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    wlfg 发布的帖子

    • Value error sensor control failed 是怎么回事？ 
      import pyb
import sensor, image, time,utime
import car
from pid import PID
from pyb import UART
from code_123 import code_123
from code_132 import code_132
from code_213 import code_213
from code_231 import code_231
from code_321 import code_321
from code_312 import code_312
from Read import uart_read
from red import find_red
from blue import find_blue
from green import find_green
from Test import wave_distance_process

sensor.reset()
sensor.set_vflip(True)
sensor.set_hmirror(True)
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QQVGA)
sensor.skip_frames(10)
sensor.set_auto_whitebal(False)
clock = time.clock()
uart = UART(3, 115200)
m = [0,0,0]
while(True):
    car.run(50,50)
    img = sensor.snapshot()
    img.lens_corr(1)
    for code in img.find_qrcodes():
        uart.write(code.payload()+'\0')
        m=list(code.payload())
        if(m!=[0,0,0]):
            print(m)
            if m[0]=='1' and m[1]=='2' and m[2]=='3':
                find_red()
                wave_distance_process()
                while(wave_distance_process()>=6.0 and wave_distance_process()<=9.0):
                    find_red()
                find_green()
                while(wave_distance_process()>=6.0 and wave_distance_process()<=9.0):
                    find_green()
                find_blue()
                while(wave_distance_process()>=6.0 and wave_distance_process()<=9.0):
                    find_blue()
      发布在 OpenMV Cam
      W
      wlfg
    • RE: 大佬，这个是怎么回事？应该怎么解决？这是已经插上SD卡了，没插也是类似错误。为什么？ 
      import pyb
import sensor, image, time,utime
import car
from pid import PID
from pyb import UART
from pyb import Pin
from pyb import Timer
sensor.reset()
sensor.set_vflip(True)
sensor.set_hmirror(True)
sensor.set_pixformat(sensor.RGB565)
sensor.set_framesize(sensor.QQVGA)
sensor.skip_frames(10)
sensor.set_auto_whitebal(False)
clock = time.clock()
uart = UART(3, 115200)
thresholds = [(0, 100, 23, 127, -128, 127),
              (0, 100, -128, -20, 126, -128),
              (0, 80, 0, -128, -8, -128)]
size_threshold = 500000
x_pid = PID(p=0.5, i=1, imax=100)
h_pid = PID(p=0.05, i=0.1, imax=50)
def func():
    car.run(50,50)
def find_max(blobs):
    max_size=0
    for blob in blobs:
        if blob[2]*blob[3] > max_size:
            max_blob=blob
            max_size = blob[2]*blob[3]
    return max_blob
m = [0,0,0]
flag1 = 1
flag2 = 1
flag3 = 1
while(True):
    clock.tick()
    if(time.ticks()<=2700):
        car.run(0,0)
    elif(time.ticks()<=3500):
        car.run(100,100)
    elif(time.ticks()<=4500):
        car.run(50,-50)
    elif(time.ticks()<=7500):
        car.run(100,100)
    elif(time.ticks()<=8500):
        car.run(50,-50)
    elif(time.ticks()<=9000):
        car.run(100,100)
    else:
        car.run(0,0)
    img = sensor.snapshot()
    img.lens_corr(1)
    for code in img.find_qrcodes():
        uart.write(code.payload())
        m=list(code.payload())
        if(m!=[0,0,0]):
            print(m)
            while(flag1):
                sensor.set_auto_whitebal(False)
                img = sensor.snapshot()
                if(m[0]=='1'):
                    blobs = img.find_blobs([thresholds[0]])
                    if blobs:
                        max_blob = find_max(blobs)
                        x_error = max_blob[5]-img.width()/2
                        h_error = max_blob[2]*max_blob[3]-size_threshold
                        img.draw_rectangle(max_blob[0:4])
                        img.draw_cross(max_blob[5], max_blob[6])
                        x_output=x_pid.get_pid(x_error,1)
                        h_output=h_pid.get_pid(h_error,1)
                        car.run(-h_output-x_output,-h_output+x_output)
                        blobs = img.find_blobs([thresholds[0]])
                        k = h_error+500000
                        if(k>=16000):
                            img = sensor.snapshot()
                            tim = time.ticks()
                            while(tim+500>=time.ticks()):
                                img = sensor.snapshot()
                                car.run(50,50)
                            tim = time.ticks()
                            while(tim+2000>=time.ticks()):
                                img = sensor.snapshot()
                                car.run(0,0)
                            tim = time.ticks()
                            while(tim+1000>=time.ticks()):
                                img = sensor.snapshot()
                                car.run(-100,-100)
                            while(True):
                                img = sensor.snapshot()
                                blobs = img.find_blobs([thresholds[0]])
                                if blobs:
                                    max_blob = find_max(blobs)
                                    x_error = max_blob[5]-img.width()/2
                                    h_error = max_blob[2]*max_blob[3]-size_threshold
                                    img.draw_rectangle(max_blob[0:4])
                                    img.draw_cross(max_blob[5], max_blob[6])
                                    x_output=x_pid.get_pid(x_error,1)
                                    h_output=h_pid.get_pid(h_error,1)
                                    car.run(-h_output-x_output,-h_output+x_output)
                                    blobs = img.find_blobs([thresholds[0]])
                                    k = h_error+500000
                                    if k >= 1000:
                                        img = sensor.snapshot()
                                        tim = time.ticks()
                                        while(tim+1000>=time.ticks()):
                                            img = sensor.snapshot()
                                            car.run(50,50)
