9
Detection performance is not influenced by vehicles of adjacent lanes, or vehicles from the
front or back side.
All-weather and all-time.
Detection performance is not influenced by environmental factors such as sunlight, dust,
adverse weather, and temperature.
High capture rate.
99% (smooth traffic), 96% (saturated traffic), 92% (congestion).
Precise positioning.
Positioning accuracy of vehicle capture trigger signal: ±0.5m.
Table 3-2 DHI-ITARD-024MA-H radar parameters
Parameter
Description
Detection distance
15
–45 m
Positioning distance
18
–35 m
Positioning precision
±0.5 m
Speed detection range
5
–350 km/h
Speed detection error
-1.0km/h to 0
Lane width
2
–4 m
MU-1 beamwidth coverage
3 m
Microwave frequency
24.15 GHz
Transmission frequency error
< 1 MHz
Frequency modulation bandwidth
250 MHz
Effective isotropic radiated power
(EIRP)
< 20 dBm
Refresh time
50 ms
Communication interface
RS-485/RS-232/Wifi
Baud rate
9600 bps
– 256000 bps
Radar system
FMCW + Mon Doppler, 3-antenna
Temperature range
-40°C to +85°C
Mounting height
5
–10 m
Power supply
12 V DC
Real power consumption
< 3.5 W
Mechanical property
LEXAN housing material, complies with NEMA6 and
IP67
Dimensions
168 × 140 × 50 mm (L × W × H)
3.1.4 Edge Storage Device
This Guide uses DH-ITSE0400-GN5A-B edge storage device. This edge storage device can
encode and decode JPEG and H.264 streams. It has 1T capacity by default, and it is designed
with one built-in SATA interface (supports 2.5-inch HDD) for expanding capacity. The device also
supports ANR (automatic network replenishment), query of pictures and video records, snapshot
and video recording of violations, and more. See Figure 3-2 and Table 3-3.
