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5
6 **Table of Contents:**
7
8 {{toc/}}
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13
14
15 = 1. Overview =
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. 
18
19 = 2. Calibrate Digits Readings =
20
21 The AI Sensors and UART are connected and then connected to the PC.
22
23 [[image:image-20240424163117-1.png||height="520" width="450"]]
24
25 [[image:image-20240424163158-2.gif]][[image:image-20240424163213-3.jpeg||height="360" width="480"]]
26
27 == 2.1 Calibrate a Water Meter ==
28
29 === 2.1.1 Introduce ===
30
31 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.
32
33 === 2.1.2 Fix Sensor to a Water Meter ===
34
35 Do the following with EVB_Board
36 Debug Board SW12=[off on] : FT4222H SPI Slave mode
37 AIoT Board SW123456=[off off off off off off]
38
39 (% 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" %)​
40
41 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.
42
43 [[image:image-20240422092251-1.png]]
44
45
46 === 2.1.3 Calibration ===
47
48 Perform a power reset on the EVB board, making sure to close the ota.exe program before opening HMX_FT4222H_GUI.exe.
49
50 Choose the largest number of serial port, for example, here shows 13 and 14, then choose 14.
51
52 (% class="box warningmessage" %)
53 (((
54 (% 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.
55 )))
56
57 (% 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" %)​
58
59 Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
60
61 (% 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" %)​
62
63 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.
64
65 (% 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" %)​
66
67 (% 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" %)​
68
69 This water meter has only five fields, and the coordinates of the digital roulette wheel are shown in the figure.
70
71 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.
72
73 (% 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" %)​
74
75 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.
76
77 (% 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" %)​
78
79 Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up
80
81 The "Long dial" option is the long hand dial.
82
83 The "Short dial" option is the short pointer and digital wheel dial.
84
85 The "Digit wheel" option is the digital wheel dial.
86
87 Now we are calibrating the digital wheel face of the water meter. Here we select "digit wheel".
88
89 (% 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" %)​
90
91 1:Fill in the coordinates you just got; it's best to get a coordinate and fill in a coordinate.
92
93 2: Fill in the number of number wheel on their dial,fi;
94
95 3: Select the number of short Pointers (currently we don't use short Pointers, the "digit wheelu" option defaults to 0);
96
97 4: Preview whether the setting of their coordinates is accurate;
98
99 5: Click to write all configuration to AIS;
100
101 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.
102
103 (% 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" %)​
104
105 The effect can be previewed by clicking the "Preview correction" button as shown below.
106
107 (% 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" %)​
108
109
110 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.
111
112 (% aria-label="1713577072196-132.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713577072196-132.png||data-widget="image" height="751" width="1073"]]
113
114 (% title="Click and drag to resize" %)​
115
116 == 2.2 Calibration Power Meter ==
117
118 === 2.2.1 Introduce ===
119
120 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.
121
122 === 2.2.2 Fix Sensor to a Power Meter ===
123
124 Do the following with EVB_Board
125 Debug Board SW12=[off on] : FT4222H SPI Slave mode
126 AIoT Board SW123456=[off off off off off off]
127
128 (% 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" %)​
129
130 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.
131
132 [[image:image-20240422092350-2.png]](% title="Click and drag to resize" %)​
133
134
135 === 2.2.3 Calibration ===
136
137 Perform a power reset on the EVB board, making sure to close the ota.exe program before opening HMX_FT4222H_GUI.exe.
138
139 Choose the largest number of serial port, for example, here shows 13 and 14, then choose 14.
140
141 (% class="box warningmessage" %)
142 (((
143 (% 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.
144 )))
145
146 (% 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" %)​
147
148 Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
149
150 (% 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"]]
151
152 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.
153
154 [[image:1713592384928-500.png||height="494" width="266"]][[image:image-20240420141955-4.png||height="492" width="782"]]
155
156 This power meter has only six fields, and the coordinates of the digital roulette wheel are shown in the figure.
157
158 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.
159
160 (% 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"]]
161
162 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.
