EE 595

1
Capstone Design Project EE 318-595 Spring
2004 Design Team No. 1 Security Dialer
Eric Biehr Mario Divis Igor Stevic Edwin
Sofian Kelly Chapin
2
Design Team Members
Mario Divis
Kelly Chapin
Edwin Sofian
Igor Stevic
Eric Biehr
3

• Security Dialer Project Selection

• This design is favored because it offers
  individual challenges to each team member, is
  easily scalable and covers many electrical design
  aspects as well as project requirements.
• Major risks include exceeding the projected
  budget and over-scoping of project blocks.
• Other projects were rejected because they were
  not complex enough to satisfy high level
  requirements.
• This project was unanimously supported by all
  team members.

4

• Product Definition

• Automated home security monitoring system
• Emergency status notification through phone line
• Internet status monitoring including remote
  control of the system
• CO monitoring, door or window opening, standing
  water sensor and AC power failure notification
• Backup DC battery in the event of AC power
  failure
• Audible alarm in case of an emergency

• The home security system is a common product on
  the
• market but the internet and phone access makes
  it unique
• This product belongs to a general consumer
  products/home
• security industry

5
Standard Requirements

• Major competitors include ADT, Brinks, CyberEye
  and GE
• Annual volume of 5000 units
• To be sold to North American home owners
• Installation intended by user or contractor,
  distributed by retailers
• Intended purpose is for life and asset protection
  
• Indoor use only
• Temporary 60Hz 120VAC power supply with permanent
  12VDC rechargeable reserve battery
• Stainless steel prototype enclosure
• 12 months replacement warranty
• Recycle product according to government
  regulations
• Product Life of 100,000 Hours MTBF

6
Standard Requirements Minimum Maximum
Operating Temperature Range (C) -10 50
Operating Humidity Range (Rh) Non-condensing 0 85
Operating Altitude Range (meters) 0 8,000
Storage Temperature Range (C) -20 50
Storage Humidity Range (Rh) Non-condensing 0 90
Storage Altitude Range (meters) 0 13,000
Storage Duration (years)   5
Product Weight (lbs)   14
Product Volume (cm³)   27,000
Shipping Package Volume (cm³)   32,000
Operational Drop _at_ 3 meters (G)   1
Vibration and Shock (G)   10
Power Consumption (Watts)   25
Product Cost ()   220
Prototype Cost ()   600
List Price () 350  
Parts Count   100 
Unique Parts Count   40 
PC Board Count 1 3
PC Board Area (cm²)    500
7
Performance Requirements

• Armed and Standby operational modes
• LCD output displaying status indication and user
  menu
• Viewable within 1 meter
• 20 x 4 character display
• Backlight option for increased visibility
• 16 key Alpha-Numeric Keypad for user operation
  and functionality
• Panasonic Omni-directional Electret Microphone
• Audible siren gt100dB
• External electrical interfaces
• RJ11 phone line output
• RJ45 Ethernet connection
• AC standard 3-prong Nema input
• Three 3mm single row 2 and 3 pin Molex sensor
  input connectors

8
Performance Requirements

• Unique components
• Atmel AVR AT90S8515 microprocessor
• Winbond ISD2560 voice recording chip
• Holtek HT93214A dialer chip
• Clare M98202 Precise Call Progress Tone Detector
• Sena Technologies Ethernet controller and web
  server

9
Safety Regulation Requirements

• Federal Communications Commission
• Part 68
• Governs the direct connection of terminal
  equipment to the Public Switched Telephone
  Network
• Contains rules concerning for automated dialing
  machines
• Underwriters Laboratory Standards
• UL639
• Intrusion-detection units intended to be used in
  burglary-protection signaling systems
• UL1023
• Household burglar-alarm system units
• UL1950
• Mains-powered or battery-powered information
  technology equipment
• Canadian Standards Association
• CSA C22.2 No. 205
• Signal equipment
• CSA C22.2 No. 60950
• Information technology equipment

10
Electromagnetic Compatibility Standards

• EN50081-1 1992
• Generic emission standard, part 1 residential,
  commercial
• and light industry
• EN50082-1 1997
• Generic immunity standard, part 1 residential,
  commercial
• and light industry
• EN55022 CISPR 22
• Emission requirements for information technology
  equipment
• EN55024 CISPR 24
• Immunity requirements for information technology
  equipment

