Overview of the DVR Blackvue DR750LW-2CH
The Korean manufacturer http: //
www.blackvue.co.kr/Prod/DR750LW-2CH.asp, drastically changed their marketing policy in order to oust the manufacturers of DVRs with a touch screen.
Blackvue DR750LW-2CH trying to change the rules of the game. The biggest difference is that the previous cylindrical design was replaced by a 4-inch LCD touch screen.
Package Includes:
Blackvue DR750LW-2CH consisting of two cameras
Fastening for quick removal
Power cable
Coaxial cable to connect the rear camera
Memory card 16 GB (MLC)
Documentation
3M adhesive tape for fastening of both cameras and cables
USB adapter for memory cards
External GPS module, optional
Design, construction
Body is made in the form factor of the horizontal mono block.
Well executed body, in the form of a matte surface with intersecting at an angle of straight lines.
Matte black finish makes it less noticeable.
Its 4-inch screen, built into the body, became a tribute to fashion at large.
This adds convenience and makes it more visible inside the car.
Dimensions front camera 107,2 x 67,5 x 20.5 mm. Weight front camera - 145 gr.
The size of the rear camera 67,4 x 27,6 mm. Weight rear camera - 30 gr.
On the left side of the DVR located:
slot for cards microSDHC memory with rotating cover
indicators of Wi-Fi, GPS, recording indicator
silver button on and off DVR
On the right side located:
connector to connect the coaxial cable from the back of the camera
connector for connecting the power cable
On the top side located mounting and the entrance to the GPS module.
On the upperand lowersides of the housingare locatedin-lineholesto dissipate heat.
Build quality to par. Body does not creak when pressed.
Design and performance is good.
Mounting with screw clamps has a minimum size, so that the DVR is located as close as possible to mount on the windshield with tape 3M.
DVR easily attached subtle latch that is the advantage of this attachment.
The power of DVR.
It is completed with a cable with fuse and three inputs to power from a battery, to connect to the ignition switch, and grounding.
Now there is no need to purchase additional controller power type Power of Magic.
In the DVR provides the function of protection against discharge the battery in parking mode, when the minimum voltage 11,8/12/22,8/23,2B, which is selected in the menu.
Management
When the ignition is on, the DVR turns on and begins recording.
The time from up to start recording is approximately 10 to 17 seconds.
The power button briefly pressing, you can enable and disable the voice recording.
When pressed and held for a few seconds to turn on / off the power.
Screen.
Almost all of the back surface of the DVR is a 4-inch touchscreen LCD display.
The screen resolution WVGA 800 x 480 pixels.
The physical size of the visible part of the screen is 87 x 53 mm.
On the screen there is no visible "pixelation", thanks to high resolution ppi screen.
DVR perfectly responds to touching the screen. It is almost instantaneous.
Any pressing accompanied by a sound signal.
The screen without jerks transmits video and natural colours.
A well-implemented features picture-in-picture to view video images from both cameras.
Menu
The screen is executed in the form of a square icon in the style of Windows 8.
A simple graphical interface allows any user to easily manage the entire system.
From all over the screen height of 5 mm is the top information line.
It displays the recording mode, working WiFi, microphone, the work of the speaker, the date and time.
On the main page of the screen, in the bottom row is a row with icons for quick control the DVR.
To change the settings, you can also use the program on the phone via WiFi.
WiFi
It is made on the basis of standards IEEE 802.11b/g/n with a maximum data transfer rate up to 150 Mbps in the range of 2.4 GHz.
With this feature, you can watch the video online, view and download a previously captured video on a smartphoneor tablet.
The range of links when you view real-time video I was in the range of 10-15m.
If not using WIFi function it automatically turns off after 10 minutes.
In real-time (Live View), you can play the video from the front and rear cameras, frame rate 20fps.
Copy video files via WiFi from the front camera to the smartphone is about 12-20 seconds.
The manufacturer has added a new feature to update the firmware via WiFi. It's called - FOTA.
Users can update the firmware without wires using the built-in Wi-Fi and applications at any time, without the hassle of downloading and installing from the PC.
Recording DVR
I have installed the latest firmware for more accurate results.
Firmware v1.006K (2014.07.25).
I installed the maximum quality settings video recording.
The DVR can record video with a resolution of Full HD (1920 x 1080) @ 30fps on both cameras.
Front camera.
In the anterior chamber applied CMOS Sony Exmor 2.4 Mpix.
The angle of the anterior chamber is 146 gr. diagonally, 115 gr. horizontally, 85 gr. vertically.
Rear camera.
The back camera applied Omnivision CMOS 2 Mpix.
The angle of the anterior chamber is 129 gr. diagonally, 108 gr. horizontally, 57 gr. vertically.
Example day video the front camera with firmware v1.006K (2014.07.25):
original -
https://yadi.sk/i/Z-3uu0kzYWpcN
Example day video rear camera with firmware v1.006K (2014.07.25):
original -
https://yadi.sk/i/8yJuP9NlYWpxA
An example of the night video front camera with firmware v1.006K (2014.07.25):
original -
https://yadi.sk/i/bixR2rIwYWsKx
An example of the night video rear camera with firmware v1.006K (2014.07.25):
original -
https://yadi.sk/i/1E8mCCh_YWsX7
The properties of the video files recorded on the front and back camera:
MediaInfo front camera
Video #1
Format profile : High@L4.0
Format settings, CABAC : Yes
Bit rate : 6 000 Kbps
Width : 1 920 pixels
Height : 1 080 pixels
Frame rate : 30.000 fps
Stream size : 42.9 MiB
MediaInforear camera
Video #2
Format profile : High@L4.0
Format settings, CABAC : Yes
Bit rate : 4 000 Kbps
Width : 1 920 pixels
Height : 1 080 pixels
Frame rate : 29.315 fps
Stream size : 27.8 MiB
Conclusions:
To control the DVR is convenient thanks to the intuitive icons on the screen, even in the presence of the Korean language. The screen works fast and responsive. Brightness you can adjust the screen by itself. Optimal angles and matrix Sony Exmor 2.4 Mpix make good videos, and cope with the difficult traffic conditions. Non machine readable well on both sides. The firmware you want to adjust and work with the white balance. Pixelization video is practically absent. Good speed of copying files over WiFi on the phone allows you to transfer video from the front camera for about 15 seconds. The manufacturer has added a new feature FOTA intended to update the firmware via WiFi. Convenient fastening allows in a matter of seconds to shoot video with the windshield.
The device is completely balanced and deserves attention.
