Wiki source code of AI Image Sensor Calibration

Version 176.1 by Karry Zhuang on 2024/05/16 16:58

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
176.1	21	According to the requirements to upgrade the firmware to correct the reading, respectively:[[Digital wheel dial firmware>>url:https://www.dropbox.com/scl/fi/nxa0nw0k2qhbpcxzfsz03/Digital-table-wheel-firmware.rar?rlkey=u9wqmilfwu899fhc9i2jfcwou&st=ftsl46f5&dl=0]]，[[Pointer dial firmware>>url:https://www.dropbox.com/scl/fi/y03feisk7ztq1ey6pmhqb/Pointer-dial-firmware.rar?rlkey=knlx67m1g26xukrthcum1kk23&st=5m196s89&dl=0]].
58.2	22
176.1	23	Firmware upgrade Reference:[[Update Firmware for the AI Sensors>>http://wiki.dragino.com/xwiki/bin/view/Main/Update%20Firmware%20for%20AI%20Sensor/]].
	24
1.1	25	== 2.1 Calibrate a Water Meter ==
	26
	27	=== 2.1.1 Introduce ===
	28
26.1	29	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.
	30
90.2	31	=== 2.1.2 Fix Sensor to a Water Meter ===
1.1	32
113.1	33	The assembly necessitates the use of two screws, two spacers, and this specific device.
1.1	34
113.1	35	Additionally, there are AIS Sensors available along with AUC USB TTL adapters for AIS Sensors.
	36
81.2	37	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]].
	38
90.2	39	[[image:image-20240428163842-3.png\|\|height="425" width="609"]] [[image:image-20240428155254-1.png\|\|height="424" width="358"]]
	40
	41	The procedure is as follows:
	42
92.4	43	~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	44
	45	[[image:image-20240428165320-4.gif]]
	46
	47	2. Proceed by fastening the device using the previously prepared screws and gaskets.
	48
	49	[[image:image-20240428165354-5.gif]]
	50
	51	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.
	52
	53	[[image:image-20240428165412-6.gif]].
	54
92.2	55	The AI Sensors and AUC USB TTL Adapter for AIS Sensors are connected and then connected to the PC.
90.2	56
92.2	57	[[image:image-20240428165634-7.gif]][[image:image-20240428165645-8.jpeg\|\|height="332" width="443"]]
90.2	58
	59
	60
	61
27.1	62	=== 2.1.3 Calibration ===
26.1	63
157.1	64	Open the software [[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	65
175.1	66	For example, Select the corresponding serial port number, here 14.
56.5	67
26.1	68	(% class="box warningmessage" %)
	69	(((
79.2	70	(% 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	71	)))
	72
45.3	73	(% 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	74
27.1	75	Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
26.1	76
45.3	77	(% 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	78
27.1	79	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	80
45.3	81	(% 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	82
45.3	83	(% 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	84
27.1	85	This water meter has only five fields, and the coordinates of the digital roulette wheel are shown in the figure.
26.1	86
27.1	87	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	88
45.3	89	(% 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	90
56.3	91	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	92
45.3	93	(% 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	94
27.1	95	Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up
29.1	96
27.1	97	The "Long dial" option is the long hand dial.
29.1	98
27.1	99	The "Short dial" option is the short pointer and digital wheel dial.
29.1	100
27.1	101	The "Digit wheel" option is the digital wheel dial.
29.1	102
27.1	103	Now we are calibrating the digital wheel face of the water meter. Here we select "digit wheel".
26.1	104
45.3	105	(% 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	106
29.1	107	1:Fill in the coordinates you just got; it's best to get a coordinate and fill in a coordinate.
26.1	108
45.2	109	2: Fill in the number of number wheel on their dial,fi;
26.1	110
27.1	111	3: Select the number of short Pointers (currently we don't use short Pointers, the "digit wheelu" option defaults to 0);
26.1	112
27.1	113	4: Preview whether the setting of their coordinates is accurate;
26.1	114
27.1	115	5: Click to write all configuration to AIS;
26.1	116
27.1	117	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	118
45.3	119	(% 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	120
27.1	121	The effect can be previewed by clicking the "Preview correction" button as shown below.
