Wiki source code of AI Image Sensor Calibration

Version 50.1 by Karry Zhuang on 2024/04/20 15:31

version	line-number	content
3.1	1
2.1	2
	3
	4
28.1	5
2.1	6	Table of Contents:
	7
28.1	8	{{toc/}}
2.1	9
	10
	11
	12
	13
27.1	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
	21	== 2.1 Calibrate a Water Meter ==
	22
	23	=== 2.1.1 Introduce ===
	24
26.1	25	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.
	26
1.1	27	=== 2.1.2 Fix Sensor to a Water Meter ===
	28
26.1	29	Do the following with EVB_Board
	30	Debug Board SW12=[off on] : FT4222H SPI Slave mode
	31	AIoT Board SW123456=[off off off off off off]
1.1	32
45.3	33	(% aria-label="image-20240419174248-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240419174248-4.png\|\|data-widget="image" height="419" width="419"]](% 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-20240419174159-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240419174159-3.png\|\|data-widget="image" height="420" width="556"]](% title="Click and drag to resize" %)
1.1	34
26.1	35	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.
1.1	36
45.3	37	(% aria-label="image-20240419173432-1.jpeg image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240419173432-1.jpeg\|\|data-widget="image" height="757" width="757"]](% title="Click and drag to resize" %)
1.1	38
26.1	39
27.1	40	=== 2.1.3 Calibration ===
26.1	41
27.1	42	Perform a power reset on the EVB board, making sure to close the ota.exe program before opening HMX_FT4222H_GUI.exe.
26.1	43
	44	(% class="box warningmessage" %)
	45	(((
30.1	46	(% 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.
26.1	47	)))
	48
45.3	49	(% 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	50
27.1	51	Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
26.1	52
45.3	53	(% 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	54
27.1	55	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	56
45.3	57	(% 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	58
45.3	59	(% 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	60
27.1	61	This water meter has only five fields, and the coordinates of the digital roulette wheel are shown in the figure.
26.1	62
27.1	63	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	64
45.3	65	(% 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	66
41.3	67	The computer's drawing tool should be used to open the most recent bmp image and get the coordinates of the digital wheel dial, as shown in the picture below. Also, we need to obtain each coordinate point of the current dial following the format of said digital wheel dial. It's important to note that the (x,y) coordinate of the mouse on the image corresponds to its bottom left corner.
26.1	68
45.3	69	(% 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	70
27.1	71	Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up
29.1	72
27.1	73	The "Long dial" option is the long hand dial.
29.1	74
27.1	75	The "Short dial" option is the short pointer and digital wheel dial.
29.1	76
27.1	77	The "Digit wheel" option is the digital wheel dial.
29.1	78
27.1	79	Now we are calibrating the digital wheel face of the water meter. Here we select "digit wheel".
26.1	80
45.3	81	(% 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	82
29.1	83	1:Fill in the coordinates you just got; it's best to get a coordinate and fill in a coordinate.
26.1	84
45.2	85	2: Fill in the number of number wheel on their dial,fi;
26.1	86
27.1	87	3: Select the number of short Pointers (currently we don't use short Pointers, the "digit wheelu" option defaults to 0);
26.1	88
27.1	89	4: Preview whether the setting of their coordinates is accurate;
26.1	90
27.1	91	5: Click to write all configuration to AIS;
26.1	92
27.1	93	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	94
45.3	95	(% 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	96
27.1	97	The effect can be previewed by clicking the "Preview correction" button as shown below.
26.1	98
27.1	99	(% 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	100
	101
27.1	102	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	103
45.2	104	(% 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	105
45.2	106	(% title="Click and drag to resize" %)
	107
27.1	108	== 2.2 Calibration power meter ==
26.1	109
30.1	110
47.2	111	== 2.1 Calibrate a Power Meter ==
30.1	112
	113	=== 2.2.1 Introduce ===
	114
39.2	115	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	116
	117	=== 2.2.2 Fix Sensor to a Water Meter ===
	118
	119	Do the following with EVB_Board
	120	Debug Board SW12=[off on] : FT4222H SPI Slave mode
	121	AIoT Board SW123456=[off off off off off off]
	122
45.3	123	(% aria-label="image-20240419174248-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240419174248-4.png\|\|data-widget="image" height="419" width="419"]](% 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-20240419174159-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240419174159-3.png\|\|data-widget="image" height="420" width="556"]](% title="Click and drag to resize" %)
30.1	124
39.2	125	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	126
39.2	127	[[image:image-20240420134742-1.jpeg\|\|height="909" width="909"]](% title="Click and drag to resize" %)
30.1	128
	129
	130	=== 2.2.3 Calibration ===
	131
	132	Perform a power reset on the EVB board, making sure to close the ota.exe program before opening HMX_FT4222H_GUI.exe.
	133
