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所属分类:精品推荐 X4M300是挪威最新推出的测呼吸可以达到10米的产品,采样达到1536位,信号精度更高!
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1 List of Features
People detection up to 9.4 meter
Measures distance from sensor to person
Presence detection of people with no other movement than respiration
Obstacle detection up to 9.4 meter
Reports distance to first static target
Radar sensor
Baseband data output
Pulse-Doppler output
Novelda Ultra Wide Band (UWB) Impulse Radar X4 system on a chip (SoC)
Built-in TX and RX antennas
Multiple interface options
Serial interface, UART
On-board USB interface
Novelda AS
www.xethru.com
Copyright © 2017 Novelda AS A Preliminary Draft - X4M300 Datasheet
Page 4
On-board multi-color LED
FCC certified (pending)
CE/ETSI approved (pending)
KCC certified (pending)
MIC/ARIB certified (pending)
Sensor module
1.1 Order Information
Order Code Item Description MOQ MPQ
X4M300 X4M300 Presence Sensor
FCC and ETSI version
1 1
To be
determined
X4M300 Presence Sensor
FCC, KCC and MIC
version
1 1
MOQ: Minimum Order Quantity
MPQ: Minimum Package Quantity
2 XeThru X4M300 Presence Sensor
The X4M300 Presence Sensor contains a profile that can detect and monitor people's movement
and presence within the detection zone. The sensor module is ready for product integration.
Novelda AS
www.xethru.com
Copyright © 2017 Novelda AS A Preliminary Draft - X4M300 Datasheet
Page 5
1.
2.
3.
a.
b.
4.
X4M300 senses human presence by detecting all major and minor motions in a room such as a
person walking and hand movements. Its extreme sensitivity enables it to detect presence up to a
distance of 9.4 meters with great accuracy. It is also able to measure the distance between the
device and the user, and is not susceptible to “dead spots” within the detection zone.
The X4M300 has the ability to see presence of a person with no other movements than his
respiration motion. This unique ability enables implementation of products that does not lose
track of a person's presence if he/she sits still for a longer time period. With the XeThru
technology's ability to see through light materials it also enables products that detect a person's
presence while sleeping in a bed with a blanket, duvet or clothes covering the person's body.
2.1 Supported Profiles
The following Profiles are included in X4M300:
Presence Profile
Additional profiles may be added in future firmware upgrades.
3 Sensor Operation
3.1 Power-up
3.1.1 Configuration
Profiles and User Settings can be loaded as described in the Module Connector documentation
found on www.xethru.com.
User Settings vary between different profiles and each profile has its own default setting. See the
Profile description chapters for details. If a User Setting is not specified, the default values will be
used.
Settings can normally only be changed when the profile is not running. To change any setting,
follow these steps:
Stop running profile (if any profile running)
Load desired profile (if not already loaded)
Send settings commands
User Settings such as Detection Zone, Sensitivity etc.
Output Control settings that determines what messages will be sent over the serial
communication link on X4M300
Start running profile
Changing sensor settings while a profile is running will not work.
3.1.2 Running sensor directly from power-up or reset
At power-up or reset, the sensor will start with its stored settings. The last used settings are
always stored.
Novelda AS
www.xethru.com
Copyright © 2017 Novelda AS A Preliminary Draft - X4M300 Datasheet
Page 6
3.2 IO-pins
Various profiles may have different uses of IO-pins. Do not connect IO-pins that are not in use.
The sensor module will pull up these IO-pins internally. Future FW upgrades of the sensor and any
existing or future pin compatible products may use these unused IO-pins for other functionality.
3.3 Firmware Versions
The datasheet may describe features not yet implemented in the current firmware version of the
module. The datasheet chapter Firmware Versions explains what features are implemented in
which firmware versions.
3.4 Bootloader
The module has a bootloader to allow for firmware upgrades. The bootloader is locked and
cannot be reprogrammed, thus it can never be erased, altered or removed from the module over
the serial protocol. It is possible to force the module into bootloader mode using the pin header
interface. See datasheet chapter Interface Options for details.
Novelda AS
www.xethru.com
Copyright © 2017 Novelda AS A Preliminary Draft - X4M300 Datasheet
Page 7
Bootloader flowchart
If a firmware upgrade fails (eg power loss) the host providing the firmware upgrade must be able
to reinitiate the entire firmware upgrade process. The previous version of the firmware may be
lost. The bootloader will still operate as described above after a failed firmware upgrade attempt.
4 XeThru Presence Profile
4.1 Overview
The XeThru Presence Profile detects human presence in a defined detection zone. The X4M300
must be still during use and can be installed in the ceiling, on the wall, or in a product that stands
still on a table, bookshelf or similar.
