hplc’s gists

hplc / lte-exam-chapter-10.php

Last active June 19, 2019 07:30

	#!/usr/bin/php
	<?php

	$terms = [
	"RRM的英文全称" => "Radio Resource Management",
	"LTE最小调度周期是多长时间" => "1ms",
	"LTE支持多种系统带宽，它们是（各带宽间用英文逗号间隔）" => "1.4MHz,3MHz,5MHz,10MHz,15MHz,20MHz",
	"RAC的英文全称" => "Radio Admission Control",
	"RBC的英文全称" => "Radio Bearer Control",
	"DRA的英文全称" => "Dynamic Resource Allocation",

hplc / lte-exam-chapter-12.php

Last active June 21, 2019 01:26

	#!/usr/bin/php
	<?php

	$terms = [
	"LTE网络规划重点场景是“五高一地”，指得是高校、高铁、高速、高架、高层和" => "地铁",
	"LTE规划的建网目标是" => "热点区域连续覆盖",
	"基站覆盖估算的目的是从覆盖的角度计算所需基站的数目，公式为规划覆盖面积除以" => "单基站的覆盖面积",
	"LTE的覆盖能力的影响因素有：发射功率、频率、多天线、RB资源、带宽及信道配置、RRM算法、子帧结构和" => "配置",
	"LTE使用高频段时，其覆盖范围变" => "小",
	"容量计算是通过计算满足一定话务需求所需要的无线资源数目，进而计算出所需要的载波配置、" => "基站数目",

hplc / lte-exam-chapter-13-14.php

Last active June 21, 2019 01:39

	#!/usr/bin/php
	<?php

	$terms = [
	"干扰发生影响的基本要素有三个：干扰源、传播途径和" => "被干扰源",
	"控制共站干扰影响的三要素是：抑制干扰源、切断干扰传播途径，提高被干扰源敏感器件的" => "抗干扰性能",
	"抑制干扰源的手段有：提高发射机的性能和" => "增加发射端滤波器",
	"切断干扰传播途径的手段有：调整频点、设置保护带宽和" => "增加隔离度",
	"提高被干扰源敏感器件的抗干扰性能的主要手段：" => "提高接收机的性能",
	"空间隔离度需求由两个因素决定：发射端发送干扰大小和" => "接收机允许接收的最小干扰",

hplc / lte-exam-final.php

Last active June 28, 2019 01:11

	#!/usr/bin/php
	<?php

	$terms = [
	"TD-LTE与WLAN系统共存的干扰隔离度要求为多少（dB）" => "87",
	"TD-LTE与WLAN系统共存的空间距离要求为水平距离多少m" => "54",
	"TD-LTE与WLAN系统共存的空间距离要求为垂直距离多少m" => "2.3",
	"LTE相对3G“少一层，多一口”中的少一层是少了哪一层" => "RNC",
	"LTE相对3G“少一层，多一口”中的多一口是多了哪个口" => "X2",
	"采用256-QAM高阶调制技术时，每个符号能代表多少位比特的信息" => "8",

hplc / check_web_servers.php

Created October 22, 2019 09:58

Check a bunch of web servers' online status.

	<!DOCTYPE html>
	<html>
	<head>
	<title>16CNetG5-2</title>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	</head>
	<body>

	<?php
	/* Contents of 16CNetG5-2.csv file like this:

hplc / exam.php

Last active November 12, 2019 23:19

PHP Script to do exam.

	#!/usr/bin/php
	<?php
	/* Contents of exam.csv file like this:
	奈奎斯特定理是哪一年提出来的？,1928
	已知无线电频率为1GHz，其波长为（单位为m）：,0.3
	已知WiFi的频率为2.4GHz，其波长为（单位为m）：,0.125
	已知WiFi的频率为5GHz，其波长为（单位为cm）：,6
	......
	*/

hplc / grab_coronavirus_infected_communities.php

Last active February 6, 2020 12:44

Get the name of coronavirus infected communities in Shenzhen and convert to JSON.

	<?php
	$url = 'http://sz.bendibao.com/news/202023/827759.htm';

	$page = file_get_contents($url);
	$page = substr($page, strpos($page, '<strong>福田区</strong>')); // Start position
	$page = substr($page, 0, strpos($page, '确诊病例曾到过我的小区，怎么办?')); // End position
	$page = preg_replace('/ /', '', $page);
	$page = str_replace('<section powered-by="xiumi.us" font-size:15px;letter-spacing:0.544px;background-color:#ffffff;text-align:center;word-wrap:break-word="" !important;"="" style="margin: 10px 0px; padding: 0px; max-width: 100%; box-sizing: border-box; color: rgb(51, 51, 51);">', '', $page);
	// echo $page;

hplc / coronavirus.html

Last active March 3, 2020 11:36

Display coronavirus infected communities of Shenzhn on Amap.

	<!doctype html>
	<html lang="en">
	<head>
	<meta charset="utf-8">
	<meta http-equiv="X-UA-Compatible" content="chrome=1">
	<meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
	<link rel="shortcut icon" href="https://www.helloit.info/sites/www.helloit.info/files/helloit_0.ico" type="image/vnd.microsoft.icon" />
	<style type="text/css">
	body,html,#container{
	height: 100%;

hplc / monitor_atd.php

Created March 30, 2020 12:36

Monitor atd service and restart it if not running.

hplc / monitor_ocserv.sh

Created April 1, 2020 08:36

Test ocserv running status in OpenWrt, and restart it if not.

Sunry hplc