1090 results about "Tendon" patented technology

The disclosure presents a humanoid robot with an upper region (head, torso, arms with forearm assemblies, end effectors), lower region (legs), and connecting central region. Each end effector features index, middle, ring, little finger, and thumb assemblies attached to a housing of said end effector. The housing includes interior wall extents creating spaces for tendon routing, where the first distance between first and second wall extents is less than 45% of the second distance between third and fourth wall extents. Tendons controlling finger movements pass between these wall extents. The robot incorporates a wrist assembly connecting the housing of the end effector to the forearm, actuators housed in the forearm that control the tendons, and a carpal tunnel-like structure that guides tendons from forearm to base of the housing, enabling precise hand movements without requiring actuators in the hand itself.

The invention discloses a nonlinear beam unit analysis method considering prestressed tendon bonding slippage, which comprises the following steps: establishing an overall structure analysis model according to the geometric dimension of a prestressed concrete beam, dividing calculation units, and assembling unit stiffness matrixes into a structural overall stiffness matrix; applying load and boundary conditions to the overall structure analysis model, and solving the overall analysis model by adopting a Newton iteration method; and extracting calculation results of structural deformation, stress, section internal force, prestressed tendon relative slippage and the like, drawing a load-deformation curve, and calculating structural rigidity and bearing capacity according to the slope and peak value of the curve. The calculation unit provided by the invention is an 8-degree-of-freedom beam unit, not only is the stress characteristic of the beam structure considered, but also the bond slip characteristic of the prestressed tendon is considered, the problem that a traditional beam unit analysis model cannot consider the bond slip effect of the prestressed tendon is solved, and compared with an entity unit analysis model, the convergence is better, and the calculation efficiency is higher.

A manipulation device includes an appendage extending from a base, the appendage comprising a flexible material having a resting pose and adapted to be deformed into a plurality of different poses, and at least one tendon attached to an end of the appendage and passing through the base or a portion of the appendage between the base and the distal end, such that actuation of the at least one tendon causes deformation of the appendage from the resting pose to a new pose. Systems and methods for fabricating and optimizing a manipulation device are also provided.

The invention discloses an endoscope transparent cap which comprises a rotatable mechanism, a sliding sleeve, a guide pipe arranged on the outer wall of an endoscope and a driving component arranged at the near end of the endoscope. In the rotatable mechanism, an endoscope joint is provided with a first opening, a rotating cap body of a rotating cap is provided with a second opening, and a flexible net basket is arranged outside the rotating cap body and faces the second opening; the endoscope connector sleeves the far end of an endoscope, the rotating cap body rotatably sleeves the endoscope connector, the sliding sleeve sleeves the rotatable mechanism, the flexible mesh basket is compressed in the sliding sleeve, the sliding sleeve and the rotating cap body are connected with the driving component through the first driving tendon and the second driving tendon respectively, and part of the driving tendons penetrate through the guide pipe; the driving component can drive the sliding sleeve to move towards the near end through the first driving tendon so as to expose the flexible net basket, and can drive the rotating cap body to rotate through the second driving tendon so that the second opening can be communicated with the first opening or the endoscope connector can shield the second opening. When the transparent cap for the endoscope is applied, polyps can be stored, so that the polyps can be taken out simply and conveniently, and the efficiency and the operation safety are relatively high.

The invention discloses tendon rope transmission system performance integrated testing equipment and a transmission system testing method, and belongs to the technical field of robot part testing. The equipment comprises a rack and a performance testing device, wherein the performance testing device comprises a mounting plate provided with an arc-shaped guide rail chute, a core shaft used for simulating a bending radius, a position adjusting mechanism used for accurately positioning the core shaft and clamping a tendon rope jacket, at least one linear driving mechanism capable of adjusting an angle along the chute, and a counterweight mechanism. A clamp of the linear driving mechanism clamps one end of an inner core of the tendon rope, the counterweight mechanism is connected with the other end of the inner core, the middle part of the tendon rope bypasses the mandrel, and the reciprocating motion applied by the linear driving mechanism is matched with the constant tension applied by the counterweight mechanism so as to simulate the working condition of the tendon rope under a specific bending radius and angle.

