Wiki source code of AI Image Sensor Calibration

Version 81.1 by Karry Zhuang on 2024/04/26 15:17

version	line-number	content
3.1	1
2.1	2
	3
	4
28.1	5
60.1	6	Table of Contents:
2.1	7
60.1	8	{{toc/}}
2.1	9
	10
	11
	12
	13
60.1	14
1.1	15	= 1. Overview =
	16
27.1	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.
26.1	18
1.1	19	= 2. Calibrate Digits Readings =
	20
77.2	21	The AI Sensors and UART are connected and then connected to the PC.
58.2	22
77.3	23	[[image:image-20240424163117-1.png\|\|height="520" width="450"]]
58.2	24
77.2	25	[[image:image-20240424163158-2.gif]][[image:image-20240424163213-3.jpeg\|\|height="360" width="480"]]
58.2	26
1.1	27	== 2.1 Calibrate a Water Meter ==
	28
	29	=== 2.1.1 Introduce ===
	30
26.1	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
78.2	33	=== 2.1.2 Fix Sensor to a Water Meter(% title="Click and drag to resize" %)(%%) ===
1.1	34
78.2	35	The AI Sensors are fixed in the device, and then the water meter is embedded and the Angle is adjusted.
1.1	36
78.2	37	[[image:image-20240424163340-4.jpeg\|\|height="709" width="532"]]
1.1	38
	39
27.1	40	=== 2.1.3 Calibration ===
26.1	41
81.1	42	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.
26.1	43
58.3	44	Choose the largest number of serial port, for example, here shows 13 and 14, then choose 14.
56.5	45
26.1	46	(% class="box warningmessage" %)
	47	(((
79.2	48	(% 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.
26.1	49	)))
	50
45.3	51	(% 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" %)
26.1	52
27.1	53	Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
26.1	54
45.3	55	(% 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" %)
26.1	56
27.1	57	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.
26.1	58
45.3	59	(% 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" %)
26.1	60
45.3	61	(% 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" %)
26.1	62
27.1	63	This water meter has only five fields, and the coordinates of the digital roulette wheel are shown in the figure.
26.1	64
27.1	65	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.
26.1	66
45.3	67	(% 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" %)
26.1	68
56.3	69	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.
26.1	70
45.3	71	(% 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" %)
26.1	72
27.1	73	Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up
29.1	74
27.1	75	The "Long dial" option is the long hand dial.
29.1	76
27.1	77	The "Short dial" option is the short pointer and digital wheel dial.
29.1	78
27.1	79	The "Digit wheel" option is the digital wheel dial.
29.1	80
27.1	81	Now we are calibrating the digital wheel face of the water meter. Here we select "digit wheel".
26.1	82
45.3	83	(% 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" %)
26.1	84
29.1	85	1:Fill in the coordinates you just got; it's best to get a coordinate and fill in a coordinate.
26.1	86
45.2	87	2: Fill in the number of number wheel on their dial,fi;
26.1	88
27.1	89	3: Select the number of short Pointers (currently we don't use short Pointers, the "digit wheelu" option defaults to 0);
26.1	90
27.1	91	4: Preview whether the setting of their coordinates is accurate;
26.1	92
27.1	93	5: Click to write all configuration to AIS;
26.1	94
27.1	95	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.
26.1	96
45.3	97	(% 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" %)
26.1	98
27.1	99	The effect can be previewed by clicking the "Preview correction" button as shown below.
26.1	100
27.1	101	(% 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" %)
26.1	102
	103
27.1	104	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.
26.1	105
45.2	106	(% aria-label="1713577072196-132.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713577072196-132.png\|\|data-widget="image" height="751" width="1073"]]
26.1	107
45.2	108	(% title="Click and drag to resize" %)
	109
58.4	110	== 2.2 Calibration Power Meter ==
26.1	111
30.1	112	=== 2.2.1 Introduce ===
	113
39.2	114	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.
30.1	115
58.5	116	=== 2.2.2 Fix Sensor to a Power Meter ===
30.1	117
	118	Do the following with EVB_Board
	119	Debug Board SW12=[off on] : FT4222H SPI Slave mode
	120	AIoT Board SW123456=[off off off off off off]
	121
74.1	122	(% 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" %)
30.1	123
39.2	124	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.
30.1	125
66.1	126	[[image:image-20240422092350-2.png]](% title="Click and drag to resize" %)
30.1	127
	128
	129	=== 2.2.3 Calibration ===
	130
	131	Perform a power reset on the EVB board, making sure to close the ota.exe program before opening HMX_FT4222H_GUI.exe.
	132
58.3	133	Choose the largest number of serial port, for example, here shows 13 and 14, then choose 14.
56.5	134
30.1	135	(% class="box warningmessage" %)
	136	(((
	137	(% 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.
	138	)))
	139
45.2	140	(% 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" %)
30.1	141
	142	Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
	143
49.2	144	(% 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"]]
39.2	145
41.2	146	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.
39.2	147
41.2	148	[[image:1713592384928-500.png\|\|height="494" width="266"]][[image:image-20240420141955-4.png\|\|height="492" width="782"]]
39.2	149
41.2	150	This power meter has only six fields, and the coordinates of the digital roulette wheel are shown in the figure.
39.2	151
41.2	152	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.
39.2	153
41.2	154	(% 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"]]
39.2	155
56.3	156	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.
