meter-reader 1.0.0

Client Library for retreiving smart meter data from an Eagle Energy Gateway

Meter Reader is a client library and command line client for retrieving nearly realtime energy usage data from a smart meter via the Eagle Energy Gateway. See the following for more: http://www.rainforestautomation.com

Meter Reader is not affiliated with the Eagle Energy Gateway or Rainforest Automation.

Installation

$ pip install meter-reader

Usage

Meter Reader is intended to be used as a library for other applications but it does contain a command line application called mr:

$ mr < ip address >

This will run the LIST_DEVICES devices command on the gateway and display a formatted response. Other commands, such as GET_DEVICE_DATA, will first run the LIST_DEVICES command to determine the MAC address of the gateway.

Commands can be specified with the ‘-c’ option. For example:

$ mr -c GET_DEVICE_DATA < ip address >

MessageCluster
    DeviceMacId          xx:xx:xx:xx:xx:xx:xx:xx
    MeterMacId           xx:xx:xx:xx:xx:xx:xx
    TimeStamp            0
    Id                   0
    Priority             None
    Text                 None
    ConfirmationRequired N
    Confirmed            N
    Read                 Y
    Queue                active
CurrentSummation
    DeviceMacId          xx:xx:xx:xx:xx:xx:xx:xx
    MeterMacId           xx:xx:xx:xx:xx:xx:xx
    TimeStamp            2014-04-19 16:01:22+00:00
    SummationDelivered   12949746
    SummationReceived    0
    Multiplier           1
    Divisor              1000
    DigitsRight          3
    DigitsLeft           15
    SuppressLeadingZero  Y
NetworkInfo
...

$ mr -c GET_SUMMATION_VALUES < ip address >

2014-04-18 16:30:00+00:00, Summation, 0.350
2014-04-18 17:30:00+00:00, Summation, 0.322
2014-04-18 18:30:00+00:00, Summation, 0.193
2014-04-18 19:30:00+00:00, Summation, 0.285
2014-04-18 20:30:00+00:00, Summation, 0.286
2014-04-18 21:30:00+00:00, Summation, 0.351
...

There are two ways to retrieve instantaneous demand:

1. Send the GET_INSTANTANEOUS_DEMAND command directly to the gateway. This will return a nearly raw response from the gateway (formatting is applied).

$ mr -c GET_INSTANTANEOUS_DEMAND < ip address >

    InstantaneousDemand
    DeviceMacId         xx:xx:xx:xx:xx:xx:xx:xx
    MeterMacId          xx:xx:xx:xx:xx:xx:xx
    TimeStamp           2014-04-19 15:35:27+00:00
    Demand              297
    Multiplier          1
    Divisor             1000
    DigitsRight         3
    DigitsLeft          15
    SuppressLeadingZero Y

2. Supply the --get-instant-demand argument. This will post-process the response before displaying it.

$ mr --get-instant-demand < ip address >

2014-04-19 15:58:39+00:00, 0.292kW

Raw and unformatted data returned by the gatway, can be viewed by using the ‘-r’ option:

$ mr -r -c GET_DEVICE_DATA < ip address >

Including meter_reader in an application

from meter_reader import Gateway

GATEWAY_ADDRESS = '192.168.1.10'

gw = Gateway(GATEWAY_ADDRESS)
response = gw.run_command('GET_DEVICE_DATA')
print('Network Info')
print(response['NetworkInfo'])

timestamp, demand = gw.get_instantaneous_demand()
print('Demand {0} at {1}'.format(demand, timestamp))

Copyright (c) 2014, Emmanuel Levijarvi All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.