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Capstone Design Project EE 318-595 Spring 2004 Design Team No. 1 Security Dialer PowerPoint PPT Presentation


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

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Capstone Design Project EE 318-595 Spring 2004 Design Team No. 1 Security Dialer

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Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

Capstone Design Project

EE 318-595 Spring 2004

Design Team No. 1

Security Dialer

Eric Biehr

Mario Divis

Igor Stevic

Edwin Sofian

Kelly Chapin


Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

Design Team Members

Mario Divis

Edwin Sofian

Kelly Chapin

Igor Stevic

Eric Biehr


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.

Security Dialer Project Selection


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

Product Definition

  • 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


Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

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


Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

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 >100dB

  • 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


Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

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


Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

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


Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

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


Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

EMC Test Requirements


Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

Power Supply

+5V

Edwin

Eric

Igor

Kelly

Mario

VAC

VDC

+12V

3

Phone Line

Siren

Ringback Detection

Dialer

10

6

9

Embedded Ethernet Controller /Web Server

Micro-controller

Voice Recording

Internet

Microphone

8

1

7

7

Sensors

LCD

Keypad

2

5

4


Project gantt chart definition phase

Project Gantt ChartDefinition Phase


Project gantt chart productization phase

Project Gantt ChartProductization Phase


Project gantt chart prototype and validation phase

Project Gantt ChartPrototype and Validation Phase


Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

Power Allocation Table


Power supply performance requirements

Power Supply Performance Requirements

  • Power Source Inputs

    • Temporary 60±3Hz 120+10%/-15%VAC power using standard 3 prong detachable 6’7” 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)


Power supply performance requirements1

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 > 200kHz

  • Voltage Ripple and Noise < 50mV

  • Load Regulation < 5% for 30% load change

  • Line Regulation < 5% for 15% line voltage change


Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

Power Supply Block Diagram

Microcontroller &

Web Server

Logic Signal 40mA

60Hz

120VAC

VOH=5V, VOL=0.7V

Siren 1A

Microcontroller 40mA

24VAC

Transformer,

Rectifier &

Voltage

Regulator

Voltage

Regulator

Power Mode Detection & Switching Circuit

Switching Regulator

Dialer 70mA

Voice Chip 45mA

+18VDC 3A

+12VDC 2.5A

+12VDC 2.5A

+5VDC 1A

LCD 500mA

Web Server 300mA

Keypad 5mA

Ringback Detection 15mA

Sensors 70mA

Voltage Regulator Battery Charger

DC battery

12V 7.2Ahr

+13.65VDC 300mA


Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

Power Supply EMC, Safety Standards and Disposal

  • Electromagnetic Compatibility Standards

    • EN 61204-3:2000

      • Low voltage power supplies with DC output

    • EN 50081-1:1992

      • Generic Emission Standard for residential, commercial and light industry

    • EN 50082-1:1997

      • 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


Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

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


Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

Power Supply Gantt Chart 1 of 2


Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

Power Supply Gantt Chart 2 of 2


Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

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


  • Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

    20x4 LCD module

    GND

    LCD Contrast adjust

    4.5 < Vdd< 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


    Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

    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:<$10

    • Max Proto cost:<$60

    • Max part count:<10

    • Power consumption:<2W

    • PCB size: 8 x 4 x 1 [cm]

    • Reliability:20000 Hrs

    • Disposal:According to city/government laws

    • Safety requirements: EN 50081-1:1992, EN 50082-1:1997


    Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

    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


  • Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

    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 < Vcc< 6.6 V

    4 bits

    Dialer chip control

    4/2 bits

    Parallel keypad interface/UART

    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

    VIHmax = VCC + 0.5

    VOLmax = 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


    Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

    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:<$2

    • Max Proto cost:<$12

    • Max part count:<4

    • Power consumption:<1W

    • PCB size: N/A (stand alone product)

    • Dimensions:5 x 1 [cm]

