Campbell CRVW3, Инструкция по эксплуатации

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CRVW3 3-Channel Vibrating-Wire Datalogger
58
Skip the instructions at the end of Section 10.7.2 , Configuring the Network
Map of LoggerNet
(p. 80)
, regarding repeater stations. You can optionally follow
the instructions in Section 10.7.3 , Connecting to CRVW3 Stations
(p. 86)
, to
confirm connections to each CRVW3 station, though it probably isn’t
necessary once you can check the clock on each device. Next, you should
follow the instructions in Section 10.7.4 , Setting up Automatic Data Collection
(p. 87)
, to set up automatic data collection.
For details about the design and implementation of large or complex CRVW3
radio networks, see Section 10
, Complex (Large) Radio Networks
(p. 58)
. Refer
to Section 11 , Operation of CRVW3 Networks
(p. 88)
, Section 12 , Maintenance
of CRVW3 Networks
(p. 96)
, and Section 13 , Troubleshooting CRVW3 Networks
(p. 101)
, for information on how to operate, maintain, and troubleshoot CRVW3
radio networks, such as those created using the process described in this
section.
10. Complex (Large) Radio Networks
As the number of radio-enabled CRVW3 devices increases, or as more
complex terrain or other geographical constraints emerge within your system,
additional consideration must be given to radio network design and operation.
Refer to Section 9 , Radio Networks
(p. 51)
, for a basic definition of a radio
network. Refer to Section 9.1 , Simple Radio Network Definition
(p. 52)
, to see if
your system requirements can be satisfied using a simple network design.
To implement a large radio network, it is important to understand in detail the
types of stations that can form the nodes of the network. Planning the network
layout (before hardware is purchased) becomes a necessity. Each station needs
to be deployed to its site properly followed by the validation of radio
communications. Station operation is confirmed using
LoggerNet
. Proper
deployment and configuration of the network ensures that the data collection
process operates smoothly.
10.1 Radio Network Station Types
Consider the six most common station types (network nodes) that are the
building blocks of a CRVW3 radio network:
1. LoggerNet computer station
2. Base radio station
3. CRVW3 end-node station
4. CRVW3 repeater station
5. Dedicated repeater station (repeater-only station)
6. Aggregating datalogger station
As you design the network, you must determine which station types are
required to measure all of your deployed sensors, and then you must ensure
that each station can adequately communicate with one or more adjacent
stations. Definitions and connectivity information are provided here for each
station type.
10.1.1
LoggerNet
Computer Station
The costs associated with implementing and maintaining a radio network are
usually justified by the ability to automatically collect data from sensors in a
way that minimizes on-site technician visits. This automatic collection is