This app was mentioned in 1 comment, with an average of 1.00 upvote
This app looks like it does what you want. -> https://play.google.com/store/apps/details?id=com.dunntech.areyouthereyet
Another option that my family uses is something like Find My Friends (https://support.apple.com/en-us/HT201493) or Google+ location sharing (https://support.google.com/plus/answer/2998354?hl=en) so they can check on your location at any point in your trip.