Rainforest EAGLE

#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.

power.items

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)

power.rules

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")
end

Note: When you update the EAGLE_URL and the EAGLE_MAC, note the MAC is 18 characters starting with "0x"

==References==

1. https://community.openhab.org/t/rainforest-zigbee-smart-energy-support/6595