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--- nyan:goals [2023/10/22 07:30] – river
+++ nyan:goals [2023/12/11 11:44] (current) – river
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-{{tag>[nyan]}}
 **Document status: Early ideas, subject to change.**
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 To be implemented with a LoRa mesh network.
-==== Purpose and applications of the system ====
+===== Purpose and applications of the system =====
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   * Storm / high seas / anchor alarms.
-==== Onboard Device Specification ====
+===== Onboard Device Specification =====
   * Small, discrete device that can be installed behind a panel.
@@ Line 42: / Line 41: @@
   * Possibly: Builtin battery. Important for tracking if boat stolen and power is disconnected.
-=== Interfaces ===
+==== Interfaces ====
-  * Supplied standalone wind instrument interface - probably NMEA0183, NMEA2000, or RS485. Possibly wireless. (and/or analog interface for e.g. https://www.sparkfun.com/products/15901 )
+  * Wind instrument interface for sensors that may be supplied with the device - probably NMEA0183, NMEA2000, or RS485. Possibly wireless or wired analogue for cheaper sensors.
   * NMEA receive interface for GPS (needed if cannot be installed where internal GPS works).
   * LoRa antenna socket? (I think needed for the same reason, if installed below decks on a metal boat)
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   * Other sensors, e.g. air quality, humidity, fog, CO2, intruder alarm system. Possibly serial (CAN, RS485) or wifi / IP.
-=== UI ===
+==== UI ====
   * Display own and other boats' sensor readings on a map.
   * Send and receive text messages.
-==== Other Possible Devices ====
+===== Other Possible Devices =====
-=== Base Station ===
+==== Base Station ====
-  * Connects to lora network.
+  * Connects to LoRa network.
   * External antennas
   * Internet linking with ethernet or wifi
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   * Doesn't need NMEA / boat network interfaces. Maybe connects to weather station though.
-=== Panel mount UI ===
+==== Panel mount UI ====
   * Could be like navtex with weather reports, or a map.
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   * Maybe keyboard or touchscreen.
-=== Portable radio ===
+==== Portable radio ====
 For monitoring an anchored boat when you are ashore. Take with you in dinghy.
-==== LoRa Network Design ====
+===== LoRa Network Design =====
   * Messages should be forwarded between boats to extend range
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   * Addressable messages (maybe not needed at first, ie for simplicity treat everything as public broadcast)
-==== Investigate ====
+===== Investigate =====
-  * Existing weather reporting systems. e.g. Met Office Voluntary Observing Ships. Can we gather data for this? (https://www.metoffice.gov.uk/weather/learn-about/how-forecasts-are-made/observations/marine-observations)
+  * Use of satellites to extend range?
-  * cf. Shipbourne Automatic Weather Station (AWS) - Met Office supplied device with Iridium uplink.
-  * Voluntary Observing Ship Scheme - http://sot.jcommops.org/vos/index.html
-  * Can observations of sufficient accuracy for weather modelling be taken from small boats? What about sea temperature, salinity, turbidity?
-  * Use of amateur satellites?