Last modified by Xiaoling on 2024/07/31 17:46
<
From version < 2.1 >
edited by Xiaoling
on 2022/05/27 16:01
To version < 25.1
edited by Xiaoling
on 2024/07/31 17:46
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Title
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1 -Add GPS Support in LG308
1 +Add GPS Support in LG308N / LPS8v2
Content
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1 -(((
2 -It is possible to GPS support in LG308 EC25 version so device will add location info to uplink packet to LoRaWAN server.
3 -)))
1 +**Table of Contents：**
4 4  
5 -(((
6 -Below are the steps:
7 -)))
3 +{{toc/}}
8 8  
5 +
9 9  (((
10 -Open the box and connect GPS antenna to GNSS port of EC25
7 += 1. Introduction =
8 +
9 +----
10 +
11 +It is possible to GPS supports in LG308N-EC25 version and LPS8v2-EC25 version so device will add location info to uplink packet to LoRaWAN server.
11 11  )))
12 12  
13 -[[image:https://wiki.dragino.com/images/thumb/1/19/LG308_GPS_1.png/600px-LG308_GPS_1.png||height="359" width="600"]]
14 14  
15 -Connect GPS antenna
15 += 2. Connect GPS Antenna to Cellular modules =
16 16  
17 +
18 +Connect GNSS port to GPS antenna. The connector type is i-pex connector, please make sure the GPS antenna can be extended outdoor for GPS signal.
19 +
20 +**For LPS8v2:**
21 +
22 +[[image:image-20231208153214-1.png||height="426" width="590"]]
23 +
24 +
25 +**For LG308N:**
26 +
27 +[[image:image-20220527160148-2.png]]
28 +
29 +
30 += 3. Use Cellular Module GPS feature for LoRaWAN Timing. =
31 +
32 +== 3.1 Configure on LG308N / LPS8N ==
33 +
17 17  (((
18 -modify the two files:
35 +
36 +
37 +(% style="color:blue" %)**Below are the steps:**
19 19  )))
20 20  
21 21  (((
41 +**~1. Open the box and connect GPS antenna to GNSS port of EC25**
42 +)))
43 +
44 +**2. modify the two files:**
45 +
46 +(((
22 22  /etc/chatscripts/3g.chat
23 23  )))
24 24  
... ... @@ -31,7 +31,7 @@
31 31  TIMEOUT 10
32 32  ""      "AT&F"
33 33  OK      "ATE1"
34 -(% style="color:red" %)OK  "AT+QGPS=1"   ~-~-> Add this line, so EC25 module GPS will be enable when dial up(%%)
59 +(% style="color:red" %)**OK  "AT+QGPS=1"   ~-~-> Add this line, so EC25 module GPS will be enable when dial up**(%%)
35 35  (% style="color:black" %)OK      'AT+CGDCONT=1,"IP","$USE_APN"'
36 36  SAY     "Calling UMTS/GPRS"
37 37  TIMEOUT 30
... ... @@ -39,17 +39,16 @@
39 39  CONNECT ' '
40 40  )))
41 41  
42 -(((
43 -(% style="color:red" %)Note: After above settings, the GPS will be enable when dial up, if user doesn't use Cellular for Internet access, above script won't execute, in this case, user can run "echo AT+QGPS=1 > /dev/ttyUSB2" to enable GPS
44 -)))
45 45  
46 46  (((
47 -/usr/bin/generate-config.sh, after configure this, in the web page, select any frequency band and save to make this take affect.
69 +(% style="color:red" %)**Note: **(%%)**After above settings, the GPS will be enable when dial up, if user doesn't use Cellular for Internet access, above script won't execute, in this case, user can (% style="color:red" %)run "echo AT+QGPS=1 > /dev/ttyUSB2" (%%)to (% style="color:blue" %)enable GPS /usr/bin/generate-config.sh,(%%) after configure this, in the web page, select any frequency band and save to make this take affect.**
48 48  )))
49 49  
72 +
50 50  (% class="box" %)
51 51  (((
52 52  (((
76 +(((
53 53  gen_gw_cfg() {
54 54   json_init
55 55   json_add_object gateway_conf
... ... @@ -60,20 +60,28 @@
60 60   json_add_int "stat_interval" "$stat"
61 61   json_add_boolean "forward_crc_valid" 1
62 62   json_add_boolean "forward_crc_error" 0
63 - (% style="color:red" %)json_add_string "gps_tty_path" "/dev/ttyUSB1"   ~-~-~-~--> Add this line so lora program knows to get the gps info from EC25(%%)
87 +)))
88 +
89 +(((
90 + (% style="color:red" %)**json_add_string "gps_tty_path" "/dev/ttyUSB1"   ~-~-~-~--> Add this line so lora program knows to get the gps info from EC25**
91 +)))
92 +
93 +(((
64 64  (% style="color:black" %) json_close_object
65 - json_dump  > /etc/lora/local_conf.json
66 -}
95 + json_dump  > /etc/lora/local_conf.json(%%)
96 +(% style="color:black" %)**}**
67 67  )))
68 68  )))
99 +)))
69 69  
101 +
70 70  (((
71 -Reboot the device and run logread -f to verify if GPS already works.
