30results about How to "Reduce positioning" patented technology

The invention provides an adsorption module and a motion system, and relates to the technical field of precision equipment. The adsorption module comprises an adsorption substrate, a rotating base, a rotating shaft module, a wafer bearing table and a suction cup. The rotating base is fixedly connected with the adsorption substrate, and the rotating shaft module can rotate relative to the rotating base; the rotating shaft module can move in the axial direction of the rotating shaft module relative to the rotating base; the rotating shaft module is configured to be connected with the suction cup or the rotating base in an air pressure connection mode. The wafer bearing table is configured to be capable of adsorbing the suction cup or supporting the suction cup in an air floatation mode.

The embodiment of the invention provides an article recommendation method and device, electronic equipment and a storage medium, and belongs to the technical field of computers. The method comprises the following steps: inputting a plurality of pieces of obtained historical interaction information into a pre-trained word segmentation device, and encoding each piece of historical interaction information to obtain a corresponding encoding feature; calculating the similarity between the coding feature and a plurality of preset codebook vectors to obtain a similarity score, and determining a mapping codeword corresponding to the coding feature based on the similarity score; decoding the mapping code word, determining code word information of the corresponding article according to a decoded result, and determining prefix information corresponding to the code word information; determining an article identifier corresponding to each article according to the code word information and the prefix information; and based on the similarity score, selecting a target identifier from the plurality of article identifiers, and determining an article corresponding to the target identifier as a target recommended article. According to the invention, the item recommendation efficiency can be improved.

The invention relates to the technical field of precision casting, in particular to a method for controlling the wall thickness of a wax mold of a complex hollow single crystal turbine blade and the wax mold. According to the method, ceramic cores are screened by obtaining the profile size of the sections, corresponding to the wall thickness points of the wax mold, of the ceramic cores; then, positioning bosses are matched with positioning holes, the screened ceramic mold cores are placed in a wax mold for positioning, wax is injected into the wax mold, and a blade wax mold is manufactured; detecting the wall thickness of a blade wax mold and the wall thickness of a corresponding casting, and obtaining a wall thickness change value; and finally, according to the wall thickness change value, the maximum value and the minimum value of the wall thickness of each detection point of the wax mold are obtained, so that the wall thickness of the wax mold produced subsequently is accurately controlled, the casting wall thickness out-of-tolerance caused by improper wax mold wall thickness control requirements is avoided, and the casting wall thickness qualification rate is increased. The problem that in the prior art, due to shrinkage of a ceramic core, the wall thickness of a wax mold of the single-crystal turbine working blade cannot meet the process requirement is solved.

The application discloses a Φ-OTDR and MZ-Sagnac fusion system XPM crosstalk suppression method based on single-pulse period local symmetry pairing, and is suitable for a single-fiber composite sensing system which integrates a Φ-OTDR module and a MZ-Sagnac interference module in the same sensing optical fiber through a wavelength division multiplexing mode. The method of the application obtains a pulse trigger signal and an interference output signal of the Φ-OTDR, synchronously segments the interference output signal according to a pulse repetition period, determines a local time window and a center position of the local time window affected by XPM crosstalk in each single-pulse period, then performs a weighted pairing operation on equidistant sampling points on both sides of the center, obtains a local recovery signal and an XPM crosstalk estimation component, and corrects a contaminated signal by using the local recovery signal, so as to realize XPM crosstalk suppression, improve the phase demodulation precision, disturbance positioning ability and event identification reliability of the composite sensing system.

The utility model relates to a connecting support and a connecting system. The connecting support comprises a first connecting piece and a second connecting piece which are buckled with each other and are the same in structure. Each of the first connecting piece and the second connecting piece comprises a body, the body is provided with two oppositely arranged first side edges and two oppositely arranged second side edges, a rib plate is arranged on one side of the body, and the two sides of the rib plate are bent towards the first side edges respectively to form a first connecting part and a second connecting part which abut against the body; the rib plate is provided with at least one clamping groove. At least one buckling piece is arranged on the other side of the body; when the first connecting piece and the second connecting piece are buckled, the buckling piece of the first connecting piece is connected with the clamping groove of the second connecting piece in a clamped mode, and the buckling piece of the second connecting piece is connected with the clamping groove of the first connecting piece in a clamped mode. According to the utility model, two switches can be connected in parallel by only adopting one part, so that the risks of neglected installation and wrong installation are reduced.