The utility model relates to an adjustable steering block device for reinforcing external prestressed tendons of a bridge. The adjustable steering block device comprises a hollow slab beam and a steering block device body arranged on the lower side of the hollow slab beam. The steering block device comprises a bottom plate and a screw supporting plate located below the bottom plate, at least one set of adjusting screws are arranged between the bottom plate and the screw supporting plate, each set comprises two vertically-arranged adjusting screws, a steering block is arranged between the two adjusting screws in the same set, the section of the steering block is semicircular, and the arc-shaped face of the steering block faces downwards. The adjusting screw rod is in threaded connection with an upper adjusting nut and a lower adjusting nut which are used for clamping the end of the steering block in a matched mode. According to the adjustable steering block device for reinforcing the external prestressed tendon of the bridge, the damage degree to the bridge is small, the construction efficiency is high, the steering block is detachably installed, consumables are few, the height of the steering block can be adjusted by matching the adjusting screw rod with the adjusting nut, and the use is convenient. The height of the steering block can be directly adjusted according to the condition of prestress relaxation to improve the prestress degree of the prestressed tendon.

The invention provides a tendon-rope-driven robot dexterous hand finger based on single drive and a method. The tendon-rope-driven robot dexterous hand finger comprises a finger shell; the tendon rope is provided with an end chuck and a middle chuck; the winch is provided with a winch clamping groove, the middle chuck is connected to the winch clamping groove, and after the tendon rope winds around the winch, the two ends of the tendon rope are led out of the two sides of the winch. The tendon rope guide module is provided with a guide clamping groove, after the tendon rope bypasses the tendon rope guide module, the end chuck is connected to the guide clamping groove, and the tendon rope guide module is used for guiding the transmission path of the tendon rope and changing the extension direction of the tendon rope; the driving module is used for driving the winch to rotate, and the winch has a forward rotation state and a reverse rotation state: when the winch rotates in the forward direction, the tendon rope drives the front part of the finger shell to bend; when the winch rotates reversely, the tendon rope drives the front part of the finger shell to straighten. Bending and straightening of the finger knuckles are bidirectionally driven by the tendon rope through the single driving module, and the finger is small in size, compact in structure, light in weight, low in cost and very suitable for a high-degree-of-freedom robot dexterous hand.

Described herein are rigidizing apparatuses (e.g., devices, system, etc.) and methods of using them that may rigidize over a long length of the device from a highly flexible and maneuverable configuration to a highly rigid configuration, while maintaining a relatively small diameter. In particular, described herein are apparatuses and methods including pressure-compression tendons that may be used in conjunction with a second rigidizing layer to enhance stiffness, particularly at the distal end region.

The invention discloses an under-actuated manipulator based on hybrid transmission of a gear and a tendon rope mechanism, and relates to the technical field of manipulators. One end of the middle connecting mechanism is provided with the floating platform under-actuated mechanism, and the other end of the middle connecting mechanism is provided with three identical finger mechanisms; the floating platform under-actuated mechanism comprises a tendon rope lifting device, a floating platform, a tendon rope winding wheel and a driving motor, a tendon rope penetrates through the lifting device to be connected with the floating platform and then reaches the finger mechanism, and synchronous control over the finger mechanism is achieved; the finger mechanism sequentially comprises a wrist joint, an MP joint and a near-end knuckle and is driven by a single motor to achieve rotary motion. The near-end knuckles are sequentially connected with the DIP joints, the middle knuckles, the PIP joints and the far-end knuckles in series, transmission is achieved through tendon ropes, flexible belts are installed on the inner sides of the near-end knuckles, and self-adaptive grabbing and gripping are achieved. Meanwhile, a torsional spring and a limiting device are arranged at a joint, so that resetting and self-locking functions are realized. The under-actuated manipulator is high in adaptive capacity, high in flexibility and good in stability.

Orthopedic implants and related surgical methods for using same. The implants have suture bore geometries that facilitate performance of the surgical methods, thereby providing for improved optimal biomechanical force application in various anatomies. The implants include suture bores that have an angled / diagonal, or skewed, orientation within the anatomical planes (lateral / sagittal and frontal / coronal). The suture bores have the skewed orientation so that the adjacent soft tissues (i.e., tendons or ligaments) can be advanced via the suture therethrough in superior-inferior and inferior-superior directions. Openings, or holes, at the ends of the suture bores are configured to approximate the adjacent associated soft tissue to the implant.

