Motorola RD5000, Руководство интегратора

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7 - 12 RD5000 RFID Integrator Guide
MPS Settings
The RFIDDemo behavior is configurable. Click on Settings from the RFIDDemo Load Window on page 7-5 or from
File->Device Settings , RFID- Settings window appears. These settings are persistent and will be restored on a
device cold boot. Once the settings have been modified, exit and relaunch application to enable new settings.
Figure 7-7
MPS Settings Window
Reader MPS Settings:
•
Proximity On :
Selects the proximity sensor enable/disable and proximity events. Check box to enable the sensor. Sensor is
enabled and proximity raw values are reported along with proximity events (detect and clear) based the
detection level set using the
Events at drop down list.
•
Events at :
This input sets the range for generating proximity detection (PROX_DET) and clear (PROX_CLR) events.
When set to 1.5ft, device generates a PROX_DET event when an object moves to within 1.5ft of the device.
A PROX_CLR event is generated if the object moves more than 1.5 ft away from the device.
The maximum range setting is 8ft. There are different detection levels possible in the range 1.5ft to 8ft. The
detection range can be set to these values: 1.5ft, 2ft, 3ft, 4ft, 5ft, 6ft, 7ft, 8ft.
Automating the RFID tag reading can be used as an example of maximizing the power usage efficiency.
For Example: Setting the proximity detection range at 2.5ft generates a PROX_DET event when an object
appears within the 2.5ft setting. The PROX_DET event triggers RFID reader in the demo application to turn
on and read tags. If the object moves away (beyond 2.5ft from the reader) the PROX_CLR event is
generated and the PROX_CLR event stops the RFID reader module. The reader automatically stops reading
the tags and conserves power, by not keeping the RFID reader module on.
•
Motion on :
Selects the motion sensor enable/disable and motion events. Check box to enable the sensor.
The motion events are based on velocity changes and are depending on values set in the
Velocity
Thresholds parameters.
The motion events can also be used to trigger the RFID reader ON and OFF.
There are different motion events; FWD_START, BKWD_START with a FWDBKWD_STOP and
UPSD_START, DNSD_START with a UP_DN_STOP event. The start events are set to turn the RFID reader
module ON and the stop events turn the reader module OFF.
For detailed information on setting thresholds refer to
Appendix B, Motion Sensor Parameters .
•
Read Back :
The Read Back button displays the current threshold values in the corresponding parameter text boxes. The
current parameters values are read back from the Atmel controller (that controls the motion sensor).
•
OK
OK , updates the Atmel with the displayed values, if motion sensor is enabled.
•
Cancel:
Cancel exits the MPS Settings and returns to the RFIDDemo Load Window , Figure 7-3 on page 7-5 .