Changes for page AI Image Sensor Calibration
Last modified by Karry Zhuang on 2025/07/03 11:59
From version 112.1
edited by Karry Zhuang
on 2024/04/29 16:03
on 2024/04/29 16:03
Change comment:
Uploaded new attachment "image-20240429160257-2.png", version {1}
To version 151.2
edited by Karry Zhuang
on 2024/05/10 09:53
on 2024/05/10 09:53
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... ... @@ -27,8 +27,10 @@ 27 27 28 28 === 2.1.2 Fix Sensor to a Water Meter === 29 29 30 -The assembly necessitates the use of two screws, two spacers, and this specific device. Additionally, there are AIS Sensors available along with TTL adapters for AIS Sensors.30 +The assembly necessitates the use of two screws, two spacers, and this specific device. 31 31 32 +Additionally, there are AIS Sensors available along with AUC USB TTL adapters for AIS Sensors. 33 + 32 32 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]]. 33 33 34 34 [[image:image-20240428163842-3.png||height="425" width="609"]] [[image:image-20240428155254-1.png||height="424" width="358"]] ... ... @@ -305,94 +305,53 @@ 305 305 306 306 = (% title="Click and drag to resize" %)3. Get Sensor Data.(%%) = 307 307 308 -== (% title="Click and drag to resize" %)3.1 Get Digital Reading After Calibration(%%) == 309 309 310 - Thissectionshowsanexamplefor howtojoin the [[TheThingsNetwork>>url:https://www.thethingsnetwork.org/]] LoRaWANIoT server.Usages withother LoRaWANIoT serversareofsimilarprocedure.311 +== (% title="Click and drag to resize" %)3.1 Get Image and show in PC(%%) == 311 311 313 +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. 312 312 313 - AssumetheDLOS8isalreadyset toconnectto [[TTNV3network >>url:https://eu1.cloud.thethings.network/]].WeneedtodtheAIS Sensor devicein TTN V3portal.315 +=== (% id="cke_bm_3839S" style="display:none" %) (%%)3.1.1 The image date are obtained by serial port === 314 314 315 - **Step1**:Create aviceinTTN V3 with theOTAAkeys from AIS Sensor.317 +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 316 316 317 - Each AIS Sensor is shipped witha stickerwith thedefaultDEV EUI as below:319 +[[image:1714985699187-406.png||height="277" width="536"]] 318 318 319 - [[image:image-20230426083617-1.png||height="294"width="633"]]321 +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 320 320 321 - Enter these keysin the LoRaWAN Server portal.Belows TTN V3 screen shot:323 +[[image:1714985711524-251.png||height="140" width="526"]] 322 322 323 -Add APP EUI in the application. 324 324 325 - choosetocreate the device manually.326 +=== 3.1.2 Combined image === 326 326 327 - AddAPPKEYandDEVEUI328 +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. 328 328 329 - [[image:image-20220522232916-3.png||_mstalt="430495"_mstvisible="3"]]330 +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. 330 330 331 - [[image:1655776122894-257.png]]332 +Open WinHex to open the combined image data file. 332 332 333 - **Defaultmode OTAA**334 +[[image:1714467040612-103.png||height="134" width="649"]] 334 334 336 +Click on the edit option to choose and convert. 335 335 338 +[[image:1714467065723-178.png||height="349" width="762"]] 336 336 340 +Choose the Hex ASCII->Binary option and then click OK. 337 337 338 -[[image:1 655776241177-240.png]]342 +[[image:1714467089355-837.png||height="366" width="336"]] 339 339 340 - **Step2**: UseACT buttonto activateLHT52 andit will autojointo the TTN V3 network. After joinuccess, itwill start toupload sensordata to TTN V3 andusercanseein the panel.344 +After the conversion is finished, click on "File" and choose "Save As". 341 341 342 - === 3.1.1Uplink Payload (Fport~=5) ===346 +[[image:1714467112365-676.png]] 343 343 344 - Theuplinkpayloadincludestotally14 bytes. Uplink packetsuse FPORT=5and (% style="color:#4472c4"%)**every 20 minutes**(%%)sendoneuplink by default.348 +Save as a.jpg file and click OK to generate a JPG file. 345 345 346 -(% 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 350 +[[image:1714467126476-110.png]] 349 349 350 - [[image:1714374026505-898.png||height="200"width="736"]]352 +Open the saved JPG file to display the image transmitted by the AIS Sensor through the serial port. 351 351 352 - Payload Example(FPort=5):(% style="background-color:yellow" %)**0D 3266 29AF E0 00 00 00 02 00 05E3 B0**354 +[[image:1714467134950-189.png]] 353 353 354 -=== 3.1.2BAT-Battery information===356 +=== === 355 355 356 -These two bytes of BAT include the battery state and the actual voltage. 357 357 358 -**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 - 382 -[[image:file:///C:/Users/zzccc/AppData/Local/Temp/msohtmlclip1/01/clip_image002.jpg]][[image:1714374445395-196.png]] 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 - 390 -[[image:1714374493101-914.png]][[image:file:///C:/Users/zzccc/AppData/Local/Temp/msohtmlclip1/01/clip_image002.jpg]] 391 - 392 -Read table decimals:0x005E3B0/1000000= 0.385968 393 - 394 - 395 -== (% title="Click and drag to resize" %)3.2 Get Image and show in PC(%%) == 396 - 397 - 398 - 359 += =
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