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+-- LuaTools需要PROJECT和VERSION这两个信息
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+PROJECT = "gnss"
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+VERSION = "1.0.0"
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+
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+--[[
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+本demo是演示定位数据处理的. script/turnkey目录有更完整的应用.
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+本demo需要V1103及以上的固件!!
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+注意: 室内无信号!! 无法定位!!! 到室外去, 起码天线要在室外.
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+窗口只有少许信号, 无法保证定位成功
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+
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+这个demo需要的流量很多,可以注释这行
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+sys.publish("mqtt_pub", "/gnss/" .. mobile.imei() .. "/up/nmea", data, 1)
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+]]
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+
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+-- sys库是标配
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+local sys = require("sys")
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+require("sysplus")
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+
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+local gps_uart_id = 2
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+local mqttc = nil
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+
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+libgnss.clear() -- 清空数据,兼初始化
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+
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+uart.setup(gps_uart_id, 9600)
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+
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+function exec_agnss()
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+ if http then
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+ -- AGNSS 已调通
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+ while 1 do
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+ local code, headers, body = http.request("GET", "http://download.openluat.com/9501-xingli/CASIC_data.dat").wait()
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+ -- local code, headers, body = http.request("GET", "http://nutzam.com/6228.bin").wait()
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+ log.info("gnss", "AGNSS", code, body and #body or 0)
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+ if code == 200 and body and #body > 1024 then
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+ -- uart.write(gps_uart_id, "$reset,0,h01\r\n")
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+ -- sys.wait(200)
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+ -- uart.write(gps_uart_id, body)
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+ for offset=1,#body,512 do
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+ log.info("gnss", "AGNSS", "write >>>", #body:sub(offset, offset + 511))
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+ uart.write(gps_uart_id, body:sub(offset, offset + 511))
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+ -- sys.waitUntil("UART2_SEND", 100)
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+ sys.wait(100) -- 等100ms反而更成功
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+ end
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+ -- sys.waitUntil("UART2_SEND", 1000)
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+ io.writeFile("/6228.bin", body)
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+ break
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+ end
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+ sys.wait(60*1000)
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+ end
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+ end
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+ sys.wait(20)
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+ -- "$AIDTIME,year,month,day,hour,minute,second,millisecond"
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+ local date = os.date("!*t")
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+ if date.year > 2022 then
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+ local str = string.format("$AIDTIME,%d,%d,%d,%d,%d,%d,000",
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+ date["year"], date["month"], date["day"], date["hour"], date["min"], date["sec"])
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+ log.info("gnss", str)
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+ uart.write(gps_uart_id, str .. "\r\n")
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+ sys.wait(20)
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+ end
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+ -- 读取之前的位置信息
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+ local gnssloc = io.readFile("/gnssloc")
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+ if gnssloc then
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+ str = "$AIDPOS," .. gnssloc
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+ log.info("POS", str)
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+ uart.write(gps_uart_id, str .. "\r\n")
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+ str = nil
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+ gnssloc = nil
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+ else
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+ -- TODO 发起基站定位
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+ uart.write(gps_uart_id, "$AIDPOS,3432.70,N,10885.25,E,1.0\r\n")
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+ end
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+end
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+
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+function upload_stat()
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+ if mqttc == nil or not mqttc:ready() then return end
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+ local stat = {
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+ csq = mobile.csq(),
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+ rssi = mobile.rssi(),
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+ rsrq = mobile.rsrq(),
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+ rsrp = mobile.rsrp(),
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+ --iccid = mobile.iccid(),
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+ snr = mobile.snr()
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+ }
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+ sys.publish("mqtt_pub", "/gnss/" .. mobile.imei() .. "/up/stat", (json.encode(stat)), 1)
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+end
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+
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+sys.timerLoopStart(upload_stat, 60*1000)
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+
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+sys.taskInit(function()
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+ -- Air780EG工程样品的GPS的默认波特率是9600, 量产版是115200,以下是临时代码
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+ log.info("GPS", "start")
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+ pm.power(pm.GPS, true)
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+ -- 绑定uart,底层自动处理GNSS数据
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+ -- 第二个参数是转发到虚拟UART, 方便上位机分析
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+ libgnss.bind(gps_uart_id, uart.VUART_0)
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+ libgnss.on("raw", function(data)
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+ -- 默认不上报, 需要的话自行打开
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+ data = data:split("\r\n")
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+ if data == nil then
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+ return
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+ end
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+ for k, v in pairs(data) do
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+ if v and v:startsWith("$GNRMC") then
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+ sys.publish("mqtt_pub", "/gnss/" .. mobile.imei() .. "/up/nmea", v, 0)
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+ end
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+ end
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+ end)
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+ sys.wait(200) -- GPNSS芯片启动需要时间
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+ -- 调试日志,可选
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+ libgnss.debug(true)
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+ -- 显示串口配置
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+ -- uart.write(gps_uart_id, "$CFGPRT,1\r\n")
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+ -- sys.wait(20)
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+ -- 增加显示的语句
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+ uart.write(gps_uart_id, "$CFGMSG,0,1,1\r\n") -- GLL
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+ sys.wait(20)
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+ uart.write(gps_uart_id, "$CFGMSG,0,5,1\r\n") -- VTG
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+ sys.wait(20)
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+ uart.write(gps_uart_id, "$CFGMSG,0,6,1\r\n") -- ZDA
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+ sys.wait(20)
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+ -- 定位成功后,使用GNSS时间设置RTC, 暂不可用
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+ -- libgnss.rtcAuto(true)
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+ exec_agnss()
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+end)
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+
