def main():
global sensor
sensor = Sensor()
try:
sensor.connect()
except:
print("Error connecting to sensor")
raise
return
#cv.namedWindow("Threshold", cv.WINDOW_AUTOSIZE);
cv.namedWindow("Contours", cv.WINDOW_AUTOSIZE);
nfunc = np.vectorize(normalize)
images = get_next_image()
baseline_frame = images[-1]
baseline = baseline_frame['image']
width = baseline_frame['cols']
height = baseline_frame['rows']
while 1:
images = get_next_image();
frame = images[-1]
pixels = np.array(frame['image'])
pixels_zeroed = np.subtract(baseline, pixels);
min = np.amin(pixels_zeroed)
max = np.amax(pixels_zeroed)
pixels_normalized = nfunc(pixels_zeroed, min, max)
large = sp.ndimage.zoom(pixels_normalized, 10, order=1)
large = large.astype(np.uint8);
large = cv.medianBlur(large,7)
#large = cv.GaussianBlur(large,(7,7),0)
#stuff, blobs = cv.threshold(large,150,255,cv.THRESH_BINARY)
stuff, blobs = cv.threshold(large,160,255,cv.THRESH_BINARY+cv.THRESH_OTSU)
contours, hierarchy = cv.findContours(blobs, cv.RETR_EXTERNAL, cv.CHAIN_APPROX_SIMPLE)
out = np.zeros((height*10,width*10,3), np.uint8)
cv.drawContours(out,contours,-1,(255,255,0),3)
regions_found = len(contours)
contours = np.vstack(contours).squeeze()
rect = cv.minAreaRect(contours)
box = cv.cv.BoxPoints(rect)
box = np.int0(box)
cv.drawContours(out,[box],0,(0,255,255),2)
#cv.imshow("Threshold", blobs);
cv.imshow("Contours", out)
cv.waitKey(1)
x = rect[0][0]
y = rect[0][1]
angle = rect[2];
if(regions_found < 10):
send(x, y, angle)
time.sleep(0.4)
sensor.close()
print "Done. Everything cleaned up."
def sensor_data():
sensor = Sensor.connect(device)
data = Sensor.read(sensor)
payload = {
'time_local': datetime.datetime.now().isoformat(),
'pm_2_5': Sensor.to_pm_2_5(data),
'pm_10': Sensor.to_pm_10(data)
}
return jsonify(payload)
from sense_hat import SenseHat
import time
import json
from azure.iot.device import IoTHubDeviceClient, Message
import configparser
from sensor import Sensor
config = configparser.ConfigParser()
config.read('config.ini')
conn = config['iot_conn']['conn']
sensor = Sensor(conn)
sensor.connect()
sensor.setData('temperature')
i = 0
while i <= 10:
sensor.showMessage()
sensor.sendMessage()
time.sleep(10)
i += 1