Wiki source code of AI Image Sensor Calibration

Version 133.1 by Karry Zhuang on 2024/04/30 16:51

version	line-number	content
3.1	1
2.1	2
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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
58.2	21
1.1	22	== 2.1 Calibrate a Water Meter ==
	23
	24	=== 2.1.1 Introduce ===
	25
26.1	26	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.
	27
90.2	28	=== 2.1.2 Fix Sensor to a Water Meter ===
1.1	29
113.1	30	The assembly necessitates the use of two screws, two spacers, and this specific device.
1.1	31
113.1	32	Additionally, there are AIS Sensors available along with AUC USB TTL adapters for AIS Sensors.
	33
81.2	34	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]].
	35
90.2	36	[[image:image-20240428163842-3.png\|\|height="425" width="609"]] [[image:image-20240428155254-1.png\|\|height="424" width="358"]]
	37
	38	The procedure is as follows:
	39
92.4	40	~1. Secure back of 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.
90.2	41
	42	[[image:image-20240428165320-4.gif]]
	43
	44	2. Proceed by fastening the device using the previously prepared screws and gaskets.
	45
	46	[[image:image-20240428165354-5.gif]]
	47
	48	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.
	49
	50	[[image:image-20240428165412-6.gif]].
	51
92.2	52	The AI Sensors and AUC USB TTL Adapter for AIS Sensors are connected and then connected to the PC.
90.2	53
92.2	54	[[image:image-20240428165634-7.gif]][[image:image-20240428165645-8.jpeg\|\|height="332" width="443"]]
90.2	55
	56
	57
	58
27.1	59	=== 2.1.3 Calibration ===
26.1	60
93.3	61	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	62
58.3	63	Choose the largest number of serial port, for example, here shows 13 and 14, then choose 14.
56.5	64
26.1	65	(% class="box warningmessage" %)
	66	(((
79.2	67	(% 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	68	)))
	69
45.3	70	(% 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	71
27.1	72	Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
26.1	73
45.3	74	(% 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	75
27.1	76	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	77
45.3	78	(% 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	79
45.3	80	(% 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	81
27.1	82	This water meter has only five fields, and the coordinates of the digital roulette wheel are shown in the figure.
26.1	83
27.1	84	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	85
45.3	86	(% 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	87
56.3	88	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	89
45.3	90	(% 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	91
27.1	92	Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up
29.1	93
27.1	94	The "Long dial" option is the long hand dial.
29.1	95
27.1	96	The "Short dial" option is the short pointer and digital wheel dial.
29.1	97
27.1	98	The "Digit wheel" option is the digital wheel dial.
29.1	99
27.1	100	Now we are calibrating the digital wheel face of the water meter. Here we select "digit wheel".
26.1	101
45.3	102	(% 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	103
29.1	104	1:Fill in the coordinates you just got; it's best to get a coordinate and fill in a coordinate.
26.1	105
45.2	106	2: Fill in the number of number wheel on their dial,fi;
26.1	107
27.1	108	3: Select the number of short Pointers (currently we don't use short Pointers, the "digit wheelu" option defaults to 0);
26.1	109
27.1	110	4: Preview whether the setting of their coordinates is accurate;
26.1	111
27.1	112	5: Click to write all configuration to AIS;
26.1	113
27.1	114	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	115
45.3	116	(% 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	117
27.1	118	The effect can be previewed by clicking the "Preview correction" button as shown below.
26.1	119
27.1	120	(% 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	121
	122
27.1	123	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	124
45.2	125	(% 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	126
45.2	127	(% title="Click and drag to resize" %)
	128
58.4	129	== 2.2 Calibration Power Meter ==
26.1	130
30.1	131	=== 2.2.1 Introduce ===
	132
39.2	133	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	134
96.1	135	=== 2.2.2 Fix Sensor to a Power Meter(% title="Click and drag to resize" %)(%%) ===
30.1	136
93.2	137	You can utilize a couple of pea clips or other suitable fixtures to securely fasten the AIS sensor and ensure precise alignment of the camera with the digital watch wheel.
30.1	138
102.1	139	[[image:image-20240429091325-1.png\|\|height="706" width="535"]]
30.1	140
	141	=== 2.2.3 Calibration ===
	142
	143	Perform a power reset on the EVB board, making sure to close the ota.exe program before opening HMX_FT4222H_GUI.exe.
	144
58.3	145	Choose the largest number of serial port, for example, here shows 13 and 14, then choose 14.
56.5	146
30.1	147	(% class="box warningmessage" %)
	148	(((
	149	(% 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.
	150	)))
	151
45.2	152	(% 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	153
	154	Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
	155
49.2	156	(% 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	157
41.2	158	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	159
41.2	160	[[image:1713592384928-500.png\|\|height="494" width="266"]][[image:image-20240420141955-4.png\|\|height="492" width="782"]]
39.2	161
41.2	162	This power meter has only six fields, and the coordinates of the digital roulette wheel are shown in the figure.
