I have three scripts I have made, in my mind they represent the three things the program will have to do.
The first script constantly reads the incoming serial port, and writes all the information to a file, I do this because I am unsure of the size of the serial buffer in the deployment device and it is vital that I collect every single piece of the information from the serial port. To combine this into a singe file I read briefly on pythons threading capabilities but I have not researched what threading in terms of python is, the deployment device however is only a single core device for right now, if that matters in the terms of python threading.
The second piece of the code is used to validate and parse the file created by the first script and place it into a SQLite database.
The third file is written in python with wxPython extensions. It (not entirely complete) reads the information from the file and updates the wxPython display widgets.
While I am sure that a lot of this is inefficient it is also not really the way I wanted to do it but I have been trying to get help from python forums and well the help has been a bit non existant.
Top priority is to make sure that all of the data is collected from the serial port, then it needs to be stored in the database, for datalogging, and I would have preferred to display the data on the display at the same time as storing it in the database but I think that will create too much of a delay, with the code this way I can place the display on a timer and every 250ms I can update the display from the next information from the database.
Now that you have the information here is the question, how do I combine the parts I have to make one script. As well as will it be possible to read from a file as I write to it, like the serial collection file and the SQLite database?
Pointers to methods I should research are just as welcome as a direct answer, and I really do appreciate any and all help in advance!
Serial Scrape Code:
import serial
ser = serial.Serial('/dev/pts/7', 19200, timeout=0)
print ser.name # check which port was really used
ScratchFile = open('Data/Scratch.scr', 'a')
x = 1
while True:
SData = ser.readline()
Valid = bool(SData)
if Valid == True:
#SData = (SData + "\n")
ScratchFile.write(SData)
#print(b)
ser.close()
Validate and Store Code:
#GKPCM Database Test
#outline open database, read serial,write string, repeat
import sqlite3
db = sqlite3.connect('Data/telemetry.gkpcm')
cursor = db.cursor()
InsertQuery ="""INSERT INTO vehicletelemetry (date,time,cyclecount,rpm,speed,odometer,oiltemp,airtemp,fuellevel,enginetemp,ind1,ind2,ind3,ind4,ind5,ind6,ind7,ind8) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)"""
tablename="vehicletelemetry"
cursor.execute(""" SELECT COUNT(*) FROM sqlite_master WHERE name = ? """, (tablename, ))
QUERY = cursor.fetchone()
print bool(QUERY[0]) # True if exists
if bool(QUERY[0]) !=1:
print('not in DB')
cursor.execute('''CREATE TABLE vehicletelemetry(id INTEGER PRIMARY KEY, date INTEGER,time INTEGER, cyclecount INTEGER, rpm INTEGER, speed INTEGER, odometer INTEGER, oiltemp INTEGER, airtemp INTEGER, fuellevel INTEGER, enginetemp INTEGER, ind1 BOOL, ind2 BOOL, ind3 BOOL, ind4 BOOL, ind5 BOOL, ind6 BOOL, ind7 BOOL, ind8 BOOL)''')
