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Meter, Meter Reading Instrument (MRI) and Base Computer Software for Meter Data Management (MDM) Vivek Pathak Secure Meters

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Meter, Meter Reading Instrument (MRI) and Base

Computer Software for Meter Data

Management (MDM)

Vivek Pathak

(2)

11/10/2010 2

Technologies have evolved

over a period of time

(3)

Conventional meters

• Meters conventionally measured a single quantity

– kWh

– kVArh

– kVAh

• Meters were used for commercial purpose, (record

consumption and bill to consumer)

(4)

11/10/2010MDI PSEB 28th January 20094 4

This was the meter in good old days

This was the meter in good old days

(5)

The modern meter

has evolved over

time

(6)

11/10/2010 6

They give much more than energy

“readings”

…they churn out a lot of

data

Today’s

meters are

data loggers

Today’s

meters are

data loggers

(7)

Each meter can log a lot of

data

Each meter can log a lot of

data

Data is useful, only if it is

purpose oriented

Data is useful, only if it is

purpose oriented

(8)

11/10/2010 8

Yesterday

• Single parameter (kWh)

• Single reading

• Manual reading

– Error prone

• Manual computation

• Multiple parameters

• Multiple readings (load

survey)

• Electronic reading

– Less error prone

• Computers aid

computations

Today

Error prone again!

(9)

Advantages of electronic meters

• More accurate than electromechanical meters

They are data loggers & log time stamped data

They are data loggers & log time stamped data

They are read electronically & human errors eliminated They are read electronically & human errors eliminated Remote reading is possible (LPR, PSTN, GSM, GPRS)

Remote reading is possible (LPR, PSTN, GSM, GPRS)

(10)

11/10/2010 10

Yesterday, with electro

mechanical meters

Yesterday, with electro

mechanical meters

Manual reading Manual reading

Consumption determined locally Consumption determined locally

Today, with modern

electronic meters

Today, with modern

electronic meters

Read electronically, not from display

Read electronically, not from display

Consumption determined from computer, far away from meter Consumption determined from computer, far away from meter Software (BCS) needed for data extraction

Software (BCS) needed for data extraction

Complicated tariffs Complicated tariffs

This only extracts data from the meter

This only extracts data from the meter

(11)

Metering system software

meter has a large

amount of data, not

practical to read using

display, better to read

Electronically

meter has a large

amount of data, not

practical to read using

display, better to read

Electronically

Third party application

software or services are

now needed

Third party application

software or services are

now needed

Software supplied by

meter manufacturers is

not sufficient for

deriving information

from the data

Software supplied by

meter manufacturers is

not sufficient for

deriving information

(12)

11/10/2010 12

Over view of Electronic meter

Engineering plastic enclosure, better aesthetics

LCD display with Backlight

Button for reverse scrolling

Button for display scrolling / scroll lock

Front side sealing arrangement Calibration LED Inductively coupled PPU Optical Port for electronic reading Terminal Block Extended terminal Block (Transparent) Rating plate

(13)

Information available in modern

electronic meters

(14)

11/10/2010 14 Scrolls automatically Scrolls automatically Displays parameters for consumer viewing Displays parameters for consumer viewing Can be viewed from window when meter is sealed Can be viewed from window when meter is sealed Information is of consumer interest Information is of consumer interest Can be accessed by meter reader Can be accessed by meter reader

To see history data & tamper information To see history data & tamper information

Useful to identify meters that need closer investigation Useful to identify meters that need closer investigation

Display & logged parameters

• Information in electronic meters can be classified as

– Display mode

• Auto display (for quick reference)

(15)

• Information shown on the display of electronic meter

Display Parameters

Self diagnostics Self diagnostics

LED Segment check LED Segment check Battery & NVM health Battery & NVM health RTC date & time

RTC date & time

Instantaneous parameters Instantaneous parameters V, I, PF, kW, kVAr etc. V, I, PF, kW, kVAr etc. Power On/Off hours Power On/Off hours Rising demand with elapsed time

Rising demand with elapsed time Tamper information Tamper information Missing potential Missing potential Current reverse Current reverse TOU definition TOU definition TOU wise MDs TOU wise MDs 6 or 12 history data 6 or 12 history data

(16)

11/10/2010 16

Logged Parameters

(17)

These are electrical parameters as seen by meter at the time of reading or can be read locally using MRI

These are electrical parameters as seen by meter at the time of reading or can be read locally using MRI

Can cover Voltage, Current, PF, kW, kVAr, kVA etc.

