Toomey Earthmovers ECS Manuale utente
ISSUE
C
April 2018
USER HANDBOOK
ASSEMBLY INSTRUCTIONS
SPARE PARTS
TOOMEY EARTHMOVERS
Shed 2 168 Loves Road Alberton, QLD. 4207, Australia
Phone: (+61)427 182 796
Original Instructions
Contents
Thank You ............................................................................................................................................. 3
1
1.1 Manufacturer Information .......................................................................................................... 3
1.2 Your Distributor ........................................................................................................................... 3
Introduction ......................................................................................................................................... 4
1
1.1 Description of the ECS ................................................................................................................. 4
1.2 Components ................................................................................................................................. 5
1.2.1 Identification of Components ............................................................................................. 5
System Requirements .......................................................................................................................... 6
2
Considerations ..................................................................................................................................... 6
3
Set up Instructions ............................................................................................................................... 7
4
4.1 ECM Setup at the Base Station ................................................................................................... 7
4.2 900MHz Radio Module connection to Rover ........................................................................... 10
4.3 Hard wired connection to the Rover ......................................................................................... 11
4.4 Starting the Compensation ........................................................................................................ 11
Troubleshooting .................................................................................................................................. 12
5
DISCLAIMER ........................................................................................................................................ 12
6
Spare Parts .......................................................................................................................................... 13
7
Notes .................................................................................................................................................. 14
8
Table of Figures
Figure 1 System Overview ............................................................................................................................ 4
Figure 2 ECS Components ............................................................................................................................ 5
Figure 3 Base Station with ECM and 900 MHz radio antenna mounting.................................................. 7
Figure 4 Actuator to ECM Connection ........................................................................................................ 8
Figure 5 ECM Power Cable Connection ...................................................................................................... 9
Figure 6 900 MHz Rover Module mounted to bracket............................................................................ 10
Figure 7 Direct connection with Serial Cable between ECM and Rover Receiver ................................... 11
Thank You
1
Thank you for purchasing a Toomey ECS - Elevation Compensation System for GPS. This system is
our unique solution to the problems faced over many years by users of GPS for elevation control
of earthmoving equipment. Although care has been taken in the design and manufacturing of a
quality product, TOOMEY EARTHMOVERS can in no way be held responsible for the day-to-day
GPS solution and the influences that external influences have over the quality of the solution.
Any ECS operators must have read and understand this manual before connecting the Base
Station to this system allowing them to use the equipment effectively and safely. Failure to
follow these instructions may result in inaccuracy or unreliability. This manual must be kept with
the ECS Case at all times. If you have questions not answered in this manual or need additional
copies please contact your distributor for your country or Toomey Earthmovers directly.
1.1
Manufacturer Information
Manufacturer Name: Toomey Earthmovers
Manufacturer Address: 2/168 Loves Road, Alberton, 4207, Queensland, Australia
1.2
Your Distributor
To ensure the best conditions for after sales support, we recommend you note the following
information:
Product Designation _______________________________
Serial Number _______________________________
Distributor _______________________________
Address _______________________________
Address _______________________________
Post Code _______________________________
Telephone _______________________________
After Sale Support Agent _______________________________
Technician _______________________________
Mobile Number _______________________________
Notes
ECS USER HANDBOOK
Introduction
1
1.1
Description of the ECS
The Toomey ECS – Elevation Compensation System - is our unique way of compensating for the
changes in elevation experienced throughout the day when using GPS for height control for
earthmoving or surveying.
The system determines elevation “shifts” or “drift” by using the real time elevation from a
stationary GPS Rover and then using that information to physically adjust the GPS Base station
height with the use of the included linear actuator. The object of the exercise is to maintain a
constant elevation at the stationary Rover.
There are two factors which, when combined, allow the ECS concept to work.
Firstly, the Base Station has a direct effect on the Rover similar to how a Laser Transmitter relates
to a Laser Receiver i.e. if you change the height of the Base Station; the Rover experiences a
similar elevation change.
Secondly, most Rover receivers experience a similar “drift” amount at roughly the same time.
There are differences in “drift” figures at different base line distances though practical reality
suggests that these differences are marginal and acceptable in most applications.
NOTE: It is worth mentioning that the “drift” values start from nothing within a few meters of
the Base Station and grow out to about 150 meters from the Base Station from where it appears
that only marginal variations occur. It has been seen that on hotter days (above 35C, this
distance could be a bit further). Therefore, our advice is to have the Base Station no closer than
150 meters from the working area and to put the Rover at the midpoint of the working area.
Figure 1 System Overview
ECS USER HANDBOOK
1.2
Components
The system comprises three major components;
1. ECM or Elevation Compensation Module; this is the main Control Box.
2. Rover Module or RM.
Note: Both the ECM and RM are fitted with 900 MHz Spread Spectrum radios.
