Case StudyPortable Wireless Network

for Emergency Response

System Components

Patrol Car Mobile Wireless Station

Investigating Personnel Control Center

System Infrastructure

Patrol Car Data, video and audio collected by the inspecting personnel are

transmitted to the patrol car via the secured wireless mesh network. Patrol Car then transmit the information to the Control Center via

Internet Virtual Private Network (VPN) is used to protect data transmit over

Internet Patrol Car and Mobile Wireless Stations are 2 or 3 km away. Management Software in the Patrol Car

manages the Mobile Wireless Stations and portable video devices used by the investigating personnel.

Sensitive data is protected by utmost security mechanisms including encryption, and authentication.

Mobile Station

Stored in unbreakable, watertight and corrosion proof outdoor enclosure

Battery charged and last for two hours. Advanced mesh feature allows all

access points to be self-configuring and self-recovering, such that no configuration and maintenance is required

Flexible 5.8GHz/2.4GHz dual radio design Could be carried or pull by wheels. LED display connection status

Portable Wireless Network

The wireless network is formed by a group of Mobile Wireless Stations.

Network can be quickly deployed and easily torn down

No power supply or access to public network is required

Self-configuring and self-recovering, zeroconfiguration and maintenance is required

Ideal for extreme whether condition Rechargeable battery can run

up to 2 hours

Benefits of Mesh Architecture

Self-Configuring and Self-recovering, automatically identifies most efficient routes

In the event that any AP becomes not available, adjacent APs recalculate and establish links with each other

Dual-radio design allows one radio focus on Wi-Fi access and other radio to perform mesh related tasks

Minimize configuration mistakes and maximize network uptime

Investigating Personnel

Mini video camera

Portable digital video recorder Portable wireless video server

Speak phone

Accessory Equipment

Mini video cameraWaterproof, shockproof

Graphic display resolution :480P

Portable digital video recorder Support 4G SD Card maximum

Waterproof, shockproof Rechargeable battery, 2.5-inch LCD screen

Video and sound input & output

Portable wireless video serverWaterproof design

IEEE 802.b / g Auto-connecting wireless mobility base station

D1 (720X480) / CIF (320X240) video output Support 820.1X data encryption

Rechargeable battery

Speaker phoneComply with 810C, D & E specifications.

2 minutes recording storage. Phone function / scan instructions.

Bleep alarm.

Control Center

Control Center

Information gathered by the patrol car is transmitted to the remote control center via Internet (3.5G).

Virtual Private Network (VPN) is used to protect data transmit over Internet.

With the GIS map, it can show all the patrol car position, direction and speed.

Retrieve all the instance video on the patrol car (including investigating personnel)

Save all the driving records for retrieving in the near future Control center can use far-end method to control the recorder’s

direction and zooming in the patrol car Video transmit resolution is D1(720*480) and 10 shots per second

Patrol Car Infrastructure

Speed Doom

360 degree rotation integration camera. Overhead console flip-down mounting bracket, height is only

430mm 6mm thick stainless steel materials. Comply with IP68 standard 18 or 36X optical zoom

Waterproof Camera for Car Use

Camera for car use 2.27mm Wide Angle Lens Resolution 420 degree Waterproof IP 67 Adjustable brightness Diagonal: H:122° V:91°

Digital Recorder for Car Use

Shockproof design, specially design for car use Input voltage 9 ~ 30V, prevent equipment breakdowns All in one design， not mainframe computer ,embedded system，

non-Microsoft Windows system, ensure the system stability Up to 60 shots per second Support plug and play hard disk

Wireless Management Station

Manage all the wireless devices, including wireless base stations in the patrol car, mobile base stations, wireless video transmitter and PDA taken by investigation personnel

Security mechanisms(VLAN,802.1x) are implemented Built-in RADIUS server, provide network user certification Built-in Two 10/100/1000BaseT Gigabit Ethernet ports and 8 IEEE 802.3

10/100BaseT Fast Ethernet LAN ports Support Layer2, Layer3 data management Virtual Private Network (VPN) is used

to protect data transmit over Internet

System Summary

Simple operation, require minimal training. The entire system can be quickly deployed and easily torn down. Digital video processing can work well with other IP devices System automatically connect, the video data can be transmit back

immediately Real-time video allows many people sharing simultaneously Camera angles and multiples can be adjusted remotely in the

remote area Waterproof, corrosion proof design for extreme weather conditions Scalability and extensibility, additional mobile base stations and

wireless video transmitter can be added at any time.