Is there any way to load google maps api from custom plugin before the plugin codes executed?

Is there any way to load google maps api from custom plugin before the
plugin codes executed?

I am developing a google map integrated plugin and i want that, let google
maps api v3 is loaded from my plugin before the plugin codes executed.
I tried to use $getscript but didn't work, i tried to put all codes into a
function (called initialize()) and execute this function when the plugin
activated but this time, my plugins' options are corrupted and i get
errors. I tried appendto() method but nothing changed.
I've searched many places to solve this issue, but no success..
Is there any proper way to solve this problem? thanks...
I am calling my plugin like that:
$('div#mapid').plugin_name({opt1:'val1',opt2:'val2',opt3:'val3'});
and my plugin is coded like that
(function($) {
$.fn.plugin_name = function( options ) {
var settings = $.extend(true,{
// default plugin options
}, options);
//plugin codes
}
}(jQuery));