Transcript Model 16001 Microwave Intrusion Detection Link

DreamBox
Basic Features,
Functions, Benefits
Competitive Aspects
DreamBox (DB): Theory (1)
Embedded system that include a high level software program to
create products, like: workstation, recorder, player, intercom,
video-switcher, etc.
ITEMs are identified (item model, no central server)
Each ITEM is identified by: the DB number (the item is connected
to), type (e. g. camera), and hardware ID
For each ITEM functionalities are defined and are connected to an
icon on the VGA screen
Each icon is colour coded to identify its status (e. g. pink=on hold;
red=alarm; yellow=hardware problem) 14 colours are assigned.
(The operator of the DB must not be colour blind)
DreamBox (DB): Theory (2)
Each ITEM has the following functions:
• Status
– colours
• Commands (e. g. disable)
– General or common
– Specific
• Set-up
– Properties (common or specific)
When selecting a function the list of choices appear in
command window on the left of the screen (Outlook-Bar
window)
Examples for a common command: create alarm for training or
guard supervision, Reset Alarm, Disable etc.
Access to all or specific items is authorised by password (128
accounts per DB unit)
DreamBox (DB): Special Features (1)
• Self Test (alarm in case of malfunction; type of malfunction)
• Each DB has 8 video inputs, 32 VMD channels and 64
channels for 64 recorders
• A user (with proper authorisation) can make system set-up
or changes from his UWS (User Work Station) to all other
DB’s in the network
• Set-up and changes can be performed whilst the system is
operating (Update without restart!)
• Set-up is fast and efficient (e. g. about one man-day for 100
ITEMs)
DreamBox (DB): Special Features (2)
• A network of DB’s constitutes a “Distributed Database”,
many “micro servers” ; therefore:
• No single point of failure (as in a single server; a server is
like a locomotive to which more wagons are added, in case
the network is enlarged = Pseudo-modularity, because the
network becomes slower.)
• DB network = True modularity (with each new DB an
additional locomotive is added)
• On each DB up to 11 monitor items can be selected, each for
a different camera picture :
– 1 full screen monitor and 1 full screen VGA (simultaneously), or
– Up to 4 quad pictures on both the monitor and the VGA
(simultaneously); plus one small QCIF picture on the monitor
DreamBox (DB): Data Management (Data Base SQL)
(1)
There are three (3) Ways to store data/ pictures/ clips:
Real Time data base
Archive data base
Video and Audio data base
• All data are managed through a common data base of all DB’s
(Distributed Database Concept)
• Propagation of messages between the DB’s in a network operates
via the Network Time Protocol (NTP) based on GMT (it works like
communicating tubes)
• Consequently: All DB’s have all set-up data
• The operator of the network can have access to all data in all DB’s
from any one DreamBox!! (Of special interest with remote DB’s)
DreamBox (DB): Data Management (2)
The following types of data exist:
• Messages (e. g. alarm, short and fast)
• Files (large, but slow and certainty of complete transmission)
• Streams (e. g. pictures – via UNI direction protocol, udp; continuous and fast,
but some may be missed to be grabbed)
Sources and Targets can be (virtually) connected; example for
• Sources: camera, player, TTL (in), microphone, analogue in,
monitor, etc.
• Targets: recorder, monitor, TTL (out), speaker, analogue (out)
DreamBoxes constitute a Virtual Matrix (switch time and latency are
extremely short)
DreamBox (DB): Data Management (3)
• Video picture quality is determined by:
Resolution, frames per second (FPS) and the bit rate (bits
per sec)
(Bit rate must be specified, otherwise the quality is bad,
even though the specification of resolution and FPS was
met!)
