Cumulocity Official / Mbed 2 deprecated MbedSmartRestMain Featured

Official reference client implementation for Cumulocity SmartREST on u-blox C027.

Dependencies:   C027_Support C12832 LM75B MMA7660 MbedSmartRest mbed-rtos mbed

Fork of MbedSmartRestMain by Vincent Wochnik

measurement/LocationUpdate.cpp@71:063c45e99578, 2015-02-16 (annotated)

Committer:
xinlei
Date:
Mon Feb 16 09:17:30 2015 +0000
Revision:
71:063c45e99578
Parent:
58:4cc0ae5a7058
Child:
72:c5709ae7b193
Various minor bug fixes

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Cumulocity 47:89ae46d5c466 1 #include "LocationUpdate.h"
Cumulocity 49:ac0ba9d54ebc 2 #include "Aggregator.h"
Cumulocity 47:89ae46d5c466 3 #include "ComposedRecord.h"
Cumulocity 47:89ae46d5c466 4 #include "CharValue.h"
Cumulocity 47:89ae46d5c466 5 #include "IntegerValue.h"
Cumulocity 47:89ae46d5c466 6 #include "FloatValue.h"
Cumulocity 47:89ae46d5c466 7
xinlei 71:063c45e99578 8 #define THRESHOLD_PERCENT_LOC 0.05 // Percentage cut-off for avoiding sending similar acceleration sensor data.
xinlei 71:063c45e99578 9 #define TIME_LIMIT_LOC 900 // Time interval for forcing a sending even if acceleration sensor readings are constantly similar.
xinlei 71:063c45e99578 10
vwochnik 55:a0f7295ed6b6 11 LocationUpdate::LocationUpdate(AbstractSmartRest& client, SmartRestTemplate& tpl, long& deviceId, GPSTracker& gpsTracker) :
Cumulocity 47:89ae46d5c466 12 _client(client),
Cumulocity 47:89ae46d5c466 13 _tpl(tpl),
Cumulocity 47:89ae46d5c466 14 _deviceId(deviceId),
Cumulocity 47:89ae46d5c466 15 _gpsTracker(gpsTracker)
Cumulocity 47:89ae46d5c466 16 {
Cumulocity 47:89ae46d5c466 17 _init = false;
xinlei 71:063c45e99578 18 oldValues[0] = 0;
xinlei 71:063c45e99578 19 oldValues[1] = 0;
xinlei 71:063c45e99578 20 oldValues[2] = 0;
xinlei 71:063c45e99578 21 sendingTimer.start();
Cumulocity 47:89ae46d5c466 22 }
Cumulocity 47:89ae46d5c466 23
Cumulocity 47:89ae46d5c466 24 bool LocationUpdate::init()
Cumulocity 47:89ae46d5c466 25 {
Cumulocity 47:89ae46d5c466 26 if (_init)
Cumulocity 47:89ae46d5c466 27 return false;
Cumulocity 47:89ae46d5c466 28
Cumulocity 49:ac0ba9d54ebc 29 // Update device position
Cumulocity 47:89ae46d5c466 30 // USAGE: 108,<DEVICE/ID>,<ALTITUDE>,<LATITUDE>,<LONGITUDE>
Cumulocity 49:ac0ba9d54ebc 31 if (!_tpl.add("10,108,PUT,/inventory/managedObjects/%%,application/vnd.com.nsn.cumulocity.managedObject+json,application/vnd.com.nsn.cumulocity.managedObject+json,%%,UNSIGNED NUMBER NUMBER NUMBER,\"{\"\"c8y_Position\"\":{\"\"alt\"\":%%,\"\"lat\"\":%%,\"\"lng\"\":%%},\"\"c8y_MotionTracking\"\":{\"\"active\"\":true}}\"\r\n"))
Cumulocity 49:ac0ba9d54ebc 32 return false;
Cumulocity 49:ac0ba9d54ebc 33
Cumulocity 49:ac0ba9d54ebc 34 // Insert measurement
Cumulocity 49:ac0ba9d54ebc 35 // USAGE: 109,<DEVICE/ID>,<ALTITUDE>,<LATITUDE>,<LONGITUDE>
vwochnik 58:4cc0ae5a7058 36 if (!_tpl.add("10,109,POST,/event/events,application/vnd.com.nsn.cumulocity.event+json,application/vnd.com.nsn.cumulocity.event+json,%%,NOW UNSIGNED NUMBER NUMBER NUMBER,\"{\"\"time\"\":\"\"%%\"\",\"\"source\"\":{\"\"id\"\":\"\"%%\"\"},\"\"type\"\":\"\"c8y_LocationUpdate\"\",\"\"text\"\":\"\"Mbed location update\"\",\"\"c8y_Position\"\":{\"\"alt\"\":%%,\"\"lat\"\":%%,\"\"lng\"\":%%}}\"\r\n"))
Cumulocity 47:89ae46d5c466 37 return false;
Cumulocity 47:89ae46d5c466 38
Cumulocity 47:89ae46d5c466 39 _init = true;