11
EMC Test Requirements
Specific EMC Requirements Test Description Limits
CISPR 22 Class B Radiated Emissions 30dBuV/m at 30 to 230 MHz, 37dBuV/m at 230 to 1 GHz
CISPR 22 Class B Conducted Emissions 46 dBuV at 0.5 to 5 MHz, 50 dBuV at 5 to 30 MHz
MIL-STD-461E, RE101 Magnetic emissions 7 cm for 30 Hz to 100 kHz
IEC 61000-4-2 ESD immunity 6 kV direct, 8 kV air (minimum)
IEC 61000-4-3 Radiated immunity 3 V/m for 80 to 2500 MHz , modulated at lt10 Hz and 1 kHz
IEC 61000-4-4 Fast Transient immunity 2 kV power lines, 1 kV I/O lines gt 3 meters
IEC 61000-4-5 Fast Surges immunity 1 kV (differential), 2 kV (common mode)
IEC 61000-4-6 Conducted immunity 3 V, 150 kHz to 80 MHz, modulated at lt10 Hz and 1 kHz
IEC 61000-4-8 Magnetic immunity 3 A/m at 50/60 Hz
IEC 61000-4-11 Voltage variations 10 ms, 100 ms, 500 ms, 2 s 0, 40 and 70 of input voltage
IEC 61000-3-2 Harmonics Emissions  Per Standards
IEC 61000-3-3 Flicker Emissions Per Standards
12
Power Supply
5V
Edwin Eric Igor Kelly Mario
VAC
VDC
12V
3
Phone Line
Siren
Ringback Detection
Dialer
6
10
9
Embedded Ethernet Controller /Web Server
Micro-controller
Voice Recording
Internet
Microphone
1
7
8
7
LCD
Keypad
Sensors
2
4
5
13
Project Gantt ChartDefinition Phase
14
Project Gantt ChartProductization Phase
15
Project Gantt ChartPrototype and Validation Phase
16
Power Allocation Table
Components DC Voltage (V) DC Voltage (V) DC Voltage (V) Maximum Current (mA) _at_ Nominal Voltage
Components Minimum Maximum Nominal Maximum Current (mA) _at_ Nominal Voltage
Siren 4 18 12 1000
CO sensor 4 14 5 15
Door/Window sensor 4 14 4 15
Water sensor 4 14 4 40
Keypad 4 6 5 5
Ringback Detection 3 5 5 15
Web Server 4.5 5.5 5 300
Dialer 2 5.5 2.5 70
Voice Chip 4.5 5.5 5 45
Microcontroller 4 5 5 40
Battery Charger 13.5 15 13.65 300
LCD 4.5 6 5 500
Total Maximum Current       2345
17
Power Supply Performance Requirements

• Power Source Inputs
• Temporary 603Hz 12010/-15VAC power using
  standard 3 prong detachable 67 Nema plug
  connecting to IEC 320 AC receptacle with external
  5 x 20 mm fuse holder for consumer accessibility
• Permanent reserve 12VDC 7.2Ahr 86.4Watt-hrs
  maintenance-free rechargeable AGM sealed
  lead-acid battery (5.5 lbs)

Regulated Output DC Voltages Regulation Type Input Voltage Tolerance (DC) Input Voltage Tolerance (DC) Input Voltage Tolerance (DC) Output Voltage Range (DC) Output Voltage Range (DC) Efficiency
Regulated Output DC Voltages Regulation Type Minimum Maximum Nominal Minimum Maximum Efficiency
18V Linear 21 30 24 17.2  18.8 gt70
13.65V Linear 16.65 20 18 13.2 14.2 gt70
12V Linear 15 20 18 10.6 12.6 gt70
5V Switching 8 14.4 12 4.75 5.25 gt85
18
Power Supply Performance Requirements

• AC and DC powered modes
• Transistor and diode switching circuit routes
  power from DC battery if AC power source fails
• Logic signal (VOH 3 to 5.5VDC, VOL 0 to 1.5V
  Io 40mA max)
• sent to microprocessor and web server to display
  notification on
• LCD and security web page when operating in DC
  powered mode
• Interfaces
• Mechanical
• AC input line cord
• Electrical
• Voltage input from AC source and DC battery
  source
• Voltage outputs to system components with 3 pin
  connector
• Switching frequency gt 200kHz
• Voltage Ripple and Noise lt 50mV
• Load Regulation lt 5 for 30 load change
• Line Regulation lt 5 for 15 line voltage change

