Changes for page AI Image Sensor Calibration
Last modified by Karry Zhuang on 2025/07/03 11:59
From version 175.1
edited by Karry Zhuang
on 2024/05/16 16:49
on 2024/05/16 16:49
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... ... @@ -1,1 +1,1 @@ 1 -XWiki. karry1 +XWiki.Xiaoling - Content
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... ... @@ -1,32 +1,40 @@ 1 - 1 +**Table of Contents:** 2 2 3 +{{toc/}} 3 3 4 4 5 5 6 -**Table of Contents:** 7 7 8 -{{toc/}} 9 9 10 10 11 11 12 12 13 13 14 - 15 15 = 1. Overview = 16 16 15 + 17 17 AIS is a video photo recognition sensor, the sensor can be used in electricity meters, gas meters, water meters, pressure gauges and other types of meters. Accurately identify the number of the current dial or upload the picture of the current dial for comparison, which can replace people to go to the door to read the meter, and is more accurate and energy-saving than the meter. The first thing to do is to fix the AIS sensor, the end direction needs to be aligned with the object that needs to be identified, you can check whether the object all appears in the lens range through the upper computer, and then calibrate, Chapter 2 will explain the calibration method of different tables. 18 18 18 + 19 19 = 2. Calibrate Digits Readings = 20 20 21 21 22 +According to the requirements to upgrade the firmware to correct the reading, respectively:[[Digital wheel dial firmware>>url:https://www.dropbox.com/scl/fi/nxa0nw0k2qhbpcxzfsz03/Digital-table-wheel-firmware.rar?rlkey=u9wqmilfwu899fhc9i2jfcwou&st=ftsl46f5&dl=0]],[[Pointer dial firmware>>url:https://www.dropbox.com/scl/fi/y03feisk7ztq1ey6pmhqb/Pointer-dial-firmware.rar?rlkey=knlx67m1g26xukrthcum1kk23&st=5m196s89&dl=0]]. 23 + 24 +Firmware upgrade Reference:[[Update Firmware for the AI Sensors>>http://wiki.dragino.com/xwiki/bin/view/Main/Update%20Firmware%20for%20AI%20Sensor/]]. 25 + 26 + 22 22 == 2.1 Calibrate a Water Meter == 23 23 24 24 === 2.1.1 Introduce === 25 25 31 + 26 26 This water meter is designed in accordance with the Chinese standard for drinking cold water meters and hot water meters, GB/T 778.1-2007. It features five dial numbers for measurement accuracy. 27 27 34 + 28 28 === 2.1.2 Fix Sensor to a Water Meter === 29 29 37 + 30 30 The assembly necessitates the use of two screws, two spacers, and this specific device. 31 31 32 32 Additionally, there are AIS Sensors available along with AUC USB TTL adapters for AIS Sensors. ... ... @@ -41,23 +41,25 @@ 41 41 42 42 [[image:image-20240428165320-4.gif]] 43 43 52 + 44 44 2. Proceed by fastening the device using the previously prepared screws and gaskets. 45 45 46 46 [[image:image-20240428165354-5.gif]] 47 47 57 + 48 48 3. Finally, nestle the device onto your water meter, ensuring that it can be adjusted to meet your specific needs while guaranteeing that the camera is directed towards the digital wheel face. 49 49 50 50 [[image:image-20240428165412-6.gif]]. 51 51 62 + 52 52 The AI Sensors and AUC USB TTL Adapter for AIS Sensors are connected and then connected to the PC. 53 53 54 54 [[image:image-20240428165634-7.gif]][[image:image-20240428165645-8.jpeg||height="332" width="443"]] 55 55 56 56 57 - 58 - 59 59 === 2.1.3 Calibration === 60 60 70 + 61 61 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. 62 62 63 63 For example, Select the corresponding serial port number, here 14. ... ... @@ -67,14 +67,18 @@ 67 67 (% 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. 68 68 ))) 69 69 70 -(% aria-label="1713519971789-213.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713519971789-213.png||data-widget="image"]] (% title="Click and drag to resize" %)80 +(% aria-label="1713519971789-213.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713519971789-213.png||data-widget="image"]] 71 71 72 - Next,selecta Baud rateof 921600 and clickon "start". Then,click on "show full image"todisplay the camerascreen.82 +(% title="Click and drag to resize" %) 73 73 74 - (% aria-label="image-20240419174908-5.png image widget"contenteditable="false" role="region"tabindex="-1"%)[[image:image-20240419174908-5.png||data-widget="image"height="491" width="406"]](%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="Clickanddrag to move"width="15"]](% title="Click and drag toresize" %)(% aria-label="image-20240419175103-7.pngimagewidget"contenteditable="false" role="region"tabindex="-1" %)[[image:image-20240419175103-7.png||data-widget="image"height="489" width="632"]](% title="Clickand dragtoresize" %)84 +Next, select a Baud rate of **921600** and click on **"start"**. Then, click on **"show full image" **to display the camera screen. 