4. 运行很卡顿，有试过加if uart.any(): uart.readchar()但是没有改善还是掉帧很严重
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    • 运行很卡顿，有试过加if uart.any(): uart.readchar()但是没有改善还是掉帧很严重

    • D
       

      import sensor, image, time, os, tf, math, uos, gc, ustruct, pyb
from pyb import UART,LED
from image import SEARCH_EX, SEARCH_DS
sensor.reset()
sensor.set_pixformat(sensor.GRAYSCALE)
sensor.set_framesize(sensor.QQVGA)
sensor.set_windowing((240,240))
sensor.skip_frames(time=2000)
sensor.set_contrast(1)
sensor.set_gainceiling(16)

led = pyb.LED(4) # Red LED = 1, Green LED = 2, Blue LED = 3, IR LEDs = 4.
'''
template1 = image.Image("/1.pgm")
template2 = image.Image("/2.pgm")
template3 = image.Image("/3.pgm")
template4 = image.Image("/4.pgm")
templates = ["/1.pgm","/2.pgm","/3.pgm","/4.pgm"]
'''
rois = [(20,20,100,150),(140,50,90,100)]
net = None
labels = None
min_confidence = 0.5
try:
	net = tf.load("trained.tflite", load_to_fb=uos.stat('trained.tflite')[6] > (gc.mem_free() - (64*1024)))
except Exception as e:
	raise Exception('Failed to load "trained.tflite", did you copy the .tflite and labels.txt file onto the mass-storage device? (' + str(e) + ')')
try:
	labels = [line.rstrip('\n') for line in open("labels.txt")]
except Exception as e:
	raise Exception('Failed to load "labels.txt", did you copy the .tflite and labels.txt file onto the mass-storage device? (' + str(e) + ')')
colors = [
	(255,   0,   0),
	(  0, 255,   0),
	(255, 255,   0),
	(  0,   0, 255),
	(255,   0, 255),
	(  0, 255, 255),
	(255, 255, 255),
]
uart = UART(3,115200)
uart.init(9600, bits=8, parity=None, stop=1)

def outuart(num):
	global uart
	data = ustruct.pack("<bbhhhhb",
				   0x2C,
				   0x12,
				   int(num),
				   int(88),
				   0x5B)
	uart.write(data)
	time.sleep_ms(1)
data = [0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]
def UartReceiveDate():
	global Find_Task
	global Target_Num
	global x
	global data
	data[0] = uart.readchar()
	data[1] = uart.readchar()
	Target_Num=int(data[0]-48)*10+int(data[1]-48)
	outuart(Target_Num)
clock = time.clock()
flag = 0
num = 0
temp_num = 0


while(True):
	clock.tick()
	img = sensor.snapshot()
	UartReceiveDate()
	
	if(num == 0):
		sensor.set_windowing(1,1,100,100)
		sensor.set_windowing(10,20,50,60)
	if(num == 1):
		sensor.set_windowing(60,40,180,180)
		sensor.set_windowing(90,40,50,60)
		
	for i, detection_list in enumerate(net.detect(img, thresholds=[(math.ceil(min_confidence * 255), 255)])):
		if (i == 0): continue
		if (len(detection_list) == 0): continue
		print(" %s " % labels[i])
		tem = labels[i]
		templatei ="/"+str(labels[i])+".pgm"
		print(templatei)
		outuart(tem)
		num = num + 1
		for d in detection_list:
			[x, y, w, h] = d.rect()
			center_x = math.floor(x + (w / 2))
			center_y = math.floor(y + (h / 2))
			print('x %d\ty %d' % (center_x, center_y))
			sensor.set_windowing(240,240)

			if(num == 1):
				temp_num=int(tem)*10
				print(temp_num)
			elif(num == 2):
				temp_num+=int(tem)
				print(temp_num)
				outuart(temp_num)
               
				
	if(num==2):
		break
		led.on()
        time.sleep_ms(150)
        led.off()
        time.sleep_ms(100)
        led.on()
        time.sleep_ms(150)
        led.off()
        time.sleep_ms(600)
				
				
'''	else:
		print(temp_num)
		temp_num = 0
if (Target_Num == temp_num):		 #发送回去
	print("ok")
	outuart("ok")
	#print(clock.fps(), "fps", end="\n\n")'''
      0

    • 第170行到116行，你加了sleep，当然帧率就慢了。

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