The invention belongs to the technical field of medical materials, and relates to a preparation method of an integrated gradual change type bionic gradient structure rotator cuff patch. The integrated gradual change type bionic gradient structure rotator cuff patch is prepared through the electric auxiliary solution blowing spinning technology and the heat treatment nanoimprint technology, the patch is of a composite layer structure, each transition layer and the adjacent micro-nano fiber membrane layer form a continuous fracture-free structure, the internal structure and component change are in uniform transition, discrete layering is avoided, and the patch has good application prospects. The whole patch is of a continuous gradual change type biological bionic gradient structure, histological gradient characteristics of a tendon-bone transition area are successfully simulated, and rapid healing of a tendon-bone interface can be effectively promoted.

Methods for creating high-density arrays of suture stiches through a tendon into bone for reattachment of a torn tendon, particularly a rotator cuff tendon. The method includes providing a pre-strung plurality of anchors, each anchor having at least one passage therethrough with a continuous length of suture slidably and serially threaded through the at least one passage of each anchor. Each of the anchors further includes a locking assembly for locking the suture within the individual anchor. A first anchor is implanted through the tendon and the suture is locked. A second anchor is implanted a selected close distance from the first anchor, then applying tension to the suture extending from the first anchor and passing through the second anchor the second anchor is locked to create a single suture tensioned and locked stitch between the first and second anchor. This process is repeated for each anchor in the array.

Multiple systems are described for repairing or replacing anatomic ligaments and tendons utilizing toothed straps and bony anchors incorporating rotatable discs that lock the straps in an axial fashion. Specialized instrumentation is used to prepare the bone and to insert the anchor into the bone while providing proper orientation of the locking disc for accepting the toothed strap.

The invention discloses a bionic rope-driven finger, which adopts single tendon rope drive to be matched with a movement coupling transmission rod, and solves the technical problems that the number of tendon ropes of the existing rope-driven finger is large, and multi-joint coordinated movement is difficult. The finger comprises a near-end knuckle, a middle knuckle and a far-end knuckle which are hinged in sequence, and the whole finger can be driven to bend through a tendon rope anchored to the far-end knuckle. The tendon rope is connected to the near-end knuckles and the far-end knuckles in a pivoted mode through the movement coupling transmission rods arranged on the spanning middle knuckles, and when the tendon rope pulls the far-end knuckles to bend, the movement coupling transmission rods mechanically transmit movement to the near-end knuckles, so that the two knuckles automatically form a coordinated bending proportion, and the natural movement mode of human fingers is simulated. The elastic restoring element provides stretching restoring force when the tendon rope is loosened, so that the fingers automatically return to the straightened state, and bidirectional movement control is achieved through the single tendon rope. According to the scheme, the tendon rope layout is simplified, the assembling efficiency and reliability are improved, and stable grabbing is achieved.

A robot leg structure imitating tendon motion control comprises a thigh structure, a shank structure and a motion control assembly part, the bottom of the thigh structure is rotationally connected with the top of the shank structure through a knee joint structure, and a foot plate structure is rotationally installed at the bottom of the shank structure through an ankle joint structure; the motion control assembly part is arranged at the top of the thigh structure or above the thigh structure, the motion control assembly part is connected with at least one tendon-imitating driving stay wire structure, and the tendon-imitating driving stay wire structure is used for controlling and connecting the thigh structure, the shank structure and / or the foot plate structure. According to the robot, the dynamic performance, the naturalness and the flexibility are good, the joint load is small, the whole leg can be slender and exquisite, the stability of the joint structure is high, the needed initial driving force is small, therefore, the power consumption can be lower, and the robot has the long-time endurance walking capacity.

An exercise device is disclosed to enable a user to stretch the lower limbs, lower back, hamstrings, gluteal tendons and gluteal fasciae for pain relief. The stretching device includes a padded body rest having back and leg rest sections hingedly connected together and rotatable from an unfolded configuration to a compact folded configuration lying face-to-face. First and second pairs of leg lifting straps are connected to one another by respective cam jam buckles so as to extend between the body rest and cuffs that surround the user's ankles and feet. A pulling force applied to each leg lifting strap causes the user's legs to be raised off the body rest from a horizontal flat position to a vertical upstanding position. Force monitors are located between the pairs of the leg lifting straps and the user's legs to provide a visual indication of the pulling force.

