Last modified by Xiaoling on 2024/07/31 17:46
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From version < 1.2 >
edited by Xiaoling
on 2022/05/14 10:16
To version < 22.1 >
edited by Edwin Chen
on 2023/12/22 21:40
>
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Title
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1 -Add GPS Support in LG308
1 +Add GPS Support in LG308N / LPS8v2
Author
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1 -XWiki.Xiaoling
1 +XWiki.Edwin
Content
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1 -It is possible to GPS support in LG308 EC25 version so device will add location info to uplink packet to LoRaWAN server.
1 +**Table of Contents：**
2 2  
3 -Below are the steps:
3 +{{toc/}}
4 4  
5 -Open the box and connect GPS antenna to GNSS port of EC25
6 6  
7 -[[~[~[image:https://wiki.dragino.com/images/thumb/1/19/LG308_GPS_1.png/600px-LG308_GPS_1.png~|~|height="359" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:LG308_GPS_1.png]]
6 +(((
7 += 1. Introduction =
8 8  
9 -Connect GPS antenna
9 +----
10 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.
12 +)))
11 11  
12 -modify the two files:
13 13  
15 +== 2. Connect GPS Antenna to Cellular modules ==
16 +
17 +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.
18 +
19 +**For LPS8v2:**
20 +
21 +[[image:image-20231208153214-1.png||height="426" width="590"]]
22 +
23 +
24 +**For LG308N:**
25 +
26 +[[image:image-20220527160148-2.png]]
27 +
28 +
29 += 3. Use Cellular Module GPS feature for LoRaWAN Timing. =
30 +
31 +== 3.1 Configure on LG308N / LPS8N ==
32 +
33 +(((
34 +(% style="color:blue" %)**Below are the steps:**
35 +)))
36 +
37 +(((
38 +**~1. Open the box and connect GPS antenna to GNSS port of EC25**
39 +)))
40 +
41 +**2. modify the two files:**
42 +
43 +(((
14 14  /etc/chatscripts/3g.chat
45 +)))
15 15  
16 -{{{ABORT BUSY
17 -ABORT 'NO CARRIER'
18 -ABORT ERROR
19 -REPORT CONNECT
47 +(% class="box" %)
48 +(((
49 +ABORT   BUSY
50 +ABORT   'NO CARRIER'
51 +ABORT   ERROR
52 +REPORT  CONNECT
20 20  TIMEOUT 10
21 -"" "AT&F"
22 -OK "ATE1"
23 -OK "AT+QGPS=1" --> Add this line, so EC25 module GPS will be enable when dial up
24 -OK 'AT+CGDCONT=1,"IP","$USE_APN"'
25 -SAY "Calling UMTS/GPRS"
54 +""      "AT&F"
55 +OK      "ATE1"
56 +(% style="color:red" %)**OK  "AT+QGPS=1"   ~-~-> Add this line, so EC25 module GPS will be enable when dial up**(%%)
57 +(% style="color:black" %)OK      'AT+CGDCONT=1,"IP","$USE_APN"'
58 +SAY     "Calling UMTS/GPRS"
26 26  TIMEOUT 30
27 -OK "ATD$DIALNUMBER"
60 +OK      "ATD$DIALNUMBER"
28 28  CONNECT ' '
29 -}}}
62 +)))
30 30  
31 -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
32 32  
33 -/usr/bin/generate-config.sh, after configure this, in the web page, select any frequency band and save to make this take affect.
65 +(((
66 +(% 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.**
67 +)))
34 34  
35 -{{{gen_gw_cfg() {
69 +
70 +(% class="box" %)
71 +(((
72 +(((
73 +(((
74 +gen_gw_cfg() {
36 36   json_init
37 37   json_add_object gateway_conf
38 38   json_add_string "gateway_ID" "$gwid"
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42 42   json_add_int "stat_interval" "$stat"
43 43   json_add_boolean "forward_crc_valid" 1
44 44   json_add_boolean "forward_crc_error" 0
45 - json_add_string "gps_tty_path" "/dev/ttyUSB1" -----> Add this line so lora program knows to get the gps info from EC25
46 - json_close_object
47 - json_dump > /etc/lora/local_conf.json
48 -}
49 -}}}
84 +)))
50 50  
86 +(((
87 + (% 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**
88 +)))
51 51  
52 -Reboot the device and run logread -f to verify if GPS already works.
