Last modified by Xiaoling on 2024/07/31 17:46
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From version < 1.5 >
edited by Xiaoling
on 2022/05/14 10:23
To version < 20.1 >
edited by Kilight Cao
on 2023/12/21 17:57
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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.Kilight
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"]]
6 +(((
7 += 1. Introduction =
8 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.
12 +)))
13 +
14 +
15 += 2. Use Cellular Module GPS feature for LoRaWAN Timing. =
16 +
17 +== 2.1 Configure on LG308N / LPS8N ==
18 +
19 +(((
20 +(% style="color:blue" %)**Below are the steps:**
21 +)))
22 +
23 +(((
24 +**~1. Open the box and connect GPS antenna to GNSS port of EC25**
25 +)))
26 +
27 +[[image:image-20220527160148-2.png]]
28 +
9 9  Connect GPS antenna
10 10  
11 11  
12 -modify the two files:
32 +(((
33 +**2. modify the two files:**
34 +)))
13 13  
36 +(((
14 14  /etc/chatscripts/3g.chat
38 +)))
15 15  
16 16  (% class="box" %)
17 17  (((
... ... @@ -22,7 +22,7 @@
22 22  TIMEOUT 10
23 23  ""      "AT&F"
24 24  OK      "ATE1"
25 -(% style="color:red" %)OK  "AT+QGPS=1"   ~-~-> Add this line, so EC25 module GPS will be enable when dial up(%%)
49 +(% style="color:red" %)**OK  "AT+QGPS=1"   ~-~-> Add this line, so EC25 module GPS will be enable when dial up**(%%)
26 26  (% style="color:black" %)OK      'AT+CGDCONT=1,"IP","$USE_APN"'
27 27  SAY     "Calling UMTS/GPRS"
28 28  TIMEOUT 30
... ... @@ -30,12 +30,16 @@
30 30  CONNECT ' '
31 31  )))
32 32  
33 -(% style="color:red" %)Note: After above settings, the GPS will be enable when dial up, if user doesn't use Cellular for Internet access, above script won't execute, in this case, user can run "echo AT+QGPS=1 > /dev/ttyUSB2" to enable GPS
34 34  
35 -/usr/bin/generate-config.sh, after configure this, in the web page, select any frequency band and save to make this take affect.
58 +(((
59 +(% style="color:red" %)**Note: **(%%)**After above settings, the GPS will be enable when dial up, if user doesn't use Cellular for Internet access, above script won't execute, in this case, user can (% style="color:red" %)run "echo AT+QGPS=1 > /dev/ttyUSB2" (%%)to (% style="color:blue" %)enable GPS /usr/bin/generate-config.sh,(%%) after configure this, in the web page, select any frequency band and save to make this take affect.**
60 +)))
36 36  
62 +
37 37  (% class="box" %)
38 38  (((
65 +(((
66 +(((
39 39  gen_gw_cfg() {
40 40   json_init
41 41   json_add_object gateway_conf
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46 46   json_add_int "stat_interval" "$stat"
47 47   json_add_boolean "forward_crc_valid" 1
48 48   json_add_boolean "forward_crc_error" 0
49 - (% 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
50 - json_close_object
51 - json_dump  > /etc/lora/local_conf.json
52 -}
53 53  )))
54 54  
79 +(((
80 + (% 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**
81 +)))
55 55  
56 -Reboot the device and run logread -f to verify if GPS already works.
83 +(((
84 +(% style="color:black" %) json_close_object
85 + json_dump  > /etc/lora/local_conf.json(%%)
86 +(% style="color:black" %)**}**
87 +)))
88 +)))
89 +)))
57 57  
91 +
92 +(((
93 +**3. Reboot the device and run logread -f to verify if GPS already works.**
94 +)))
95 +
58 58  (% class="box" %)
59 59  (((
60 -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"
98 +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"**(%%)
61 61  Fri Mar  6 04:08:59 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [main] TTY port /dev/ttyUSB1 open for GPS synchronization
62 62  Fri Mar  6 04:09:00 2020 cron.err crond[1689]: time disparity of 4301528 minutes detected
63 63  Fri Mar  6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ sockfd=4
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65 65  Fri Mar  6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ FPort Filter: 0
66 66  Fri Mar  6 04:09:00 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ DevAddrMask: 0x0
67 67  Fri Mar  6 04:09:34 2020 daemon.info lora_pkt_fwd[3016]: INFO: [jit] queue is empty
68 -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,(%%)
106 +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,(%%)**
69 69  (% style="color:black" %)"rxnb":0,"rxok":0,"rxfw":0,"ackr":0.0,"dwnb":0,"txnb":0}}
70 70  Fri Mar  6 04:09:35 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [up] PUSH_ACK received in 293 ms
71 71  Fri Mar  6 04:09:35 2020 daemon.info lora_pkt_fwd[3016]: INFO~~ [down] PULL_ACK received in 596 ms
72 72  )))
111 +
112 +
113 +== 2.2. Configure on LPS8v2 ==
114 +
115 +(((
116 +(% style="color:blue" %)**Below are the steps:**
117 +)))
118 +
119 +(((
120 +**~1. Open the box and connect GPS antenna to GNSS port of EC25**
121 +)))
122 +
123 +[[image:image-20231208153214-1.png||height="426" width="590"]]
124 +
125 +Connect GPS antenna
126 +
127 +
128 +**2. modify the two files:**
129 +
130 +/etc/rc.local
131 +
132 +(% class="box" %)
133 +(((
134 +#!/bin/sh -e
135 +#
136 +# rc.local
137 +#
138 +# This script is executed at the end of each multiuser runlevel.