103 +**3. Reboot the device and run logread -f to verify if GPS already works.**
72 72  )))
73 73  
74 74  (% class="box" %)
75 75  (((
76 -Fri Mar  6 04:08:59 2020 daemon.info lora_pkt_fwd[3016]: ~(% style="color:red" %)INFO~~ GPS serial port path is configured to "/dev/ttyUSB1"
108 +Fri Mar  6 04:08:59 2020 daemon.info lora_pkt_fwd[3016]: (% style="color:red" %)**INFO~~ GPS serial port path is configured to "/dev/ttyUSB1"**(%%)
77 77  Fri Mar  6 04:08:59 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [main] TTY port /dev/ttyUSB1 open for GPS synchronization
78 78  Fri Mar  6 04:09:00 2020 cron.err crond[1689]: time disparity of 4301528 minutes detected
79 79  Fri Mar  6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ sockfd=4
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81 81  Fri Mar  6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ FPort Filter: 0
82 82  Fri Mar  6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ DevAddrMask: 0x0
83 83  Fri Mar  6 04:09:34 2020 daemon.info lora_pkt_fwd[3016]: INFO: [jit] queue is empty
84 -Fri Mar  6 04:09:34 2020 daemon.info lora_pkt_fwd[3016]: STAT~~ {"stat":{"time":"2020-03-06 04:09:34 UTC",(% style="color:red" %)"lati":22.70627,"long":114.24277,"alti":58,(%%)
116 +Fri Mar  6 04:09:34 2020 daemon.info lora_pkt_fwd[3016]: STAT~~ {"stat":{"time":"2020-03-06 04:09:34 UTC"**,(% style="color:red" %)"lati":22.70627,"long":114.24277,"alti":58,(%%)**
85 85  (% style="color:black" %)"rxnb":0,"rxok":0,"rxfw":0,"ackr":0.0,"dwnb":0,"txnb":0}}
86 86  Fri Mar  6 04:09:35 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [up] PUSH_ACK received in 293 ms
87 87  Fri Mar  6 04:09:35 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [down] PULL_ACK received in 596 ms
88 88  )))
121 +
122 +
123 +== 3.2. Configure on LPS8v2 ==
124 +
125 +(((
126 +
127 +
128 +(% style="color:blue" %)**Below are the steps:**
129 +)))
130 +
131 +(((
132 +**~1. Open the box and connect GPS antenna to GNSS port of EC25**
133 +)))
134 +
135 +**2. modify the two files:**
136 +
137 +/etc/rc.local
138 +
139 +(% class="box" %)
140 +(((
141 +#!/bin/sh -e
142 +#
143 +# rc.local
144 +#
145 +# This script is executed at the end of each multiuser runlevel.
146 +# Make sure that the script will "exit 0" on success or any other
147 +# value on error.
148 +#
149 +# In order to enable or disable this script just change the execution
150 +# bits.
151 +#
152 +# By default this script does nothing.
