Abstract

The present invention relates to a crane safety management system using a vision camera, the crane safety management system comprising: an image information acquisition unit which is coupled to a crane and acquires image information; a central server which recognizes a person located in a sensing area by using image information transferred from the image information acquisition unit, and determines a state of the recognized person; and a manager terminal which receives information on the person located in the sensing area, transferred from the central server, and displays same.

IPC Classes  ?

• G08B 21/02 - Alarms for ensuring the safety of persons
• G08B 25/00 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
• G08B 3/02 - Audible signalling systems; Audible personal calling systems using only mechanical transmission
• G06V 10/10 - Image acquisition
• G06V 40/20 - Movements or behaviour, e.g. gesture recognition
• G06V 40/16 - Human faces, e.g. facial parts, sketches or expressions
• G06V 10/75 - Image or video pattern matching; Proximity measures in feature spaces using context analysis; Selection of dictionaries
• G06T 7/20 - Analysis of motion
• G06T 7/246 - Analysis of motion using feature-based methods, e.g. the tracking of corners or segments

Abstract

The present invention relates to an oil-flushing apparatus, for an electro-hydraulic control actuator, having a structure in which a first body, having first to fifth flow paths, a detection flow path and a test-point coupling, and a fluid pressure generation part are connected, and a high-pressure flushing guide part is disposed selectively or at all times on a pipe between the first body and the fluid pressure generation part. Therefore, operational conveniences can be provided such as enabling the oil-flushing apparatus to be easily and detachably attached to a servo actuator and separated therefrom after oil-flushing, and normal operation to resume when the servo actuator and fluid pressure generation part are reconnected.

IPC Classes  ?

• F01D 25/18 - Lubricating arrangements
• F01D 25/28 - Supporting or mounting arrangements, e.g. for turbine casing
• B08B 3/02 - Cleaning by the force of jets or sprays
• B08B 9/093 - Cleaning of containers, e.g. tanks by the force of jets or sprays

Abstract

The present invention relates to a crane having an anti-vibration function, the crane comprising: a hoist unit comprising a hoist body, a wire drum which is provided in the hoist body and on which a wire is wound, a hook which is moved up and down according to winding and unwinding of the wire wound on the wire drum, a wire motor which rotates the wire drum, and a press unit which is installed on the lower portion of the hoist body and is configured to selectively carry out downward pressing or upward recovery operation according to whether a driving hydraulic pressure is supplied; a trolley which is coupled to the hoist body and moved along a guide rail to move the hoist unit; a balancing unit which includes a structure that can be coupled to and separated from a coupling rod and a structure that can come into contact with the press unit, and of which the pose is synchronized with the hook by coupling to the coupling rod; and a control unit which controls the pose of the hook by restricting the supply of the driving hydraulic pressure to the press unit and limiting the eccentricity of the balancing unit coupled to the coupling rod via the press unit.

IPC Classes  ?

• B66C 13/06 - Auxiliary devices for controlling movements of suspended loads, or for preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
• B66C 13/16 - Applications of indicating, registering, or weighing devices