User manual

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IX.2.2 Running as Part of WiRobot System

When using the DHM5150 with the WiRobot system, user can simply connect the module to one of

the human sensor module connectors on the PMS5005 controller board and the PMS5005 built-in

sensor device driver will take care of the data acquisition. Users can simply call a function offered by

the WiRobot SDK software on PC (requires Microsoft platform) or send a data request packet

(platform independent) to obtain the data.

IX.2.3 Running as a General Purpose Human Motion Sensor Module

When using the DHM5150 with a third party controller, the power supply and the input/output signals

should be connected properly (please refer to Section IX.3). The controller can get the human

information data via an analog to digital converter.

There are analog outputs, one is the human motion (MS), and the other one is the human alarm (AS).

When no human presents, output voltage of MS and AS is 1.5V. The change of AS is basically 5 times

larger than MS due to the on-board amplifier. The closer the human and the faster the motion will

cause the longer voltage change shown in MS and AS.

Note that when using two sets of the DHM5150 for human motion detection, the moving direction

information can be identified by analyzing the pattern, timing and magnitude of two sensor output

signals.

IX.3 Connections

IX.3.1 Board Structure

Figure IX.2 illustrates the structure of the board.

Figure IX.2 DHM5150 Structure

IX.3.2 Connector Description

The DHM5150 can be connected to the controller system via a 4-pin 2.54 mm-pitch single row

connector:

Table IX.1 DHM5150 Connector

Pin Name Function

1 Vcc Positive power source, 5 V DC

2 MS Human motion signal, analog output

3 AS Human presence alarm, analog output

4 GND Power ground