Toshiba IKS-WB9518 Handleiding
Pagina's 4 Engels Bewakingscamera
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Pixels Per Foot
A beginner’s guide to PPF
What is the role of PPF in selecting an IP camera?
Ensuring high quality surveillance IP video can be a challenge — beginning with specifying cameras to achieve the level of quality
needed for operational requirements. The traditional way of specifying surveillance cameras was by resolution, for example
selecting a 1080p model over a 720p for a critical area. However, this method has proven inexact, resulting in too much or too lit-
tle quality. A newer, more accurate way is to specify pixels per foot (PPF) density. While some may find this new method confus-
ing or complex, the mathmatics behind it are actually quite simple as this brief will explain.
CALCULATING PPF
The formula for calculating PPF is . Let’s look at an example: the installer has aHorizontal Pixels divided by Field of View width
2MP IP camera with a resolution of 1920 (H) x 1080 (V). The Horizonal Field of View for the area being monitored is 100 feet wide.
Therefore, PPF is 19.2 based on 1920 divided by 100. But is 19.2 PPF enough? Is it too much? Let’s look:
Toshiba America Information Systems, Inc. Surveillance & IP Video Products www.toshibasecurity.com ||
19.2 PPF40 PPFMore than 40 PPF
Image lacks detail with
little or no facial feature
recognition and a non-
readable license plate.
Not all facial features
can be made out. Plate
numbers can be read
but not state.
Clearly can see all
facial features, and can
read license plate num-
bers and state.
Obviously, the more pixels, the higher the resolution and the easier it is to recognize faces and license plates. The down-
side is that higher resolution requires more bandwidth and storage space.
Product specificaties
| Merk: | Toshiba |
| Categorie: | Bewakingscamera |
| Model: | IKS-WB9518 |
| Kleur van het product: | Wit |
| Gewicht: | 395 g |
| Breedte: | 79 mm |
| Hoogte: | 52 mm |
| Soort: | IP-beveiligingscamera |
| Maximale capaciteit van de geheugenkaart: | 64 GB |
| Ondersteund audioformaat: | G.711, G.726 |
| Ondersteunde videoformaten: | H.264, M-JPEG |
| Stemcodecs: | G.711, G.726 |
| Vormfactor: | Doos |
| Ondersteuning voor plaatsing: | Binnen |
| Connectiviteitstechnologie: | Bedraad |
| Ethernet LAN: | Ja |
| Montagewijze: | Muur |
| Ondersteunde video-modi: | 240p, 480p, 720p, 1080p, 2160p |
| Maximum resolutie: | 3840 x 2160 Pixels |
| Videocompressieformaten: | H.264, M-JPEG |
| Stroomuitvoer (volt): | 12 |
| Minimale belichting: | 0.005 Lux |
| Aantal cameras: | 1 |
| Geïntegreerde geheugenkaartlezer: | Ja |
| Compatibele geheugenkaarten: | MicroSDXC |
| Nachtvisie: | Ja |
| LED-type: | IR |
| HTTPS-encryptie: | Ja |
| Aantal Ethernet LAN (RJ-45)-poorten: | 1 |
| Vermogensverbruik (max): | 8.5 W |
| Certificering: | FCC, UL, cUL, ITE |
| Volledige HD: | Ja |
| Omvang optische sensor: | 1/1.9 " |
| Type beeldsensor: | CMOS |
| Interface: | RJ-45 |
| Witbalans: | ATW, Auto, Manual |
| Audio-ingangen: | 1 |
| Audio-uitgang: | 1 |
| Password bescherming: | Gebruiker |
| Ondersteunde grafische resoluties: | 320 x 240,352 x 240,640 x 480 (VGA),720 x 480,800 x 600 (SVGA),1024 x 768 (XGA),1280 x 1024 (SXGA),1280 x 720 (HD 720),1920 x 1080 (HD 1080),3840 x 2160 |
| Bekabelingstechnologie: | 10/100Base-T(X) |
| Netwerkstandaard: | IEEE 802.1x, IEEE 802.3af |
| Ondersteunde beveiligingsalgoritmen: | HTTPS, SNMP |
| Ondersteunt Windows: | Windows 7 Professional, Windows 7 Professional x64, Windows Vista Business, Windows Vista Business x64, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64 |
| Aantal gebruikers: | 20 gebruiker(s) |
| Lengte: | 148 mm |
| Maximaal 30 frames per seconde: | 25 fps |
| Ondersteunde netwerkprotocollen: | IPv4, IPv6, TCP/IP, HTTP, HTTPS, UPnP, RTSP/RTP/ RTCP, IGMP, SMTP, FTP, DHCP, NTP, DNS, DDNS, PPPoE, CoS, QoS, SNMP, and 802.1X |
| Ethernet interface type: | Fast Ethernet |
| Quality of Service (QoS): | Ja |
| Power over Ethernet (PoE): | Ja |
| Dag/nacht modus: | Ja |
| Maximum aperture number: | 1.8 |
| Video uit: | 1 |
| Bewegingssensor: | Ja |
| Infrarood (IR)-afsluitingsfilter: | Ja |
| Wide Dynamic Range (WDR): | Ja |
| Bedrijfstemperatuur (T-T): | -10 - 50 °C |
| Relatieve vochtigheid in bedrijf (V-V): | 0 - 90 procent |
| Privézone maskeren: | Ja |
| Type waarschuwingsnotificatie: | |
| Lens mount interface: | C mount, CS mount |
| Actieve ombevoegde demontage alarm: | Ja |
| Automatische versterking control: | Ja |
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