xtrinsic sensing: application of physical tamper detection ... · • embedded functionality to...

External Use

TM

Xtrinsic Sensing: Application of

Physical Tamper Detection and

Safety Shutoff

FTF-SEG-F0171

A P R . 2 0 1 4

Dan Sadler | Product Line Manager

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External Use 1

Session Objectives

• Gain knowledge of components for smart energy market

• Learn about Freescale solutions for smart energy

• Understand the application of Freescale sensors for physical

tamper detection in smart energy meters

• Become familiar with Freescale industrial sensor portfolio

• Know where to go for more information

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External Use 2

Agenda

• Smart grid market overview

• Freescale metrology solutions

• Tamper detection using Freescale sensors

− Physical tamper detection

− How our sensors work

− Smart meter reference design with tilt sensor

− Smart meter reference design with magnetic sensor

• New sensor products (industrial focus)

• Where to get more information

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External Use 3

Smart Grid Market Enablers and Growth Drivers

• Environmental Factors − Growing demand for electricity

• Governmental Mandates

− EU plan 20% reduction of energy consumption by 2020 − Deregulations (leading to separation of energy transport and energy provider) − USA: $4.3 B for direct investment in the smart grid through the stimulus package − China $9.7 B investment to deploy AMR/AMI

• Utility Companies

− Optimization of the distribution infrastructure and prevention of potential black-outs (peak management) − More services to end consumer

• Renewable Energies and Electric Vehicles

− Residential solar and solar farm decentralized productions − Consumer production sold back to the energy provider − Plug-in Hybrid Electric Vehicles (PHEV)

• In-Building Customer Comfort

− e-Thermostats, smart and user-friendly displays, home-automation − End-customer energy savings (controls when, how, how much)

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External Use 4

Freescale Solutions Enable the Smart Grid

Appliances

Home Automation

Automotive Building Control

Metering

Lighting

Industrial Control

Motor Drives

Networking

Communications

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External Use 5

Agenda










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External Use 6

2/3

-Phase

Mete

r

Flo

w M

ete

r

1-P

hase 1-Phase Meter

MCF51EM256

Integrated AFE

Low Cost Meter Designs

9RS08KA8/LA8/LG32

PolyPhase

Meter

MCF51EM256

Low Cost

Meter

9S08LH64

Integrated AFE

Gas / Water Meter

9S08GW64

1-ph E Meter

9S08GW64

2-ph E Meter

MKM34 (US)

Gate

wa

y/

Concentr

ato

r

Connectivity

1-ph E Meter

MZ60 (China)

Low-Cost In-Home

Energy Display

MK30/40 + MC13226

(Zigbee) + MC12311

(WMBus)

Smart Plug with

Display 9S08GW64+

MC13214

3-ph Simulation DEMOEM

MCF51EM256

Home Energy Mgr.

i.MX28

Data Concentrator

(China)

MC5441x

Energy Gateway

MPC8308

Secure,

Prepaid MK30

with NFC

Smart Metering Reference Designs freescale.com/smartenergy, freescale.com/metering

1-ph E Meter

MKM34

(Europe, India)

3-ph E-meter

(MK30, MKM34Z5)

Include Tamper Detect with MAG3110 and/or MMA8491

freescale.com/smartenergy

freescale.com/smartenergy

freescale.com/metering

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External Use 7

Agenda










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External Use 8

Meter Tampering and Tamper Detection

• “Traditional” physical tampering (individual)

− Slow down meter

Magnets

Sand, pins

Turn upside-down

− Re-wire box

• “Cyber” attacks (individual and network)

− Network attacks via malware / virus

− Hacking microprocessor / memory

− Wireless communication hacking

MMA8491

Accelerometer

MAG3110

Magnetometer

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External Use 9

How It Works – Accelerometer

• MEMS accelerometer composed of proof mass, spring, and

variable capacitor proof mass

Springs k

Fixed fingers

anchored bias at

diff. potential

sense

axis

Spring

anchors

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External Use 10

How It Works – Magnetic Sensors Magnetic Tunnel Junction (MTJ)

Angle, Theta

“Pinned” or “Fixed”

“Free”

