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1		-XWiki.ting
	1	+XWiki.Edwin

Content

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116	116	== 3.3 Solar Spec ==
117	117
118	118
119		-* Solar Panel: Monocrystalline Silicon
120	120	* Dimension: 103 x 73 mm
121	121	* Max Power: 0.9 W
122	122	* Voltage at nominal power :5V (±5%)
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124	124	* Cell efficient : 22%
125	125	* UV resistance
126	126
	126	+
127	127	== 3.4 Related Document ==
128	128
129	129
130	130	* **[[Recharge Circuit. >>https://www.dropbox.com/scl/fo/p9iqzcmivaczpmhwufj6s/h?rlkey=9zq6irrzj46ajy933ghg5uw3m&dl=0]]**
131	131
	132	+
132	132	== 3.5 Recharge without Solar ==
133	133
134	134
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172	172	The power consumption mainly include three parts:
173	173
174	174	* Sleep Power  : Most time the CPU are in sleep mode. It is around 6uA, So **for one day**, total power consumption: 6uA x 24(hour) = 144 uAh = 0.144mAh (base on batter output voltage)
175		-* Watch Dog Current: Internal Water Dog to monitor Software state: this is very small and same for each device.** for one day**: 0.003mAH
	176	+* Watch Dog Current: Internal Water Dog to monitor Software state: this is very small and same for each device.** for one day**: 0.003mAH
176	176	* Sampling Power: The power consume to read sensor for each sampling.
177	177	** Example, SN50v3-LB connect to an external sensor, each reading need to use 5V , and sensor require current 10mA and 2 seconds. So each sampling need 10mA x 2 seconds / 3600 = 0.0056mAh ( base on 5v). Assume 90% converter rate from 3.3v to 5v) , we can consider the mAh in 3.3v is 0.0056mAh/90% = **0.0062mAh per sampling**. If one day, SN50v3-LB read this sensor 3 times every hour. So **for one day**, the total power consumption is 0.0062mAh x 3 x 24 = 0.4464 mAh
178	178	* Transmit & Receive Power: this power consumption depends on the transmit power and the data rate (DR) settings. They are the same for all -LB and -LS series. Below are the reference
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179	179	** EU868 band, TXP=0 (Max Power), DR=5 （Shortest Distance） : ~~0.0028mAh (base on 3.3v) (per transmit + receive).
180	180	** EU868 band, TXP=0 (Max Power), DR=0 （Longest Distance） :  ~~0.044 mAh (base on 3.3v) (per transmit + receive).
181	181
	183	+
182	182	So for SN50v3 with above sensor, we set 5V output to open 2 seconds every reading and set TDC = 20 minutes. So 72 reading and transmit every day
183	183
184	184	The total power consumption is
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196	196	)))
197	197
198	198
199		-== 4.3 Method 3: Use AI to calculate. ==
200		-
201		-=== 4.3.1 For CB version: ===
202		-
203		-For example, if you need to inquire about the battery life of the S31-CB, you can refer to the following instructions to inquire about the AI:
204		-
205		-
206		-The S31x-CB using ER26500 + SPC1520 8500mAh battery packs.
207		-
208		-~1. CB version of AI questioning techniques:
209		-
210		-Battery capacity is 8500mAh, self-discharge <2%/year
211		-Sleep current:  19.618uA
212		-Sampling current&Duration:  20mA. 10 seconds
213		-UDP Transmit/Receive Current & Duration:  58mA, 36 sec.
214		-MQTT protocol transmit current & duration:  63mA, 41 seconds
215		-TCP protocol transmit current & duration:  62mA, 41 seconds
216		-GSP positioning current & duration:  87.0756mA, 44.162 seconds
217		-Timed Acquisition Current & Duration:  8.78151mA, 0.125338s
218		-Acquisition every 120 minutes, launching once, GPS positioning once a day ,15 minutes timed acquisition once
219		-How many years can the battery be used in different transmission modes?
220		-
221		-
222		-**AI Response Results:**
223		-
224		-[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/S31-CBS31B-CB--NB-IoTLTE-M_Temperature%26Humidity_Sensor_User_Manual/WebHome/image-20250314084804-1.png?width=557&height=1828&rev=1.1||alt="image-20250314084804-1.png"]]
225		-
226		-
227		-
228		-=== 4.3.2. For CS version: ===
229		-
230		-
231		-For example, if you need to inquire about the battery life of the S31-CS, you can refer to the following instructions to inquire about the AI:
232		-
233		-The S31x-CS uses a 3000mAh Li-Ion battery.
234		-
235		-Battery capacity is 8500mAh, self-discharge <2%/year
236		-Sleep current: 50.409uA
237		-Sampling current&Duration:  20mA. 10 seconds
238		-UDP Transmit/Receive Current & Duration:  58mA, 36 seconds.
239		-MQTT protocol transmit current & duration:  63mA, 41 seconds
240		-TCP protocol transmit current & duration:  62mA, 41 seconds
241		-GSP positioning current & duration:  87.0756mA, 44.162 seconds
242		-Timed Acquisition Current & Duration:  8.78151mA, 0.125338 seconds
243		-Acquisition every 120 minutes, launching once, GPS positioning once a day ,15 minutes timed acquisition once
244		-How many years can the battery be used in different transmission modes?
245		-
246		-**AI Response Results:**
247		-
248		-[[image:https://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/S31-CBS31B-CB--NB-IoTLTE-M_Temperature%26Humidity_Sensor_User_Manual/WebHome/image-20250314093630-2.png?width=523&height=1621&rev=1.1||alt="image-20250314093630-2.png"]]
249		-
250		-
251		-
252		-=== 4.3.3. For LB version: ===
253		-
254		-
255		-
256		-
257	257	= 5. Debug for Battery running out shortly =
258	258
259	259