我正在尝试通过两个端口(即COM5和COM7)发送图像。
以下代码最有效。代码中最重要的部分是captureAndsaveImage
方法。
问题是当我同时使用两个串口时;图像变得失真,它们感觉好像混在一起了。
我的问题:是否可以同时使用两个端口?我应该怎么做才能避免混淆?
不要介意第二个图像的黑圈,它可能是由于第二个摄像头中的某些信号损失而发生的。
public class ReadPort {
private static final char[]COMMAND = {'*', 'R', 'D', 'Y', '*'};
private static final int WIDTH = 320; //640;
private static final int HEIGHT = 240; //480;
SerialPort serialPort,serialPort2;
public int[][] rgb2 = new int[WIDTH][HEIGHT];
public static void main(String[] args) {
ReadPort reader= new ReadPort();
}
public ReadPort() {
int[][]rgb = new int[HEIGHT][WIDTH];
try {
serialPort = SerialPort.getCommPort("COM7");
serialPort.openPort();
inputStream = serialPort.getInputStream();
serialPort.setComPortParameters(1000000,
8,
SerialPort.ONE_STOP_BIT,
SerialPort.NO_PARITY);
if(serialPort.isOpen()){
System.out.println("COM5 opened");
}
serialPort2 = SerialPort.getCommPort("COM5");
serialPort2.openPort();
inputStream2 = serialPort2.getInputStream();
serialPort2.setComPortParameters(1000000,
8,
SerialPort.ONE_STOP_BIT,
SerialPort.NO_PARITY);
if(serialPort2.isOpen()){
System.out.println("COM7 opened");
}
int counter = 0;
while(true) {
captureAndsaveImage( inputStream2,counter, rgb, "COM5");
captureAndsaveImage(inputStream, counter, rgb, "COM7");
counter++;
}
} catch (Exception e) {
e.printStackTrace();
}
}
public static void captureAndsaveImage(InputStream inputStream, int counter,int[][] rgb,String name) throws IOException{
while(!isImageStart(inputStream, 0)){};
System.out.print("Found image: " + counter);
for (int y = 0; y < HEIGHT; y++) {
for (int x = 0; x < WIDTH; x++) {
int temp =read(inputStream);
rgb[y][x] = ((temp&0xFF) << 16) | ((temp&0xFF) << 8) | (temp&0xFF);
}
}
BMP bmp = new BMP();
bmp.saveBMP("c:/out/" +name+"images/"+ counter + ".bmp", rgb);
System.out.println(", Saved image:"+name+"images/"+counter+".bmp");
}
private static int read(InputStream inputStream) throws IOException {
int temp = (char) inputStream.read();
//System.out.print(temp);
if (temp == -1) {
throw new IllegalStateException("Exit");
}
return temp;
}
private static boolean isImageStart(InputStream inputStream, int index) throws IOException {
if (index < COMMAND.length) {
if (COMMAND[index] == read(inputStream)) {
return isImageStart(inputStream, ++index);
} else {
return false;
}
}
return true;
}
}
编辑:我使用了类似的调试语句
if(inputStream.available()>0){
System.out.println(inputStream.toString());}
在
captureAndsaveImage
方法中,我得到的输出像COM5 opened
COM7 opened
Found image:
0com.fazecast.jSerialComm.SerialPort$SerialPortInputStream@7f31245a
, Saved image:COM5images/0.bmp
Found image:
0com.fazecast.jSerialComm.SerialPort$SerialPortInputStream@6d6f6e28
, Saved image:COM7images/0.bmp
Found image:
1com.fazecast.jSerialComm.SerialPort$SerialPortInputStream@7f31245a
, Saved image:COM5images/1.bmp
Found image:
1com.fazecast.jSerialComm.SerialPort$SerialPortInputStream@6d6f6e28
, Saved image:COM7images/1.bmp
Found image: 2, Saved image:COM5images/2.bmp
Found image:
2com.fazecast.jSerialComm.SerialPort$SerialPortInputStream@6d6f6e28
, Saved image:COM7images/2.bmp
Found image:
3com.fazecast.jSerialComm.SerialPort$SerialPortInputStream@7f31245a
, Saved image:COM5images/3.bmp
Found image:
3com.fazecast.jSerialComm.SerialPort$SerialPortInputStream@6d6f6e28
, Saved image:COM7images/3.bmp
Found image: 4, Saved image:COM5images/4.bmp
Found image:
4com.fazecast.jSerialComm.SerialPort$SerialPortInputStream@6d6f6e28
, Saved image:COM7images/4.bmp
Found image:
5com.fazecast.jSerialComm.SerialPort$SerialPortInputStream@7f31245a
, Saved image:COM5images/5.bmp
Found image:
5com.fazecast.jSerialComm.SerialPort$SerialPortInputStream@6d6f6e28
, Saved image:COM7images/5.bmp
Found image: 6, Saved image:COM5images/6.bmp
Found image: 6, Saved image:COM7images/6.bmp
Found image:
7com.fazecast.jSerialComm.SerialPort$SerialPortInputStream@7f31245a
, Saved image:COM5images/7.bmp
Found image:
7com.fazecast.jSerialComm.SerialPort$SerialPortInputStream@6d6f6e28
, Saved image:COM7images/7.bmp
Found image: 8, Saved image:COM5images/8.bmp
Found image:
8com.fazecast.jSerialComm.SerialPort$SerialPortInputStream@6d6f6e28
, Saved image:COM7images/8.bmp
Found image:
9com.fazecast.jSerialComm.SerialPort$SerialPortInputStream@7f31245a
, Saved image:COM5images/9.bmp
我观察到的是有些线条像
Found image: 6, Saved image:COM5images/6.bmp
他们大多数是
Found image:
5com.fazecast.jSerialComm.SerialPort$SerialPortInputStream@6d6f6e28
, Saved image:COM7images/5.bmp
是什么原因?据我所知
com.fazecast.jSerialComm.SerialPort$SerialPortInputStream@6d6f6e28
这应该是inputStream的地址。但是,为什么在某些情况下它没有发生呢?(我是串行通信的初学者。)
最佳答案
欢呼!我已经解决了我的问题。即使解决方案并不完美。
我在captureAndsaveImage
方法的开头放置了一段代码,例如
while(inputStream.available()>0){
int temp=read(inputStream);
}
现在,我的图像越来越清晰。我不清楚它是如何工作的
但我希望有人能对此给出逻辑。
编辑:我观察到扭曲的图像出现在奇数帧中。因此,上面的代码仅跳过那些显示即使没有混合的帧的帧。 :/