75 75 76 - Click"enableRaw" andsaveheBMPimage inthe"Save" folder.Thisstep iscessarytoobtain therdinate points ofthewatch face.86 +(% aria-label="image-20240419174908-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240419174908-5.png||data-widget="image" height="491" width="406"]](% 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" %)(% aria-label="image-20240419175103-7.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240419175103-7.png||data-widget="image" height="489" width="632"]] 77 77 88 +(% title="Click and drag to resize" %) 89 + 90 +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. 91 + 78 78 (% aria-label="image-20240419175324-8.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240419175324-8.png||data-widget="image" height="637" width="911"]](% title="Click and drag to resize" %) 79 79 80 80 (% aria-label="image-20240419175324-9.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240419175324-9.png||data-widget="image" height="348" width="913"]](% title="Click and drag to resize" %) ... ... @@ -87,8 +87,10 @@ 87 87 88 88 The computer's drawing tool can be used to open the latest bmp image and get the coordinates of the digital wheel dial, as shown below. Based on the format of the digital wheel dial, we can obtain each coordinate point of the current use dial. The (x,y) coordinate on the image is located at the bottom left corner. 89 89 90 -(% aria-label="1713574859715-722.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713574859715-722.png||data-widget="image" height="481" width="576"]] (% title="Click and drag to resize" %)104 +(% aria-label="1713574859715-722.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713574859715-722.png||data-widget="image" height="481" width="576"]] 91 91 106 +(% title="Click and drag to resize" %) 107 + 92 92 Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up 93 93 94 94 The "Long dial" option is the long hand dial. ... ... @@ -130,16 +130,23 @@ 130 130 131 131 === 2.2.1 Introduce === 132 132 149 + 133 133 This power meter is designed in accordance with the Chinese standard for Electricity metering equipment, GB/T 17215.321-2008. It features six dial numbers for measurement accuracy. 134 134 135 -=== 2.2.2 Fix Sensor to a Power Meter(% title="Click and drag to resize" %)(%%) === 136 136 153 +=== 2.2.2 Fix Sensor to a Power Meter === 154 + 155 +(% class="wikigeneratedid" %) 156 +=== (% title="Click and drag to resize" %)(%%) === 157 + 137 137 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 digital watch wheel. 138 138 139 139 [[image:image-20240429091325-1.png||height="706" width="535"]] 140 140 162 + 141 141 === 2.2.3 Calibration === 142 142 165 + 143 143 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. 144 144 145 145 For example, Select the corresponding serial port number, here 14. ... ... @@ -149,14 +149,17 @@ 149 149 (% 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. 150 150 ))) 151 151 152 -(% aria-label="1713519971789-213.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713519971789-213.png||data-widget="image"]] (% title="Click and drag to resize" %)175 +(% aria-label="1713519971789-213.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713519971789-213.png||data-widget="image"]] 153 153 154 - Next,selecta Baud rateof 921600 and clickon "start". Then,click on "show full image"todisplay the camerascreen.177 +(% title="Click and drag to resize" %) 155 155 179 +Next, select a Baud rate of **921600** and click on **"start"**. Then, click on **"show full image"** to display the camera screen. 180 + 156 156 (% aria-label="image-20240419174908-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240419174908-5.png||data-widget="image" height="491" width="406"]][[image:image-20240420135207-3.png||height="485" width="706"]] 157 157 158 -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. 159 159 184 +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. 185 + 160 160 [[image:1713592384928-500.png||height="494" width="266"]][[image:image-20240420141955-4.png||height="492" width="782"]] 161 161 162 162 This power meter has only six fields, and the coordinates of the digital roulette wheel are shown in the figure. ... ... @@ -169,6 +169,7 @@ 169 169 170 170 [[image:image-20240420153316-11.png||height="569" width="755"]] 171 171 198 + 172 172 (% id="cke_bm_67462S" style="display:none" %) (%%)Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up 173 173 174 174 The "Long dial" option is the long hand dial. ... ... @@ -208,10 +208,13 @@ 208 208 209 209 === 2.3.1 Introduce === 210 210 238 + 211 211 This gas meter uses G2.5 membrane gas meter. It features eight dial numbers for measurement accuracy. 