Changes for page AI Image Sensor Calibration
Last modified by Karry Zhuang on 2025/07/03 11:59
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edited by Karry Zhuang
on 2024/05/16 17:26
on 2024/05/16 17:26
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... ... @@ -1,1 +1,1 @@ 1 -XWiki. karry1 +XWiki.Xiaoling - Content
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... ... @@ -1,9 +2,7 @@ 1 - 2 2 **Table of Contents:** 3 3 4 4 {{toc/}} 5 5 6 - 7 7 8 8 9 9 ... ... @@ -14,22 +14,29 @@ 14 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 21 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]]. 22 22 23 23 Firmware upgrade Reference:[[Update Firmware for the AI Sensors>>http://wiki.dragino.com/xwiki/bin/view/Main/Update%20Firmware%20for%20AI%20Sensor/]]. 24 24 26 + 25 25 == 2.1 Calibrate a Water Meter == 26 26 27 27 === 2.1.1 Introduce === 28 28 31 + 29 29 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. 30 30 34 + 31 31 === 2.1.2 Fix Sensor to a Water Meter === 32 32 37 + 33 33 The assembly necessitates the use of two screws, two spacers, and this specific device. 34 34 35 35 Additionally, there are AIS Sensors available along with AUC USB TTL adapters for AIS Sensors. ... ... @@ -44,23 +44,25 @@ 44 44 45 45 [[image:image-20240428165320-4.gif]] 46 46 52 + 47 47 2. Proceed by fastening the device using the previously prepared screws and gaskets. 48 48 49 49 [[image:image-20240428165354-5.gif]] 50 50 57 + 51 51 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. 52 52 53 53 [[image:image-20240428165412-6.gif]]. 54 54 62 + 55 55 The AI Sensors and AUC USB TTL Adapter for AIS Sensors are connected and then connected to the PC. 56 56 57 57 [[image:image-20240428165634-7.gif]][[image:image-20240428165645-8.jpeg||height="332" width="443"]] 58 58 59 59 60 - 61 - 62 62 === 2.1.3 Calibration === 63 63 70 + 64 64 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. 65 65 66 66 For example, Select the corresponding serial port number, here 14. ... ... @@ -70,14 +70,18 @@ 70 70 (% 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. 71 71 ))) 72 72 73 -(% 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"]] 74 74 75 - Next,selecta Baud rateof 921600 and clickon "start". Then,click on "show full image"todisplay the camerascreen.82 +(% title="Click and drag to resize" %) 76 76 77 - (% 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. 78 78 79 - 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"]] 80 80 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 + 81 81 (% 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" %) 82 82 83 83 (% 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" %) ... ... @@ -90,8 +90,10 @@ 90 90 91 91 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. 92 92 93 -(% 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"]] 94 94 106 +(% title="Click and drag to resize" %) 107 + 95 95 Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up 96 96 97 97 The "Long dial" option is the long hand dial. ... ... @@ -133,16 +133,23 @@ 133 133 134 134 === 2.2.1 Introduce === 135 135 149 + 136 136 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. 137 137 138 -=== 2.2.2 Fix Sensor to a Power Meter(% title="Click and drag to resize" %)(%%) === 139 139 153 +=== 2.2.2 Fix Sensor to a Power Meter === 154 + 155 +(% class="wikigeneratedid" %) 156 +=== (% title="Click and drag to resize" %)(%%) === 157 + 140 140 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. 141 141 142 142 [[image:image-20240429091325-1.png||height="706" width="535"]] 143 143 162 + 144 144 === 2.2.3 Calibration === 145 145 165 + 146 146 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. 147 147 148 148 For example, Select the corresponding serial port number, here 14. ... ... @@ -152,14 +152,17 @@ 152 152 (% 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. 153 153 ))) 154 154 155 -(% 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"]] 156 156 157 - Next,selecta Baud rateof 921600 and clickon "start". Then,click on "show full image"todisplay the camerascreen.177 +(% title="Click and drag to resize" %) 158 158 179 +Next, select a Baud rate of **921600** and click on **"start"**. Then, click on **"show full image"** to display the camera screen. 180 + 159 159 (% 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"]] 160 160 161 -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. 