Changes for page AI Image Sensor Calibration
Last modified by Karry Zhuang on 2025/07/03 11:59
From version 177.1
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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... ... @@ -1,5 +1,6 @@ 1 - 1 +**Table of Contents:** 2 2 3 +{{toc/}} 3 3 4 4 5 5 ... ... @@ -7,24 +7,33 @@ 7 7 8 8 9 9 11 + 12 + 10 10 = 1. Overview = 11 11 15 + 12 12 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. 13 13 18 + 14 14 = 2. Calibrate Digits Readings = 15 15 21 + 16 16 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]]. 17 17 18 18 Firmware upgrade Reference:[[Update Firmware for the AI Sensors>>http://wiki.dragino.com/xwiki/bin/view/Main/Update%20Firmware%20for%20AI%20Sensor/]]. 19 19 26 + 20 20 == 2.1 Calibrate a Water Meter == 21 21 22 22 === 2.1.1 Introduce === 23 23 31 + 24 24 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. 25 25 34 + 26 26 === 2.1.2 Fix Sensor to a Water Meter === 27 27 37 + 28 28 The assembly necessitates the use of two screws, two spacers, and this specific device. 29 29 30 30 Additionally, there are AIS Sensors available along with AUC USB TTL adapters for AIS Sensors. ... ... @@ -39,23 +39,25 @@ 39 39 40 40 [[image:image-20240428165320-4.gif]] 41 41 52 + 42 42 2. Proceed by fastening the device using the previously prepared screws and gaskets. 43 43 44 44 [[image:image-20240428165354-5.gif]] 45 45 57 + 46 46 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. 47 47 48 48 [[image:image-20240428165412-6.gif]]. 49 49 62 + 50 50 The AI Sensors and AUC USB TTL Adapter for AIS Sensors are connected and then connected to the PC. 51 51 52 52 [[image:image-20240428165634-7.gif]][[image:image-20240428165645-8.jpeg||height="332" width="443"]] 53 53 54 54 55 - 56 - 57 57 === 2.1.3 Calibration === 58 58 70 + 59 59 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. 60 60 61 61 For example, Select the corresponding serial port number, here 14. ... ... @@ -65,14 +65,18 @@ 65 65 (% 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. 66 66 ))) 67 67 68 -(% 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"]] 69 69 70 - Next,selecta Baud rateof 921600 and clickon "start". Then,click on "show full image"todisplay the camerascreen.82 +(% title="Click and drag to resize" %) 71 71 72 - (% 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. 73 73 74 - 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"]] 75 75 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 + 76 76 (% 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" %) 77 77 78 78 (% 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" %) ... ... @@ -85,8 +85,10 @@ 85 85 86 86 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. 87 87 88 -(% 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"]] 89 89 106 +(% title="Click and drag to resize" %) 107 + 90 90 Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up 91 91 92 92 The "Long dial" option is the long hand dial. ... ... @@ -128,16 +128,23 @@ 128 128 129 129 === 2.2.1 Introduce === 130 130 149 + 131 131 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. 132 132 133 -=== 2.2.2 Fix Sensor to a Power Meter(% title="Click and drag to resize" %)(%%) === 134 134 153 +=== 2.2.2 Fix Sensor to a Power Meter === 154 + 155 +(% class="wikigeneratedid" %) 156 +(% title="Click and drag to resize" %) 157 + 135 135 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. 136 136 137 137 [[image:image-20240429091325-1.png||height="706" width="535"]] 138 138 162 + 139 139 === 2.2.3 Calibration === 140 140 165 + 141 141 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. 142 142 143 143 For example, Select the corresponding serial port number, here 14. ... ... @@ -147,14 +147,17 @@ 147 147 (% 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. 148 148 ))) 149 149 150 -(% 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"]] 151 151 152 - Next,selecta Baud rateof 921600 and clickon "start". Then,click on "show full image"todisplay the camerascreen.177 +(% title="Click and drag to resize" %) 153 153 179 +Next, select a Baud rate of **921600** and click on **"start"**. Then, click on **"show full image"** to display the camera screen. 180 + 154 154 (% 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"]] 155 155 156 -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. 