CN116752607A - Display system for construction machine - Google Patents

Abstract

One aspect of the present disclosure provides a display system for a construction machine including a lower traveling body, an upper rotating body rotatably mounted with respect to the lower traveling body, and a work machine mounted on the upper rotating body, wherein the display system includes: an obstacle detection system for detecting an obstacle in the vicinity of the construction machine and generating information about the obstacle; and a display unit for displaying information generated by the obstacle detection system.

Description

Display system for construction machine

Technical Field

The present disclosure relates generally to a construction machine. In a particular aspect, the present disclosure is directed to a display system for a construction machine that provides information about nearby obstacles. The present disclosure is applicable to heavy vehicles such as trucks, buses, and construction equipment among other vehicle types. Although the present disclosure may be described with respect to a particular vehicle, the present disclosure is not limited to any particular vehicle.

Background

In general, a construction machine such as an excavator or the like is configured such that an upper rotating body can freely rotate around a lower traveling body. When operating such a construction machine, in other words, when the upper rotating body rotates relative to the lower running body or when the lower running body moves rearward, there are a plurality of blind areas that are invisible to the naked eye on the driver's seat by a worker operating the construction machine.

Therefore, there is a problem in that work efficiency is lowered because a worker needs to operate the construction machine while observing a mirror provided in an upper rotating body of the construction machine or directly checking a corresponding moving path with naked eyes.

Generally, in an excavator, cameras are installed at left and right sides or at the rear of an upper rotating body, and an obstacle located in a blind area is recognized by an image photographed by the camera. However, the image of the corresponding direction is simply displayed on the monitor, and no information about the distance to the obstacle is provided.

Disclosure of Invention

According to a first aspect of the present disclosure, there is provided a display system for a construction machine including a lower traveling body, an upper rotating body rotatably mounted with respect to the lower traveling body, and a work machine mounted on the upper rotating body, wherein the display system includes: an obstacle detection system for detecting an obstacle in the vicinity of the construction machine and generating information about the obstacle; and a display unit for displaying information generated by the obstacle detection system. Technical benefits may include the following technical effects: the worker can easily recognize the position, distance, and direction of the obstacle in the vicinity of the construction machine.

In some examples, the display unit may display obstacle location information to visually indicate the location of an obstacle near the construction machine.

In some examples, the obstacle position information may include a plurality of partitions (zones) that correspond to detection areas of the obstacle detection system and are arranged along a circumference centered on a designated point, each partition may be divided into a plurality of sectors (sectors) in a radial direction of the designated point, and sectors in each partition in which an obstacle exists may be displayed to be distinguished from other sectors.

In some examples, a virtual construction machine may be displayed on the specified point, and the virtual construction machine may be connected by a wire to a sector in which an obstacle exists.

In some examples, each sector may be formed in a different color.

In some examples, the detection area of the obstacle detection system may be limited to within a predetermined range of each zone.

In some examples, the sector input through the display unit may be limited to an upper limit of the detection area of the obstacle detection system.

In some examples, the display unit may display obstacle direction information that visually indicates a direction of an obstacle in the vicinity of the construction machine.

In some examples, the obstacle direction information may include a plurality of partitions corresponding to the detection areas of the obstacle detection system and arranged along a circumference centered at the specified point, and the obstacle direction information displays the partitions in which the obstacle exists to be distinguished from other partitions.

In some examples, the range of 0 to 45 degrees in a clockwise direction relative to the front of the specified point may be a first zone, the range of 45 to 90 degrees may be a second zone, the range of 90 to 135 degrees may be a third zone, the range of 135 to 180 degrees may be a fourth zone, the range of 180 to 225 degrees may be a fifth zone, the range of 225 to 270 degrees may be a sixth zone, and the range of 270 to 315 degrees may be a seventh zone.

In some examples, the display unit may display system status information that visually indicates whether the obstacle detection system is operating properly.

In some examples, the system state information may include a symbol disposed in the center, and a continuously varying bar disposed along a circumference centered on the symbol.

In some examples, the symbol may be a check or exclamation mark.

In some examples, the obstacle detection system may detect from a location spaced a distance from the construction machine in front of and on both sides of the construction machine.

In some examples, the display unit may display: obstacle position information visually indicating a position of an obstacle in the vicinity of the construction machine; obstacle direction information visually indicating a direction of an obstacle in the vicinity of the construction machine; and system state information visually indicating whether the obstacle detection system is operating normally.

The disclosed aspects, examples (including any preferred examples), and/or appended claims may be appropriately combined with one another as would be apparent to one of ordinary skill in the art.

