Jeti MGPS Manual de usuario

INSTRUCTION MANUAL

OF THE GPS SENSOR

MGPS

Published by JETI model s.r.o 3rd May 2010

Instruction Manual: Sensor MGPS

CONTENTS

CONTENTS.............................................................................................................................................2

1. PREFACE..............................................................................................................................................

2. DESCRIPTION......................................................................................................................................

. CONNECTION......................................................................................................................................4

3.1 CONTROL INPUT...............................................................................................................................................................................

3.1.1 V-Cable..............................................................................................................................................................................4

3.1.2 Duplication of a Duplex Receiver Channel........................................................................................................................4

3.2 CONNECTION OF THE MGPS TO THE JETIBOX........................................................................................................................................5

3.3 CONNECTION OF THE MGPS TO THE DUPLEX RECEIVER.............................................................................................................................5

3. CONNECTION OF THE MGPS TO THE DUPLEX RECEIVER VIA AN EXPANDER.......................................................................................................5

4. DATA RECORDING...............................................................................................................................6

5. MGPS MENU.......................................................................................................................................6

5.1 ACTUAL VALUE .....................................................................................................................................................................6

5.2 MIN / MAX ............................................................................................................................................................................7

5.3 SETTING ................................................................................................................................................................................8

5. ALARMS ................................................................................................................................................................................9

5.5 GPS DATA..............................................................................................................................................................................9

5.6 SERVICE.................................................................................................................................................................................9

6. SOFTWARE AND CONNECTION TO THE PC.........................................................................................10

7. INSTALLATION...................................................................................................................................10

8. TECHNICAL DATA ..............................................................................................................................11

9. WARRANTY.......................................................................................................................................11

10. MGPS MENU DIAGRAM...................................................................................................................12

............................................................................................................................................................12

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Instruction Manual: Sensor MGPS

1. Preface

Exact informations about the altitude and distance of a model in space are extremely important

guidance elements for the pilot who is remote controlling the model. Thanks to the GPS satellite

positioning system the MGPS sensor defines the exact model position and calculates speed, altitude

and distance from the point of origin, furthermore the course, a imuth and the total covered distance.

In order to be able to record the measured data the MGPS sensor is equipped with a memory for

approximately 18 hours of uninterrupted data recording with a numerosity of one record per second

(8 MB MGPS version). For a simple analysis of measured data the sensor keeps informations of

minima and maxima which can be browsed with the aid of the JETIBOX. A more detailed analysis of

measured data can be achieved by copying data from the sensor to a PC and map depicted trajectories

or carry out other analysis modes. With the aid of the wireless DUPLEX system actual informations

of the MGPS sensor can be transmitted and depicted in real time by the JETIBOX terminal.

2. Description

There are two triple core cables with JR connectors protruding from the MGPS sensor case. The

cable with the red connector is marked „Control input“ and represents the input for the receiver

generated signal for servo or controler operation. The pulse length of this input is stored by the sensor

into its memory and can be analysed after copying it into a PC memory. The pulse length record can

contribute to a better orientation during data analysis. For instance, if recording a motor control

signal it is easy to find in which position on the map and at what time the motor was switched on or

off.

The cable with the black connector marked „Ext.“ is the sensor communication cable and should be

connected to the DUPLEX receiver input marked „Ext.“ or directly to the JETIBOX. An LED

positioned on the side informs about the state of the sensor signal. In case of GPS signal loss the LED

flashes 1x long and the JETIBOX display reports the loss of the GPS signal. A series of short

consecutive flashes of the LED shows the number of accessible satellites.

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Instruction Manual: Sensor MGPS

3. Connection

3.1 Control Input

If we want the sensor MGPS to record pulse lengths it is advisable to use one of the following

methods.

3.1.1 V-Cable

Connect the V-cable to the receiver, one of the two ends for example to the regulator,

servo etc. and the other end to the MGPS input marked as Control input.

3.1.2 Duplication of a Duplex Receiver Channel

The Duplex receiver shall be adjusted so that it generates a copy of the requested channel

at a free exit. Connect one exit for example to the regulator or servo and the Control input

of the MGPS sensor to the duplicated exit.

Receiver set up for duplication of one channel to two exits. Let us asume that we want to

duplicate the throttle channel (1st channel). The channel should e duplicated to exit # 5.

Connect the JETIBOX to the receiver by a cable to the input marked EXT, or by radio

with the aid of the transmitter module. After switching on the JETIBOX monitor shows

the introductory display with the description of the receiver, for instance Duplex R6 (1).

Continue by pressing the arrow down button to the menu MesureOrSettin item

Measure (2). Continue by pressing the right arrow button till to item Out Pin Set (4) and

then press the down arrow button. You have arrived in menu Set Output Pin (5). Set Y5

by pushing the right arrow button and continue by pressing the down arrow button to

SetInChannel Y5 (6). In this menu set CH1 by pressing the left arrow button.

