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Last modified by Karry Zhuang on 2025/07/03 11:59
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edited by Karry Zhuang
on 2024/04/28 16:54
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edited by Karry Zhuang
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18 18  
19 19  = 2. Calibrate Digits Readings =
20 20  
21 -The AI Sensors and AUC USB TTL Adapter for AIS Sensors are connected and then connected to the PC.
22 22  
23 - [[image:image-20240428155254-1.png||height="519" width="439"]]
24 -
25 -[[image:image-20240424163158-2.gif]][[image:image-20240424163213-3.jpeg||height="360" width="480"]]
26 -
27 27  == 2.1 Calibrate a Water Meter ==
28 28  
29 29  === 2.1.1 Introduce ===
... ... @@ -30,18 +30,40 @@
30 30  
31 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 32  
33 -=== 2.1.2 Fix Sensor to a Water Meter(% title="Click and drag to resize" %)​(%%) ===
28 +=== 2.1.2 Fix Sensor to a Water Meter ===
34 34  
35 -The AI Sensors are fixed in the device, and then the water meter is embedded and the Angle is adjusted.
30 +The assembly necessitates the use of two screws, two spacers, and this specific device.
36 36  
32 +Additionally, there are AIS Sensors available along with AUC USB TTL adapters for AIS Sensors.
33 +
37 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 38  
39 -[[image:image-20240428155835-2.png||height="493" width="371"]]
36 +[[image:image-20240428163842-3.png||height="425" width="609"]] [[image:image-20240428155254-1.png||height="424" width="358"]]
40 40  
38 +The procedure is as follows:
41 41  
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.
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 +
52 +The AI Sensors and AUC USB TTL Adapter for AIS Sensors are connected and then connected to the PC.
53 +
54 +[[image:image-20240428165634-7.gif]][[image:image-20240428165645-8.jpeg||height="332" width="443"]]
55 +
56 +
57 +
58 +
42 42  === 2.1.3 Calibration ===
43 43  
44 -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.
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.
45 45  
46 46  Choose the largest number of serial port, for example, here shows 13 and 14, then choose 14.
47 47  
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115 115  
116 116  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.
117 117  
118 -=== 2.2.2 Fix Sensor to a Power Meter ===
135 +=== 2.2.2 Fix Sensor to a Power Meter(% title="Click and drag to resize" %)​(%%) ===
119 119  
120 -Do the following with EVB_Board
121 -Debug Board SW12=[off on] : FT4222H SPI Slave mode
122 -AIoT Board SW123456=[off off off off off off]
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.
123 123  
124 -(% 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" %)​
139 +[[image:image-20240429091325-1.png||height="706" width="535"]]
125 125  
126 -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.
127 -
128 -[[image:image-20240422092350-2.png]](% title="Click and drag to resize" %)​
129 -
130 -
131 131  === 2.2.3 Calibration ===
132 132  
133 133  Perform a power reset on the EVB board, making sure to close the ota.exe program before opening HMX_FT4222H_GUI.exe.
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202 202  
203 203  === 2.3.2 Fix Sensor to a Gas Meter ===
204 204  
205 -Do the following with EVB_Board
206 -Debug Board SW12=[off on] : FT4222H SPI Slave mode
207 -AIoT Board SW123456=[off off off off off off]
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.
208 208  
209 -(% 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" %)​
217 +[[image:image-20240429092436-2.png||height="676" width="519"]]
210 210  
211 -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.
212 212  
213 -(% title="Click and drag to resize" %)​[[image:image-20240422092731-2.png||height="693" width="518"]]
214 -
215 -
216 216  === 2.3.3 Calibration ===
217 217  
218 218  Perform a power reset on the EVB board, making sure to close the ota.exe program before opening HMX_FT4222H_GUI.exe.
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276 276  
277 277  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.
278 278  
283 +[[image:1714358288601-933.png]]
279 279  
280 280  == 2.4 Digital wheel dial take point coordinate diagram ==
281 281  
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304 304  
305 305  == (% title="Click and drag to resize" %)3.1 Get Digital Reading After Calibration(%%) ==
306 306  
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.
307 307  
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 +
321 +[[image:image-20230426083617-1.png||height="294" width="633"]]
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 +
331 +[[image:image-20220522232916-3.png||_mstalt="430495" _mstvisible="3"]]
332 +
333 +[[image:1655776122894-257.png]]
334 +
335 +**Default mode OTAA**
336 +
337 +
338 +
339 +
340 +[[image:1655776241177-240.png]]
341 +
342 +**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.
343 +
344 +=== 3.1.1 Uplink Payload (Fport~=5) ===
345 +
346 +The uplink payload includes totally 14 bytes. Uplink packets use FPORT=5 and (% style="color:#4472c4" %)**every 20 minutes**(%%) send one uplink by default.
347 +
348 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:370px" %)
349 +|=(% 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
350 +|(% style="width:99px" %)Value|(% style="width:62px" %)BAT|sysTimeCurrent|Integer|Decimal
351 +
352 +[[image:1714374026505-898.png||height="200" width="736"]]
353 +
354 +Payload Example（FPort=5）：(% style="background-color:yellow" %)**0D 32 66 29 AF E0 00 00 00 02 00 05 E3 B0**
355 +
356 +=== 3.1.2 BAT- Battery information ===
357 +
358 +These two bytes of BAT include the battery state and the actual voltage.
359 +
360 +**Ex**：0x0B32 = 3378mV
361 +
362 +=== 3.1.3 sysTimeCurrent ===
363 +
364 +These four bytes contain the year, month, day, hour, minute, and second of the time.
365 +
366 +AI Sensor use Unix TimeStamp format based on
367 +
368 +[[image:1714374373681-339.png||height="81" width="527"]]
369 +
370 +Users can get this time from the link:  [[https:~~/~~/www.epochconverter.com/>>url:https://www.epochconverter.com/]] :
371 +
372 +Below is the converter example
373 +
374 +**Ex**：6629AFE0=2024-04-25 01:20:32
375 +
376 +[[image:1714374389825-148.png||height="313" width="428"]][[image:1714374398047-940.png||height="214" width="508"]]
377 +
378 +So, we can use AT+TIMESTAMP=1714012723 or downlink 6629C233 to set the current time 2024 – April ~-~- 25 Thursday 02:38:41
379 +
380 +=== 3.1.4 Integer ===
381 +
382 +These four bytes display the integers in the digital wheel face
383 +
384 +[[image:file:///C:/Users/zzccc/AppData/Local/Temp/msohtmlclip1/01/clip_image002.jpg]][[image:1714374445395-196.png]]
385 +
386 +Read table integer：0x00000002=2
387 +
388 +=== 3.1.5 Decimal ===
389 +
390 +These four bytes display decimals on the digital wheel.
391 +
392 +[[image:1714374493101-914.png]][[image:file:///C:/Users/zzccc/AppData/Local/Temp/msohtmlclip1/01/clip_image002.jpg]]
393 +
394 +Read table decimals：0x005E3B0/1000000= 0.385968
395 +
396 +
308 308  == (% title="Click and drag to resize" %)3.2 Get Image and show in PC(%%) ==
309 309  
399 +
310 310  
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