The utility model provides a battery shell and a single battery, and the battery shell comprises a bottom shell with an opening end; the cover plate is mounted at the opening end of the bottom shell; one of the open end of the bottom shell and the contour edge of the cover plate is provided with a flanging structure, the other one is provided with an annular plate matched with the flanging structure, and the annular plate extends into the flanging structure and is in close fit with the flanging structure. The annular plate extends into a clamping or inserting assembly structure in the turning plate structure, so that the structural stability of the assembly of the bottom shell and the cover plate can be improved, the step of positioning the bottom shell and the cover plate in the welding process to prevent dislocation can be omitted, and the assembly precision of the cover plate and the bottom shell and the precision of the welded battery shell can be improved; and before welding, the flanging structure can be extruded to enable the annular plate to be fully attached to the flanging structure, so that the possibility of pseudo soldering can be effectively reduced, and the sealing performance of the bottom shell and cover plate connecting structure is improved.

The application discloses a kind of based on ultraviolet gluing quasi-monolithic compact interferometer and its building method, it is related to optical element and high-precision laser ranging field, including: the collimator of optical fiber in Mach-Zehnder interferometer and glass mounting seat ultraviolet gluing connection constitute the bottom flat integrated collimator, and integrated collimator and the target position ultraviolet gluing connection of glass base in Mach-Zehnder interferometer;It also includes: for adjusting the position of depolarization beamsplitter and 45 degree mirror in Mach-Zehnder interferometer adjusting support;Adjusting support includes support device for supporting adjusting part, adjusting part includes: six-dimensional optical adjusting frame, it includes: upper layer board;Lower layer board, between upper layer board and lower layer board by multiple screw nails of circumferential surrounding screw connection;Rotary ring is arranged at the bottom of lower layer board;Metal cylindrical connecting rod is fixedly arranged at the bottom of rotary ring.The application can build high stability high-precision quasi-monolithic compact interferometer.

The invention relates to the field of machine vision, and provides a corrosion diagnosis method, device and equipment based on machine vision, and the method comprises the steps: obtaining an input image, and carrying out the preprocessing of the image; selecting an initial contour in the preprocessed image as an initial range of a corrosion area; defining a level set function according to the initial contour; iteratively updating the level set function based on the selected energy functional model; after iterative optimization is completed, a final contour is extracted as a segmentation result, and a final corrosion area is obtained; and performing corrosion diagnosis according to the final corrosion area to obtain a corrosion report. According to the invention, the problem of poor accuracy of the traditional machine vision technology in corrosion diagnosis in the prior art is solved, and high-accuracy judgment of the corrosion image is realized.

The invention discloses a machining positioning device and a machining system for a brake caliper casting. The device comprises a clamp body. Vertical plates are respectively arranged at the front and rear ends of the top of the clamp body; a compression screw and a compression limiting nail are arranged at the upper parts of the left ends of the two vertical plates in a penetrating manner respectively; the opposite ends of the compression screw and the compression limiting nail are respectively provided with a pressure plate; the upper portions of the right ends of the two vertical plates are each provided with a set screw in a penetrating mode. Third studs are arranged in the middles of the front and rear ends of the clamp body. The upper parts of the two third studs are connected with the front and rear ends of the pressing plate; a V-shaped block and a limiting block are arranged at the left and right ends of the top of the clamp body respectively. The front end and the rear end of the clamp body are each provided with a supporting base. A first adjustable supporting part is arranged at the upper part of each supporting seat. The brake caliper casting can be positioned by taking the main shaft hole as a reference, the positioning precision is ensured, the processing operation of the upper surface of the caliper arm and the contact vertical surface of the brake rail is facilitated, and the processing quality is ensured.

The invention relates to the technical field of photo film covering, and discloses an automatic photo picture film covering device which comprises a first fixing frame, a quick dismounting assembly, a connecting assembly, a film covering roller, a guiding assembly and a conveying assembly. The quick dismounting assembly comprises a fixing rod, a sliding block, a bidirectional lead screw, a forward and reverse motor, a connecting block and a limiting block; and a first groove is formed in the fixing rod, the connecting assembly comprises a lower film roller mounting base, an upper film roller mounting base and an inserting block, and a first limiting hole is formed in the inserting block. By arranging the quick dismounting assembly, the connecting assembly and other structures, when a new film roll or film rolls with different visual effects need to be replaced, the film roll can be quickly replaced, an operator does not need to find a tool or dismount multiple sets of bolt structures with the help of the tool in the process, the non-value-added time in the production process is shortened in the process, and the production efficiency is improved. Furthermore, the film laminating efficiency is improved, and the mounting coaxiality and stability of the film laminating roller can be ensured.

