Parametric LoRaWAN Radar People Flow Sensor, PCR1 User Manual

Users Manual

LoRaWAN Radar People Flow

Sensor

PCR1-LR_V1_Useres_Manual-03_en / 06.04.2018

PCR1 Version 3 Users manual

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Functional description ..................................................................................................................................3

Device start (LED flashes slowly) ..............................................................................................................3

Operation (LED off) ...................................................................................................................................3

Error status (LED flashes quickly)..............................................................................................................3

Installation ....................................................................................................................................................4

Optimum placement / detection range ....................................................................................................4

Wall mounting ..........................................................................................................................................5

Ceiling mounting .......................................................................................................................................5

Electrical connection.................................................................................................................................5

Device Setup .................................................................................................................................................6

Payload ...................................................................................................................................................... 10

Payload examples .................................................................................................................................. 10

Payload decoding using JavaScript ........................................................................................................ 11

Ratings and Specifications ......................................................................................................................... 12

Troubleshooting ......................................................................................................................................... 14

LED Blink codes ...................................................................................................................................... 14

F.A.Q. ..................................................................................................................................................... 14

Contact ....................................................................................................................................................... 15

PCR1 Version 3 Users manual

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Functional description

PCR1 is a radar-based people flow sensor with LoRaWAN data connection.

The integrated radar sensor detects persons moving in parallel to the housing surface.

A person is counted as soon as he or she enters and leaves the detection zone. The unit can be
installed horizontally at a height between 125 and 140 cm or upside down at a ceiling. The maximum
measuring distance (distance between sensor and person) is 10m.

The number of persons counted is transmitted cyclically via a LoRaWAN connection.

Device start (LED flashes slowly)

After applying the operating voltage, the device is logged on to the LoRaWAN network. During this
phase the LED flashes slowly. After successful registration the LED goes off.

Operation (LED off)

In normal operation, all persons entering and leaving the sensitive area of the radar are counted. This
is indicated by a short lightening of the LED. The movement of the persons must be carried out
parallel to the surface of the device. Fast movements, e. g. of hands or objects, are ignored to avoid
miscounting.

Error state (LED flashes quickly)

The device changes to error status in following conditions:

• The LoRaWAN configuration is incomplete

• Access to the LoRaWAN network is denied.

• There is no LoRaWAN available in the area or signal is weak.

You can use our free PCR1 Setup Tool to find out more about the current error.

The device tries to reconnect after one minute in error state.

PCR1 Version 3 Users manual

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Installation

The person counter can be mounted either laterally or overhead. The maximum
Detection distance is approx. 10 m. The best results are achieved if the housing surface is parallel to
the walking direction.

Important! This device is based on the principle of approximation and distance from the
Doppler-Radar sensor. People are counted from every direction.

Optimum placement / detection range

The device is equipped with a highly sensitive Doppler radar sensor. Movements at an angle of +/- 40°
horizontal and +/- 17° vertical are detected up to a distance of 10m.

For optimal function please note:

• A person is counted as soon as both areas are crossed. However, it does not matter in which

order this is done.

• Both areas should be the same size and should not be covered by objects or walls.

• Avoid moving objects like escalators or revolving doors in sensor range

A

B

±40
°

±10
°

PCR1 Version 3 Users manual

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Wall mounting

For side mounting, e. g. on a door frame, the following must be observed:

• The person counter should be mounted at a height of 125... 140 cm from the floor. We

recommend 135 cm.

• The device should be mounted upright for the maximum detection range

• The front side of the device should be parallel to the walking direction.

Ceiling mounting

The person counter can be mounted on a ceiling to count people passing underneath the device.
Please note the following:

• The distance between the unit and the persons passing through below should be more than

50cm.

• The device should be mounted crosswise to the walking direction.

Electrical connection

The device is supplied with a 5V power supply unit with micro-USB connection.

Open the cover on the back of the housing and insert the micro-USB plug into the
corresponding socket.

125

…

140

cm