地理位置高度问题

Question

当我尝试使用地理定位服务找到自己时，我的位置不正确。我在13楼，所以我认为这可能是一个问题。我到外面去了一分钟，在地面测试它，并且它有效。所以，现在我试图找出一种方法来纠正海拔高度。我已经检查了所有问题和所有问题，但我发现任何足够接近的东西都无法帮助我。我尝试过highAccuracy方法，但没有任何结果。这是我的代码：

var you;
var directions;
var directionsService = new google.maps.DirectionsService();
var geocoder = new google.maps.Geocoder();


var pj = {
    address: "57575 190th Street, Pacific Junction, IA 51561",
    latitude: 41.018899,
    longitude: -95.822685
};
var tifton = {
    address: "267 Southwell Blvd, Tifton, GA 31794",
    latitude: 31.417032,
    longitude: -83.498785
};
var nlv = {
    address: "4020 East Lone Mountain Road #105, North Las Vegas, NV 89030",
    latitude: 36.228928,
    longitude: -115.112426
};

//get the map that was clicked
$('.map').click(function(){
    //determine which map it was that was clicked
    var map = $(this).data('map');

    if(navigator.geolocation){
        navigator.geolocation.getCurrentPosition(successFunction, errorFunction, {'enableHighAccuracy':true,'timeout':10000,'maximumAge':0});
    }
    function successFunction(position){
        var lat = position.coords.latitude;
        var lng = position.coords.longitude;
        switch(map){
            case 'pj':
                codeLatLng(lat, lng, pj['address']);
                break;
            case 'tifton':
                codeLatLng(lat, lng, tifton['address']);
                break;
            case 'nlv':
                codeLatLng(lat, lng, nlv['address']);
                break;
        }
    }
    function errorFunction(){
        alert('Oops! It looks like the Geocoder service is down at the moment. Please try again later!');
    }
});

function codeLatLng(lat, lng, loc){
    var spot = new google.maps.LatLng(lat, lng);
    geocoder.geocode({"location": spot}, function(results, status){
        if(status == google.maps.GeocoderStatus.OK){        
            if(results[1]){
                you = results[0].formatted_address;
                alert(you);
                var request = {
                    origin: you,
                    destination: loc,
                    travelMode: google.maps.TravelMode.DRIVING
                };

                directionsService.route(request, function(response, status){
                    if(status == google.maps.DirectionsStatus.OK){
                        $('.modal-title').html("Directions to "+response['routes'][0]['legs'][0]['end_address']);
                        $('.modal-body').append('<p class="text-primary"><b>Estimated Travel Time: </b>'+response["routes"][0]["legs"][0]["duration"]["text"]+'</p>');
                        $('.modal-body').append('<p class="text-primary"><b>Estimated Distance: </b>'+response["routes"][0]["legs"][0]["distance"]["text"]+'</p>');

                        for(var i = 0; i < response['routes'][0]['legs'][0]['steps'].length; i++){
                            $('.modal-body').append('<p><span class="text-info">Step '+(i+1)+':</span> '+ response["routes"][0]["legs"][0]["steps"][i]["instructions"] + '</p>');
                        }
                        $('#map-directions').modal('show');
                    }
                });
            }else{
                alert("No results found");
            }
        }else{
            alert("Geocoder failed due to: " + status);
        }
    });     
}

编辑：以下是已经发生的不同事情的摘要，

- PHONE: 
    - On wi-fi on the 13th floor of my building: Off by 2 city blocks
    - On the cell network in my building: off by two miles and in the wrong state
    - On the cell network outside: accurate anywhere
- PC: 
    - On wi-fi on the 13th floors: Accurate to the point
    - On the LAN network: off my 1.5 miles southeast

所以说到了，如何让它一直准确？

有关如何分配高度变化的任何建议？非常感谢任何和所有的帮助！