Question

我有一个运行在raring BBBLack ubuntu映像上的python脚本，它有完美的wiFi工作，但是使用python脚本如下所示我看到脚本运行但是xively仪表板上的Request Log没有收到任何东西？！

是否有可以更新Feed的频率限制？

或者是我的应用程序？我认为它正在运行而不是下降。

这是代码：

#!/usr/bin/env python

import os
import xively
import subprocess
import time
import datetime
import requests
import serial
import re
import string
from select import select

#OS variables and other settings for UART transfer
os.system("sudo chmod 777 -R  /sys/devices/bone_capemgr.8/slots")

os.system("sudo echo ttyO1_armhf.com > /sys/devices/bone_capemgr.8/slots")

serial = serial.Serial("/dev/ttyO1", baudrate=9600)

resp = ""
inData = ['']*14
started = False
ended = False
check_point = 0
check_point_listener = 0

# extract feed_id and api_key from environment variables
FEED_ID = "34534"
API_KEY = "blahhblahh"
DEBUG =   "DEBUG" or false
DEBUG_listener = "DEBUG" or false

# initialize api client
api = xively.XivelyAPIClient(API_KEY)

# function to return a datastream object. This either creates a new datastream,
# or returns an existing one
def get_datastream(feed):
  try:
    datastream = feed.datastreams.get("Lock_Controller")
    if DEBUG:
      print "Found existing datastream"
    return datastream
  except:
    if DEBUG:
      print "Creating new datastream"
    datastream = feed.datastreams.create("Lock_Controller", tags="ON/OFF")
    return datastream

# function to return a datastream object. This either creates a new datastream,
# or returns an existing one
def get_datastream_listener(feed):
  try:
    datastream_listener = feed.datastreams.get("load_avg")
    if DEBUG:
      print "Found existing datastream"
    return datastream_listener
  except:
    if DEBUG:
      print "Creating new datastream"
    datastream_listener = feed.datastreams.create("load_avg", tags="load_01")
    return datastream_listener


# main program entry point - runs continuously updating our datastream with the
def run():
  print "Script initiation"

  #Initializing one channel
  feed = api.feeds.get(FEED_ID)
  datastream = get_datastream(feed)
  datastream.max_value = None
  datastream.min_value = None
  #Initializing one channel
  feed_listener = api.feeds.get(FEED_ID)
  datastream_listener = get_datastream_listener(feed_listener)
  datastream_listener.max_value = None
  datastream_listener.min_value = None

  while True:
     while serial.inWaiting() > 0:
           inChar = serial.read() # Read a character
           if inChar =='<': # not sure what to put in if statement to run until end 
              global started
              started = True
              global ended
              ended = False
              index = 0
           elif inChar =='>':
              global ended
              ended = True            
           if started == True:
              inData[index] = inChar # Store it
              index = index + 1      # Increment where to write next
              #inData[index] = '\0'   # Null terminate the string     
           if ended == True: 
              global ended
              ended = False
              index = 0
              Data = inData #values of acclerometer like "545X" etc enter and stored in Data 
              print (Data) 
              values = "".join(str(v) for v in Data)    
              print (values)       
              strData = string.replace(values, "<", "")
              strData = string.replace(strData, ">", "")
              strData = string.replace(strData, " ", "")
              strData = string.replace(strData, "\0", "")
              print (strData)
              if strData[0] == 's' and strData[1] == 't':
                 print "Nishant Here"
                 strData = string.replace(strData, "st", "")
                 strData = string.replace(strData, "\0", "")
                 strData = string.replace(strData, " ", "")
                 print strData
                 if strData == '1':
                    print "This is arrived at 1"   
                    global check_point_listener              
                    datastream_listener.current_value = str(check_point_listener) + "h"
                    datastream_listener.update()
                    #serial.write("<v0" + str(check_point) + ">") #serial write value 
                    time.sleep(1)
                    datastream_listener.current_value = 0
                    datastream_listener.update()
                 elif strData == '0':
                    print "This is arrived at 0"   
                    global check_point_listener                
                    datastream_listener.current_value = str(check_point_listener) + "L"
                    datastream_listener.update()                  
                    time.sleep(1)
                    datastream_listener.current_value = 0
                    datastream_listener.update()
     if DEBUG:
               print "Updating Xively feed with value: %s"   
               global check_point
               check_point = 0 
               datastream = get_datastream(feed)
               global check_point
               check_point = datastream.current_value
               print "AAGYa: %s" % check_point
               for x in range(1,61):
                   #print x
                   checking = int(check_point)
                   if x == checking:
                       print "Got it"
                       serial.write("<ch" + str(x) + ">")
                       datastream.current_value = 0
                       datastream.update()
     if DEBUG_listener:
               print "Query stuff: %s"   
               global check_point_listener
               check_point_listener = 0 
               datastream_listener = get_datastream_listener(feed_listener)
               global check_point_listener
               check_point_listener = datastream_listener.current_value
               print "AAGYa: %s" % check_point_listener
               check_point_listener = string.replace(check_point_listener, "L", "")
               check_point_listener = string.replace(check_point_listener, "h", "")
               for x in range(1,61):
                   #print x
                   checking = int(check_point_listener)
                   if x == checking:
                       print "Got it Query"
                       serial.write("<Q" + str(x) + ">")             

run()

Answer 1

我的Raspberry pi遇到了同样的问题。

当我重新创建Feed并且不依赖它们时，问题有所改善。

在您的代码中，这意味着您必须移动：

feed = api.feeds.get(FEED_ID)
datastream = get_datastream(feed)
datastream.max_value = None
datastream.min_value = None
#Initializing one channel
feed_listener = api.feeds.get(FEED_ID)
datastream_listener = get_datastream_listener(feed_listener)
datastream_listener.max_value = None
datastream_listener.min_value = None

进入while True:循环。

希望这对你也有帮助......

数据来回悬挂Xively

1 个答案: