Any code to filter motion detector?

jmay33 · August 15, 2015, 4:46am

I have code that subscribes to motion detector activity and pushes it out via a web service.
With my Aeon multi-sensor, it re-triggers every 15 seconds. So if you are in the room for 10 minutes, you would get 80 messages.(40 active and 40 inactive).

Anyone have code that would filter the messages so that it requires you to be gone for 1 minute.

If there is constant motion for 6 hours, then no motion for 1 minute - there should only be 2 messages total sent. One active and one inactive

JDRoberts · August 15, 2015, 5:15am

Which model of multisensor?

One option would be to have the activity on the motion sensor change the mode, and then have a separate smart app which changes the mode again after Inactivity. Then ignore all the activity that occurs during the mode that was set by the first activity.

So:

Current mode: Ready.

Motion occurs. Notify, and set mode to Motion Already Detected.

Ignore all motion if mode is Motion Already Detected.

If Inactive for 15 minutes, notify and change mode to Ready.

tgauchat · August 15, 2015, 6:22am

If this is done in a single SmartApp (alert and delay…), then you can use state or atomicState to maintain that “activate mode” instead of the global location.mode.

I wish SmartThings provided more globals (there’s only one – location.mode!), but at least we have persistent state within SmartApps and Device Handlers, and you can create Virtual Devices to store and share an attribute between SmartApps (e.g., you could have a Virtual Switch that turns the motion sensing “off” for any number of motion alerting SmartApps that first check that Virtual Switch…).

Mode filtering is built into a lot of SmartApps and the Dashboard Solution Apps … for better or worse. It means that if you add any modes, you may have to edit the configuration of some or all of the SmartApps to accommodate the new mode.

kevintierney · August 15, 2015, 12:08pm

Couldn’t you store the last motion timestamp? When there is motion, calculate now - last motion. if over 60 seconds, do alert and update last motion timestamp. if less then 60 only update timestamp

jmay33 · August 15, 2015, 1:11pm

probably, that is why I am looking for some example code of how that might be done in Groovy / IDE. Right now I have code that ships out data I care about to my server (running C#) for processing and I can send commands back into the hub. I really just know enough about Groovy to do that. I would have (and still might) implement this logic on my side, but this is the more sensible place if I could make it simple and scalable to do.

This was really an implementation question more than a logic question.

jmay33 · August 15, 2015, 1:13pm

BTW, if you are interested in how I implement check out following demos

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www.vasmarthome.org/Sample
www.colbrenhomes.com

ritchierich · August 15, 2015, 1:54pm

Jeff, I implemented something similar in a SmartApp that monitors my garage fridgerator. You can review the entire post here:

Arduino ThingShield Fridge/Freezer Monitor Projects & Stories

Having lost a lot of food and beverages when my previous garage refrigerator failed, I have been a little paranoid about it happening again. For the past few years I have been using a temperature monitor that integrates with a La Crosse weather station I bought. But this solution has been very limited and is mostly false positives and has an annual fee. I get alerted via email when my children go raiding the freezer for ice cream as an example. I recently bought an Arduino and decided to tackle something to alert me based on my criteria instead. Thus the Fridge Monitor was developed. I would assume others in the Community live in areas with warm summers or have young children so I thought I would share this project. Parts you will need: Arduino Uno R3 - http://www.amazon.com/dp/B0…

In that article is a link to the SmartApp code as well as here:

github.com

mlritchie/SmartThings/blob/master/Fridge-Monitor/Fridge Monitor SmartApp

/**
 *  Fridge Monitor
 *
 *  Copyright 2015 Michael Ritchie
 *
 *  Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
 *  in compliance with the License. You may obtain a copy of the License at:
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software distributed under the License is distributed
 *  on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License
 *  for the specific language governing permissions and limitations under the License.
 *
 */
definition(
    name: "Fridge Monitor",
    namespace: "mlritchie",
    author: "Michael Ritchie",
    description: "SmartApp that monitors an Arduino ThingShield with two temperature probes in a fridge and freezer.",

This file has been truncated. show original

Basically I set a state variable with a time stamp and then compare it to a threshold to determine if I need to perform an action.

I hope this helps.

tgauchat · August 15, 2015, 6:35pm

Wow… That’s a lot of data… But usefully presented!
Great job!

Any code to filter motion detector?

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