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Last modified by robert on 2025/06/16 07:51
From version 42.4
edited by robert
on 2024/05/14 13:38
Change comment: There is no comment for this version
To version 41.1
edited by Sima Mousavi
on 2024/02/05 16:46
Change comment: There is no comment for this version

Summary

Details

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Author
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1 -XWiki.robert
1 +XWiki.sima
Content
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2 2  (((
3 3  (% class="col-xs-12 col-sm-8" %)
4 4  (((
5 -= **Node Types** =
5 += **SmartSolo Node Types and Procedures** =
6 6  
7 -ANSIR carry two types of three-channel nodes
7 +**SmartSolo Node Variants:**
8 8  
9 -* **SmartSolo IGU 16HR 3C (5 Hz Short Period)**
10 -* **SmartSolo BD3C-5 (5-second Broad-Band)**
9 +* **SmartSolo IGU 16HR 3C (5 Hz) Short Period Node**
10 +* **SmartSolo BD3C-5 (5-second) Broad-Band Node**
11 11  
12 -Both have a battery capacity of around 30 days. The programming, operation, and downloading procedures for both types of SmartSolo nodes are also similar.
12 +The installation, demobilization, and data downloading procedures for both types of SmartSolo nodes – the IGU 16HR 3C Short Period Node and the BD3C-5 Broad-Band Node – are largely similar.
13 13  
14 +This uniformity in process ensures ease of operation across different node types, allowing for a streamlined approach in fieldwork and data management.
14 14  
15 15  ----
16 16  
17 -= **Programming Defaults** =
18 += **Node Setup** =
18 18  
19 -ANU recommends that the SP 16HR-3C be set to a gain of 24db and no higher than 250 Hz sampling rate. The BD3C-5 should be set to a gain of 6db (maximum allowed). These are what we use for our internal experiments. **Note that this gain must be removed when exporting to miniseed, **otherwise amplitudes will be either 15.84893192 (24db) or 2 (6db) too high. We also recommend disabling bluetooth to increase battery power, and to enable "FIFO" mode just in case old data is still present on the units and you run out of space (although it is VERY unlikely you will go over 64 Gb for one deploy). If using the "timed turnon" option, please be aware that **the units will not begin recording until they have acquired a GPS lock**, which may nor occur if they are buried too deeply or have very poor sky view.
20 +Short term (~~30 day) battery powered nodes. The default gain should be 24 db for the 16HR-3C and 6 db for the BD3C-5
20 20  
21 21  
23 +~*~**this needs to be reformatted
24 +
22 22  == **Pre-Fieldwork Preparation** ==
23 23  
24 24  (% class="box infomessage" %)
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27 27  (((
28 28  **INVEST IN FAST EXTERNAL HARD DRIVES – DO NOT LET THIS BE THE LIMITATION OF DATA HARVESTING**
29 29  
30 -**Assume ~~1 Tb of storage for both raw and exported data per 50 nodes @ 250 Hz & 30 days**
33 +**Plan on 1 Tb to store ALL data for 50 nodes @ 250 Hz and a single ~~30 day occupation**
31 31  )))
32 32  )))
33 33  
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48 48  === **2- Node Placement** ===
49 49  )))
50 50  
51 -**Protection**: Place nodes inside (landfill) biodegradable bags to minimize cleaning and cross-site soil contamination.
54 +**Protection**: Place nodes inside thick, landfill biodegradable plastic bags for environmental protection.
52 52  
53 53  **Site Analysis**:
54 54  
55 -* **Take compass measurements away from the sensor as it will affect your measurement.**
58 +* Conduct compass measurements away from the node and metallic structures, adjusting for inclination angle.
56 56  * Take multiple photographs from various angles to document the site setup thoroughly.
57 57  * Include a detailed site description in your notes, specifying distances and orientations from nearby landmarks (e.g. Richards garden, Te Mini steam field eastern side)
58 58  
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59 59  === **3- GPS Considerations** ===
60 60  
61 61  (% class="wikigeneratedid" %)
62 -The GPS antenna is at the top and center of the unit, and will (usually) only receive signal with a clear sky view directly above. The signal is able to penetrate plastic and terracotta planters and a thin layer of soil, but may struggle if the soil layer is too thick. These nodes will not start recording without attaining a GPS lock and repeated attempts will excessively drain the battery.
65 +The GPS antenna is at the top and center of the unit, and will (usually) only receive signal with a clear sky view directly above. The signal is able to penetrate plastic and terracotta planters and a thin layer of soil, but may struggle if the soil layer is too thick. The BD3C will not start recording without first attaining a GPS lock.
63 63  
64 64  === **4- Visibility and Location Marking** ===
65 65  
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74 74  
75 75  * **Charging Duration**: Both types of nodes take approximately 6-8 hours to fully charge from a flat state.
76 76  * **Pre-Deployment Charging**:
77 -** Although the nodes hold their charge well, it's beneficial to give them a "top up" charge before deployment.