26.1	122
27.1	123	(% 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	124
	125
27.1	126	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	127
45.2	128	(% 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	129
45.2	130	(% title="Click and drag to resize" %)
	131
58.4	132	== 2.2 Calibration Power Meter ==
26.1	133
30.1	134	=== 2.2.1 Introduce ===
	135
39.2	136	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	137
96.1	138	=== 2.2.2 Fix Sensor to a Power Meter(% title="Click and drag to resize" %)(%%) ===
30.1	139
93.2	140	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	141
102.1	142	[[image:image-20240429091325-1.png\|\|height="706" width="535"]]
30.1	143
	144	=== 2.2.3 Calibration ===
	145
158.1	146	Open the software [[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.
30.1	147
175.1	148	For example, Select the corresponding serial port number, here 14.
56.5	149
30.1	150	(% class="box warningmessage" %)
	151	(((
158.1	152	(% 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.
30.1	153	)))
	154
45.2	155	(% 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	156
	157	Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
	158
49.2	159	(% 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	160
41.2	161	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	162
41.2	163	[[image:1713592384928-500.png\|\|height="494" width="266"]][[image:image-20240420141955-4.png\|\|height="492" width="782"]]
39.2	164
41.2	165	This power meter has only six fields, and the coordinates of the digital roulette wheel are shown in the figure.
39.2	166
41.2	167	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	168
41.2	169	(% 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	170
56.3	171	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	172
51.2	173	[[image:image-20240420153316-11.png\|\|height="569" width="755"]]
39.2	174
41.3	175	(% id="cke_bm_67462S" style="display:none" %) (%%)Click the "ROI setting" button in "HIMAX_AMR_PC_Tool" and three options will pop up
	176
	177	The "Long dial" option is the long hand dial.
	178
	179	The "Short dial" option is the short pointer and digital wheel dial.
	180
	181	The "Digit wheel" option is the digital wheel dial.
	182
	183	Now we are calibrating the digital wheel face of the power meter. Here we select "digit wheel".
	184
45.3	185	(% 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	186
	187	1: Fill in the coordinates you just got; it's best to get a coordinate and fill in a coordinate.
	188
45.2	189	2: Fill in the number of number wheel on their dial,six;
41.3	190
	191	3: Select the number of short Pointers (currently we don't use short Pointers, the "digit wheelu" option defaults to 0);
	192
	193	4: Preview whether the setting of their coordinates is accurate;
	194
	195	5: Click to write all configuration to AIS;
	196
	197	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.
	198
45.2	199	[[image:image-20240420143939-6.png\|\|height="408" width="886"]](% title="Click and drag to resize" %)
41.3	200
	201	The effect can be previewed by clicking the "Preview correction" button as shown below.
	202
45.2	203	[[image:image-20240420144154-7.png\|\|height="534" width="880"]]
41.3	204
45.2	205	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	206
45.2	207	[[image:1713595371004-125.png]]
41.3	208
	209
58.4	210	== 2.3 Calibration Gas Meter ==
26.1	211
47.2	212	=== 2.3.1 Introduce ===
45.4	213
47.2	214	This gas meter uses G2.5 membrane gas meter. It features eight dial numbers for measurement accuracy.
45.4	215
47.2	216	=== 2.3.2 Fix Sensor to a Gas Meter ===
45.4	217
96.1	218	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	219
102.1	220	[[image:image-20240429092436-2.png\|\|height="676" width="519"]]
45.4	221
99.1	222
62.1	223	=== 2.3.3 Calibration ===
47.2	224
158.1	225	Open the software [[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.
47.2	226
175.1	227	For example, Select the corresponding serial port number, here 14.
56.5	228
47.2	229	(% class="box warningmessage" %)
	230	(((
158.1	231	(% 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.
