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Last modified by Karry Zhuang on 2025/07/03 11:59
From version 90.2
edited by Karry Zhuang
on 2024/04/28 16:54
Change comment: There is no comment for this version
To version 26.1
edited by Karry Zhuang
on 2024/04/20 09:57
Change comment: There is no comment for this version

Summary

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Content
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2 2  
3 3  
4 4  
5 -
6 6  **Table of Contents:**
7 7  
8 8  {{toc/}}
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11 11  
12 12  
13 13  
14 -
15 15  = 1. Overview =
16 16  
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. 
15 +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  
19 19  = 2. Calibrate Digits Readings =
20 20  
21 -
22 22  == 2.1 Calibrate a Water Meter ==
23 23  
24 24  === 2.1.1 Introduce ===
... ... @@ -27,305 +27,103 @@
27 27  
28 28  === 2.1.2 Fix Sensor to a Water Meter ===
29 29  
30 -The assembly necessitates the use of two screws, two spacers, and this specific device. Additionally, there are AIS Sensors available along with TTL adapters for AIS Sensors.
31 -
32 -The fixture below is just a demo, user might adjust it with their water meter. Here is the STEP file for the fixture as below: [[Water Meter Fixture Demo>>https://www.dropbox.com/scl/fo/p1ykgysrv8p454swsh4zj/AHCYr5pcOM0WNad4fT1sf_I?rlkey=7x964q1tuvh0ezbhgxb9b2zqg&st=wxxq87t3&dl=0]].
33 -
34 -[[image:image-20240428163842-3.png||height="425" width="609"]] [[image:image-20240428155254-1.png||height="424" width="358"]]
35 -
36 -The procedure is as follows:
37 -
38 -~1. Secure the AIS sensor onto the small board and adjust its position according to your requirements. You may use two additional screws for fixation or utilize 3M double-sided adhesive for attachment.
39 -
40 -[[image:image-20240428165320-4.gif]]
41 -
42 -2. Proceed by fastening the device using the previously prepared screws and gaskets.
43 -
44 -[[image:image-20240428165354-5.gif]]
45 -
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 -
48 -[[image:image-20240428165412-6.gif]].
49 -
50 -
51 -(% class="wikigeneratedid" %)
52 -=== ===
53 -
54 -(% id="cke_bm_19954S" style="display:none" %) (%%)The AI Sensors and AUC USB TTL Adapter for AIS Sensors are connected and then connected to the PC.
55 -
56 -
57 -The AI Sensors are fixed in the device, and then the water meter is embedded and the Angle is adjusted.
58 -
59 -
60 -[[image:image-20240428155835-2.png||height="493" width="371"]]
61 -
62 -
63 -=== 2.1.3 Calibration ===
64 -
65 -Revised sentence: Launch [[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.
66 -
67 -Choose the largest number of serial port, for example, here shows 13 and 14, then choose 14.
68 -
69 -(% class="box warningmessage" %)
70 -(((
71 -(% 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.
72 -)))
73 -
74 -(% 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" %)​
75 -
76 -Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
77 -
78 -(% 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"]](% title="Click and drag to resize" %)​
79 -
80 -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.
81 -
82 -(% 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" %)​
83 -
84 -(% 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 -
86 -This water meter has only five fields, and the coordinates of the digital roulette wheel are shown in the figure.
87 -
88 -If your device's digital scroll wheel dial does not match these five fields, you can try the other field dial coordinate dot plots in 2.4.
89 -
90 -(% aria-label="1713573839396-314.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713573839396-314.png||data-widget="image" height="198" width="649"]](% title="Click and drag to resize" %)​
91 -
92 -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.
93 -
94 -(% 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" %)​
95 -
96 -Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up
97 -
98 -The "Long dial" option is the long hand dial.
99 -
100 -The "Short dial" option is the short pointer and digital wheel dial.
101 -
102 -The "Digit wheel" option is the digital wheel dial.
103 -
104 -Now we are calibrating the digital wheel face of the water meter. Here we select "digit wheel".
105 -
106 -(% aria-label="1713576691266-408.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713576691266-408.png||data-widget="image"]](% title="Click and drag to resize" %)​
107 -
108 -1:Fill in the coordinates you just got; it's best to get a coordinate and fill in a coordinate.
109 -
110 -2: Fill in the number of number wheel on their dial,fi;
111 -
112 -3: Select the number of short Pointers (currently we don't use short Pointers, the "digit wheelu" option defaults to 0);
113 -
114 -4: Preview whether the setting of their coordinates is accurate;
115 -
116 -5: Click to write all configuration to AIS;
117 -
118 -6: Click the exit configuration interface, at this time, there will be a readout. If the Reading of "reading" is consistent with the watch face, the calibration is successful. The AIS cannot move thereafter to avoid misreading.