                                        tim = time.ticks()
                                        while(tim+2000>=time.ticks()):
                                            img = sensor.snapshot()
                                            car.run(0,0)
                                        tim = time.ticks()
                                        while(tim+1000>=time.ticks()):
                                            img = sensor.snapshot()
                                            car.run(-100,-100)
                                        while(True):
                                            img = sensor.snapshot()
                                            if(m[1]=='2'):
                                                blobs = img.find_blobs([thresholds[1]])
                                                if blobs:
                                                    max_blob = find_max(blobs)
                                                    x_error = max_blob[5]-img.width()/2
                                                    h_error = max_blob[2]*max_blob[3]-size_threshold
                                                    img.draw_rectangle(max_blob[0:4])
                                                    img.draw_cross(max_blob[5], max_blob[6])
                                                    x_output=x_pid.get_pid(x_error,1)
                                                    h_output=h_pid.get_pid(h_error,1)
                                                    car.run(-h_output-x_output,-h_output+x_output)
                                                    k = h_error+500000
                                                    if(k>=16000):
                                                        img = sensor.snapshot()
                                                        tim = time.ticks()
                                                        while(tim+500>=time.ticks()):
                                                            img = sensor.snapshot()
                                                            car.run(50,50)
                                                        tim = time.ticks()
                                                        while(tim+2000>=time.ticks()):
                                                            img = sensor.snapshot()
                                                            car.run(0,0)
                                                        tim = time.ticks()
                                                        while(tim+1000>=time.ticks()):
                                                            img = sensor.snapshot()
                                                            car.run(-100,-100)
                                                        while(True):
                                                            img = sensor.snapshot()
                                                            blobs = img.find_blobs([thresholds[1]])
                                                            if blobs:
                                                                max_blob = find_max(blobs)
                                                                x_error = max_blob[5]-img.width()/2
                                                                h_error = max_blob[2]*max_blob[3]-size_threshold
                                                                img.draw_rectangle(max_blob[0:4])
                                                                img.draw_cross(max_blob[5], max_blob[6])
                                                                x_output=x_pid.get_pid(x_error,1)
                                                                h_output=h_pid.get_pid(h_error,1)
                                                                car.run(-h_output-x_output,-h_output+x_output)
                                                                blobs = img.find_blobs([thresholds[1]])
                                                                k = h_error+500000
                                                                if k >= 1000:
                                                                    img = sensor.snapshot()
                                                                    tim = time.ticks()
                                                                    while(tim+1000>=time.ticks()):
                                                                        img = sensor.snapshot()
                                                                        car.run(50,50)
                                                                    tim = time.ticks()
                                                                    while(tim+2000>=time.ticks()):
                                                                        img = sensor.snapshot()
                                                                        car.run(0,0)
                                                                    tim = time.ticks()
                                                                    while(tim+1000>=time.ticks()):
                                                                        img = sensor.snapshot()
                                                                        car.run(-100,-100)
                                                                    while(True):
                                                                        if(m[2]=='3'):
                                                                            blobs = img.find_blobs([thresholds[2]])
                                                                            if blobs:
                                                                                max_blob = find_max(blobs)
                                                                                x_error = max_blob[5]-img.width()/2