47.2	232	)))
	233
	234	(% 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" %)
	235
	236	Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
	237
49.2	238	(% 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	239
49.2	240	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	241
49.2	242	[[image:1713592384928-500.png\|\|height="494" width="266"]][[image:1713598094208-496.png\|\|height="494" width="790"]]
47.2	243
56.4	244	This gas meter has eight fields, and the coordinates of the digital roulette wheel are shown in the figure.
47.2	245
49.2	246	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	247
49.2	248	(% 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	249
56.3	250	(% 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	251
50.2	252	[[image:image-20240420153139-10.png\|\|height="530" width="710"]]
49.2	253
50.2	254	(% 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	255
50.2	256	The "Long dial" option is the long hand dial.
49.2	257
50.2	258	The "Short dial" option is the short pointer and digital wheel dial.
	259
	260	The "Digit wheel" option is the digital wheel dial.
	261
56.4	262	Now we are calibrating the digital wheel face of the gas meter. Here we select "digit wheel".
50.2	263
	264	(% aria-label="1713576691266-408.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1713576691266-408.png\|\|data-widget="image"]]
	265
54.2	266	1: Fill in the coordinates you just got; it's best to get a coordinate and fill in a coordinate.
50.2	267
54.2	268	2: Fill in the number of number wheel on their dial,eight;
50.2	269
54.2	270	3: Select the number of short Pointers (currently we don't use short Pointers, the "digit wheelu" option defaults to 0);
50.2	271
54.2	272	4: Preview whether the setting of their coordinates is accurate;
	273
	274	5: Click to write all configuration to AIS;
	275
	276	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.
	277
	278	[[image:image-20240420154023-12.png\|\|height="436" width="942"]](% title="Click and drag to resize" %)
	279
	280	The effect can be previewed by clicking the "Preview correction" button as shown below.
	281
	282	[[image:1713598855240-454.png]]
	283
	284	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.
	285
104.1	286	[[image:1714358288601-933.png]]
54.2	287
27.1	288	== 2.4 Digital wheel dial take point coordinate diagram ==
26.1	289
27.1	290	4 numbers：
26.1	291
27.1	292	(% 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	293
27.1	294	5 numbers：
26.1	295
27.1	296	(% 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	297
27.1	298	6 numbers：
26.1	299
27.1	300	(% 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	301
27.1	302	7 numbers：
26.1	303
27.1	304	(% 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	305
27.1	306	8 numbers：
26.1	307
164.2	308	(% 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"]]
82.1	309
164.2	310	(% title="Click and drag to resize" %)
82.1	311
164.2	312	== 2.5 Pressure Pointer Meter Calibration ==
	313
	314	=== 2.5.1 Introduce ===
	315
	316	The pressure pointer meter of the example is 1.6MPa range
	317
	318	=== 2.5.2 Fix Sensor to a Power Meter ===
	319
	320	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 pressure pointer meter.
	321
	322	[[image:image-20240516163229-1.jpeg\|\|height="595" width="446"]]
	323
	324	=== 2.5.3 Calibration ===
	325
	326	Open the software [[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.
	327
175.1	328	For example, Select the corresponding serial port number, here 14.
164.2	329
	330	(% class="box warningmessage" %)
	331	(((
	332	(% 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.
	333	)))
	334
	335	[[image:image-20240516163338-2.png\|\|height="455" width="733"]]
	336
	337
	338	Next, select a Baud rate of 921600 and click on "start". Then, click on "show full image" to display the camera screen.
	339
	340	[[image:image-20240516163423-3.png]]
	341
	342
	343	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.
	344
	345	[[image:image-20240516163501-4.png\|\|height="482" width="694"]]
	346
	347	[[image:image-20240516163528-5.png\|\|height="336" width="696"]]
	348
	349
	350	The computer's drawing tool can be used to open the latest bmp image and get the coordinates of the pressure pointer meter, as shown below.