    • Reliability:10 years

    • Disposal:According to city/government laws

    • Safety requirements: EN 50081-1:1992, EN 50082-1:1997


    Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

    Microcontroller and LCD Gantt Chart


    Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

    Microcontroller and LCD Gantt Chart


    Telephone basics

    Telephone Basics

    • OFF-HOOK Condition:

      • 8 VDC Between Tip and Ring

      • Tip = -20 VDC

      • Ring = -28 VDC

      • DC Resistance = 200-300Ω

      • 20-50mA Current Flow

    • ON-HOOK Condition:

      • 48 VDC Between Tip and Ring

      • Tip = 0 VDC

      • Ring = -48 VDC

      • No current flow

    DTMF Dial Tone Frequencies

    • Line Characteristics:

      • Ring Signal: 70 – 120 VAC

      • Bandwidth: 300Hz-3.4kHz

      • Min DTMF Tone Duration: 100ms


    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

    Dialer Performance Requirements


    Dialer performance requirements block diagram

    Dialer Performance Requirements – Block Diagram


    Dialer standard requirements

    Operating Temperature: -10 to 60C

    Operating Humidity: 0 to 85%RH, non-condensing

    Storage Temperature: -40 to 70C

    Storage Humidity: 0 to 95%RH, non-condensing

    Max Part Count: <35

    Max Proto Cost: < $30

    Production Cost: <$20

    Power Consumption: <1/2W

    PCB size: 5 X 10 X 2 (Cm)

    Reliability: 1000Hrs MTBF

    Disposal: According to government regulations

    Safety Requirements: EN 50081-1:1992, EN 50082-1:1997, Part 68 FCC Rules.

    Dialer Standard Requirements


    Dialer gantt chart

    Dialer – Gantt Chart


    Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

    Dialer – Gantt Chart


    Voice recording playback performance requirements

    Voice recording will record the user’s 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

    Voice Recording/Playback - Performance Requirements


    Voice recording playback performance requirements block diagram

    Voice Recording/Playback - Performance RequirementsBlock Diagram


    Voice recording standard requirements

    Operating Temperature: 0 to 60C

    Operating Humidity: 0 to 85%RH, non-condensing

    Storage Temperature: -40 to 70C

    Storage Humidity: 0 to 95%RH, non-condensing

    Max Part Count: <20

    Max Proto Cost: < $40

    Production Cost: <$30

    Power Consumption: <1.25W

    PCB size: 5 X 8 X 2 (Cm)

    Reliability: 1000Hrs MTBF, >50000 Recording Cycles

    Disposal: According to government regulations

    Safety Requirements: EN 50081-1:1992, EN 50082-1:1997, Part 68 FCC Rules.

    Voice Recording Standard Requirements


    Voice recording gantt chart

    Voice Recording - Gantt Chart


    Voice recording gantt chart1

    Voice Recording - Gantt Chart


    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

    Embedded Ethernet Controller and Web Server – Performance Requirements


    Embedded ethernet controller and web server performance requirements1

    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

    Embedded Ethernet Controller and Web Server – Performance Requirements


    Embedded ethernet controller and web server block diagram

    Embedded Ethernet Controller and Web Server – Block Diagram


    Embedded ethernet controller and web server standard requirements

    Operating Temperature: 0 to 60C

    Operating Humidity: 0 to 85%RH, non-condensing

    Storage Temperature: -40 to 70C

    Storage Humidity: 0 to 95%RH, non-condensing

    Max Part Count: <40

    Max Proto Cost: < $200

    Production Cost: <$70

    Power Consumption: <1.5W

    PCB size: 10 X 6 X 2 (Cm)

    Reliability: 1000Hrs MTBF

    Disposal: According to government regulations

    Safety Requirements: CISPR 22, CISPR 24

    Embedded Ethernet Controller and Web Server – Standard Requirements


    Embedded ethernet controller and web server gantt chart

    Embedded Ethernet Controller and Web Server – Gantt Chart


    Embedded ethernet controller and web server gantt chart1

    Embedded Ethernet Controller and Web Server – Gantt Chart


    Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

    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.


