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iotcat
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5 years ago | |
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| .img | 5 years ago | |
| LoRa_plan.md | 5 years ago | |
| README.md | 5 years ago | |
| nearPLAN.md | 5 years ago | |
README.md
Architecture Plans
WIFI PLAN1
System Architecture
Devices
- Raspberry Pi
- VPS
- NodeMCU
- WiFi Router
- ESP8266 /ESP-01/ 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
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 (￥1000)
- Few Community Support
- Hard to purchase in market
WIFI PLAN2
System Architecture
Devices
- Raspberry Pi
- VPS
- NodeMCU
- WiFi Router
- ESP8266 / ESP-01 / 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
Devices
- Raspberry Pi
- VPS
- NodeMCU
- WiFi Router
- ESP8266 / ESP-01 / 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
Devices
- VPS
- NodeMCU
- WiFi Router
- ESP8266 / ESP-01 / 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
Devices
- Raspberry Pi
- NodeMCU
- WiFi Router
- ESP8266 / ESP-01 / 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 | Safety | intranet MQTT | Network Complexity | Access from Internet |
|---|---|---|---|---|---|---|---|---|---|---|---|
| WIFI1 | Low | Easy | Low (Deep Sleep) | Big | Unknown | unknown | Support | Good | Support | 5 | Support |
| LoRa1 | Relativly High | Hard | Very Low | Small | Good | 10+km | Support | Perfect | Support | 3 | Support |
| WIFI2 | Low | Easy | Low (Deep Sleep) | Big | Unknown | ok | Support | Good | Support | 4 | Support |
| WIFI3 | Low | Easy | Low (Deep Sleep) | Big | Unknown | ok | Support | Good | Support | 4 | Support |
| WIFI4 | Low | Easy | Low (Deep Sleep) | Big | Unknown | unknown | Support | Good | Not | 4 | Support |
| WIFI5 | Low | Easy | Low (Deep Sleep) | Big | Unknown | unknown | Support | Good | Support | 4 | Not |