41.2	157
51.2	158	[[image:image-20240420153316-11.png\|\|height="569" width="755"]]
39.2	159
41.3	160	(% id="cke_bm_67462S" style="display:none" %) (%%)Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up
	161
	162	The "Long dial" option is the long hand dial.
	163
	164	The "Short dial" option is the short pointer and digital wheel dial.
	165
	166	The "Digit wheel" option is the digital wheel dial.
	167
	168	Now we are calibrating the digital wheel face of the power meter. Here we select "digit wheel".
	169
45.3	170	(% 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" %)
41.3	171
	172	1: Fill in the coordinates you just got; it's best to get a coordinate and fill in a coordinate.
	173
45.2	174	2: Fill in the number of number wheel on their dial,six;
41.3	175
	176	3: Select the number of short Pointers (currently we don't use short Pointers, the "digit wheelu" option defaults to 0);
	177
	178	4: Preview whether the setting of their coordinates is accurate;
	179
	180	5: Click to write all configuration to AIS;
	181
	182	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.
	183
45.2	184	[[image:image-20240420143939-6.png\|\|height="408" width="886"]](% title="Click and drag to resize" %)
41.3	185
	186	The effect can be previewed by clicking the "Preview correction" button as shown below.
	187
45.2	188	[[image:image-20240420144154-7.png\|\|height="534" width="880"]]
41.3	189
45.2	190	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.
41.3	191
45.2	192	[[image:1713595371004-125.png]]
41.3	193
	194
58.4	195	== 2.3 Calibration Gas Meter ==
26.1	196
47.2	197	=== 2.3.1 Introduce ===
45.4	198
47.2	199	This gas meter uses G2.5 membrane gas meter. It features eight dial numbers for measurement accuracy.
45.4	200
47.2	201	=== 2.3.2 Fix Sensor to a Gas Meter ===
45.4	202
47.2	203	Do the following with EVB_Board
	204	Debug Board SW12=[off on] : FT4222H SPI Slave mode
	205	AIoT Board SW123456=[off off off off off off]
45.4	206
74.1	207	(% 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" %)
45.4	208
56.2	209	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.
45.4	210
72.1	211	(% title="Click and drag to resize" %)[[image:image-20240422092731-2.png\|\|height="693" width="518"]]
45.4	212
	213
62.1	214	=== 2.3.3 Calibration ===
47.2	215
	216	Perform a power reset on the EVB board, making sure to close the ota.exe program before opening HMX_FT4222H_GUI.exe.
	217
58.3	218	Choose the largest number of serial port, for example, here shows 13 and 14, then choose 14.
56.5	219
47.2	220	(% class="box warningmessage" %)
	221	(((
	222	(% 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.
	223	)))
	224
	225	(% 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" %)
	226
	227	Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
	228
49.2	229	(% 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]]
47.2	230
49.2	231	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.
47.2	232
49.2	233	[[image:1713592384928-500.png\|\|height="494" width="266"]][[image:1713598094208-496.png\|\|height="494" width="790"]]
47.2	234
56.4	235	This gas meter has eight fields, and the coordinates of the digital roulette wheel are shown in the figure.
47.2	236
49.2	237	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.
47.2	238
49.2	239	(% 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"]]
47.2	240
56.3	241	(% 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.
47.2	242
50.2	243	[[image:image-20240420153139-10.png\|\|height="530" width="710"]]
49.2	244
50.2	245	(% id="cke_bm_67462S" style="display:none" %) (%%)Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up
49.2	246
50.2	247	The "Long dial" option is the long hand dial.
49.2	248
50.2	249	The "Short dial" option is the short pointer and digital wheel dial.
	250
	251	The "Digit wheel" option is the digital wheel dial.
	252
56.4	253	Now we are calibrating the digital wheel face of the gas meter. Here we select "digit wheel".
50.2	254
	255	(% aria-label="1713576691266-408.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713576691266-408.png\|\|data-widget="image"]]
	256
54.2	257	1: Fill in the coordinates you just got; it's best to get a coordinate and fill in a coordinate.
50.2	258
54.2	259	2: Fill in the number of number wheel on their dial,eight;
50.2	260
54.2	261	3: Select the number of short Pointers (currently we don't use short Pointers, the "digit wheelu" option defaults to 0);
50.2	262
54.2	263	4: Preview whether the setting of their coordinates is accurate;
	264
	265	5: Click to write all configuration to AIS;
	266
	267	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.
	268
	269	[[image:image-20240420154023-12.png\|\|height="436" width="942"]](% title="Click and drag to resize" %)
	270
	271	The effect can be previewed by clicking the "Preview correction" button as shown below.
	272
	273	[[image:1713598855240-454.png]]
	274
	275	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.
	276
	277
27.1	278	== 2.4 Digital wheel dial take point coordinate diagram ==
26.1	279
27.1	280	4 numbers：
26.1	281
27.1	282	(% 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" %)
26.1	283
27.1	284	5 numbers：
26.1	285
27.1	286	(% 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" %)
26.1	287
27.1	288	6 numbers：
26.1	289
27.1	290	(% 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" %)
26.1	291
27.1	292	7 numbers：
26.1	293
27.1	294	(% 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" %)
26.1	295
27.1	296	8 numbers：
26.1	297
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Wiki source code of AI Image Sensor Calibration

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