162 162 184 +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 + 163 163 [[image:1713592384928-500.png||height="494" width="266"]][[image:image-20240420141955-4.png||height="492" width="782"]] 164 164 165 165 This power meter has only six fields, and the coordinates of the digital roulette wheel are shown in the figure. ... ... @@ -172,6 +172,7 @@ 172 172 173 173 [[image:image-20240420153316-11.png||height="569" width="755"]] 174 174 198 + 175 175 (% id="cke_bm_67462S" style="display:none" %) (%%)Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up 176 176 177 177 The "Long dial" option is the long hand dial. ... ... @@ -211,10 +211,13 @@ 211 211 212 212 === 2.3.1 Introduce === 213 213 238 + 214 214 This gas meter uses G2.5 membrane gas meter. It features eight dial numbers for measurement accuracy. 215 215 241 + 216 216 === 2.3.2 Fix Sensor to a Gas Meter === 217 217 244 + 218 218 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. 219 219 220 220 [[image:image-20240429092436-2.png||height="676" width="519"]] ... ... @@ -222,6 +222,7 @@ 222 222 223 223 === 2.3.3 Calibration === 224 224 252 + 225 225 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. 226 226 227 227 For example, Select the corresponding serial port number, here 14. ... ... @@ -285,8 +285,10 @@ 285 285 286 286 [[image:1714358288601-933.png]] 287 287 316 + 288 288 == 2.4 Digital wheel dial take point coordinate diagram == 289 289 319 + 290 290 4 numbers: 291 291 292 292 (% 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" %) ... ... @@ -313,16 +313,21 @@ 313 313 314 314 === 2.5.1 Introduce === 315 315 346 + 316 316 The pressure pointer meter of the example is 1.6MPa range 317 317 349 + 318 318 === 2.5.2 Fix Sensor to a Power Meter === 319 319 352 + 320 320 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. 321 321 322 322 [[image:image-20240516163229-1.jpeg||height="595" width="446"]] 323 323 357 + 324 324 === 2.5.3 Calibration === 325 325 360 + 326 326 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. 327 327 328 328 For example, Select the corresponding serial port number, here 14. ... ... @@ -340,7 +340,7 @@ 340 340 [[image:image-20240516163423-3.png]] 341 341 342 342 343 -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. 344 344 345 345 [[image:image-20240516163501-4.png||height="482" width="694"]] 346 346 ... ... @@ -387,16 +387,17 @@ 387 387 [[image:image-20240516164153-14.png]] 388 388 389 389 390 - 391 391 = (% title="Click and drag to resize" %)3. Get Sensor Data.(%%) = 392 392 393 - 394 394 == (% title="Click and drag to resize" %)3.1 Get Image and show in PC(%%) == 395 395 429 + 396 396 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. 397 397 398 -=== (% id="cke_bm_3839S" style="display:none" %) (%%)3.1.1 The image date are obtained by serial port === 399 399 433 +=== (% style="color:inherit; font-family:inherit; font-size:23px" %)3.1.1 The image date are obtained by serial port(%%) === 434 + 435 + 400 400 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 401 401 402 402 [[image:image-20240514161623-2.png||height="541" width="1439"]] ... ... @@ -408,6 +408,7 @@ 408 408 409 409 === 3.1.2 Combined image === 410 410 447 + 411 411 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. 412 412 413 413 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. ... ... @@ -416,27 +416,27 @@ 416 416 417 417 [[image:1714467040612-103.png||height="134" width="649"]] 418 418 419 -Click on the edit option to choose and convert. 420 420 457 +Click on the **edit** option to choose and **convert**. 458 + 421 421 [[image:1714467065723-178.png||height="349" width="762"]] 422 422 423 -Choose the Hex ASCII->Binary option and then click OK. 424 424 462 +Choose the **Hex ASCII->Binary** option and then click OK. 463 + 425 425 [[image:1714467089355-837.png||height="366" width="336"]] 426 426 427 -After the conversion is finished, click on "File" and choose "Save As". 428 428 467 +After the conversion is finished, click on **"File"** and choose **"Save As"**. 468 + 429 429 [[image:1714467112365-676.png]] 430 430 431 -Save as a.jpg file and click OK to generate a JPG file. 432 432 472 +Save as **a.jpg file** and click OK to generate a JPG file. 473 + 433 433 [[image:1714467126476-110.png]] 434 434 476 + 435 435 Open the saved JPG file to display the image transmitted by the AIS Sensor through the serial port. 436 436 437 437 [[image:1714467134950-189.png]] 438 - 439 -=== === 440 - 441 - 442 -= =