Features And Specifications; Overview; Function - Dahua HFD23 User Manual

1 Features and Specifications

It is to introduce product features, applications and functions.

1.1 Overview

This series mobile DVR is a mobile video surveillance product based on the new platform.

It Integrates image process technology, wireless network, satellite positioning, vehicle
information sampling and process technology and so on together.

Uses strong aluminum alloy case and built-in 2.5-inch HDD and one SD card as the storage
media. It supports built-in 3G/4G, Wi-Fi wireless transmission mode and positioning module.

Installed on the vehicle such as car or ship, it can realize local audio/video storage and
vehicle information sampling, at the same time it can transmit real-time video and vehicle
information to the remote management center and establish real-time remote wireless
surveillance management system.
It has the following features:

Mobile power.
Built-in mobile power source (DC 6V-36V), suitable for 12V/24V vehicle. It has overload
protection, low voltage protection short-circuit protection and over current protection.

High anti-shock design
It adopts general anti-shock design such as mechanical anti-shock measures, electronic
anti-shock measures, and patent software anti-shock measures. It integrates device
anti-shock and general anti-shock mechanism together.

No fan design
The traditional fan design has the noise, easy to get dust, water and has high power
consumption. No fan design is the tendency in current high-end vehicle electronic product.
This series DVR can be widely used in many vehicle areas or mobile surveillance areas such as
long-distance passenger transport, city public transportation, public security system, road
administration, logistics vehicle.

1.2 Function

Note

Slight difference may be found due to different series products.

GPS, Wi-Fi, 3G/4G function are optional. Please make sure you purchased product support
these functions.
Function
Storage
Compression
Backup
Note
Special data format to guarantee data security and can avoid vicious
data modification.
Multiple-channel audio and video signal. An independent hardware
decodes the audio and video signal from each channel to maintain
video and audio synchronization.

Support backup operation via USB port (such as flash disk,
portable HDD)

Client-end user can download the DVR file to local HDD to
backup via network.
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