WHST STA79-6-A Door Opening Obstacle Avoidance Radar User Manual
- June 11, 2024
- WHST
Table of Contents
WHST STA79-6-A Door Opening Obstacle Avoidance Radar
WHST CO., LTD.
Factory 1, Wanchun High-tech Innovation Park, East Dist of Economic &
Technological Development Zone, 241000 Wuhu, Anhui, China
2023.04
Revision record
| Date | Version | Description | Author |
|---|---|---|---|
| 2023-4-26 | V1.0 | Initial version | Yu Xuze |
Product Introduction
STA79-6 Door Open Obstacle Avoidance Radar is an automotive radar product with
ultra-high precision based on 79GHz millimeter wave technology independently
developed by WHST Co., Ltd. The operating frequency of the radar is 77GHz-
81GHz, and the frequency sweep bandwidth is as high as 4GHz. In addition to
accurately detecting the horizontal distance and vertical distance and speed
information of the target, it can also detect the height of the target to
realize the real four-dimensional information detection of the target.
The STA79-6 door-opening obstacle avoidance radar is installed on the lower
edge of the door to achieve high-precision detection of obstacles in the range
of 150° in the horizontal and 150° in the pitch. The detection accuracy is as
high as 5cm, which is suitable for vehicle door opening and obstacle avoidance
and automatic door control. It can also cooperate with the automatic parking
system to accurately perceive the surrounding environment.
Product description
Technical index
See Table 1 for the technical indicators of STA79-6-A type vehicle radar products.
Table 1. STA79-6-A radar product technical indicators
| Product Features | Door opening obstacle avoidance radar |
|---|---|
| Frequency Range | 77GHz~81GHz |
| Modulation waveform | FMCW |
| Effective bandwidth | 4GHz |
| Data rate | 20Hz |
| Detection Range | 0.15m～4m |
| Velocity Range | -13.7m/s～+13.7m/s |
| Dimensions | 107.5mm32mm13.6mm |
| Weight | ≤80g |
| Operating Voltage | 9~16V DC |
| Working Temperature | -40℃~+85℃ |
| Azimuth Angle Range | -75°～+75° |
| Elevation Angle Range | -75°～+75° |
| Ranging accuracy | ±0.05m |
| Speed accuracy | ±0.235m/s |
| Angle accuracy | ±0.5°@0° |
| Working current(typical value) | ≤200mA@12V |
| Power consumption | ≤2.5W |
| Protection level | IP6K7 |
| Communication port | CAN |
| Installation height | 0.2m~0.5m |
| RF output power | 33.67 dBm |
| Antenna gain | 6 dBi |
Interface description
Radar equipment terminal connector and wiring harness terminal connector are
shown in Figure 2, and the wiring definition is shown in Table 2
Table 2 Definition of external plug-in pins
| NO | Pin definition | Signal function | Note |
|---|---|---|---|
| 1 | VPOWER | Power input | |
| 2 | GND | Ground | |
| 3 | DCANH | Public CANH | |
| 4 | DCANH | Public CANL |
Radar installation method and size
As shown in the radar size diagram in Figure 7, the product size is 106×97.8×27.3mm, and it is directly installed on the car body using reserved three-leg holes to ensure the installation strength. It is recommended to use 3 M5*16 combination screws to fix the radar to the car body mounting hole.
FCC Warning
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions:
(1)This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause
undesired operation. Any changes or modifications not expressly approved by
the party responsible for compliance could void the user’s authority to
operate the equipment.
This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate
radio frequency energy and, if not installedand used in accordance with the
instructions, may cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or more
of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
FCC Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment.
This transmitter must not be co‐located or operating in conjunction with any
other antenna or transmitter.
This equipment should be installed and operated with minimum distance 20cm
between the radiator& your body.
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