JT/T 1076-2016GNSS System for Operating Vehicles - Technical Specifications for Vehicle Video Terminal (English PDF)

3.1 Terms and Definitions

The following terms and definitions are applicable to this document.

3.1.1 Vehicle video terminal

Vehicle video terminal refers to a vehicle-mounted terminal, which is installed on a

vehicle to be in charge of the collection of audio and video information of vehicle

environment; it is also equipped with the function of satellite positioning.

3.1.4 Particular alarm

Particular alarm refers to specific alarm that would affect vehicle safety, such as

emergency alarm and collision rollover alarm, etc.

3.2 Abbreviations

The following abbreviations are applicable to this document.

4.1 Basic Requirements

The appearance, nameplate, characters, graphs, symbols, texture and case protection

of the terminal shall comply with the stipulation in 4.2 ~ 4.6 in JT/T 794-2011.

4.2 Terminal Composition

4.2.1 Main engine

Main engine shall comply with the stipulation in 4.1.1 in JT/T 794-2011; it shall also

include the following modules or interfaces.

4.2.2 External equipment

External equipment shall comply with the stipulation in 4.1.2 in JT/T 794-2011; it shall

also include the following devices.

5.1 Basic Requirements

5.1.1 The functions of the terminal shall satisfy stipulations in Chapter 5, other than

5.4.8 and 5.4.9 in JT/T 794-2011; specifically speaking, the mode of communication

should also support TD-LTE or FDD-LTE, etc.

5.2 Requirements of Audio and Video Recording

5.2.1 Audio and video signal compression mode

The adopted audio and video signal compression mode shall be clearly indicated in

product's technical documents. The mode of audio and video digital signal

compression shall satisfy the following requirements.

5.2.3 Requirements of recorded image quality

Image resolution (pixel) shall at least be 704 x 576 (D1). One route shall adopt 1,280

x 720 (720P) or above; horizontal resolution shall be more than or equals to 400 TVL.

5.2.4 Requirements of playback image quality

5.2.5 Requirements of total resources of video recording

Under the circumstance when all cameras and one route pickup that the equipment

practically supports are initiated for recording, the vehicle-mounted terminal shall have

the capability of at least 150 h of video recording. In addition, the image playback shall

comply with the stipulation in 5.2.4.1 and 5.2.4.2.

5.2.7 Requirements of video-recording mode

The terminal shall adopt the boot video-recording mode; after the vehicle stops and

reaches the delay time, the video-recording shall automatically stop. The delay time

shall be settable. When the terminal is in the state of dormancy, it shall be able to report

the position merely in accordance with the set parameters and without initiating the

video-recording function. However, it shall support three video-recording triggering

modes, namely, particular alarm trigger, timing trigger and manual trigger.

5.3 Requirements of Local Search, Playback and Data Backup

5.3.1 Search

The terminal shall have the function of searching audio and video information in

accordance with date, channel number and alarm type, etc.

5.5 Requirements of data security

5.5.1 Data coverage

It shall support the function of automatic video coverage. When the storage device

reaches its maximum capacity, the oldest video data shall be automatically covered.

When users are reminded to deal with video data with the marking of particular alarm,

and such data is not deleted, the data shall be covered if necessary.

5.6 Requirements of network function

5.6.1 Basic requirements

The system shall satisfy all the functional requirements regarding surveillance center

in JT/T 794-2011.

5.6.2 Video surveillance

The system shall support at least the simultaneous uploading of real-time video images

of any two channels. Under the condition of 200 kbps of bandwidth, when the

transmission resolution of an individual channel's video images is CIF images, frame

rate shall be more than or equals to 8 frame/second; average delay shall be less than

or equals to 3 s.

5.6.3 Search, preview and retrieval of historical video

5.6.3.1 Search

The system shall support the surveillance center to search video data in the main

storage device and the disaster backup storage device in accordance with certain

conditions, such as date, channel number and alarm type, etc.

5.7 Requirements of image analysis

5.7.1 Passenger counting function

Passenger counting device shall implement the following functions.

5.7.2 Driving behavioral analysis function

Driver's driving behavioral analysis device shall implement the following functions.

5.8 Functional Requirement of Reading SIM Card Number

The terminal shall support the functions of reading, recording and reporting ICCID of

SIM card that the equipment uses.

5.9 Functional Requirement of TCP Link Timeout Value Setting

The terminal shall support the function of time setting for automatic cut-off of the link

when there is no data transmission through the TCP link.

5.10 Technical Requirements of Camera

5.10.1 Electrical performance

Analog camera video output signal (CVBS output) shall satisfy the following

requirements.

6.1 Requirements of Electrical Performance

The terminal system's electrical performance shall satisfy the stipulation in 6.4 in JT/T

794-2011.

6.2 Requirements of Environmental Adaptability

The terminal system's environmental adaptability shall comply with the stipulation in

6.5 in JT/T 794-2011.