90 +(((
91 +(% style="color:black" %) json_close_object
92 + json_dump  > /etc/lora/local_conf.json(%%)
93 +(% style="color:black" %)**}**
94 +)))
95 +)))
96 +)))
53 53  
54 -{{{Fri Mar 6 04:08:59 2020 daemon.info lora_pkt_fwd[3016]: INFO~ GPS serial port path is configured to "/dev/ttyUSB1"
55 -Fri Mar 6 04:08:59 2020 daemon.info lora_pkt_fwd[3016]: INFO~ [main] TTY port /dev/ttyUSB1 open for GPS synchronization
56 -Fri Mar 6 04:09:00 2020 cron.err crond[1689]: time disparity of 4301528 minutes detected
57 -Fri Mar 6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~ sockfd=4
58 -Fri Mar 6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~ sockfd=5
59 -Fri Mar 6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~ FPort Filter: 0
60 -Fri Mar 6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~ DevAddrMask: 0x0
61 -Fri Mar 6 04:09:34 2020 daemon.info lora_pkt_fwd[3016]: INFO: [jit] queue is empty
62 -Fri Mar 6 04:09:34 2020 daemon.info lora_pkt_fwd[3016]: STAT~ {"stat":{"time":"2020-03-06 04:09:34 UTC","lati":22.70627,"long":114.24277,"alti":58,"rxnb":0,"rxok":0,"rxfw":0,"ackr":0.0,"dwnb":0,"txnb":0}}
63 -Fri Mar 6 04:09:35 2020 daemon.info lora_pkt_fwd[3016]: INFO~ [up] PUSH_ACK received in 293 ms
64 -Fri Mar 6 04:09:35 2020 daemon.info lora_pkt_fwd[3016]: INFO~ [down] PULL_ACK received in 596 ms}}}
98 +
99 +(((
100 +**3. Reboot the device and run logread -f to verify if GPS already works.**
101 +)))
102 +
103 +(% class="box" %)
104 +(((
105 +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"**(%%)
106 +Fri Mar  6 04:08:59 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [main] TTY port /dev/ttyUSB1 open for GPS synchronization
107 +Fri Mar  6 04:09:00 2020 cron.err crond[1689]: time disparity of 4301528 minutes detected
108 +Fri Mar  6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ sockfd=4
109 +Fri Mar  6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ sockfd=5
110 +Fri Mar  6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ FPort Filter: 0
111 +Fri Mar  6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ DevAddrMask: 0x0
112 +Fri Mar  6 04:09:34 2020 daemon.info lora_pkt_fwd[3016]: INFO: [jit] queue is empty
113 +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,(%%)**
114 +(% style="color:black" %)"rxnb":0,"rxok":0,"rxfw":0,"ackr":0.0,"dwnb":0,"txnb":0}}
115 +Fri Mar  6 04:09:35 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [up] PUSH_ACK received in 293 ms
116 +Fri Mar  6 04:09:35 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [down] PULL_ACK received in 596 ms
117 +)))
118 +
119 +
120 +== 3.2. Configure on LPS8v2 ==
121 +
122 +(((
123 +(% style="color:blue" %)**Below are the steps:**
124 +)))
125 +
126 +(((
127 +**~1. Open the box and connect GPS antenna to GNSS port of EC25**
128 +)))
129 +
130 +**2. modify the two files:**
131 +
132 +/etc/rc.local
133 +
134 +(% class="box" %)
135 +(((
136 +#!/bin/sh -e
137 +#
138 +# rc.local
139 +#
140 +# This script is executed at the end of each multiuser runlevel.
141 +# Make sure that the script will "exit 0" on success or any other
142 +# value on error.
143 +#
144 +# In order to enable or disable this script just change the execution
145 +# bits.
146 +#
147 +# By default this script does nothing.