If you do not want to use recordin of pulse len ths, do not connect Control input!

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Instruction Manual: Sensor MGPS

3.2 Connection of the MGPS to the JETIBOX

This connection requires the application of a voltage source of 3,5 to 8,4V, for instance a

receiver attery. The triple core MPGS sensor cable with black JR connector must be

connected to the JETIBOX (socket marked Impuls, + - ). When using the JETIBOX mini

apply the input socket marked „Ext.“ This connection does not allow generation of acoustic

alerts due to the absence of the signal bu er, which is part of the in this instance not connected

transmitter module. Alerts are depicted on the JETIBOX display only.

3.3 Connection of the MGPS to the DUPLEX receiver

In this case only one sensor with power supply via the receiver can be connected. The triple

core MGPS sensor cable with black JR connector must be connected to the DUPLEX

receiver (to the input marked EXT.). Connection of Control input see chapter 3.1.

3.4 Connection of the MGPS to the DUPLEX receiver via an Expander

Using this configuration it is possible to process data from several sensors simultaneously with

power supply via the expander. The triple core MPGS sensor cable with black JR connector

must be connected to one of the Expander inputs. Connection of Control input see chapter

3.1.

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Instruction Manual: Sensor MGPS

4. Data Recording

The MGPS sensor is manufactured with 4 or 8MB high capacity memories for data recording. The

MGPS sensor with 4MB memory offers a data storage capacity of 32 768 savings or a capacity of

1024 records corresponding approximately to nine hours of uninterrupted recording with the

numerosity of 1x per second savings or 1024 switching on operations. The storage numerosity can be

set up in the menu „SETTING->Record Period“. The MGPS can be read out and analysed by a

computer. When switched on the sensor starts automatically storin data as lon as the si nal

of the GPS satellites is of sufficient quality. That means that the number of available GPS satellites

must be at least 5 or more. The informations in the sensor memory are arranged into entries

(Records), which are supplied with identification numbers (ID) according to the succession of

formation. After every switchin on and fulfillment of the condition of a sufficiently good signal the

sensor automatically creates a new record file and starts to store the measured data into it. If

accidentally the complete memory becomes filled the data starts overwriting oldest records and in the

menu „ACTUAL VAL -> Record ID Mem Usage“ the utili ation of the memory will be indicated by

hundred percent. For etter clarity of records we recommend to store the memory after it has een

filled up into a PC and then delete it y „SETTING->Erase GPS log“.

5. MGPS Menu

Parameter set up and data readout is carried out by the JETIBOX. After connection to the MGPS

sensor the introductory display shows the identification of the equipment and three assigned positions

for the portrayal of actual data. In the given positions there can be adjusted up to five combinations of

quantities like: speed, altitude, distance and covered path. By pressin the ri ht arrow button in

the introductory display for a fairly lon time renders it possible to arran e data as shown in

the followin picture.

By pressing D (down arrow) of the JETIBOX you will enter into the MGPS menu.

5.1 ACTUAL VALUE

MGPS MENU: Actual Value – by pressing button D (down arrow) you will select the display

of actual measured values

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Instruction Manual: Sensor MGPS

Distance/Speed – shows the distance of the model from the point of origin (ORIGIN) and its

actual speed.

Trip/Speed – shows the covered path from the last eroing/switching on point and the actual

speed.

Course/Dist/Alt – shows the actual model heading, distance and altitude from the origin.

The heading (course) is the angle etween the trajectory of model motion and the direction to

the north pole. This information may e extremely important if you want to know the direction

of model motion.

Azimuth/Dist/Alt – shows the actual model a imuth, distance and altitude in relation to the

origin.

Azimuth is the angle with its vertex in the point of origin (ORIGIN) formed etween the model

and the north pole. The information a out the azimuth may e helpful in case of a model loss.

The pilot owns informations a out the model position.

Date/Time – depiction of date and exact time.

GPS Status – depiction of the number of accessible GPS satellites and of the input voltage

level.

Record ID and Mem Usage – succession of records and memory utili ation. After switching on

collection of data starts in a new record, see chapter Chyba: droj odka u nenale en.

5.2 MIN / MAX

MGPS MENU: MIN / MAX – by pressing button D (arrow down) you select record depictions

of altitude extremes, distance extremes and speed extremes which occurred during operation.

The record of extremes is deleted automatically or can be deleted manually in the menu

Setting - Erase Min/Max. If the sen or will be connected to a voltage supply under fulfillment

of conditions shown below, automatic deletion of minimum and maximum values will occur.

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Instruction Manual: Sensor MGPS

•The number of accessible GPS satellites is at least 5 or more,

•The actual speed will for the duration of five seconds be higher than 10km/h.