39.2	163
41.2	164	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	165
41.2	166	(% 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	167
56.3	168	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	169
51.2	170	[[image:image-20240420153316-11.png\|\|height="569" width="755"]]
39.2	171
41.3	172	(% id="cke_bm_67462S" style="display:none" %) (%%)Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up
	173
	174	The "Long dial" option is the long hand dial.
	175
	176	The "Short dial" option is the short pointer and digital wheel dial.
	177
	178	The "Digit wheel" option is the digital wheel dial.
	179
	180	Now we are calibrating the digital wheel face of the power meter. Here we select "digit wheel".
	181
45.3	182	(% 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	183
	184	1: Fill in the coordinates you just got; it's best to get a coordinate and fill in a coordinate.
	185
45.2	186	2: Fill in the number of number wheel on their dial,six;
41.3	187
	188	3: Select the number of short Pointers (currently we don't use short Pointers, the "digit wheelu" option defaults to 0);
	189
	190	4: Preview whether the setting of their coordinates is accurate;
	191
	192	5: Click to write all configuration to AIS;
	193
	194	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.
	195
45.2	196	[[image:image-20240420143939-6.png\|\|height="408" width="886"]](% title="Click and drag to resize" %)
41.3	197
	198	The effect can be previewed by clicking the "Preview correction" button as shown below.
	199
45.2	200	[[image:image-20240420144154-7.png\|\|height="534" width="880"]]
41.3	201
45.2	202	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	203
45.2	204	[[image:1713595371004-125.png]]
41.3	205
	206
58.4	207	== 2.3 Calibration Gas Meter ==
26.1	208
47.2	209	=== 2.3.1 Introduce ===
45.4	210
47.2	211	This gas meter uses G2.5 membrane gas meter. It features eight dial numbers for measurement accuracy.
45.4	212
47.2	213	=== 2.3.2 Fix Sensor to a Gas Meter ===
45.4	214
96.1	215	You can utilize a couple of pea clips or other suitable fixtures to securely fasten the AIS sensor and ensure precise alignment of the camera with the digital watch wheel.
45.4	216
102.1	217	[[image:image-20240429092436-2.png\|\|height="676" width="519"]]
45.4	218
99.1	219
62.1	220	=== 2.3.3 Calibration ===
47.2	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
58.3	224	Choose the largest number of serial port, for example, here shows 13 and 14, then choose 14.
56.5	225
47.2	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
49.2	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]]
47.2	236
49.2	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.
47.2	238
49.2	239	[[image:1713592384928-500.png\|\|height="494" width="266"]][[image:1713598094208-496.png\|\|height="494" width="790"]]
47.2	240
56.4	241	This gas meter has eight fields, and the coordinates of the digital roulette wheel are shown in the figure.
47.2	242
49.2	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.
47.2	244
49.2	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"]]
47.2	246
56.3	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.
47.2	248
50.2	249	[[image:image-20240420153139-10.png\|\|height="530" width="710"]]
49.2	250
50.2	251	(% 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	252
50.2	253	The "Long dial" option is the long hand dial.
49.2	254
50.2	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
56.4	259	Now we are calibrating the digital wheel face of the gas meter. Here we select "digit wheel".
50.2	260
	261	(% aria-label="1713576691266-408.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713576691266-408.png\|\|data-widget="image"]]
	262
54.2	263	1: Fill in the coordinates you just got; it's best to get a coordinate and fill in a coordinate.
50.2	264
54.2	265	2: Fill in the number of number wheel on their dial,eight;
50.2	266
54.2	267	3: Select the number of short Pointers (currently we don't use short Pointers, the "digit wheelu" option defaults to 0);
50.2	268
54.2	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
104.1	283	[[image:1714358288601-933.png]]
54.2	284
27.1	285	== 2.4 Digital wheel dial take point coordinate diagram ==
26.1	286
27.1	287	4 numbers：
26.1	288
27.1	289	(% 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	290
27.1	291	5 numbers：
26.1	292
27.1	293	(% 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	294
27.1	295	6 numbers：
26.1	296
27.1	297	(% 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	298
27.1	299	7 numbers：
26.1	300
27.1	301	(% 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	302
27.1	303	8 numbers：
26.1	304
27.1	305	(% 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" %)
82.1	306
	307
	308	= (% title="Click and drag to resize" %)3. Get Sensor Data.(%%) =
	309
	310	== (% title="Click and drag to resize" %)3.1 Get Digital Reading After Calibration(%%) ==
	311
111.3	312	This section shows an example for how to join the [[TheThingsNetwork>>url:https://www.thethingsnetwork.org/]] LoRaWAN IoT server. Usages with other LoRaWAN IoT servers are of similar procedure.
