Homerider Systems TRAK Wireless Sensor User Manual Manual Fuel Trak

Homerider Systems Wireless Sensor Manual Fuel Trak

Contents

Manual Fuel Trak

User Manual FUEL TRAK Date : 07/09/2003
Reference : ADH_HRS_FUELTRK_090703 V0.01
Author : Adnane Driouech - Technical Department
State : Validated Page : 1 / 14
Ce document est la propriété exclusive de HOMERIDER SYSTEMS, il ne peut être reproduit ou communiqué sans son autorisation écrite.
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USER MANUAL
FUEL Trak
User Manual FUEL TRAK Date : 07/09/2003
Reference : ADH_HRS_FUELTRK_090703 V0.01
Author : Adnane Driouech - Technical Department
State : Validated Page : 2 / 14
Ce document est la propriété exclusive de HOMERIDER SYSTEMS, il ne peut être reproduit ou communiqué sans son autorisation écrite.
RECORD OF REVISIONS
Revision Details Author Validation Date
V0.01 Release 0.01 BMN YES mm/jj/2003
ABREVIATIONS
CR Call Rider
Module Trak or Call Rider
Serial Number RF address of a module
SIHR HomeRider Server
Trak Metering Equipment
User Manual FUEL TRAK Date : 07/09/2003
Reference : ADH_HRS_FUELTRK_090703 V0.01
Author : Adnane Driouech - Technical Department
State : Validated Page : 3 / 14
Ce document est la propriété exclusive de HOMERIDER SYSTEMS, il ne peut être reproduit ou communiqué sans son autorisation écrite.
CONTENTS
1 INTRODUCTION..........................................................................................................................................................4
2 TECHNICAL SPECIFICATIONS...............................................................................................................................5
2.1 Functional description....................................................................................................................................................5
2.2 Hardware specifications.................................................................................................................................................5
2.2.1 Mechanical specifications ..............................................................................................................................................5
2.2.2 Ambient conditions .........................................................................................................................................................7
2.2.3 Electrical specifications .................................................................................................................................................7
2.2.4 Radio specifications........................................................................................................................................................7
3 RF TRANSCEIVER ......................................................................................................................................................7
3.1 Protocole RF...................................................................................................................................................................7
3.1.1 Presentation....................................................................................................................................................................8
3.1.2 Structure..........................................................................................................................................................................8
3.1.3 Layer description............................................................................................................................................................9
3.1.4 Hardware interface.......................................................................................................................................................10
3.2 Software specifications.................................................................................................................................................11
4 INSTALLATION PROCESS ......................................................................................................................................12
5 PRODUCTION INFORMATION ..............................................................................................................................13
5.1 Components placement.................................................................................................................................................13