In case of sensor switching on without fulfilling the conditions mentioned above, minimum and

maximum values of the preceding sensor operation will be depicted.

Altitude Min/Max – shows minimum and maximum altitude.

Maximal Distance – shows maximum distance of the point of origin (ORIGIN).

Maximal Velocity – shows maximum speed.

Last trip – shows value of covered path before sensor switching off.

5.3 SETTING

MGPS MENU: SETTING – by pressing button D (arrow down) a change to the basic setting of

the MGPS sensor will be carried out.

StartNewRecord – by simultaneous pressing of arrows R and L (right and left) a new record in

the memory is created and storing of new data gets started.

Set Origin – by simultaneous pressin of arrows R and L (ri ht and left) a new ori in is

created and simultaneously minimum and maximum values are deleted. Adjust the origin

only if there are at least 5 or more GPS satellites accessible. Origin set up is very important for

correct measurements of actual sensor values like distance and altitude. These values are

derived from the origin.

After arrival at the flying field switch on the MGPS, wait until reception of GPS satellites

develops good quality and set up the origin. The sensor keeps the information of the origin in

its memory, therefore you do not have to set it everytime you are switching the sensor on as

long as you stay within the flying field region.

Erase Min/Max – by simultaneous pressing of arrows R and L (right and left) minimum and

maximum values are deleted.

Erase GPS log – by simultaneous pressing of arrows R and L (right and left) the complete

sensor memory becomes erased.

Record Period – numerosity of storing measured data into memory. With the aid of this set up

you may lengthen or shorten the recording time.

Altitude Alarm Code – setting of the Morsealphabet letter which will represent exceeding of the

adjusted altitude margin by an acoustical alert tone of the transmitter module DUPLEX Tx.

Distance Alarm Code – setting of the Morsealphabet letter which will represent exceeding of

the adjusted distance margin by an acoustical alert tone of the transmitter module DUPLEX Tx.

Velocity Alarm Code – setting of the Morsealphabet letter which will represent exceeding of the

adjusted speed margin by an acoustical alert tone of the transmitter module DUPLEX Tx.

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Instruction Manual: Sensor MGPS

Velocity unit – setting of the unit of measured velocity.

Set Timezone – setting of the time shift in relation to the Greenwich prime meridian.

5.4 ALARMS

MGPS MENU: ALARMS – by pressing pushbutton D (arrow down) you change to the setting

of individual alerts. If one of the set parameter mar ins will be violated, the JETIBOX will

show in the second line of its introductory display in turns the ori inal picture and the

correspondin alert as well as the transmitter module siren will emit the correspondin

sound alert. The first tone is a cautionary sound and the second one represents the

Morsealphabet letter of the corresponding alert. As long as the alarm is set to OFF this alert

will be switched off.

Altitude Alarm – setting the value of the altitude alert. If the measured altitude oversteps the set

value the altitude alert will be activated.

Distance Alarm – setting the value of the distance alert. If the measured distance oversteps the

set value the distance alert will be activated.

Speed Alarm – setting the value of the speed alert. If the measured speed oversteps the set value

the speed alert will be activated.

5.5 GPS DATA

MGPS MENU: GPS DATA – by pressing button D (arrow down) you will change to the

depiction of actual informations about coordinates and altitude above sea level.

GPS Latitude – coordinates of terrestrial latitude of the actual position.

GPS Longitude - coordinates of terrestrial longitude of the actual position.

GPS Altitude – altitude above sea level of the actual position.

GPS Timestamp – exact time at the ero meridian in the format: HHMMSS.SS.

5.6 SERVICE

MGPS MENU: SERVICE – by pressing button D (arrow down) you will change to depiction of

the firmware version and to renewal of the sensor default setting.

Factory Defaults – by simultaneous pressing of arrows R and L (right and left) the factory

settings of the MGPS are loaded.

MGPS v. xx.xx ID xxxxx:xxxxx – product marking with firmware version and series number

(ID).

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Instruction Manual: Sensor MGPS

6. Software and Connection to the PC

The USBa adapter is used for connection of the MGPS to the PC and for data transfer. The USBa

adapter is connected to the USB port of a computer (1) and the input Ext. of the MGPS sensor

is plu ed into the adapter (2). The equipment gets its power supply via the computer, there are no

other power sources necessary.

The last step consists of the service program start and data storing in the PC. The MGPS service

software is available on the manufacturer internet pages www.jetimodel.com in the technical support

section.

. Installation

The MGPS sensor is equipped with an GPS antenna, it is therefore important to place the sensor in a

suitable position in the model. It must lie hori ontal with the sticker turned upwards to the sky and

must not be screened by any conductive materials. The GPS signal passes through non conductive

materials like: plastic, wood, but does not pass through conductive materials like: carbon, metals.

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