there are different ways you can achieve that:
- use the Android Edge SDK in your Abdroid app to send the data to the Thingworx server (you'll have to use port 8443). A link to the documentation is included in the marketplace page that the link points to.
- Use the Thingworx REST API from your Android app and send the data to a service that you create for it. You can send the data in json format with an http/s Post request. Check out the documentation of the Thingworx REST API for more details.
you can search the Thingworx Developer community from thew top right search box. For the topics I found excellent material:
There is a great intro to the Android SDK in the developer community: Getting Mobile with ThingWorx and Android