pressing base, a mold groove is formed in the upper portion of the base, guide columns are installed at the four corners of the upper portion of the pressing mold base correspondingly, and the top ends of the guide columns penetrate through the pressing base and are fixedly provided with blocking pieces; a pressing rod is fixedly installed in the center of the upper portion of the pressing base through a fixing disc, a spring is arranged at the position, between the pressing base and the profiling die holder, of the outer portion of the guide column in a sleeving mode, a side punching structure is arranged on one side of the base and comprises a sliding plate and a sliding groove, and the sliding plate is slidably connected to one side of the upper portion of the base. According to the hard disk shell machining device, the hard disk shell is perforated in the profiling process, the effect of simultaneous profiling ...

Mineral substance type salt for dairy cattle and manufacturing method thereof

A mineral salt for dairy cattle is characterized in that the main component of the salt includes sodium chloride, organic chrome, mineral salt, nonprotein nitrogen, flavouring agent and jointing compound. A manufacturing method of the mineral salt includes: (1) weighing; (2) pretreating the materials; (3) mixing and stirring; (4) feeding mold; (5) pressing to form; (6) storing; (7) checking product; (8) packaging, namely finished product. The invention has the advantages of : (1) abundant nutrition, having the remarkable effects of improving the immunity and increasing milk and being able to complement the insufficiency of the protein supplied in the feed, good taste; (2) scientifically and reasonably selection on the adding mode of each component of the mineral and microelement; (3) easy material acquirement and low manufacture cost; (4) effectively improving the uniformity of the material mixing and shortening the mixing time by the measures of pretreating and mixing, not exceeding 5 ...

Method of quickly obtaining transgenic cotton plant

A method for quickly obtaining transgenic cotton plant includes such steps as improving MSB5 culture medium by adding VB1, VB6, nicotinic acid and auximone, culturing the hypocotyl dissection of aseptic cotton, and direct induction. Its advantages are simple and feasible method and high transgenic efficiency (60-70%).

Method for large-scale inducing plant gene mutation

The present invention belongs to the field of plant gene engineering technology. It is characterized by that it utilzies agrobacterium mediated conversion method to introduce the artificially-constructed transposon label, i.e. enhancer net and transposition activatino label into plant, specially into the cultivated terrestrial cotton genome, and utilizes the random transposition of transposon andrandom induced gene mutation mechanism to find functional gene on a large scale and create a plant transposon label mutation gene bank containing lots of mutant genes including fixed and non-fixed transposons. Said mutation bank material can further find new functional gene of said crop by means of continuously planting, and the any mutant gene of the mutation bank can be cloned by adopting transposon label method.

Method of quickly obtaining transgenic cotton plant

Cloth-free bean curd compression molding device and method

The device comprises a top pressing disc, a bean curd pressing forming basket, a bottom tray and an uncongealed bean curd falling pipe, the top pressing disc is arranged above the bean curd pressing forming basket, the bottom tray is arranged below the bean curd pressing forming basket, and the uncongealed bean curd falling pipe is arranged below the top pressing disc. A first connecting plate and a second connecting plate are symmetrically installed on one side of the front portion and one side of the rear portion of the bean curd pressing forming basket, and a third connecting plate is fixedly installed on the top between the first connecting plate and the second connecting plate. A first top uncongealed beancurd falling and draining cover and a second top uncongealed beancurd falling and draining cover are respectively mounted at the center positions of the front part and the rear part of the upper part of the beancurd pressing and forming basket. According to the wrapping-cloth-free ...

Method for cultivating anti-crack jujubes

The invention relates to a method for cultivating anti-crack jujubes, comprising the following steps: (1) building a cutting orchard, expanding cion reproduction, and grafting a jujube No.1 anti-crack or newly-planted sapling on the original jujube tree; (2) applying an organic fertilizer in a jujube garden in autumn to improve the nutritional level of trees, enhance the tree vigour and keep that the single plant of tree has one-time nutrition adsorption area; (3) balancing soil and tree moisture, and keeping the relative water content of soil to 60% from the non-mature period to the mature period; (4) trimming the trees, keeping trees ventilated and diaphanous, preventing the trees from closing, mainly taking 1-4-year branch fruits at the fruit hanging rate of 0.5, keeping the kernel of a jujube head, and avoiding from girdling or ringing to delay the jujube fruit maturing period; and (5) putting bees during the flowering phase in the jujube period to improve the resistance, the quality ...

Method for protecting sub-path when single link is fault in a WDM network

A sub-path protection method of a single link fault in a wavelength division multiplex network belongs to the technical field of optical networking communication. The method comprises the following steps: (1) searching a path satisfying protection switching time restriction for each node pair as a working path in a network topology; and then searching a protective path satisfying protection switching time restriction and link separation for each working path; (2) mapping the network topology into a virtual topology; and (3) searching a virtual path for a reached service; and then searching a working path and a protective path with minimum resource consumption in each virtual link of the virtual path. The sub-path protection mechanism has the advantages of protection of resource sharing and protection of switching time restriction so as to improve resource utilization, reduce blockage rate, and effectively reduce networking time consumption, namely, the use times of the shortest path searching ...

