KR102005853B1 - Apparatus for detecting swaying telescoping cage of tower crane - Google Patents

Abstract

Disclosed is a shaking detecting device capable of preventing an accident in advance by increasing concentration of a worker during a telescoping operation. The detecting device comprises: an altitude sensor for measuring an altitude of the current driver′s cabin; a shaking detection part for detecting whether or not the driver′s cabin tilts, shakes, and rotates; a photographing part having a camera for photographing a telescoping cage in which the telescoping operation is performed and related additional facilities; a communication part communicating with the hoist shaking detection part; a mode conversion part for conversion into a telescoping mode by a request of an operator in the driver′s cabin or a request of a control part; and the control part for storing a program for detecting the shaking of the driver′s cabin, and controlling each component.

Description

TECHNICAL FIELD [0001] The present invention relates to a telescoping telescoping telescoping cage of a tower crane,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a shake detecting apparatus for a telescoping operation of a tower crane, and more particularly, to a technique for enhancing concentration of an operator during a telescoping operation to prevent accidents in advance.

In general, tower cranes are installed in construction sites and used to move heavy materials and equipment. The number of tower cranes is rapidly increasing with the use of lifting equipment that takes up about 50% of the total amount of material on the construction site.

However, safety accidents related to tower cranes are constantly occurring every year due to poor safety management at the construction site.

In particular, the telescoping operation is the operation of elevating the telescoping cage to the required height by inserting a new mast into the empty space after elevating the telescoping cage to the elevated level in the installation stage of the tower crane, and it has the highest proportion of disaster cases.

The tower crane has a large weight at the top and a high installation height compared to the cross section, so there is a risk that the telescoping cage will be unbalanced during the elevating operation, and the imbalance of the telescoping cage may cause a decrease in the working speed and collapse of the tower crane .

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a shake detecting apparatus that detects a shake in a telescoping operation of a tower crane and informs an operator of the shake.

It is another object of the present invention to provide a shake detecting apparatus for increasing the concentration of an operator during a telescoping operation of a tower crane.

The above object is achieved by an apparatus for detecting a shake in a telescoping operation of a tower crane, comprising: a cab swing detection unit installed in a cab; and a hoist swing detection unit mounted on the hoist and communicating with the cab swing detection unit, The cab swing detection unit comprises: an altitude sensor for measuring the altitude of the current cab; A shake detecting unit for detecting whether the cab is tilted, shaken or rotated; A photographing unit photographing a telescoping cage having a camera and performing a telescoping operation and an associated facility; A communication unit for communicating with the hoist rocking detection unit; A mode switching unit for switching to a telescoping mode by a request by an operator's operation in the cab or by a request from the control unit; And a control unit for controlling each component, wherein the hoist shake detection unit comprises: an altitude sensor for measuring the altitude of the hoist; A shake detecting unit for detecting inclination, tremor and rotation of the hoist; A photographing unit having a camera and photographing a process in which a mast to be assembled is fixed and moved to the hoist; A communication unit for communicating with a communication unit of the cab swing detection unit; And a control unit for controlling the respective components, and a program for storing a program for detecting the shaking of the hoist, and a control unit for controlling each component.

Preferably, the shake detecting unit may be a six-axis complex sensor including a geomagnetic sensor and an acceleration sensor, or a nine axis complex sensor including a geomagnetic sensor, an acceleration sensor, and a gyro sensor.

Preferably, when the mode switching unit switches to the telescoping mode, the control unit activates the function of the shake detecting unit, and the camera of the photographing unit can perform recording in Full HD or the maximum resolution.

Preferably, the mode change by the request of the control unit may be performed when the control unit determines that the altitude value measured by the altitude sensor is greater than the average altitude value from three hours ago.

According to the above configuration, when the measurement value related to the tilt, tremor, and rotation of the hoist with the mast fixed to the cab or the mast to be assembled exceeds the reference value in the telescoping mode, the abnormality is output through the screen or speaker installed in the cab, The safety of the telescoping operation can be ensured.

In telescoping mode, telescoping operations can be performed precisely by the operator through full HD or full resolution telescoping.

As a result, the telescoping cage for assembling the mast with the hoist for transporting the mast to be assembled and the related facility can be analyzed in a stereoscopic process during the telescoping work, thereby improving the safety and reliability of the work.

1 is a schematic side view showing a tower crane to which the shake detecting apparatus of the present invention is applied.
2 is a functional block diagram showing a shake detecting apparatus according to the present invention.

It is noted that the technical terms used in the present invention are used only to describe specific embodiments and are not intended to limit the present invention. In addition, the technical terms used in the present invention should be construed in a sense generally understood by a person having ordinary skill in the art to which the present invention belongs, unless otherwise defined in the present invention, Should not be construed as interpreted or interpreted in an excessively reduced sense. In addition, when a technical term used in the present invention is an erroneous technical term that does not accurately express the concept of the present invention, it should be understood that technical terms can be understood by those skilled in the art. In addition, the general terms used in the present invention should be interpreted according to a predefined or prior context, and should not be construed as being excessively reduced.