To provide a stretch cord that can be easily attached to various parts of the body. [Solution] A stretch cord (10) has a composite spring structure (3) in which a spring steel wire (1) is threaded through a tube member (2), and a main tube portion (5) connected to ring members (4) at both ends, and can be wrapped around the body to provide pressure, acupressure, and stretching. When the stretch cord (10) is wrapped around the body, the elasticity of the spring steel wire (1) applies pressure to the muscles and tendons, preventing them from being pushed outward. When the body is moved with the stretch cord (10) worn, the elasticity of the spring steel wire (1) stimulates the muscles and tendons, providing acupressure and relieving stiffness. When the stretch cord (10) is wrapped around the body in a spiral, the return force of the spring steel wire (1) stretches the muscles and tendons, preventing them from contracting.

The invention provides a tendinopathy rehabilitation training and monitoring system based on electrical stimulation, and the system comprises a detection unit which is used for measuring the electrical impedance of the tendon and muscular tissue of a patient before rehabilitation training, and providing a basis for the initial setting of electrical stimulation parameters; the electrical stimulation unit is used for monitoring the muscle contraction degree, the motion angle and the angular velocity, the blood oxygen metabolism condition of a tendon area and the pressure condition around muscles of the rehabilitation person under electrical stimulation in the rehabilitation training process. A muscle electrophysiological sensor, a joint angle sensor, a near infrared spectrum sensor, a motion capture sensor, a pressure pad sensor and the like are utilized, rehabilitation training conditions can be monitored from multiple aspects, a more detailed rehabilitation training report is generated in combination with various weight ratios, targeted training can be carried out on different individuals, various parameters can be adjusted, and the rehabilitation training efficiency is improved. The training effect is improved, training information can be fed back in time, and doctors can conveniently carry out whole-course coordination management on training.

Methods and devices for the repair of a torn or injured ligament or tendon are provided. The methods include the use of multiple scaffolds, e.g., beads. The multiple scaffolds may be positioned along a suture or other device such that they are moveable with respect to one another or the injured tissue.

The invention discloses a bioreactor for stretching culture of artificial tendons, and relates to the technical field of bioreactors, the bioreactor comprises an incubator, a supporting plate and a rectangular sliding groove formed in the supporting plate, one side of the incubator is fixedly provided with a rotary swing mechanism, one end of the rotary swing mechanism is connected in series with a plurality of groups of stretching culture modules, and the stretching culture modules are arranged in the rectangular sliding groove. When a strip-shaped toothed plate slides in a reciprocating mode, a push-pull rod on a culture solution balancing mechanism and a piston assembly can be driven to move in a reciprocating mode in a cylinder through a connecting rod piece, and when the piston assembly moves in the cylinder in a reciprocating mode, culture solutions at all positions in a rectangular culture dish can be sucked into the cylinder to be mixed through a liquid suction pipe fitting; then the mixed culture solution in the cylinder can be circularly discharged into each part in the rectangular culture dish through the liquid outlet pipe fitting, so that the hydrodynamic environment in the reactor can be improved, and the influence on the stretching culture effect of the artificial tendon due to non-uniform deposition and distribution of the culture solution can be effectively avoided.

The invention relates to a plaster for dredging collaterals of muscles and bones. The invention mainly comprises a back lining layer, a medicine layer and a protective layer, glycerol and sodium alginate are used as a matrix, and the medicine layer is obtained by mixing a traditional Chinese medicine extract prepared from asiatic toddalia root, polygala japonica, short-pedicel aconite root, fructus alpiniae oxyphyllae, datura seeds, asarum heterotropoides, artificial musk and borneol with the matrix; the obtained muscle and bone collateral dredging plaster acts on an affected part through the medicine layer with a certain thickness, has good effects of dispelling wind, eliminating dampness, promoting blood circulation and dredging collaterals, and has a health care effect on uncomfortable parts such as neck, shoulders, waist, knee joints and the like caused by wind, cold and damp evil.

