A conversion section converts a change in signal information outputted from a vibration detector provided on a structural body from the change in the function of time into the change in the function of the distance between a moving object that moves on the structural body and the vibration detector. An attenuation characteristic calculation section calculates an attenuation characteristic of the structural body based on the signal information so converted as to represent the change in the function of the distance.

Hundreds of thousands of concrete bridges, buildings etc. and hundreds of billions of tons of concrete require characterization throughout the process from manufacture to pouring and curing and on throughout service life. The characterization may relate to initial concrete properties, projected concrete properties, framework removal, corrosion, failure etc. Accordingly, a variety of measurements such as water content, electrical resistivity, and half-cell corrosion potential for example would be beneficially implemented as easy to use field test equipment or embedded sensors allowing lifetime monitoring to be performed rather than discrete assessments when issues become evident.

A method and system for measuring vertical wheel impact force in real-time based on tire pressure monitoring is provided by the present invention. The system mainly includes the four modules, namely a tire pressure derotation preprocessing, a tire pressure-wheel force system identification, a calibration method, and an integrated device for tire pressure-wheel force measurement. The method uses the integrated device to collect tire pressure data in real-time. The corresponding vertical wheel impact force is obtained through the derotation preprocessing and the tire pressure-wheel force system identification, and is calibrated according to the calibration method. The present invention provides an efficient, accurate, and highly adaptable wheel force measurement solution in the theoretical aspect and device aspect, which meets the requirements for the quick evaluation of the bridge health condition. Also, the present invention has a great potential in the fields such as road safety diagnosis, automobile performance related design, etc.

In accordance with an embodiment, a method of monitoring a structural object includes performing a first set of radar measurements using a first millimeter-wave radar sensor to produce a first set of radar data, extracting a first interferometric phase from the first set of radar measurements, and determining a structural integrity of the structural object based on the extracted first interferometric phase.

System and apparatus for monitoring a structural element includes a magnetometer capable of being mounted on the structural element, a magnet capable of being mounted on a surface adjacent the structural element so that the magnetometer is positioned within a magnetic field of the magnet; and a computing device capable of being communicatively coupled to the magnetometer, the magnetometer measuring characteristics of the magnetic field of the magnet, the computing device determining deflection of the structural element based on the measured characteristics of the magnetic field and a mathematical relationship between characteristics of the magnetic field and position of the magnetometer in relation to the magnet.

A structure abnormality detection device that detects an abnormality of a structure includes means for storing a model that predicts, from a first inspection value acquired at a first inspection position, a second inspection value acquired at a second inspection position that is a position where a vibration intensity in vibration of a predetermined vibration mode at a natural frequency of the structure is substantially the same as at the first inspection position; and means for detecting an abnormality of the structure by evaluating fidelity of the first inspection value and the second inspection value acquired at a particular time to the model.

A bridge structure comprises a first supporting structure, at least one first hollow tube and a first monitor. The first supporting structure comprises bases, first pillars, a first platform. The first pillars are coupled to the bases, wherein each of the first pillars comprises first pillar chords and first pillar girders formed as first pillar trusses with the first pillar chords. The first platform is coupled to the first pillars, wherein the first platform comprises a first supporting plane, first platform chords and first platform girders formed as first platform trusses with the first platform chords. The at least one first hollow tube is located between the first pillar trusses or the first platform trusses. The first monitor is located in the at least one first hollow tube, wherein the first monitor is capable of monitoring a bridge stability.

Aspects of the present disclosure describe systems, methods and structures and applications of optical fiber sensing. Of significance, systems, methods, and structures according to aspects of the present disclosure may reuse and/or retrofit/upgrade existing optical fiber cables as part of optical fiber sensing that may find important societal application including intrusion detection, road traffic monitoring and infrastructure health monitoring. Combining such optical fiber sensing with artificial intelligence (AI) further enables powerful applications at low(er) cost.

Provided are devices and methods for monitoring a physical asset in real-time based on simulated data being transformed and applied to a virtual asset corresponding to the physical asset. In one example, the method includes receiving a data stream acquired from a structure of an asset being monitored, determining an accumulated damage amount to the asset based on the received information, the determining including performing an incremental rainflow counting algorithm on the received data stream from the asset being monitored, stress transfer function evaluations, and damage calculations with S-N curves, and outputting information concerning the accumulated damage amount of the asset for display on a display device.

Fatigue fuse mounting systems and methods are discussed in this application. It is advantageous in the field of structural monitoring for fatigue fuses that are engineered to break in sequence to both be mounted near each other and also to work toward ensuring the fatigue fuses all undergo similar load cycling. Simply sticking a set of fatigue fuses to a structure can result in each fatigue fuse from an engineered set undergoing different load cycling, which can reduce their effectiveness. Thus, fatigue fuse mounting systemsand methods of implementing the systemsare contemplated in this application. The system includes a structural frame and a fatigue fuse mounting cartridge. These components work together to ensure that each fatigue fuse in a set undergoes more uniform load cycling, thereby improving structural monitoring performance.