Additional features and advantages are disclosed in the following description, claims, and drawings, and will be apparent to those skilled in the art from the following description, claims, and drawings, or may be learned by practice of the disclosure as set forth herein.

Drawings

Examples are described in more detail below with reference to the accompanying drawings.

Fig. 1 shows an example of a basic construction of a construction machine;

FIG. 2 illustrates an example of a block diagram of a display system for a construction machine;

fig. 3 shows an example of an obstacle detection area of the obstacle detection system;

FIG. 4 shows an example of a display unit for a display system of a construction machine;

fig. 5 shows an example of a plurality of partitions of obstacle position information;

fig. 6 shows an example of a plurality of sectors of obstacle position information;

fig. 7 shows an example of obstacle direction information;

fig. 8 shows an example of system state information when the obstacle detection system is operating normally; and is also provided with

Fig. 9 shows an example of system state information when the obstacle detection system operates abnormally.

Detailed Description

The detailed description set forth below provides information and examples of the disclosed technology in sufficient detail to enable those skilled in the art to practice the disclosure.

Fig. 1 shows an example of a basic construction of a construction machine.

Referring to fig. 1, a construction machine 10 according to an aspect of the present disclosure includes a lower traveling body 11, an upper rotating body 12 rotatably supported on the lower traveling body 11, and a work machine 13, the work machine 13 including a boom 13a, an arm 13b, and an attachment 13c, the boom 13a, the arm 13b, and the attachment 13c each being operated by a cylinder and supported on the upper rotating body 12.

The lower traveling body 11 supports the load of the upper swing body 12 and the work machine 13 while moving the construction machine in the forward and backward directions for work purposes.

The upper rotating body 12 is supported on the lower traveling body 11, and is designed to rotate on the lower traveling body 11 by a rotating device including a swing motor and a swing reduction gear.

The cab 12a of the construction machine 10 may be mounted on the upper swing body 12, and a driver seat on which a construction equipment operator may sit may be provided within the cab 12 a. In front of the driver's seat, a handle or a pedal for operating the work or travel of the construction machine 10 may be provided differently.

Work machine 13 is mounted to be supported on upper swing body 12 to perform the work of construction machine 10. Here, "work" may refer to various works in civil engineering work sites and construction sites. Work machine 13 may include a boom 13a, an arm 13b, and an attachment 13c that are operated by respective cylinders, and may be mounted to be supported toward the front of upper swing body 12. Therefore, when the upper rotating body 12 rotates, the work machine 13 rotates together with the upper rotating body 12.

Fig. 2 shows an example of a block diagram of a display system for a construction machine.

Referring to fig. 2, a display system 1 of a construction machine according to the present disclosure may include: an obstacle detection system 100, the obstacle detection system 100 detecting an obstacle in the vicinity of the construction machine 10 and generating information about the obstacle; and a display unit 200, the display unit 200 displaying information generated by the obstacle detection system 100.

The obstacle detection system 100 may include a sensing unit 110, a photographing unit 120, and a control unit 130.

The sensing unit 110 includes a plurality of sensors that sense a distance to an object. The plurality of sensors may include any one or more of an ultrasonic sensor, an infrared sensor, and a radar.

For example, the sensing unit 110 may derive a distance between the obstacle and the vehicle and a distance between the obstacle and the bucket based on a reception amount or arrival time of the ultrasonic wave irradiated to the object. The sensing unit 110 transmits the derived distance information to the control unit 130.

The photographing unit 120 includes a plurality of cameras that are mounted on the construction machine 10 and have viewing angles capable of photographing the front surface, the rear surface, the left surface, and the right surface of the construction machine 10. During traveling and work, an image of the front or rear of the construction machine 10 is obtained, and the obtained photographed image is transmitted to the control unit 130.

Although not shown in the figures, the plurality of cameras may include a front camera, a rear camera, a left camera, and a right camera for capturing images of the front side, the rear side, the left side, and the right side of the construction machine 10, respectively.

Fig. 3 shows an example of an obstacle detection area of the obstacle detection system. For example, as shown in fig. 3, in the case where an obstacle is located in a range of about 0 to 315 degrees in a clockwise direction with respect to the front of the construction machine 10, the sensing unit 110 or the photographing unit 120 may detect the position of the obstacle. The partition of about 315 to 360 degrees of the construction machine 10 is an area in which the driver can recognize the position of the obstacle with the naked eye, and thus, the obstacle in the corresponding area does not have to be detected by the sensing unit 110 or the photographing unit 120. In other words, a partition of about 0 to 315 degrees in the clockwise direction with respect to the front of the construction machine 10 is a portion of the obstacle detection area D where the obstacle detection system can detect an obstacle, and a partition of about 315 to 360 degrees in the clockwise direction with respect to the front of the construction machine 10 is a portion of the non-detection area B where the obstacle detection system cannot detect an obstacle.