The utility model discloses a formwork-removal-free composite floor slab structure with built-in trusses. A composite floor slab comprises a formwork-removal-free, the trusses and connecting ribs. A plurality of trusses are arranged on the non-dismantling formwork at intervals, the lower portions of the trusses are embedded in the non-dismantling formwork, and the upper portions of the trusses are connected through connecting ribs. The end parts of the connecting ribs extend to the edges of the plate bodies of the non-dismantling formworks, so that the adjacent non-dismantling formworks can be seamlessly spliced; the truss is composed of an upper chord rib, two lower chord ribs and two web ribs. The upper chord rib and the lower chord ribs are straight ribs, the two lower chord ribs are located on the two sides of the lower portion of the upper chord rib respectively, and the lower chord ribs and the upper chord rib extend in the same direction. The upper ends of the web bars are connected with the upper chord bars, and the lower ends of the web bars are connected with the lower chord bars; the lower chord ribs are correspondingly pre-buried in the non-dismantling formworks; the connecting ribs comprise longitudinal connecting ribs and transverse connecting ribs. The weight of the composite floor slab can be reduced, and the field installation efficiency of the composite floor slab can be improved.

The invention discloses a nanofiber functional grading scaffold and a preparation method thereof. The preparation method comprises the following steps: step 1, respectively preparing a PLCL / silk fibroin spinning solution, a PLCL / silk fibroin / MDP1 spinning solution and a PLCL / silk fibroin / hydroxyapatite spinning solution; 2, processing the three spinning solutions into nanofiber yarns through electrostatic spinning; and step 3, by taking the PLCL / silk fibroin nanofiber yarns as warp yarns and taking the three kinds of nanofiber yarns as weft yarns in sequence, weaving on a machine to obtain the stent. In the nanofiber functional grading scaffold, polypeptide MDP1 is loaded in the nanofiber yarn for simulating a fibrous cartilage interface, so that the situation that the mechanical property of the whole structure is influenced by scar hyperplasia caused by excessive inflammation of a tendon-bone interface can be prevented; meanwhile, hydroxyapatite with an excellent osteogenesis promoting effect is loaded in the nanofiber yarn for simulating the bone interface, and the mechanical property of the tendon-bone interface is further enhanced.

The invention discloses a method and a system for detecting fracture impact elastic waves of a prestressed tendon of a prestressed composite steel cylinder concrete pipe. The method comprises the following steps: S1, obtaining the surface wave velocity of pipe core concrete; s2, obtaining the predominant frequency, the P wave arrival time and the P wave velocity of the signal; s3, calculating the component thickness of the measuring point; s4, executing S1-S3 on all the measuring points in the measuring area to obtain P-wave velocity, predominant frequency, P-wave arrival time and component thickness of all the measuring points to form a data set; and S5, reconstructing the P-wave velocity, the predominant frequency, the P-wave time, the component thickness and whether the label is broken into a time sequence, designing a double-layer LSTM network, and training an LSTM model. According to the invention, the machine learning technology is utilized to comprehensively consider the influence of the P-wave velocity change of the pipe core concrete caused by the breakage of the prestressed tendon and the stripping of an external mortar protective layer on the thickness of the component, and the breakage position of the prestressed tendon of the prestressed composite steel cylinder concrete pipe can be detected.

Handheld surgical systems having an adjustable, ergonomic handheld controller and a series of interchangeable surgical instruments with dexterous, end-effectors for performing a surgical procedure, e.g., removing brain tumor tissue from confined spaces, and methods of use thereof are disclosed. The end-effector may be actuated in one or more degrees of freedom via a tendon routing system comprising a plurality of antagonistic pairs of tendons extending from the end-effector to a plurality of independently rotatable capstan shafts disposed within a housing of the interchangeable instrument and configured to be releasably and operatively coupled to one or more motors disposed within the handheld controller.

The invention discloses a concrete bridge prestressed tendon damage detection system which comprises a magnetic detection unit, a signal processing unit and a damage detection unit. The magnetic detection unit is used for collecting a leakage magnetic field signal of an area to be detected; the signal processing unit is used for performing data processing on the acquired leakage magnetic field signal to obtain processed data; and the damage detection unit is used for carrying out feature extraction on the processed data to obtain feature parameters, inputting the feature parameters into a neural network model to carry out network model training, and outputting a damage detection result by utilizing the trained network model. According to the method, the damage degree of the prestressed tendon can be accurately and quantitatively evaluated, and technical support is provided for evaluation of corrosion and fatigue damage of the bridge prestressed tendon.