Can cover Voltage, Current, PF, kW, kVAr, kVA etc.

They are interpreted & displayed in They are interpreted & displayed in

• Capacity to log parameters is a key feature of electronic

meters

• Logged parameters can be categorized as

– Instantaneous parameters – Billing information – Load survey – Events or tampers – Transactions

Logged Parameters

(18)

11/10/2010 18

• Capacity to log parameters is a key feature of electronic

meters

• Logged parameters can be categorized as

– Instantaneous parameters

– Billing information – Load survey

– Events or tampers – Transactions

These are based on tariff type programmed to meter

These are based on tariff type programmed to meter

These are packets of information on billing parameters like energy, MD etc. for each billing cycle

These are packets of information on billing parameters like energy, MD etc. for each billing cycle

They are also interpreted & displayed in the BCS

They are also interpreted & displayed in the BCS

(19)

• Capacity to log parameters is a key feature of electronic

meters

• Logged parameters can be categorized as

– Instantaneous parameters

– Billing information – Load survey

– Events or tampers – Transactions

They are periodic interval-wise

information, intervals known as SIP They are periodic interval-wise

information, intervals known as SIP SIP is typically ½ hour for

consumer meters & ¼ hour for boundary meters

SIP is typically ½ hour for

consumer meters & ¼ hour for boundary meters

(20)

11/10/2010 20

• Capacity to log parameters is a key feature of electronic

meters

• Logged parameters can be categorized as

– Instantaneous parameters

– Billing information – Load survey

– Events or tampers – Transactions

These are simply illogical electrical events as seen by meter

These are simply illogical electrical events as seen by meter

The correct way is to refer to them as “events” and not “tampers”

The correct way is to refer to them as “events” and not “tampers”

No meter can be called

“tamper proof” meter

No meter can be called

“tamper proof” meter

Logged Parameters

Modern meters have 3 types of tamper related features

Modern meters have 3 types of tamper related features

Tamper proof features Tamper proof features Tamper deterrent features Tamper deterrent features Tamper evident features Tamper evident features

They are never a

conclusive proof that a

consumer has tampered

(21)

• Capacity to log parameters is a key feature of electronic

meters

• Logged parameters can be categorized as

– Instantaneous parameters

– Billing information – Load survey

– Events or tampers – Transactions

They are interchange of information between meter & MRI

They are interchange of information between meter & MRI

They include change of tariff

programme in meter, definition of kVArh & kVAh, resetting MD,

changing date/time etc.

They include change of tariff

programme in meter, definition of kVArh & kVAh, resetting MD,

changing date/time etc.

(22)

PREPARED BY: Kailash Jain

11/10/2010 22

(23)

What Is MRI ?

• Hand Held Unit (HHU) for Meter Reading.

– Small, compact DOS or Windows Computer, PDA

• Capable to communicate with :

(24)

11/10/2010 24

Uses of MRI

„ Data collection from Meter

„ Can read different make meters with Common

MRI (CMRI)

„ Instantaneous Parameters checked by

install-check S/w

(25)

Features Of MRI

• Battery operated Instrument.

• Comprises of :

ƒ

A Keypad.

ƒ

LCD Display.

ƒ

Communication Ports.

ƒ

Charger Connector.

• Pre – loaded Software

.

