Get Registered events and delete from them

Hello,

I try to get the last event recorded, but with the request below, I have several events but not included the last or current event (Parking or Trip).

Have you an idea please ?

Thank you for your help,
Tahar

var to = sess.getServerTime()
var from = to - 3600*12;

interval = [from, to];

var params = {
        itemId: id,
        eventType: "trips",
        ivalType: 1,
        ivalFrom: interval[0],
        ivalTo: interval[1]
    };

wialon.core.Remote.getInstance().remoteCall("unit/get_events", params, function(code, events) {
        if (code || !events)
            return;

        var resultTrips = events.trips;
}