3. Actuator.
The cables and accessories include;
1. ECM Power Cable.
2. RM Power/Serial Cable.
3. ECM Radio Antenna and co-axial cable.
4. RM Radio Antenna and co-axial cable.
5. Direct Connect Serial Cable (ECM to RM).
6. OPTIONAL - John Deere Serial/Data Cable (if supplied to suit a John Deere system)
7. Long Tripod brackets (2 of).
8. RM Tripod Mount bracket.
1.2.1 Identification of Components
Throughout this manual, reference is made to the individual components by name. The reader is
urged to familiarize themselves using the illustration below.
Figure 2 ECS Components
Elevation Control Module
900MHz Radio Modem
Actuator
900 MHzAntennas
Cables and Accessories
ECS USER HANDBOOK
System Requirements
2
A 12 volt power source is required for the Elevation Control Module and the Bluetooth Module.
NOTE: The use of solar panels to charge a battery while running any GPS Receiver is
discouraged as voltage changes can affect the GPS receiver and result in fluctuating elevation
figures. It is advised to have two batteries if running solar panels – one being charged and one
running the GPS.
A GPS Rover Receiver is also required to provide a stationary elevation solution. This can also be
sourced from your local GPS retailer or you may have a spare unit not being used that can be
added to this system.
The rover receiver must be able to acquire an RTK “fix” from the Base Station. The Elevation
Control Module only works with an RTK NMEA output. The stationary Rover Receiver must be
configured to output a NMEA GGA String @ 1Hz and 38.4K Baud rate. Please consult your GPS
Rover supplier for support.
Considerations
3
The vertical accuracy of the GPS solution varies between locations and times. It is also affected by
atmospheric conditions.
The use of the ECS assumes that local conditions are stable though no guarantees are implied.
The “dead band” or “neutral zone” of the ECS is fixed (+/- 3mm or 1/100’) and no adjustments can
be made.
The ECM is factory calibrated and only basic speed adjustment can be made to the unit by the
operator.
The repeatability of this system currently relies on both the Base tripod and Rover tripod being
stationary throughout the course of the project. If at any time either of the tripods are moved
and reestablished, a different height may eventuate. It is wise to have a firm pad graded to return
the grader to in order to reestablish the correct blade height.
ECS USER HANDBOOK
Set up Instructions
4
4.1
ECM Setup at the Base Station
Remove the Actuator from the carry case and mount it to the top of the base station tripod with
one of the supplied brackets between the tripod and the actuator base as shown in Figure 3
below.
Note: A Trimble AG25 antenna and Radio antenna are shown for reference only.
Figure 3 Base Station setup with ECM and 900 MHz radio antenna mounting
Mount the Base Receiver or Antenna (depending on the type and style of GPS hardware being
used) to the thread at the top of the Actuator. For Trimble Ag GPS receivers, the Trimble radio
mounting bracket can be placed on top of the Actuator under the base antenna.
Mount the Elevation Control Module to the bracket with the co-axial bulkhead connector facing
up and going through the cutout in the bracket. Fit the 900 MHz Radio antenna connector onto
the bulkhead connector and this holds the ECM in place. You can also mount the ECM to the side
of the tripod with the small bracket as shown in section 4.2 - 900MHz Rover Modem Connection.
Connect the cable with the 3 pin Mil Spec Connector to the panel mount on the bottom of the
Elevation Control Module as shown in Figure 4.
Connect the cable with the 6 pin Mil Spec Connector to the panel mount on the bottom of the
Elevation Control Module as shown in Figure 5.
ECS USER HANDBOOK
Figure 4. Actuator to ECM Connection
ECS USER HANDBOOK
Connect the power cable to the Elevation Control Module as shown in Figure 5 below. Connect
the alligator clips to your power source, red to positive and black to negative.
Figure 5. ECM Power Cable Connection
At this point, the Actuator will cycle, going down first, have a rest for a few seconds and then
move up and stop in the middle of the shaft travel.
The Elevation Control Module has initialized and is ready to start operation.
ECS USER HANDBOOK
4.2
900 MHz Radio Modem connection to Rover
To communicate between the Elevation Control Module and GPS Rover wirelessly, mount the
Rover receiver to the tripod at a suitable distance from the Base Station (from 400 - 2,000
meters) with the supplied bracket between the Rover receiver/antenna and the tripod. Fit the
Rover Module to the small angular bracket using the antenna co-axial connector as the retaining
nut. The bracket then fits into the slot in the top of most tripods as shown in Figure 6.
Connect the Rover Module Power Cable with the 6 soc Mil Spec Connector to the bottom of the
Rover Module housing. Connect the serial cable to the Rover receiver with the appropriate serial
connector (there are two options to choose from).
Connect the alligator clips to a battery. The modem will start transmitting the NMEA data to the
Elevation Control Module from the GPS Rover (refer to your GPS Manufacturer’s User Manual for
the instruction on outputting the NMEA).
Figure 6 The 900 MHZ Rover Module mounted to bracket.
NOTE: The ECM can be mounted in a similar manner.
Indice
