Sensing device and method of construction equipment

Patent metadata

Field	Value
Publication number	US-9598036-B2
Application number	US-201314655253-A
Country	US
Kind code	B2
Filing date	Dec 5, 2013
Priority date	Dec 24, 2012
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

Abstract

The present invention relates to a device and a method for sensing (detecting) rear and side areas of construction equipment. The present invention comprises: setting a certain distance from the construction machine (or vehicles) as a safe-distance area (work pattern area); patterning fixed objects within the set safe-distance area; sounding an alarm and/or displaying a captured (or detected) image on a display when other objects excluding the fixed objects that are sensed by the construction machine (that is, the fixed objects that are patterned) are sensed.

First claim

The invention claimed is:

1. An object sensing method of a construction machine, comprising:
(A) setting a safe-distance area and obtaining location values of at least one fixed object to form a work area pattern, wherein the location values are obtained using a sensing sensor mounted at a side of the construction machine;
(B) updating the location values by detecting an object in the work area pattern in accordance with rotation and movement of the construction machine;
(C) determining whether the detected object is a fixed object in the work area pattern; and
(D) notifying that there is an object detected in the work area pattern when it is determined that the detected object is not the fixed object.

2. The object sensing method of claim 1 , wherein in operation A, the location values of the fixed object include a distance from a selected part of the construction machine to the fixed object and an angle of the fixed object.

3. The object sensing method of claim 1 , wherein in operation (A), the safe-distance area is set by distinguishing a rotation safe-distance area and a sensor recognition area in consideration of an operation rotational radius of the construction machine.

4. The object sensing method of claim 1 , wherein in operation (C), when the location values of the fixed object of the work area pattern formed in operation (A) are equal to the location values of the object detected in operation (B), it is determined that the detected object is the fixed object.

5. The object sensing method of claim 1 , wherein operation (D) includes notifying that there is an object detected within the work area pattern using an alarm sound.

6. The object sensing method of claim 1 , wherein operation (D) includes:
capturing, by a camera, an object which is detected in the work area pattern; and
displaying a captured image of the object with the work area pattern.

7. The object sensing method of claim 1 , further comprising:
determining whether the detected object is in the rotation safe-distance area of the work area pattern when it is determined that the detected object is the fixed object within the work area pattern; and
displaying an image obtained by capturing the detected object when it is determined that the detected object is within the rotation safe-distance area of the work area pattern.

8. An object sensing device of a construction machine, comprising:
a display which is mounted in a vehicle of a construction machine and displays a work area pattern and a captured image of an object;
at least one camera which is mounted on a side of the construction machine to capture an image of an object;
at least one sensor which is mounted on the side of the at least one camera and senses positions of a fixed object and a moving object; and
a control unit which controls to set a safe-distance area in consideration with the sensor, performs a patterning work of the work area using sensing information on the fixed object, and displays a captured image of the moving object on the display when the moving object is sensed within the set safe-distance area.

9. The object sensing device of claim 8 , wherein the control unit obtains location values of the fixed object in the work area pattern through the sensor in a stop state of the construction machine and updates the location values by detecting an object in the work area pattern through the sensor in a rotated state of the construction machine, and then compares the obtained location values with the updated location values so that when the two location values are equal to each other, it is determined that the detected object is a fixed object in the work area pattern.

10. The object sensing device of claim 8 , wherein the control unit obtains location values of the fixed object measured by the sensor in a stop state of the construction machine and obtains the location values of the fixed object measured by the sensor in a rotated state of the construction machine, and then performs the patterning work of the work area using the two obtained location values.

11. An object sensing method of a construction machine, comprising:
setting a safe-distance area and receiving location values of at least one fixed object to form a work area pattern;
updating the location values by detecting an object in the work area pattern in accordance with rotation and movement of the construction machine;
determining whether the detected object is a fixed object in the work area pattern; and
displaying a graphical indication of the detected object with the work area pattern when it is determined that the detected object is not the fixed object.

12. The object sensing method of claim 11 , further comprising obtaining the location values using a sensing sensor mounted at a side of the construction machine.

13. The object sensing method of claim 11 , further comprising capturing, by a camera, the detected object, and wherein the displaying of the graphical indication of the detected object includes a displaying of the captured object.

Assignees

• Doosan Infracore Co Ltd

Inventors

• Lim Ji Yeon
• Shin Jung Mug
• Park Chi Kook

Classifications

• E02F9/24 Primary

  Safety devices {, e.g. for preventing overload (E02F9/226 takes precedence)} · CPC title

• B60R2300/105

  using multiple cameras · CPC title

• B60R2300/8093

  for obstacle warning · CPC title

• B60R21/013 Primary

  including means for detecting collisions, impending collisions or roll-over · CPC title

• G01S15/931

  of land vehicles · CPC title