LightService.php
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<?php
// +----------------------------------------------------------------------
// | bronet [ 以客户为中心 以奋斗者为本 ]
// +----------------------------------------------------------------------
// | Copyright (c) 2013-2017 http://www.bronet.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: 老猫 <bronet@126.com>
// +----------------------------------------------------------------------
namespace app\admin\service;
use think\Db;
class LightService
{
public function lightChange($id="",$status1='01',$status2='01',$u="",$c=""){
if ($id==""){
return false;
}else {
$light=Db::name('light')->where('id',$id)->find();
$client = fsockopen('114.215.223.17', 5002, $errno, $errmsg, 1);
$code=$light['addr'].'10000000306001'.$light['addr'].$status1.$status2.$this->strtoascii1($u).$this->strtoascii2($c).'00';
$crc=$this->crc16_modbus($code);
$changeCode=$code.substr($crc,2,2).substr($crc,0,2);
// var_dump($queryCode);
$data = array('uid' => $light['number'], 'percent' => "$changeCode");
// 发送数据，注意5678端口是Text协议的端口，Text协议需要在数据末尾加上换行符
fwrite($client, json_encode($data) . "\n");
// 读取推送结果
return fread($client, 8192);
}
}
function crc16_modbus($msg)
{
$data = pack('H*',$msg);
$crc = 0xFFFF;
for ($i = 0; $i < strlen($data); $i++)
{
$crc ^=ord($data[$i]);
for ($j = 8; $j !=0; $j--)
{
if (($crc & 0x0001) !=0)
{
$crc >>= 1;
$crc ^= 0xA001;
}
else $crc >>= 1;
}
}
return sprintf('%04X', $crc);
}
public function strtoascii1($str="")
{
$str = mb_convert_encoding($str, 'GB2312');
$change_after = '';
for ($i = 0; $i < strlen($str); $i=$i+2) {
$change_after .= dechex(ord($str[$i])).dechex(ord($str[$i+1]));
}
for ($i=0;strlen($change_after)<50;$i++){
$change_after=$change_after.'00';
}
return strtoupper($change_after);
}
public function strtoascii2($str="")
{
$str = mb_convert_encoding($str, 'GB2312');
// var_dump(strlen($str));
if(strlen($str)%2!=0){
$change_after = '';
for ($i = 0; $i < strlen($str); $i = $i + 1) {
$change_after .= dechex(ord($str[$i]));
// var_dump($change_after);
}
}else {
$change_after = '';
for ($i = 0; $i < strlen($str); $i = $i + 2) {
$change_after .= dechex(ord($str[$i])) . dechex(ord($str[$i + 1]));
// var_dump($change_after);
}
}
// exit();
for ($i=0;strlen($change_after)<130;$i++){
$change_after=$change_after.'00';
}
return strtoupper($change_after);
}
}