	351
	352	The coordinates of the pressure pointer table are located as shown below.
	353
	354	1 is the start point, 2 is the center point, and 3 is the end point.
	355
	356	The (x,y) coordinate on the image is located at the bottom left corner.
	357
	358	[[image:image-20240516163622-6.png\|\|height="648" width="666"]]
	359
	360
166.2	361	Click on the ROI settingbutton in himax_amr_pc_tool. it will have three optionsThe long dial" option is a long dial dial.The "short dial" option is a short pointer and a number of wheel dial.The digit wheeler option is the digital wheel dial.Now the calibration is the pressure pointer table, which is long dialon."
164.2	362
166.2	363	[[image:image-20240516163910-7.png]]
164.2	364
	365
166.2	366	Fill in the values of the coordinates you just got, and it's best to get one and write one
164.2	367
166.2	368	1 Coordinates of the starting point of the scale
	369
	370	2 Coordinates of the center point of the dial
	371
	372	3 Coordinates of the end of the scale
	373
	374	4 Starting scale value
	375
	376	5 End point scale value *100
	377
174.1	378	After filling in the data, click "send ROI" to save the Settings and click "Cancel" to exit.
166.2	379
174.1	380	[[image:image-20240516164128-13.png\|\|height="410" width="889"]]
166.2	381
	382
174.1	383	After the calibration process is completed, The AIS cannot move thereafter to avoid misreading.
166.2	384
174.1	385	it can be observed that the obtained reading aligns consistently with the numerical value displayed on the digital wheel dial.
166.2	386
174.1	387	[[image:image-20240516164153-14.png]]
166.2	388
	389
	390
82.1	391	= (% title="Click and drag to resize" %)3. Get Sensor Data.(%%) =
	392
	393
151.2	394	== (% title="Click and drag to resize" %)3.1 Get Image and show in PC(%%) ==
82.1	395
150.1	396	To get the AIS current image on the PC, you can connect AIS to your PC with TTL to send commands through the serial port to obtain relevant data packets.
119.2	397
151.2	398	=== (% id="cke_bm_3839S" style="display:none" %) (%%)3.1.1 The image date are obtained by serial port ===
119.2	399
150.1	400	Select the corresponding baud rate and serial port number through the serial port tool, select HEX display and HEX send, and continuously receive data from the AIS Sensor
119.3	401
155.1	402	[[image:image-20240514161623-2.png\|\|height="541" width="1439"]]
119.4	403
150.1	404	In the serial port to send data C0 5A 00 00 00 00 04, and then send C0 5A 00 00 00 00 09, AIS Sensor will send a real-time image of the data packet, and then stop sending. Start with FFD8 and put it in TXT file
119.4	405
155.1	406	[[image:image-20240514161658-3.png\|\|height="544" width="1441"]]
119.4	407
	408
151.2	409	=== 3.1.2 Combined image ===
119.4	410
130.5	411	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	412
130.5	413	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	414
136.2	415	Open WinHex to open the combined image data file.
130.3	416
136.2	417	[[image:1714467040612-103.png\|\|height="134" width="649"]]
130.4	418
136.2	419	Click on the edit option to choose and convert.
130.4	420
136.2	421	[[image:1714467065723-178.png\|\|height="349" width="762"]]
	422
	423	Choose the Hex ASCII->Binary option and then click OK.
	424
	425	[[image:1714467089355-837.png\|\|height="366" width="336"]]
	426
	427	After the conversion is finished, click on "File" and choose "Save As".
	428
	429	[[image:1714467112365-676.png]]
	430
	431	Save as a.jpg file and click OK to generate a JPG file.
	432
	433	[[image:1714467126476-110.png]]
	434
	435	Open the saved JPG file to display the image transmitted by the AIS Sensor through the serial port.
	436
	437	[[image:1714467134950-189.png]]
	438
157.1	439	=== ===
136.2	440
	441
157.1	442	= =

Wiki source code of AI Image Sensor Calibration

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