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Last modified by Karry Zhuang on 2025/07/03 11:59
From version 164.1
edited by Karry Zhuang
on 2024/05/16 16:36
Change comment: Uploaded new attachment "image-20240516163622-6.png", version {1}
To version 165.1
edited by Karry Zhuang
on 2024/05/16 16:39
Change comment: Uploaded new attachment "image-20240516163910-7.png", version {1}

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302 302  
303 303  8 numbers：
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305 -(% aria-label="image-20240420094632-15.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240420094632-15.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
305 +(% aria-label="image-20240420094632-15.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240420094632-15.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
306 306  
307 +(% title="Click and drag to resize" %)​
307 307  
309 +== 2.5 Pressure Pointer Meter Calibration ==
310 +
311 +=== 2.5.1 Introduce ===
312 +
313 +The pressure pointer meter of the example is 1.6MPa range
314 +
315 +=== 2.5.2 Fix Sensor to a Power Meter​ ===
316 +
317 +You can utilize a couple of pea clips or other suitable fixtures to securely fasten the AIS sensor and ensure precise alignment of the camera with the pressure pointer meter.
318 +
319 +[[image:image-20240516163229-1.jpeg||height="595" width="446"]]
320 +
321 +=== 2.5.3 Calibration ===
322 +
323 +Open the software  [[HMX_FT4222H_GUI.exe>>https://www.dropbox.com/scl/fi/yktibns4o33oh0lqitqjl/HIMAX_AMR_PC_Tool.7z?rlkey=94d637ntx152idhw8vij39icv&st=4lsq8xf9&dl=0]]. Please ensure that the firmware upgrade software ota.exe is closed before opening HMX_FT4222H_GUI.exe.
324 +
325 +Choose the largest number of serial port, for example, Select the corresponding serial port number, here 14.
326 +
327 +(% class="box warningmessage" %)
328 +(((
329 +(% class="mark" %)Note: before you start the software (%%)HMX_FT4222H_GUI.exe(% class="mark" %). you must pre-install the [[visualcppredist_aio_x6_x64_v42.exe>>https://www.dropbox.com/scl/fi/mzqx6ld5a4zkcecntqjjg/VisualCppRedist_AIO_x86_x64_v42.rar?rlkey=9fuzodmed1fg9ulquh22h0dtr&st=ph6ozi4d&dl=0]] configuration environment. Otherwise, an error pop-up window occurs when running software.
330 +)))
331 +
332 +[[image:image-20240516163338-2.png||height="455" width="733"]]
333 +
334 +
335 +Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
336 +
337 +[[image:image-20240516163423-3.png]]
338 +
339 +
340 +Click "enable Raw" and save the BMP image in the "Save" folder. This step is necessary to obtain the coordinate points of the watch face.
341 +
342 +[[image:image-20240516163501-4.png||height="482" width="694"]]
343 +
344 +[[image:image-20240516163528-5.png||height="336" width="696"]]
345 +
346 +
347 +The computer's drawing tool can be used to open the latest bmp image and get the coordinates of the pressure pointer meter, as shown below.
348 +
349 +The coordinates of the pressure pointer table are located as shown below.
350 +
351 +1 is the start point, 2 is the center point, and 3 is the end point.
352 +
353 +The (x,y) coordinate on the image is located at the bottom left corner.
354 +
355 +[[image:image-20240516163622-6.png||height="648" width="666"]]
356 +
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361 +
308 308  = (% title="Click and drag to resize" %)3. Get Sensor Data.(%%) =
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image-20240516163910-7.png
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1 +XWiki.karry
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