6 USER INFORMATION ..............................................................................................................................................14
6.1 Information to user. ......................................................................................................................................................14
6.2 Labelling requirements.................................................................................................................................................14
User Manual FUEL TRAK Date : 07/09/2003
Reference : ADH_HRS_FUELTRK_090703 V0.01
Author : Adnane Driouech - Technical Department
State : Validated Page : 4 / 14
Ce document est la propriété exclusive de HOMERIDER SYSTEMS, il ne peut être reproduit ou communiqué sans son autorisation écrite.
1 INTRODUCTION
The Fuel Trak Module is a system to manage the level of Fuel in a Tank. The module is intrinsic safety and is
designed to operate in explosive area.
The module is powered by a battery that allow 10 years of operation.
Figure 1 : Fuel Trak
User Manual FUEL TRAK Date : 07/09/2003
Reference : ADH_HRS_FUELTRK_090703 V0.01
Author : Adnane Driouech - Technical Department
State : Validated Page : 5 / 14
Ce document est la propriété exclusive de HOMERIDER SYSTEMS, il ne peut être reproduit ou communiqué sans son autorisation écrite.
2 TECHNICAL SPECIFICATIONS
2.1 Functional description
The module Fuel Trak is designed to be installed on a Fuel Tank .
The module read level on the sensor every hour and memorize it.
After 12 hour (12 reading) the module transmit a radio data frame with the level history of the last 12 hours to à
C@llRider®. A C@llRider® is another part of the system that receive the data and then connect to internet and send
the data over the net to the servers.
2.2 Hardware specifications
2.2.1 Mechanical specifications
The electronic part is housed in a specific casing.
Figure 2 : Casing Bottom
Figure 3 : Casing Top
User Manual FUEL TRAK Date : 07/09/2003
Reference : ADH_HRS_FUELTRK_090703 V0.01
Author : Adnane Driouech - Technical Department
State : Validated Page : 6 / 14
Ce document est la propriété exclusive de HOMERIDER SYSTEMS, il ne peut être reproduit ou communiqué sans son autorisation écrite.
Figure 4 : Soleplate
User Manual FUEL TRAK Date : 07/09/2003
Reference : ADH_HRS_FUELTRK_090703 V0.01
Author : Adnane Driouech - Technical Department
State : Validated Page : 7 / 14
Ce document est la propriété exclusive de HOMERIDER SYSTEMS, il ne peut être reproduit ou communiqué sans son autorisation écrite.
2.2.2 Ambient conditions
The module is designed to operate in a temperature range of –20 °C to 60 °C
2.2.3 Electrical specifications
The module is powered by a 3.6 Volts, 2,25 A/hour lithium battery.
2.2.4 Radio specifications
The radio part of the module use the 915 Mhz frequency range.
3 RF TRANSCEIVER
3.1 Protocole RF
The objective of the present chapter is to describe the 915MHz low level protocole used for the Fuel Trak project. The
restrictions are:
FCC part 15
Low power consumption
MSP430 family
ATMEL Transceiver
Range 915 -> 921.3 Mhz
User Manual FUEL TRAK Date : 07/09/2003
Reference : ADH_HRS_FUELTRK_090703 V0.01
Author : Adnane Driouech - Technical Department
State : Validated Page : 8 / 14
Ce document est la propriété exclusive de HOMERIDER SYSTEMS, il ne peut être reproduit ou communiqué sans son autorisation écrite.
3.1.1 Presentation
At the physical level, the standard imposes an even radio power density distribution on the spectrum. The Frequency
hope spread spectrum (FHSS) scheme was retained to achieve it.
The FHSS principal is:
Transmitting on one frequency for a certain time, then pseudo-randomly jumping to another, and transmitting again.
Also, the FHSS could counter-act interference by using different carrier frequency at different time. It's carrier will hop
around within the band so that hopefully it will avoid the jammer at some frequencies.
To synchronize the transmission and reception frequency, in order to prevent lost data, a sync word has been
inserted. Also, to assure completion of all the data, an algorithm of data interleaving and data correction have been
implemented.
3.1.2 Structure
Simplified OSI structure:
------------------------------------------------------------------ HR_Interface
------------------------------------------------------------------ LLC_Interface
------- MAC_Interface
------------------------------------------------------------------ PHY_Interface