80 +** Although the nodes hold their charge well, it's beneficial to give them a "top up" charge right before deployment.
78 78  
79 79  * **Operational Duration**:
80 -** When recording at 250 Hz, with GPS on and Bluetooth disabled, the instruments are expected to last about 30 days per charge cycle. If they are set to run only overnight, this can be extended to 60 days.
83 +** When recording at 250 Hz, with GPS on and Bluetooth disabled, the instruments are expected to last about 30 days per charge cycle.
81 81  
82 82  * **Post-Retrieval Charging**:
83 -** After retrieval, charge the instruments to about 50-60% (indicated as "orange" level) unless they are to be immediately re-deployed.
86 +** Do not store the instruments with completely drained batteries.
87 +** After retrieval, charge the instruments to about 50-60% (indicated as "orange" level) for optimal battery health.
88 +
84 84  * **Storage and Shipping Charge Level**:
85 85  ** Maintain a battery charge level of around 50-60% for both storage and shipping purposes.
86 86  ** This charge level is recommended to prevent battery damage and is safe for transportation.
87 -** Nodes should not be stored fully charged, and it **they should especially not be stored with 0 charge.**
88 88  
89 89  === ===
90 90  
91 -(((
95 +* (((
92 92  === **6- Data Sharing and Metadata Creation** ===
93 93  )))
94 94  
95 95  **GPS Data**:
96 96  
97 -* Download the GPS file to a laptop. (???)
101 +* Download the GPS file to a laptop.
98 98  * Share this file on a drive accessible to all team members for uniform understanding of node locations.
99 99  
100 100  **Photo Sharing**:
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104 104  
105 105  **Metadata File**:
106 106  
107 -* Create and organize metadata via the ANU metadata standard (~*~*add example)
111 +* Create a metadata XML file for each node, which is essential for data organisation and future reference.
108 108  
109 109  === **7- Additional Best Practices** ===
110 110  
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172 172  **Preparation for Charging**:
173 173  
174 174  * Before charging, ensure each node is clean. This involves removing any dirt or debris to maintain the integrity of the equipment and ensure effective charging.
175 -
176 -
177 177  )))
178 178  1. (((
179 179  **Disassembling the Node**:
180 180  
181 -* For the IGU-16HR, remove the battery (bottom half) from the sensor. This is done by unscrewing the spikes counter-clockwise.
182 -
183 -
183 +* Carefully remove the battery and the spike from the sensor. This is typically done by twisting the spike part of the instrument to release these components.
184 184  )))
185 185  1. (((
186 186  **Setting Nodes in the Charging Box**:
187 187  
188 -* Place 1-16 IGU-16HR battery components upside-down into the charger, assuring they are oriented properly.
189 -
190 -
188 +* Place up to 16 nodes into the charging box, arranging them with the spikes pointing upwards. This configuration is essential for proper connection and efficient charging.
191 191  )))
192 192  1. (((
193 193  **Monitoring the Charging Process**:
194 194  
195 -* Once the nodes are set in the charging box and the charging process begins, lights adjacent to the batteries will illuminate. These lights indicate that charging is underway.
196 -* Observe the transition of the lights from steady red to orange, then to green, and finally to flashing green. A flashing green light signifies that the batteries are fully charged. For storage, the goal is to charge them to ORANGE.
197 -
198 -
193 +* Once the nodes are set in the charging box and the charging process begins, red lights adjacent to the batteries will illuminate. These lights indicate that charging is underway.
194 +* Observe the transition of the lights from steady red to orange, then to green, and finally to flashing green. A flashing green light signifies that the batteries are fully charged.
199 199  )))
200 200  1. (((
201 201  **Updating Charge Status**:
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253 253  (((
254 254  * **Ensure to export data as "COUNTS", not "mV".**
255 255  
256 -* **Set "Remove Gain" to the same decibel gain as during programming** **(by default ANU sets this to 24db (a factor of 15.848932).**
252 +* **Set "Remove Gain" to the same decibel gain as during programming (ANU usually sets this to 18 db, but double-check).**
257 257  )))
258 258  )))
259 259  
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371 371  |(% style="width:187px" %)**Frequency Band**|(% style="width:224px" %)5 Hz to 1652Hz
372 372  |(% style="width:187px" %)**Sensitivity**|(% style="width:224px" %)67.7 V/m/s
373 373  |(% style="width:187px" %)**Size (with spike)**|(% style="width:224px" %)103mm(L) × 95mm(W) × 187mm
374 -|(% style="width:187px" %)**Weight**|(% style="width:224px" %)2.4 kg
370 +|(% style="width:187px" %)**Weight**|(% style="width:224px" %)2.3 kg
375 375  |(% style="width:187px" %)**Data Storage**|(% style="width:224px" %)64 Gb
376 -|(% style="width:187px" %)**Battery**|(% style="width:224px" %)Lithium ion XXAh
372 +|(% style="width:187px" %)**Battery**|(% style="width:224px" %)Li_etc XXAh
377 377  )))
378 378  
379 379