Rainforest EAGLE - jfederico/openhab GitHub Wiki
#Rainforest EAGLE™ Energy Access Gateway# The Eagle lets you retrieve the data from your smart meter locally with out having to pull the data from the cloud.
You will need to add the gateway to your energy meter through your electric company. Here in Texas there is a website devoted for smart meters. SmartMeterTexas.com
After the gateway is added to the meter you will need to disable local security.
In the web portal click the down arrow next to date. at the bottom of that page click the gear.
uncheck the security box.
While you are in the Eagle gateway page look at the URL at the top and note the IP and MAC for setting up the .RULES file.
In my setup I created separate item and rule files for power.
Group GPersist (All)
Group GMonitorPower
Group GMonitorEnergy
Number HousePowerInstant "SmartMeter Power [%.3f]" <energy> (GMonitorPower,GPersist)
Number HouseEnergyDelivered "SmartMeter Energy Delivered [%.3f]" (GMonitorEnergy,GPersist)
Number HouseEnergySent "SmartMeter Energy Sent [%.3f]" (GMonitorEnergy,GPersist)
Number HouseEnergyPrice "SmartMeter Energy Price [%.3f]" (GMonitorEnergy,GPersist)
Number HouseEnergyCost "SmartMeter Energy Cost [%.3f]" (GMonitorEnergy,GPersist)
import org.openhab.core.library.types.*
import java.lang.Float
import java.lang.Long
import org.joda.time.DateTime
var DateTime lastTimestamp = null
var float lastDelivered
var float lastReceived
rule "Pull Data from Eagle"
when
Time cron "0 0-59 * * * ?"
then
var t = now
val String EAGLE_MAC = "0xe1e100000e1e10"
val String EAGLE_URL = "http://192.168.1.13/cgi-bin/cgi_manager"
var String postData = String::format("<LocalCommand>
<Name>get_usage_data</Name>
<MacId>%s</MacId>
</LocalCommand>", EAGLE_MAC, EAGLE_MAC)
var result = sendHttpPostRequest(EAGLE_URL, "application/x-www-form-urlencoded", postData)
try {
var long timestamp = Long::parseLong(transform("JSONPATH", "$.demand_timestamp", result))
var DateTime currTimestamp = new DateTime(timestamp * 1000)
var float price = Float::parseFloat(transform("JSONPATH", "$.price", result))
var float currDemand = Float::parseFloat(transform("JSONPATH", "$.demand", result))
var float currDelivered = Float::parseFloat(transform("JSONPATH", "$.summation_delivered", result))
var float currReceived = Float::parseFloat(transform("JSONPATH", "$.summation_received", result))
postUpdate(HousePowerInstant, currDemand * 1000)
if (lastTimestamp != null && !lastTimestamp.equals(currTimestamp)) {
var float used = currDelivered - lastDelivered
var float sent = currReceived - lastReceived
logDebug("eagle", String::format("Energy %s demand=%.3f received=%.3f delivered=%.3f", currTimestamp.toString,
currDemand, used, sent))
postUpdate(HouseEnergySent, sent * 1000)
postUpdate(HouseEnergyDelivered, used * 1000)
postUpdate(HouseEnergyCost, (used - sent) * 1000 * price)
}
postUpdate(HouseEnergyPrice, price)
lastDelivered = currDelivered
lastReceived = currReceived
lastTimestamp = currTimestamp
} catch (NumberFormatException nfe) {
logError("eagle", "Bad Data " + result.replaceAll("\n", " "))
}
var long x = now.getMillis - t.getMillis
logInfo("eagle", "PERF Pull-Data-from-Eagle elapsed: " + String::valueOf(x) + "ms")
endNote: When you update the EAGLE_URL and the EAGLE_MAC, note the MAC is 18 characters starting with "0x"
==References==