2. Data Link Layer
Logical Link Control Layer
Medium Access Control Layer
4. Transport Layer
3. Network Layer
1. Physical Layer
7. Application Layer
6. Presentation Layer
5. Session Layer Not used
Application data
Interleaving + BCH
CRC
Address (ISA/DA)
Network (LF,CF,CI,)
Transmission
Modulation
Manchester
Synchro
Compensation dérive en
fréquence
Frequency hope
User Manual FUEL TRAK Date : 07/09/2003
Reference : ADH_HRS_FUELTRK_090703 V0.01
Author : Adnane Driouech - Technical Department
State : Validated Page : 9 / 14
Ce document est la propriété exclusive de HOMERIDER SYSTEMS, il ne peut être reproduit ou communiqué sans son autorisation écrite.
3.1.3 Layer description
3.1.3.1 Physical layer
The physical layer assures the following:
Modulation
Manchester coding (average energy)
Frequency hope
Synchronization
Compensation of frequency shift due to T° and aging
3.1.3.1.1 Frame structure
The frame is composed of 2 successive “sub-frame” of fixed length:
1/ Beacon sub-frame
The beacon sub-frame is composed of 64 bursts. Each burst consists of 48 chips (24bits). And for
each burst, there’s a frequency hope Î 64 bursts for 64 frequencies.
The beacon burst is composed of a preamble and a long sync word
2/ Data sub-frame
The data sub-frame is composed of 64 bursts. Each burst consists of 48 chips (24bits). And for
each burst, there’s a frequency hope Î 64 bursts for 64 frequencies.
The data burst is composed of a preamble, short sync word and 16 bits of data.
séquence 1 2 3 4 5 61 62 63 64 1 2 3 4 5 61
burst balise
burst donné
fréquence 52 63 3 35 12 27 47 20 33 52 63 3 35 12 27
4
séquence balise séquence donnée
User Manual FUEL TRAK Date : 07/09/2003
Reference : ADH_HRS_FUELTRK_090703 V0.01
Author : Adnane Driouech - Technical Department
State : Validated Page : 10 / 14
Ce document est la propriété exclusive de HOMERIDER SYSTEMS, il ne peut être reproduit ou communiqué sans son autorisation écrite.
Beacon Burst
long sy nc.p 16 chips
T.burst
pream ble 32chips
Data Burst
dat a 16 bit s = 3 2chips
sy nc 8 chips
T.burst
pream ble 8chips
3.1.4 Hardware interface
The module is connected to the Keller sensor by a 6 wire cable. The length of cable is 4 m.
User Manual FUEL TRAK Date : 07/09/2003
Reference : ADH_HRS_FUELTRK_090703 V0.01
Author : Adnane Driouech - Technical Department
State : Validated Page : 11 / 14
Ce document est la propriété exclusive de HOMERIDER SYSTEMS, il ne peut être reproduit ou communiqué sans son autorisation écrite.
3.2 Software specifications
Figure 5 : Software bloc
The principle of the software is to read the sensor every hour and to memorize the value. After 12 hours, the module
activate the radio to send a data frame with the last 12 hours inside. After the system return to sleep for one hour
waiting the time for the next measure.
User Manual FUEL TRAK Date : 07/09/2003
Reference : ADH_HRS_FUELTRK_090703 V0.01
Author : Adnane Driouech - Technical Department
State : Validated Page : 12 / 14
Ce document est la propriété exclusive de HOMERIDER SYSTEMS, il ne peut être reproduit ou communiqué sans son autorisation écrite.
4 INSTALLATION PROCESS
To install the module :
9 Fix the soleplate on the wall with 2 or more screw.
9 After having start the C@llRider® (see C@llRider® documentation)
9 place the magnet during 6 to 10 second to generate an INSTALL data radio frame.
9 Plug the module on the soleplate.
The installation is complete.
User Manual FUEL TRAK Date : 07/09/2003
Reference : ADH_HRS_FUELTRK_090703 V0.01
Author : Adnane Driouech - Technical Department
State : Validated Page : 13 / 14
Ce document est la propriété exclusive de HOMERIDER SYSTEMS, il ne peut être reproduit ou communiqué sans son autorisation écrite.
5 PRODUCTION INFORMATION
5.1 Components placement
PCB TOP
PCB BOTTOM
User Manual FUEL TRAK Date : 07/09/2003
Reference : ADH_HRS_FUELTRK_090703 V0.01
Author : Adnane Driouech - Technical Department
State : Validated Page : 14 / 14
Ce document est la propriété exclusive de HOMERIDER SYSTEMS, il ne peut être reproduit ou communiqué sans son autorisation écrite.
6 USER INFORMATION
6.1 Information to user.
Any changes or modifications not expressly approved by the party responsible for compliance could void the user's
authority to operate the equipment.
6.2 Labelling requirements.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This
device may not cause harmful interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation.

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