Split view does not reload data on the Master View

Hello. I am implementing a split view using SWReveal with UITableViewController as my master view and UIViewController as my Detail view. The detail view connects to a server every five seconds and downloads dynamic data which changes every time it connects. I want to display this data on my Master View. The problem is that the data does not get updated on the UITableViewController.

In my Detail View, I have this:

let tableMenuObj = IGAAcarsMenuTableVC()
    self.tableMenuObj.refreshData()

And in my Master view (IGAAcarsMenuTableVC), I have this:

func refreshData()
    {
        self.arrayOfAcarsData = ["Latitude|" + appSingleton.currentLatitudeShared,
            "Longitude|" + appSingleton.currentLongitudeShared,
            "Heading (mag)|" + appSingleton.currentHeadingShared]

        self.tableView.reloadData()
    }

The data itself is being changed, I have checked that. But the table does not reload the data. Am I doing it wrong?

Thank you!