                                                                                h_error = max_blob[2]*max_blob[3]-size_threshold
                                                                                img.draw_rectangle(max_blob[0:4])
                                                                                img.draw_cross(max_blob[5], max_blob[6])
                                                                                x_output=x_pid.get_pid(x_error,1)
                                                                                h_output=h_pid.get_pid(h_error,1)
                                                                                car.run(-h_output-x_output,-h_output+x_output)
                                                                                k = h_error+500000
                                                                                if(k>=16000):
                                                                                    img = sensor.snapshot()
                                                                                    tim = time.ticks()
                                                                                    while(tim+500>=time.ticks()):
                                                                                        img = sensor.snapshot()
                                                                                        car.run(50,50)
                                                                                    tim = time.ticks()
                                                                                    while(tim+2000>=time.ticks()):
                                                                                        img = sensor.snapshot()
                                                                                        car.run(0,0)
                                                                                    tim = time.ticks()
                                                                                    while(tim+1000>=time.ticks()):
                                                                                        img = sensor.snapshot()
                                                                                        car.run(-100,-100)
                                                                                    while(True):
                                                                                        img = sensor.snapshot()
                                                                                        blobs = img.find_blobs([thresholds[2]])
                                                                                        if blobs:
                                                                                            max_blob = find_max(blobs)
                                                                                            x_error = max_blob[5]-img.width()/2
                                                                                            h_error = max_blob[2]*max_blob[3]-size_threshold
                                                                                            img.draw_rectangle(max_blob[0:4])
                                                                                            img.draw_cross(max_blob[5], max_blob[6])
                                                                                            x_output=x_pid.get_pid(x_error,1)
                                                                                            h_output=h_pid.get_pid(h_error,1)
                                                                                            car.run(-h_output-x_output,-h_output+x_output)
                                                                                            blobs = img.find_blobs([thresholds[2]])
                                                                                            k = h_error+500000
                                                                                            if k >= 1000:
                                                                                                img = sensor.snapshot()
                                                                                                tim = time.ticks()
                                                                                                while(tim+1000>=time.ticks()):
                                                                                                    img = sensor.snapshot()
                                                                                                    car.run(50,50)
                                                                                                tim = time.ticks()
                                                                                                while(tim+2000>=time.ticks()):
                                                                                                    img = sensor.snapshot()
                                                                                                    car.run(0,0)
                                                                                                tim = time.ticks()
                                                                                                while(tim+1000>=time.ticks()):
                                                                                                    img = sensor.snapshot()
                                                                                                    car.run(-100,-100)
                                                                                        else:
                                                                                            car.run(50,-50)
                                                                                      