8.1 Test Conditions

8.1.1 Environmental conditions have the following requirements.

8.1.2 Requirement of working condition. under full-load status.

8.1.3 Inspect the interface of the terminal's main engine and the composition of the

terminal; disassemble the outer shell of the main engine for inspection; it shall comply

with the stipulation in 4.2.

8.2 Functional Test

8.2.1 Video and sound recording test

8.2.1.4 Information recording mode

The test method for audio and video information recording mode is as follows.

8.2.1.5 Video recording mode

The test method for video recording mode is as follows.

8.2.2 Local search, playback and data backup test

8.2.2.1 Local search and playback

In accordance with date, channel number and video type, search video data; when a

video is played back, conduct the following operations. play, pause, stop, fast forward,

key frame fast rewind, slow forward and frame forward, etc. The test result shall comply

with the stipulation in 5.3.2.

8.2.3 Alarm test

8.2.3.1 Video alarm

When the equipment is normally functioning, conduct the test in accordance with the

following steps.

8.2.3.2 Alarm linkage

When the equipment is normally functioning, conduct the test in accordance with the

following steps.

8.2.4 Data security test

Conduct the following test when the equipment is normally functioning.

a) Simulate "main power's severe transient low-voltage interference", namely,

when the equipment is normally functioning, adjust the voltage of the main

power to a value lower than the rated minimum operating voltage, duration. 500

ms; then, restore to the normal operating voltage; cycle for 3 times. During this

test, the equipment shall normally record;

b) Simulate "main power's abnormal blackout", namely, when the equipment is

normally functioning, cut off the main power; after 10 min, restore power supply

and initiate the equipment; inspect 100 ms of data right before the blackout, all

data shall not be lost.

8.2.5 Network function test

8.2.5.1 Requirement of network bandwidth for the test

Under the test environment, wireless communication network bandwidth shall be at

least 200 kbps.

8.2.5.2 Real-time video surveillance

8.5 Electromagnetic Compatibility Test

In accordance with the requirement in 6.6 and 6.7 in JT/T 794-2011, conduct

electrostatic discharge immunity test, transient immunity test and anti-electrical ignition

interference test. During the tests and after the tests, the various functions of the

terminal system shall be normal.

JT/T 1076-2016

JT

TRANSPORTATION INDUSTRY STANDARD

ICS 03.220.20; 33.160.99

M 32

Registration No..

GNSS System for Operating Vehicles -

Technical Specifications for Vehicle Video Terminal

Issued on. OCTOBER 21, 2016

Implemented on. JANUARY 1, 2017

Issued by. Ministry of Transport of the People's Republic of China

Table of Contents

Foreword... 4

3.1 Terms and Definitions

The following terms and definitions are applicable to this document.

3.1.1 Vehicle video terminal

Vehicle video terminal refers to a vehicle-mounted terminal, which is installed on a

vehicle to be in charge of the collection of audio and video information of vehicle

environment; it is also equipped with the function of satellite positioning.

3.1.4 Particular alarm

Particular alarm refers to specific alarm that would affect vehicle safety, such as

emergency alarm and collision rollover alarm, etc.

3.2 Abbreviations

The following abbreviations are applicable to this document.

4.1 Basic Requirements

The appearance, nameplate, characters, graphs, symbols, texture and case protection

of the terminal shall comply with the stipulation in 4.2 ~ 4.6 in JT/T 794-2011.

4.2 Terminal Composition

4.2.1 Main engine

Main engine shall comply with the stipulation in 4.1.1 in JT/T 794-2011; it shall also

include the following modules or interfaces.

4.2.2 External equipment

External equipment shall comply with the stipulation in 4.1.2 in JT/T 794-2011; it shall

also include the following devices.

5.1 Basic Requirements

5.1.1 The functions of the terminal shall satisfy stipulations in Chapter 5, other than

5.4.8 and 5.4.9 in JT/T 794-2011; specifically speaking, the mode of communication

should also support TD-LTE or FDD-LTE, etc.

5.2 Requirements of Audio and Video Recording

5.2.1 Audio and video signal compression mode

The adopted audio and video signal compression mode shall be clearly indicated in

product's technical documents. The mode of audio and video digital signal

compression shall satisfy the following requirements.

5.2.3 Requirements of recorded image quality

Image resolution (pixel) shall at least be 704 x 576 (D1). One route shall adopt 1,280

x 720 (720P) or above; horizontal resolution shall be more than or equals to 400 TVL.

5.2.4 Requirements of playback image quality

5.2.5 Requirements of total resources of video recording

Under the circumstance when all cameras and one route pickup that the equipment

practically supports are initiated for recording, the vehicle-mounted terminal shall have

the capability of at least 150 h of video recording. In addition, the image playback shall

comply with the stipulation in 5.2.4.1 and 5.2.4.2.

