tuya ST-VDA1W Human Presence Detection Radar Instruction Manual

tuya ST-VDA1W Human Presence Detection Radar Instruction Manual

Overview

Bio-perception radar sensor is based on millimeter wave Doppler frequency modulated continuous wave radar system to realize the static perception of human biological movement and human biological perception, realize the wireless perception of personnel status in specific places through the synchronous perception technology of Doppler parameters of personnel movement and personnel physiological parameters, and realize the scene linkage through the wireless signal notification gateway; Suitable for home, hotel, office and other places. (not affected by temperature, humidity, noise, airflow, dust, light and other factors)

Radar Performance Parameters

Instruction of Radar

External Appearance

Network Distribution

APP Downloading and Registration

 Search “TuyaSmart”in APP store，install, register with phone number and log in.

Distribution Steps

1. Make sure your mobile connect to 2.4GWiFi（Currently does not support 5GWiFi ）and turn on the Blue Tooth.
2. If the red spot keeps flashing, then the device is distributing network; if not, please long-press 5s of the reset button until the indicator is off and then flashes, entering distribution mode.

APP distribution option 1 （Blue Tooth）

1. Click “to add” of the Blue Tooth device scanned;
2. Select WiFi（2.4G）for connection and enter password. Click connect and wait for completion;
3. WiFi connection done，page turned to device name. Please enter the device name and click “start to use” to finish adding new device.

Option 2：

1. Click “+” on the right top ，add new device and choose to automatically；
2. Click “next” after a new device is found；
3. Choose WiFi（2.4G）for connection and enter password. Click connect and wait for completion;
4. Wait until APP finishes network distribution to connect Tuya Wifi Radar device

Installation

Instruction

1. Radar scanning will penetrate objects with low density such as glass, veneer and gypsum board partition wall, but cannot penetrate conductive media such as human body, liquid and metal objects. Please confirm the installation position according to the room layout before installation；
2. The installation method is top mounted. It is recommended that the installation height be within 3 M. The installation scene is recommended to be in slippery areas such as kitchen and toilet；
3. Power supply via USB interface
4. Use the upper wall mounting bracket to drill the wall and push in the capsule；
5. Push in the expansion screw to secure the mounting bracket；
6. Align the radar base with the snap of the mounting bracket and fix the radar in the direction of rotation；
7. Power-on the device

Precautions

1. Live operation is prohibited during product installation. Please install it by rofessional personnel；
2. Power supply via USB interface；
3.  Do not use beyond the load；
4. When the radar is powered on, it needs to be preheated for 60s before it starts to work；
5. This product is only suitable for installation in indoor environment. It is prohibited to install in areas that can be covered by rain or wet；
6. Objects shall not be blocked on the radar detection surface, and there shall be no moving metal objects and large potted plants within the radar detection range；
7. During installation, ensure that the radar installation position is stable without shaking；
8. The installation position shall be at least 1m away from the air conditioning port and fresh air outlet；
9. The installation interval between radars shall be at least 1m to avoid cofrequency interference.

Radar Function Distribution

Sensing Range

Millimeter wave radar can sense the existence of human body through large action or micro action during human sitting. When the radar detects the existence of human body, it will trigger somebody command to report, and the indicator light is always on; When the human body is not sensed, the nobody command will be triggered and the indicator light will go out.

Diagram of Human Presence Detection Range：

The detecting range of human activity for top-mounted is about 6m 8m, the detecting range of stationary human body is 3m 4m, and the scanning range of human body in sleep is about 3.6m * 2.2m. The radar needs to be installed according to the room layout

Scenario Setting（Sensing Range Setting）

| Trigger Range（Diagram）| Stationary Trigger Range (Diagram)
---|---|---
Default| Wide-angle 13m/Narrow- angle 9m/Oblique angle 10m| Wide-angle 6m/Narrow- angle 3m/Oblique angle 4m
Office| Wide-angle 12m/Narrow- angle 7m/Oblique angle 8m| Wide-angle 6m/Narrow- angle 3m/Oblique angle 4m
Hotel| Wide-angle 12m/Narrow- angle 6m/Oblique angle 7m| Wide-angle 6m/Narrow- angle 3m/Oblique angle 4m
Living Room| Wide-angle 10m/Narrow- angle 3.5m/Oblique angle 4.5m| Wide-angle 6m/Narrow- angle 3m/Oblique angle 4m
Bedroom| Wide-angle 7.5m/Narrow- angle 2m/Oblique angle 3.| Wide-angle 6m/Narrow- angle 3m/Oblique angle 4m
Regional| 5mWide-angle 5m/Narrow- angle| Wide-angle 6m/Narrow- angle 3m/Oblique angle 4m
Bathroom| 1m/Oblique angle 2m Wide-angle 2.5m/Narrow- angle 1m/Oblique angle 2m| Wide-angle 6m/Narrow- angle 3m/Oblique angle 4m

Perceptual Judgment

Sensing States： Somebody/Nobody state Judgment；

If personnel enters radar detecting coverage, radar will output Somebody state in real time. If no personnel is in radar detecting coverage, radar will detect for a period of time if there is really no human movement or respiration, etc and outputs Nobody state when confirms.