The control unit 130 detects an obstacle based on the sensing information of the sensing unit 110 and the photographed image of the photographing unit 120, and generates information about the obstacle. Further, one image data is generated by combining at least one photographed image of the plurality of cameras of the photographing unit 120. For example, the control unit 130 may generate a panorama using the front photographed image and the rear photographed image of the construction machine 10 and display it on the display unit 200.

Meanwhile, when the obstacle detection system 100 detects a distance too close to the front and both sides, the obstacle detection system 100 may detect the lower traveling body while the work machine rotates.

Accordingly, the obstacle detection system 100 may detect an obstacle from a location spaced a distance from the construction machine 10 in front of and on both sides of the construction machine 10.

The display unit 200 may be a separate display provided in the cab, and may display an image generated by the control unit 130. In addition, the display unit 200 may display information about the obstacle generated from the control unit 130.

Fig. 4 shows an example of a display unit for a display system of a construction machine. Specifically, as shown in fig. 4, the display unit 200 may display obstacle position information 210, obstacle direction information 220, and system state information 230.

The obstacle position information 210 visually indicates the position of an obstacle near the construction machine, and the obstacle position information 210 may be located at the center of the display unit 200.

Fig. 5 shows an example of a plurality of partitions of obstacle position information.

The obstacle position information 210 may include a plurality of partitions that correspond to the obstacle detection areas of the construction machine described above, and are arranged along a circumference centered on the designated point P.

For example, as shown in fig. 5, a range of 0 to 45 degrees in a clockwise direction with respect to the front of the designated point P may be defined as the first partition 211, a range of 45 to 90 degrees may be defined as the second partition 212, a range of 90 to 135 degrees may be defined as the third partition 213, a range of 135 to 180 degrees may be defined as the fourth partition 214, a range of 180 to 225 degrees may be defined as the fifth partition 215, a range of 225 to 270 degrees may be defined as the sixth partition 216, and a range of 270 to 315 degrees may be defined as the seventh partition 217. Here, the virtual construction machine M may be displayed on the designated point P.

That is, the first through seventh partitions 211 through 217 may correspond to an obstacle detection area D corresponding to a range of about 0 to 315 degrees in a clockwise direction with respect to the front of the construction machine 10 as shown in fig. 3.

As described above, in the case of a range of 315 to 360 degrees in the clockwise direction with respect to the front of the construction machine (which is a partition near the cab in which the worker is located), the worker can see the obstacle with the naked eye, and therefore, the corresponding region does not have to be marked as a separate partition.

Further, each partition may be divided into a total of five sectors S1 to S5. Fig. 6 shows an example of a plurality of sectors of obstacle position information. Specifically, as shown in fig. 5 and 6, each of the partitions may be divided into a first sector S1 to a fifth sector S5 in order from the center in the radial direction. Preferably, each sector may be formed in the shape of an arc.

This indicates that: the closer the sector is to the center, the closer the obstacle is to the construction machine, and the farther the sector is from the center, the farther the obstacle is from the construction machine. In other words, the sector may correspond to a distance spaced apart from the construction machine.

Meanwhile, since the obstacle detection system detects from a position spaced apart from the front and both sides of the construction machine as described above, the range covered by each sector may be different in the partition located at the rear of the construction machine and the partition located at the front, left, or right of the construction machine.

For example, among the first to third partitions 211 to 213, the sixth partition 216, and the seventh partition 217 located at the front, left, or right of the construction machine, the first sector S1 means a range from 2 to 3m to the construction machine, the second sector S2 means a range from 3 to 4m to the construction machine, the third sector S3 means a range from 4 to 5m to the construction machine, the fourth sector S4 means a range from 5 to 6m to the construction machine, and the fifth sector S5 means a range from 6 to 7m to the construction machine.

In the fourth partition 214 and the fifth partition 215 located behind the construction machine, the first sector S1 means a range from 0 to 2m from the construction machine, the second sector S2 means a range from 2 to 3m from the construction machine, the third sector S3 means a range from 3 to 4m from the construction machine, the fourth sector S4 means a range from 4 to 5m from the construction machine, and the fifth sector S5 means a range from 5 to 7m from the construction machine.

