This system has been designed specifically for use with Integrated Tool Carriers (ITC) to
cover all relative national and international safety standards.
This Tech Doc details system specifications,
system functionality, installation requirements, operator display formats and functional configuration options.
Below is an example of an ITC machine
The purpose of the EQSS GEN3-RCL-ITC is to provide an additional level of safety when lifting both
suspended and non-suspended loads on ITC Machines. The GEN3-RCL-ITC system is in effect a
summation of a Cross Slope Angle, Maximum Load Capacity and a Longitudinal Moment Indicator; all combined
into a single system that handles all processes simultaneously. The GEN3-RCL-ITC system takes advantage of the most recent developments in embedded processing and display
technology to provide the most advanced and intuitive system in the market place.
Below is a list of some key features:
- Sunlight readable High Definition Graphics Display
- LMI and RCL dual system processing with one single operator display
- Advanced operator information including
- Chassis Angle NS and EW directions
- Articulation angle
- Boom angle
- Current lifting load
- Attachment radius, height and maximum lifting capacity
- Real time Longitudinal Moment Indicator
- Real time Cross Slope Stability Indicator
- Audio alarms
- System faults and advanced diagnostics
- Manual attachment selection with operator verification
- Machine reverse camera as standard
- User input via automotive dash mounted dial control
- Automatic fault detection and diagnostic screen
- Customisable graphic display skins
- Data logging functionality of all events and black box data storage redundancy
- Fast installation and calibration
- Modular system architecture with CAN bus interconnection
What the Gen 3 ITC system is not
The Gen 3 LMS system was never designed to be a weight measuring system but rather, it is a weight monitoring system, intended to create safety cutouts when the machine (on which it is mounted), is pushed beyond safety limits.
As outlined above, the Gen 3 LMS ITC system uses pressure sensors and an articulation angle sensor to monitor shifting hydraulic pressures during the normal use of the ITC. The sensor data is then used to calculate and provide a good approximation of the weight being lifted by the ITC.
This system is certainly capable of dynamically providing the operator with an indication of the weight being lifted, but this displayed weight should never be treated as if it has been taken from a set of scales. Based upon the Gen 3 calculated load, as soon as the Gen 3 system senses that the ITC machine has been pushed into an unsafe state, it will cutout operation of the hydraulics.
The weight monitoring capability of the Gen 3 system is perfectly suited for it's intended purpose (to provide an additional level of safety by monitoring the weight being lifted and then to create cutouts if the capacity has been exceeded).
System Overview:
The GEN3-RCL-ITC consists five major functional modules. These modules are connected via a Controller
Area Network Bus (CAN2.0B). The CAN bus reduces the system interconnection wiring requirements and
allows for quick installation and easy module change over in the event of damage.
Shown below is a block
diagram and module overview:
Shown below are the major System Components
System Functional Properties:
The EQSS GEN3-RCL-ITC contains the following functionality properties. The system's functionality has
been designed to meet and exceed the requirements of the Australian Standard AS1418-19 / AS1418-5 for
freely suspended loads and AS1418-10 for elevated work platforms. Additionally, world wide standards have
been taken into consideration.
Functional Properties Descriptions
User Display
The user display consists of a 7 inch wide screen high definition TFT display.
The
user display provides the following real time information:
- Boom angle in degrees (0.1 resolution)
- Working radius with attachment offsets incorporated (0.1m resolution)
- Working height with attachment offsets incorporated (0.1m resolution)
- Current attachment selection, name and attachment model number
- North South Chassis angle with widget graphic (0.1 resolution)
- East West Chassis angle with widget graphic (0.1 resolution)
- Articulation angle with widget graphic (0.1 resolution)
- Current load (100 Kg resolution)
- Longitudinal Moment Indicator (1% resolution)
- Cross Slope Stability Indicator (1% resolution)
- Maximum rated capacity for current attachment (1% resolution)
- Modern display interface with advanced graphics
- Camera for reverse, Basket Camera 1, Basket Camera 2
Chassis Angles
The current chassis angle in both NS and EW directions are displayed to the
operator. These variables are displayed in numerical digits with a 0.1 degree
resolution. The chassis angles will also be displayed with an easy to read graphic
widget.
Articulation Angle
The current articulation angle will be displayed to the operator. This variable is
displayed in numerical digits with a 0.1 degree resolution. The articulation angle
will also be displayed with an easy to read graphic widget.
