2021 MANUAL Desksense P190201, P190202, P190203 V04
Contents Introduction ................................................................................................................................................... 2 Important information .................................................................................................................................... 3 Read this manual before attempting to install the device! .......................................................................... 3 Declaration of conformity ......................
Introduction An intelligent sensor solution to monitor desk occupancy. The Desksense sensor is a battery-powered device designed to be long-lasting and easily deployable using LoRaWAN wireless networks. The device’s intelligent software determines desk occupancy based on PIR sensor data. Desksense’s Intelligence allows you to operate the fleet of sensors at a low cost. The sensor transmits presence information instead of continuous motion data this transmission scheme reduces the time on the air.
Important information Read this manual before attempting to install the device! Failure to observe recommendations included in this manual may be dangerous or cause a violation of the law. The manufacturer, Head Electronics B.V. will not be held responsible for any loss or damage resulting from not following the instructions of operating manual. Declaration of conformity Hereby, the manufacturer declares that Desksense 2 complies with the essential requirements of RED (2014/53/EU).
Features The main and only function of the Desksense is monitoring desk occupancy. Occupancy The main purpose of the device is to determine the occupancy state of a desk. This is different from “dump” motion sensors, these will transmit every time motion has been detected. The sensor determines and keeps track of the occupancy state of a desk, only transmitting when the occupancy state of a room has changed.
General information Battery replacement The housing of the Desksense is design in such a way it cannot be easily opened by an unauthorized user. When the sensor is mounted below a desk is can be opened for battery replacement by inserting a hex key to move the locking latch out of the way and sliding the housing forward. Unlocking housing latch using 2 mm hex key. Security Every session is encrypted using a unique session key.
Detection Area The detection area is determined by the installation high and temperature difference of the target. A special flat Fresnel lens and focus hole are used, creating 12 detection zones below the desk allowing the sensor to detect leg and feet movement below the desk allowing the sensor to determine the desk occupancy state. Note that the detection area changes depending on the installation high.
Technical specifications The table below list the main technical and sensor parameters. LoRaWAN Class Class A Motion sensor detection angle 30° x 21° Battery life * >2 years Operating voltage 2.2 - 3.6 VDC (~12 uA in deep sleep) Frequency plan options EU868, US915, IN865 (AU915, AS925). Dimensions 138 x 76 x 29 mm Processor ARM Cortex-M0+ (32 MHz) Weight 0.120 Kg (including batteries), 0.070 Kg (excluding batteries) *Theoretical value based upon factory settings at room temperature.
Ordering information Make sure to order the correct model matching your deployment region. This is due to the fact LoRaWAN networks operate in different frequency bands depending on the region. The Desksense currently supports four different regions. Model overview The table below shows all currently available models. Every model can be uniquely identified by its “Model ID” and must be specified when ordering.
Legal Note Legal Note All information, including, but not limited to, information regarding the features, functionality, and/or other product specification are subject to change without notice. Head Electronics BV reserves all rights to revise or update its products, software, or documentation without any obligation to notify any individual or entity. Use of Head Electronics BV.
