Construction assistance system

Patent metadata

Field	Value
Publication number	US-12559909-B2
Application number	US-202118023193-A
Country	US
Kind code	B2
Filing date	Oct 28, 2021
Priority date	Nov 6, 2020
Publication date	Feb 24, 2026
Grant date	Feb 24, 2026

Abstract

The object of the present invention is to provide a constriction assistance system that can optimize the safety and the productivity in a work at a construction site. Accordingly, the construction assistance system that has a safety construction assistance function that contributes to risk reduction in regard to a worker and a work machine at a construction site includes a server that collects operation information on the work machine deployed at the construction site, and a communication network that connects the work machine with the server. The server measures an actuation count of the safety construction assistance function, calculates a safety awareness level of the worker who works at the construction site on the basis of the actuation count, and delivers the safety awareness level to a receiving device.

First claim

The invention claimed is:

1 . A construction assistance system that has a safety construction assistance function that contributes to risk reduction in regard to a worker and a work machine at a construction site, comprising:
a server; a controller incorporated in the work machine deployed at the construction site; a controller incorporated in a wearable device worn by a worker who works at the construction site; a communication network that connects the controller of the work machine, the controller of the wearable device, and the server; and
a receiving device capable of receiving information delivered from the server, wherein
the controller of the work machine is implemented with a safety construction assistance function that slows down or stops the action of the work machine based on the position information of the worker sensed by a sensor mounted on the work machine,
the controller of the wearable device is implemented with a safety construction assistance function that warns the worker of approaching the work machine based on the position information of the work machine received from the controller of the work machine through the communication network and position information of the wearable device,
the server is configured to measure an actuation count of the safety construction assistance function implemented in the controller of the work machine and the safety construction assistance function implemented in the controller of the wearable device, calculate a safety awareness level of the worker on a basis of the actuation count, and deliver the safety awareness level to the receiving device,
the safety awareness level is a numerical value obtained by quantifying a degree of care about safety of the worker within a range from 0 to 1,
a weight according to an emergency is set for each of the safety construction assistance function implemented in the controller of the work machine and the safety construction assistance function implemented in the controller of the wearable device, and
the server is configured to calculate a product sum of actuation counts of the safety construction assistance function implemented in the controller of the work machine and the safety construction assistance function implemented in the controller of the wearable device and weights according to the emergencies of the safety construction assistance function implemented in the controller of the work machine and the safety construction assistance function implemented in the controller of the wearable device as an actuation count of the safety construction assistance function implemented in the controller of the work machine and the safety construction assistance function implemented in the controller of the wearable device.

2 . The construction assistance system according to claim 1 , wherein
the server is configured to calculate the safety awareness level for a plurality of workers, when the plurality of the workers are present at the construction site.

3 . The construction assistance system according to claim 1 , wherein
the server is configured to calculate the safety awareness level for an entirety of a plurality of workers, when the plurality of the workers are present at the construction site.

4 . The construction assistance system according to claim 1 , wherein
the server is configured to calculate the safety awareness level on a basis of a relational expression such that the safety awareness level decreases according to increase in the actuation count of the safety construction assistance function implemented in the controller of the work machine and the safety construction assistance function implemented in the controller of the wearable device.

5 . The construction assistance system according to claim 1 , wherein
the controller is configured to receive the safety awareness level outputted from the server through the communication network and change a control parameter for the safety construction assistance function according to the safety awareness level.

Assignees

• Hitachi Construction Mach Co

Inventors

• Yamada Hiroyuki
• Kanazawa Akira
• Imura Shinya

Classifications

• E02F9/261

  Surveying the work-site to be treated · CPC title

• E02F9/24 Primary

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

• G06Q10/06311

  Scheduling, planning or task assignment for a person or group · CPC title

• G06Q10/0635

  Risk analysis of enterprise or organisation activities · CPC title

• G06Q10/06398

  Performance of employee with respect to a job function · CPC title