The invention relates to the technical field of traditional Chinese medicine, in particular to a composition for relieving knee osteoarthritis and a preparation method of an external patch thereof, the composition comprises a Zhuang medicine component and sweet tea liquid, the Zhuang medicine component comprises a main medicine, a male medicine and an auxiliary medicine, and the main medicine comprises dendropanax dentiger, pseudo-ginseng and radix clematidis; the male medicine is prepared from litsea cubeba, tea pepper, cortex cinnamomi and prostrate centipede; the upper medicine comprises polygonum cuspidatum, philippine flemingia root, bark of himalayan coralbean, radix zanthoxyli and fructus liquidambaris. Compared with the prior art, Zhuang medicine components of a main common helper are configured on the basis of KOA Zhuang medicine pathogenesis and Zhuang medicine pathology, and all the medicines are combined for use, so that the purposes of dispelling wind, eliminating dampness, regulating and smoothing a dragon road and a fire road, promoting blood circulation to arrest pain, tonifying deficiency and strengthening muscles and bones are achieved, and the purpose of treating knee osteoarthritis is achieved; meanwhile, animal experiments and clinical experiments verify the efficacy of the external application agent, and the external application agent has the effect of relieving knee osteoarthritis.

The invention relates to a continuum robot for neurosurgery minimally invasive surgery, which comprises a reaming assembly comprising a first reaming disc, a second reaming disc located behind the first reaming disc, a plurality of first tendons used for driving the first reaming disc, and a plurality of second tendons used for driving the second reaming disc; the supporting assembly is used for supporting a subsequent space after the first broaching disc and the second broaching disc broach in place and comprises a plurality of groups of first intervertebral discs and a plurality of groups of second intervertebral discs which are the same as the first intervertebral discs in structure and are arranged in the opposite direction, and the first intervertebral discs and the second intervertebral discs are arranged on the first tendon and the second tendon in a staggered and penetrating mode in the front-back direction; the driving assembly is used for synchronously driving the first intervertebral disc or the second intervertebral disc to unlock or lock the first tendon or the second tendon, so that the first intervertebral disc or the second intervertebral disc is alternately fed along the first tendon and the second tendon. The continuous robot has compact space design and FTL characteristics, and wounds and infringement to the human body can be reduced.

The invention discloses a preparation method of a growth factor gradient bionic scaffold for tendon-bone interface regeneration and repair, and belongs to the technical field of biomedical materials. The composite scaffold is constructed by adopting a coaxial electrospinning and self-assembly technology, and is compounded by a core-shell oriented nanofiber layer and a non-oriented nanofiber layer through a gelatin adhesive to respectively simulate tendon phase and bone phase structures of a tendon-bone interface; a shell layer of the tendon-phase-simulated core-shell oriented nanofiber is a PCL layer containing CTGF, a core layer of the tendon-phase-simulated core-shell oriented nanofiber is a PVA layer containing TGF-beta1, and a bone-phase-simulated non-oriented nanofiber layer is a PCL / Gel co-spun layer containing BMP-2 polylactic acid microspheres and nano-hydroxyapatite. The scaffold can realize secondary controlled release of early-stage release of CTGF, slow release of TGF-beta1 in the middle and later periods and continuous release of BMP-2, and cooperates with a fiber orientation structure to induce graded differentiation of mesenchymal stem cells and promote integrated repair of a tendon-bone interface gradient structure, so that the problems of poor healing of a tendon-bone interface and high repeated fracture rate in a traditional repair method are solved, and the scaffold has good application prospects. The important application value is realized in the field of tendon-bone injury treatment in sports medicine.

The invention relates to the technical field of bridge engineering structure health monitoring, and discloses a bridge prestressed tendon system and method with intelligent monitoring and early warning functions, and the system comprises a prestress bearing subsystem, an intelligent sensing subsystem and a data acquisition and transmission subsystem. Wherein an intelligent ring of the intelligent sensing subsystem is coaxially clamped between a steel strand anchorage device and an anchoring steel plate and is connected to a stress path in series, and a sensor packaged in the intelligent sensing subsystem is used for outputting a physical signal reflecting the axial tension of a prestressed tendon along with the change of the intelligent ring; and the data acquisition and transmission subsystem receives the physical signal through the field signal transceiver station, calculates the prestress loss amount in combination with the environment temperature data, compares the prestress loss amount with a preset threshold value, and generates a graded early warning signal. Through the in-situ serial monitoring structure, direct quantitative sensing and real-time early warning of the stress state of the prestressed tendons are achieved, temperature interference is effectively eliminated, and the accuracy and timeliness of bridge structure safety monitoring are improved.