82.1	313
111.3	314
	315	Assume the DLOS8 is already set to connect to [[TTN V3 network >>url:https://eu1.cloud.thethings.network/]]. We need to add the AIS Sensor device in TTN V3 portal.
	316
	317	Step 1: Create a device in TTN V3 with the OTAA keys from AIS Sensor.
	318
	319	Each AIS Sensor is shipped with a sticker with the default DEV EUI as below:
	320
119.1	321	[[image:image-20240430155056-2.png\|\|height="207" width="450"]]
111.3	322
	323	Enter these keys in the LoRaWAN Server portal. Below is TTN V3 screen shot:
	324
	325	Add APP EUI in the application.
	326
	327	choose to create the device manually.
	328
	329	Add APP KEY and DEV EUI
	330
119.1	331	[[image:image-20240430155117-3.png\|\|height="544" width="563"]]
111.3	332
115.1	333	[[image:image-20240430154736-1.png\|\|height="414" width="658"]]
111.3	334
115.1	335
111.3	336	Default mode OTAA
	337
119.1	338	[[image:image-20240430155302-4.png\|\|height="630" width="453"]]
111.3	339
	340	Step 2: Use ACT button to activate LHT52 and it will auto join to the TTN V3 network. After join success, it will start to upload sensor data to TTN V3 and user can see in the panel.
	341
111.2	342	=== 3.1.1 Uplink Payload (Fport~=5) ===
	343
	344	The uplink payload includes totally 14 bytes. Uplink packets use FPORT=5 and (% style="color:#4472c4" %)every 20 minutes(%%) send one uplink by default.
	345
	346	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:370px" %)
	347	\|=(% style="width: 60px;background-color:#4F81BD;color:white" %)Size(bytes)(% style="display:none" %) (%%)\|=(% style="width: 60px;background-color:#4F81BD;color:white" %)2\|=(% style="width: 80px;background-color:#4F81BD;color:white" %)4\|=(% style="width: 80px;background-color:#4F81BD;color:white" %)4\|=(% style="width: 60px;background-color:#4F81BD;color:white" %)4
	348	\|(% style="width:99px" %)Value\|(% style="width:62px" %)BAT\|sysTimeCurrent\|Integer\|Decimal
	349
	350	[[image:1714374026505-898.png\|\|height="200" width="736"]]
	351
	352	Payload Example（FPort=5）：(% style="background-color:yellow" %)0D 32 66 29 AF E0 00 00 00 02 00 05 E3 B0
	353
	354	=== 3.1.2 BAT- Battery information ===
	355
	356	These two bytes of BAT include the battery state and the actual voltage.
	357
	358	Ex：0x0B32 = 3378mV
	359
	360	=== 3.1.3 sysTimeCurrent ===
	361
	362	These four bytes contain the year, month, day, hour, minute, and second of the time.
	363
	364	AI Sensor use Unix TimeStamp format based on
	365
	366	[[image:1714374373681-339.png\|\|height="81" width="527"]]
	367
	368	Users can get this time from the link: [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
	369
	370	Below is the converter example
	371
	372	Ex：6629AFE0=2024-04-25 01:20:32
	373
	374	[[image:1714374389825-148.png\|\|height="313" width="428"]][[image:1714374398047-940.png\|\|height="214" width="508"]]
	375
	376	So, we can use AT+TIMESTAMP=1714012723 or downlink 6629C233 to set the current time 2024 – April ~-~- 25 Thursday 02:38:41
	377
	378	=== 3.1.4 Integer ===
	379
	380	These four bytes display the integers in the digital wheel face
	381
119.2	382	[[image:1714374445395-196.png]]
111.2	383
	384	Read table integer：0x00000002=2
	385
	386	=== 3.1.5 Decimal ===
	387
	388	These four bytes display decimals on the digital wheel.
	389
119.2	390	[[image:1714374493101-914.png]]
111.2	391
	392	Read table decimals：0x005E3B0/1000000= 0.385968
	393
	394
82.1	395	== (% title="Click and drag to resize" %)3.2 Get Image and show in PC(%%) ==
119.2	396
	397	To get the AIS current image on the PC, you can issue commands through TTN or connect AIS to your PC with TTL to send commands through the serial port to obtain relevant data packets.
	398
	399	=== 3.2.1 The image packets are obtained by TTN ===
	400
119.4	401	Make sure that node ACK is on: AT+PNACKMD=1 or 34 01
119.3	402
	403	Then send the graph instruction 0B 01.
119.4	404
120.2	405	The next time the AIS Sensor device runs at the set time, it will start collecting image data.
