diff --git a/src/Monitor.php b/src/Monitor.php
index f4366bd..20534fc 100644
--- a/src/Monitor.php
+++ b/src/Monitor.php
@@ -3,25 +3,32 @@ namespace Laysense\Monitor;
 
 use WebSocket\Client;
 
-class Detection
+class Detect
 {
     var $dest='ws://172.83.153.167:2345';
     var $nodeinfo;
-    public function getNode()
+    var $ping;
+    var $delay;
+    public function node()
     {
         $nodeinfo = $this->callWebSocet('{"msg":"getnodelist"}');
         $this->nodeinfo=$nodeinfo;
     }
+    public function getNode(){
+        if(!isset($this->nodeinfo)){
+            $this->node();
+        }
+        return $this->nodeinfo;
+    }
     public function ping($host,$count)
     {
+        if(!isset($this->nodeinfo)){
+            $this->node();
+        }
         $ping = $this->callWebSocet('{"msg":"ping","target:'.$host.'","type":"ICMP","count":'.$count.'}');
         foreach($this->nodeinfo as $node){
             $ping[$node->nodeid]['nodeinfo']=$node;
         }
-        $this->ping=$ping;
-    }
-    public function getDelay()
-    {
         $alldelay = 0;
         foreach($this->ping as $id=>$node){
             if((!isset($node['nodeinfo'])) || (!isset($node['delay'])) || $node['delay']<=10){
@@ -30,8 +37,15 @@ class Detection
                 $alldelay += $node['delay'];
             }
         }
-        $alldelay = $alldelay/count($this->ping);
-        return $alldelay;
+        $this->ping=$ping;
+        $this->delay=$alldelay/count($this->ping);
+    }
+    public function getDelay()
+    {
+        if(!isset($this->delay)){
+            $this->ping();
+        }
+        return $this->delay;
     }
     private function callWebSocet(){
         $client = new Client($this->dest);