Dahua DHI-ITARD-024SA-ST User manual

24 GHz Radar Detector
User’s Manual
V1.0.0
V1.0.0
ZHEJIANG DAHUA VISION TECHNOLOGY CO., LTD.
ZHEJIANG DAHUA VISION TECHNOLOGY CO., LTD.

User’s Manual
I
Foreword
General
This manual introduces the functions and operations of the 24 GHz radar detector (hereinafter
referred to as the "Radar").
Model
DHI-ITARD-024SA-ST
Safety Instructions
The following categorized signal words with defined meaning might appear in the manual.
Signal Words
Meaning
Indicates a high potential hazard which, if not avoided, will result
in death or serious injury.
Indicates a medium or low potential hazard which, if not
avoided, could result in slight or moderate injury.
Indicates a potential risk which, if not avoided, could result in
property damage, data loss, lower performance, or
unpredictable result.
Provides methods to help you solve a problem or save you time.
Provides additional information as the emphasis and
supplement to the text.
Revision History
Version
Revision Content
Release Time
V1.0.0
First release.
March 2020
About the Manual
The manual is for reference only. If there is inconsistency between the manual and the
actual product, the actual product shall prevail.
We are not liable for any loss caused by the operations that do not comply with the manual.
The manual would be updated according to the latest laws and regulations of related
regions. For detailed information, see the paper manual, CD-ROM, QR code or our official
website. If there is inconsistency between paper manual and the electronic version, the
electronic version shall prevail.
All the designs and software are subject to change without prior written notice. The product

User’s Manual
II
updates might cause some differences between the actual product and the manual. Please
contact the customer service for the latest program and supplementary documentation.
There still might be deviation in technical data, functions and operations description, or
errors in print. If there is any doubt or dispute, please refer to our final explanation.
Upgrade the reader software or try other mainstream reader software if the manual (in PDF
format) cannot be opened.
All trademarks, registered trademarks and the company names in the manual are the
properties of their respective owners.
Please visit our website, contact the supplier or customer service if there is any problem
occurred when using the device.
If there is any uncertainty or controversy, please refer to our final explanation.

User’s Manual
III
Important Safeguards and Warnings
This chapter introduces the contents covering proper handling of the Radar, hazard prevention,
and prevention of property damage. Read these contents carefully before using the Radar,
comply with them when using, and keep the manual well for future reference.
Pay attention to personnel safety when installing the Radar at intersections or certain road
sections.
Non-professionals are forbidden to disassemble and install the Radar.
Before powering on the Radar, check all the power connections to prevent short circuit.
Properly ground the Radar.
Securely install the Radar to reduce the impact of vibration on the Radar.
The cables must meet the requirements of shielding, insulation, and moisture resistance.
Power Source Requirements
Use high-quality DC power supply that meets the voltage requirements to avoid crosstalk
from other devices.
Strictly comply with the local electric safety standards.
Make sure that the power supply is correct before operating the Radar.
Use power supply that meets SELV (safety extra low voltage) requirements, and supply
power with rated voltage that conforms to Limited Power Source in IEC60950-1. For
specific power supply requirements, please refer to device labels.
Install easy-to-use device for power off before installing cables, which is for emergent
power off when necessary.
Prevent the line cord from being trampled or pressed, especially the plug, power socket
and the junction.
Application Environment Requirements
Make sure that there are no obstructions in the front of the Radar.
Do not hot swap the serial port.
Do not impact the Radar. Prevent the Radar from falling down.
Do not aim the Radar at strong light (such as lamplight, sunlight) for focusing.
Transport, use and store the Radar under the allowed humidity and temperature
conditions.
Prevent any liquid from flowing into the Radar.
Do not block the ventilation near the Radar.
Do not press, vibrate or soak the Radar during transportation, storage and installation.
Pack the Radar with packaging materials provided by its manufacturer or materials with the
same quality before transporting it.

User’s Manual
IV
Maintenance Requirements
WARNING
Use accessories suggested by the manufacturer, and install and maintain the Radar by
professionals.
Do not provide two or more power supply modes; otherwise, the Radar might be damaged.

