Opticon Sensors Europe BV EE201 用户手册
EE202 Specifications manual
The operating time of the batteries is based on any of the following factors that influence
the battery life:
the battery life:
Factor
Default values and
estimated averages
Correlation *
(Higher is better)
Influence
Polling for data &
reporting settings
reporting settings
Interval: 20 seconds
Retransmissions: 10%
Report ratio: 1 to 39
Retransmissions: 10%
Report ratio: 1 to 39
Yes
No
Yes
No
Yes
61%
Display updates
4 updates per day
Temperature: 15-25° C
Temperature: 15-25° C
No
No
No
20%
Out of range /
base station OFF %
base station OFF %
Not connected: 2%
Number of channels: 5
Number of channels: 5
No
No
No
4%
Sleep time
99,9%
Yes
9%
Battery self-discharge
1 % / year
No
6%
* The correlation shows whether increasing the listed value increases or decreases the
power consumption of the ESLs.
power consumption of the ESLs.
For example:
•
Increasing the poll interval lowers the power consumption
•
Turning off the base stations increases the power consumption
•
A lower operating temperature increases the power consumption
•
More display updates per day increase the power consumption
7. Radio Specifications
Parameter
Min
Typ
Max
Unit
Remarks
Receiver sensitivity
-97
-89
dBm
Over the entire temp. and
operating voltage range
Nominal output power
-3
4.5
7
dBm
Frequency
2405
2480
MHz
Over the entire temp. and
operating voltage range
Transfer rate
250Kbit/s
RSSI range
100
dB
Signal strength indication
that can be reported to the
base station
7.1. Protocol
Modified 802.15.4 (Physical layer and Media Access Control layer).
7.1.1.
The physical layer
The physical layer (PHY) provides the data transmission service, as well as the interface
to the physical layer management entity, which offers access to every layer management
function and maintains a database of information on related personal area networks.
Thus, the PHY manages the physical RF transceiver and performs channel selection and
to the physical layer management entity, which offers access to every layer management
function and maintains a database of information on related personal area networks.
Thus, the PHY manages the physical RF transceiver and performs channel selection and
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