Hitachi Construction Machinery Co. Ltd（Executive President：Masafumi Senzaki/Hereinafter referred to as、Hitachi Construction Machinery）The solution supporting remote operation will be available in Japan in May 2024.“RBTSeries”Hydraulic excavator。

The Phase 1 product line-ups is equipped for remote operation“RBTRemote control”YesZX200A-7（20 tons）AndZX330A-7（30 tons）Two medium hydraulic excavators。Both models are based onZAXIS-Series 7ICTHydraulic excavator based，Can be operated remotelyICTConstruction。It is estimated that the annual sales target of the two models in Japan will be 10 units.。

RBTSeries hydraulic excavatorZX200A-7 Schematic diagram of remote operation

“RBT”The product name of the series includes a robot in which the operator works without riding on the vehicle body.“READY TO BE ROBOT”Meaning。 Hitachi Construction Machinery has added remote operation solutions to its product line-ups.，Facilitate the introduction of remote operations to the construction sit，Helps customers address challenges such as improving safety and the work environment。

Lately，At the construction site，Due to improved security、An increase in productivity、The training of skilled talents caused by the improvement of working environment and the shortage of labor force has become a difficult problem.。As one of its solutions，Customers have placed great expectations on the remote operation and unmanned driving of construction machinery.。

To meet these needs,，Hitachi Construction Machinery developed a system platform for autonomous construction machinery in August 2020.“ZCORE”，And published in May 2023 based onZCOREPlatform created to support remote operation、Development of hydraulic excavators for unmanned solutions。After that，By allowing customers to conduct empirical experiments such as practical operation.，Reflect the various needs of the site while striving for excellence，It's finally launched this time.“RBTSeries”Products。

At present，The remote operation of construction machinery is carried out in specific scenarios and industries.，Such as working in disaster reconstruction sites or in inaccessible environments.。In order to remotely operate the hydraulic excavator,，Requires significant changes to product specification，The time and effort required for importing has become a problem.。

In the future，Will face the general building、Civil engineering customers，Provide support for remote solution“RBTSeries”Hydraulic excavator，In order to improve the working environment of the construction site.、Improve safety and productivity、The goal is to strengthen personnel training.，Promote further cooperation with customers。

Main features

Can be usedRBTRemote control for remote operation

RBTThe remote operation of the series hydraulic excavator is through the operationRBTThe joystick or switch of the remote control.。In addition，Due to the car body andRBTThe remote control is two-way communication.，The vehicle body information required for the operation of the hydraulic excavator can be confirmed by the monitor in the remote controller(Angle of vehicle body and track、Engine cooling water temperature、Fuel residue, etc)。In addition，By toggling a switch in the cab of the hydraulic excavator，The operator can also ride and operate the hydraulic excavator。

 

RBTRemote controller body

RBTSchematic of the monitor for the remote control

Function and response through area controlICTConstruction，Support remote operation 

In remote operation，Sometimes it is difficult to grasp the surrounding conditions of construction machinery.。In this case,，The operator needs to confirm that collision is not allowed in other imaging systems.、Object of contact，While operating carefully.，This not only hinders the improvement of operation efficiency,，It also increases the burden on the operator.。

RBTSeries of hydraulic excavators，Ven in a situation where it is difficult to grasp the surrounding information of the machine，The zone control function can also be used to pre-limit the range of motion of the hydraulic excavator。When operating remotely，As the hydraulic excavator approaches the set boundary，The motion will slow down until it stops.，This reduces the burden on the operator。

In addition，RBTSeries of hydraulic excavators also supportICTConstruction。In remote operation，It is also possible to use the machine control function for efficient construction。