	134	(% class="box warningmessage" %)
	135	(((
	136	(% 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.
	137	)))
	138
45.2	139	(% 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	140
	141	Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
	142
49.2	143	(% 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	144
41.2	145	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	146
41.2	147	[[image:1713592384928-500.png\|\|height="494" width="266"]][[image:image-20240420141955-4.png\|\|height="492" width="782"]]
39.2	148
41.2	149	This power meter has only six fields, and the coordinates of the digital roulette wheel are shown in the figure.
39.2	150
41.2	151	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	152
41.2	153	(% 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	154
41.3	155	The computer's drawing tool should be used to open the most recent bmp image and get the coordinates of the digital wheel dial, as shown in the picture below. Also, we need to obtain each coordinate point of the current dial following the format of said digital wheel dial. It's important to note that the (x,y) coordinate of the mouse on the image corresponds to its bottom left corner.
41.2	156
39.2	157	[[image:image-20240420134851-2.jpeg\|\|height="626" width="837"]]
	158
41.3	159	(% id="cke_bm_67462S" style="display:none" %) (%%)Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up
	160
	161	The "Long dial" option is the long hand dial.
	162
	163	The "Short dial" option is the short pointer and digital wheel dial.
	164
	165	The "Digit wheel" option is the digital wheel dial.
	166
	167	Now we are calibrating the digital wheel face of the power meter. Here we select "digit wheel".
	168
45.3	169	(% 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	170
	171	1: Fill in the coordinates you just got; it's best to get a coordinate and fill in a coordinate.
	172
45.2	173	2: Fill in the number of number wheel on their dial,six;
41.3	174
	175	3: Select the number of short Pointers (currently we don't use short Pointers, the "digit wheelu" option defaults to 0);
	176
	177	4: Preview whether the setting of their coordinates is accurate;
	178
	179	5: Click to write all configuration to AIS;
	180
	181	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.
	182
45.2	183	[[image:image-20240420143939-6.png\|\|height="408" width="886"]](% title="Click and drag to resize" %)
41.3	184
	185	The effect can be previewed by clicking the "Preview correction" button as shown below.
	186
45.2	187	[[image:image-20240420144154-7.png\|\|height="534" width="880"]]
41.3	188
45.2	189	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	190
45.2	191	[[image:1713595371004-125.png]]
41.3	192
	193
27.1	194	== 2.3 Calibration gas meter ==
26.1	195
47.2	196	=== 2.3.1 Introduce ===
45.4	197
47.2	198	This gas meter uses G2.5 membrane gas meter. It features eight dial numbers for measurement accuracy.
45.4	199
47.2	200	=== 2.3.2 Fix Sensor to a Gas Meter ===
45.4	201
47.2	202	Do the following with EVB_Board
	203	Debug Board SW12=[off on] : FT4222H SPI Slave mode
	204	AIoT Board SW123456=[off off off off off off]
45.4	205
47.2	206	(% aria-label="image-20240419174248-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240419174248-4.png\|\|data-widget="image" height="419" width="419"]](% 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; 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-20240419174159-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20240419174159-3.png\|\|data-widget="image" height="420" width="556"]](% title="Click and drag to resize" %)
45.4	207
47.2	208	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.
45.4	209
47.2	210	[[image:image-20240420152258-9.jpeg\|\|height="931" width="698"]]
45.4	211
47.2	212	(% title="Click and drag to resize" %)
45.4	213
47.2	214	=== 2.1.3 Calibration ===
	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
	218	(% class="box warningmessage" %)
	219	(((
	220	(% 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.
	221	)))
	222
	223	(% 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" %)
	224
	225	Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
	226
49.2	227	(% 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	228
49.2	229	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	230
49.2	231	[[image:1713592384928-500.png\|\|height="494" width="266"]][[image:1713598094208-496.png\|\|height="494" width="790"]]
47.2	232
49.2	233	This power meter has eight fields, and the coordinates of the digital roulette wheel are shown in the figure.
47.2	234
49.2	235	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	236
49.2	237	(% 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	238
	239
49.2	240
	241
	242
27.1	243	== 2.4 Digital wheel dial take point coordinate diagram ==
26.1	244
27.1	245	4 numbers：
26.1	246
27.1	247	(% 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	248
27.1	249	5 numbers：
26.1	250
27.1	251	(% 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	252
27.1	253	6 numbers：
26.1	254
27.1	255	(% 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	256
27.1	257	7 numbers：
26.1	258
27.1	259	(% 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	260
27.1	261	8 numbers：
26.1	262
27.1	263	(% 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" %)

Wiki source code of AI Image Sensor Calibration

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