139 +# Make sure that the script will "exit 0" on success or any other
140 +# value on error.
141 +#
142 +# In order to enable or disable this script just change the execution
143 +# bits.
144 +#
145 +# By default this script does nothing.
146 +
147 +echo 0 > /sys/class/leds/dragino\:blue\:opt/brightness
148 +echo 0 > /sys/class/leds/dragino\:green\:stat/brightness
149 +echo 0 > /sys/class/leds/dragino\:red\:sys/brightness
150 +(% style="color:red" %)**echo AT+QGPS=1 > /dev/ttyUSB2**
151 +
152 +
153 +exit 0
154 +)))
155 +
156 +(% style="color:red" %)**Note: **(%%) **After above settings, LPS8v2 will (% style="color:blue" %)enable GPS(%%) automatically on boot.**
157 +
158 +
159 +**The user can run (% style="color:red" %)"echo AT+QGPS=1 > /dev/ttyUSB2" (%%)to manually (% style="color:blue" %)enable GPS.(%%)**
160 +
161 +**/usr/local/dragino/generate-config.sh, after configuring this, on the web page, select any frequency band and save to make this take effect.**
162 +
163 +(% class="box" %)
164 +(((
165 +gen_gw_cfg() {
166 + json_init
167 + json_add_object gateway_conf
168 + json_add_string "platform" "SX1$chip"
169 + json_add_string "description" "Dragino LoRaWAN Gateway"
170 + json_add_string "gateway_ID" "$gwid"
171 + json_add_boolean "radiostream_enable" 1
172 + json_add_string "ghost_host" "localhost"
173 + json_add_string "ghost_port" "1760"
174 + json_add_boolean "manage_enable" 0
175 + json_add_boolean "custom_downlink" 0
176 + json_add_int "stat_interval" "30"
177 + json_add_boolean "wd_enable" 1
178 + json_add_boolean "mac_decode" 0
179 + json_add_boolean "mac2file" 0
180 + json_add_boolean "mac2db" 0
181 + json_add_string "log_mask" "1111"
182 + (% 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**(%%)
183 + json_add_double "ref_latitude" "$latitude"
184 + json_add_double "ref_longitude" "$longitude"
185 + json_add_double "ref_altitude" "$altitude"
186 + json_add_int "beacon_period" "0"
187 + json_add_int "beacon_freq_hz" "869525000"
188 +)))
189 +
190 +**3. Reboot the device and run journalctl -u draginofwd -f to verify if GPS already works.**
191 +
192 +[[image:image-20231208160114-2.png||height="288" width="907"]]
193 +
194 +
195 +[[image:image-20231208161058-5.png||height="548" width="965"]]
196 +
197 +
198 +
199 += 3. Use Cellular Module GPS feature for System Timing. =
200 +
201 +== 3.1 Configure on LPS8v2 ==
202 +
203 +This introduction shows how to use the Cellular Module GPS feature for System Timing.
204 +
205 +
206 +1. Download script from dragino site and move it to properly directory
207 +
208 +(% class="box infomessage" %)
209 +(((
210 +root@dragino-e4e891:# wget http://repo.dragino.com/release/tool/gpstime/gpstodate.sh
211 +2023-12-21 07:25:25 http://repo.dragino.com/release/tool/gpstime/gpstodate.sh
212 +Resolving repo.dragino.com (repo.dragino.com)... 47.89.8.92
213 +Connecting to repo.dragino.com (repo.dragino.com)|47.89.8.92|:80... connected.
214 +HTTP request sent, awaiting response... 200 OK
215 +Length: 1114 (1.1K) [application/octet-stream]
216 +Saving to: ‘gpstodate.sh’
217 +
218 +gpstodate.sh 100%[===========================================================================================================>] 1.09K .-KB/s in 0s     
219 +
220 +2023-12-21 07:25:25 (16.5 MB/s) - ‘gpstodate.sh’ saved [1114/1114]
221 +
222 +root@dragino-e4e891:# chmod +x gpstodate.sh;mv gpstodate.sh /usr/bin/
223 +root@dragino-e4e891:#
224 +)))
225 +
226 +2. Run **cat /dev/ttyUSB1** to check if the GPS location is successful.
227 +
228 +[[image:image-20231221153129-1.png||height="440" width="632"]]
229 +
230 +
231 +3. Run the **date** and  **/usr/bin/gpstodate.sh** **&** to check if the system time is correct
232 +
233 +
234 +
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