Outdoor large-area cultivating method for Isochrysis galbana H29 containing rich DHA

Protection method dividing management region in optical network

A method for protecting the management area division in the optical-fiber network, which belongs to the technical field of optical-fiber network communication and comprises the following steps: (1) initializing the given single-domain physical topology; (2) creating different subordinate virtual topologies according to different protection modes, all single-domain virtual topologies being connected through boundary nodes so as to form a multi-domain virtual topology; (3) searching the path on a virtual topological diagram through a path selecting function when the business request arrives; and searching virtual routings among the virtual lodging node pairs in multiple domains, when source lodging nodes are not in a same domain. The invention not only can abstract the multi-domain optical-fiber network into virtual topological diagram for solving the problem of cross-domain routing, but also considers the divisional special protection, sharing protection, and non protection in different ...

Distribution network system insulation fault on-line monitoring system based on data analysis

The invention discloses a distribution network system insulation fault on-line monitoring system based on data analysis, which relates to the technical field of distribution network fault monitoring and comprises an insulation resistance measuring module, a self-checking module, a data processing module, an alarm module and a remote communication module. When the insulation resistance of all cables in the distribution network system is measured in real time through the insulation resistance measurement module, the self-checking module acquires parameters related to the measurement precision of the insulation resistance measurement module at regular time, establishes a precision coefficient through the parameters, and judges the operation state of the insulation resistance measurement module according to a comparison result of the precision coefficient and a precision threshold value. In the operation process, the system has a self-checking function, so that an alarm prompt can be given ...

Construction process of multi-span integrally-prefabricated capping-beam-free pile-slab bridge

The invention discloses a construction process of a multi-span integral prefabricated capping-beam-free pile slab bridge, which comprises the following steps: (1) a pi-shaped prefabricated beam is prefabricated, the pi-shaped prefabricated beam is of an integral prefabricated structure and comprises a top plate, at least three main beams and beam ribs, the main beams and the beam ribs are positioned on the bottom surface of the top plate, and each main beam corresponds to stand columns arranged in rows; (2) the stand columns are installed according to the design scheme, (3) the pi-shaped precast beams are conveyed to a construction site and hoisted in place, structural joints are formed between the adjacent pi-shaped precast beams arranged in the longitudinal direction of the bridge, and the structural joints are arranged in the longitudinal direction of the bridge. Then concrete longitudinal wet joints are poured between the adjacent pi-shaped precast beams arranged in the transverse direction ...

Method for protecting sub-path when single link is fault in a WDM network

A sub-path protection method of a single link fault in a wavelength division multiplex network belongs to the technical field of optical networking communication. The method comprises the following steps: (1) searching a path satisfying protection switching time restriction for each node pair as a working path in a network topology; and then searching a protective path satisfying protection switching time restriction and link separation for each working path; (2) mapping the network topology into a virtual topology; and (3) searching a virtual path for a reached service; and then searching a working path and a protective path with minimum resource consumption in each virtual link of the virtual path. The sub-path protection mechanism has the advantages of protection of resource sharing and protection of switching time restriction so as to improve resource utilization, reduce blockage rate, and effectively reduce networking time consumption, namely, the use times of the shortest path searching ...

Multi-failure protection method for multiple service levels in WDM network

The invention relates to a protection method with a plurality of service grades for multiple faults in WDM networks, pertaining to the technical field of optical network communication. The method comprises the steps as follows: step one: connections of different grades are established for service requests arrived, that is, working accesses and accesses for protection are established; step two: for service connections conveying data in the networks, when failed links occur, the service grade is judged, different protection methods are executed to services of different grades, and enhanced recovery is executed to the service of the highest grade. The method of the invention meets the requirements for different protections raised by users in case of multilink faults in the WDM optical networks. EDSP takes into consideration of an enhanced recovery mechanism for load balancing, protection of resource sharing and resource recycling, so as to improve resource utilization rate and reduce blocking ...

Method for reducing false alarm of bleed-out alarm system to cut blank

The invention relates to a method for reducing false alarm cutting blanks of a breakout alarm system, and belongs to the technical field of continuous casting methods in the metallurgical industry. According to the technical scheme, the position of a casting blank bonding point in a crystallizer is determined according to the point position of an alarm thermocouple, and a pulling speed change curve in the speed reduction process of the continuous casting machine is dynamically set according to the position of the casting blank bonding point and the distance between the casting blank bonding point and a lower opening of the crystallizer. And the healing condition of the bonding point is judged according to the change condition of the thermocouple temperature curve, and the pulling speed of the continuous casting machine is correspondingly recovered. The method has the beneficial effects that the pulling speed change of the continuous casting machine after the crystallizer expert system gives ...

Random forest integration method based on feature mapping layer and enhancement layer structures