自动上传APRS天气信息的python脚本

一、python脚本说明

1.python代码由ba7ib编写，转载请注明。

2.脚本可以在OpenWrt设备上运行，目前使用华为HG225D路由器运行正常。

3.脚本中拉取的温湿度、气压、风、雨、PM2.5、甲醛、空气质量、日出日落等天气数据来自和风天气。

4.运行脚本只需修改代码中的Callsign，Passcode，Key，City几个参数即可。

Key到http://www.heweather.com/注册申请，选择免费套餐。

City代码：https://where.heweather.com/index.html

二、上传python脚本

1.保存以下脚本为weather.py

2.WinSCP上传至路由器root目录

三、路由器配置

1.安装依赖环境（视不同路由器按需安装）

2.设置启动项

python2 /etc/config/weather.py &

3.设置运行时间

①putty运行：

crontab -e

②进入编辑状态，最后一行添加：

*/15 * * * * python2 -u weather.py （##15分钟运行一次）

或是在路由器计划任务手动添加：

四、Putty启动脚本

python2 weather.py &

五、附：Python 脚本

#!/usr/bin/python
import os
import json, urllib2, string
from datetime import datetime
import socket
import sys
from time import sleep
import re, ssl
ssl._create_default_https_context = ssl._create_unverified_context
Callsign = '呼号+SSID'
Passcode = '验证码'
Server = 's.aprs.cn:14580'
Protocal = 'any'
City = '填写你所在的城市CID'
Key = '填写你注册申请得到的key'
def send_aprsframe(aprs_frame):
sended = False
Aprs_Sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
while not sended:
Aprs_Sock.connect((Server.split(':')[0], int(Server.split(':')[1])))
Aprs_Sock.send('user %s pass %s vers BA7IB Scripts (Python) ' % (Callsign, Passcode) )
sReturn = Aprs_Sock.recv(4096)
if sReturn.startswith("#"):
print "Succesfully logged to APRS-IS! %s" % sReturn
Aprs_Sock.send('%s ' % aprs_frame)
sended = True
sleep(1)
Aprs_Sock.shutdown(0)
Aprs_Sock.close()
class APRSFrame:
def __init__(self):
self.source = None
self.dest = None
self.path = []
self.payload = unicode()
def export(self, encode=True):
tnc2 = "%s>%s,%s:%s" % (self.source, self.dest, ','.join(self.path), self.payload)
if len(tnc2) > 510:
tnc2 = tnc2[:510]
if encode:
tnc2 = tnc2.encode('ISO-8859-1')
return tnc2
def bc():
bcargs_weather = {
'callsign': Callsign,
'weather': 'https://free-api.heweather.com/v5/weather?lang=en&city=%s&key=%s' % (City, Key),
}
while True:
frame = get_weather_frame(**bcargs_weather)
if frame:
send_aprsframe(frame)
sleep(300)
def process_ambiguity(pos, ambiguity):
num = bytearray(pos)
for i in range(0, ambiguity):
if i > 1:
i += 1
i += 2
num[-i] = " "
return str(num)
def encode_lat(lat):
lat_dir = 'N' if lat > 0 else 'S'
lat_abs = abs(lat)
lat_deg = int(lat_abs)
lat_min = (lat_abs % 1) * 60
return "%02i%05.2f%c" % (lat_deg, lat_min, lat_dir)
def encode_lng(lng):
lng_dir = 'E' if lng > 0 else 'W'
lng_abs = abs(lng)
lng_deg = int(lng_abs)
lng_min = (lng_abs % 1) * 60
return "%03i%05.2f%c" % (lng_deg, lng_min, lng_dir)
def mkframe(callsign, payload):
frame = APRSFrame()
frame.source = callsign
frame.dest = u'APRS'
frame.path = [u'TCPIP*']
frame.payload = payload
return frame.export()
def get_weather_frame(callsign, weather):
try:
req = urllib2.Request(weather)
wea_str = urllib2.urlopen(req).read()
if wea_str == -1:
print "Sorry that I can't find the weather info of this city now, please check or retry. weather string = %s " % wea_str
sys.exit(-1)
else:
w = json.loads(wea_str, encoding='utf-8')["HeWeather5"][0]
timestamp = w['basic']['update']['utc']
enc_lat = process_ambiguity(encode_lat(string.atof(w['basic']['lat'])), 0)
enc_lng = process_ambiguity(encode_lng(string.atof(w['basic']['lon'])), 0)
wenc = "%s%s%s" % (enc_lat, '/', enc_lng)
wind = w['now'].get('wind', {})
wenc += "_%03d" % string.atoi(wind['deg'])
wenc += "/%03d" % string.atoi(wind['spd'])
wenc += "g%03d" % 0
cond = w['now']
wenc += "t%03d" % round(string.atof(cond['tmp']) / (float(5)/9) + 32)
wenc += "r%03d" % 0
wenc += "p%03d" % round(string.atof(cond['pcpn']) / 25.4)
if 'hum' in cond:
wenc += "h%02d" % string.atoi(cond['hum'])
else:
wenc += "h..."
if 'pres' in cond:
wenc += "b%04d" % round(string.atof(cond['pres']) * 10)
else:
wenc += "b..."
if 'aqi' in w:
aqi = w['aqi']['city']
wenc += ",...,...,...,000,%03d,%03d" % (string.atoi(aqi['pm10']), string.atoi(aqi['pm25']))
wenc += ",."
if 'daily_forecast' in w:
df = w['daily_forecast'][0]['astro']
ext_info = " Air:%s SunR/S:%s/%s MoonR/S:%s/%s" % (aqi['qlty'], df['sr'], df['ss'], df['mr'], df['ms'])
else:
ext_info = ""
payload = "=%s%s Info@UTC%s" % ( wenc, ext_info, timestamp)
return mkframe(callsign, payload)
except:
print "Weather decode error"
return None
bc()