This utility model discloses a micro / nano bubble generator for wastewater treatment, relating to the field of water pollution control technology. It includes a housing, a pull rod, and a ceramic perforated plate. The pull rod is disposed on the side of the housing, and a groove is formed in the side wall of the housing. A square block is disposed in the groove. In this utility model, the insertion holes on both sides of the ceramic perforated plate are adapted to the extended ends of the square blocks. The insertion rod is inserted into the insertion holes for initial fixation. A tension spring between the housing and the square blocks provides elastic tension. An elliptical elastic ring, in conjunction with a reset component, forms a buffer. When there is gas-liquid impact or pressure fluctuation, the tension spring extends and retracts to buffer, the elastic ring retracts and resets, and the insertion rod slides to maintain a stable connection between the ceramic perforated plate and the housing, ensuring the normal generation of micro / nano bubbles. The above structure enhances the connection stability between the internal components and the housing, resists impact and pressure fluctuations, and reduces component displacement, vibration, or loosening.

This application discloses a method, apparatus, equipment, and medium for industrial drawing recognition and error correction, relating to the field of drawing recognition technology. The method includes: acquiring and preprocessing industrial drawings; performing recognition and extraction based on the drawing data to generate a structured candidate set; calculating the alignment between the recognition coordinates and the coordinates of the drawing tool object based on anchor point features to obtain alignment parameters, errors, and confidence levels; performing quality verification based on the confidence level and errors to obtain compliant alignment parameters; mapping the structured candidate set to coordinates based on the compliant alignment parameters to obtain the positioning target; controlling the drawing tool to perform positioning and measurement to generate deterministic evidence objects; constructing a binding relationship graph and performing consistency constraint detection; executing a minimum-cost action sequence when errors occur to complete closed-loop error correction; and encapsulating the results to obtain structured results, evidence chains, and replayable data. This method can achieve highly reliable closed-loop error correction of drawing recognition results.

The utility model discloses a landfill cover plate hoisting device, which belongs to the technical field of landfill equipment in the environmental protection industry and comprises a supporting mechanism and a hoisting mechanism, and the hoisting mechanism is rotatably arranged on the supporting mechanism and has a first direction and a second direction. The driving source is used for being detachably connected with the cover plate; the cover plate is provided with a first position and a second position relative to the supporting mechanism, the cover plate of the hoisting mechanism in the first direction is located at the first position, and the cover plate is flush with the supporting mechanism; and the hoisting mechanism located in the first direction rotates to the second direction, the driving source drives the cover plate to rotate from the first position to the second position, and the cover plate is aligned to and covers a landfill unit of a landfill site. Through cooperation of the supporting mechanism and the hoisting mechanism and precise control of the position of the cover plate by the driving source, the defect that the angle of the cover plate is manually adjusted in the prior art is overcome.

The application discloses an electromagnetic point reading pen positioning method based on image recognition, and comprises the following steps: S1, collecting a textbook page image, combining an improved SuperPoint model and a time sequence processing unit to complete feature extraction, alignment, difference calculation and learnable parameter optimization of a key point set and a descriptor vector; S2, generating a layout template; S3, extracting and screening the key point set to generate current frame feature data containing two-dimensional coordinates, confidence and a normalized descriptor; S4, generating visual registration parameters; S5, combining the visual registration result to compare and update initial electromagnetic prior registration parameters, and outputting effective registration parameters of a current operation cycle; and S6, generating a positioning coordinate sequence and updating visual registration prior parameters. The application can realize high-precision and low-drift page positioning under different paper materials, illumination conditions and long-time use conditions, and is suitable for intelligent point reading, interactive teaching and high-precision paper surface interaction scenes.

Various embodiments relate to a next-generation wireless communication system for supporting a higher data transmission rate and the like than a 4th generation (4G) wireless communication system. According to various embodiments, a method for transmitting and receiving a signal in a wireless communication system and an apparatus supporting same may be provided, and other various embodiments may be provided.

