58 results about "Optic sensor" patented technology

A fibre-optic sensor for measuring a physical quantity, such as a pressure, force, acceleration or tilt, includes an optical fibre having a measurement section for measuring a strain in the fibre, and first and second structural members. The optical fibre is connected to a first fibre connection section of the first structural member and to a second fibre connection section of the second structural member. The first and second connection sections are arranged on opposite sides of the measurement section, such that at least the measurement section is suspended between the first and second fibre connection sections. At least one of the structural members is movable relative to the other in dependence of the physical quantity that is measured. The structural members are made from materials having different coefficients of thermal expansion such that a temperature induced strain in said optical fibre due to a temperature change is reduced.

Methods and systems for in-fluid testing of electro optic liquid sensors are provided. The electro optic sensor has a light source and a light detector such that a first power state is applied to the light source to generate a first light for determining whether liquid is present within the electro optic sensor. Based on a determination that liquid is present within the electro optic sensor, a second power state is applied to the light source for generating a second light. The second power state having higher power over a shorter period of time than the first power state. The second light generated from the light source is reflected and the reflected second light is received at the light detector. The reflected second light is compared to a pulse current threshold value to determine whether the electro optic sensor is functioning properly.

An optical transceiver module comprises a boss structure, an optical fiber and a photonic integrated circuit chip. The optical fiber has a transmit-receive port facing the boss structure, and is used for receiving the first optical signal and outputting a second optical signal. The photonic integrated circuit chip is located on the vertical surface of the boss structure, is coupled to the optical fiber, and is used for outputting a first optical signal and receiving a second optical signal. The photonic integrated circuit chip has a side surface facing the transmit-receive port of the optical fiber. The photonic integrated circuit chip comprises a laser emitter, an edge coupler and a first light sensor. The laser transmitter is used for generating a first optical signal. The edge coupler is adjacent to the side surface and is used for coupling the first optical signal to the optical fiber and receiving the second optical signal from the optical fiber. The first light sensor is used for receiving at least one part of the second light signal. While bidirectional signal transmission is realized, the loss of optical signals in the coupling process is reduced, and the efficiency and performance of the system are improved.

The application provides a high-sensitivity optical fiber sensor and a distributed vibration detection system, and relates to the technical field of optical fiber sensors.The high-sensitivity optical fiber sensor comprises a sensor and a transparent plastic pipe, the right side of the sensor is fixedly connected with an optical fiber one, the outer wall of the upper part of the transparent plastic pipe is provided with a threaded wall, the threaded wall is threadedly connected with a hollow transparent pipe, and the outer wall of the upper part of the hollow transparent pipe is fixedly connected with four sliding rod groups at equal intervals.A hollow sliding ring is rotated, a pressing type infusion air bag is used to paste and fix colloid coating, the elastic potential energy of springs one and two is used to drive the hollow rod and the pressing rod to be extruded and fixed, the bending between optical fibers is avoided, the influence on the sensitivity of the sensor is avoided, different modules are matched, distributed vibration signals are detected, and then a signal amplifier and a signal analyzer are matched, so that the sensitivity of the sensor is improved, and the use requirement is better met.

The application discloses a bladder pressure closed-loop control system and method with a fiber-optic sensor magnetic suction interface, and belongs to the technical field of medical devices. The application sets an independent backward-inclined fiber-optic sensor magnetic suction interface in a holding dead zone of a proximal end hub of an inner sheath, and guides the fiber-optic sensor to a distal end through a metal microtube welded by a laser in a wall of the inner sheath; a "metal-ceramic composite reinforcement" structure is adopted to embed a fiber-optic Fabry-Perot pressure sensor in a lateral wall of a ceramic beak, and an induction diaphragm of the sensor is configured to face away from a central flow passage of the inner sheath and face a radial periphery of the ceramic beak; the layout realizes complete decoupling of a monitoring path and a surgical execution path in a physical space, and guarantees in-situ and real-time monitoring of intravesical pressure in a strong electromagnetic interference environment. Meanwhile, a millisecond active pressure relief is triggered by a system host when pathological spasm is monitored, and a pressure-time integral (PTI) is calculated in real time to quantify a liquid absorption risk.