    Basic call progress

    Basic Call Progress


    Basic call progress1

    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 party’s phone, the CO

    switch sends ring back tone to caller and lets the

    caller know that ringing is taking place at the called

    party’s 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 party’s side, and

    current starts to flow to the CO switch. This switch detects

    current flow and completes the voice connection back to the

    calling party’s phone.

    Basic Call Progress


    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

    Precise Call Progress Tone Detection


    Block diagram

    Block Diagram

    Detector

    Outputs

    Precise Tone Detector

    SIGIN

    DET3

    XRANGE

    DET4

    Clock Generator

    Power Regulation

    PD

    Vdd

    OE MODE EN


    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

    Precise Call Progress Tone Detector


    Input and output signals

    The input signals are:       a) EN, OE, XRANGE, MODE (Vil=5V, Vih=3V)         b) Pull-up and Pull down currents (PD = 4 to 10uA)       c) SIGIN pin -> R=80kohm, f=500Hz, V = 5V d) CLOCK -> External connect to XIN

    (Vil=0.2, V Vih=4.8V, Duty Cycle=40-60%)     The output signals are :       a) DET n (Vol=0.5V)       b) STROBE pins (Voh=2.2V)       c) DET n pins (Ioz=1uA)     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

    Input and Output Signals


    Standards requirements

    Market

    Max Prototype cost: $25

    Max Production cost: $12

    Mechanical

    Max Total PCB Area: 100 cm^2

    Power

    Single supply: 3 to 5 volt

    Current Drain (Idd): = 15 mA

    Environmental

    Storage Temperature: -40 to 150˚C

    Operating Ambient Temperature: -40 to 85˚C

    Operating Conditions:

    Vdd = 2.7 – 5.5V

    Vref = 1.296V – 1.404V

    Power Supply Noise = 20mVp-p

    Standards Requirements


    Standard requirements

    Safety

    EMC Standard:

    IEC 61000-3-2 (power line harmonics)

    IEC61000-4-2 (Electro Static Discharge

    Immunity)

    Other Standards:

    ISO 9001:2000 Certification

    ISO 9001:1994 Certification

    Standard Requirements


    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)

    Performance Requirements


    Block ten siren

    Siren signal generation comes from the ZSD100 chip. Capacitors are TBD, and are added to vary the siren’s 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

    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 system’s 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.


    Block ten siren1

    Block Ten - Siren

    Amplification

    Speaker

    Siren Driver

    ZSD100

    12 Volt on/off signal


    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.

    Siren specifications


    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.

    Siren specifications continued


    Siren specifications continued1

    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.

    Siren specifications continued


    Siren gantt chart

    Siren Gantt Chart


    Block four keypad

    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.


    Block four keypad1

    Block Four - Keypad

    4 Parallel Output

    EDE1144

    Keypad

    Encoder

    8 I/O Signals

    5V Supply

    Possible UART Output


    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.

    Keypad specifications


    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 system’s 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.

    Keypad specifications continued


    Keypad specifications continued1

    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.

    Keypad specifications continued


    Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

    Keypad Gantt Chart


    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.

    Block Two - Sensors


    Gas sensor

    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.

    Gas Sensor

    Carbon Monoxide Sensor

    12 VoltSupply

    Single

    Digital

    Out

    Single

    Line

    Analog Output

    Ground

    Logic


    Gas sensor specifications

    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.


    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.

    Gas sensor specifications continued


    Gas sensor specifications continued1

    Gas sensor specifications continued

    • Performance requirements – The sensor’s 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.


    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.

    Water sensor specifications


    Water sensor specifications continued

    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.


    Water sensor

    Water Sensor

    Single

    Digital

    Output

    Sensing Element

    12 Volt Supply

    Logic

    Dc output


    Door window sensor

    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.


    Door window sensor continued

    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.


    Door window sensor1

    Door / Window sensor

    5 Volts DC

    Sensing Element

    DC Output


    Door window sensor continued1

    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.


    Door window sensor illustrated

    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.


    Capstone design project ee 318 595 spring 2004 design team no 1 security dialer

    Sensors Gantt Chart


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