Embodiments of the present disclosure relate to the field of battery technologies and disclose a cell winding device and method. The cell winding device includes a first cutting unit, a first connection unit, a winding unit, and a second cutting unit. The first cutting unit is configured to perform cutting on an electrode sheet. The first connection unit is adjacent to the first cutting unit, and configured to connect, through a connection tape, adjacent electrode sheets that have been subject to the cutting. The winding unit is configured to perform winding on the adjacent electrode sheets connected through the connection tape and drive, in response to completion of the winding, the electrode sheets that are wound to move, in such a manner that the connection tape corresponds to the second cutting unit. The second cutting unit is configured to perform cutting on the connection tape. With the above scheme, a winding efficiency for a battery cell is improved according to the embodiments of the present disclosure.

The invention relates to the technical field of pure electric commercial vehicle chassis, and particularly discloses a pure electric commercial vehicle cabin modular arrangement method, which comprises the following steps: S1, defining a single-layer tiled arrangement principle, and mounting chassis accessories on a vehicle chassis frame; s2, defining a high-pressure interface and a low-pressure interface of the controller by adopting a high-low pressure separation principle; s3, defining an interface standardization principle, and performing integrated management on a low-voltage wire harness and a brake pipeline interface; s4, a cabin module integral split charging scheme is adopted for installation; high integration and modularization of cabin module accessories and interfaces are achieved, it is guaranteed that a controller and the accessories are not shielded up and down, meanwhile, cab assembly positioning is reduced, the cab internal space is increased, the modularization degree of a vehicle is improved, connector varieties are reduced, the reliability of the whole vehicle is improved, and offline split charging of the cabin module is achieved; according to the scheme, the process scheme that all current parts of a new energy vehicle model are independently assembled is broken through, and the whole vehicle assembling efficiency is improved.

The invention relates to the technical field of export motorcycle encasement, in particular to an encasement structure suitable for a motorcycle export container. Comprising a packaging box frame, a first tray, two second trays, a third tray, a front fork connecting support, a decomposed product containing box, two side connecting fixers, a main supporting positioner, a front connector and a rear connector, and reinforcing rods are arranged on the two sides of the packaging box frame. The size of the motorcycle body is reduced as much as possible, and positioning, fastening and packaging size reduction in the packaging box in the later period are facilitated; and secondly, reasonable positioning and fastening modes are adopted in the packaging box frame with the reduced size, accurate space positions and protection spaces of all components are guaranteed, reliable packaging and transportation quality is achieved, and therefore the number of packaged commodities in a container is increased, and the purposes of reducing cost and improving efficiency are achieved.

The utility model discloses an assembling device of an electronic product production line, which comprises a first positioning assembly, a second positioning assembly and a third positioning assembly, the first positioning assembly is provided with a first positioning part, and the first positioning part is used for positioning a glass piece provided with a flat cable; and the first manipulator is provided with a tail end execution part, the tail end execution part is used for positioning the protective cover, and the first manipulator is used for moving the protective cover to the connecting flat cable. According to the utility model, the protective cover is transferred by using the first manipulator, so that the manual operation is reduced, the error is reduced, the fixing precision is improved, the condition of poor assembly is improved, the positioning and fixing time of a flat cable and the protective cover is reduced, the production efficiency is improved, and the cost is reduced.

The utility model relates to the technical field of automobile modification, specifically relates to a novel side -mounted tail board, including big board, small board, frame, lifting cylinder, two power bars and lifting arm, big board is connected with small board, is located big board's one side, every power bar's one end is connected with big board, every power bar's other end is connected with frame, lifting arm's one end is connected with big board, lifting arm's other end is connected with frame, lifting cylinder's one end is connected with lifting arm, lifting cylinder's other end is connected with frame, adopts above -mentioned mode, has realized the loading and unloading of vehicle goods with convenience, has improved production efficiency, can adapt to the demand of the increasingly complex market.

The invention relates to a floating platform for harnessing wind energy, comprising a tower (1) with a wind turbine (2) and two identical horizontal cylindrical floating elements (3) parallel to the main longitudinal alignment axis, the tower and the floating elements being connected to each other by bars (5). The floating elements are connected to a stabilizing element (4) located directly below the floating elements (3), said stabilizing element comprising two first substantially rectangular, solid or lighter, ribbed concrete slabs (4a) arranged perpendicular to the axes of the floating bodies and connected to said floating bodies by means of auxiliary structures.