Boom Angle
The current boom angle will be displayed to the operator. This variable is displayed
in numerical digits with a 0.1 degree resolution.
Working Radius
The current working radius with attachment offsets applied is displayed to the
operator (in numerical digits with a 0.1 meter resolution).
Working Height
The current working Height with attachment offsets applied is displayed to the
operator (in numerical digits with a 0.1 meter resolution).
Cross Slope Stability
Indicator
The real time cross slope stability will be displayed to the operator by a horizontal
slider bar at the top of the display. Depending on the slide slope and direction, the
bar will increase from left to right or right to left from the center of the bar. The
cross slope stability is displayed as a percentage (%) variable with a resolution of
1%. The slider bar will change color (green, yellow red), depending on the cross
slope stability.
Longitudinal Moment
Stability Indicator
The real time longitudinal moment stability indicator will be displayed to the
operator by a vertical slider bar on the left hand side of the display. Depending on
the longitudinal stability, the index bar will increase from 0 to 100%. The longitudinal
moment is displayed as a percentage (%) variable with a resolution of 1%. The
slider bar will change color (green, yellow red), depending on the longitudinal
moment.
Current Load
The current lifting load with attachment offsets applied is displayed to the operator
in numerical digits with a 100 Kg resolution
Attachment Maximum
Rated Capacity
The real time maximum rated capacity is displayed to the operator by a multi stage
bar graph. The maximum rated moment is displayed as a percentage (%) variable
with a resolution of 1%.
Reverse Camera
Display
When the machine enters reverse, a live video stream from the rear of the machine
will be displayed.
Man Basket Camera-1
Display
The operator can select to view the man basket camera-1 via a selection switch. The
camera will be connected to the GEN3 system via a patch lead from the basket.
Man Basket Camera-2
Display
The operator can select to view the man basket camera-2 via a selection switch. The
camera will be connected to the GEN3 system via a patch lead from the basket.
Modular CAN bus
Interconnection Design
The system is designed in a modular fashion where each node is connected via
the CAN bus. This allows for quick installation, advanced diagnostics, and the
ability to plug and play additional nodes as required; such as an external light
tower.
System Configuration
Machine Type and
Language Settings
The Display has an integrated 8 Gb SD card which holds all machine calibration
data, rating charts and additional information. The Display is provided pre-loaded
with all machine data for each ITC.
System Calibration
The system is calibrated using the display. The calibration process involves zeroing
the installed sensors. Typical machine calibration post installation is approx
5 minutes.
Data Logging
Data logging of all system events is logged on the SD card against a date and time
stamp generated by the internal system clock. Machine overload and tool selection
log events are backed up for the purpose of redundancy. The data log can be
accessed via laptop software.
Attachment Selection
Attachment selection is made manually by the operator, an additional CAN bus
module may be added to the system - if RFID automatic tool recognition is required.
During manual selection, the operator will be able to scroll through the attachments
selected for the machine, i.e. forks, bucket, basket, jib etc. On selection of the
attachment, the operator is required to confirm the change. When an attachment
change is made, the event log file is updated with the date time and attachment
change for record keeping purposes.
System Test Function
The system test function is available through the user menu and is used to test all
system control circuits. The system will simulate an overload on both the RCL and
LMI subsystems to produce an aggravated movement cut-out. Further diagnostics
of the system sensors will be performed and the operator will be notified of any
failed test conditions.
Audible Alarms
The Display incorporates high quality digital audio. System status notifications are
made via audio tones.
Machine De-rating
Ability
The system has incorporated a software selectable de-rating function, that when
set, can de-rate the machines maximum lifting capacity to a defined limit as
specified in kilograms.
Calibration Data and Rating Charts
All machine calibration data and digital rating charts will be supplied free of charge with all units as standard.
If the customer requires a special non standard attachment, charges may apply.
Firmware Updates
If firmware updates are required, these will be made by the EQSS engineers and supplied free of
charge. This doesn’t include major functional changes.
Calibration and Configuration Software
The EQSS GEN3-RCL-ITC calibration and configuration software is available free of charge and is downloadable from the EQSS website.
Documentation
The EQSS GEN3-RCL-ITC is supplied with a comprehensive full color Installation and User Manual.
Applicable Standards
The EQSS GEN3-RCL-ITC is designed to meet and exceed the following standards that are applicable for
both the design of the system electronics, firmware and the overall functional requirements.