Further, each sector may be formed in a different color and displayed to be distinguished from each other. For example, each sector may be formed in red when closer to the center and may be formed in yellow when farther from the center.

When the obstacle position information 210 is displayed, a sector in which an obstacle exists may be displayed to be distinguished from other sectors of each division. Preferably, when the obstacle position information 210 is displayed, only one sector corresponding to the distance between the construction machine and the obstacle may be displayed for each division.

For example, referring to fig. 4 to 6, when an obstacle is detected within 2 to 3m in the first partition 211, the first sector S1 may be displayed. When an obstacle is detected within 3 to 4m in the second section 212, the second section S2 may be displayed. When an obstacle is detected within 4 to 5m in the third section 213, the third sector S3 may be displayed. When an obstacle is detected within 4 to 5m in the fourth section 214, the fourth sector S4 may be displayed. When an obstacle is detected within 5 to 7m in the fifth section 215, the fifth sector S5 may be displayed. When an obstacle is detected within 5 to 6m in the sixth section 216, the fourth sector S4 may be displayed. When an obstacle is detected within 4 to 5m in the seventh section 217, the third sector S3 may be displayed.

Preferably, as shown in fig. 4, the obstacle position information 210 may include a line L connecting each sector S with the centrally located virtual construction machine M. The worker can intuitively derive the distance between the construction machine and the obstacle based on the obstacle position information 210.

Meanwhile, a detection area in which the obstacle detection system 100 can detect an obstacle may be limited within a predetermined range. For example, when the detection area of the obstacle detection system 100 is limited to 0 to 3m, an obstacle in the range of 0 to 3m with respect to the construction machine is detected, and an obstacle in a range outside the range cannot be detected. In this way, the detection area of the obstacle detection system 100 may be individually limited for each partition.

Preferably, the worker may select one sector through the display unit 200 and limit the upper limit of the detection area. For example, based on the fourth partition 214 described above, when the third sector S3 is selected, the detection area of the obstacle detection system 100 may be limited to a range of 0 to 4m from the construction machine.

Preferably, a worker may select two or more sectors through the display unit 200 and limit the lower limit and the upper limit of the detection area. For example, based on the fourth partition 214 described above, when the second sector S2 and the fourth sector S4 are selected, the detection area of the obstacle detection system 100 may be limited to a range of 3 to 5m from the construction machine.

As shown in fig. 4, the obstacle direction information 220 is information visually indicating whether an obstacle exists near the construction machine, and the obstacle direction information 220 may be located at the upper left corner of the display unit 200.

Fig. 7 shows an example of obstacle direction information. Specifically, the obstacle direction information 220 has a plurality of partitions corresponding to the partitions of the obstacle position information 210 described above, but each partition in the obstacle direction information 220 is not divided into a plurality of sectors. The virtual construction machine M may be displayed at the center of the obstacle direction information 220.

Preferably, when an obstacle is detected in a corresponding zone, the obstacle direction information 220 may display a zone in which the obstacle is detected to be distinguished from other zones. For example, a region in which no obstacle is detected may be displayed in a first color, and a region in which an obstacle is detected may be displayed in a second color.

As shown in fig. 7 (a), when no obstacle is detected in the vicinity of the construction machine, all the sections of the obstacle direction information 220 may be displayed in the first color.

As shown in fig. 7 (b), when an obstacle is detected only in the fourth division 224, the obstacle direction information 220 may display the fourth division 224 in a second color that is distinguished from other divisions.

In addition, as shown in fig. 4, when an obstacle is detected in all the partitions, all the partitions of the obstacle direction information 220 may be displayed in the second color.

As shown in fig. 4, the system state information 230 is information visually indicating whether the obstacle detection system is operating normally, and the system state information 230 may be located at the upper right corner of the display unit 200.

Fig. 8 shows an example of system state information when the obstacle detection system is operating normally. Fig. 9 shows an example of system state information at the time of abnormal operation of the obstacle detection system.

As shown in fig. 8, the system state information 230a may include a check symbol 231a and a bar 232 arranged along a circumference centered on the check symbol 231 a. Specifically, when the obstacle detection system is operating normally, the system state information 230a may be displayed such that the bar 232 continuously changes in the clockwise direction together with the check symbol 231 a. In other words, when the bar is discontinuously changed, the driver can know that the screen is not operating normally.