cursor.execute('INSERT INTO vehicletelemetry (date,time,cyclecount,rpm,speed,odometer,oiltemp,airtemp,fuellevel,enginetemp,ind1,ind2,ind3,ind4,ind5,ind6,ind7,ind8) VALUES (031514,013030,18960,3000,22,192768,210,72,98,210,0,0,0,0,0,0,0,0)')
db.commit()
else:
print('DB Table Exists')
#openfile to read
with open('Data/Scratch.scr') as ScratchFile:
for DataLine in ScratchFile:
#Read Database for last record date
LastEntry = cursor.execute('SELECT * FROM vehicletelemetry ORDER BY id DESC LIMIT 1')
for Records in LastEntry:
LastLogDate = Records[1]
LastLogTime = Records[2]
LastLogCycles = Records[3]
DataLine1 = DataLine.strip()
DataLine2 = DataLine1.split(',')
#Check Packet for Correct Length
if len(DataLine2) - 2 != 18:
print ("Invalid Data Length")
else:
#Check Packet DataQualifiers to ensure proper package introduction and termination
if DataLine2[0] != "7887" and DataLine2[18] != "0420":
print ("Invalid Data Qulifier")
else:
#Remove Qualifiers So data can be stored
PiP = 1
DataLine3 = []
for Packet in DataLine2:
if PiP >= 1 and PiP <= 18:
DataLine3.append(DataLine2[PiP])
PiP = PiP + 1
#Compare Date Time and Cycle Count to Current Record
#print(DataLine3)
if int(DataLine2[1]) >= int(LastLogDate):
if int(DataLine2[2]) >= int(LastLogTime):
if int(DataLine2[3]) > int(LastLogCycles):
cursor.execute(InsertQuery,DataLine3)
db.commit()
print(Records,DataLine2[3],LastLogCycles,"Data Valid")
db.close()
#todo
Display Code:
import wx
import os
import wx.lib.agw.speedmeter as SM
import sys
import math
import wx.gizmos as gizmos
from wx.lib.colourdb import getColourList
import wx.lib.buttons
from math import pi, sqrt
import time
#GUI--------------------------------------------------------------------------------------------------------------------
#------------------------------------------------------------------------------------------------------------------------
#------------------------------------------------------------------------------------------------------------------------
class MyFrame(wx.Frame):
def __init__(self,parent):
wx.Frame.__init__(self,parent,-1,"test",pos=(3, 3),size=(480, 320))
SPEEDOpanel = wx.Panel(self, -1,style=wx.NO_BORDER, pos=(240, 0), size=(240, 240))
TACHpanel = wx.Panel(self, -1, pos=(0, 0), size=(240, 240))
ODOpanel = wx.Panel(self, -1, pos=(125, 200), size=(125, 30), style=wx.NO_BORDER)
AIRpanel = wx.Panel(self, -1, pos=(0, 240), size=(80, 80), style=wx.NO_BORDER)
OILpanel = wx.Panel(self, -1, pos=(120, 240), size=(80, 80), style=wx.NO_BORDER)
FUELpanel = wx.Panel(self, -1, pos=(240, 240), size=(80, 80), style=wx.NO_BORDER)
ENGpanel = wx.Panel(self, -1, pos=(360, 240), size=(80, 80), style=wx.NO_BORDER)
INDpanel1 = wx.Panel(self, -1, pos=(80, 240), size=(40, 40), style=wx.NO_BORDER)
INDpanel2 = wx.Panel(self, -1, pos=(80, 280), size=(40, 40), style=wx.NO_BORDER)
INDpanel3 = wx.Panel(self, -1, pos=(200, 240), size=(40, 40), style=wx.NO_BORDER)
INDpanel4 = wx.Panel(self, -1, pos=(200, 280), size=(40, 40), style=wx.NO_BORDER)
INDpanel5 = wx.Panel(self, -1, pos=(320, 240), size=(40, 40), style=wx.NO_BORDER)
INDpanel6 = wx.Panel(self, -1, pos=(320, 280), size=(40, 40), style=wx.NO_BORDER)