163
164 [[image:image-20240420153316-11.png||height="569" width="755"]]
165
166 (% id="cke_bm_67462S" style="display:none" %) (%%)Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up
167
168 The "Long dial" option is the long hand dial.
169
170 The "Short dial" option is the short pointer and digital wheel dial.
171
172 The "Digit wheel" option is the digital wheel dial.
173
174 Now we are calibrating the digital wheel face of the power meter. Here we select "digit wheel".
175
176 (% 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" %)​
177
178 1: Fill in the coordinates you just got; it's best to get a coordinate and fill in a coordinate.
179
180 2: Fill in the number of number wheel on their dial,six;
181
182 3: Select the number of short Pointers (currently we don't use short Pointers, the "digit wheelu" option defaults to 0);
183
184 4: Preview whether the setting of their coordinates is accurate;
185
186 5: Click to write all configuration to AIS;
187
188 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.
189
190 [[image:image-20240420143939-6.png||height="408" width="886"]](% title="Click and drag to resize" %)​
191
192 The effect can be previewed by clicking the "Preview correction" button as shown below.
193
194 [[image:image-20240420144154-7.png||height="534" width="880"]]
195
196 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.
197
198 [[image:1713595371004-125.png]]
199
200
201 == 2.3 Calibration Gas Meter ==
202
203 === 2.3.1 Introduce ===
204
205 This gas meter uses G2.5 membrane gas meter. It features eight dial numbers for measurement accuracy.
206
207 === 2.3.2 Fix Sensor to a Gas Meter ===
208
209 Do the following with EVB_Board
210 Debug Board SW12=[off on] : FT4222H SPI Slave mode
211 AIoT Board SW123456=[off off off off off off]
212
213 (% 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" %)​
214
215 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.
216
217 (% title="Click and drag to resize" %)​[[image:image-20240422092731-2.png||height="693" width="518"]]
218
219
220 === 2.3.3 Calibration ===
221
222 Perform a power reset on the EVB board, making sure to close the ota.exe program before opening HMX_FT4222H_GUI.exe.
223
224 Choose the largest number of serial port, for example, here shows 13 and 14, then choose 14.
225
226 (% class="box warningmessage" %)
227 (((
228 (% 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.
229 )))
230
231 (% 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" %)​
232
233 Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
234
235 (% 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]]
236
237 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.
238
239 [[image:1713592384928-500.png||height="494" width="266"]][[image:1713598094208-496.png||height="494" width="790"]]
240
241 This gas meter has eight fields, and the coordinates of the digital roulette wheel are shown in the figure.
242
243 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.
244
245 (% 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"]]
246
247 (% 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.
248
249 [[image:image-20240420153139-10.png||height="530" width="710"]]
250
251 (% id="cke_bm_67462S" style="display:none" %) (%%)Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up
252
253 The "Long dial" option is the long hand dial.
254
255 The "Short dial" option is the short pointer and digital wheel dial.
256
257 The "Digit wheel" option is the digital wheel dial.
258
259 Now we are calibrating the digital wheel face of the gas meter. Here we select "digit wheel".
260
261 (% aria-label="1713576691266-408.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713576691266-408.png||data-widget="image"]]
262
263 1: Fill in the coordinates you just got; it's best to get a coordinate and fill in a coordinate.
264
265 2: Fill in the number of number wheel on their dial,eight;
266
267 3: Select the number of short Pointers (currently we don't use short Pointers, the "digit wheelu" option defaults to 0);
268
269 4: Preview whether the setting of their coordinates is accurate;
270
271 5: Click to write all configuration to AIS;
272
273 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.
274
275 [[image:image-20240420154023-12.png||height="436" width="942"]](% title="Click and drag to resize" %)​
276
277 The effect can be previewed by clicking the "Preview correction" button as shown below.
278
279 [[image:1713598855240-454.png]]
280
281 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.
282
283
284 == 2.4 Digital wheel dial take point coordinate diagram ==
285
286 4  numbers:
287
288 (% 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" %)​
289
290 5 numbers:
291
292 (% 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" %)​
293
294 6 numbers:
295
296 (% 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" %)​
297
298 7 numbers:
299
300 (% 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" %)​
301
302 8 numbers:
303
304 (% 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" %)​
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