An additive manufacturing system may include an additive manufacturing machine and a control system. The additive manufacturing machine may include one or more irradiation devices respectively including a beam source configured to emit an energy beam, an optical assembly that has one or more optical elements configured to focus the energy beam emitted by the beam source, a beam source sensor configured to determine a beam source sensor value from a source measurement beam representative of the energy beam prior to the energy beam passing through one or more optical elements of the optical assembly, and an optics sensor configured to determine an optics sensor value from an optics measurement beam representative of the energy beam downstream from the one or more optical elements of the optical assembly.

The invention relates to the technical field of optical fiber sensor processing, in particular to an optical fiber sensor for selectively detecting sodium ion concentration and a detection method of the optical fiber sensor. The sodium ion selective permeation membrane is prepared from a double-angstrom-scale limited cation defect type titanium dioxide / graphene oxide composite material, and electric field excitation is cooperatively applied, so that the time of sodium ion selective permeation is shortened; meanwhile, the concentration of the sodium ions in the to-be-detected liquid is detected through the SPR tilted fiber bragg grating, and the temperature change is sensed through cooperation of the fiber Bragg grating, so that the interference of the temperature change of the solution on the detection of the concentration of the sodium ions by the SPR tilted fiber bragg grating is eliminated. Therefore, the optical fiber sensor device disclosed by the invention has the technical advantages of good selectivity, fast response, temperature interference resistance, wide detection range and the like, and can be widely applied to accurate detection of sodium ion concentration in various solutions.

The utility model discloses an optical fiber sensor for measuring the liquid level height of a solution, which comprises a laser light source, a triangular prism arranged at the bottom of the laser light source, a coupling mirror arranged at the bottom of the triangular prism, a communicating pipe arranged at the bottom of the coupling mirror, a naked core processing optical fiber arranged at the center of the communicating pipe, and a photodiode arranged at one end of the communicating pipe far away from the coupling mirror. The communication pipe is connected with the AD620 amplifier through the photodiode, the AD620 amplifier is connected with the amplifier power supply voltage, the AD620 amplifier is connected with the reverse power supply, the voltmeter and the switch, and the communication pipe is installed in the container. Compared with the prior art, the device has the advantages that the illumination intensity of the output end of the optical fiber at different liquid levels can be effectively measured, the liquid level of a solution is indirectly reflected, the purpose of measuring the liquid level of the liquid is achieved, the liquid level in a container can be accurately and directly measured, and the measurement accuracy is high. And the reading error caused by direct manual observation is greatly reduced.

The utility model discloses an aluminum-foil paper detection device of a packaging machine. The device comprises a conveying structure and a detection unit, the conveying structure is used for conveying aluminum-foil paper to a reference position in the first direction. The detection unit comprises an optical fiber sensor and a controller; the optical fiber sensor is electrically connected with the controller and a control panel in the packaging machine. The optical fiber sensor is fixedly arranged at a detection position; the controller is used for controlling the optical fiber sensor to emit detection light to a reference position in a second direction when the packaging machine runs to a first detection phase so as to judge whether aluminum-foil paper exists at the reference position or not and generating a first feedback signal to be transmitted to the control panel when the aluminum-foil paper is not detected; the control panel is used for receiving the first feedback signal and controlling the packaging machine to stop. According to the technical scheme, when the aluminum-foil paper is blocked, flanged, broken or incomplete, unqualified products can be removed in time so as to meet the requirements of the cigarette packaging technology standard, normal conveying of the aluminum-foil paper is guaranteed, and the product quality is improved.

The utility model discloses an automatic loading machine for a carrier tape, which relates to the technical field of electronic component production, and comprises a base, the front surface of the base is respectively and rotatably connected with a material guiding roll shaft, a waste material collecting roll shaft and a material pulling roll shaft, the inside of the base is rotatably connected with a rotating shaft, the front end of the rotating shaft is integrally connected with an overturning emptying shaft head, and the overturning emptying shaft head is connected with a material pulling roll shaft. An optical fiber sensor is installed on the front face of the base and located above the overturning discharging shaft head. According to the automatic loading machine for the carrier tape, the production efficiency can be remarkably improved. Through an automatic mechanical structure, a series of operations such as automatic pulling, product stripping and product loading of the material belt are realized, and complexity and low efficiency of manual loading are avoided, so that the operation efficiency of the whole production line is greatly improved. The method is particularly critical to a large-batch production scene, and remarkable economic benefits can be brought to enterprises.