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+sys.taskInit(function()
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+ while 1 do
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+ sys.wait(5000)
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+ -- 6228CI, 查询产品信息, 可选
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+ -- uart.write(gps_uart_id, "$PDTINFO,*62\r\n")
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+ -- uart.write(gps_uart_id, "$AIDINFO\r\n")
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+ -- sys.wait(100)
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+
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+ -- uart.write(gps_uart_id, "$CFGSYS\r\n")
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+ -- uart.write(gps_uart_id, "$CFGMSG,6,4\r\n")
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+ log.info("RMC", json.encode(libgnss.getRmc(2) or {}))
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+ -- log.info("GGA", libgnss.getGga(3))
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+ -- log.info("GLL", json.encode(libgnss.getGll(2) or {}))
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+ -- log.info("GSA", json.encode(libgnss.getGsa(2) or {}))
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+ -- log.info("GSV", json.encode(libgnss.getGsv(2) or {}))
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+ -- log.info("VTG", json.encode(libgnss.getVtg(2) or {}))
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+ -- log.info("ZDA", json.encode(libgnss.getZda(2) or {}))
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+ -- log.info("date", os.date())
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+ log.info("sys", rtos.meminfo("sys"))
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+ log.info("lua", rtos.meminfo("lua"))
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+ end
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+end)
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+
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+-- 订阅GNSS状态编码
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+sys.subscribe("GNSS_STATE", function(event, ticks)
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+ -- event取值有
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+ -- FIXED 定位成功
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+ -- LOSE 定位丢失
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+ -- ticks是事件发生的时间,一般可以忽略
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+ log.info("gnss", "state", event, ticks)
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+ if event == "FIXED" then
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+ local locStr = libgnss.locStr()
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+ log.info("gnss", "locStr", locStr)
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+ if locStr then
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+ io.writeFile("/gnssloc", locStr)
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+ end
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+ end
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+end)
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+
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+-- mqtt 上传任务
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+sys.taskInit(function()
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+ sys.waitUntil("IP_READY", 15000)
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+
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+ mqttc = mqtt.create(nil, "lbsmqtt.airm2m.com", 1886) --mqtt客户端创建
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+
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+ mqttc:auth(mobile.imei(), mobile.imei(), mobile.muid()) --mqtt三元组配置
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+ log.info("mqtt", mobile.imei(), mobile.imei(), mobile.muid())
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+ mqttc:keepalive(30) -- 默认值240s
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+ mqttc:autoreconn(true, 3000) -- 自动重连机制
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+
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+ mqttc:on(function(mqtt_client, event, data, payload) --mqtt回调注册
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+ -- 用户自定义代码,按event处理
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+ --log.info("mqtt", "event", event, mqtt_client, data, payload)
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+ if event == "conack" then -- mqtt成功完成鉴权后的消息
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+ sys.publish("mqtt_conack") -- 小写字母的topic均为自定义topic
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+ -- 订阅不是必须的,但一般会有
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+ mqtt_client:subscribe("/gnss/" .. mobile.imei() .. "/down/#")
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+ elseif event == "recv" then -- 服务器下发的数据
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+ log.info("mqtt", "downlink", "topic", data, "payload", payload)
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+ -- 这里继续加自定义的业务处理逻辑
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+ elseif event == "sent" then -- publish成功后的事件
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+ log.info("mqtt", "sent", "pkgid", data)
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+ end
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+ end)
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+
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+ -- 发起连接之后,mqtt库会自动维护链接,若连接断开,默认会自动重连
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+ mqttc:connect()
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+ sys.waitUntil("mqtt_conack")
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+ log.info("mqtt连接成功")
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+ sys.timerStart(upload_stat, 1000) -- 一秒后主动上传一次
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+ while true do
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+ -- 业务演示。等待其他task发过来的待上报数据
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+ -- 这里的mqtt_pub字符串是自定义的,与mqtt库没有直接联系
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+ -- 若不需要异步关闭mqtt链接,while内的代码可以替换成sys.wait(30000)
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+ local ret, topic, data, qos = sys.waitUntil("mqtt_pub", 30000)
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+ if ret then
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+ if topic == "close" then break end
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+ log.info("mqtt", "publish", "topic", topic)
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+ mqttc:publish(topic, data, qos)
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+ end
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+ end
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+ mqttc:close()
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+ mqttc = nil
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+end)
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+
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+sys.taskInit(function()
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+ while 1 do
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+ sys.wait(3600*1000) -- 一小时检查一次
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+ local fixed, time_fixed = libgnss.isFix()
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+ if not fixed then
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+ exec_agnss()
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+ end
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+ end
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+end)
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+
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+sys.timerLoopStart(function()
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+ upload_stat()
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+end, 60000)
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+
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+-- sys.subscribe("NTP_UPDATE", function()
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+-- if not libgnss.isFix() then
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+-- -- "$AIDTIME,year,month,day,hour,minute,second,millisecond"
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+-- local date = os.date("!*t")
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+-- local str = string.format("$AIDTIME,%d,%d,%d,%d,%d,%d,000",
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+-- date["year"], date["month"], date["day"], date["hour"], date["min"], date["sec"])
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+-- log.info("gnss", str)
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+-- uart.write(gps_uart_id, str .. "\r\n")
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+-- end
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+-- end)
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+
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+-- if socket and socket.sntp then
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+-- sys.subscribe("IP_READY", function()
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+-- socket.sntp()
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+-- end)
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+-- end
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+
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+-- 用户代码已结束---------------------------------------------
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+-- 结尾总是这一句
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+sys.run()
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+-- sys.run()之后后面不要加任何语句!!!!!
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