Display device and function locking and releasing device for building machinery

Abstract

A locked function releasing apparatus for a display and construction equipment, which facilitates release of a function locking state of the display without using a special tool for releasing even if an authorized user forgets a PIN number (operating pattern) for releasing the function locking state of the display such as a monitor panel, thereby changing a display screen to a next one, and facilitates release of the function locking state of the display without using a special tool for releasing the locking, even if the authorized user of the construction equipment forgets a PIN number (operating pattern) for releasing the locking state of a starting function or an operating function. A plurality of setting operating patterns which are different from each other are set in storage sections. When an operating pattern input by input means corresponds to one of the setting operating patterns set in the storage sections, the display screen of the display is permitted to be changed to the next screen, to thereby release the locking state of the starting function or operating function of the construction equipment.

Description

technical field [0001] The present invention relates to a display device, and also relates to a function locking release device of a construction machine. Background technique [0002] Construction machinery is very expensive equipment, and it is necessary to effectively prevent theft. In addition, if the operation lever of the construction machine is misoperated by an inexperienced person anyway, and the operation machine operates carelessly, it will constitute a dangerous state. [0003] Therefore, it is necessary to prevent a construction machine from being operated by a person other than an authorized user, to prevent theft, and to prevent malfunction. [0004] Here, various techniques have been developed to maintain the locked state of the start function and work function of the construction machine without performing specific release operations such as password input. [0005] For example, a number key input device is set in the cab of the construction machine, and t...

AI Technical Summary

Problems solved by technology

[0011] However, according to the above-mentioned conventional technology, in order to release the function lock state, a special release tool such as a handheld terminal is required.

Carrying special tools for lifting at all times, and loading each construction machine poses a big burden on service personnel

In addition, the development, manufacture, and maintenance of special tools for decommissioning are also expensive, which poses a large burden on manufacturers of construction machinery, etc.

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