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 roadway segment includes a body having a length along a direction of travel, a width along a width axis, and top and bottom halves along a depth axis. The segment also includes a strain sensor array with one or more optical fiber cables embedded in the bottom half of the body. The strain sensor array includes vehicle-strain sensors configured to detect strain on the body resulting from vehicles traveling across the top surface. The segment also includes a processor that operates the plurality of vehicle-strain sensors at a resolution of not greater than one picometer (1 pm). Any segments of the optical fiber cable(s) that intersect are separated from one another depth wise by at least two-tenths of an inch (0.2 in.). Each of the sensors is separated from each other along the width axis by at least two inches (2 in.).

Systems and methods for electronic scale auto-zeroing. One example system includes a load cell coupled to a platform of the scale and an electronic processor coupled to the load cell. The processor is configured to receive an activation command activating the scale and, responsive to receiving the command, initiate a powerup zeroing function. The processor is configured to receive, from the load cell, a first signal indicative of a force applied to the platform and, responsive to receiving the first signal, determine whether the force applied to the platform of the scale exceeds a threshold. The processor is configured to, responsive to determining that the force exceeds the threshold: cancel the powerup zeroing function, and calculate a weight based on the first signal. The processor is configured to, responsive to determining that the force does not exceed the threshold, complete the powerup zeroing function.

Systems and methods for electronic scale auto-zeroing. One example system includes a load cell coupled to a platform of the scale and an electronic processor coupled to the load cell. The processor is configured to receive an activation command activating the scale and, responsive to receiving the command, initiate a powerup zeroing function. The processor is configured to receive, from the load cell, a first signal indicative of a force applied to the platform and, responsive to receiving the first signal, determine whether the force applied to the platform of the scale exceeds a threshold. The processor is configured to, responsive to determining that the force exceeds the threshold: cancel the powerup zeroing function, and calculate a weight based on the first signal. The processor is configured to, responsive to determining that the force does not exceed the threshold, complete the powerup zeroing function.

A high-capacity weighing module has a top plate weldment (10), a bottom plate weldment (30) and a pressure-bearing assembly (20) that is between the top and bottom plate weldments. Motion between the respective top and bottom plate weldments is restricted. This structure aids in easy installation and replacement of a sensor, and integrates the functions of anti-overturning and 360° inspection, and bottom stop. This makes the weighing module much more convenient to install than a conventional high-capacity module, and has a better safety function. The weighing module has advantage in terms of a simplified product structure, reduced cost of manufacture and maintenance, uncomplicated installation procedure, and higher safety and protection.

A high-capacity weighing module has a top plate weldment (10), a bottom plate weldment (30) and a pressure-bearing assembly (20) that is between the top and bottom plate weldments. Motion between the respective top and bottom plate weldments is restricted. This structure aids in easy installation and replacement of a sensor, and integrates the functions of anti-overturning and 360° inspection, and bottom stop. This makes the weighing module much more convenient to install than a conventional high-capacity module, and has a better safety function. The weighing module has advantage in terms of a simplified product structure, reduced cost of manufacture and maintenance, uncomplicated installation procedure, and higher safety and protection.

A system and method configured to measure applied force and pressure on a load cell. The system includes an axial force pressure transducer having a hollow cross section comprising at least two strain sensitive regions, and a plurality of strain sensors connected to the at least two strain sensitive regions, wherein applied force and pressure is calculated based on strain measurements using mathematical formulae. A method of calibration of the axial force pressure transducer using known applied force and pressure measurements to calculate a calibration matrix reflecting the strain sensitivities of the at least two strain sensitive regions.

A system and method configured to measure applied force and pressure on a load cell. The system includes an axial force pressure transducer having a hollow cross section comprising at least two strain sensitive regions, and a plurality of strain sensors connected to the at least two strain sensitive regions, wherein applied force and pressure is calculated based on strain measurements using mathematical formulae. A method of calibration of the axial force pressure transducer using known applied force and pressure measurements to calculate a calibration matrix reflecting the strain sensitivities of the at least two strain sensitive regions.

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.

An overload detection processing apparatus, an overload detection system and a computer-readable recording medium storing a program capable of determining overload more accurately are provided. An overload detection processing apparatus for determining a vehicle whose loading weight exceeds a predetermined reference is provided with a processor. The processor acquires a determination value relating to magnitude of deformation of a tire from image data obtained by photographing the tire of the vehicle and determines whether or not the loading weight of the vehicle exceeds a predetermined reference based on data corresponding to the determination value and a situation relating to the tire.