CN115698440A - Work support system and work support method - Google Patents

Abstract

It can simply and flexibly import machine-guided functions, and further upgrade the version of machine-guided functions as needed. In the work assisting system (1), the work of the operator is assisted by the machine-guided function, and includes: sensor parts (11A, 11B, 11C), which are controlled by the movable parts (4, 5, 6) Hold and obtain the posture information of the movable part (4, 5, 6); the control part (12), which collects the data from the sensor part (11A, 11B, 11C) through data communication with the sensor part (11A, 11B, 11C). 11C) the obtained posture information; the portable information terminal device (13), which calculates the movable amount to reach the construction target through the posture information collected by the control part (12); The movable amount calculated by the device (13) to reach the construction target is notified to the operator of the construction machine (2).

Description

Homework assistance system, homework assistance method

technical field

The present invention relates to an operation assistance system and an operation assistance method, which can be applied to, for example, a hydraulic excavator.

Background technique

In the prior art construction machines (so-called ICT construction machines) incorporating machine-guided functionality are provided.

Here, the machine guidance is a technology that provides information to the operator to achieve the construction target value and supports the operation of the construction machine by using measurement technologies such as the total station (TS: Total Station) and GNSS (Global Navigation Satellite System: Global Navigation Satellite System) . According to the machine guidance, the operator's work can be appropriately assisted, and work efficiency, safety, and work precision can be improved.

Patent Document 1 proposes a technical solution for such an ICT construction machine, and studies a technology capable of accurately grasping the inclination angle of the construction machine and the like.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2019-105160

Contents of the invention

The problem to be solved by the invention

However, in construction machinery, it is desired to be able to easily and flexibly introduce machine-guided functions, and further upgrade the version of machine-guided functions as needed.

However, in conventional construction machines, there is a problem that it is difficult to simply and flexibly introduce machine-guided functions, and further upgrade the version of the machine-guided functions as needed.

The present invention was made in consideration of the above problems, and an object of the present invention is to propose a work support system and a work support method that can easily and flexibly introduce machine-guided functions, and further upgrade the version of the machine-guided functions as needed.

means to solve the problem

In order to solve the above technical problem, technical solution 1 relates to a job assisting system, which assists the operator's job through a machine-guided function, and has:

A sensor unit that is held by a movable unit of a construction machine and acquires attitude information;

a control unit that collects the posture information acquired by the sensor unit through data communication with the sensor unit;

a portable information terminal device that calculates a movable amount to reach a construction target from the posture information collected by the control unit; and

A notification unit notifies an operator of the construction machine of the movable amount calculated by the portable information terminal device to reach a construction target.

According to the configuration of claim 1, by calculating the movable amount to achieve the construction target by the mobile information terminal device, the software and hardware used for the arithmetic processing can be easily upgraded. In addition, it is also possible to attach the sensor unit as necessary, and further replace or add the sensor unit. In this way, it is possible to simply and flexibly introduce the functions guided by the machine, and further upgrade the version of the functions guided by the machine as needed.

In technical solution 2, according to the structure of technical solution 1,

The control unit collects the posture information through the data communication by wireless communication with the sensor unit.

According to the structure of Claim 2, installation and replacement|exchange of a sensor part can be simplified, and the function of machine guidance can be easily introduced into an existing work machine by this, and the function of machine guidance can be further improved.

The technical solution 3 relates to an operation assistance method, which assists the operator's operation through the machine-guided function,

Attitude information is acquired by the sensor unit held by the movable part of the construction machine,

The portable information terminal device calculates the movable amount to reach the construction target according to the posture information,

The operator of the construction machine is notified of the calculated movable amount to achieve the construction target.

According to the configuration of claim 3, by calculating the movable amount to achieve the construction target by the mobile information terminal device, the software and hardware used for the arithmetic processing can be easily upgraded. In addition, it is also possible to attach the sensor unit as necessary, and further replace or add the sensor unit. In this way, it is possible to simply and flexibly introduce the functions guided by the machine, and further upgrade the version of the functions guided by the machine as needed.

Invention effect

According to the present invention, machine-guided functions can be introduced simply and flexibly, and further version upgrades of machine-guided functions can be performed as required.

A brief description of the drawings

FIG. 1 is a diagram showing a work assistance system according to a first embodiment of the present invention.

FIG. 2 is a block diagram of the work assistance system of FIG. 1 .

Fig. 3 is a plan view showing a notification unit.

Detailed ways

[First Embodiment]

FIG. 1 is a diagram showing a work support system 1 according to a first embodiment of the present invention, and FIG. 2 is a block diagram.

This work assisting system 1 assists the work of an operator operating the hydraulic excavator 2 through a machine guidance function in a hydraulic excavator 2 which is a construction machine.

Here, in the hydraulic excavator 2 , a boom 4 , an arm 5 , and a bucket 6 are provided in this order on a main body 3 that automatically travels on crawler belts. In addition, the assist object of the work assisting system 1 is not limited to the hydraulic excavator, and can be widely applied to various construction machines used for civil engineering and construction work, such as construction machines for ground improvement, for example.