19
Power Supply Block Diagram
Microcontroller Web Server Logic Signal 40mA
60Hz 120VAC
VOH5V, VOL0.7V
Siren 1A
Microcontroller 40mA
24VAC Transformer, Rectifier Voltage
Regulator
Voltage Regulator
Switching Regulator
Power Mode Detection Switching Circuit
Dialer 70mA
Voice Chip 45mA
18VDC 3A
5VDC 1A
12VDC 2.5A
12VDC 2.5A
LCD 500mA
Web Server 300mA
Keypad 5mA
Ringback Detection 15mA Sensors
70mA
DC battery 12V 7.2Ahr
Voltage Regulator Battery Charger
13.65VDC 300mA
20
Power Supply Standard Requirements Minimum Maximum Allocation
Operating Temperature Range (C) -10 60  
Operating Humidity Range (Rh) Non-condensing 0 85  
Operating Altitude Range (meters) 0 10,000  
Storage Temperature Range (C) -40 70  
Storage Humidity Range (Rh) Non-condensing 0 95  
Storage Altitude Range (meters) 0 13,000  
Reliability MTBF (years) 4
Storage Duration (years)   5  
Product Weight (lbs)   9 80
Product Volume (cm³)   16,200 60
Operational Drop _at_ 3 meters (G)   2  
Vibration and Shock (G)   10  
Prototype Cost ()   75 13
Production Cost ()   40 13
Parts Count   30 30
Unique Parts Count   15 30
PC Board Count   1  
PC Board Area (cm²)   200 30
21
Power Supply EMC, Safety Standards and Disposal

• Electromagnetic Compatibility Standards
• EN 61204-32000
• Low voltage power supplies with DC output
• EN 50081-11992
• Generic Emission Standard for residential,
  commercial and light industry
• EN 50082-11997
• Generic Immunity Standard for residential,
  commercial and light industry
• Safety Regulation Standards
• UL 603
• Power supplies for use with burglar-alarm systems
• UL 1236
• Battery chargers for charging engine-starter
  batteries
• Recycle materials according to city/government
  regulations

22
Power Supply Safety Devices

• UL compliant molded AC line cord and IEC 320
  Receptacle
• External 3A fuse within IEC 320 receptacle to
  provide over-current protection
• 145V Varistor to provide suppression of transient
  voltage
• Properly rated self-resetting fuses used
  throughout circuitry to provide over-current
  circuit protection
• Diodes to protect voltage regulators and DC
  battery from voltage polarity reversal
• Transformer provides electrical isolation between
  AC source and system

23
Power Supply Gantt Chart 1 of 2
24
Power Supply Gantt Chart 2 of 2
25
LCD module Performance requirements

• The LCD module displays the status of the whole
  system.
• A user will be presented a menu with choices of
  what action/instruction a user wants to take
  regarding configuration/setup and arming the
  system
• When a certain choice has been made a visual
  display of the chosen option will be shown along
  with all the information related to the choice
• A backlight will light up every time a user
  pushes a key on the keypad
• A screen will be able to display at least 60
  characters
• A module will have a Hitachi 44780 compatible
  driver chip
• Inputs
• Data lines
• 5V DC(/-10) power supply for driver and
  backlight, 1A Max
• Interfacing through pin header

26
20x4 LCD module
GND
LCD Contrast adjust
4.5 lt Vddlt 6.5 V
Vmax 6.5 V Imax 1mA

Backlight power
-
8/4 bit data bus
3 bit control line
Vih min 2.2 V Vih max Vdd Vil min 0 V Vil
max 0.6 V
27
LCD module Standard requirements

• Operating Temperature -10 to 50C
• Operating humidity 0 to 85 RH,
  non-condensing
• Storage temperature -30 to 70C
• Storage humidity 0 to 90 RH non condensing
• Production cost lt10
• Max Proto cost lt60
• Max part count lt10
• Power consumption lt2W
• PCB size 8 x 4 x 1 cm
• Reliability 20000 Hrs
• Disposal According to city/government laws
• Safety requirements EN 50081-11992, EN
  50082-11997

28
Microcontroller Performance requirements

• A microcontroller will be from the AVR Atmel
  family of microcontrollers
• A clock of at least 4MHz will be used for the
  microcontroller
• The microcontroller will be used to control most
  of the devices/peripherals in the system
• The microcontroller will be used to control the
  LCD display by responding to user input as well
  as monitoring the status of sensors and
  controlling Ethernet web server
• Inputs
• Sensors, keypad, ring back detection, Ethernet
  control signals
• 5V DC(/-20) power supply, 50mA Max current
• Outputs
• Siren signal, Ethernet control line, LCD data
  and control signals, dialer, voice recording
• It will interface to other devices through the
  chip connection pins

29
AT90S8515 Microcontroller interface
LCD module
8/4 bit data
3 bit ctrl
8/16 MHz XTAL
GND
Voice recording Power and Play/REC control
2 bits
4.5 lt Vcclt 6.6 V
Dialer chip control
4 bits
Parallel keypad interface/UART
4/2 bits
Sensors control
Web server stand by and sensor control
4 bits
3 bits
1 bit
2 bits
VIL max 0.3VCC VIL min -0.5 V VIH min
0.6VCC VIH max VCC 0.5 VOL max 0.6 V VOH
min 4.2 V
I I/O max 40mA RI/O max 120k ohm ICC max 3mA
1 bit
AC status signal
Ring back status
Ring back enable
30
Microcontroller Standard requirements