User’s Manual
V
Table of Contents
Foreword.................................................................................................................................................... I
Important Safeguards and Warnings.................................................................................................... III
1 Product Introduction............................................................................................................................. 1
Overview ....................................................................................................................................... 11.1 Features........................................................................................................................................ 11.2
2 Device Structure.................................................................................................................................... 2
Dimensions ................................................................................................................................... 22.1 Structure........................................................................................................................................ 22.2 Cable............................................................................................................................................. 42.3
3 Installation.............................................................................................................................................. 5
Fixing the Radar to Brackets ........................................................................................................ 53.1 Installing the Radar above Lane................................................................................................... 63.2
4 Radar Configuration on Camera Web................................................................................................. 8
5 FAQ ....................................................................................................................................................... 10
Cybersecurity Recommendations................................................................................... 11Appendix 1

User’s Manual
1
1 Product Introduction
Overview1.1
The 24 GHz radar detector is a narrow beam radar with planar antenna system. It is specifically
designed to detect moving vehicles to meet modern traffic management challenges.
The product uses modern microwave radar technology and high-speed digital signal
processing technology for precise positioning and accurate speed measurement. The Radar
can be applied to a wide range of complex road environments such as tunnel entrance and
highway interchanges, providing real-time traffic information and forensic evidence for traffic
speed violations.
Features1.2
Adopts 24 GHz MMIC technology, light-weighted and efficient.
High-precision capture at fixed position. Position error within ±1 m (3.28 ft).
High-gain and low-sidelobe microstrip antenna design helps effectively avoid echo
interference of adjacent lanes.
Fast response ensures high capture rate and real-time signal processing.
Advanced radar signal processing and real-time data processing technologies.
Adopts new algorithm for enhanced location stability and prolonged work sustainability.
Ideal for flexible and extensive applications.
Low microwave radiation and power consumption, long service life, and high stability and
reliability.

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2 Device Structure
Dimensions2.1
Front view (mm (inch))Figure 2-1
Side view (mm (inch))Figure 2-2
Structure2.2
The device structure relates to the Radar and the bracket. See Figure 2-3 and Figure 2-4.

User’s Manual
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Radar structureFigure 2-3
Table 2-1 Radar structure
No.
Description
No.
Description
1
Antenna
4
Set screw
2
Sealing washer
5
PG connector
3
Front cover
6
Rear cover
Bracket structureFigure 2-4
Table 2-2 Bracket structure
No.
Description
No.
Description
1
Bracket 1
2
Bracket 2

User’s Manual
4
Cable2.3
CableFigure 2-5
Table 2-3 Description of 6-pin 2.5mm pitch connector
Pin
Name
Description
1
12V DC (black)
GND pin for radar power supply.
2
12V DC (red)
Pin for 12V radar power supply.
3
TXD (green)
TX pin for radar RS-232 communication, baud rate 9600, connects
to R1, R2 and R3 ports of camera.
4
RXD (yellow)
RX pin for radar RS-232 communication, connects to T1, T2 and
T3 ports of camera.
5
GND (brown)
GND pin for radar RS-232 communication, connects to GND port
of camera.
6
Reserved
Reserved.

User’s Manual
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3 Installation
Fixing the Radar to Brackets3.1
The brackets help fix the Radar and adjust the angle of the Radar.
Fix bracket 1 to the Radar with four M6 ×8 hex socket cap screws.Step 1 Fix bracket 1Figure 3-1
Fix bracket 2 to bracket 1 with four M6 ×20 flat spring screws.Step 2 Fix bracket 2Figure 3-2

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Installing the Radar over Lane3.2
You can use tools to improve your installation, such as digital protractor, portable inclinometer,
and more.
Install the Radar on traffic pole right above the lane.Step 1 Install the Radar on traffic poleFigure 3-3
Adjust the Radar position to make it aim at the middle position of the detected lane.Step 2 Adjust Radar positionFigure 3-4
Adjust the installation height, elevation angle (the angle between the normal line of theStep 3 radar front cover and the horizontal line), and capture distance of the Radar according
to your needs.
Recommended installation: Height: 6 m (19.7 ft), elevation angle: 13°, and capture
distance: 24 m (78.7 ft).
When adjusting the Radar elevation angle, keep the Radar as horizontal as possible.
You can use mobile app for measuring angle to help you adjust the elevation angle.