The application discloses a fiber sensor based on a cascaded superstructure grating, which comprises at least one cascaded superstructure grating, and the cascaded superstructure grating is composed of two superstructure gratings spaced at a certain distance and engraved on the same fiber; the superstructure grating is composed of a series of modulation units of refractive index periodic modulation, and each modulation unit comprises an effective modulation area and a non-modulation interval area. The fiber sensor based on the cascaded superstructure grating provided by the application reduces the bandwidth of the characteristic peak of the transmission spectrum of the superstructure grating, improves the measurement precision of the wavelength moving amount of the characteristic peak, reduces the requirement on the bandwidth of a probe light source, and improves the measurement precision and stability. The application further discloses a measurement system comprising the fiber sensor based on the cascaded superstructure grating and a method for simultaneously measuring temperature and strain based on the measurement system.

The invention discloses an optical fiber and resistivity combined complex stress water-rock action real-time monitoring device. The optical fiber and resistivity combined complex stress water-rock action real-time monitoring device comprises a clamping device, a monitoring assembly and a control device. The clamp holder comprises a barrel, a first plug, a second plug and a glue barrel, and the barrel, the glue barrel, the first plug and the second plug define a confining pressure cavity. The monitoring assembly comprises an optical fiber sensor and a pole module, the optical fiber sensor is wound on the outer surface of the rock core and used for detecting the strain of the rock core, the pole module comprises a first pole and a second pole, the first pole and the second pole are used for detecting the resistivity of the rock core, the first pole extends into the rubber barrel and abuts against the end of the rock core, and the second pole extends into the rubber barrel. And the second pole is abutted against the side surface of the rock core. The control device is respectively in communication connection with the optical fiber sensor and the pole module so as to obtain the generation position and saturation distribution of the crack in the rock core.

The invention discloses a hydrophone based on a Fabry-Perot sensor, and the hydrophone comprises a housing which is provided with a first accommodation cavity, a second accommodation cavity and a sound receiving port, and the sound receiving port is communicated with external liquid; the Fabry-Perot sensor is arranged in the first accommodating cavity, the Fabry-Perot sensor comprises an optical fiber and a Fabry-Perot cavity diaphragm, and a Fabry-Perot cavity is arranged between the end face of the optical fiber and the Fabry-Perot cavity diaphragm; the waterproof supporting assembly is arranged in the second containing cavity, and the waterproof supporting assembly is suitable for blocking the communication state of the sound receiving opening and the first containing cavity, so that the two sides of the Fabry-Perot cavity diaphragm are located in the gas environment, and the external liquid pressure only acts on the waterproof supporting assembly. According to the invention, the supporting capability and the anti-pressure capability of the water-proof diaphragm of the hydrophone are improved through the water-proof supporting assembly, the Fabry-Perot sensor cavity diaphragm in the hydrophone is located in a gas environment, the detection capability and the deep water anti-pressure performance of the Fabry-Perot sensor cavity diaphragm are improved, and meanwhile, the application requirements of a test environment on vibration and pressure resistance of the Fabry-Perot sensor cavity diaphragm are met.

The application discloses a kind of for sound vibration integrated monitoring optical fiber sensor, monitoring device and method, wherein optical fiber sensor includes: sensing skeleton, for detecting ultrasonic signal and vibration signal;The side of sensing skeleton is cylindrical surface, and the end face of both sides is formed into conical recess inward, and conical recess focuses ultrasonic signal by reflection on the side of sensing skeleton;Diaphragm is set to the side end of sensing skeleton, for converting vibration signal into sound wave;First sensing optical fiber is wound on the side of sensing skeleton, for converting ultrasonic signal into first optical signal;Second sensing optical fiber is set on diaphragm, for converting sound wave into second optical signal;Wherein, first optical signal and second optical signal are output to outside, and after signal processing, the ultrasonic signal and vibration signal detected are obtained.The application realizes the simultaneous monitoring of sound wave and vibration, and is suitable for various damage monitoring.

The application discloses a fiber-optic gyroscope based on double Y waveguides for suppressing relative intensity noise of a light source, utilizes noise polarization correlation of interference signal light and matching reference light output by the same light source, and precisely adjusts the two Y waveguides to make the output intensity of the two Y waveguides consistent, the polarization states of the two Y waveguides orthogonal, suppresses the relative intensity noise of the gyroscope light source, and improves the gyroscope precision; the application specially designs a plurality of polarization beam splitter component light paths in the gyroscope light path, which is helpful to realize polarization state orthogonal, equal light intensity beam splitting and light combining, and further provides a specific use method of the gyroscope light path design, so that the above adjustment requirements of the same source interference signal light and the matching reference light of the fiber-optic gyroscope can be realized, the relative intensity noise of the light source is effectively reduced, and the output signal-to-noise ratio is improved. The application has the advantages of simple design structure, low implementation difficulty, fine adjustment, strong adaptability, good noise suppression effect, and the like, and is not only suitable for single-axis and multi-axis fiber-optic gyroscopes, but also suitable for fiber-optic sensors with other similar light path structures.

