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diff --git a/src/main/java/org/traccar/helper/model/PositionUtil.java b/src/main/java/org/traccar/helper/model/PositionUtil.java
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+++ b/src/main/java/org/traccar/helper/model/PositionUtil.java
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+/*
+ * Copyright 2022 Anton Tananaev (anton@traccar.org)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.helper.model;
+
+import org.traccar.model.BaseModel;
+import org.traccar.model.Device;
+import org.traccar.model.Position;
+import org.traccar.model.User;
+import org.traccar.session.cache.CacheManager;
+import org.traccar.storage.Storage;
+import org.traccar.storage.StorageException;
+import org.traccar.storage.query.Columns;
+import org.traccar.storage.query.Condition;
+import org.traccar.storage.query.Order;
+import org.traccar.storage.query.Request;
+
+import java.util.Date;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public final class PositionUtil {
+
+    private PositionUtil() {
+    }
+
+    public static boolean isLatest(CacheManager cacheManager, Position position) {
+        Position lastPosition = cacheManager.getPosition(position.getDeviceId());
+        return lastPosition == null || position.getFixTime().compareTo(lastPosition.getFixTime()) >= 0;
+    }
+
+    public static double calculateDistance(Position first, Position last, boolean useOdometer) {
+        double distance;
+        double firstOdometer = first.getDouble(Position.KEY_ODOMETER);
+        double lastOdometer = last.getDouble(Position.KEY_ODOMETER);
+
+        if (useOdometer && firstOdometer != 0.0 && lastOdometer != 0.0) {
+            distance = lastOdometer - firstOdometer;
+        } else {
+            distance = last.getDouble(Position.KEY_TOTAL_DISTANCE) - first.getDouble(Position.KEY_TOTAL_DISTANCE);
+        }
+        return distance;
+    }
+
+    public static List<Position> getPositions(
+            Storage storage, long deviceId, Date from, Date to) throws StorageException {
+        return storage.getObjects(Position.class, new Request(
+                new Columns.All(),
+                new Condition.And(
+                        new Condition.Equals("deviceId", deviceId),
+                        new Condition.Between("fixTime", "from", from, "to", to)),
+                new Order("fixTime")));
+    }
+
+    public static List<Position> getLatestPositions(Storage storage, long userId) throws StorageException {
+        var devices = storage.getObjects(Device.class, new Request(
+                new Columns.Include("id"),
+                new Condition.Permission(User.class, userId, Device.class)));
+        var deviceIds = devices.stream().map(BaseModel::getId).collect(Collectors.toUnmodifiableSet());
+
+        var positions = storage.getObjects(Position.class, new Request(
+                new Columns.All(), new Condition.LatestPositions()));
+        return positions.stream()
+                .filter(position -> deviceIds.contains(position.getDeviceId()))
+                .collect(Collectors.toList());
+    }
+
+}