要使用Android的FusedLocationProvider每隔几秒获取一次位置，我们可以使用以下步骤来实现：

1. 在AndroidManifest.xml文件中添加位置权限

2. 在build.gradle文件中添加FusedLocationProvider依赖项

implementation 'com.google.android.gms:play-services-location:17.0.0'

3. 创建一个服务类来获取位置信息，例如LocationService.java：

import android.Manifest;
import android.app.Service;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.location.Location;
import android.os.Bundle;
import android.os.IBinder;
import android.util.Log;

import androidx.annotation.NonNull;
import androidx.core.app.ActivityCompat;
import androidx.core.content.ContextCompat;

import com.google.android.gms.location.FusedLocationProviderClient;
import com.google.android.gms.location.LocationCallback;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationResult;
import com.google.android.gms.location.LocationServices;

public class LocationService extends Service {
    private static final String TAG = "LocationService";
    private static final long UPDATE_INTERVAL = 5000; // 每隔5秒获取一次位置
    private static final long FASTEST_INTERVAL = 2000; // 最快2秒获取一次位置

    private FusedLocationProviderClient fusedLocationClient;
    private LocationCallback locationCallback;

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public void onCreate() {
        super.onCreate();
        fusedLocationClient = LocationServices.getFusedLocationProviderClient(this);
        locationCallback = new LocationCallback() {
            @Override
            public void onLocationResult(LocationResult locationResult) {
                if (locationResult == null) {
                    return;
                }
                for (Location location : locationResult.getLocations()) {
                    Log.d(TAG, "onLocationResult: " + location.getLatitude() + ", " + location.getLongitude());
                }
            }
        };
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        startLocationUpdates();
        return super.onStartCommand(intent, flags, startId);
    }

    @Override
    public void onDestroy() {
        stopLocationUpdates();
        super.onDestroy();
    }

    private void startLocationUpdates() {
        LocationRequest locationRequest = LocationRequest.create();
        locationRequest.setInterval(UPDATE_INTERVAL);
        locationRequest.setFastestInterval(FASTEST_INTERVAL);
        locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);

        if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
                == PackageManager.PERMISSION_GRANTED) {
            fusedLocationClient.requestLocationUpdates(locationRequest, locationCallback, null);
        }
    }

    private void stopLocationUpdates() {
        fusedLocationClient.removeLocationUpdates(locationCallback);
    }
}

4. 在你的Activity或Fragment中启动并停止位置服务

public class MainActivity extends AppCompatActivity {
    private static final int PERMISSION_REQUEST_CODE = 1001;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
                != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(this,
                    new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
                    PERMISSION_REQUEST_CODE);
        } else {
            startLocationService();
        }
    }

    private void startLocationService() {
        Intent intent = new Intent(this, LocationService.class);
        startService(intent);
    }

    private void stopLocationService() {
        Intent intent = new Intent(this, LocationService.class);
        stopService(intent);
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        if (requestCode == PERMISSION_REQUEST_CODE) {
            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                startLocationService();
            } else {
                // 处理未授予权限的情况
            }
        }
    }

    @Override
    protected void onDestroy() {
        stopLocationService();
        super.onDestroy();
    }
}

通过以上步骤，你可以在Android中使用FusedLocationProvider每隔几秒获取一次位置信息。请确保在使用位置服务之前获取位置权限。