User’s Manual
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Radar installation exampleFigure 3-5

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8
4 Radar Configuration on Camera Web
Install the Radar (see "3 Installation"), connect the Radar to camera (see "2.3 Cable"), and
then set the radar parameters on the web interface of camera, so the Radar can work with the
camera to detect and capture vehicles.
Open the browser, enter the IP address of the camera in the address bar, and thenStep 1 press the Enter key.
Enter the username and password, and click Login to log in to the web interface ofStep 2 the camera.
Select Setup > ITC > Intelligent > Radar.Step 3 Radar
Figure 4-1
Select Enable Radar to enable radar detection, and then you can configure theStep 4 parameters.
This section takes ITARD-024SA-ST radar as an example.
The interface is for reference only, and the actual interface shall prevail.
Table 4-1 Radar description
Parameter
Description
COM SET
COM Port
Select the corresponding COM port. COM1/2/3 corresponds to Lane1/2/3
respectively. Select according to the actual lane that the Radar detects.
Radar Type
Select the radar type according to the actually-connected radar.
Parameters of the selected radar need to be configured at the right side of
the interface.
ITARD-024SA-ST

User’s Manual
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Parameter
Description
Work Mode
The way of sending information captured by the Radar. You can select
Single, Continuous or Manual.
Currently, camera supports only Single. Special program is required if you
want to send the information in continuous or manual way.
Interval
The interval that the Radar detects and recognizes an object.
Detect Mode
The detection direction of the Radar, which includes Approaching,
Departing, and Both. Select according to the actual installation status of
the Radar.
Angle
The elevation angle, means the the angle between the normal line of the
radar front cover and the horizontal line. Properly adjust the angle to get
best detection result.
Sensitivity
You can select the capture sensitivity of the Radar. The larger the value,
the more sensitive the Radar.
Trigger Speed
Capture will be triggered when the vehicle speed reaches the defined
trigger speed.
Radar No.
The No. that defines the Radar.
Trigger
Distance
The distance that triggers capture. Enter the value according to the actual
trigger distance of the Radar.
Height
Installation height of the Radar. Enter the height according to the actual
installation height of the Radar.
Pre Speed Wait
The two parameters help get the vehicle speed. By video detection or
radar, the camera can detect the vehicle speed. If vehicle speed is
detected within the range of Pre Speed Wait and Delay Speed Wait, then
such speed will be the vehicle speed recognized by the Camera; if out of
such range, then the speed will be a random value within speed limit.
Delay Speed
Wait
Click Confirm.Step 5

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5 FAQ
The Radar is a high-technology product that requires professional operations. Read the user's
manual carefully before using the Radar, or contact professionals or technical support if you
have any doubts. This section provides guidance on solving some typical problems related to
the Radar.
Table 5-1 FAQ
Problem
Solutions
The Radar does not
work after being
powered on
Check power connection and voltage

Check whether the positive and negative electrodes of power

module are correctly connected
Check communication cable connection

Check the data receive interface

Check the serial port settings of the program
Messy code
Check communication cable connection

Check electromagnetic compatibility (EMC) and electromagnetic

interference (EMI)
Check baud rate settings

The Radar does not
detect vehicle speed
Check the elevation angle of the Radar. Make sure that the area

to be detected is fully covered by the radar beam
Check whether the elevation angle of the Radar is reasonable

Check whether the sensitivity is set too low

The Radar detects
vehicle speed but
does not capture
vehicles
Check whether there is strong electromagnetic interference and

rotating object
Check the installation angle of the Radar, and check whether

there is interference from adjacent lane
Check whether the sensitivity is set too high
Missed capture
Check the elevation angle of the Radar. Make sure that the area

to be detected is fully covered by the radar beam
Check whether the capture distance is reasonable

Check whether the sensitivity is set too low

After I connect the
Radar to the
camera, the camera
does not capture
targets
Check communication cable connection

Check whether the radar protocol matches with the camera

protocol
Check serial port and baud rate settings of the camera

Check whether vehicle capture is enabled on the camera

Check whether radar settings on the camera web interface are

correct. These settings include radar work mode, detection
direction, angle, and sensitivity