Work assistance system 1 includes sensor units 11A, 11B, and 11C, control unit 12 , portable information terminal device 13 , and notification unit 14 .

Here, the sensor units 11A, 11B, and 11C are respectively provided on the boom 4 , the arm 5 , and the bucket 6 which are movable parts of the hydraulic excavator 2 , and acquire posture information and output it to the control unit 12 . Here, the attitude information is information capable of detecting the attitude of each movable part, and in this embodiment, three-dimensional acceleration and angular velocity information are applied.

Accordingly, as shown in FIG. 2 , the sensor units 11A, 11B, and 11C are each provided with a three-dimensional sensor 21 capable of acquiring three-dimensional acceleration and angular velocity information. In addition, a battery 22, a controller 23, and a data communication unit 24 are provided, and the electric power of the battery 22 operates, and the attitude information is acquired by the sensor 21 through the control of the controller 23, and the attitude information is transmitted by the data communication unit 24 through wireless communication. The information is sent to the control unit 12 . In this way, the sensor units 11A, 11B, and 11C can be easily installed at desired installation locations without specially installing cables for power supply and data communication by operating with the electric power of the battery 22 and transmitting posture information by wireless communication. Therefore, the work assisting system 1 can simply introduce the machine guidance function into the existing work equipment, and further improve the machine guidance function.

More specifically, an IMU (INERTIAL MEASUREMENT UNIT: Inertial Measurement Unit) sensor is applied to the sensor 21 , and BLUETOOTH (registered trademark) is applied to the wireless communication of the data communication unit 24 . In addition, various configurations capable of detecting gestures can be widely applied to the sensor 21 . In addition, the sensor units 11A, 11B, and 11C can be attached to various locations where the posture can be sufficiently detected, and they may be attached only to the bucket 6 when practicality is sufficient. Also in wireless communication, various configurations capable of data communication can be widely applied.

The control unit 12 is provided on the main body of the hydraulic excavator 2, collects posture information acquired by the sensor units 11A, 11B, and 11C through data communication with the sensor units 11A, 11B, and 11C, and outputs it to the portable information terminal device 13 .

Here, the control unit 12 ( FIG. 2 ) has the same sensor 31 as the sensor units 11A, 11B, and 11C, a controller 33 , and a data communication unit 34 . The control unit 12 starts the operation according to the instruction from the portable information terminal device 13 , and starts the operation of the sensor units 11A, 11B, and 11C under the control of the controller 33 . In addition, the attitude information acquired by the sensor units 11A, 11B, and 11C is collected, the attitude information is acquired by the sensor 31, and is output to the portable information terminal via the data communication unit 34 together with the attitude information acquired by the sensor units 11A, 11B, and 11C. device 13. In addition, notification information output from the portable information terminal device 13 is acquired via the data communication unit 34 and output to the notification unit 14 .

In addition, the control unit 12 may omit the sensor 31 when practicality is sufficient.

The portable information terminal device 13 is a so-called smart phone or a tablet terminal. By executing the application software related to the work assisting system 1, the sensor 31 can be controlled by the sensor 31 based on the posture information obtained by the sensor units 11A, 11B, and 11C obtained via the control unit 12. The acquired posture information is used to calculate the movable amount to achieve the construction target of the hydraulic excavator 2 .

More specifically, the portable information terminal device 13 has a data communication unit 43 having a data communication function by wireless communication with the control unit 12 and a data communication function with a server connected to a network. The portable information terminal device 13 acquires posture information from the control unit 12 through the data communication unit 43 , and further outputs notification information to the notification unit 14 to the control unit 12 . In addition, application software related to construction and version upgrade of the work support system 1 is further downloaded via the data communication unit 43 .

The portable information terminal device 13 records and holds the application software acquired by the data communication unit 43 in the storage unit 42 such as a nonvolatile memory. In addition, the application software of the work support system 1 held in the storage unit 42 is executed by an operation processing unit 41 such as a central processing unit (CPU: Central Processing Unit) by an operator's operation.

Thus, the arithmetic processing unit 41 detects the inclination angle of the main body 3 based on the posture information acquired in the reference posture (for example, the posture in which the bucket 6 is placed on the ground at the start of construction). In addition, the current position of the bucket 6 is calculated by calculating changes in the postures (moveable amounts) of the respective movable parts based on changes in the respective posture information from the reference posture.

The arithmetic processing unit 41 calculates the current position of the bucket 6 based on the attitude information in this way, and accepts setting of the construction start position such that the bucket 6 is placed on the ground at the start of construction, for example. Furthermore, the setting of the construction target is accepted so that the bucket 6 can temporarily excavate the construction target movably from the construction start position. In addition, the setting of the construction start position and the construction target can also be accepted by numerical values such as the depth of excavation, for example, and various methods can be widely applied.