INDpanel7 = wx.Panel(self, -1, pos=(440, 240), size=(40, 40), style=wx.NO_BORDER)
INDpanel8 = wx.Panel(self, -1, pos=(440, 280), size=(40, 40), style=wx.NO_BORDER)
SPEEDOpanel.SetBackgroundColour(wx.BLACK)
TACHpanel.SetBackgroundColour(wx.BLUE)
ODOpanel.SetBackgroundColour(wx.RED)
AIRpanel.SetBackgroundColour(wx.BLUE)
OILpanel.SetBackgroundColour(wx.CYAN)
FUELpanel.SetBackgroundColour(wx.BLACK)
ENGpanel.SetBackgroundColour(wx.BLUE)
INDpanel1.SetBackgroundColour(wx.BLUE)
INDpanel2.SetBackgroundColour(wx.RED)
INDpanel3.SetBackgroundColour(wx.BLUE)
INDpanel4.SetBackgroundColour(wx.RED)
INDpanel5.SetBackgroundColour(wx.BLUE)
INDpanel6.SetBackgroundColour(wx.RED)
INDpanel7.SetBackgroundColour(wx.BLUE)
INDpanel8.SetBackgroundColour(wx.RED)
#SPEEDOMETER----------------------------------------------------------------------------------------------------------
SPEEDO = SM.SpeedMeter(SPEEDOpanel, agwStyle=SM.SM_DRAW_HAND|SM.SM_DRAW_SECTORS|SM.SM_DRAW_MIDDLE_TEXT|SM.SM_DRAW_SECONDARY_TICKS, pos=(0, 0), size=(240, 240))
# Set The Region Of Existence Of SpeedMeter
SPEEDO.SetAngleRange(-7.25, -2)
# SpeedMeter In Sectors
intervals = range(0, 260, 20)
SPEEDO.SetIntervals(intervals)
# Assign The Same Colours To All Sectors
# Usually This Is Black
colours = [wx.BLACK]*12
SPEEDO.SetIntervalColours(colours)
# Assign The Ticks
ticks = [str(interval) for interval in intervals]
SPEEDO.SetTicks(ticks)
# Set The Ticks/Tick Markers Colour
SPEEDO.SetTicksColour(wx.RED)
# We Want To Draw 5 Secondary Ticks Between The Principal Ticks
SPEEDO.SetNumberOfSecondaryTicks(10)
# Set The Font For The Ticks Markers
SPEEDO.SetTicksFont(wx.Font(7, wx.SWISS, wx.NORMAL, wx.NORMAL))
# Set The Text In The Center Of SpeedMeter
SPEEDO.SetMiddleText("MPH")
# Assign The Colour To The Center Text
SPEEDO.SetMiddleTextColour(wx.WHITE)
# Assign A Font To The Center Text
SPEEDO.SetMiddleTextFont(wx.Font(8, wx.SWISS, wx.NORMAL, wx.BOLD))
# Set The Colour For The Hand Indicator
SPEEDO.SetHandColour(wx.Colour(255, 255, 0))
# Set The Colour For The Gauge Background
SPEEDO.SetSpeedBackground(wx.BLACK)
# Do Not Draw The External (CONTAINER) Arc
SPEEDO.DrawExternalArc(False)
SPEEDO.SetSpeedValue(0)
#TACHOMETER----------------------------------------------------------------------------------------------------------
TACH = SM.SpeedMeter(TACHpanel, agwStyle=SM.SM_DRAW_HAND|SM.SM_DRAW_PARTIAL_SECTORS|SM.SM_DRAW_MIDDLE_TEXT|SM.SM_DRAW_SECONDARY_TICKS, pos=(0, 0), size=(240, 240))
# Set The Region Of Existence Of SpeedMeter
TACH.SetAngleRange(-6, -2)
# SpeedMeter In Sectors
intervals = range(0, 15, 1)
TACH.SetIntervals(intervals)
# Assign The Same Colours To All Sectors
# Usually This Is Black
colours = [wx.BLACK]*10
colours.append(wx.Colour(255, 255, 0))
colours.append(wx.Colour(255, 255, 0))
colours.append(wx.Colour(255, 255, 0))
colours.append(wx.RED)
TACH.SetIntervalColours(colours)
# Assign The Ticks
ticks = [str(interval) for interval in intervals]
TACH.SetTicks(ticks)
# Set The Ticks/Tick Markers Colour
TACH.SetTicksColour(wx.RED)
# We Want To Draw 5 Secondary Ticks Between The Principal Ticks
TACH.SetNumberOfSecondaryTicks(1)
# Set The Font For The Ticks Markers
TACH.SetTicksFont(wx.Font(7, wx.SWISS, wx.NORMAL, wx.NORMAL))