• Operating Temperature -10 to 80C
• Operating humidity 0 to 90 RH,
  non-condensing
• Storage temperature -30 to 85C
• Storage humidity 0 to 90 RH non condensing
• Production cost lt2
• Max Proto cost lt12
• Max part count lt4
• Power consumption lt1W
• PCB size N/A (stand alone product)
• Dimensions 5 x 1 cm
• Reliability 10 years
• Disposal According to city/government laws
• Safety requirements EN 50081-11992, EN
  50082-11997

31
Microcontroller and LCD Gantt Chart
32
Microcontroller and LCD Gantt Chart
33
Telephone Basics

• ON-HOOK Condition
• 48 VDC Between Tip and Ring
• Tip 0 VDC
• Ring -48 VDC
• No current flow

• OFF-HOOK Condition
• 8 VDC Between Tip and Ring
• Tip -20 VDC
• Ring -28 VDC
• DC Resistance 200-300O
• 20-50mA Current Flow

DTMF Dial Tone Frequencies
1,209 Hz 1,336 Hz 1,477 Hz
697 Hz 1 2 3
770 Hz 4 5 6
852 Hz 7 8 9
941 Hz 0

• Line Characteristics
• Ring Signal 70 120 VAC
• Bandwidth 300Hz-3.4kHz
• Min DTMF Tone Duration 100ms

34
Dialer Performance Requirements

• Dialer will dial the preset telephone number in
  the case of an emergency. This will be
  accomplished by placing DTMF (Dual Tone
  Multi-Frequency) signal on the telephone line.
• Phone number will be stored in the
  Micro-controller memory and sent to the dialer in
  form of 4-bit binary signal. This signal will be
  decoded by Dialer circuitry.
• Inputs
• 4 bit digital signal from micro-controller
• Vin (low) 0-0.8 VDC
• Vin (High) 3.9-5.5 VDC
• 5V (10) DC, 70mA power supply
• 1 bit Relay Control Signal
• Vin (low) 0-0.8 VDC
• Vin (High) 3.9-5.5 VDC
• Relay will be used to close/open phone line
• Output
• DTMF signal (697-1477Hz), 0.5VAC Peak max.
• Mechanical interface RJ11 connector to phone
  line

35
Dialer Performance Requirements Block Diagram
36
Dialer Standard Requirements

• Operating Temperature -10 to 60C
• Operating Humidity 0 to 85RH, non-condensing
• Storage Temperature -40 to 70C
• Storage Humidity 0 to 95RH, non-condensing
• Max Part Count lt35
• Max Proto Cost lt 30
• Production Cost lt20
• Power Consumption lt1/2W
• PCB size 5 X 10 X 2 (Cm)
• Reliability 1000Hrs MTBF
• Disposal According to government regulations
• Safety Requirements EN 50081-11992, EN
  50082-11997, Part 68 FCC Rules.

37
Dialer Gantt Chart
38
Dialer Gantt Chart
39
Voice Recording/Playback - Performance
Requirements

• Voice recording will record the users message
  which will be played after the telephone
  communication between the user and system has
  been established.
• The message will be recorded when RECORD signal
  is received from the micro-controller.
• The message will be played when PLAY signal is
  received from the micro-controller during
  emergency.
• Inputs
• Audio AC signal 300-3400Hz, 50mVP-P Max
• Digital control signals RECORD/PLAY and Power
  Down
• 0-0.8VDC Low, 3.9-5.5VDC High
• 5VDC(10) power supply, 45mA Max
• Output
• 300-3400Hz AC signal, 0.5VAC Peak Max
• Mechanical Interface 2-Pin Microphone Connector

40
Voice Recording/Playback - Performance
RequirementsBlock Diagram
41
Voice Recording Standard Requirements

• Operating Temperature 0 to 60C
• Operating Humidity 0 to 85RH, non-condensing
• Storage Temperature -40 to 70C
• Storage Humidity 0 to 95RH, non-condensing
• Max Part Count lt20
• Max Proto Cost lt 40
• Production Cost lt30
• Power Consumption lt1.25W
• PCB size 5 X 8 X 2 (Cm)
• Reliability 1000Hrs MTBF, gt50000 Recording
  Cycles
• Disposal According to government regulations
• Safety Requirements EN 50081-11992, EN
  50082-11997, Part 68 FCC Rules.

