Jorjin MM5D91E0B User manual
Doc No: MM5D91E0B-UG-D01
Copyright ©JORJIN TECHNOLOGIES INC. 2020
http://www.jorjin.com.tw
CONFIDENTIAL
Page 1
Index
1. INTRODUCTION ................................................................................................................... 2
2. HARDWARE DESCRIPTION................................................................................................... 3
2.1. HARDWARE OVERVIEW....................................................................................................3
2.2. SCHEMATIC DIAGRAMS....................................................................................................4
2.3. DIMENSIONS .................................................................................................................6
3. SOFTWARE DESCRIPTION.................................................................................................... 7
3.1. MODULE CONFIG SOFTWARE............................................................................................7
3.2. SET AND GET CONFIGURATION..........................................................................................9
3.3. GETTING START WITH SMART ENTRANCE COUNTER SOLUTION ..............................................11
3.4. FIRMWARE UPDATE.......................................................................................................12
4. SMART ENTRANCE COUNTER SETUP................................................................... 13
5. HISTORY CHANGE.............................................................................................................. 15
Doc No: MM5D91E0B-UG-D01
Copyright ©JORJIN TECHNOLOGIES INC. 2020
http://www.jorjin.com.tw
CONFIDENTIAL
Page 2
1. INTRODUCTION
The MM5D91-0B is the Smart Entrance Counter sensor solution which integrates
60GHz mmWave technology counts number of people entering and/or exiting an
entrance. The module simplifies the implementation of mmWave sensors in the band of
61.0 to 61.5GHz, and it includes the ARM Cortex-M4F based processor system, 1Tx 3Rx
antenna and onboard regulator.
The Jorjin mmWave Radar sensor evaluation kit MM5D91E0B shows as below. Based
on the MM5D91-0B Radar sensor module, evaluation board is built to demonstrate the
function of entrance counter of the 60 GHz radar sensor with its sophisticated radar
presence detection algorithms. This evaluation kit is easy for demo and development for
customer.
TOP side Bottom side
Figure 1-1. MM5D91E0B mmWave Radar Evaluation Kit
Doc No: MM5D91E0B-UG-D01
Copyright ©JORJIN TECHNOLOGIES INC. 2020
http://www.jorjin.com.tw
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2. HARDWARE DESCRIPTION
2.1. Hardware Overview
The following figure and table describe physical sections of the board.
Figure 2-1. Hardware description of Evaluation Kit
Table 2-1. Evaluation Kit component descriptions list
Region
Description
A
Jorjin mmWave Radar sensor module.
B
User - Press the button and power up or reset to enter bootloader mode.
Reset - Radar sensor module reset switch.
C
LED of radar detect status:
-Green color: No people detected.
-Red color: People are detected in setting area.
D
Red LED light when the evaluation kit is power on.
E
Interface setting: Turn up of left two / Turn down of right two.
Please keep the setting always.
F
Micro USB connector. Connected to PC (config tool) or power bank to demo.
E
F
A
C
D
B
Doc No: MM5D91E0B-UG-D01
Copyright ©JORJIN TECHNOLOGIES INC. 2020
http://www.jorjin.com.tw
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3. SOFTWARE DESCRIPTION
3.1. Module Config Software
The Entrance Counter Config tool in the link: TBD
Connect the radar board to PC through USB, open the config tool.
If the OS is Windows 7 or lower, please find the USB driver in the link.
Doc No: MM5D91E0B-UG-D01
Copyright ©JORJIN TECHNOLOGIES INC. 2020
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Select the correct COM port number (e.g. COM6) and press Connect button.
If the board is successfully connected, a firmware version would be shown in the box.
Otherwise, a fail message would be shown at bottom.
Doc No: MM5D91E0B-UG-D01
Copyright ©JORJIN TECHNOLOGIES INC. 2020
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3.2. Set and Get Configuration
User can set or get the configuration of the radar at the Config tab page. Currently
following items are available:
Item
Description
Version
Get the firmware version in MCU.