As shown in fig. 9, the system status information 230b may include an exclamation mark symbol 231b and a bar 232 arranged along a circumference centered on the exclamation mark symbol 231 b. Specifically, for example, when the obstacle detection system is abnormal in operation, for example, when the screen cannot be normally displayed due to a camera failure, the system state information 230b may be displayed such that the bar 232 continuously changes in the clockwise direction together with the exclamation mark symbol 231 b. In other words, when the bar is discontinuously changed, the driver can know that the screen is not operating normally.

The terminology used herein is for the purpose of describing particular aspects only and is not intended to be limiting of the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. It will be further understood that the terms "comprises," "comprising," "includes," and/or "including" when used herein, specify the presence of stated features, integers, acts, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, acts, steps, operations, elements, components, and/or groups thereof.

It will be understood that, although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure.

Relative terms such as "below" or "above" or "upper" or "lower" or "horizontal" or "vertical" may be used herein to describe one element's relationship to another element as illustrated. It will be understood that these terms, and those terms discussed above, are intended to encompass different orientations than those depicted in the figures. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly connected" or "directly coupled" to another element, there are no intervening elements present.

Unless defined otherwise, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. It will be further understood that terms used herein should be interpreted as having a meaning that is consistent with their meaning in the context of this specification and the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

It should be understood that the present disclosure is not limited to the aspects described above and illustrated in the drawings; rather, those skilled in the art will recognize that many modifications and variations are possible within the scope of the disclosure and the appended claims. In the drawings and specification, the aspects have been disclosed for purposes of illustration only and not for purposes of limitation, the scope of the disclosure being set forth in the following claims.

Claims (15)

1. A display system for a construction machine including a lower traveling body, an upper rotating body rotatably mounted with respect to the lower traveling body, and a work machine mounted on the upper rotating body,

wherein the display system comprises:

an obstacle detection system for detecting an obstacle in the vicinity of the construction machine and generating information about the obstacle; and

and a display unit for displaying the information generated by the obstacle detection system.

2. The display system for a construction machine according to claim 1, wherein the display unit displays obstacle position information visually indicating a position of an obstacle in the vicinity of the construction machine.

3. The display system for a construction machine according to claim 2, wherein the obstacle position information includes a plurality of partitions that correspond to detection areas of the obstacle detection system and are arranged along a circumference centered on a specified point, each partition is divided into a plurality of sectors in a radial direction of the specified point, and a sector in which an obstacle exists in each partition is displayed so as to be distinguished from other sectors.

4. A display system for a construction machine according to claim 3, wherein a virtual construction machine is displayed on the specified point, and the virtual construction machine is connected to a sector in which the obstacle exists by a wire.

5. A display system for a construction machine according to claim 3, wherein each sector is formed in a different colour.

6. A display system for a construction machine according to claim 3, wherein the detection area of the obstacle detection system is limited within a predetermined range of each partition.

7. The display system for a construction machine according to claim 6, wherein a sector input through the display unit is limited to an upper limit of the detection area of the obstacle detection system.

8. The display system for a construction machine according to claim 1, wherein the display unit displays obstacle direction information visually indicating a direction of an obstacle in the vicinity of the construction machine.

9. The display system for a construction machine according to claim 8, wherein the obstacle direction information includes a plurality of partitions that correspond to detection areas of the obstacle detection system and are arranged along a circumference centered on a specified point, and the obstacle direction information displays the partition in which an obstacle is present to be distinguished from other partitions.

10. The display system for a construction machine according to claim 3 or 9, wherein a range of 0 to 45 degrees in a clockwise direction with respect to a front of the specified point is a first division, a range of 45 to 90 degrees is a second division, a range of 90 to 135 degrees is a third division, a range of 135 to 180 degrees is a fourth division, a range of 180 to 225 degrees is a fifth division, a range of 225 to 270 degrees is a sixth division, and a range of 270 to 315 degrees is a seventh division.

11. The display system for a construction machine according to claim 1, wherein the display unit displays system state information visually indicating whether the obstacle detection system is operating normally.

12. The display system for a construction machine according to claim 11, wherein the system state information includes a symbol arranged at a center, and a continuously variable bar arranged along a circumference centered on the symbol.

13. The display system for a construction machine of claim 12, wherein the symbol is a combination or exclamation mark.

14. The display system for a construction machine according to claim 1, wherein the obstacle detection system detects from a position spaced apart from the construction machine at a distance in front of and at both sides of the construction machine.

15. The display system for a construction machine according to claim 1, wherein the display unit displays:

obstacle position information visually indicating a position of an obstacle in the vicinity of the construction machine,

obstacle direction information visually indicating a direction of an obstacle in the vicinity of the construction machine, and

system state information visually indicating whether the obstacle detection system is operating normally.