User’s Manual
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Cybersecurity RecommendationsAppendix 1
Cybersecurity is more than just a buzzword: it’s something that pertains to every device that is
connected to the internet. IP video surveillance is not immune to cyber risks, but taking basic
steps toward protecting and strengthening networks and networked appliances will make them
less susceptible to attacks. Below are some tips and recommendations on how to create a
more secured security system.
Mandatory actions to be taken for basic equipment network security:
1. Use Strong Passwords
Please refer to the following suggestions to set passwords:
The length should not be less than 8 characters;
Include at least two types of characters; character types include upper and lower case
letters, numbers and symbols;
Do not contain the account name or the account name in reverse order;
Do not use continuous characters, such as 123, abc, etc.;
Do not use overlapped characters, such as 111, aaa, etc.;
2. Update Firmware and Client Software in Time
According to the standard procedure in Tech-industry, we recommend to keep your
equipment (such as NVR, DVR, IP camera, etc.) firmware up-to-date to ensure the
system is equipped with the latest security patches and fixes. When the equipment is
connected to the public network, it is recommended to enable the "auto-check for
updates" function to obtain timely information of firmware updates released by the
manufacturer.
We suggest that you download and use the latest version of client software.
"Nice to have" recommendations to improve your equipment network security:
1. Physical Protection
We suggest that you perform physical protection to equipment, especially storage devices.
For example, place the equipment in a special computer room and cabinet, and implement
well-done access control permission and key management to prevent unauthorized
personnel from carrying out physical contacts such as damaging hardware, unauthorized
connection of removable equipment (such as USB flash disk, serial port), etc.
2. Change Passwords Regularly
We suggest that you change passwords regularly to reduce the risk of being guessed or
cracked.
3. Set and Update Passwords Reset Information Timely
The equipment supports password reset function. Please set up related information for
password reset in time, including the end user’s mailbox and password protection
questions. If the information changes, please modify it in time. When setting password
protection questions, it is suggested not to use those that can be easily guessed.
4. Enable Account Lock
The account lock feature is enabled by default, and we recommend you to keep it on to
guarantee the account security. If an attacker attempts to log in with the wrong password
several times, the corresponding account and the source IP address will be locked.

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5. Change Default HTTP and Other Service Ports
We suggest you to change default HTTP and other service ports into any set of numbers
between 1024~65535, reducing the risk of outsiders being able to guess which ports you
are using.
6. Enable HTTPS
We suggest you to enable HTTPS, so that you visit Web service through a secure
communication channel.
7. Enable Whitelist
We suggest you to enable whitelist function to prevent everyone, except those with
specified IP addresses, from accessing the system. Therefore, please be sure to add your
computer’s IP address and the accompanying equipment’s IP address to the whitelist.
8. MAC Address Binding
We recommend you to bind the IP and MAC address of the gateway to the equipment,
thus reducing the risk ofARP spoofing.
9. Assign Accounts and Privileges Reasonably
According to business and management requirements, reasonably add users and assign a
minimum set of permissions to them.
10. Disable Unnecessary Services and Choose Secure Modes
If not needed, it is recommended to turn off some services such as SNMP, SMTP, UPnP,
etc., to reduce risks.
If necessary, it is highly recommended that you use safe modes, including but not limited to
the following services:
SNMP: Choose SNMP v3, and set up strong encryption passwords and authentication
passwords.
SMTP: Choose TLS to access mailbox server.
FTP: Choose SFTP, and set up strong passwords.
AP hotspot: Choose WPA2-PSK encryption mode, and set up strong passwords.
11. Audio and Video Encrypted Transmission
If your audio and video data contents are very important or sensitive, we recommend that
you use encrypted transmission function, to reduce the risk of audio and video data being
stolen during transmission.
Reminder: encrypted transmission will cause some loss in transmission efficiency.
12. Secure Auditing
Check online users: we suggest that you check online users regularly to see if the
device is logged in without authorization.
Check equipment log: By viewing the logs, you can know the IP addresses that were
used to log in to your devices and their key operations.
13. Network Log
Due to the limited storage capacity of the equipment, the stored log is limited. If you need
to save the log for a long time, it is recommended that you enable the network log function
to ensure that the critical logs are synchronized to the network log server for tracing.
14. Construct a Safe Network Environment
In order to better ensure the safety of equipment and reduce potential cyber risks, we
recommend:
Disable the port mapping function of the router to avoid direct access to the intranet
devices from external network.

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The network should be partitioned and isolated according to the actual network needs.
If there are no communication requirements between two sub networks, it is
suggested to use VLAN, network GAP and other technologies to partition the network,
so as to achieve the network isolation effect.
Establish the 802.1x access authentication system to reduce the risk of unauthorized
access to private networks.
It is recommended that you enable your device's firewall or blacklist and whitelist
feature to reduce the risk that your device might be attacked.

User’s Manual