42
Voice Recording - Gantt Chart
43
Voice Recording - Gantt Chart
44
Embedded Ethernet Controller and Web Server
Performance Requirements

• OEM Product that will enable two way
  communication between the user and the device.
• User will be able to monitor each sensor status
  over the internet. User will also have the
  ability to turn individual sensors on or off and
  to shut-down/restart the system.
• The I/O commands will be transferred through
  TCP/IP protocol using the internet socket
  interface. The socket interface will be
  implemented with Java applet.
• Inputs
• 4 one-bit digital inputs
• 0-0.8 VDC Low, 2-5 VDC High
• 5VDC (10) power supply, 300mA
• Broadband Ethernet

45
Embedded Ethernet Controller and Web Server
Performance Requirements

• Outputs
• 4 one-bit digital outputs
• 2.5 5 VDC High
• Broadband Ethernet
• Mechanical Interface
• RJ45 connector
• 20 pin , two-row I/O connector, 2.5 mm Pitch

46
Embedded Ethernet Controller and Web Server
Block Diagram
47
Embedded Ethernet Controller and Web Server
Standard Requirements

• Operating Temperature 0 to 60C
• Operating Humidity 0 to 85RH, non-condensing
• Storage Temperature -40 to 70C
• Storage Humidity 0 to 95RH, non-condensing
• Max Part Count lt40
• Max Proto Cost lt 200
• Production Cost lt70
• Power Consumption lt1.5W
• PCB size 10 X 6 X 2 (Cm)
• Reliability 1000Hrs MTBF
• Disposal According to government regulations
• Safety Requirements CISPR 22, CISPR 24

48
Embedded Ethernet Controller and Web Server
Gantt Chart
49
Embedded Ethernet Controller and Web Server
Gantt Chart
50
Ring Back Detection
Ringback Detection
Power Supply 5V
Micro controller
Phone Line
Once the alarm is triggered, uC talks to the
dialer to dials. The ring back detection looks
for ring-back/busy/dial tone. It connects to the
phone line, detects the signals, and will let the
uC know when the line is answered. WHY RING
BACK ? Ring Back/ Ring Tone is returned to the
calling party to indicate that the called line
has been reached and power ringing has started.
In the precise tone plan, audible ring back
consists of 440 Hz 480 Hz with a 2 seconds on/
4 seconds off temporal pattern.
51
Basic Call Progress
52
Basic Call Progress

• Divided into 6 phases
• On-hook ? Telephone set is in ready condition
  wait for a caller to
• pick up its handset.
• Off-hook ? Costumer decides to make a phone
  call and lifts the
• handset off the switch
  hook of the telephone set.
• Dialing ? Costumer enter a phone number
  (address) of a tele-
• phone at another
  location.
• Switching ? Telephone switch translates the
  tones into a port
• address that connects
  to a telephone set of the
• called party.
• Ringing ? CO switch connects to the called
  line, and sends
• ringing signal to the
  phone of the called party.
• While ringing the called
  partys phone, the CO
• switch sends ring back
  tone to caller and lets the
• caller know that ringing
  is taking place at the called
• partys phone.
• Talking ? As soon as the called party lifts
  the handset, an off-hook
• phase starts again from
  the opposite site of the network.
• The local loop is closed
  on the called partys side, and

53
Precise Call Progress Tone Detection

• Parts M-982-02P 22-pin plastic DIP
• Audible tones sent from switching systems to
  calling
• parties to show the status of calls
• Calling parties can identify the success of a
  call placed by
• what is heard after dialing
• Operation Theory
• The use of IC techniques allows the M-982-02
  to pack the
• five filters for call progress following
  into a single 22-pin
• DIP. A 3.58 MHz crystal controlled time base
  guarantees
• accuracy and repeatability

54
Block Diagram
Detector Outputs
Precise Tone Detector
SIGIN
DET3
XRANGE
DET4
Clock Generator
Power Regulation
PD
Vdd
OE MODE EN
55
Precise Call Progress Tone Detector

• M-982-02 contains five signals detectors (DET n)
  sensitive to the frequencies (e.g. Det3-440Hz,
  Det4-480Hz). In this case, I am going to use 2
  frequency signals only for Ring Back.
• DET n outputs of the M-982-02P can determine the
  nature of signals/characters present by measuring
  their duty cycle.
• Duty cycle also refers to as Interruption Rate.
• Tri-state timing to latch the signals
• OE is active high input ? Z is low
• Signal timing
• SIGIN (analog signal input)
• DET n (active tri-state output)
• STROBE (active high output)
• Power Down Timing
• PD is high (logic high inhibits internal
  clock)
• Clock is inactive