• The DB has D1 resolution, up to 25 FPS (per
camera channel and 1000 bit/sec (1 DB unit can
process 48Mbps). Typical bit rate Per channel are :
Broadcast
Security
CIF @ 25fps
0.5Mbps
0.2 Mbps
D1 @ 25 fps
4Mbps
2Mbps
DreamBox (DB): Data Management (4)
• Items can be automatically connected (touring as
Macro): different sources to different targets
(e. g. in case of alarm the pictures/ clip are shown simultaneously
on the same monitor from the
– alarm-camera, the
– camera before the alarm-camera in alarm, the
– camera on the other side of the alarm-camera, and
– the video clip with pre- and post alarm sequence)
• Touring can be triggered automatically by an event
(e. g. alarm), by pre-set times, or by the operator
(dry contact, e.g. panic button)
DreamBox (DB): Recording and Playing (1)
Each picture is transmitted from the DB (via encoder, DSP in
MPEG 4 format) to:
•
•
•
•
one of the two Hard Disks (500GB each); 64 channels
the monitor (via decoder, DSP, MPEG 4)
the VGA-monitor (via decoder, DSP, MPEG 4)
the Network of other DB’s
Max. rate of transmission per DB: 100 Mb/sec full duplex
DreamBox (DB): Recording and Playing (2)
Task is to transmit e. g. 10 GB recording (file) via the
network to
• Conventional server: File (50% more for transfer
protocol) uses 100% bandwidth of 100Mb/sec and
blocks the line
– Disadvantages:
– Benefit:
- wait for buffering
- incoming alarms will be much delayed
- short transmittal time (about 10 min)
DreamBox (DB): Recording and Playing (3)
Task is to transmit e. g. 10 GB recording (file) via the
network to
• DreamBox network: Picture stream at 1 frame per
40ms (=Max 4Mb/s) is transmitted through the
network (patented)
– Disadvantage:
- Delivery of the stream takes long time
– Benefits: - remotely controlled player
- Use of only 4% of bandwidth
- Can deliver clip instantly (see above)
- Can record in parallel
(e. g. to archive)
DreamBox (DB): Recording and Playing (4)
Following types of video/ audio recorder modes:
• Manual (definition of number and length of clips; Example:
max. 1GB buffer storage – When the buffer is full then it waits
for the user to empty it.
• Event (pre and post alarm clips;
limit number of clips;
afterwards FIFO)
• Laps (continuous recording,
with reduced number of frames)
Typically,
when little movement:
one i-frame and 100 p-frames
when lot of movement:
one i-frame and 20 p-frames
• Continuous (continuous recording, 25 FPS; FIFO)
• Super Real-time (transmits 8 times faster on recorder)
Network Aspects (1)
• IP-cameras consume a lot of band-width
• Existing IT-networks (e-mail, intranet, intercom, time
management, etc.) should not be shared with the security
system: alarm delay! (if avoidable; normally one or two FOcables are spares) No attack from “hackers”.
• Provision of band-width cost infrastructure, i. e. money
• To save money, variable bid rate could be used
• To store pictures and audio sequences inside the DB does
not consume band-width
• DB has inside switches, routers and FO-connectors (FOcable: 2 km with multimode, 11 km for single mode
(recommended)
• Each DB is a repeater
• Closed loop provides redundancy in case of cut of data line
or “crash” of one DB.
Network Aspects (2)
DreamBox (DB): Site Planning
• Questionnaire for site requirements: (number of cameras, number of
workstations, number of audio inputs/-outputs, maximum storage, etc.) the
maximum requirements determines the number of DreamBoxes
• DB’s can be placed close to the cameras
• From each DB any other DB can be accessed
• Highly efficient and fast
• Within the DB-network videophones
can be created
• E-mails can be sent (only) via the internet
Video Motion Detection - VMD (1)
• Quality of a VMD-system determined by:
– Number of detection cells (group of pixels)
– Frame rate
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•
•
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•
Total number of detections cells is more then 25000
120 frames per second (FPS) for DB
From 1 to 25 FPS per camera
Each DB has 32 VMD channels
The DB-VMD detects movements by comparison to a
reference picture (not against a library)
• Content analysis:
– Rules are defined
– Intruder behaviour analysis
– Different algorithms in same camera for various parts of the
camera view
Video Motion Detection - VMD (2)
Video Motion Detection - VMD (3)
• VMD set-up from pictures of camera, monitor, or player
• Target is detected and a tracking overlay is attached
• Up to six targets can be tracked (different colours) per camera
• Special filters for e. g. rain, clouds, snow to reduce NAR
• Setting of logical sequences
• Alarm when camera has no picture (e. g. blocking by object, fog)
• Definition of direction of movement
• Definition of target speed
• Definition of target size
• Slow motion detection: 25 m per hour (crawling)
• No-motion detection (“museum”)
Global CCTV (1)
The system connects positions on the site map to real World
Coordinate (GPS positions) and is providing the following
features:
• The PTZF-camera automatically turns onto the target of any
VMD-camera, and follow it such that the intruder’s face is in
the centre.
• The field of view of each camera can be shown on the map
Global CCTV (2)
• Clicking into the field of view of a camera shows its picture
immediately. In case of overlap between cameras the one
that can show the biggest intruder will be selected.
• The track of an intruder can be shown on the map.
• The respective camera seeing the intruder shows on the
monitor automatically (“camera director”).
• Depending on which camera is viewing the intruder, the
recording could be pre-selected (“recorder director”).