119.4	406
120.2	407	[[image:1714465192126-772.png\|\|height="478" width="678"]]
119.4	408
120.2	409	The uplink payload includes totally 208 bytes. Uplink packets use FPORT=3
119.4	410
120.2	411	(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:370px" %)
	412	\|=(% style="width: 60px;background-color:#4F81BD;color:white" %)Size(bytes)(% style="display:none" %) (%%)\|=(% style="width: 60px;background-color:#4F81BD;color:white" %)4\|=(% style="width: 80px;background-color:#4F81BD;color:white" %)2\|=(% style="width: 80px;background-color:#4F81BD;color:white" %)1\|=(% style="width: 60px;background-color:#4F81BD;color:white" %)1\|=(% style="width: 80px;background-color:#4F81BD;color:white" %)200
121.2	413	\|(% style="width:99px" %)Value\|(% style="width:62px" %)sysTimeCurrent\|BAT\|total_packages\|subcontracting_count\|Image_date
119.4	414
121.2	415	[[image:1714465532892-179.png\|\|height="250" width="586"]]
119.4	416
124.2	417	Example of the first payload（FPort=3）：663095C00BBE1000FFD8FFE000104A46494600010101004800480000FFDB0043001B12141714111B1716171E1C1B2028422B28252528513A3D3042605565645F555D5B6A7899816A7190735B5D85B586909EA3ABADAB6780BCC9BAA6C799A8ABA4FFDB0043011C1E1E2823284E2B2B4EA46E5D6EA4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4FFC0000B0800F0014001012200FFC4001F00000105010101010101000000000000000001020304050607
119.4	418
124.2	419	==== 3.2.1.1sysTimeCurrent ====
119.4	420
124.2	421	These four bytes contain the year, month, day, hour, minute, and second of the time.
119.4	422
124.2	423	AI Sensor use Unix TimeStamp format based on.
119.4	424
124.2	425	[[image:1714465658414-905.png\|\|height="85" width="553"]]
	426
	427	Users can get this time from the link: [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
	428
	429	Below is the converter example
	430
	431	EX: 663095C0=2024-04-30 06:54:57.
	432
125.2	433	[[image:image-20240430162820-5.png\|\|height="218" width="532"]]
124.2	434
130.3	435	==== 3.2.1.2 BAT- Battery information ====
124.2	436
125.2	437	These two bytes of BAT include the battery state and the actual voltage.
	438
130.2	439	[[image:image-20240430163600-8.png\|\|height="50" width="1141"]]
	440
125.3	441	Ex：0X0BBE= 3006 mv
125.2	442
130.2	443	==== ====
125.2	444
130.3	445	==== 3.2.1.3 total_packages ====
125.2	446
130.2	447	This byte represents the total number of packets for the image fetched this time.
125.2	448
130.2	449	[[image:image-20240430163626-9.png\|\|height="47" width="1116"]]
	450
	451	==== ====
	452
130.3	453	==== 3.2.1.4 subcontracting_count ====
130.2	454
	455	This byte represents the data number of the image packet retrieved
	456
	457	[[image:image-20240430163738-10.png\|\|height="44" width="1117"]]
	458
	459
130.3	460	==== 3.2.1.5 Image_date ====
130.2	461
130.4	462	Apart from the eight bytes mentioned above, the next 200 bytes are all image data.
130.2	463
130.4	464	Example the first packet：663095C00BBE1000FFD8FFE000104A46494600010101004800480000FFDB0043001B12141714111B1716171E1C1B2028422B28252528513A3D3042605565645F555D5B6A7899816A7190735B5D85B586909EA3ABADAB6780BCC9BAA6C799A8ABA4FFDB0043011C1E1E2823284E2B2B4EA46E5D6EA4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4FFC0000B0800F0014001012200FFC4001F00000105010101010101000000000000000001020304050607
130.2	465
130.4	466	Image_date=FFD8FFE000104A46494600010101004800480000FFDB0043001B12141714111B1716171E1C1B2028422B28252528513A3D3042605565645F555D5B6A7899816A7190735B5D85B586909EA3ABADAB6780BCC9BAA6C799A8ABA4FFDB0043011C1E1E2823284E2B2B4EA46E5D6EA4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4A4FFC0000B0800F0014001012200FFC4001F00000105010101010101000000000000000001020304050607
130.2	467
	468
130.4	469	==== 3.2.1.6 Combined image ====
130.2	470
130.5	471	Once all the data has been uploaded to the TTN platform, the subsequent step involves concatenating each packet in sequential order and saving it into a new TXT file. It is important to note that the first 8 bytes of each packet should be removed before concatenation.
130.2	472
130.5	473	When you combine all the packets, you need to convert the data inside to binary. Here the conversion is demonstrated using the [[WinHex>>http://www.x-ways.net/winhex/index-m.html]] software.
130.2	474
130.3	475
130.4	476
	477
125.2	478

Wiki source code of AI Image Sensor Calibration

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