(26)

11/10/2010 26

Analogic MRI

45 Key Membrane Keypad

¾ 4-6 MB for data storage ¾ 2 MB for program

storage

¾ 16 line display ( 16 *24 ) ¾ 100% PC Compatibility in a

Rugged Hand Held ¾

¾ Runs MS-DOS and Virtually any PC Program

¾ PC Communications Software at up to 115K bps

¾ Optional second RJ-11 Port through built-in LCD Screen Power/Resume Switch & Status LEDs

(27)

RS 232 Port RJ-11 Port Charger Pin

Communication Ports, Optical Cord

& Charger

(28)

11/10/2010 28

MRI - Battery

¾ Environment friendly battery ¾ Line or battery powered

¾ Quick charging

¾ Light weight charger

¾ One can use the MRI even when charger is connected ¾ Battery self discharge rate is low.

¾ With survey reads 200 meters data & without survey reads 400 meters data for 8 MB. (Depends on memory size)

(29)

MRI - Software

¾ Before meter reading battery healthy condition can be

checked.

¾ Allows local reading of Electrical parameters and display

of vector diagram

¾ Displays Energy values, used for meter testing on site.

¾ MRI is a computer, programmed as “dumb terminal or

(30)

11/10/2010 30

Menu Visible on MRI Screen

1 SEMS 2 SEMS-CHK 3 L&T 4 PHASOR

5 DUKE 6 BATLEVEL Pressing Option-1

for Secure Meter

0 . Quit

1.Read Meter Data 2.Dump Data 3.Read Energy 4.Calibration 5.Terminal 6.Space 7.Identification No 8.Load survey Days

(31)

Electronic Meter Reading Methods

ƒDirect Reading through MRI.

ƒReading by Low Power Radio.

ƒReading by GSM/GPRS/PSTN.

(32)

11/10/2010 32

Electronic Meter Reading Methods

•Direct Reading by MRI

Communication Cable

Electronic Meter MRI compatible with

Meter Vendor software

Power Pack unit used when Power is off to power up meter

Meter data is stored in MRI

Meter data is stored in MRI

Meter reader required to read meter at a particular location Meter reader required to read meter at a particular location

(33)

Meter Data Downloading

• After Reading the Meter its Data can be

downloaded in respective BCS( Base

Computer Software).

• This data contains all the data like

Instantaneous, Billing, Load Survey, Event

& Transaction data.

(34)

11/10/2010 34

Base Computer Software (BCS)

Meter make

BCS

1. Secure

Smart2k

2. L&T

Vincom

(35)

SMART 2000

(36)

11/10/2010 36

Overview

¾ Smart 2K Stands for Secure Meters Analysis & Reporting Tool.

¾ SMART 2000 is BCS (Base Computer Software) part of Integrated metering system

• Energy Meter

• BCS ( Base Computer Software) • MRI ( Meter Reading Instrument)

¾ It records energy, electrical parameters, tamper and load survey data. ¾ It collects data from the meters using MRI or with modem & telephone

line (RMR).

¾ These data may be used for analysis and monitoring with the help of Smart 2000 analysis and report tool.

¾ Smart 2000 works on Windows platform. Older version working on DOS was Sems Pack.

(37)

¾ Gives logical view of all the meter reading data according

to various parameters like:

• Instantaneous parameter,

• Current energy & bill energy data,

• Time of day energy register data,

• MDs,

• Abnormal electrical condition data

¾ Perform various other operations called transactions on

the meter like Authenticated MD reset, update Date &

Time, Tariff, etc.

¾ Organized storage of meter reading data and consumer

(38)

11/10/2010 38

Features (Contd…)

¾ Exporting the meter data in the industry standard common formats (like ASCII, CSV) so data can be used by other software for billing or otherwise.

¾ Load survey information is displayed graphically whereby user has an option to see multiple parameters on the same graph or on a separate view.

¾ All the information displayed on the screen can be printed and permanent record can be maintained.

¾ Customer can choose what is to be printed. Selection • on category such as Energy, Survey, Transaction, etc

• or on subcategory such as Main energy, Bill energy, TOD energy, history of energy registers etc.