The arithmetic processing unit 41 sequentially calculates the current position of the bucket 6 based on the attitude information sequentially input from the control unit 12 , calculates the deviation (difference) from the construction target, and calculates the movable amount to reach the construction target. In addition, the operator of the hydraulic excavator 2 is notified of the calculated movable amount to reach the construction target by the notification unit 14 via the control unit 12 .

The arithmetic processing unit 41 sequentially displays the calculation results of the movable amount to achieve the construction target on a display unit 44 such as a liquid crystal display panel. In addition, in this case, the display may be performed in the same manner as in the notification unit 14 described later.

Here, the notification unit 14 is configured to notify the operator of the movable amount to reach the construction target calculated by the portable information terminal device 13 in the driver's seat of the hydraulic excavator 2. In this embodiment, as shown in FIG. 3 , consists of a segmented display.

That is, the notification unit 14 is formed by arranging the rectangular segments S11 to S16 and S21 to S26 sequentially in two columns L1 and L2 at regular intervals in the longitudinal direction. The luminous color of the segments S13, S14, S23, S24 in the center of each column L1, L2 is formed by green, and the luminous color of the segments S11, S12, S21, S22 above the segments S13, S14, S23, S24 is formed by Yellow is formed, and the luminescence color of the segments S15 , S16 , S25 , and S26 below the segments S13 , S14 , S23 , and S24 is red.

The notification unit 14 lights up the central segments S13 , S14 , S23 , and S24 when the movable amount to reach the construction target is equal to or less than a certain value. In addition, when the movable amount to achieve the construction target is large and the bucket 6 needs to be further moved, the segment S11 or S12, S21 or S22 is turned on according to the movable amount. Also, when the movable amount to reach the construction target is a negative value and the bucket 6 is moved beyond the construction target, the segment S15 or S16, S25 or S26 is lit according to the excess amount to reach the construction target. .

In addition, the notification unit 14 is configured such that the intervals of the thresholds for determining the lighting of the segments S11 to S16 and S21 to S26 are smaller in the segments S21 to S26 in the right column L2 than in the segments S11 to S16 in the left column L1. By setting the mode, the left column L1 and the right column L2 can be used for rough adjustment and fine adjustment.

In addition, the notification unit 14 may notify the movable amount by a numerical value, or may notify by a sound or an alarm sound. In addition, the notification unit 14 may be directly driven by the portable information terminal device 13 , or the notification unit 14 may also be used by the display unit 44 of the portable information terminal device 13 .

According to the above configuration, by calculating the movable amount to reach the construction target by the mobile information terminal device 13, the software and hardware used for the arithmetic processing can be easily upgraded. In addition, this also enables attachment of the sensor units 11A, 11B, and 11C as necessary, and further replacement or addition thereof. In this way, it is possible to simply and flexibly introduce the functions guided by the machine, and further upgrade the version of the functions guided by the machine as needed.

In addition, it is also possible to record and save the work history by using the communication function of the mobile information terminal device 13 to store in the storage unit 42, etc., so that it can be utilized for business management and the like. In addition, the function of the portable information terminal device 13 can also be used to obtain attitude information, obtain current position information, illuminance information inside and outside the vehicle, and the like, thereby further improving convenience.

In addition, posture information is collected through data communication realized by wireless communication with the sensor unit, thereby simplifying the installation and replacement of the sensor unit, so that the function of machine guidance can be easily introduced into existing working equipment, and the machine guidance function can be further improved. Function.

[Other Embodiments]

As mentioned above, the preferable concrete structure which implements this invention was described in detail, However, in this invention, various changes can be made to the structure of the said embodiment in the range which does not deviate from the summary of this invention.

Explanation of reference signs

1: Work assist system; 2: Hydraulic excavator; 3: Main body; 4: Boom; 5: Stick; 6: Bucket; 11A, 11B, 11C: Sensor part; 12: Control part; 13: Portable information terminal Device; 14: notification unit; 21, 31: sensor; 22: battery; 23, 33: controller; 24, 34, 43: data communication unit; 41: calculation processing unit; 42: storage unit; 44: display unit; S11～S16, S21～S26: Segmentation.

Claims (3)

1. An operation assistance system, which assists the operation of the operator through the function of machine guidance, is characterized in that it has: a sensor unit that is held by a movable unit of the construction machine and acquires attitude information of the movable unit; a control unit that collects the posture information acquired by the sensor unit through data communication with the sensor unit; a portable information terminal device that calculates a movable amount to reach a construction target from the posture information collected by the control unit; and A notification unit notifies an operator of the construction machine of the movable amount calculated by the portable information terminal device to reach a construction target. 2. The work assistance system according to claim 1, wherein: The control unit collects the posture information through the data communication by wireless communication with the sensor unit. 3. An operation assistance system for assisting an operator's operation through a machine-guided function, characterized in that, The attitude information of the movable part of the construction machine is acquired by a sensor part held by the movable part of the construction machine, The portable information terminal device calculates the movable amount to reach the construction target according to the posture information, The operator of the construction machine is notified of the calculated movable amount to achieve the construction target.

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