1 is a schematic side view showing a tower crane to which the shake detecting apparatus of the present invention is applied.

A foundation mast 2 is provided on a foundation anchor 1 and a plurality of masts 3 are assembled on the foundation mast 2. [ At the upper part of the assembled mast 3, a telescoping cage 4 used for heightening the height of the mast 3 is provided.

A cab 5 is provided on the upper portion of the swivel device and immediately below the main jib 10 in a position where the working position and turning radius display panel are visible.

A cat head 6 is provided at the upper end of the cab 5 and serves to support the connecting bar 7 connecting the main jig 10 and the counting jig 8 together.

The counting jig 8 is provided on the opposite side of the main jig 10 to balance the front and rear of the tower crane and the counting jig 8 is provided with a hoisting device 9 using a balance weight and a winch.

The main jig 10 is a cantilever-shaped structure having a pivot axis as its center. The hoisting capacity is determined according to the length of the main jig 10, that is, the turning radius. The main jig 10 has a truss structure for reducing wind loads and weight.

The main jig 10 is provided with a trolley 11 which is a traversing device for determining the turning radius for the hoisting operation while being transported along the main jib 10.

The trolley 11 is provided with a hoist 13 and is suspended from the wire rope 12 lowered by the trolley 11 so that the wire rope 12 is wound or unwound while the hoisting device 9 is driven, Is transported up and down.

The shake detecting unit 100 and 200 are installed on the cab 5 and the hoist 13 respectively. The box-shaped shake detecting unit 200 can be attached and fixed to the hoist 13 using a permanent magnet.

2 is a functional block diagram showing a shake detecting apparatus according to the present invention.

As described above, the shake detecting units 100 and 200 are mounted in the cab 5 and the hoist 13, respectively, and transmit and receive data while communicating with each other via wired / wireless communication via the communication units 150 and 250.

The shake detecting unit 100 installed in the cab is composed of a control unit 110, an altitude sensor 120, a shake detecting unit 130, a photographing unit 140 and a communication unit 150, . The shake detecting unit 200 mounted on the hoist 12 includes a control unit 210, an altitude sensor 220, a shake detecting unit 230, a photographing unit 240, and a communication unit 250.

Hereinafter, each component will be described in detail.

The altitude sensor 120 measures the altitude of the current cab 5 and transmits the measured altitude to the control unit 110. The control unit 110 uses the received altitude value for the mode change as described later.

The shake detecting unit 130 senses the tilt, tremor and rotation of the cab 5 using a six-axis sensor or a nine-axis sensor, for example, and transmits the tilt, the tremble and the rotation to the control unit 110. The control unit 110, (112) or the speaker (114).

The 9-axis sensor refers to a composite sensor including a geomagnetic sensor, an acceleration sensor and a gyro sensor, and the 6-axis sensor refers to a composite sensor including a geomagnetic sensor and an acceleration sensor. Accordingly, the shake detecting unit 130 can sense tilt, tremor (vibration) and rotation through them.

The photographing unit 140 includes a camera. The camera installed in the cab 5 includes a telescoping cage 4 in which a telescoping operation is performed, and related facilities such as a footrest or a hydraulic cylinder on which a mast to be assembled is to be seated, And is mounted at a position where the bolting device can be photographed.

The communication unit 150 may include an LTE module or an RF module using air waves, for example, and may perform wireless communication or wired communication.

The mode switching unit 160 switches to the telescoping mode by a request by an operator's operation in the cab 5 or a request from the control unit 110. [

When the altitude value measured by the altitude sensor 120 is transmitted to the control unit 110, the control unit 110 determines that the altitude value received by the altitude sensor 120 If it is determined that the telescoping operation is in progress, the mode switching unit 160 is requested to switch modes.

As a result, even if the operator does not inadvertently perform mode switching for the telescoping operation, the switching to the telescoping mode is automatically performed, thereby improving the reliability of the telescoping operation.

In this case, the telescoping mode means a process of establishing an environment for the telescoping operation. For example, when the function of the shake detecting unit 130 is activated or the camera of the photographing unit 140 or the camera of the hoist 13 is full ) It is possible to proceed recording in HD or full resolution.

The altitude sensor 220 measures the altitude of the hoist 13 and transmits the measured altitude to the controller 110. The altitude sensor 220 measures the altitude of the hoist 13,

The hoist 13 is raised by the wire rope 12 by the operation of the operator and moved by the trolley 11 to transmit the mast to be assembled to the telescoping cage 4 in a state where the mast to be assembled is fixed .