5.2.7 Requirements of video-recording mode

The terminal shall adopt the boot video-recording mode; after the vehicle stops and

reaches the delay time, the video-recording shall automatically stop. The delay time

shall be settable. When the terminal is in the state of dormancy, it shall be able to report

the position merely in accordance with the set parameters and without initiating the

video-recording function. However, it shall support three video-recording triggering

modes, namely, particular alarm trigger, timing trigger and manual trigger.

5.3 Requirements of Local Search, Playback and Data Backup

5.3.1 Search

The terminal shall have the function of searching audio and video information in

accordance with date, channel number and alarm type, etc.

5.5 Requirements of data security

5.5.1 Data coverage

It shall support the function of automatic video coverage. When the storage device

reaches its maximum capacity, the oldest video data shall be automatically covered.

When users are reminded to deal with video data with the marking of particular alarm,

and such data is not deleted, the data shall be covered if necessary.

5.6 Requirements of network function

5.6.1 Basic requirements

The system shall satisfy all the functional requirements regarding surveillance center

in JT/T 794-2011.

5.6.2 Video surveillance

The system shall support at least the simultaneous uploading of real-time video images

of any two channels. Under the condition of 200 kbps of bandwidth, when the

transmission resolution of an individual channel's video images is CIF images, frame

rate shall be more than or equals to 8 frame/second; average delay shall be less than

or equals to 3 s.

5.6.3 Search, preview and retrieval of historical video

5.6.3.1 Search

The system shall support the surveillance center to search video data in the main

storage device and the disaster backup storage device in accordance with certain

conditions, such as date, channel number and alarm type, etc.

5.7 Requirements of image analysis

5.7.1 Passenger counting function

Passenger counting device shall implement the following functions.

5.7.2 Driving behavioral analysis function

Driver's driving behavioral analysis device shall implement the following functions.

5.8 Functional Requirement of Reading SIM Card Number

The terminal shall support the functions of reading, recording and reporting ICCID of

SIM card that the equipment uses.

5.9 Functional Requirement of TCP Link Timeout Value Setting

The terminal shall support the function of time setting for automatic cut-off of the link

when there is no data transmission through the TCP link.

5.10 Technical Requirements of Camera

5.10.1 Electrical performance

Analog camera video output signal (CVBS output) shall satisfy the following

requirements.

6.1 Requirements of Electrical Performance

The terminal system's electrical performance shall satisfy the stipulation in 6.4 in JT/T

794-2011.

6.2 Requirements of Environmental Adaptability

The terminal system's environmental adaptability shall comply with the stipulation in

6.5 in JT/T 794-2011.

8.1 Test Conditions

8.1.1 Environmental conditions have the following requirements.

8.1.2 Requirement of working condition. under full-load status.

8.1.3 Inspect the interface of the terminal's main engine and the composition of the

terminal; disassemble the outer shell of the main engine for inspection; it shall comply

with the stipulation in 4.2.

8.2 Functional Test

8.2.1 Video and sound recording test

8.2.1.4 Information recording mode

The test method for audio and video information recording mode is as follows.

8.2.1.5 Video recording mode

The test method for video recording mode is as follows.

8.2.2 Local search, playback and data backup test

8.2.2.1 Local search and playback

In accordance with date, channel number and video type, search video data; when a

video is played back, conduct the following operations. play, pause, stop, fast forward,

key frame fast rewind, slow forward and frame forward, etc. The test result shall comply

with the stipulation in 5.3.2.

8.2.3 Alarm test

8.2.3.1 Video alarm

When the equipment is normally functioning, conduct the test in accordance with the

following steps.

8.2.3.2 Alarm linkage

When the equipment is normally functioning, conduct the test in accordance with the

following steps.

8.2.4 Data security test

Conduct the following test when the equipment is normally functioning.

a) Simulate "main power's severe transient low-voltage interference", namely,

when the equipment is normally functioning, adjust the voltage of the main

power to a value lower than the rated minimum operating voltage, duration. 500

ms; then, restore to the normal operating voltage; cycle for 3 times. During this

test, the equipment shall normally record;

b) Simulate "main power's abnormal blackout", namely, when the equipment is

normally functioning, cut off the main power; after 10 min, restore power supply

and initiate the equipment; inspect 100 ms of data right before the blackout, all

data shall not be lost.

8.2.5 Network function test

8.2.5.1 Requirement of network bandwidth for the test

Under the test environment, wireless communication network bandwidth shall be at

least 200 kbps.

8.2.5.2 Real-time video surveillance

8.5 Electromagnetic Compatibility Test

In accordance with the requirement in 6.6 and 6.7 in JT/T 794-2011, conduct

electrostatic discharge immunity test, transient immunity test and anti-electrical ignition

interference test. During the tests and after the tests, the various functions of the

terminal system shall be normal.

......