Ferromagnet

Ferromagnet Insulator

Ferromagnet

Ferromagnet Insulator

High resistance state

Low resistance state

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External Use 11

Smart Meter Reference Design

Metrology Key Features

• 5 A (nominal), 100 A (peak) current range

• 4-quadrant measurement (85 V – 264 V, 47 Hz – 63 Hz)

• FFT processing implemented using DSP

• IEC50470-3 and ANSI C12.20 compatible

• Active and reactive energy accuracy:

− IEC50470-3 Class B, 1%

• Line frequency measurement (for precision 0-cross detection)

• Current transformers for current sensing circuit implementation

• Cost-effective bill of materials (BOM)

• Low-power modes effectively implemented, including the use of

the built-in RTC

• LCD display, 4x44 segments including charge pump

http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=RDELECTRONICTAMPER&aspll=1

Tamper Detection with MMA8491Q

• Ultra low power (400 nA current consumption at 1 Hz)

• Extreme ease of use (integrated tilt algorithms)

• Industrial package

• Miniature 3 mm x 3mm 12-pin QFN

• Visual solder joint inspection capability

http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=RDELECTRONICTAMPER&aspll=1

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External Use 12

MMA8491Q Implementation Example

• MMA8491 tilt sensor is designed specifically for metering applications (gas, water, electric)

• 3-axis industrial accelerometer: 1.95 V-3.6 V, +/-8 g range

• Best in class power consumption (400 nA/Hz) -> 20+ years battery life

• Miniature industrial package (3 mm x 3mm QFN) -> visual solder joint inspection capability

• Easy to use 45° tilt detect requires only 3 MCU I/O’s for logic outputs (I2C also available)

− Plug and play (no I2C setup or part configuration required)

− “Ball in a box” replacement: high reliability simple threshold tilt detection

− Included in MK30 smart meter reference design

• Freescale Longevity Program -> guaranteed availability for a minimum of 10 years

Gas meter functional block diagram

TAMPER

45°

Best in class power consumption

MMA8491

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External Use 13

Smart Meter Reference Design MAG3110 Tamper Detect

MMA3110 for Tamper Detection

• Ultra-small, extremely low power 3-axis

magnetic sensor

− 24 uA current at 1.25 Hz ODR

− 2 mm x 2 mm x 0.85 mm package

− 1.95 V to 3.6 V supply voltage

− Maximum field of 10 G (1000 uT)

− Magnetometer resolution of 0.1 uT

− I²C digital interface

− Temperature range of -40°C to +85°C

• Implementation in Tamper Detect

− Open door detection

− Sense high magnetic field (tamper attempt via

large permanent magnet)

http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=RDMK30XSPEM

http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=RDMK30XSPEM

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External Use 14

Agenda










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External Use 15

Xtrinsic MMA8491 3-axis Extreme Low Power Digital Accelerometer (Tilt Detect)

Differentiating Points

− Power consumption (<0.35 uA/Hz)

− Turn on time (<0.5 ms)

− Ease of use (XYZ 45º tilt detect outputs)

Product Features

− 1.95 V to 3.6 V supply voltage

− ±8 g range, 1 mg/count sensitivity

− Sample rate from <1 Hz to 800 Hz+

− I²C digital output interface

− Enable pin for external power management

− 216 µg/√Hz noise

− 3 x 3 mm 0.65 mm pitch with visual solder joint inspection

Typical Applications

− Remote Controls

− Smart Grid: Tamper Detect

− White Goods Tilt

Package 3 x 3 x 1 mm QFN, 0.65 mm pitch

Availability Samples: NOW

Production: NOW

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External Use 16

Xtrinsic FXLN83xx 3-axis High-Performance Analog Accelerometers (High Bandwidth Industrial)


