The invention relates to a method for calibrating a WIM (Weigh In Motion) sensor (2) built into a road (1), the sensor being suitable for determining the dynamic and/or static weight of a vehicle (3) as it is passing over the WIM sensor (2). According to the invention, a calibrating vehicle (3) that is fitted with at least one measuring wheel (4) passes over the WIM sensor (2). During travel, the dynamic wheel force (5) on the road (1) and on the WIM sensor (2) is measured dependent on time or location directly at said measuring wheel (4) and conveyed to an evaluating unit (7). In addition, at the same time WIM signal data (6) are measured at the WIM sensor (2) and also conveyed to the evaluating unit (7). The wheel force data (5) is synchronised with the WIM signal data (6) and on the basis of a comparison of the wheel force data (5) with the WIM signal data (6), a calibrating function (8) is determined, which is used for calibrating the WIM sensor (2).

Method for calibrating wim-sensors

The invention provides a measurement data detection method. The measurement data detection method comprises the following steps of: acquiring a target weighing data curve in the measuring process of the current measured object and a standard weighing data curve corresponding to an identity property of the current measured object; inquiring whether a historical weighing data curve corresponding to the identity property of the current measured object exists in the historical weighing data curve set or not; if so, calculating the first correlation degree of the historical weighing data curve, the standard weighing data curve and the target weighing data curve; judging whether the first correlation degree meets the preset first correlation standard or not, and remeasuring the current measured object when the first correlation degree does not meet the preset first correlation standard; and otherwise, adding the target weighing data curve into the historical weighing data curve set.

Measurement data detection method and system

The invention discloses a weight deviation alarm system and a weight deviation alarm method applied to digital platform truck scales. The weight deviation alarm system comprises an internal code angular difference data acquisition module, a data storage module, a real-time operation module and a sound-light alarm module, wherein the sensor internal code angular difference data acquisition module is connected with the data storage module, the data storage module is connected with the real-time operation module, and the sound-light alarm module is connected with the data storage module and the real-time operation module. By the weight deviation alarm system and the weight deviation alarm method, daily maintenance level of the digital platform truck scale is improved, anti-cheating capability of the system is improved to a certain degree, and measurement objection is reduced.

Weight deviation alarm system and weight deviation alarm method applied to digital platform truck scales

PROBLEM TO BE SOLVED: To efficiently conduct the adjusting work with few personnel in adjusting the gain value of the weight signal outputted from a load weight measuring sensor. SOLUTION: The weight signal outputted from the load weight measuring sensor arranged on a vehicle 1 is gain-corrected with the gain value held by a gain value data holding means 19, and the calculated load weight of the vehicle 1 calculated by a load weight meter 11 based on the gain-corrected weight signal is collected from the load weight meter 11 by a calculated load weight collecting means 61A. The measuring signal outputted from a measuring sensor 21 mounted with the vehicle 1 is collected by a measuring signal collecting means 61B, the actual load weight of the vehicle 1 is calculated by an actual load weight calculating means 61C based on the collected measuring signal, and the gain value held by the gain value data holding means 19 is indexed by a gain value indexing means 61D based on these data.

Gain adjusting device for load weight meter

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Gain adjusting device for load weight meter