119 -
120 -(% aria-label="1713576930301-479.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713576930301-479.png||data-widget="image"]](% title="Click and drag to resize" %)​
121 -
122 -The effect can be previewed by clicking the "Preview correction" button as shown below.
123 -
124 -(% aria-label="1713577029535-253.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713577029535-253.png||data-widget="image" height="748" width="1069"]](% style="background:url(~"http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png~") rgba(220, 220, 220, 0.5); left:0px; top:-15px" %)[[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" %)​
125 -
126 -
127 -After the calibration process is completed, it can be observed that the obtained reading aligns consistently with the numerical value displayed on the digital wheel dial.
128 -
129 -(% aria-label="1713577072196-132.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713577072196-132.png||data-widget="image" height="751" width="1073"]]
130 -
131 -(% title="Click and drag to resize" %)​
132 -
133 -== 2.2 Calibration Power Meter ==
134 -
135 -=== 2.2.1 Introduce ===
136 -
137 -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.
138 -
139 -=== 2.2.2 Fix Sensor to a Power Meter ===
140 -
141 141  Do the following with EVB_Board
142 142  Debug Board SW12=[off on] : FT4222H SPI Slave mode
143 143  AIoT Board SW123456=[off off off off off off]
144 144  
145 -(% 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" %)​(%%) (% title="Click and drag to resize" %)​
31 +[[image:image-20240419174248-4.png||height="419" width="419"]] [[image:image-20240419174159-3.png||height="420" width="556"]]
146 146  
147 -Use a hot glue gun and several sticks to attach a triangle for stabilizing the AIS. Adjust the height of the sticks so that the AIS can clearly view the numbers on the power meter.
33 +Use a hot glue gun and several sticks to attach a triangle for stabilizing the AIS. Adjust the height of the sticks so that the AIS can clearly view the numbers on the water meter.
148 148  
149 -[[image:image-20240422092350-2.png]](% title="Click and drag to resize" %)​
35 +[[image:image-20240419173432-1.jpeg||height="757" width="757"]]
150 150  
151 151  
152 -=== 2.2.3 Calibration ===
38 +=== 2.1.3 校准 ===
153 153  
154 -Perform a power reset on the EVB board, making sure to close the ota.exe program before opening HMX_FT4222H_GUI.exe.
40 +在EVB板上执行电源复位，确保在打开HMX_FT4222H_GUI.exe之前关闭ota.exe程序。
155 155  
156 -Choose the largest number of serial port, for example, here shows 13 and 14, then choose 14.
157 -
158 158  (% class="box warningmessage" %)
159 159  (((
160 -(% 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 configuration environment. Otherwise, an error pop-up window occurs when running software.
44 +(% class="mark" %)注意：在启动软件“HMX_FT4222H_GUI.exe”之前，必须预安装VisualCppRedist_AIO_x86_x64_v42.exe配置环境。否则将导致在运行软件时出现错误弹出窗口。
161 161  )))
162 162  
163 -(% 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" %)​
47 +[[image:1713519971789-213.png]]
164 164  
165 -Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
49 +接下来，选择波特率 921600，然后单击“开始”。然后，单击“显示完整图像”以显示相机屏幕。
166 166  
167 -(% 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"]]
51 +[[image:image-20240419174908-5.png||height="491" width="406"]][[image:image-20240419175103-7.png||height="489" width="632"]]
168 168  
169 -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.
53 +单击“启用 Raw”并将 BMP 图像保存在“保存”文件夹中。此步骤对于获取表盘的坐标点是必需的。
170 170  
171 -[[image:1713592384928-500.png||height="494" width="266"]][[image:image-20240420141955-4.png||height="492" width="782"]]
55 +[[image:image-20240419175324-8.png||height="637" width="911"]]
172 172  
173 -This power meter has only six fields, and the coordinates of the digital roulette wheel are shown in the figure.
57 +[[image:image-20240419175324-9.png||height="348" width="913"]]
174 174  
175 -If your device's digital scroll wheel dial does not match these six fields, you can try the other field dial coordinate dot plots in 2.4.
59 +这款水表只有五个字段，数字轮盘的坐标点如图所示。
176 176  
177 -(% aria-label="image-20240420094632-13.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240420094632-13.png||data-widget="image" height="148" width="588"]]
61 +如果您的设备数字滚轮拨盘不符合这五个字段，您可以尝试 2.4 中的其他字段拨盘坐标点图。
178 178  
179 -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.