212 212 241 + 213 213 === 2.3.2 Fix Sensor to a Gas Meter === 214 214 244 + 215 215 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 digital watch wheel. 216 216 217 217 [[image:image-20240429092436-2.png||height="676" width="519"]] ... ... @@ -219,6 +219,7 @@ 219 219 220 220 === 2.3.3 Calibration === 221 221 252 + 222 222 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. 223 223 224 224 For example, Select the corresponding serial port number, here 14. ... ... @@ -282,8 +282,10 @@ 282 282 283 283 [[image:1714358288601-933.png]] 284 284 316 + 285 285 == 2.4 Digital wheel dial take point coordinate diagram == 286 286 319 + 287 287 4 numbers: 288 288 289 289 (% aria-label="image-20240420094632-11.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240420094632-11.png||data-widget="image" height="134" width="410"]](% 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" %) ... ... @@ -310,16 +310,21 @@ 310 310 311 311 === 2.5.1 Introduce === 312 312 346 + 313 313 The pressure pointer meter of the example is 1.6MPa range 314 314 349 + 315 315 === 2.5.2 Fix Sensor to a Power Meter === 316 316 352 + 317 317 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. 318 318 319 319 [[image:image-20240516163229-1.jpeg||height="595" width="446"]] 320 320 357 + 321 321 === 2.5.3 Calibration === 322 322 360 + 323 323 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. 324 324 325 325 For example, Select the corresponding serial port number, here 14. ... ... @@ -337,7 +337,7 @@ 337 337 [[image:image-20240516163423-3.png]] 338 338 339 339 340 -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. 378 +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. 341 341 342 342 [[image:image-20240516163501-4.png||height="482" width="694"]] 343 343 ... ... @@ -384,16 +384,17 @@ 384 384 [[image:image-20240516164153-14.png]] 385 385 386 386 387 - 388 388 = (% title="Click and drag to resize" %)3. Get Sensor Data.(%%) = 389 389 390 - 391 391 == (% title="Click and drag to resize" %)3.1 Get Image and show in PC(%%) == 392 392 429 + 393 393 To get the AIS current image on the PC, you can connect AIS to your PC with TTL to send commands through the serial port to obtain relevant data packets. 394 394 395 -=== (% id="cke_bm_3839S" style="display:none" %) (%%)3.1.1 The image date are obtained by serial port === 396 396 433 +=== (% style="color:inherit; font-family:inherit; font-size:23px" %)3.1.1 The image date are obtained by serial port(%%) === 434 + 435 + 397 397 Select the corresponding baud rate and serial port number through the serial port tool, select HEX display and HEX send, and continuously receive data from the AIS Sensor 398 398 399 399 [[image:image-20240514161623-2.png||height="541" width="1439"]] ... ... @@ -405,6 +405,7 @@ 405 405 406 406 === 3.1.2 Combined image === 407 407 447 + 408 408 Once all the data has been uploaded to the TTN platform, the subsequent step involves concatenating each packet in sequential order and saving it into a new TXT file. It is important to note that the first 8 bytes of each packet should be removed before concatenation. 409 409 410 410 When you combine all the packets, you need to convert the data inside to binary. Here the conversion is demonstrated using the [[WinHex>>http://www.x-ways.net/winhex/index-m.html]] software. ... ... @@ -413,27 +413,27 @@ 413 413 414 414 [[image:1714467040612-103.png||height="134" width="649"]] 415 415 416 -Click on the edit option to choose and convert. 417 417 457 +Click on the **edit** option to choose and **convert**. 458 + 418 418 [[image:1714467065723-178.png||height="349" width="762"]] 419 419 420 -Choose the Hex ASCII->Binary option and then click OK. 421 421 462 +Choose the **Hex ASCII->Binary** option and then click OK. 463 + 422 422 [[image:1714467089355-837.png||height="366" width="336"]] 423 423 424 -After the conversion is finished, click on "File" and choose "Save As". 425 425 467 +After the conversion is finished, click on **"File"** and choose **"Save As"**. 468 + 426 426 [[image:1714467112365-676.png]] 427 427 428 -Save as a.jpg file and click OK to generate a JPG file. 429 429 472 +Save as **a.jpg file** and click OK to generate a JPG file. 473 + 430 430 [[image:1714467126476-110.png]] 431 431 476 + 432 432 Open the saved JPG file to display the image transmitted by the AIS Sensor through the serial port. 433 433 434 434 [[image:1714467134950-189.png]] 435 - 436 -=== === 437 - 438 - 439 -= =