Bms overview

ملخص عن نظام bms ومكوناته

1. Building
Management
System
An Overview to BMS

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What is BMS?
-
A micro-processor based system which centralizes and simplifies…
Š
controlling
Š
monitoring
Š
operation and…
Š
management
…of heating, air-conditioning, ventilation & other building services to
achieve…
» safe and comfortable working environment
» energy saving & efficient operation
» at reduced time & cost

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File Number
BMS provides…
Comfortable & safe environment
for your building
by controlling…..
Š
Air Handling Units
Š
Fan Coil Units
Š
Chillers
Š
Pumps
Š
Boilers
Š
VFD’s
and many more…..

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File Number
Components of BMS -
Centralized WorkStation Computer
Š
With powerful user-friendly software.
Š
Used for everyday building operation.
-
Field devices
Š
Temperature, Humidity, Pressure sensors
Š
Valves, Actuators
-
DDC Controllers
Š
Micro-processor based
Š
Pre-configured / Freely programmable
Š
Controls the HVAC equipment of the building

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File Number
LOG-IN
BMS Features….
•Man / Machine Interface
-
interact with the connected
technical building equipment.
-
user friendly
-
for operators…
-
engineers….
-
and building managers
•System Security
-
To prevent unauthorized use
-
Password protection
-
Operator specific access
-
Operator log summary

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File Number
BMS Features….
•User-friendly data presentation
-
co-ordination of the flow of
information through the system by
implementing customized graphics.
-
floor plans of the building
-
graphical representation of the
equipment.
•Alarm Management
-
the presentation in the sequence of
importance and time of..
Š
potentially dangerous situations
Š
process value deviations
-
guiding the operator to take
appropriate action through..
Š
audible and visual indications
Š
Email, SMS
-
alarm summary
Š
Time, date, priority and description

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File Number
BMS Features…. •Reporting
-
present customized subsets of
data
-
actual or historical state
-
export as a word or excel
document or..
-
to a printer.
•Data Logging
-
The automatic gathering and
storage of data from the field
equipment for later analysis and
reporting
-
Dynamically or historical
-
Customized charts and graphs
-
Tabular reports

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File Number
BMS Features…. •Time Scheduling
-
time-based start/stop of the
equipment
-
saves energy cost and efficient
operation
-
effective for lighting, occupancy
control
-
can be as daily, weekly, for holidays
or events
•Event recording
-
automatic logging of…
Š
operator activities and commands
Š
processes related to connected
devices
Š
workstations and printers.

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File Number
BMS Features…. •Remote connectivity
-
provide remote access to
the system with full
functionality through..
Š
local area network
Š
dial-up
Š
internet via web browser

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File Number
BMS Benefits…. •Improved indoor environment
quality
-
Comfortable living and working
environment – domestic or
commercial
-
Better temperature and humidity
control
-
Good air quality
•Faster response to ..
-
occupant needs
-
end-user complaints
-
trouble conditions

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BMS Benefits…. •Maintenance Savings.
-
efficient control gives less wear and
strain of mechanical equipment.
-
provides longer life
-
runtime monitoring alerts timely
maintenance of equipment
-
avoids expensive failures
•Energy Savings
-
eliminates unnecessary system
operation.
-
accurate energy usage information
-
helps you to take steps to reduce
energy consumption like…
Š
Optimum-Start
Š
Night-Purging
Š
Time-Scheduling

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BMS Benefits….
Consolidated facility control… -
One point centralized operation
-
Simpler operation
-
Reduces time and resources
•Reduced operator training
-
on-screen instructions
-
user-friendly graphic displays
-
simpler operation programmed for
routine and repetitive operation

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BMS Benefits…. •Improved management reporting
-
Provides valuable real-time data
-
Creates reports, charts…
-
Critical information immediately sent
to printers, emailed
-
or sent via SMS
•Timely and effective control
-
alerts your employees when your
facility is not operating correctly
-
reduce troubleshooting and down
time.
-
Remote access connectivity without
site visits.

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BMS Benefits…. •Performance Benchmarking
-
Facilitates the overall system
performance measurement
-
Comparison with set benchmarks

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File Number
Almost all applications in building automation are based on a
common functionality
I/O functions
(field devices)
Processing functionsManagement functionsOperator functions
Paging
Help
Operation
Set point range
Calculation
y = f(x)
Closed loop ctrl.
Recording
Supervision
Networking
Alarming
Operat.hours
0 0 0 9 7 8 h
Backup power
control
Counting
Characteristics
Measuring
J
Time program
Techn. alarm
Maintenance
Engineering
Interlocks
Peak dem. limit
kWh
s0 0 2 9 7 3 8
Safety alarm
Data analyses
Man. operation
Positioning
M
Reporting
+-
Signaling
Switching
M
Documentation