                                                                            else:
                                                                                car.run(50,-50)
                                                            else:
                                                                car.run(50,-50)
                                                          
                                                else:
                                                    car.run(50,-50)
                                            if(m[1]=='3'):
                                                blobs = img.find_blobs([thresholds[2]])
                                                if blobs:
                                                    max_blob = find_max(blobs)
                                                    x_error = max_blob[5]-img.width()/2
                                                    h_error = max_blob[2]*max_blob[3]-size_threshold
                                                    img.draw_rectangle(max_blob[0:4])
                                                    img.draw_cross(max_blob[5], max_blob[6])
                                                    x_output=x_pid.get_pid(x_error,1)
                                                    h_output=h_pid.get_pid(h_error,1)
                                                    car.run(-h_output-x_output,-h_output+x_output)
                                                    k = h_error+500000
                                                    if(k>=16000):
                                                        img = sensor.snapshot()
                                                        tim = time.ticks()
                                                        while(tim+500>=time.ticks()):
                                                            img = sensor.snapshot()
                                                            car.run(50,50)
                                                        tim = time.ticks()
                                                        while(tim+2000>=time.ticks()):
                                                            img = sensor.snapshot()
                                                            car.run(0,0)
                                                        tim = time.ticks()
                                                        while(tim+1000>=time.ticks()):
                                                            img = sensor.snapshot()
                                                            car.run(-100,-100)
                                                        while(True):
                                                            img = sensor.snapshot()
                                                            blobs = img.find_blobs([thresholds[2]])
                                                            if blobs:
                                                                max_blob = find_max(blobs)
                                                                x_error = max_blob[5]-img.width()/2
                                                                h_error = max_blob[2]*max_blob[3]-size_threshold
                                                                img.draw_rectangle(max_blob[0:4])
                                                                img.draw_cross(max_blob[5], max_blob[6])
                                                                x_output=x_pid.get_pid(x_error,1)
                                                                h_output=h_pid.get_pid(h_error,1)
                                                                car.run(-h_output-x_output,-h_output+x_output)
                                                                blobs = img.find_blobs([thresholds[2]])
                                                                k = h_error+500000
                                                                if k >= 1000:
                                                                    img = sensor.snapshot()
                                                                    tim = time.ticks()
                                                                    while(tim+1000>=time.ticks()):
                                                                        img = sensor.snapshot()
                                                                        car.run(50,50)
                                                                    tim = time.ticks()
                                                                    while(tim+2000>=time.ticks()):
                                                                        img = sensor.snapshot()
                                                                        car.run(0,0)
                                                                    tim = time.ticks()
                                                                    while(tim+1000>=time.ticks()):
                                                                        img = sensor.snapshot()
                                                                        car.run(-100,-100)
                                                                    while(True):
                                                                        if(m[2]=='2'):
                                                                            blobs = img.find_blobs([thresholds[1]])
                                                                            if blobs:
                                                                                max_blob = find_max(blobs)
                                                                                x_error = max_blob[5]-img.width()/2
                                                                                h_error = max_blob[2]*max_blob[3]-size_threshold
                                                                                img.draw_rectangle(max_blob[0:4])
                                                                                img.draw_cross(max_blob[5], max_blob[6])
                                                                                x_output=x_pid.get_pid(x_error,1)
                                                                                h_output=h_pid.get_pid(h_error,1)
                                                                                car.run(-h_output-x_output,-h_output+x_output)
                                                                                k = h_error+500000
                                                                                if(k>=16000):
                                                                                    img = sensor.snapshot()
                                                                                    tim = time.ticks()
                                                                                    while(tim+500>=time.ticks()):
                                                                                        img = sensor.snapshot()
                                                                                        car.run(50,50)
                                                                                    tim = time.ticks()
                                                                                    while(tim+2000>=time.ticks()):
                                                                                        img = sensor.snapshot()
                                                                                        car.run(0,0)
                                                                                    tim = time.ticks()
                                                                                    while(tim+1000>=time.ticks()):
                                                                                        img = sensor.snapshot()
                                                                                        car.run(-100,-100)
                                                                                    while(True):
                                                                                        img = sensor.snapshot()
                                                                                        blobs = img.find_blobs([thresholds[1]])
                                                                                        if blobs:
                                                                                            max_blob = find_max(blobs)
                                                                                            x_error = max_blob[5]-img.width()/2
                                                                                            h_error = max_blob[2]*max_blob[3]-size_threshold
                                                                                            img.draw_rectangle(max_blob[0:4])
                                                                                            img.draw_cross(max_blob[5], max_blob[6])
                                                                                            x_output=x_pid.get_pid(x_error,1)
                                                                                            h_output=h_pid.get_pid(h_error,1)
                                                                                            car.run(-h_output-x_output,-h_output+x_output)
                                                                                            blobs = img.find_blobs([thresholds[1]])
                                                                                            k = h_error+500000
                                                                                            if k >= 1000:
                                                                                                img = sensor.snapshot()
                                                                                                tim = time.ticks()
                                                                                                while(tim+1000>=time.ticks()):
                                                                                                    img = sensor.snapshot()
                                                                                                    car.run(50,50)
                                                                                                tim = time.ticks()
                                                                                                while(tim+2000>=time.ticks()):
                                                                                                    img = sensor.snapshot()
                                                                                                    car.run(0,0)
                                                                                                tim = time.ticks()
                                                                                                while(tim+1000>=time.ticks()):
                                                                                                    img = sensor.snapshot()
                                                                                                    car.run(-100,-100)
                                                                                    else:
                                                                                        car.run(50,-50)
                                                                                  