A fiber-optic sensor for measuring direct-current electric field strength, the fiber-optic sensor comprising an equal-strain cantilever beam (1), wherein a metal conductor (2) is fixed on a free end of the equal-strain cantilever beam (1); the upper and lower surfaces of the metal conductor (2) are respectively an upper charge induction surface and a lower charge induction surface, with the surface area of the upper charge induction surface being larger than the surface area of the lower charge induction surface; and an interference optical fiber (3) in a Michelson interferometer configuration is also fixedly connected to the equal-strain cantilever beam (1). A direct-current electric field strength measurement apparatus, which comprises a laser source, a circulator, a spectrometer and a sensor. After the components are connected, a quadratic function relationship between a direct-current electric field strength value and the strength value of a same interference peak in an output spectrum is determined; a corresponding database is established on the basis of the quadratic function relationship; the direct-current electric field strength measurement apparatus is used to test a direct-current electric field to be tested, so as to obtain a corresponding interference-peak strength value in a corresponding output spectrum; and on the basis of corresponding data in the database, a direct-current electric field strength value of said direct-current electric field is obtained.

The invention discloses a dynamic process monitoring method for drift spectrum analysis, which comprises the following steps of: acquiring original spectrum data of a dynamic process through an optical fiber sensor, and preprocessing the data; expanding the preprocessed spectral data based on point cloud matching; segmenting the preprocessed spectral data into a plurality of sub-segments according to a preset data point number; dynamic fitting of spectral data is realized based on a Gaussian process regression algorithm, and a fitted GPR model is obtained; and performing spectrum reduction on the spectrums at different temperatures. According to the method, the dependence on a steady-state spectrum is overcome, and a drift spectrum can be directly processed; through segmentation and matching strategies, the requirement for the training data volume is remarkably reduced; high-precision reconstruction and visualization of the dynamic process are realized; the system is simple in structure, free of complex hardware support and suitable for field deployment.

The present invention relates to a sensor system for an airfoil and related airfoil arrangement, aircraft and method. The sensor system comprises a fiber-optic sensor, a light source, an optical circulator and a signal processing device. The fiber-optic sensor is configured for attachment to the airfoil and comprises a fiber-optic core comprising a first half and a second half divided by a virtual plane extending in an axial direction of the fiber-optic core, in which first and second half a first and a second Bragg grating are respectively inscribed with different grating periods. The light source is connected to a first port of the optical circulator, an upstream side of the fiber-optic sensor is connected to a second port of the optical circulator, and the signal processing device is connected to a third port of the optical circulator. The fiber-optic sensor receives light emitted by the light source and reflects an optical signal associated with the center wavelengths of the first and second Bragg gratings to the signal processing device. The signal processing device calculates a deformation and / or a temperature of the fiber-optic sensor based on the optical signal.

The utility model discloses a kind of for hydrometallurgy electrolytic cell electrolyte temperature on-line sensing device in the technical field of hydrometallurgy, including sensing structure and fixed structure, the sensing structure includes inner tube, outer tube and fiber-optic sensor, the outer tube sleeve is connected on inner tube, the outer wall upper end of inner tube is fixedly connected with limit stopper;The top of outer tube is threadedly connected with limit cap, the limit cap is movably connected with inner tube, the limit stopper is located at the top of outer tube, and located in the inside of limit cap;The bottom of inner tube is provided with winding part, one end of the fiber-optic sensor passes through inner tube and is wound on winding part;The outer wall of outer tube is uniformly provided with through-hole one. The present application can be convenient for electrolyte temperature on-line sensing and monitoring, and can also effectively protect the fiber, avoid being scratched and damaged by knocking, so as to avoid affecting monitoring sensitivity.