56
(No Transcript)
57
Input and Output Signals

• The input signals are       a) EN, OE, XRANGE,
  MODE (Vil5V, Vih3V)         b) Pull-up and
  Pull down currents (PD 4 to 10uA)       c)
  SIGIN pin -gt R80kohm, f500Hz, V 5V d)
  CLOCK -gt External connect to XIN
• (Vil0.2, V
  Vih4.8V, Duty Cycle40-60)                
        The output signals are        a) DET n
  (Vol0.5V)       b) STROBE pins (Voh2.2V)    
    c) DET n pins (Ioz1uA)      For the logic
  gates (determine by the frequency below)      
   - SILENCE   MODE(X)   DETn(0)  STROBE(0)
  PD(0)  OE(1)  EN(1)         - DIAL TONE MODE(0)
    DET1(1)  STROBE(1) PD(0)  OE(1)  EN(1) OR    
                  MODE(X)   DET3(1)
   STROBE(1) PD(0)  OE(1)  EN(1)        - RING
  BACK MODE(X)   DET3(1)  STROBE(1) PD(0)  OE(1)
   EN(1) OR                     MODE(X)
    DET4(1)  STROBE(1) PD(0)  OE(1)  EN(1)      
   - BUSY TONE MODE(X)   DET4(1)  STROBE(1) PD(0)
   OE(1)  EN(1) OR                    
  MODE(1)   DET2(1)  STROBE(1) PD(0)  OE(1)
   EN(1)               For the frequencies    
     - DIAL TONE  350Hz 440Hz        - RING
  BACK  440Hz 480Hz        - BUSY TONE  480Hz
  620Hz

58
Standards Requirements

• Market
• Max Prototype cost 25
• Max Production cost 12
• Mechanical
• Max Total PCB Area 100 cm2
• Power
• Single supply 3 to 5 volt
• Current Drain (Idd) 15 mA
• Environmental
• Storage Temperature -40 to 150C
• Operating Ambient Temperature -40 to 85C
• Operating Conditions
• Vdd 2.7 5.5V
• Vref 1.296V 1.404V
• Power Supply Noise 20mVp-p

59
Standard Requirements

• Safety
• EMC Standard
• IEC 61000-3-2 (power line harmonics)
• IEC61000-4-2 (Electro Static Discharge
  
• Immunity)
• Other Standards
• ISO 90012000 Certification
• ISO 90011994 Certification

60
Performance Requirements

• Operation Modes
• Power-down mode 4 to 10 uA
• Electrical Interface
• - Input Analog (Linear)
• - Outputs Digital (CMOS compatible),
  tri-state
• - Dynamic range 30 dB
• - Signal Detection Freq Range -11 to 11 Hz
• Duration (tdd) 200ms
• Bridge time (tbb) 20ms
• - Signal Rejection Freq Range -66Hz
• Interval duration (tid) 160ms
• Time to output (tio) 200ms
• Mechanical Interface
• Connector Phone line (a b)

61
Block Ten - Siren

• The siren block communicates to the user when the
  security system is triggered via audible alert.
  This block is located inside of the systems
  enclosure. Sound will travel through louvers in
  the enclosure. Amplifier is a push-pull design.
  The siren block will be activated by supplying
  power to the siren driver. Driver chip is
  ZSD100.

• Siren signal generation comes from the ZSD100
  chip. Capacitors are TBD, and are added to vary
  the sirens output frequency.
• Push-pull amplification is implemented by six
  transistors, two MS2222 npn transistors, two
  ZTX690B npn transistors, and two ZTX790A pnp
  transistors. As it stands, additional
  amplification may be necessary.
• Speaker is made by CUI Inc. Part number GF1004H.
  
• 8 ohm
• 4 inches in diameter
• Nominal input of 20W

62
Block Ten - Siren
Amplification
Speaker
Siren Driver ZSD100
12 Volt on/off signal
63
Siren specifications

• Market - Estimated prototype cost is 20, with a
  mass production cost of 15.
• Power 12V dc, delivered from the power supply.
  Minimum operating voltage is 4V, maximum is 18V.
  Total power consumption is 12W.
• Mechanical Maximum product volume is 64 cubic
  inches. Individual shipping container volume of
  80 cubic inches. Maximum product mass of 1.5
  pounds. This circuit will be on the master
  printed circuit board, and occupy 2.25 square
  inches. Supply voltage will be transferred via
  soldered trace. An estimated maximum shock force
  of 2 G due to the speaker. Product will survive
  4 drops. Speaker will be enclosed in a plastic
  bag for moisture resistance during shipping.
• Environmental Range of operational and storage
  temperature is -40 C to 70 C. Relative humidity
  cannot exceed 90-95 at any time. Product can be
  stored for ten years.

64
Siren specifications continued

• Safety UL464 (Standard for Audible Signal
  Appliances)
• Manufacturing The maximum total parts count is
  10, 3 of which are unique. The maximum parts and
  materials cost is 18, and the maximum assembly
  and test cost is 2.
• Life cycle Estimated maximum production
  lifetime of ten years, with a factory and/or
  field service strategy. Product life is
  estimated to be 15 years, with a three year
  warranty period. Product will be disposed in
  accordance to local laws and regulations.
• Performance Requirements The power supply turn
  the siren on or off.
• User indicators The siren is only one of four
  ways to inform the user of a zone violation.
  User will be provided with an estimated 110dB
  signal from the speaker. The perception distance
  will be 100 feet indoors, under normal noise
  conditions in a home.

