Entwicklung und Lieferung von Fernhantierungssystemen
Mobilität • Energie

Entwicklung und Lieferung von Fernhantierungssystemen

The disaster of Fukushima Daiichi in 2011 increased worldwide awareness of the risks and problems posed by nuclear accidents and the value of a specialised in-house emergency protection system. In Germany, this service is provided by Kerntechnische Hilfsdienst GmbH (KHG) in Karlsruhe. KHG provides remote-controlled manipulator systems of different sizes and can perform on-site recovery tasks where dose rates (contamination levels) are extremely high. IAGB developed the HMS for KHG based on a standard small-sized remote-controlled excavator, which has often been deployed for dismantling nuclear plants.

Customer Benefits

  • The HMS will serve Kerntechnische Hilfsdienst GmbH as an additional very versatile manipulator system.
  • Its modular design and the use of industry-standard components guarantee the continued availability of replacement parts during the required lifetime of 15 years and facilitates upgrades or modifications when necessary.

HMS TECHNICHAL DATA

  • Supported temperatures: –40°C to +55°C
  • Supported dose rates: up to 100 Gy/h (cumulative dose rates of up to 10,000 Gy)
  • Maximum speed: 5 km/h
  • Fording ability of basic vehicle: 550 mm. Climbing ability: 29°
  • Applicable with various tools, e.g. manipulator, rotary drum cutter, excavating bucket, fork lift, concrete pulveriser, hammer, scrap shears, sorting grapple and drum gripper
  • Integrated emergency recovery system for the basic vehicle in the event of a technical defect
  • 12 cameras and various sensors for radiological, thermal and atmospheric measurements

     

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    HMS Features

    The HMS is a remote-controlled manipulator system devised specifically for use in nuclear environments with extremely high local dose rates. Signals between the mobile control centre and the HMS are transmitted via radio or cable. The HMS can be combined with various tools, including a hydraulic manipulator, and can be used for a wide range of tasks monitored by a cross-linked video system.

    Highly Flexible Manipulator System (HMS)
    Main HMS components

    HMS Components

    The HMS is based on a modular design comprising the following components:

    • Basic vehicle with tools and manipulator
    • Transport and control centre vehicle
    • Emergency recovery system
    • Manual operating unit

    The entire system was developed largely using conventional, industry-standard components. A containment comprising a 65 mm thick lead casing and a 10 mm thick steel layer protects sensitive control unit components against ionising radiation.


    HMS Communication Structure

    Due to the high complexity of the HMS and the security requirements for the electric/electronic systems, IABG decided to follow the guidelines of IEC 61508 and adjusted the development process and corresponding development methods accordingly.

    The HMS control system uses a complex communication structure which partly employs redundant signalling pathways (LAN, WLAN). Protocols enable the transmission of images and control data for tools and the manipulator as well as the application of safety-critical features.

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