On-line monitoring device and method of weighting sensors

Abstract

The invention relates to an on-line monitoring device and method of weighting sensors, which are suitable for the on-line monitoring of troubles of the weighting sensors in a weighing system. The on-line monitoring device comprises a sensor unbalance loading regulator, a signal switcher, a warning indicator and a power supply circuit, wherein the sensor unbalance loading regulator is connected with the weighting sensors; the signal switcher is connected with the sensor unbalance loading regulator, a signal detector and a weighing meter; and the warning indictor is connected with the signal detector. The on-line monitoring method is as follows: when the weighing system is weighed, the signal detector controls the signal switcher to switch signals, collects a signal value of each weighting sensor one by one and judges the troubles of the weighting sensors by contrastively analyzing weighing signal values. The invention solves the problem that the troubles of the weighting sensors can not be discovered in time because weighing signals are connected together in parallel and then sent to the weighing meter, thereby enhancing the reliability and the measuring precision of the weighing system. The invention has the advantages of compact and reasonable structure, simple and convenient operation, high reliability, easy maintenance and long service life.

Description

technical field [0001] The invention relates to an on-line monitoring device of a load cell and a method thereof, and is especially suitable for on-line monitoring of load cell faults in a weighing system. Background technique [0002] In the current common weighing system composed of multiple weighing sensors, after the weighing signal of the sensor is adjusted by the partial load, the signals are connected in parallel and sent to the weighing instrument. If one or several load cells inside the system are damaged during the weighing process, and since the load signals output by the sensors are connected in parallel, it is impossible to accurately analyze which sensor or sensors are faulty, resulting in maintenance It is particularly troublesome; in addition, if the faulty sensor is not found in time, it will cause inaccurate measurement, thereby generating economic losses. Contents of the invention [0003] The purpose of the present invention is to overcome the deficien...

AI Technical Summary

Problems solved by technology

If one or several load cells inside the system are damaged during the weighing process, and since the load signals output by the sensors are connected in parallel, it is impossible to accurately analyze which sensor or sensors are faulty, resulting in maintenance It is particularly troublesome; in addition, if the faulty sensor is not found in time, it will cause inaccurate measurement, resulting in economic losses

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