The shake detecting unit 230 detects whether the hoist 13 is inclined or tilted by using a six-axis sensor or a nine-axis sensor and transmits the detected tilt to the controller 210. The controller 210, And outputs the abnormality through the screen 112 or the speaker 114 provided in the main body 5.

The photographing unit 240 includes a camera. The camera installed in the hoist 13 is mounted at a position where the mast to be assembled can be photographed while being fixed to the hoist 13 for movement and moved.

The communication unit 250 may include an LTE module or an RF module using airwaves to perform wireless communication or wired communication with the communication unit 150 of the shake detecting unit 100 of the cab.

Hereinafter, the operation of the shake detecting apparatus of the present invention will be described.

The operator in the cab 5 requests the mode switching unit 160 to switch to the telescoping mode by the operation or the control unit 110 uses the altitude value measured by the altitude sensor 120 It may request the mode switching unit 160 to switch to the telescoping mode.

The functions of the shake detecting units 130 and 230 are activated and the cameras of the photographing units 140 and 240 proceed to full HD or the maximum resolution by switching to the telescoping mode.

The mast to be assembled is fixed to the hoist 13 when the wire rope 12 is released by the operation of the operator and the hoist 13 reaches the ground surface and the wire rope 120 is wound again by the operation of the operator, Up.

In this process, the tilting, tremor, and rotation of the hoist 13 continuously moved by the shake detecting unit 230 are sensed and transmitted to the controller 210. If an abnormality occurs, that is, the tilt of the hoist 13 The control unit 210 transmits the measured value to the control unit 110 through the communication unit 250 and outputs the detected abnormality to the control unit 110 through the screen 112 or the speaker 114 installed in the cab 5, .

When the mast to be assembled is transmitted to the telescoping cage 4, the telescoping operation is started in earnest. The shake detecting unit 130 including the six-axis sensor and the nine-axis sensor detects the inclination of the cab 5, And transmits the result to the control unit 110 to analyze the operation of the telescoping cage 4 in a stereoscopic manner.

When the measured value related to the inclination, tremor and rotation of the cab 5 exceeds a reference value, the control unit 110 outputs an abnormality to the operator via the screen 112 or the speaker 114 installed in the cab 5 . For example, the screen 112 flashes or outputs a warning sound from the speaker 114 so that the operator can concentrate more.

In addition, operators can precisely telescope through full HD or telescoping work at full resolution.

As described above, according to the shake detection apparatus of the present invention, the telescoping cage for assembling the hoist and the mast for transporting the mast to be assembled and the related facility can be analyzed in a stereoscopic process during the telescoping work, thereby improving the safety and reliability of the work .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Accordingly, the scope of the present invention should not be construed as being limited to the embodiments described above, but should be construed in view of the claims set forth below.

1: foundation anchor
3: The mast
4: Telescoping cage
5: cab
10; Main gib
11: Trolley
13: Hoist
100, 200: Shake detection unit

Claims (4)

An apparatus for detecting a shake in a telescoping operation of a tower crane,
A cab swing detection unit installed in a cab, and a hoist swing detection unit mounted on the hoist and communicating with the cab swing detection unit,
The cab swing detection unit includes:
An altitude sensor for measuring the altitude of the current cab;
A shake detecting unit for detecting whether the cab is tilted, shaken or rotated;
A photographing unit photographing a telescoping cage having a camera and performing a telescoping operation and an associated facility;
A communication unit for communicating with the hoist rocking detection unit;
A mode switching unit for switching to a telescoping mode by a request by an operator's operation in the cab or by a request from the control unit; And
A control unit for storing a program for detecting the shake of the cab and controlling each component,
Wherein the controller switches the mode according to a request from the control unit when the controller determines that the current altitude value measured by the altitude sensor is greater than an average altitude value from a time before the predetermined time, Device. In claim 1,
Wherein the shake detecting unit is a six axis complex sensor including a geomagnetic sensor and an acceleration sensor or a nine axis complex sensor including a geomagnetism sensor, an acceleration sensor and a gyro sensor, in the telescoping operation of the tower crane. In claim 1,
Wherein when the telescoping mode is selected by the mode switching unit, the function of the shake detecting unit is activated by the control unit, and the camera of the photographing unit performs recording in Full HD or full resolution. In a telescoping operation. In claim 1,
The hoist shake detection unit includes:
An elevation sensor for measuring elevation of the hoist;
A shake detecting unit for detecting inclination, tremor and rotation of the hoist;
A photographing unit having a camera and photographing a process in which a mast to be assembled is fixed and moved to the hoist;
A communication unit for communicating with a communication unit of the cab swing detection unit; And
And a control unit for storing programs for detecting the shaking of the hoist and for controlling the respective components of the tower crane during the telescoping operation of the tower crane.

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