Human Body Act Judgment： Active/Stationary/Nobody Judgment：
Active：Radar will output Active state if there is personnel within the detecting coverage with acts like walking and etc.
Stationary：Radar will output Stationary state if the personnel remains stationary or just left the coverage when the radar still in Stationary mode.
Nobody： Radar will output Nobody state if within the coverage there is no personnel for a certain time.

Human Body Moving State： Approaching/Leaving/None State Judgment：
Approaching：Radar will output Approaching state if the personnel becomes close to radar sensor.
Leaving： Radar will output Leaving state if the personnel becomes away from radar sensor.
None State：Radar will output None state if within the coverage, the personnel is stationary or makes disordered-movements

Body Motion Amplitude：
To define the extent of human body acts or the distance away from radar sensor, ranging from（0~ 100）

Indicators
The radar contains an RGB light for radar distribution network and working status indication.

Press Button
The radar contains a physical key, which is used to reset the distribution network of the equipment. The specific operations are as follows: Press and hold the key for 5S, release the key when the equipment indicator is off, and the indicator flashes quickly, indicating that the radar enters the distribution  network mode

Sensitivity Gear Setting
Millimeter wave radar uses electromagnetic wave to transmit and receive and detect targets, which will be interfered by moving objects in the surrounding environment. The radar sensitivity can be adjusted according to the actual application scene toadapt to the corresponding environment. The sensitivity gear ranges 1 – 10； High （7-10）：It is suitable for scenes with few environmental interference and high detection sensitivity, and can detect subtle action changes, such as confined space, warehouse, insurance bank, etc; (note that the sensitivity of this mode is too high, which is easy to be disturbed by the environment and misjudge someone) Medium（4-6）：Suitable for ordinary indoor scenes, such as family, office, hotel, etc; (default) Low（1-3）：It can only be triggered by a large range of movement, and is not easy to be disturbed by the shaking of curtains and plants. This scene is suitable for corridors, parking lots and other scenes. Default Gear to be 7 ；

Delay of Report When Nobody
Set the time period for reporting nobody when the radar detects that there is no one in the range, for example, if it is set to 1min, it means that when the radar detects that no one exists, and this state exceeds 1min, it will confirm that no one exists and give the corresponding state change. Setting Options： None（90s）,10s , 30s ,1min ,2min ,5min ,10min ,30min ,1H；

History Record

Device Linkage
Create smart scenario via Tuya Smart APP “Intelligent” Method： Click “Intelligent”- “to add”- “trigger” to realize it(can also realize linkage between Tuya Eco-system Hardware products )

FAQs

False Report of Somebody In Nobody Circumstance
Note： In view of the complexity of electromagnetic wave propagation and processing, there will be false alarm in the actual use of our radar, and there will be some factors affecting the radar in the radar use environment, including: Physical disturbance: including the vibration of air conditioners, fans, motors and other facilities, and the passing of cats, dogs, mice, birds and other animals, which may cause radar misjudgment of the environment；
Space electromagnetic wave disturbance, including possible high-power electrical equipment around the radar, places with dense electromagnetic waves, the coexistence of multiple radars and other environmental factors, may also cause radar misjudgment. This interference item is rare in home and office scenes, but it will be more in industrial environments such as factories；
Power disturbance mainly refers to the power radar crosstalk caused by related facilities and equipment in the municipal power environment, resulting in unstable radar power supply and misjudgment of output

False Report of Nobody In Somebody Circumstance
The existing human body is beyond radar detecting range；
The human body is blocked by metal objects or too-thick desk/ chairs；
There may be cases in which radar reports nobody state because personnel opting for a lateral sleep position that cannot detect respiration

Instruction of Indicator &Device Failure Types

Device Failure Types

1. Surface crack caused by structural or material factors
2. Indicator failure
3. Reset button failure
4. WiFi connection failed
5. Human body sensing failure
   Note： We can exchange the like products if there comes the nonartificial faults or problems abo

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