148 +
149 +echo 0 > /sys/class/leds/dragino\:blue\:opt/brightness
150 +echo 0 > /sys/class/leds/dragino\:green\:stat/brightness
151 +echo 0 > /sys/class/leds/dragino\:red\:sys/brightness
152 +(% style="color:red" %)**echo AT+QGPS=1 > /dev/ttyUSB2**
153 +
154 +
155 +exit 0
156 +)))
157 +
158 +(% style="color:red" %)**Note: **(%%) **After above settings, LPS8v2 will (% style="color:blue" %)enable GPS(%%) automatically on boot.**
159 +
160 +
161 +**The user can run (% style="color:red" %)"echo AT+QGPS=1 > /dev/ttyUSB2" (%%)to manually (% style="color:blue" %)enable GPS.(%%)**
162 +
163 +**/usr/local/dragino/generate-config.sh, after configuring this, on the web page, select any frequency band and save to make this take effect.**
164 +
165 +(% class="box" %)
166 +(((
167 +gen_gw_cfg() {
168 + json_init
169 + json_add_object gateway_conf
170 + json_add_string "platform" "SX1$chip"
171 + json_add_string "description" "Dragino LoRaWAN Gateway"
172 + json_add_string "gateway_ID" "$gwid"
173 + json_add_boolean "radiostream_enable" 1
174 + json_add_string "ghost_host" "localhost"
175 + json_add_string "ghost_port" "1760"
176 + json_add_boolean "manage_enable" 0
177 + json_add_boolean "custom_downlink" 0
178 + json_add_int "stat_interval" "30"
179 + json_add_boolean "wd_enable" 1
180 + json_add_boolean "mac_decode" 0
181 + json_add_boolean "mac2file" 0
182 + json_add_boolean "mac2db" 0
183 + json_add_string "log_mask" "1111"
184 + (% 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**(%%)
185 + json_add_double "ref_latitude" "$latitude"
186 + json_add_double "ref_longitude" "$longitude"
187 + json_add_double "ref_altitude" "$altitude"
188 + json_add_int "beacon_period" "0"
189 + json_add_int "beacon_freq_hz" "869525000"
190 +)))
191 +
192 +**3. Reboot the device and run journalctl -u draginofwd -f to verify if GPS already works.**
193 +
194 +[[image:image-20231208160114-2.png||height="288" width="907"]]
195 +
196 +
197 +[[image:image-20231208161058-5.png||height="548" width="965"]]
198 +
199 +
200 +
201 += 4. Use Cellular Module GPS feature for System Timing. =
202 +
203 +== 4.1 Configure on LPS8v2 ==
204 +
205 +This introduction shows how to use the Cellular Module GPS feature for System Timing.
206 +
207 +
208 +1. Download script from dragino site and move it to properly directory
209 +
210 +(% class="box" %)
211 +(((
212 +root@dragino-e4e891:# wget http://repo.dragino.com/release/tool/gpstime/gpstodate.sh
213 +2023-12-21 07:25:25 http://repo.dragino.com/release/tool/gpstime/gpstodate.sh
214 +Resolving repo.dragino.com (repo.dragino.com)... 47.89.8.92
215 +Connecting to repo.dragino.com (repo.dragino.com)|47.89.8.92|:80... connected.
216 +HTTP request sent, awaiting response... 200 OK
217 +Length: 1114 (1.1K) [application/octet-stream]
218 +Saving to: ‘gpstodate.sh’
219 +
220 +gpstodate.sh 100%[===========================================================================================================>] 1.09K .-KB/s in 0s     
221 +
222 +2023-12-21 07:25:25 (16.5 MB/s) - ‘gpstodate.sh’ saved [1114/1114]
223 +
224 +root@dragino-e4e891:# chmod +x gpstodate.sh;mv gpstodate.sh /usr/bin/
225 +root@dragino-e4e891:#
226 +)))
227 +
228 +2. Run **cat /dev/ttyUSB1** to check if the GPS location is successful.
229 +
230 +[[image:image-20231221153129-1.png||height="440" width="632"]]
231 +
232 +
233 +3. Run the **date** and  **/usr/bin/gpstodate.sh** **&** to check if the system time is correct
234 +
235 +
236 +4. Add **gpstodate.sh** to cron work **/etc/rc.local** , LPS8v2 will Use Cellular Module GPS feature for System Timing automatically on boot
237 +
238 +(% class="box" %)
239 +(((
240 +#!/bin/sh -e
241 +#
242 +# rc.local
243 +#
244 +# This script is executed at the end of each multiuser runlevel.
245 +# Make sure that the script will "exit 0" on success or any other
246 +# value on error.
247 +#
248 +# In order to enable or disable this script just change the execution
249 +# bits.
250 +#
251 +# By default this script does nothing.
252 +
253 +echo 0 > /sys/class/leds/dragino\:blue\:opt/brightness
254 +echo 0 > /sys/class/leds/dragino\:green\:stat/brightness
255 +echo 0 > /sys/class/leds/dragino\:red\:sys/brightness
256 +(% style="color:red" %)**echo AT+QGPS=1 > /dev/ttyUSB2**(%%)
257 +(% style="color:red" %)**/usr/bin/gpstodate.sh**
258 +
259 +exit 0
260 +)))
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