Counter detect on/off
Set entrance counter detect on or off. Default is on.
RFCW mode
Enable or disable the RF continuous wave mode for FCC test.
Presence detection needs to be off before enabling this mode.
Disable: Disable RFCW mode.
-Low: Set RFCW output at 61.02GHz
-Mid: Set RFCW output at 61.25GHz
-High: Set RFCW output at 61.48GHz
-Low TX off: Set RFCW test at 61.02GHz with TX off
-Mid TX off: Set RFCW test at 61.25GHz with TX off
-High TX off: Set RFCW test at 61.48GHz with TX off
Temperature
Get temperature on radar chip (°C)
Sleep mode
Set the radar module into deep sleep mode. The module would
wake up again when data received at UART RX pin. A preamble
byte such as 0x00 is needed to add in the next command to have
the command correctly received at the module (to compensate
wakeup delay time).
Unique ID
Get the unique ID of the module.
Reset config
Reset all setting storing in flash to default.
Doc No: MM5D91E0B-UG-D01
Copyright ©JORJIN TECHNOLOGIES INC. 2020
http://www.jorjin.com.tw
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3.3. Getting Start with Smart Entrance Counter Solution
User can set or get the configuration of the radar at the Counter event tab page. Currently
setting items are available:
⚫Sensor Position : Depending on the location of installation, select either ceiling or side.
⚫Ceiling Height: The height at which the module is mounted. The maximum height is 3m.
⚫Min Person Height: The height limit of the person. The maximum height is 2m.
⚫Entrance Width: The width of the passage or the entrance. The maximum width is 3m.
⚫Traffic Light Zone: The detection zone of the smart entrance counter solution.
⚫Sensitivity: Changing the sensitivity changes the threshold for triggering the count. At
higher senility, the threshold is closer to the noise floor.
⚫Sensor Orientation: The sensor can be mounted either in the portrait mode or in
landscape orientation. The figure below describes the definition of longer and shorter
edge.
⚫Counting: To set the direction of in / out
Doc No: MM5D91E0B-UG-D01
Copyright ©JORJIN TECHNOLOGIES INC. 2020
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3.4. Firmware update
Firmware update can be done in the Firmware update tab page. Select the target .bin file by
pressing Select button. Bootloader mode would be entered automatically during the update process.
In case a non-working firmware is loaded, user can manually force the module to enter bootloader
mode by pressing the user button on the mother board after power up or reset. The LED would change
to blue color when bootloader mode is entered.
Then press Flash button to start the firmware update. Whole update process would take around 30
seconds. Although protection mechanism is added in the update process, it is recommended not
unplugging the USB or power off the board to prevent any unexpected error.
Doc No: MM5D91E0B-UG-D01
Copyright ©JORJIN TECHNOLOGIES INC. 2020
http://www.jorjin.com.tw
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Page 13
4. SMART ENTRANCE COUNTER SETUP
The Radar evaluation kit can be mounted in following ways:
⚫Side mount:
Portrait orientation at around 1.1-1.5m on a wall/door/pillar in such a way that radar
sensor is facing the entry/exit passage from side for people counting. For side mount, it is
recommended to set the maximum range parameter based on the width of the entrance in
such a way that it is lesser than the distance of sensor to the wall (if any).
Doc No: MM5D91E0B-UG-D01
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⚫Top/Ceiling mount:
Mounted at a height of up to 3 m from ground, sensor board longer edge (FOV Elevation)
being perpendicular to the passage. It is recommended to limit the maximum range of
solution to the height of sensor board from ground for good performance.
FOV Azimuth
FOV Elevation
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⚫Operating Sequence:
1. Initial: Traffic light is GREEN
2. Person enters RED area: Traffic light switch to RED (STOP)
3. Person stays in whole sensor area: light keeps RED (STOP)
4. Person goes out of sensor area: light switches to GREEN and IN or OUT event is
generated respectively
5. HISTORY CHANGE
Revision
Date
Description
Draft 0.1
2021-03-22
Draft version.
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