157 157 184 +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 + 158 158 [[image:1713592384928-500.png||height="494" width="266"]][[image:image-20240420141955-4.png||height="492" width="782"]] 159 159 160 160 This power meter has only six fields, and the coordinates of the digital roulette wheel are shown in the figure. ... ... @@ -167,6 +167,7 @@ 167 167 168 168 [[image:image-20240420153316-11.png||height="569" width="755"]] 169 169 198 + 170 170 (% id="cke_bm_67462S" style="display:none" %) (%%)Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up 171 171 172 172 The "Long dial" option is the long hand dial. ... ... @@ -206,10 +206,13 @@ 206 206 207 207 === 2.3.1 Introduce === 208 208 238 + 209 209 This gas meter uses G2.5 membrane gas meter. It features eight dial numbers for measurement accuracy. 210 210 241 + 211 211 === 2.3.2 Fix Sensor to a Gas Meter === 212 212 244 + 213 213 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. 214 214 215 215 [[image:image-20240429092436-2.png||height="676" width="519"]] ... ... @@ -217,6 +217,7 @@ 217 217 218 218 === 2.3.3 Calibration === 219 219 252 + 220 220 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. 221 221 222 222 For example, Select the corresponding serial port number, here 14. ... ... @@ -280,8 +280,10 @@ 280 280 281 281 [[image:1714358288601-933.png]] 282 282 316 + 283 283 == 2.4 Digital wheel dial take point coordinate diagram == 284 284 319 + 285 285 4 numbers: 286 286 287 287 (% 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" %) ... ... @@ -308,16 +308,21 @@ 308 308 309 309 === 2.5.1 Introduce === 310 310 346 + 311 311 The pressure pointer meter of the example is 1.6MPa range 312 312 349 + 313 313 === 2.5.2 Fix Sensor to a Power Meter === 314 314 352 + 315 315 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. 316 316 317 317 [[image:image-20240516163229-1.jpeg||height="595" width="446"]] 318 318 357 + 319 319 === 2.5.3 Calibration === 320 320 360 + 321 321 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. 322 322 323 323 For example, Select the corresponding serial port number, here 14. ... ... @@ -335,7 +335,7 @@ 335 335 [[image:image-20240516163423-3.png]] 336 336 337 337 338 -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. 339 339 340 340 [[image:image-20240516163501-4.png||height="482" width="694"]] 341 341 ... ... @@ -382,16 +382,17 @@ 382 382 [[image:image-20240516164153-14.png]] 383 383 384 384 385 - 386 386 = (% title="Click and drag to resize" %)3. Get Sensor Data.(%%) = 387 387 388 - 389 389 == (% title="Click and drag to resize" %)3.1 Get Image and show in PC(%%) == 390 390 429 + 391 391 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. 392 392 393 -=== (% id="cke_bm_3839S" style="display:none" %) (%%)3.1.1 The image date are obtained by serial port === 394 394 433 +=== (% style="color:inherit; font-family:inherit; font-size:23px" %)3.1.1 The image date are obtained by serial port(%%) === 434 + 435 + 395 395 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 396 396 397 397 [[image:image-20240514161623-2.png||height="541" width="1439"]] ... ... @@ -403,6 +403,7 @@ 403 403 404 404 === 3.1.2 Combined image === 405 405 447 + 406 406 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. 407 407 408 408 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. ... ... @@ -411,27 +411,27 @@ 411 411 412 412 [[image:1714467040612-103.png||height="134" width="649"]] 413 413 414 -Click on the edit option to choose and convert. 415 415 457 +Click on the **edit** option to choose and **convert**. 458 + 416 416 [[image:1714467065723-178.png||height="349" width="762"]] 417 417 418 -Choose the Hex ASCII->Binary option and then click OK. 419 419 462 +Choose the **Hex ASCII->Binary** option and then click OK. 463 + 420 420 [[image:1714467089355-837.png||height="366" width="336"]] 421 421 422 -After the conversion is finished, click on "File" and choose "Save As". 423 423 467 +After the conversion is finished, click on **"File"** and choose **"Save As"**. 468 + 424 424 [[image:1714467112365-676.png]] 425 425 426 -Save as a.jpg file and click OK to generate a JPG file. 427 427 472 +Save as **a.jpg file** and click OK to generate a JPG file. 473 + 428 428 [[image:1714467126476-110.png]] 429 429 476 + 430 430 Open the saved JPG file to display the image transmitted by the AIS Sensor through the serial port. 431 431 432 432 [[image:1714467134950-189.png]] 433 - 434 -=== === 435 - 436 - 437 -= =