CST 498 Project Architecture Fall 15 Draft 4 HH

North Carolina Agricultural and Technical State University

Conceptual Teaching and Information Architectures for

CST 498: Fall 2015Howard V. Hardiman, Instructor

Computer Systems Technology DepartmentSchool of Technology


www.ncat.edu

System Architecture Description (IT - 101)

2

Client ServerNetwork


www.ncat.edu

System Architecture Description (Linux in CST 498)

3

Our Basic Server Specs:

Debian Linux 8

• How much disk?• How much RAM?• Came pre installed

with:• This • That • The Third


www.ncat.edu

System Architecture Description (IBM System Z + z/VM Enabled Linux Virtualization)

4

IBM z9 Mainframe (Fort IRC NCAT)LPAR

z/VM 5.4z/VM Guest A

Debian Server VM: Group 1

z/VM Guest BDebian Server VM: Group

2

z/VM Guest N Group N

=Z

Linux Server

Linux on Z


www.ncat.edu

System Architecture Description (High Level Project Description for Whole Class – Data Flow)

5

Debian Linux Guest OS

MySQL DB ServerREST API

PHP Web Apps

Hardware/Sensing/Robotics Vehicle

(IoT)

Mobile Application Clients

Web – Browser Table View

Client

Health Station Client (IoT)

Direct DB Connections/Queries

HTML/HTTP

JSON/HTTP

www/NCAT Domain

Plain - Via URL


www.ncat.edu

Hardware/Sensing/Robotics Vehicle + REST Client

• Raspberry Pi Enabled ‘Tank Style’ Robot• Tank Hack Robot has

GPS and Temperature Sensor

• Client code written in Python to control vehicle using Raspberry Pi GPIO, read sensor values, and initiate http request for data posting

• Students Implemented various cool control capabilities

• Python requests module used for HTTP Request functionality for data creation on remote VM DB

System Architecture Description (Project Team 1 – Temperature/GPS sensing Vehicle- IoT)

6


www.ncat.edu

Mobile Application REST Clients

• Phone Gap Mobile Application • Application area is

building a curriculum viewer that consumes data from a DB with curriculum guides

• Written in HTML, CSS, JavaScript, jQuery, jQuery Mobile, etc.

• MIT AppInventor Mobile App• Similar scope from

above but using AppInventor

• Great intro to creating a data consuming Android App that is a REST Client to High School or Collegiate laymen

System Architecture Description (Project Team 2 – PhoneGap Android Application)

7


www.ncat.edu

Health Station REST Client

• Raspberry Pi Enabled Health Sensor Station• Uses a cool

Arduino board on Raspberry Pi that includes pulse, BP, motion, etc. sensors

• Sensor code written in C

• Python Tkinter application built for GUI control by a user and data sending, receiving, and displaying

• Python requests module used for HTTP Request functionality for data upping and receiving on remote VM DB

System Architecture Description (Project Team 3 – Health Station- IoT)

8


www.ncat.edu

System Architecture (Project Team 4 – Server Side Development )

9

Server Side Needs• Students worked server

side to create 3 MySQL DB’s, REST Interface, and HTML table output of info in DB’s • Project work here

meant to support previous three teams

• REST Interface built using Slim PHP Micro Framework

• Accepts plain text in URL for data upping

• Data returned to the client in JSON

• HTML table application is PHP for tabular output of queries


www.ncat.edu

System Architecture Description (High Level Project Description for Whole Class – Data Flow)

10

Debian Linux Guest OS

MySQL DB ServerREST API

PHP Web Apps

Hardware/Sensing/Robotics Vehicle

Mobile Application Clients

Web – Browser Table View

Client

Health Station Client

Direct DB Connections/Queries

HTML/HTTP

JSON/HTTP

www/NCAT Domain

Plain - Via URL


www.ncat.edu

Hardware/Sensing/Robotics Vehicle + REST Client

System Architecture Description (Project Team 1 – Temperature/GPS sensing Vehicle- IoT)

11

Vehicle Chassis

Motor for Left Wheels Motor for Right Wheels

L298N Digital Motor Driver

6V Battery

Raspberry Pi – Embedded Linux Computer – Powered by 5V Battery

Wifi Dongle (USB)

Bluetooth Dongle (USB)

GPS Sensor (GPIO)

Temperature Sensor (GPIO)

Python Vehicular Control Software

• Keyboard Control via Wifi• Wii Remote Control Via

Bluetooth

Python Sensing and Data Upload Software

• Read GPS + Temp. Sensor and Initiate Request

Raspberry Pi GPIO Header

Software Output Initialization

Motor Control Outputs – 3 per Motor

Motor Control Signals: Forward – Backward - Brake

User Control Commands

Sensed Values

POST RequestsTo Cloud/VM/DB


www.ncat.edu

System Architecture Description (REST functionality for Hardware IoT Team)

12

Debian Linux Virtual Machine

MySQL DB Server (picar)

REST API

1. Process URL/HTT

P request

2. Perform insert query based on

function name and input3.

Return success message

Hardware/Sensing/Robotics Vehicle Applications

Position and Temp.

+ “/addtemp” + ‘/‘+ :vehID + ‘/’ + :tempvalue (POST)

http://restmaster.ncat.edu/slimapi/picar

+“/addposs” + ‘/‘+ :vehID + ‘/’ + :lat+ ‘/’ + :long (POST)


www.ncat.edu

System Architecture Description (REST functionality for Mobile Team)

13


MySQL DB Server

(curricula)

REST API1.

Process URL/HTT

P request

2. Perform select query based on

function name and

params3.

Return results in JSON

to Client Code

Mobile Application Clients Curriculum

Guides and Electives

http://restmaster.ncat.edu/slimapi/mobile/cguide

+“/getGuides” (GET)

+“/getHFA” (GET)+“/getSBS” (GET)+“/getSR” (GET)+“/getTech” (GET)

+“/getGuide” + ‘/‘+ :short_name + ‘/’ + :year (GET)


www.ncat.edu

System Architecture Description (Project Team 3 – Health Station- IoT)

14

https://www.cooking-hacks.com/documentation/tutorials/ehealth-biometric-sensor-platform-arduino-raspberry-pi-medical




www.ncat.edu

System Architecture Description (REST functionality for Health Station IoT Team )

15


MySQL DB Server (health)

REST API1.

Process URL/HTT

P request

2. Perform query based on

function

name/req

type, and input

3. Return results in JSON

to Client Code

Health Station Client

User Encounters

Blood Pressure

http://restmaster.ncat.edu/slimapi/health

+“/getUser” (GET)+“/getBPs” (GET) +“/getPOs” (GET)

Pulse/Oxygen

+“/addUser” + ‘/’+ :fname + ‘/’ + :lname (POST) (User ID Returned)+“/addBP” + ‘/’ + :userID + ‘/‘+ :pulse + ‘/’ + :dia + ‘/’ + :sys (POST) +“/addPO” + ‘/’ + :userID + ‘/‘+ :bpm + ‘/’ + :spo (POST)

CST 498 Project Architecture Fall 15 Draft 4 HH

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