# Set The Text In The Center Of SpeedMeter
TACH.SetMiddleText("RPM")
# Assign The Colour To The Center Text
TACH.SetMiddleTextColour(wx.WHITE)
# Assign A Font To The Center Text
TACH.SetMiddleTextFont(wx.Font(8, wx.SWISS, wx.NORMAL, wx.BOLD))
# Set The Colour For The Hand Indicator
TACH.SetHandColour(wx.Colour(255, 255, 0))
# Set The Colour For The Gauge Background
TACH.SetSpeedBackground(wx.BLACK)
# Do Not Draw The External (CONTAINER) Arc
TACH.DrawExternalArc(False)
TACH.SetSpeedValue(0)
#ODOMETER--------------------------------------------------------------------------------------------------------------
DECIMAL1=wx.gizmos.LEDNumberCtrl(ODOpanel,-1, pos=wx.Point(0, 0), size=wx.Size(125, 30), style=wx.gizmos.LED_ALIGN_LEFT)
DECIMAL1.SetBackgroundColour("BLACK")
DECIMAL1.SetForegroundColour("RED")
DECIMAL1.SetValue("192768")
#AIRTEMP---------------------------------------------------------------------------------------------------------------
AIR = SM.SpeedMeter(AIRpanel, agwStyle=SM.SM_DRAW_HAND|SM.SM_DRAW_PARTIAL_SECTORS,bufferedstyle=SM.SM_BUFFERED_DC, pos=(0, 0), size=(80, 80))
# Air Temp Control
AIR.SetAngleRange(5,7.25)
intervals = range(0, 5)
AIR.SetIntervals(intervals)
colours = [wx.BLACK]*3
colours.append(wx.RED)
AIR.SetIntervalColours(colours)
ticks = ["140", "", "210", "", "280"]
AIR.SetTicks(ticks)
AIR.SetTicksColour(wx.RED)
AIR.SetHandColour(wx.Colour(255, 255, 0))
AIR.SetSpeedBackground(wx.BLACK)
#AIR.SetArcColour(wx.RED)
AIR.SetTicksFont(wx.Font(7, wx.SWISS, wx.NORMAL, wx.NORMAL))
AIR.SetSpeedValue(0)
AIR.SetDirection("Reverse")
#OILTEMP---------------------------------------------------------------------------------------------------------------
OIL = SM.SpeedMeter(OILpanel, agwStyle=SM.SM_DRAW_HAND|SM.SM_DRAW_PARTIAL_SECTORS,bufferedstyle=SM.SM_BUFFERED_DC, pos=(0, 0), size=(80, 80))
# Air Temp Control
OIL.SetAngleRange(5,7.25)
intervals = range(0, 5)
OIL.SetIntervals(intervals)
colours = [wx.BLACK]*3
colours.append(wx.RED)
OIL.SetIntervalColours(colours)
ticks = ["140", "", "210", "", "280"]
OIL.SetTicks(ticks)
OIL.SetTicksColour(wx.RED)
OIL.SetHandColour(wx.Colour(255, 255, 0))
OIL.SetSpeedBackground(wx.BLACK)
#OIL.SetArcColour(wx.RED)
OIL.SetTicksFont(wx.Font(7, wx.SWISS, wx.NORMAL, wx.NORMAL))
OIL.SetSpeedValue(0)
OIL.SetDirection("Reverse")
#FUELLEVEL---------------------------------------------------------------------------------------------------------------
FUEL = SM.SpeedMeter(FUELpanel, agwStyle=SM.SM_DRAW_HAND|SM.SM_DRAW_SECTORS,bufferedstyle=SM.SM_BUFFERED_DC, pos=(0, 0), size=(80, 80))
# Air Temp Control
FUEL.SetAngleRange(5,7.25)
intervals = range(0, 5)
FUEL.SetIntervals(intervals)
colours = [wx.BLACK]*4
FUEL.SetIntervalColours(colours)
ticks = ["E", "", "1/2", "", "F"]
FUEL.SetTicks(ticks)
FUEL.SetTicksColour(wx.RED)
FUEL.SetHandColour(wx.Colour(255, 255, 0))
FUEL.SetSpeedBackground(wx.BLACK)
#FUEL.SetArcColour(wx.RED)
FUEL.SetTicksFont(wx.Font(7, wx.SWISS, wx.NORMAL, wx.NORMAL))
FUEL.SetSpeedValue(0)
FUEL.SetDirection("Reverse")
#ENGTEMP---------------------------------------------------------------------------------------------------------------
