Site management system and work machine

Patent metadata

Field	Value
Publication number	US-2022333346-A1
Application number	US-202017638996-A
Country	US
Kind code	A1
Filing date	Aug 28, 2020
Priority date	Sep 3, 2019
Publication date	Oct 20, 2022
Grant date	—

Abstract

A site management system manages the positions of workers and work areas of work machines. The workers can recognize the work areas of the work machines at a work site in which the work machines and the workers carry out work. A site management device is connected to a worker terminal carried by a worker and a work machine processor is mounted on a work machine 1 . The site management device generates worker information 360 on the basis of a signal transmitted from the worker terminal and generates work machine information 350 based on a signal transmitted from the work machine processor. Work area information 380 including the position and the work area of a work machine is generated on the basis of the pieces of information 350 and 360 and a work area notification signal is transmitted with the work area information to the worker terminal device.

First claim

1 . A site management system including a site management device connected to a worker terminal device carried by a worker and a work machine information processing device mounted in a work machine, wherein
the site management device is configured to generate worker information including a position of the worker terminal device on a basis of a worker signal transmitted from the worker terminal device, generate work machine information including a position of the work machine and a work area in which the work machine operates on a basis of a machine body signal transmitted from the work machine information processing device, and generate work area information including the position of the work machine and the work area on a basis of the worker information and the work machine information and transmit a work area notification signal including the work area information to the worker terminal device.

2 . The site management system according to claim 1 , wherein
the site management device is configured to generate, as the work machine information, information including a work area notification area set in a predetermined range around the work area in addition to the position of the work machine and the work area on a basis of the machine body signal transmitted from the work machine information processing device, and generate the work area information when the position of the worker terminal device is in the work area notification area.

3 . The site management system according to claim 1 ,
wherein the site management device is configured to generate information including work area update information as the work area information when the work area of the work machine is different from a work area included in the work area notification signal of the past.

4 . The site management system according to claim 1 , wherein
the site management device is configured to generate, as the work machine information, information including a work area notification area set in a predetermined range of the work machine in addition to the position of the work machine and the work area on a basis of the machine body signal transmitted from the work machine information processing device, and generate information including work area update information as the work area information in either a case in which the position of the worker terminal device is in the work area notification area of the work machine and the work area of the work machine is different from a work area included in the work area notification signal of the past or a case in which the worker terminal device enters a new work area notification area and a work area of the work machine that is new is caused to be included in the work area information.

5 . The site management system according to claim 1 , wherein
the site management device is configured to generate information including a work area check result by the worker in addition to the position of the worker terminal device as the worker information on a basis of the worker signal transmitted from the worker terminal device.

6 . The site management system according to claim 5 , wherein
the site management device is configured to generate, as the work machine information, information including a work area notification area set in a predetermined range of the work machine in addition to the position of the work machine and the work area on a basis of the machine body signal transmitted from the work machine information processing device, and generate information including the work area check result in addition to the position of the worker terminal device as the worker information when the position of the worker terminal device is in the work area notification area, and transmit a worker state notification signal including the worker information to the work machine information processing device.

7 . The site management system according to claim 1 , further including the work machine information processing device, wherein
the worker terminal device is configured to transmit a signal including a position of the worker terminal device oneself to the site management device as the worker signal, the work machine information processing device is configured to transmit a signal including a position of the work machine information processing device oneself and the work area to the site management device as the machine body signal, and the worker terminal device is configured to receive the work area notification signal transmitted from the site management device, and notify the worker of the work area on a basis of the work area notification signal.

8 . The site management system according to claim 6 , further including the work machine information processing device, wherein
the work machine information processing device includes a notification device, and the work machine information processing device is configured to receive the worker state notification signal transmitted by the site management device, and notify the notification device of information on a worker in the work area notification area on a basis of the worker state notification signal.

9 . The site management system according to claim 8 , wherein
the work machine information processing device is configured to set a first approach notification area with respect to a worker who has checked the work area and a second approach notification area that is with respect to a worker who has not checked the work area and is wider than the first approach notification area, determine whether or not the worker has checked the work area on a basis of the worker state notification signal, and carry out first determination about whether or not the position of the worker terminal device included in the worker state notification signal is in the first approach notification area when the worker has checked the work area, and carry out second determination about whether or not the position of the worker terminal device is in the second approach notification area when the worker has not checked the work area, and cause the notification device to carry out approach notification when the position of the worker terminal device is in the first or second approach notification area in the first or second determination.

10 . A work machine including a work machine information processing device connected to a worker terminal device carried by a worker and a site management device, wherein
the work machine information processing device includes a setting input device inputting information for setting a work area in which the work machine operates, a work machine computation device, and a notification device, and the work machine computation device is configured to receive, from the site management device, a worker state notification signal including a position of the worker terminal device based on a worker signal transmitted from the worker terminal device and a work area check result by the worker, and notify the notification device of information on a worker in a work area notification area set in a predetermined range of the work machine on a basis of the worker state notification signal.

11 . The work machine according to claim 10 , wherein
the work machine computation device is configured to set a first approach notification area with respect to a worker who has checked the work area and a second approach notification area that is with respect to a worker who has not checked the work area and is wider than the first approach notification area, determine whether or not the worker has checked the work area on a basis of the worker state notification signal, and carry out first determination about whether or not th

Assignees

• Hitachi Construction Mach Co

Inventors

• Mizuochi Mariko
• Yamada Hiroyuki
• Sakamoto Hiroshi

Classifications

• E02F9/26

  Indicating devices {(E02F5/145 takes precedence)} · CPC title

• G06Q50/08

  Construction · CPC title

• H04W4/12

  Messaging; Mailboxes; Announcements · CPC title

• E02F9/20 Primary

  Drives; Control devices (gearings in general F16H; controlling in general G05; electric multi-motor drives H02K, H02P) · CPC title

• G06Q10/063

  Operations research, analysis or management · CPC title