| 摘要 |
One embodiment of the invention relates to an electronic module associated with a hand truck structure comprising a powered lifting/lowering tray wherein the electronic module comprises a scale electrically associated with a control unit. The control unit is configured for causing a tray rise and lower as desired. The scale is mechanically associated with the tray for measuring the weight of an item placed on the scale. Such an electronic module provides for features including: automatic safety shutoff at maximum upper and lower positions, automatic weighting of a package, automatic warning when weight of package exceeds a predefined maximum weight value, power supply monitoring and warnings, time stamped data, location stamped data, transport directions, automatic customer information lookup, wireless link to remote computing device, wired or wireless link between the scale and the controller, locking feature, power management and power generation features, imaging features, audio features, and self diagnostic features.
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