                                                                        else:
                                                                            car.run(50,-50)
                                                            else:
                                                                car.run(50,-50)
                                                          
                                                else:
                                                    car.run(50,-50)
                                    else:
                                    car.run(50,-50)
                    else:
                        car.run(50,-50)
      发布在 OpenMV Cam
      W
      wlfg
    • 大佬，这个是怎么回事？应该怎么解决？这是已经插上SD卡了，没插也是类似错误。为什么？

      0_1540130736075_a8472630-fc75-46f5-9d25-c38ac2160e36-image.png

      发布在 OpenMV Cam
      W
      wlfg
    • 为什么文件好端端的会自己损毁？

      0_1538915929080_TIM图片20181007203838.jpg

      发布在 OpenMV Cam
      W
      wlfg
    • RE: 我要怎样做才能让扫完码直接开始处理二维码信息，我现在的代码一直在读取二维码的信息。求大神？

      我对于这个while（True）死循环不是很理解，读取图像信息时是一帧一帧来的，读取二维码的过程已经是死循环了，我退出这个循环后，我接下来还需要继续处理新的图像信息，这个转变，或者说这个程序的工作改变不是很懂，openmv有这方面的教程吗？亲

      发布在 OpenMV Cam
      W
      wlfg
    • RE: 我要怎样做才能让扫完码直接开始处理二维码信息，我现在的代码一直在读取二维码的信息。求大神？

      什么意思？我不太明白，您能讲的细一点吗？麻烦啦

      发布在 OpenMV Cam
      W
      wlfg
    • 我要怎样做才能让扫完码直接开始处理二维码信息，我现在的代码一直在读取二维码的信息。求大神？ 
      while(True):
    m = [0,0,0]
    img = sensor.snapshot()
    img.lens_corr(1)
    for code in img.find_qrcodes():
        uart.write(code.payload())
        m=list(code.payload())
        if(m!=[0,0,0]):
            break
    for i in range(3):
        if(m!=[0,0,0]):
            print(m)
            if(m[0]==1):
                break
                for blob in img.find_blobs([thresholds], pixels_threshold=200, area_threshold=200, merge=True):
                    img.draw_rectangle(blob.rect())
                    img.draw_cross(blob.cx(), blob.cy())
      发布在 OpenMV Cam
      W
      wlfg
    • RE: 这个程序为什么偶尔会报错，但有时也会运行？

      0_1538273672457_TIM图片20180930101424.png

      发布在 OpenMV Cam
      W
      wlfg