GPS tracking website code modification

I need someone to modify the following project: [login to view URL] I own a license and will share the code with you if you accept the job. Here are the modifications I need: 1. Realtime updates on the map as new coordinates are received by the GPS trackers using either node.js or I am open to suggestions 2. If a tracker is not slept and begins sending locations with movement, an audible alert needs to sound and continue sounding until it is reset by the user. 3. The ability to "sleep" a tracker for a certain amount of time. The website will show an alert icon but will not make an audible sound. 4. The different trackers should be added by their IMEI number which will be transmitted by the tracker to the website, so we need a parameter for that.