63 +[[image:1713573839396-314.png||height="198" width="649"]]
180 180  
181 -[[image:image-20240420153316-11.png||height="569" width="755"]]
182 182  
183 -(% id="cke_bm_67462S" style="display:none" %) (%%)Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up
66 +应使用计算机的绘图工具打开最新的 bmp 图像并提取数字滚轮表盘的坐标。如附图所示，当前表盘的每个坐标点都可以根据坐标点的格式获得。鼠标指针在图像上的 （X，Y） 位置对应于图像的左下角。
184 184  
185 -The "Long dial" option is the long hand dial.
68 +[[image:1713574859715-722.png||height="481" width="576"]]
186 186  
187 -The "Short dial" option is the short pointer and digital wheel dial.
70 +点击“HIMAX_AMR_PC_Tool”中的“ROI设置”按钮，会出现三个选项。
188 188  
189 -The "Digit wheel" option is the digital wheel dial.
72 +名为“长表盘”的选项代表长指针表盘。
190 190  
191 -Now we are calibrating the digital wheel face of the power meter. Here we select "digit wheel".
74 +名为“短拨盘”的选项是指短指针和数字滚轮拨盘。
192 192  
193 -(% aria-label="1713576691266-408.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713576691266-408.png||data-widget="image"]](% title="Click and drag to resize" %)​
76 +标有“数字滚轮”的选项表示数字滚轮拨盘。
194 194  
195 -1: Fill in the coordinates you just got; it's best to get a coordinate and fill in a coordinate.
78 +目前，我们正在校准水表的数字轮面，因此我们应该选择“数字轮”选项。
196 196  
197 -2: Fill in the number of number wheel on their dial,six;
80 +[[image:1713576691266-408.png]]
198 198  
199 -3: Select the number of short Pointers (currently we don't use short Pointers, the "digit wheelu" option defaults to 0);
82 +1：填写刚刚得到的坐标，最好得到一个坐标并填写一个坐标;
83 +2：填写自己表盘上的数字轮号;
84 +3：选择短指针的数量（目前我们不使用短指针，“数字轮”选项默认为 0）。
85 +4：预览其坐标设置是否准确;
86 +5：点击将所有配置写入AIS
87 +6：点击退出配置界面，此时会出现读数，如下图所示，如果读数与表盘一致，则校准成功。此后，AIS无法移动，以避免误读。
200 200  
201 -4: Preview whether the setting of their coordinates is accurate;
89 +[[image:1713576930301-479.png]]
202 202  
203 -5: Click to write all configuration to AIS;
91 +可以通过单击“预览校正”按钮来预览效果，如下所示。
204 204  
205 -6: Click the exit configuration interface, at this time, there will be a readout. If the Reading of "reading" is consistent with the watch face, the calibration is successful. The AIS cannot move thereafter to avoid misreading.
93 +[[image:1713577029535-253.png]]
206 206  
207 -[[image:image-20240420143939-6.png||height="408" width="886"]](% title="Click and drag to resize" %)​
208 208  
209 -The effect can be previewed by clicking the "Preview correction" button as shown below.
96 +校准过程完成后，可以观察到获得的读数与数字滚轮刻度盘上显示的数值一致。
210 210  
211 -[[image:image-20240420144154-7.png||height="534" width="880"]]
98 +[[image:1713577072196-132.png]]
212 212  
213 -After the calibration process is completed, it can be observed that the obtained reading aligns consistently with the numerical value displayed on the digital wheel dial.
100 +== 2.2 校准功率计 ==
214 214  
215 -[[image:1713595371004-125.png]]
102 +== 2.3 校准燃气表 ==
216 216  
104 +== 2.4 数字轮刻度盘取点坐标图 ==
217 217  
218 -== 2.3 Calibration Gas Meter ==
106 +4 个数字：
219 219  
220 -=== 2.3.1 Introduce ===
108 +[[image:image-20240420094632-11.png||height="134" width="410"]]
221 221  
222 -This gas meter uses G2.5 membrane gas meter. It features eight dial numbers for measurement accuracy.
110 +5 个数字：
223 223  
224 -=== 2.3.2 Fix Sensor to a Gas Meter ===
112 +[[image:image-20240420094632-12.png||height="130" width="427"]]
225 225  
226 -Do the following with EVB_Board
227 -Debug Board SW12=[off on] : FT4222H SPI Slave mode
228 -AIoT Board SW123456=[off off off off off off]
114 +6 个数字：
229 229  
230 -(% 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" %)​(%%) (% title="Click and drag to resize" %)​
116 +[[image:image-20240420094632-13.png||height="112" width="444"]]
231 231  
232 -Use a hot glue gun and several sticks to attach  for stabilizing the AIS. Adjust the height of the sticks so that the AIS can clearly view the numbers on the gas meter.
