CANFilter hinzugefügt

Initiales hinzufügen des CAN-Filters, eingehende CAN-Kommunikation
getestet, Mittelwertberechung nach n eingegangen Nachrichten, Nachrichten
und Signale definiert

scr/CANFilter.py

@@ -0,0 +1,88 @@
+'''
+Created on 13.11.2013
+
+@author: Philipp Rauch
+@version: 0.01
+'''
+
+from CanMessage import CanMessage
+from CanSignal import CanSignal
+from PCan import PcanAdapter
+import time
+import sys
+import MySQLdb
+
+debug = False
+
+pcan = PcanAdapter(PcanAdapter.Baudrate['250k'])
+pcan.initialize()
+
+dc_battery  = CanMessage(0x3A4, 8, 50, 'dc_battery')
+dc_grid     = CanMessage(0x3A5, 8, 50, 'dc_grid')
+dc_pv       = CanMessage(0x3A6, 8, 50, 'dc_pv')
+dc_charging = CanMessage(0x3A7, 8, 50, 'dc_charging')
+
+pcan.addMessage(dc_battery)
+pcan.addMessage(dc_grid)
+pcan.addMessage(dc_pv)
+pcan.addMessage(dc_charging)
+
+current = CanSignal(0, 16, 0, 0.001, 0, 'current')
+voltage = CanSignal(16, 16, 0, 0.01, 0, 'voltage')
+capacity = CanSignal(32, 11, 0, 0.05, 0, 'capacity')
+isMaster = CanSignal(56, 1, 0, 1, 0, 'isMaster')
+isFeed = CanSignal(57, 1, 0, 1, 0, 'isFeed')
+isCharging = CanSignal(57, 1, 0, 1, 0, 'isCharging')
+isOn = CanSignal(58, 1, 0, 1, 0, 'isOn')
+
+pcan.Messages['dc_battery'].addSignal( current )
+pcan.Messages['dc_battery'].addSignal( voltage )
+pcan.Messages['dc_battery'].addSignal( capacity )
+pcan.Messages['dc_battery'].addSignal( isMaster )
+pcan.Messages['dc_battery'].addSignal( isCharging )
+
+pcan.Messages['dc_grid'].addSignal( current )
+pcan.Messages['dc_grid'].addSignal( voltage )
+pcan.Messages['dc_grid'].addSignal( isMaster )
+pcan.Messages['dc_grid'].addSignal( isFeed )
+pcan.Messages['dc_grid'].addSignal( isOn )
+
+pcan.Messages['dc_pv'].addSignal( current )
+pcan.Messages['dc_pv'].addSignal( voltage )
+
+pcan.Messages['dc_charging'].addSignal( current )
+pcan.Messages['dc_charging'].addSignal( voltage )
+
+battery_current = []
+battery_voltage = []
+battery_capacity = []
+battery_timestamp = []
+
+def mean(l):
+    return float(sum(l))/len(l) if len(l) > 0 else 0
+
+while True:
+    receiveMessageId = pcan.receiveMessage()
+    if receiveMessageId == pcan.Messages['dc_battery'].Id:
+
+        battery_current.append(pcan.Messages['dc_battery'].Signals['current'].GetData())
+        battery_voltage.append(pcan.Messages['dc_battery'].Signals['voltage'].GetData())
+        battery_capacity.append(pcan.Messages['dc_battery'].Signals['capacity'].GetData())
+        battery_timestamp.append(pcan.Messages['dc_battery'].timestamp)
+
+        if len(battery_timestamp) == 10:
+            if debug:
+                print 'current: ', battery_current
+                print 'voltage: ', battery_voltage
+                print 'SoC: ', battery_capacity
+                print 'time: ', battery_timestamp
+            print 'current: ', mean(battery_current)
+            print 'voltage: ', mean(battery_voltage)
+            print 'SoC: ', mean(battery_capacity)
+            print 'time: ', mean(battery_timestamp)
+            del battery_current[:]
+            del battery_voltage[:]
+            del battery_capacity[:]
+            del battery_timestamp[:]
+    time.sleep(0.01)
+    

scr/rest-api.py

@@ -5,6 +5,7 @@
 Created on 24.10.2013
 
 @author: Philipp Rauch
+@version: 0.5
 '''
 from flask import Flask, jsonify, abort, make_response, request
 from time import time