• Zero-g level offset accuracy

• Board mount offset shift

• Output noise

Product Features

• 1.71 V to 3.6 V supply voltage

• ±2g/±4g/±8g/±16g dynamically selectable

• 150 µg/√Hz noise

• Non-ratiometric analog parallel outputs

• High bandwidth: Up to 4.9 kHz capable

• Visible solder inspection leads

• QFN 3 x 3 x 1.05 mm 0.65 mm pitch package


• White Goods

• Factory Automation

• Gaming

Industrial FXLN8371Q

4.9 kHz bandwidth

±2 g, 228 mV/g sensitivity


FXLN8372Q

4.9 kHz bandwidth



FXLN8361Q



FXLN8362Q



Consumer

FXLN8351Q

4.9 kHz bandwidth



FXLN8352Q



Package 3 x 3 x 1 mm QFN, 0.65 mm pitch


Production: April 2014

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External Use 17

Xtrinsic FXLS8471 3-Axis High-Performance Digital Accelerometer (SPI Interface)


• Output noise (99 ug/rHz)

• Offset and sensitivity accuracy

• Resolution of 0.25 mg/count

Product Features


• ±2 g/±4 g/±8 g dynamically selectable

• Output data rate (ODR) from 800 Hz to 1.563 Hz

• SPI/I²C digital output interface with interrupts

• Embedded orientation (portrait/landscape)

• Embedded high pass filter

• Embedded 32 sample FIFO


• Laptops: HDD drop protect

• Washing machine: out of balance detect

FXLS8471Q 14-bit output, SPI

High Pass Filter with DSP functions

Configurable Orientation detect

FIFO

Package 3 x3 x 1 mm QFN, 0.5 mm pitch


Production: NOW

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External Use 18

Xtrinsic MAG3110 3-Axis Magnetometer (Ultra-Small Magnetic Sensor)


• High accuracy compass function

• Decimator allows for lowest noise implementation with oversampling to remove RF noise and Idd induced magetic fields

Product Features


• Maximum field of 10 G (1000 uT)

• Output data rates (ODR) from 1.25 Hz to 80 Hz

• Magnetometer resolution of 0.1 uT

• Current consumption as low as 24 uA at 1.25 Hz

• I²C digital interface

• Extended temperature range of -40°C to +85°C


• Electronic Compass

• Enhanced User Interface

• Location Based Services

Package 2 x 2 x 0.85 mm DFN, 0.5 mm pitch


Production: NOW

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External Use 19

Xtrinsic FXOS8700 6DOF eCompass (3-Axis Accelerometer, 3-Axis Magnetometer)

Package 3 x 3 x 1.2 mm QFN


Production: NOW


• Pin compatible with Freescale accelerometers

• Lowest noise gcell and mcell

• Embedded functionality to allow system fast response and power savings

• Vector magnitude for mcell, gcell

• Award winning calibration and eCompass software

• 32 sample FIFO with burst read

Product Features

• 1.95 V to 3.6 V supply voltage, I/O 1.6 V – 3.6 V

• ±2 g/±4 g/±8 g accelerometer, ±15 Gauss Field range

• Output data rate (ODR) from 1.563 Hz to 800 Hz , 400 Hz hybrid

• 14-bit gcell data, 800 counts per Gauss

• Low offset drift: 0.1 mG per deg

• 4 channel motion detection- FF, Pulse, Transient, HPF, Tap


• Electronic Compass

• Scientific: Aurora Detection

• Industrial: Directional Drilling, mineral exploration

• GPS assist for Location Based Services

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External Use 20

Agenda










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External Use 21

Product Longevity

• Supply Assurance

− Enabling customers to design with confidence by identifying

hundreds of Freescale products – including those for the medical and

automotive markets – that offer assured supply

− The embedded market needs long-term product support *

− Freescale has a longstanding track record of providing long-term

production support for our products

− Freescale offers a formal product longevity program for the market

segments we serve

freescale.com/productlongevity * For terms and conditions and to obtain a list of available products

http://www.freescale.com/productlongevity

http://www.freescale.com/productlongevity

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External Use 22

Freescale Resources for

Smart Grids/Meters

• freescale.com/smartenergy

• freescale.com/metering

• Collateral: Smart Energy Brochure Application Notes

− White Papers

− Webcasts

− Training Material

− Smart Energy Blogs

http://www.youtube.com/watch?v=LEcgfqh-jIg

SMART ENERGY VIDEO




TM

© 2014 Freescale Semiconductor, Inc. | External Use

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