PICNIC Demo Module 2IP-based utility outlets

陳育瑋、方煒台大生機系

Objective

Development of a demo module 1. providing utility outlets that can be used for

home appliance capable of locally manual control and remotely on/off control through internet.

2. teaching usage of PICNIC.

3. teaching VB programming.

Software

• Written in Visual Basic v6 (Microsoft, USA)

• Required PICOCX.ocx (Active X 控制項 )

Device

• PICNIC

• SSR: solid state relay

• Relay or utility outlet

Solid State Relay (SSR)

Input terminal

Output terminal

5 types of SSR and popular 3

Type (input V range)

Output V range

DCAC

(3-32VDC)

24-280V AC

ACAC

(80-280VAC)

24-280V AC

DCDC

(3-32VDC)

5-120V DC

3 way and 4 way switch• Three-way-switch is used when providing control in two locations for one home appliance.

• In between 2 three-way-switches, 1 four-way-switch is needed to provide control in 3 locations for one home appliance.

• In between 2 three-way-switches, installing n four-way-switches can provide control in n ＋ 2 locations.

Home appliance

AC 110V

On/off control in 2 locations for one home appliance

AC 110V

On/off control in 3 locations for one home appliance

Home appliance

Home appliance on/off control in 2 locations with one side connect to the internet

PICNIC

Toggle Switch

Home appliance outlet

Relay

B connect

SSR Internet

same outlet from above

Relay

A connect

An example: Lamps control

Control 2 Fans (110

VAC )

Control 8 TFLs (110 VAC )

Relay

Relay

SSR RB4

PIC110V

110V

Demo module ver.1

• Replacing relays with utility outlets• Up to 8 outlets per Picnic• One outlet required one SSR

RB4

Home appliance 1

PIC

110V

110V

RB5

RB6RB7

Outlet#1

SSR#1

To SSR#1

To SSR#3 To SSR#2

To SSR#4

Digital output ports

RB4

Home appliance 2

PICNIC

110V

RB5

RB6RB7

Outlet#2

SSR#2

To SSR#1

To SSR#3 To SSR#2

To SSR#4

Digital output ports

7

6

5

4

5

4

7

6

Problem: The person at remote side needs to know the current status (on or off) of the

home appliance

PICNIC

Toggle Switch

Home appliance outlet

Relay

B connect

SSR Internet

same outlet from above

Relay

A connect

Demo module ver.2

• Modified version of module ver.1• Up to 4 outlets per Picnic• One outlet required 1 SSR and 1 Relay

RB4

Home appliance 2

PICNIC

110V

RB5

RB6RB7

Outlet#2

SSR#2

To SSR#1

To SSR#3 To SSR#2

To SSR#4

Digital output ports

RB0From Relay#2

Relay#2

Digital Input ports

Demo module ver.2

A commercial productIP-relay

• IP Relay is an Ethernet-enabled box containing 1 RS-232 serial port and 2 relays with contacts on a terminal block. The device can be also used as a remote RS-232 serial port (the Virtual Serial Port drives software for windows is free) or as RS232/ethernet converter (terminal server). The remote device can be switched on/off or reset using the ethernet i/o relays.

http://www.hw-group.com/products/ip_relay/index_en.html

http://www.hw-group.com/products/ip_relay/images/IP_Relay_descr_800.jpg

System topology scheme

Usage examples

• Remote monitoring of  IP camera system's failure

• Remote control of the network configuration

• Remote control and restarting of micowawe connections.

• Remote devices control (ventilation, door opening..)

A commercial productI/O Controller

• I/O Controller is a unit containing 8x digital input over ethernet, 8x digital output over ethernet and RS-232/485 serial (Terminal server) interface. All the interfaces are accessible over a network using the M2M (Machine to Machine) protocol on TCP/IP.

http://www.hw-group.com/products/io_controller/index_en.html

Applications examples

• Remote control of technology over RS-232 and RS-485 bus • Remote control of displays and signalling • Remote reading of PIR sensors, door contacts and security

systems • Remote relay control • Industrial I/O • Card readers, RFID readers • Sales machines • Security alarms • Attendance systems • UPS controll and logging • Bar code readers