en:fonctions_de_l_interface

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en:fonctions_de_l_interface [2016/01/19 22:21]
en:fonctions_de_l_interface [2020/07/05 17:13] (current)
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 +FIXME **Cette page n'est pas encore traduite entièrement. Merci de terminer la traduction**\\ //(supprimez ce paragraphe une fois la traduction terminée)//
  
 +{{ :undefined:svxcard_features_1.1.png?direct&600 | Features of SVXCard}}
 +
 +**__The characteristics of the card are the following__**
 +
 +  * Dimensions 150mm x 100mm
 +  * External power supply 12 Volts, regulator on board 5 Volts for Raspberry Pi integer with LM2575 or KIM055 
 +  * 2 radio way repeater (RX and TX) and also one way to transponder or Link by radio
 +  * Audio level ajustement with potentiometers (In/Out)
 +  * Connections to transceivers by pin (Dupont) or by RJ12 connector (6P6C)
 +  * Audio isolation by transformers
 +  * Connect to USB audio cards by stereo audio Jack  or pins (Dupont)
 +  * LED Indicators for PTT and SQUELCH detection 
 +  * Normal or reverse SQUELCH detection selectable by jumper.
 +  * 4 outputs on relays with LED indicators
 +  * 4 digitals inputs
 +  * Protection by opto isolated on digital Input and Output.
 +  * 4 analogs inputs (0-3,3 Volts)
 +  * 2 1WIRE ports,  1 temperature sensor DS1820 on board
 +  * 1 RS232 port
 +  * 2 I2C ports
 +  * External Watchdog with ajustable timer set by solder jumpers.
 +  * 40 pins connection for Raspberry Pi
 +
 +The //SVXLink Card// board supplies the power to the Raspberry Pi thru the 40 pins connector.
 +The recorded consumption of the board //SVXLink Card// are the following ; It's for a configuration with one USB soundcard (RX + TX):
 +  * Standby :   150 mA / 12V (soit 1,8W)
 +  * Transmitting : 200 mA / 12V (soit 2,4W)
 +  * 4 relays switched : 350 mA /12V (soit 4,2W)
 +  * Transmitting and 4 relays switched : 390 mA/ 12V (soit 4,7W)
 +
 +==== Main Features ====
 +  * Repeater controler with Raspberry Pi and [[http://www.svxlink.org/| SVXLink Software]] 
 +     * Squelch detection (Large voltage 2,2V to 12 V) 
 +     * Statuts leds indicators (Squelch, PTT)
 +     * Isolated Audio interfaces with adjustable level for 3 way.
 +     * External power supply between 9 and 12 Volts
 +====Secondary fonctions, options ====
 +  * 4 outputs relays switch 400Vac / 4kVA, with led indicator
 +  * 4 inputs opto isoled
 +  * 4 analogs inputs adjustable (with voltage divider)
 +  * (or) 2 inputs for smeter (signal level receiver)
 +  * Temperature sensor on board
 +  * Protection against unexpected freeze (watchdog for reboot)
 +  * Availability of bus [[https://fr.wikipedia.org/wiki/1-Wire |1-Wire]] (2 connections)
 +  * Availability of bus SPI ([[https://fr.wikipedia.org/wiki/Serial_Peripheral_Interface |Serial Peripheral Interface]])
 +  * Availability of bus [[https://fr.wikipedia.org/wiki/I2C |I2C]] (2 connections)
 +  * Availability of bus [[https://fr.wikipedia.org/wiki/RS-232 |RS-232]])
 +  * Availability of 4 remaining GPIO availables on Raspberry Pi
 +==== Features of repeater ====
 +
 +The installed software is [[http://www.svxlink.org/| SVXLink]] developed by a amateur radio ([[http://www.svxlink.org/| SM0SVX]]). This software manage many functions. The //SVXLink Card// board uses these functions. The configuration of SVXLink is modified or completed to allow using the secondary features of the board:
 +  * Power on repeater, by radio way (DTMF rolling code )
 +  * Smeter from received radio stations 
 +  * Voices announcement of locals measurements
 +    * Temperature of board environment
 +    * Analogs inputs 
 +    * Status of digitals inputs
 +
 +==== But why all this ? ====
 +
 +
 +Here are examples of applications:
 +
 +  * The temperature sensor mesures the repeater cabinet, it could very well activate a thermal resistance to maintain the cavities at good temperature. And transmitting with voice the temperature.
 +  * Possibility to change output repeater power  in low power with switching relay.
 +  * Possibility to switch off power supply to switch in battery mode.
 +  * Analog input can mesure smeter but also for measuring the supply voltage or the battery voltage, a relay may then cutting battery power to preserve them.
 +  * This will connect a LCD / GLCD screen, buttons on the I2C port, a real human/machine interface that will display the repeater states or events.
 +  * Inputs digitals can indicate the 230V power supply or the door of the cabinet status.
 +  * Repeater send by mail every evening a reporting of activity.
 +  * A web page show measurement  and status of inputs/outputs in realtime.
 +
 +You'll understand the possibilities are great and belong to your imagination.
 +==== How SvxLink manages it all ? ====
 +
 +It's very simple, it handles only the PTT and squelch detection switching and audio mixing. It also manages direct radio link or through echolink and voice synthesis.
 +
 +For everything else it's us or you to code. The Linux world will allow all that, for example, repeater display will manage with a small program that will read the LOG file of //SVXLink// and display it on the screen.
 +
 +All state variables or measures can be shared between applications.
 +CRON can enable to schedule scenarios at time, for example sending repeater information an email every day at fixed time of the day.