65
Siren specifications continued

• Operation modes Unit will have two modes, on
  and off.
• Electrical Transfer Performances THD maximum is
  10, min power gain of 1. A maximum expected
  delay between when system is triggered, and when
  the siren is activated, is 2 seconds. Negligible
  EM field is expected outside of the stainless
  steel enclosure.
• Mechanical interfaces A four inch paper
  speaker cone is the only mechanical interface.

66
Siren Gantt Chart
67
Block four - Keypad

• The keypad is the mechanical user interface
  for the security system. It can be used for
  arming, disarming, system setup, and dialer
  programming. The user may activate and
  deactivate the alarm by entering a security code
  on the keypad. The user also can use the keypad
  to control various functions of the system.

A Grayhill 96 series keypad will be used. This
part was chosen solely upon its price. The E-Lab
EDE1144 keypad encoder will be used to interface
the keypad to the microprocessor. This encoder
was chosen to reduce design time, part costs, and
PLD redundancy.
68
Block Four - Keypad
4 Parallel Output
EDE1144 Keypad Encoder
8 I/O Signals
5V Supply
Possible UART Output
69
Keypad specifications

• Market - Estimated prototype cost is 18, with a
  mass production cost of 15.
• Power 5V dc, delivered from the power supply.
  Minimum operating voltage is estimated to be 4V,
  maximum is estimated to be 6V.
• Mechanical Maximum product volume is 8 cubic
  inches. Individual shipping container volume of
  10 cubic inches. Maximum product mass of 0.25
  pounds. This circuit will be on the master
  printed circuit board, and occupy 2 square
  inches. Supply voltage to the keypad will be
  transferred via pin and socket connector. Supply
  voltage to the logic will be delivered by a
  soldered trace on the circuit board. An
  estimated maximum shock force of 10G. Product
  will survive 20 drops. Product will be enclosed
  in a plastic bag for moisture resistance during
  shipping.

70
Keypad specifications continued

• Environmental Operating temperature is form -30
  to 80 Celsius.
• Safety None found
• Manufacturing Maximum total parts count is 15,
  with five being unique parts. Maximum total
  parts and material cost will be 20, assembly and
  test cost of 5.
• Life Cycle - Estimated maximum production
  lifetime of ten years, with a factory and/or
  field service strategy. Product life is
  estimated to be 15 years, with a three year
  warranty period. Product will be disposed in
  accordance to local laws and regulations.
• Performance requirements The keypad will give
  the user access to all of the systems functions.
  Buttons are of the pushbutton type, with a
  minimum of 0.04 inches of travel. Operating
  force is 175 grams, maximum is 215 grams, and
  minimum is 135 grams.

71
Keypad specifications continued

• User indicators and displays Sixteen black
  buttons are alpha-numeric, 0-9, , , and A-D.
  Symbols on keys are white. Each key is 0.308
  square inches. Viewing distance is approximately
  four feet depending on the usurers vision, in
  normal room lighting.
• Operation modes Power modes are on, and off.
• Electrical interfaces Keypad will be connected
  to the driver with an 8 pin connector. Logic
  will be soldered to the main board and employ
  traces to carry the signals.
• Mechanical interfaces Connector from keypad to
  main board is a single row, 8 connector female
  housing. Wires from the connector will be
  soldered onto the main board.

72
Keypad Gantt Chart
73
Block Two - Sensors

• There are three sensors in the system. These
  sensors are what trigger the alarm. Carbon
  monoxide, water level, and door / window opening
  sensors are used to keep the user informed of
  unfavorable circumstances. The production model
  will have will have the capability of using more
  than three sensors. Only three are used in this
  case to keep the prototype recourses to a minimum.

74
Gas Sensor
Carbon Monoxide Sensor
12 Volt Supply
Single Digital Out
Single Line Analog Output
Ground
Logic

• Chances are likely that the proposed idea of a
  carbon monoxide sensor will not be used due to
  availability. The replacement sensor is yet to be
  determined.

75
Gas sensor specifications

• Market Maximum product cost of 40, 45 maximum
  prototype cost.
• Power 12V dc, delivered from the power supply
  to the sensor. Minimum operating voltage is
  estimated to be 10V, maximum is estimated to be
  14V. Power is supplied to the sensor through a
  Molex connector. Power for the logic following
  the sensor will be 5V dc. Maximum of 6V, minimum
  of 4V.

76
Gas sensor specifications continued

• Mechanical Maximum product volume is six cubic
  inches, shipping volume is ten cubic inches.
  Maximum product mass is 0.25 pounds. Sensor has
  four parts, all of them are unique. The maximum
  shock force is 100G, 5 impacts. Product will be
  wrapped in a plastic bag for moisture protection.
  