(39)

Smart 2000

(40)

11/10/2010 40

Main Menu

Status Bar Left Side Window

Right Hand Side Window Centre Window

(41)
(42)

11/10/2010 42

(43)
(44)

11/10/2010 44

(45)

Meter Selection

Reading Date, Consumer Detail and MRD Path of Selected Meter

(46)

11/10/2010 46

Analysis Report

To view the following parameters double click on the selected meter’s MRD file: ¾ Instantaneous Parameter ¾ Energy Values ¾ Load Survey ¾ Events Report ¾ Transaction

(47)

We can view Instantaneous Parameter in two different ways ¾ Tabular View

• Date & Time • Frequency • Voltage • Line Current • Active Current • Reactive Current • Power Factor

• Active Power, Apparent Power, Reactive Power

(48)

11/10/2010 48

(49)

View - Energy Values

Divided into three category - General, Energy & Demand ¾ General is divided into seven different view

• General, Bill Dates, Flags, Power ON/OFF, Power Factor, TOD PF, Tamper Count.

¾ Energy

• Main energy, TOD energy, Consumption, Mid-Night data, TOD consumption.

¾ Demand

(50)

11/10/2010 50

(51)
(52)

11/10/2010 52

(53)
(54)

11/10/2010 54

6 no. History’s cumulative Energy is present

(55)

History 1 TOD

Registers-View - Energy Values

(56)

11/10/2010 56

Consumption between two Histories

(57)

Max Demand for History 1 with date and time

(58)

11/10/2010 58

Daily Energy values at midnight

View - Energy Values

(59)

¾ With Mouse movement on the graph we could see particular IP value ¾ Keep the scaling fixed from page to page

¾ Select the color of your choice ¾ Select the graph of your choice

¾ Convert load survey data into text file

¾ Five different graphs – Demand, Energy, Voltage, Current, Power Factor.

(60)

11/10/2010 60

View – Load Survey

No. of Parameter Depends on meter Clem and

(61)
(62)

11/10/2010 62

(63)
(64)

11/10/2010 64 ¾ Could see the following tamper of your interest:

• R-Ph, Y-Ph, B-Ph missing potential • R-Ph, Y-Ph, B-Ph missing current • Power Failed

¾ See tamper with snapshot & summary details such as tamper count & duration for which meter has remained under tamper

¾ Convert the tamper data into text file

(65)
(66)

11/10/2010 66

(67)
(68)

11/10/2010 68

Convert Wizard

(69)

Why Convert Wizard is used

• Converted files of meter data can be opened

in notepad or MS-Excel for further analysis.

• Multiple meters converted files are large in

number which may further be imported in third

party software to get metering information

(70)

11/10/2010 70

Main Menu - Data

Check

parameter which is to be

(71)

Converted Data file- Load Survey

Each Half hour 8 no. Parameters are logged

(72)

11/10/2010 72

Converted Data file- Tamper Event

B Phase voltage at occurrence and restoration of event

B phase missing potential is easily seen with time stamped

(73)

Converted Data file- Instantaneous

(74)

11/10/2010 74

Converted Data file- Energy

History 1 parameter along with billing date and time , billing energy and billing MD may be found

(75)
(76)

11/10/2010 76

Converted Data file- Transaction

(77)

System Configuration

¾ Operating Systems: Window 98 , Window 2000, Windows XP ¾ Minimum hardware configuration:

• Celeron 550 MHz / P-III based PC with 64 MB of RAM.

• 20 GB hard disk space for software and for storing meter reading data.

• A color monitor with 1024 X 768 resolution is required.

• CD drive (32X or higher) is required to install the software.

(78)

11/10/2010 78

SMART2K - Benefits

¾ Security

¾ Uses unique security keys to validate meter data for its authenticity.

¾ Create levels of user with different rights.

¾ It has its own database where consumer, metering

information like meter no, CT PT ratio , address and EMF

can be stored.

¾ Used for meter data analysis.

¾ Backward compatibility for all the meters made by SML

¾ Meter reading

¾ Direct meter reading without MRI can be done ¾ Manual / automatic reading at predefined time ¾ Modem sharing possible

(79)

SMART2K - Benefits

¾ Export meter data

¾ Select what is to be exported

¾ Field width, Decimal digits, Order in which parameter should appear etc

¾ File format such as text file, spreadsheet file, database file etc

¾ Back up facility of Meter database and Meter data files

¾ On line data monitoring can be done.

(80)

11/10/2010 80

References

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