A battery housing (10) includes an integrally formed plate body (110), the plate body is in a preset shape in an unfolded state, and is provided with multiple preset folding portions, and the plate body is separated to form a cover plate and multiple side plates along the multiple folding portions. The multiple side plates are configured to be folded along the corresponding folding portions and connected to form a middle housing (1101) with closed peripheral sides and open ends, and the cover plate is configured to be folded along the preset folding portion and close the corresponding open end (1102) of the middle housing to form an accommodating space for accommodating an electrochemical unit (20) inside the middle housing.

The present invention provides an air intake enthalpy increasing component, a compressor and a refrigeration device. The air intake enthalpy increasing component includes an upper cover, a through hole is provided on the upper cover, and a receiving cavity is provided on one side of the upper cover; an air intake pipe, the air intake end of the air intake pipe passes through the through hole and extends out of the receiving cavity; the air intake enthalpy increasing component also includes an enthalpy increasing outer pipe, the enthalpy increasing outer pipe is sleeved outside the air intake pipe, the enthalpy increasing outer pipe is installed in the through hole, and an enthalpy increasing channel is formed between the inner peripheral wall of the enthalpy increasing outer pipe and the outer peripheral wall of the air intake pipe; an enthalpy increasing inlet and an enthalpy increasing outlet are provided on the peripheral wall of the enthalpy increasing outer pipe, and the enthalpy increasing inlet and the enthalpy increasing outlet are both connected to the enthalpy increasing channel, the enthalpy increasing inlet is located outside the receiving cavity, and the enthalpy increasing outlet is located inside the receiving cavity. The air intake enthalpy increasing component can reduce the positioning between the static scroll and the shell, increase the radial flexibility of the static scroll, and reduce the vibration transmitted to the shell by the air intake pipe.

The utility model discloses a probe pre-positioning locking device in the related technical field of chip testing, which comprises a main substrate and a guide rail arranged above the main substrate, the side edge of the guide rail is provided with a test probe plate main body, one side of the test probe plate main body far away from the guide rail is provided with a test probe plate positioning block, and the test probe plate positioning block is provided with a probe plate. A test needle plate base body is arranged on the side, away from the test needle plate body, of the test needle plate positioning block, and a sliding block is fixedly arranged below the test needle plate base body. According to the testing device provided by the utility model, a matching structure of the sliding rail and the sliding block is arranged between the testing needle plate substrate and the substrate main body, and the accurate boundary dimension of the sliding block is used as the pre-positioning of the testing needle positioning block, so that the testing needle plate substrate has good installation precision, and the reinstallation position is not changed after the testing needle plate substrate is disassembled, replaced and maintained; the installation precision and stability of the test needle plate substrate are effectively ensured, the positioning and calibration time is saved, and the detection efficiency is improved.

The noise reduction device comprises a base, the top of the base is fixedly connected with an assembly frame, the top of the assembly frame is in threaded connection with a noise reduction barrel, the inner side wall of the noise reduction barrel is fixedly connected with a micropore net plate in an embedded mode, and the inner wall, corresponding to the micropore net plate, of the noise reduction barrel is provided with a material cavity. A sound absorption plate is fixedly connected to the inner wall of the material cavity, sound absorption cotton is arranged between the micropore net plate and the sound absorption plate, and an adapter plate is arranged at the position, close to the bottom, of the inner wall of the micropore net plate. The silencing tube, the silencing tube, the sound-absorbing cotton, the short sound-absorbing sponge ring and the sound-absorbing plate are matched with one another, the silencing tube and the multiple layers of sound-absorbing materials are arranged at the joint of the high-pressure air gun and the pipe cavity instrument, noise generated during high-pressure air inlet can be weakened conveniently, meanwhile, the silencing tube is arranged at the tail end of the pipe cavity instrument, and the silencing tube is arranged at the tail end of the pipe cavity instrument. Not only can the lumen instrument be conveniently positioned, but also noise generated during drainage and exhaust of the lumen instrument can be weakened to a certain extent.