118 +7 个数字：
233 233  
234 -(% title="Click and drag to resize" %)​[[image:image-20240422092731-2.png||height="693" width="518"]]
120 +[[image:image-20240420094632-14.png||height="111" width="454"]]
235 235  
122 +8 个数字：
236 236  
237 -=== 2.3.3 Calibration ===
124 +[[image:image-20240420094632-15.png]]
238 238  
239 -Perform a power reset on the EVB board, making sure to close the ota.exe program before opening HMX_FT4222H_GUI.exe.
240 -
241 -Choose the largest number of serial port, for example, here shows 13 and 14, then choose 14.
242 -
243 -(% class="box warningmessage" %)
244 -(((
245 -(% 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 configuration environment. Otherwise, an error pop-up window occurs when running software.
246 -)))
247 -
248 -(% 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" %)​
249 -
250 -Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
251 -
252 -(% 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:1713598021017-402.png]]
253 -
254 -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.
255 -
256 -[[image:1713592384928-500.png||height="494" width="266"]][[image:1713598094208-496.png||height="494" width="790"]]
257 -
258 -This gas meter has eight fields, and the coordinates of the digital roulette wheel are shown in the figure.
259 -
260 -If your device's digital scroll wheel dial does not match these eight fields, you can try the other field dial coordinate dot plots in 2.4.
261 -
262 -(% aria-label="image-20240420094632-15.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240420094632-15.png||data-widget="image" height="113" width="542"]]
263 -
264 -(% id="cke_bm_196694S" style="display:none" %) (%%)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.
265 -
266 -[[image:image-20240420153139-10.png||height="530" width="710"]]
267 -
268 -(% id="cke_bm_67462S" style="display:none" %) (%%)Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up
269 -
270 -The "Long dial" option is the long hand dial.
271 -
272 -The "Short dial" option is the short pointer and digital wheel dial.
273 -
274 -The "Digit wheel" option is the digital wheel dial.
275 -
276 -Now we are calibrating the digital wheel face of the gas meter. Here we select "digit wheel".
277 -
278 -(% aria-label="1713576691266-408.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713576691266-408.png||data-widget="image"]]
279 -
280 -1: Fill in the coordinates you just got; it's best to get a coordinate and fill in a coordinate.
281 -
282 -2: Fill in the number of number wheel on their dial,eight;
283 -
284 -3: Select the number of short Pointers (currently we don't use short Pointers, the "digit wheelu" option defaults to 0);
285 -
286 -4: Preview whether the setting of their coordinates is accurate;
287 -
288 -5: Click to write all configuration to AIS;
289 -
290 -6: Click the exit configuration interface, at this time, there will be a readout. If the Reading of "reading" is consistent with the watch face, the calibration is successful. The AIS cannot move thereafter to avoid misreading.
291 -
292 -[[image:image-20240420154023-12.png||height="436" width="942"]](% title="Click and drag to resize" %)​
293 -
294 -The effect can be previewed by clicking the "Preview correction" button as shown below.
295 -
296 -[[image:1713598855240-454.png]]
297 -
298 -After the calibration process is completed, it can be observed that the obtained reading aligns consistently with the numerical value displayed on the digital wheel dial.
299 -
300 -
301 -== 2.4 Digital wheel dial take point coordinate diagram ==
302 -
303 -4  numbers：
304 -
305 -(% 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" %)​
306 -
307 -5 numbers：
308 -
309 -(% aria-label="image-20240420094632-12.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240420094632-12.png||data-widget="image" height="130" width="427"]](% 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 -
311 -6 numbers：
312 -
313 -(% aria-label="image-20240420094632-13.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240420094632-13.png||data-widget="image" height="112" width="444"]](% 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" %)​
314 -
315 -7 numbers：
316 -
317 -(% aria-label="image-20240420094632-14.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240420094632-14.png||data-widget="image" height="111" width="454"]](% 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" %)​
318 -
319 -8 numbers：
320 -
321 -(% 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" %)​
322 -
323 -
324 -= (% title="Click and drag to resize" %)3. Get Sensor Data.(%%) =
325 -
326 -== (% title="Click and drag to resize" %)3.1 Get Digital Reading After Calibration(%%) ==
327 -
328 -
329 -== (% title="Click and drag to resize" %)3.2 Get Image and show in PC(%%) ==
330 -
331 331  
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