ENG = SM.SpeedMeter(ENGpanel, agwStyle=SM.SM_DRAW_HAND|SM.SM_DRAW_PARTIAL_SECTORS,bufferedstyle=SM.SM_BUFFERED_DC, pos=(0, 0), size=(80, 80))
# Air Temp Control
ENG.SetAngleRange(5,7.25)
intervals = range(0, 5)
ENG.SetIntervals(intervals)
colours = [wx.BLACK]*3
colours.append(wx.RED)
ENG.SetIntervalColours(colours)
ticks = ["140", "", "210", "", "280"]
ENG.SetTicks(ticks)
ENG.SetTicksColour(wx.RED)
ENG.SetHandColour(wx.Colour(255, 255, 0))
ENG.SetSpeedBackground(wx.BLACK)
#ENG.SetArcColour(wx.RED)
ENG.SetTicksFont(wx.Font(7, wx.SWISS, wx.NORMAL, wx.NORMAL))
ENG.SetSpeedValue(0)
ENG.SetDirection("Reverse")
#INDICATORS-------------------------------------------------------------------------------------------------------------
CEL_ON = wx.Image('Images/cel_on.gif', wx.BITMAP_TYPE_ANY)
CEL_OFF = wx.Image('Images/cel_off.ico', wx.BITMAP_TYPE_ANY)
LOWFUEL_ON = wx.Image('Images/fuel_on.gif', wx.BITMAP_TYPE_ANY)
LOWFUEL_OFF = wx.Image('Images/fuel_off.ico', wx.BITMAP_TYPE_ANY)
BATTERY_ON = wx.Image('Images/battery_on.gif', wx.BITMAP_TYPE_ANY)
BATTERY_OFF = wx.Image('Images/battery_off.ico', wx.BITMAP_TYPE_ANY)
SEATBELT_ON = wx.Image('Images/seatbelt_on.gif', wx.BITMAP_TYPE_ANY)
SEATBELT_OFF = wx.Image('Images/seatbelt_off.ico', wx.BITMAP_TYPE_ANY)
UPSHIFT_ON = wx.Image('Images/upshift_on.gif', wx.BITMAP_TYPE_ANY)
UPSHIFT_OFF = wx.Image('Images/upshift_off.ico', wx.BITMAP_TYPE_ANY)
TEMP_ON = wx.Image('Images/temp_on.gif', wx.BITMAP_TYPE_ANY)
TEMP_OFF = wx.Image('Images/temp_off.ico', wx.BITMAP_TYPE_ANY)
PBRAKE_ON = wx.Image('Images/brake_on.gif', wx.BITMAP_TYPE_ANY)
PBRAKE_OFF = wx.Image('Images/brake_off.ico', wx.BITMAP_TYPE_ANY)
LIGHTS_ON = wx.Image('Images/light_on.gif', wx.BITMAP_TYPE_ANY)
LIGHTS_OFF = wx.Image('Images/light_off.ico', wx.BITMAP_TYPE_ANY)
imageBitmap = wx.StaticBitmap(INDpanel1, wx.ID_ANY, wx.BitmapFromImage(CEL_ON))
imageBitmap = wx.StaticBitmap(INDpanel2, wx.ID_ANY, wx.BitmapFromImage(LOWFUEL_ON))
imageBitmap = wx.StaticBitmap(INDpanel3, wx.ID_ANY, wx.BitmapFromImage(BATTERY_ON))
imageBitmap = wx.StaticBitmap(INDpanel4, wx.ID_ANY, wx.BitmapFromImage(SEATBELT_ON))
imageBitmap = wx.StaticBitmap(INDpanel5, wx.ID_ANY, wx.BitmapFromImage(UPSHIFT_ON))
imageBitmap = wx.StaticBitmap(INDpanel6, wx.ID_ANY, wx.BitmapFromImage(TEMP_ON))
imageBitmap = wx.StaticBitmap(INDpanel7, wx.ID_ANY, wx.BitmapFromImage(PBRAKE_ON))
imageBitmap = wx.StaticBitmap(INDpanel8, wx.ID_ANY, wx.BitmapFromImage(LIGHTS_ON))
imageBitmap = wx.StaticBitmap(INDpanel1, wx.ID_ANY, wx.BitmapFromImage(CEL_OFF))
imageBitmap = wx.StaticBitmap(INDpanel2, wx.ID_ANY, wx.BitmapFromImage(LOWFUEL_OFF))
imageBitmap = wx.StaticBitmap(INDpanel3, wx.ID_ANY, wx.BitmapFromImage(BATTERY_OFF))
imageBitmap = wx.StaticBitmap(INDpanel4, wx.ID_ANY, wx.BitmapFromImage(SEATBELT_OFF))
imageBitmap = wx.StaticBitmap(INDpanel5, wx.ID_ANY, wx.BitmapFromImage(UPSHIFT_OFF))
imageBitmap = wx.StaticBitmap(INDpanel6, wx.ID_ANY, wx.BitmapFromImage(TEMP_OFF))
imageBitmap = wx.StaticBitmap(INDpanel7, wx.ID_ANY, wx.BitmapFromImage(PBRAKE_OFF))
imageBitmap = wx.StaticBitmap(INDpanel8, wx.ID_ANY, wx.BitmapFromImage(LIGHTS_OFF))
APP=wx.App(0)
frame=MyFrame(None)
APP.SetTopWindow(frame)
frame.Show()
APP.MainLoop()
Aucun commentaire:
Enregistrer un commentaire