Cumulocity 47:89ae46d5c466 40 return true;
Cumulocity 47:89ae46d5c466 41 }
Cumulocity 47:89ae46d5c466 42
Cumulocity 47:89ae46d5c466 43 bool LocationUpdate::run()
Cumulocity 47:89ae46d5c466 44 {
Cumulocity 47:89ae46d5c466 45 GPSTracker::Position position;
Cumulocity 47:89ae46d5c466 46
Cumulocity 49:ac0ba9d54ebc 47 if (!_gpsTracker.position(&position)) {
Cumulocity 49:ac0ba9d54ebc 48 puts("No GPS data available.");
Cumulocity 47:89ae46d5c466 49 return true;
Cumulocity 49:ac0ba9d54ebc 50 }
xinlei 71:063c45e99578 51 float data[3] = { 0.0, 0.0, 0.0 };
xinlei 71:063c45e99578 52 data[0] = position.altitude;
xinlei 71:063c45e99578 53 data[1] = position.latitude;
xinlei 71:063c45e99578 54 data[2] = position.longitude;
xinlei 71:063c45e99578 55 if (abs(oldValues[0]-data[0]) <= abs(oldValues[0])*THRESHOLD_PERCENT_LOC &&
xinlei 71:063c45e99578 56 abs(oldValues[1]-data[1]) <= abs(oldValues[1])*THRESHOLD_PERCENT_LOC &&
xinlei 71:063c45e99578 57 abs(oldValues[2]-data[2]) <= abs(oldValues[2])*THRESHOLD_PERCENT_LOC) {
xinlei 71:063c45e99578 58 if (sendingTimer.read() < TIME_LIMIT_LOC) {
xinlei 71:063c45e99578 59 printf("Similar location readings found, no sending!\r\n");
xinlei 71:063c45e99578 60 return true;
xinlei 71:063c45e99578 61 } else {
xinlei 71:063c45e99578 62 printf("Sending timer of location sensor timed out at %f s, a sending is forced.\r\n", sendingTimer.read());
xinlei 71:063c45e99578 63 }
xinlei 71:063c45e99578 64 }
Cumulocity 47:89ae46d5c466 65
Cumulocity 47:89ae46d5c466 66 puts("Starting measurement sending.");
Cumulocity 49:ac0ba9d54ebc 67 Aggregator aggregator;
Cumulocity 49:ac0ba9d54ebc 68 ComposedRecord record1, record2;
Cumulocity 49:ac0ba9d54ebc 69 IntegerValue msgId1(108);
Cumulocity 49:ac0ba9d54ebc 70 IntegerValue msgId2(109);
Cumulocity 47:89ae46d5c466 71 IntegerValue devId(_deviceId);
Cumulocity 49:ac0ba9d54ebc 72 FloatValue altitude(position.altitude, 2);
Cumulocity 47:89ae46d5c466 73 FloatValue latitude(position.latitude, 6);
Cumulocity 49:ac0ba9d54ebc 74 FloatValue longitude(position.longitude, 6);
Cumulocity 49:ac0ba9d54ebc 75 if ((!record1.add(msgId1)) || (!record1.add(devId)) || (!record1.add(altitude)) || (!record1.add(latitude)) || (!record1.add(longitude)))
Cumulocity 49:ac0ba9d54ebc 76 return false;
Cumulocity 49:ac0ba9d54ebc 77 if ((!record2.add(msgId2)) || (!record2.add(devId)) || (!record2.add(altitude)) || (!record2.add(latitude)) || (!record2.add(longitude)))
Cumulocity 49:ac0ba9d54ebc 78 return false;
Cumulocity 49:ac0ba9d54ebc 79 if ((!aggregator.add(record1)) || (!aggregator.add(record2)))
Cumulocity 47:89ae46d5c466 80 return false;
Cumulocity 47:89ae46d5c466 81
Cumulocity 49:ac0ba9d54ebc 82 puts("Sending GPS measurement.");
Cumulocity 49:ac0ba9d54ebc 83 if (_client.send(aggregator) != SMARTREST_SUCCESS) {
Cumulocity 47:89ae46d5c466 84 puts("Signal measurement failed.");
Cumulocity 47:89ae46d5c466 85 _client.stop();
Cumulocity 47:89ae46d5c466 86 return false;
Cumulocity 47:89ae46d5c466 87 }
Cumulocity 49:ac0ba9d54ebc 88
Cumulocity 47:89ae46d5c466 89 _client.stop();
xinlei 71:063c45e99578 90 oldValues[0] = data[0];
xinlei 71:063c45e99578 91 oldValues[1] = data[1];
xinlei 71:063c45e99578 92 oldValues[2] = data[2];
xinlei 71:063c45e99578 93 sendingTimer.reset();
xinlei 71:063c45e99578 94 printf("Location readings sent.\r\n");
Cumulocity 47:89ae46d5c466 95 return true;
Cumulocity 47:89ae46d5c466 96 }