This invention discloses a data prefetching method, product, device, and medium based on multiple memory access patterns, relating to the field of computer architecture technology. The method includes: monitoring for L2 cache memory access miss events in the processor; if the miss status register hits the event, splitting the miss address to obtain the base address of the spatial region and the offset address within the region. When the program counter pattern training table hits the base address, stride and spatiotemporal pattern training is performed on the offset address to obtain a fixed stride, space / time related access pattern. Valid memory access patterns are filtered by confidence level and stored in the corresponding LLC pattern table, with an index recorded in the prefetch pattern record table. Subsequently, based on the memory access miss event and index information, the target pattern is read from the corresponding pattern table to calculate the prefetch address, generate a request, and execute the prefetch. Through this scheme, it is possible to adapt to multiple scenarios and accurately identify memory access patterns for more precise data prefetching.

The application belongs to the technical field of steel structure construction application, and particularly relates to a building energy-dissipation buckling restrained brace installation device and an implementation method thereof. The setting of the walking wheels facilitates the movement of the whole device, the setting of the lifting structure not only saves the occupied space, but also facilitates the construction of steel structures with different heights, and the setting of the beam flange clamp realizes accurate positioning, so that the building energy-dissipation buckling restrained brace installation device provided by the application has the following advantages compared with the prior art: 1. firm connection, high degree of mechanization and good safety; 2. fast construction speed, saved construction period and cost; 3. simple equipment use, convenient operation, saved labor cost compared with the traditional mode; 4. accurate positioning, compared with the traditional mode, the device can be directly welded after being lifted without position correction; 5. small equipment occupied space, which does not affect the surrounding construction.

This invention discloses an AI-based traffic anomaly event recognition method based on a high-altitude perspective of unmanned aerial vehicles (UAVs), specifically in the field of traffic management. It addresses the challenge of identifying anomalies caused by parallax distortion in high-speed cruising scenarios by optimizing parallax distortion through continuous frame motion intensity baseline-driven flight control and zoom coordination; stabilizing target contours using a dynamic imaging window; constructing a sparse confidence kernel to analyze multi-dimensional motion; adaptively filtering low-quality candidates and refining anomaly coordinates; dynamically adjusting flight attitude and framing parameters according to the weight of anomaly-dense areas to achieve both high-altitude wide-angle coverage and fine-grained single-vehicle monitoring; eliminating parallax artifacts through confidence analysis; generating coordinates after anomaly candidate verification and driving flight control fine-tuning; and collaboratively compressing sensor bandwidth and improving alarm confidence across processing links to shorten the decision chain latency of detection, location, and tracking. This ensures coordinate accuracy and timely delivery under complex lighting and severe parallax conditions, providing reliable intelligent perception capabilities for traffic management.

The utility model discloses a mouse, which is characterized in that a first shaft body of a mouse roller is connected to a grating encoder, a second shaft body is positioned through a positioning piece, and the grating encoder and the positioning piece can jointly limit the left-right offset of the mouse roller along the axial direction so as to realize the centered positioning of the mouse roller. Compared with the prior art, only one positioning piece needs to be arranged, so that the internal structure of the mouse can be simplified; besides, even if the positioning pieces influence the rotation of the second shaft body due to factors such as machining process precision and later aging deformation, compared with two positioning pieces, the friction positions of the rotating shaft are fewer, so that the influence of the positioning pieces is smaller, the rotation stability of the mouse roller can be ensured, and the service life of the mouse is effectively prolonged.

The invention relates to the technical field of optical cables, in particular to a sensing optical cable used in deep water and a preparation method. Comprising an embedded fiber grating pressure sensor; a loose tube layer; an inner sheath layer; an inner armor layer; an outer sheath layer and an oleophylic cracking layer; an outer armor layer; a corrosion-resistant water-blocking oil-permeable layer; wherein the oleophylic cracking layer is made of oleophylic cracking materials and wraps the outer sheath, the thickness of the oleophylic cracking layer is 0.5-0.6 mm, the corrosion-resistant water-blocking oil-permeable layer is made of corrosion-resistant water-blocking oil-permeable materials and wraps the outer armor layer, and the thickness of the corrosion-resistant water-blocking oil-permeable layer is 0.6-0.8 mm. When the sensing optical cable used in deep water is applied to an oil delivery pipe of oil drilling, the oil leakage condition and oil leakage points of the oil delivery pipe can be monitored stably and rapidly under the condition that interference of external factors is avoided, and the sensing optical cable has excellent seawater corrosion resistance and deep water pressure resistance.