Doking mv-4 upgrade
Doking MV-4 upgrade specification.
1. General description: the Doking MV-4 will be given a digital upgrade and a hydraulic and mechanical retrofit. This will include a newly designed and installed electronics, hydraulic and servo Canbus control system, a new console and hand controller. The machines will be examined, completely disassembled and rewired with new control cable assemblies and connectors. Other additions to the machines will include a vehicle pitch and roll feedback system, secure 500m LOS digital wireless hand-control and a new remote portable command console with a nitrogen purged camera system consisting of 2 drive cameras and one pan/tilt system. The project will be completed in three phases:
(a) Phase I: examine system and create proper looming and connector diagrams
Rewire entire system with new cable assemblies and connectors.
(b) Phase II: install a Canbus control system in the Doking MV4
Secure 500M LOS digital wireless hand-control upgrade.
Hydraulic and servo Canbus control system.
(c) Phase III (contingent on successful completion of 80 hrs of field trials):
Remote portable command console and vehicle camera system.
Long range COFDM video and telemetry radios.
Nitrogen purged camera system consisting of 2 drive cameras and one pan/tilt system.
Vehicle pitch and roll feedback system.
Sensor ports for third party sensors, e.g. metal detectors, ground penetrating radar, etc.
2. The Canbus control system (for controller area network) will allow microcontrollers and devices to communicate with each other within the Doking MV-4 without a host computer. CAN is a multi-master broadcast serial bus standard for connecting electronic control units (ECUs). Each node will be able to send and receive messages, but not simultaneously. The devices that are connected by the CAN network will be sensors, actuators, and other control devices. The upgraded Doking MV4 will have a secure 500m LOS digital wireless hand-controller with hydraulic and Servo Canbus control system totally upgrade.
3. (Phase III) Coded orthogonal frequency division multiplexing a multicarrier transmission technique will be used for real time data transmission. The COFDM signal will spread the data to be transmitted over a large number of carriers in the range of 50 –1 000. The carriers will have equal, precisely chosen frequency spacing. The choice of this carrier spacing will ensure orthogonality of the carriers. The signal should have no crosstalk between the carriers as the electronic demodulator for one does not see the other. FFT algorithms will be used for modulating and demodulating hundreds of carriers.
A guard interval will be added to each OFDM symbol when a modulated carrier transmits for a total symbol period which is longer than the active symbol period. This will ensure that any echoes present or any delays which have occurred are not passed onto the receiver once smaller than the guard interval. The forward error correction coding will be closely integrated with the OFDM system. The use of soft decision decoding and the application of channel-state will be used. Once the guard interval is added the symbol-shaping block will interpolate and low pass filters will generate the basic OFDM signal. This will then be up-converted to IF {intermediate frequency} by an I & Q modulator {I meaning in-phase signal, Q meaning quadrature} and then up-converted to RF {Radio Frequency} before being transmitted.
Remote portable command console and vehicle camera system with long range COFDM video and telemetry radios. The system will have nitrogen purged camera system consisting of two Drive cameras and one pan/tilt system. The upgrade will include vehicle pitch and roll feedback system and sensor ports for third party sensors, e.g. metal detectors, ground Penetrating radar, etc.
Note: to register your interest in this notice and obtain any additional information please visit the eTenders web site at
http://www.etenders.gov.ie/Search/Search_Switch.aspx?ID=433452.
Deadline
The time limit for receipt of tenders was 2012-07-02.
The procurement was published on 2012-05-22.
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Procurement history
| Date |
Document |
| 2012-05-22
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Contract notice
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