153 +
154 +echo 0 > /sys/class/leds/dragino\:blue\:opt/brightness
155 +echo 0 > /sys/class/leds/dragino\:green\:stat/brightness
156 +echo 0 > /sys/class/leds/dragino\:red\:sys/brightness
157 +(% style="color:red" %)**echo AT+QGPS=1 > /dev/ttyUSB2**
158 +
159 +
160 +exit 0
161 +)))
162 +
163 +(% style="color:red" %)**Note: **(%%) **After above settings, LPS8v2 will (% style="color:blue" %)enable GPS(%%) automatically on boot.**
164 +
165 +
166 +**The user can run (% style="color:red" %)"echo AT+QGPS=1 > /dev/ttyUSB2" (%%)to manually (% style="color:blue" %)enable GPS.(%%)**
167 +
168 +**/usr/local/dragino/generate-config.sh, after configuring this, on the web page, select any frequency band and save to make this take effect.**
169 +
170 +(% class="box" %)
171 +(((
172 +gen_gw_cfg() {
173 + json_init
174 + json_add_object gateway_conf
175 + json_add_string "platform" "SX1$chip"
176 + json_add_string "description" "Dragino LoRaWAN Gateway"
177 + json_add_string "gateway_ID" "$gwid"
178 + json_add_boolean "radiostream_enable" 1
179 + json_add_string "ghost_host" "localhost"
180 + json_add_string "ghost_port" "1760"
181 + json_add_boolean "manage_enable" 0
182 + json_add_boolean "custom_downlink" 0
183 + json_add_int "stat_interval" "30"
184 + json_add_boolean "wd_enable" 1
185 + json_add_boolean "mac_decode" 0
186 + json_add_boolean "mac2file" 0
187 + json_add_boolean "mac2db" 0
188 + json_add_string "log_mask" "1111"
189 + (% style="color:red" %)**json_add_string "gps_tty_path" "/dev/ttyUSB1"   ~-~-~-~--> Add this line so lora program knows to get the gps info from EC25**(%%)
190 + json_add_double "ref_latitude" "$latitude"
191 + json_add_double "ref_longitude" "$longitude"
192 + json_add_double "ref_altitude" "$altitude"
193 + json_add_int "beacon_period" "0"
194 + json_add_int "beacon_freq_hz" "869525000"
195 +)))
196 +
197 +**3. Reboot the device and run journalctl -u draginofwd -f to verify if GPS already works.**
198 +
199 +[[image:image-20231208160114-2.png||height="288" width="907"]]
200 +
201 +
202 +[[image:image-20231208161058-5.png||height="548" width="965"]]
203 +
204 +
205 += 4. Use Cellular Module GPS feature for System Timing. =
206 +
207 +== 4.1 Configure on LPS8v2 ==
208 +
209 +
210 +This introduction shows how to use the Cellular Module GPS feature for System Timing.
211 +
212 +
213 +1. Download script from dragino site and move it to properly directory
214 +
215 +(% class="box" %)
216 +(((
217 +root@dragino-e4e891:# wget http://repo.dragino.com/release/tool/gpstime/gpstodate.sh
218 +2023-12-21 07:25:25 http://repo.dragino.com/release/tool/gpstime/gpstodate.sh
219 +Resolving repo.dragino.com (repo.dragino.com)... 47.89.8.92
220 +Connecting to repo.dragino.com (repo.dragino.com)|47.89.8.92|:80... connected.
221 +HTTP request sent, awaiting response... 200 OK
222 +Length: 1114 (1.1K) [application/octet-stream]
223 +Saving to: ‘gpstodate.sh’
224 +
225 +gpstodate.sh 100%[===========================================================================================================>] 1.09K .-KB/s in 0s     
226 +
227 +2023-12-21 07:25:25 (16.5 MB/s) - ‘gpstodate.sh’ saved [1114/1114]
228 +
229 +root@dragino-e4e891:# chmod +x gpstodate.sh;mv gpstodate.sh /usr/bin/
230 +root@dragino-e4e891:#
231 +)))
232 +
233 +2. Run **cat /dev/ttyUSB1** to check if the GPS location is successful.
234 +
235 +[[image:image-20231221153129-1.png||height="440" width="632"]]
236 +
237 +
238 +3. Run the **date** and  **/usr/bin/gpstodate.sh** **&** to check if the system time is correct
239 +
240 +
241 +4. Add **gpstodate.sh** to cron work **/etc/rc.local** , LPS8v2 will Use Cellular Module GPS feature for System Timing automatically on boot
242 +
243 +(% class="box" %)
244 +(((
245 +#!/bin/sh -e
246 +#
247 +# rc.local
248 +#
249 +# This script is executed at the end of each multiuser runlevel.
250 +# Make sure that the script will "exit 0" on success or any other
251 +# value on error.
252 +#
253 +# In order to enable or disable this script just change the execution
254 +# bits.
255 +#
256 +# By default this script does nothing.
257 +
258 +echo 0 > /sys/class/leds/dragino\:blue\:opt/brightness
259 +echo 0 > /sys/class/leds/dragino\:green\:stat/brightness
260 +echo 0 > /sys/class/leds/dragino\:red\:sys/brightness
261 +(% style="color:red" %)**echo AT+QGPS=1 > /dev/ttyUSB2**(%%)
262 +(% style="color:red" %)**/usr/bin/gpstodate.sh**
263 +
264 +exit 0
265 +)))
266 +
267 +
268 += 5. Use external GPS module =
269 +
270 +
271 +
272 +== 5.1 Set up for LoRaWAN Time ==
273 +
274 +== 5.2 Set up for System Time ==
275 +
276 +
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