The invention relates to the technical field of high-temperature dynamic stress testing of aviation dampers, and provides a method for arranging optical fiber sensors in an elastic ring high-temperature environment, which comprises the following steps of: arranging a plurality of optical fiber sensors in high-strain sensitive areas of the outer wall surface and the inner wall surface of an elastic ring; the plurality of optical fiber sensors on the same wall surface are distributed in an array manner; the optical fiber sensors and the optical fibers which are arranged between each group of damping holes and in each group of damping holes are arranged in a snakelike manner; the leading-out ends of the optical fibers are connected through couplers. Through the arrangement of the optical fiber sensor and the optical fiber, the strain of the elastic ring can be effectively measured, the strain test precision is improved, and the reliability of the dynamic stress test of the elastic ring of the elastic ring type squeeze film damper is improved.

According to the hemodynamic parameter monitoring catheter, a part of the far end of a catheter body is arranged to be an arc-shaped section, a window is formed in the bent inner side of the arc-shaped section, and a first detection part of an optical fiber sensor is exposed through the window. Thus, when the catheter body moves in the blood vessel, due to the fact that the far end of the catheter body is arranged to be the arc-shaped section, scratching between the catheter and the inner wall of the blood vessel can be reduced, damage to the blood vessel is reduced, meanwhile, the far end of the catheter has self-guiding performance, and the far end of the catheter can smoothly move to the pulmonary artery. Moreover, as the first detection part of the optical fiber sensor is located on the bent inner side of the arc-shaped section, the first detection part does not make contact with the inner wall of the blood vessel in the moving process of the catheter body, the first detection part is not affected by the inner wall of the blood vessel, blood is directly detected, and the accuracy of the detection result can be improved; meanwhile, the first detection part is prevented from being separated from the catheter body under the action of the inner wall of the blood vessel, and the surgical risk can be reduced.

Among the various aspects of the present disclosure is the provision of a disposable fiber optic sensor device for assessing tissue biomechanical properties. Disclosed herein is a fiber-optic sensor device that includes an optical fiber with a fiber tip, a displacement driver, and an interrogation system. A method to measure a biomechanical property of a tissue is also disclosed, which includes using a fiber optic sensor device to compress the targeted tissue with predefined displacement and frequency, where the counterforce deforms the soft cavity and, in turn, modulates the interference pattern is also disclosed.

The utility model discloses a sludge SV30 detection device, which relates to the technical field of sewage treatment and comprises a supporting mechanism, a settling container, a first detection mechanism, a second detection mechanism and a PLC (programmable logic controller) control module. The settling container, the first detection mechanism, the second detection mechanism and the PLC control module are fixedly connected with the supporting mechanism, and the first detection mechanism and the second detection mechanism are close to the settling container; the first detection mechanism comprises a first camera and a second camera, the first camera is fixedly mounted on a first side surface of the supporting mechanism, and the second camera is fixedly mounted on a second side surface opposite to the first side surface of the supporting mechanism; the second detection mechanism comprises a first driving motor, a first transmission rod, a guide rod, a sliding block and an optical fiber sensor; and the optical fiber sensor is fixedly connected with the sliding block and is close to the settling container. The sludge SV30 detection device has the beneficial effects that the sludge SV30 can be automatically detected, so that the efficiency and the accuracy of detecting the sludge SV30 are ensured.

A fatigue detection and operator alert system is disclosed for detecting operator fatigue in a machine having a cab, a seat, and a joystick. The fatigue detection and operator alert system comprises an optic sensor positioned non-obstructively facing an operator and configured to output a first signal consisting of images captured of an operator; a pressure sensor configured to provide a second signal indicative of a pressure of an operator hand on the joystick; a thermal sensor configured to provide a third signal indicative of a temperature of the operator; a load sensor configured to provide a fourth signal indicative of a load of an operator foot; and a controller configured to: receive the sensor signals; detect instances of operator fatigue based on the received sensor signals during non-hauling operation; and actuate an alert device to alert the operator when instances of operator fatigue are detected.

A finger gesture recognition system is provided. The finger gesture recognition system includes one or more audio sensors and one or more optic sensors. The finger gesture recognition system captures, using the one or more audio sensors, audio signal data of a finger gesture being made by a user, and captures, using the one or more optic sensors, optic signal data of the finger gesture. The finger gesture recognition system recognizes the finger gesture based on the audio signal data and the optic signal data and communicates finger gesture data of the recognized finger gesture to an Augmented Reality / Combined Reality / Virtual Reality (XR) application.

