arch

README.md

@@ -1,6 +1,16 @@
 # surf-iots
 Sharing and Record for surf..
 
+## Design Objetives
+
+ - Available
+ - Relabile
+
+## Challenges
+
+ - Waterproof
+ - Low Power
+
 ## Reading Materials
 
 ### MQTT
@@ -12,12 +22,12 @@ Sharing and Record for surf..
 
 ### LPWA
 
- - []()
+ - [loraserver](https://www.loraserver.io/)
 
 
 ### MCU
 
-
+- []()
 
 
 ### Sensors

materials/architecture/README.md

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+# Architecture Plans
+
+## WIFI PLAN1
+
+### System Architecture
+
+![WIFI-PLAN1](./.img/WIFI-PLAN1.png)
+
+### Devices
+ - Raspberry Pi
+ - VPS
+ - NodeMCU
+ - WiFi Router
+ - ESP8266 / D1 MINI / NodeMCU
+
+### Features
+ - Provide HTTP and Websocket API (Easy for App and Website Dev)
+ - Provide History Data Access
+ - API can be accessed from Internet
+ - Ground Sensor network is flexible
+ - Ground Sensor Network is low power
+ - A NodeMCU collect data from air sensors and Ground Sensor Network and publish them through MQTT
+ - The Cloud Server subscribe sensors through MQTT
+ - The Cloud Server publish command through MQTT
+ - The NodeMCU subscribe command subject through MQTT
+
+### Advantages
+ - Devices Easy to buy
+ - Community support
+ - Make full use of Existing Devices
+ - Most of us are already familiar with WiFi and ESP8266
+ - Cheap
+
+### Shortages
+ - WiFi is a HIGH Frequency Tech and may not suitable for farming iot
+ - Cellular network may be unstable when there are huge number of nodes
+ - Energy Comsumption is still a problem
+ - Few papers for ESP8266 in Cellular Network
+
+## LoRa PLAN1
+
+### System Architecture
+
+![LoRa-PLAN1](./.img/LoRa-PLAN1.png)
+
+### Devices
+ - Raspberry Pi
+ - VPS
+ - LoRa Gateway
+ - LoRa Clients
+
+
+### Features
+ - Work on low frequency
+ - LoRa Eco perfectly support MQTT
+ - Can be implemented in real farms
+
+### Advantages
+ - Low Power
+ - Stability had been proved
+ - Cheap client Module
+ - 10km+ effective radius
+
+### Shortages
+ - Cost a lot for buying LoRa Gateway
+ - Few Community Support
+ - Hard to purchase in market
+
+## WIFI PLAN2
+
+### System Architecture
+
+![WIFI-PLAN2](./.img/WIFI-PLAN2.png)
+
+### Devices
+ - Raspberry Pi
+ - VPS
+ - NodeMCU
+ - WiFi Router
+ - ESP8266 / D1 MINI / NodeMCU
+
+### Features
+ - Ground Sensor Network works as chains
+
+
+### Advantages
+ - Easy to develop
+ - High Communicating Efficiency
+
+### Shortages
+ - One node offline can cause one chain offline
+
+
+## WIFI PLAN3
+
+### System Architecture
+
+![WIFI-PLAN3](./.img/WIFI-PLAN3.png)
+
+### Devices
+ - Raspberry Pi
+ - VPS
+ - NodeMCU
+ - WiFi Router
+ - ESP8266 / D1 MINI / NodeMCU
+
+### Features
+ - Ground Sensor Network works as branch
+
+### Advantages
+ - Good Communicating Efficiency
+ - Easy to manage nodes
+
+### Shortages
+ - One node of main branch offline can cause whole network offline
+
+
+## WIFI PLAN4
+
+### System Architecture
+
+![WIFI-PLAN4](./.img/WIFI-PLAN4.png)
+
+### Devices
+ - VPS
+ - NodeMCU
+ - WiFi Router
+ - ESP8266 / D1 MINI / NodeMCU
+
+### Features
+ - NodeMCU directly connect to a MQTT Cloud Server
+
+### Advantages
+ - No Internet Through Problem
+ - Easy to manage
+
+### Shortages
+ - Rely on the internet condition
+ - Relatively high time-delay for intranet request
+
+
+
+## WIFI PLAN5
+
+### System Architecture
+
+![WIFI-PLAN5](./.img/WIFI-PLAN5.png)
+
+### Devices
+ - Raspberry Pi
+ - NodeMCU
+ - WiFi Router
+ - ESP8266 / D1 MINI / NodeMCU
+
+### Features
+ - All devices Local
+ - No Cloud Support
+
+### Advantages
+ - Safe
+ - Quickly respond to local request
+
+### Shortages
+ - Difficult to develop web service
+ - Only support local access
+
+
+# Comparation
+
+Plan | Cost | Purchase | Energy Consumption | Community | Communication Quality | Effective Radius | History Data | Web Dev
+---- | ---- | ---- | --- | --- | --- | --- | --- | --- | ---
+WIFI1 | Low | Easy | Low (Deep Sleep) | Big | Unknown | Small | Support | Support
+LoRa1 | Relativly High | Hard | Very Low | Small | Good | 10+km | Support | Support

materials/connectivity/README.md

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+# Communication Selections
+
+## Cellular
+
+
+## LoRa
+
+
+## WiFi
+

materials/papers/README.md

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+# Smart Farming Paper Classification
+
+## [手机，蔬菜，传感器网络，灌溉控制](https://ieeexplore.ieee.org/abstract/document/7042670)
+
+### 观点
+ - 环境要素: 温度，空气中的水分，土壤水分（地下水的漏水流出速度）[8]和土壤PH
+ - 传感器状态，按需打开
+
+### 通信系统架构
+
+ - TinyOS或微控制器（MCU）和ZigBee（XBee）