public void UpdateBatteryLevel(MobileNode node)
 {
     Hub.Clients.All.updateBatteryLevel(JsonConvert.SerializeObject(node));
 }
 public void PrintArrow(MobileNode sourceNode, MobileNode destNode, string colour)
 {
     Hub.Clients.All.sendMessageBetweenTwoNodes(JsonConvert.SerializeObject(sourceNode), JsonConvert.SerializeObject(destNode), colour);
 }