The invention relates to the technical field of contaminated soil remediation, in particular to environmental protection equipment and a remediation process for layered ecological reconstruction of contaminated soil, and the environmental protection equipment comprises a chassis moving assembly, a supporting column, a lifting platform, a multi-stage drill rod assembly, a remediation agent injection assembly and an ecological function laying mechanism. According to the equipment, accurate injection of a repairing agent is achieved through an independent fluid channel, ecological coiled materials are laid through a three-degree-of-freedom mechanical arm, and real-time monitoring and intelligent regulation and control are achieved in combination with an optical fiber sensor and a PLC central controller. The technology comprises the steps of soil sampling, repairing agent dynamic injection, ecological coiled material layered laying and the like. The utilization rate of the remediation agent can be increased, the ecological requirements of soil of different depths are met, the remediation efficiency and precision are guaranteed, and the remediation agent is particularly suitable for soil remediation in complex terrains and high and cold environments.

The system is provided with a roadside unit (RSU) transceiver equipped with a sensor suite consisting of one or more electro-optic sensors, camera sensors, thermal imaging sensors, lidar sensors, ultrasonic sensors, and / or radar sensors, and capable of receiving authenticated participant Society of Automotive Engineers (SAE) standard J2735 basic safety messages, RTK-corrected GNSS positioning data, and SAE standard J3224 sensor data sharing messages. The system may include one or more processors programmed or configured to receive data from the system's own sensor suite, reporting transceiver, and other network-connected devices, and to construct high-reliability object actor detection, classification, and tracking perception messages representing object actors within the system's field of view for use in other internal system processes, and to transmit them to other external devices for use.

The utility model discloses a kind of roller shutter door structures, it is related to roller shutter door technical field, to solve the problem that part of existing roller shutter door will influence shooting equipment identification accuracy. Its technical scheme main point is: including support frame and the taking and placing opening being penetrated and being set on support frame, and the roller shutter structure for plugging the taking and placing opening is dynamically connected on support frame, and the roller shutter structure includes two roller shutter parts at the length direction two sides of the taking and placing opening and two drive parts for driving the closure of roller shutter part, and the taking and placing opening is surrounded between two roller shutter parts, and the roller shutter part at taking and placing opening is fixedly connected with connecting frame, and camera and fiber-optic sensor inside support frame are respectively fixedly connected on two connecting frames. The utility model is set to make that shooting equipment can better realize the function of identification.

A continuum robot (1) detection apparatus based on fiber Bragg grating sensing. The apparatus is characterized by being used for force sensing in a confined space. The apparatus comprises a continuum robot (1), a fiber Bragg grating array and a syringe, wherein the fiber Bragg grating array comprises a plurality of fiber optic sensors (2), and each fiber optic sensor (2) is provided with a plurality of groups of Bragg gratings (FBG-1, FBG-2, FBG-3); the plurality of optical fiber optic sensors (2) are arranged in the circumferential direction of the continuum robot (1) in through holes provided on a tube wall of the continuum robot (1), and are used for measuring an external contact force during traveling of the continuum robot (1), and the plurality of optical fiber optic sensors (2) are all arranged parallel to a longitudinal axis of the continuum robot (1); and the syringe is arranged in an inner hole of the continuum robot (1), and comprises an injection needle (4) and an injection needle catheter (3) coaxially sleeved outside the injection needle (4), the injection needle (4) is used for injecting a drug, and the injection needle (4) and the injection needle catheter (3) are both arranged parallel to the longitudinal axis of the continuum robot (1).

This invention discloses a multi-level integrated sensing system and method for monitoring and early warning of highway infrastructure, relating to the field of intelligent transportation, aiming to meet the needs of safety monitoring and intelligent early warning throughout the entire life cycle of highways. The system includes an end-side optimized deployment module, a fiber-optic-video dual-channel transmission module, a fiber-optic physical field inversion module, a fiber-optic-video redundant sensing module, and a multi-source fusion dynamic risk management module. The end-side optimized deployment module sends the collected fiber-optic sensor signals and video monitoring data to the fiber-optic-video dual-channel transmission module. The fiber-optic physical field inversion module converts the fiber-optic sensor signals processed by the fiber-optic-video dual-channel transmission module into physical parameter information and sends it to the fiber-optic-video redundant sensing module. Based on the physical parameter information and video monitoring data, the fiber-optic-video redundant sensing module completes the identification of defects, meteorological classification, and traffic flow statistics. The multi-source fusion dynamic risk management module performs risk assessment, level classification, and early warning issuance based on the statistical data.