Novelda AS
www.xethru.com
Copyright © 2017 Novelda AS A Preliminary Draft - X4M300 Datasheet
Page 8
4.2 User Settings
4.2.1 Set Detection Zone
The upper limit of the Detection Zone sets the maximum distance for presence detection, while
the lower limit sets the minimum distance.
Detection Zone parameter limits 
Minimum lower range 0.40m
Maximum upper range 9.40m
Minimum size of detection zone 0.20m
Maximum size of detection zone 9.00m
Step size between possible range settings is 5.14 cm. The desired detection zone can be set with 1
cm resolution. The actual detection zone will be set at the closest value before/after the input
lower/upper range. The actual lower and upper range used by the sensor can be read back after
setting the detection zone.
4.2.2 Sensitivity
Sensitivity settings 
Minimum sensitivity 0
Maximum sensitivity 9
Sensitivity step size 1
Higher sensitivty setting gives better sensing of small targets. Lower sensitivity makes the sensor
more robust against false detections.
4.2.3 LED
The module has 1 multi color RGB LED. The module LED can be configured between "Full" state
indication, a "Simple" indication or "Off".
Full
Initializing: Green (0.2 sec) -> Orange (0.2 sec) -> Red (0.3 sec) -> Orange (0.2 sec) -> Green (0.2
sec) -> Off (0.3 sec)
Presence: Orange (0.5 sec) -> Green (0.5 sec)
No Presence: Red (0.3 sec) -> Off (4.7 sec)
No profile running: Blue (0.2 sec) -> Off (4.7 sec)
Simple
Initializing: Green
Presence: Orange
No Presence: Red (0.3 sec) -> Off (4.7 sec)
No profile running: Blue (0.2 sec) -> Off (4.7 sec)
Novelda AS
www.xethru.com
Copyright © 2017 Novelda AS A Preliminary Draft - X4M300 Datasheet
Page 9
Off
Always: Off
4.2.4 Frequency Band
Low
In the low frequency band, X4M300 will operate in the 6.0 - 8.5 GHz band.
High
In the high frequency band, X4M300 will operate in the 7.2 - 10.2 GHz band.
4.2.5 IO-pin Control
On
When IO-pin control is On, IO-pins will operate as described in the IO-pin functionality table
below.
Off
When IO-pin control is Off, IO-pins will be inputs with internal pull-up and have no function.
4.2.6 Enable Noise Map
One
Enables noise map.
Off
Disables noise map. Detailed description of noise map in Firmware Algorithms section below.
4.2.7 Adaptive Noise Map
On
Enables Noise Map adaptation. Noise Map will still not adapt in certain conditions as described in
Firmware Algorithms section below.
Off
Disables Noise Map adaptation.
4.2.8 Initialize Noise Map at reset
On
A new Noise Map will always be created at reset. Sensor state will be Initializing during noise map
creation.
Off
If a Noise Map is stored in the sensor this will be used at reset. If no Noise Map is stored a new
Noise Map will be created at reset.
Novelda AS
www.xethru.com
Copyright © 2017 Novelda AS A Preliminary Draft - X4M300 Datasheet
Page 10
4.2.9 Default User Settings
Default User Settings are applicable when the Presence Profile is selected, but no User Settings
are specified.
User Setting Default
value
Detection zone 0.4 - 9.4 m
Sensitivity 5
LED Full
Frequency band Low
IO-pin control Off
Enable Noise Map On
Adaptive Noise Map On
Initialize Noise Map at reset On
4.3 Sensor Operation in Presence Profile
4.3.1 Detect Presence
There are four states in the Presence Profile:
No Presence: No presence detected
Presence: Presence detected
Initializing: The sensor initializes after the Presence Profile is executed
Error: The sensor is in an error state and requires a Profile and User Settings to be loaded
4.3.2 Measure Presence Data
When running, the following data is reported:
State
When in No Presence or Presence states, the following data is measured:
Distance to static target: Distance in meters to major static target closest to the sensor
MovementSlow: Movements for the previous 15 seconds shown as a relative number from 0
to 100 where 100 indicates most movements, for 5.14 cm intervals in the entire detection
zone
MovementFast: Movements for the previous 1 seconds shown as a relative number from 0
to 100 where 100 indicates most movements, for 5.14 cm intervals in the entire detection
zone
When in Presence state, the following additional data is measured:
Distance to closest moving target: Distance in meters to moving target closest to the
sensor
Novelda AS
www.xethru.com

Copyright © 2017 Novelda AS X4M300

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