A weight estimation system for estimating weight of an aerospace vehicle while grounded, the weight estimation system comprising a measurement subsystem including at least one sensor configured to measure a physical property in an interface that interfaces at least one of a fuselage and a wing with an undercarriage of said aerospace vehicle, in at least one area exhibiting a measurable change in geometry that is at least partly due to said weight, said measurement subsystem configured to produce measured data indicative of said weight of said aerospace vehicle; and a processor for receiving at least part of said measured data, said processor configured to estimate said weight, by relating said measured data with predetermined physical-property-to-weight correspondence data associated with said aerospace vehicle.

The present invention relates to the technical field of systems for measurement of weight load and other physical variables in vehicles and/or containers, comprising a system of sensing and monitoring of their conditions, instantaneous or not. Consists of an external data collection subsystem (SSI) with module with sensing network (1), signal transduction module (2) and connection module (3); of a data processing and reading subsystem (SSII) with energizing module (4); reading and data acquisition module (5); processing and memory module (6); and data transmission subsystem (SSIII) with data communication module (7). The system has advantages, does not present false sensor measurements, that allow wide multiplexing, no electricity, high signal and there is no electromagnetic interference, they are robust, do not suffer corrosion and do not fail due to vibration and mechanical impacts.

A modular pavement slab comprises a body, a strain sensor array, and a sensor processor. The body includes a top surface, a bottom surface, and four side surfaces. The modular pavement slab is configured to be coupled to at least one other modular pavement slab via connectors along at least one of the side surfaces. The strain sensor array is retained within the body and is configured to detect a plurality of strains on the body resulting from vehicular traffic across the top surface of the body. The sensor processor is in communication with the strain sensor array. The sensor processor is configured to communicate input signals to the strain sensor array, receive output signals from the strain sensor array, and determine a plurality of time-varying strain values, each strain value indicating a strain experienced over time by a successive one of a plurality of regions of the body.

A modular pavement slab comprises a body, a strain sensor array, and a sensor processor. The body includes a top surface, a bottom surface, and four side surfaces. The modular pavement slab is configured to be coupled to at least one other modular pavement slab via connectors along at least one of the side surfaces. The strain sensor array is retained within the body and is configured to detect a plurality of strains on the body resulting from vehicular traffic across the top surface of the body. The sensor processor is in communication with the strain sensor array. The sensor processor is configured to communicate input signals to the strain sensor array, receive output signals from the strain sensor array, and determine a plurality of time-varying strain values, each strain value indicating a strain experienced over time by a successive one of a plurality of regions of the body.

The present invention corresponds to a weigh-in-motion system for motor vehicles based on flexible, fiber-optic sensors. The field of application of the patent object is the measurement of dynamic physical events that are caused directly or indirectly by the passage of a motor vehicle over the sensors. This system consists of 5 blocks: an information processing and display equipment (5) is connected to an optical emission and detection equipment (2), one or more presence sensors (3), a temperature sensor (4), and one or more weight sensors (1). It has advantages over other technologies, such as: simplified manufacture and compact size, sensors immune to electromagnetic interference, long service life, and the possibility of being installed on different types of pavement.

The present invention relates to a system for monitoring dynamic e weighing of vehicles, speed of vehicles on lanes, applied to the monitoring of road traffic variables, traffic control, maintenance and infrastructure, diagnosis of traffic problems, on toll roads and in the application of fines in irregular traffic situations, through the technology of optical fiber, with punctual and quasi-distributed sensors, that allow for quick response, to be encapsulated, to ease the process of installation and/or to protect the sensing optical fiber, to employ specific materials, they can be assembled in advanced configurations of optical networks and with the advantages of having a lower cost and prolonged shelf-life when compared to the other technologies; the sensors can be multiplexed, have high spatial resolution across the pavement, and manufacturing technology is simple and inexpensive and transferable due to associated costs.

A system for pavement slab analysis based on data regarding transfer of force through a sensing volume responsive to exertion of weight on the sensing volume by passing objects including a precast pavement slab defining the sensing volume and having a top surface, a plurality of strain gauges embedded in the pavement slab within the sensing volume, and load-transferring connector(s) attaching the pavement slab to an adjacent slab. The strain gauges are distributed across an XY coordinate plane parallel to the top surface. The system also includes a processing element and computer-readable instructions for receipt of electrical signals from the strain gauges and to analysis of the electrical signals to determine one or more of the following: (A) risk of a structural defect in the pavement slab, (B) risk of a problem with underlying sub-grade beneath the pavement slab, and (C) movement of the passing objects across the top surface.

A weight estimation system for estimating weight of an aerospace vehicle while grounded, the weight estimation system comprising a measurement subsystem including at least one sensor configured to measure a physical property in an interface that interfaces at least one of a fuselage and a wing with an undercarriage of said aerospace vehicle, in at least one area exhibiting a measurable change in geometry that is at least partly due to said weight, said measurement subsystem configured to produce measured data indicative of said weight of said aerospace vehicle; and a processor for receiving at least part of said measured data, said processor configured to estimate said weight, by relating said measured data with predetermined physical-property-to-weight correspondence data associated with said aerospace vehicle.

A modular pavement slab comprises a body, a strain sensor array, and a sensor processor. The body includes a top surface, a bottom surface, and four side surfaces. The modular pavement slab is configured to be coupled to at least one other modular pavement slab via connectors along at least one of the side surfaces. The strain sensor array is retained within the body and is configured to detect a plurality of strains on the body resulting from vehicular traffic across the top surface of the body. The sensor processor is in communication with the strain sensor array. The sensor processor is configured to communicate input signals to the strain sensor array, receive output signals from the strain sensor array, and determine a plurality of time-varying strain values, each strain value indicating a strain experienced over time by a successive one of a plurality of regions of the body.

The present invention relates to a weigh-in-motion system for motor vehicles based on a set consisting of loop sensors and fiber optic sensors mounted on a rigid metal profile. Its technical field of application corresponds to systems for measuring dynamic physical events that are caused directly or indirectly by the passage of a motor vehicle over its sensors. The rigid weighing sensor is made of rigid or semi-rigid metal, plastic, composite or similar material, with a deformation profile optimized for transforming vertical stresses into horizontal stresses and containing damping and protection material to attenuate external horizontal stresses. This set makes it possible to measure parameters with high precision and in a reliable and simple way, with the advantages of being installed and molded to any floor, of being minimally intrusive, of not suffering electromagnetic interference, of being low cost, of having a long service life, and of having simple manufacturing technology at a lower cost than that demonstrated in the state of the art.