• Environmental - Operating temperature range is
  -10 to 55 Celsius. Storage temperature ranges
  from -30 to 85 Celsius. Product does not
  provide a humidity range for storage or
  operation.
• Safety UL 2034 (Standard for Single and
  Multiple Station Carbon Monoxide Alarms), UL 634
  (Standard for Connectors and Switches for Use
  with Burglar-Alarm Systems)
• Manufacturing Total parts count of five, all
  unique parts. Parts cost is estimated at 38,
  assembly cost of 2.
• Life cycle Estimated production lifetime of
  five years. Product has a field or factory
  service recommendation due to calibration.
  Product life of 2-3 years. Product will be
  disposed in accordance to local laws and
  regulations.

77
Gas sensor specifications continued

• Performance requirements The sensors input
  will be a port into open air.
• Operation modes Sensor has two modes, on and
  off. Sensor has two functional modes,
  contaminated air, and clean air.
• Electrical interfaces Sensor produces an analog
  output. Voltage level is monitored by a yet to
  be determined logic circuit.
• Mechanical interfaces This sensor requires
  three contacts. Therefore a 3 position
  female connector is used to link it to the
  system.

78
Water sensor specifications

• Market Maximum production cost is 10, maximum
  prototype cost is 15.
• Power - 12V dc, delivered from the power supply.
  Minimum operating voltage is estimated to be 4V,
  maximum is estimated to be 14V.
• Mechanical - Maximum product volume is six cubic
  inches, shipping volume is ten cubic inches.
  Maximum product mass is 0.25 pounds. Sensor has
  four parts, all of them are unique. The maximum
  shock force is 100G, 10 impacts. Moisture
  resistance packaging is not needed.
• Environmental Operating and storage temperature
  is form -30 to 80 Celsius. Product will
  operate in all humidity.
• Safety UL 634 (Standard for Connectors and
  Switches for Use with Burglar-Alarm Systems)
• Manufacturing - 8 parts maximum, 6 parts are
  unique. Maximum parts cost is 7, with a 2
  assembly and test cost.

79
Water sensor specifications continued

• Life cycle Estimated Maximum production
  lifetime of 15 years. Replacement only, no
  service. Product life of 10 years. Product will
  be disposed in accordance to local laws and
  regulations
• Operation modes Sensor has two modes on, and
  off. The functional modes are water present,
  and no water present.
• Electrical Interfaces When water is detected,
  the sensor will send a 5V dc signal to the
  system.
• Mechanical interfaces This sensor requires two
  contacts. Therefore a 2 position
  female connector is used to link it to the system.

80
Water Sensor
Single Digital Output
Sensing Element
12 Volt Supply
Logic
Dc output
81
Door / Window sensor

• Market Maximum production cost is 8, maximum
  prototype cost is 15.
• Power - 12V dc, delivered from the power supply.
  Minimum operating voltage is estimated to be 4V,
  maximum is estimated to be 14V.
• Mechanical - Maximum product volume is 1 cubic
  inch, shipping volume is 1.2 cubic inches.
  Maximum product mass is 0.1 pounds. Sensor has 3
  parts. The maximum shock force is 100G, 10
  impacts. Product will be wrapped in a plastic
  bag for resistance to humidity.
• Environmental Operating and storage temperature
  is form -30 to 65 Celsius. Humidity operation
  rating is unknown.
• Safety UL 634 (Standard for Connectors and
  Switches for Use with Burglar-Alarm Systems), UL
  498 (Standard for Attachment Plugs and
  Receptacles),
• Manufacturing - 2 parts maximum, both parts are
  unique. Maximum parts cost is 7, with a 1
  assembly and test cost.

82
Door / Window sensor continued

• Life cycle Estimated Maximum production
  lifetime of 15 years. Replacement only, no
  service. Product life of 10 years. Product will
  be disposed in accordance to local laws and
  regulations
• Performance requirements Momentary pushbutton
  switch used to sense entry.
• Operation modes - Sensor has two modes, on and
  off. Sensor has two functional modes, closed
  window / door, and open window / door.
• Electrical interfaces - Powered pushbutton will
  return 12V dc to the microprocessor in the event
  of intrusion.

83
Door / Window sensor
5 Volts DC
Sensing Element
DC Output
84
Door / Window sensor continued

• Mechanical interfaces The sensor will be
  mounted near the pane of a window or door. There
  will need to be a small angled bracket attached
  to the window or door to make precise contact
  with the switch only when the door/ window is
  closed. The switch itself will need to be
  mounted to the pane by a separate right angle
  bracket. This sensor requires two contacts.
  Therefore a 2 position female
  connector is used to link it to the system.

85
Door / Window sensor illustrated

• Installation example for a door Required
  hardware is one angled bracket and one flathead
  wood screw. Shown below are both an open door
  and a closed door situation.

86
Sensors Gantt Chart