https://github.com/hannesgao/blackhole-ifl

The Blackhole Observer of IFL based on Raspberry Pi 3B and Pi Camera Module
https://github.com/hannesgao/blackhole-ifl

Last synced: 15 days ago
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The Blackhole Observer of IFL based on Raspberry Pi 3B and Pi Camera Module

• Host: GitHub
• URL: https://github.com/hannesgao/blackhole-ifl
• Owner: hannesgao
• Created: 2020-07-10T21:01:01.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2020-07-13T20:13:11.000Z (over 4 years ago)
• Last Synced: 2023-11-12T20:29:21.109Z (about 1 year ago)
• Language: HTML
• Homepage:
• Size: 823 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Blackhole Observer@IFL

The Blackhole Observer of IFL based on Raspberry Pi 3B and Pi Camera Module.

## Hardware

* Raspberry Pi 3 Model B Rev 1.2 with 1GB RAM

* Raspberry Pi Camera Module (I) Rev 2.2

## Network Adapter (MAC-Address)

* eth0: b8:27:eb:47:57:72

* wlan0: b8:27:eb:12:02:27

## Environment

* Raspberry Pi OS (32-bit) with desktop Ver 2020.05

* Webmin Ver 1.953

* Apache Ver 2.4.38 (Raspbian)

* Python Ver 2.7.16

## Maintenance

* Use SSH-Client to do Maintenance manually

* Visit https://[IP Address of the Raspberry Pi in IFL-Intranet]:10000/ to open the Webmin Web-GUI

* Use the Username and Password of Raspberry Pi to login.

## Directory

* Website: /var/www/html/

* Python-Script: /home/pi/blackhole.py

## Auto-Restart after Reboot (Done)

### Python-Script

* Add "sudo python /home/pi/blackhole.py &" before "exit 0" of /etc/rc.local (Done)

* Make sure the rc-local.service is running, use "systemctl enable rc-local.service" to enable it (Done)

* Then the Python-Script for Taking Photos every 5 seconds will run automatically when the Raspberry Pi reboots

### Apache Server

* Done with the same way

***

## Done List

* Front-End Page created and tested

* Raspberry Pi OS updated (SD Card reburned with the newest offical Image) in order to fix Camera Issues

* Webmin, Apache and other necessary software installed

* Auto-Restart Script for Apache Server and Python-Script deployed and tested

* Accessibility and Functionality of the System in Home-LAN tested

## To-Do List

* Link the Raspberry Pi into IFL-Intranet

* Set its Domain Name to http://blackhole.ifl.kit.edu within the IFL-internal DNS System

* Modify Apache Web-Server Configuration, set the Address of this virtuell Server to http://blackhole.ifl.kit.edu

* Test the Accessibility and Functionality of the System in IFL-Intranet

*** 

## Robustness and possible Issues

### By Power Outage

* Abnormal shutdown of the Raspberry Pi caused by a power outage may cause irreversible damage to the file system and operating system, resulting in abnormal booting failure or file damage. 

* This is due to the hardware design problem (no Power-Switch) of the Raspberry Pi and cannot be resolved by software.

* After normal shutdown and restart (e.g. with "sudo shutdown" or "sudo reboot" command) , the Blackhole Observer will start with the operating system and run automatically.

### By short-term Network Problem

* Network problems will not affect the running of the Python-Script and Apache server.

* When there is a network problem, the website may not be accessible.

* After the network is restored, as long as the Raspberry Pi is still running normally, there is no problem with the accessibility and functionality of the website.