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/SignalQualityMeasurement.cpp@96:5dfdc8568e9f, 2015-04-27 (annotated)

Committer:
xinlei
Date:
Mon Apr 27 10:50:21 2015 +0000
Revision:
96:5dfdc8568e9f
Parent:
94:61d44636f020
Child:
100:47ea098f8a47
LCDDisplay now is singleton

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Cumulocity 41:804f6a0bda26 1 #include "SignalQualityMeasurement.h"
Cumulocity 41:804f6a0bda26 2 #include "ComposedRecord.h"
Cumulocity 41:804f6a0bda26 3 #include "CharValue.h"
Cumulocity 41:804f6a0bda26 4 #include "IntegerValue.h"
Cumulocity 41:804f6a0bda26 5 #include "FloatValue.h"
xinlei 96:5dfdc8568e9f 6 #include "LCDDisplay.h"
xinlei 72:c5709ae7b193 7 #include "logging.h"
Cumulocity 41:804f6a0bda26 8
xinlei 82:ca7430f50b2b 9 #define THRESHOLD_PERCENT_SIG 0.06 // Percentage cut-off for avoiding sending similar signal sensor data.
xinlei 73:313975bfec96 10 // Time interval for forcing a sending even if analog sensor readings are constantly similar (in seconds).
xinlei 73:313975bfec96 11 #define TIME_LIMIT_SIG 900
xinlei 71:063c45e99578 12
xinlei 93:0acd11870c6a 13 SignalQualityMeasurement::SignalQualityMeasurement(AbstractSmartRest& client,
xinlei 96:5dfdc8568e9f 14 SmartRestTemplate& tpl, long& deviceId, DeviceInfo& deviceInfo) :
xinlei 74:ca3001991fdc 15 _deviceId(deviceId),
Cumulocity 41:804f6a0bda26 16 _tpl(tpl),
xinlei 74:ca3001991fdc 17 _client(client),
xinlei 96:5dfdc8568e9f 18 _deviceInfo(deviceInfo)
Cumulocity 41:804f6a0bda26 19 {
Cumulocity 41:804f6a0bda26 20 _init = false;
xinlei 71:063c45e99578 21 oldValues[0] = 0;
xinlei 71:063c45e99578 22 oldValues[1] = 0;
xinlei 94:61d44636f020 23 t_start = time(NULL);
Cumulocity 41:804f6a0bda26 24 }
Cumulocity 41:804f6a0bda26 25
Cumulocity 41:804f6a0bda26 26 bool SignalQualityMeasurement::init()
Cumulocity 41:804f6a0bda26 27 {
Cumulocity 41:804f6a0bda26 28 if (_init)
Cumulocity 41:804f6a0bda26 29 return false;
Cumulocity 41:804f6a0bda26 30
Cumulocity 41:804f6a0bda26 31 // Insert measurement
Cumulocity 41:804f6a0bda26 32 // USAGE: 104,<DEVICE/ID>,<RSSI>,<BER>
Cumulocity 41:804f6a0bda26 33 if (!_tpl.add("10,104,POST,/measurement/measurements,application/vnd.com.nsn.cumulocity.measurement+json,application/vnd.com.nsn.cumulocity.measurement+json,%%,NOW UNSIGNED NUMBER UNSIGNED,\"{\"\"time\"\":\"\"%%\"\",\"\"source\"\":{\"\"id\"\":\"\"%%\"\"},\"\"type\"\":\"\"c8y_SignalStrength\"\",\"\"c8y_SignalStrength\"\":{\"\"rssi\"\":{\"\"value\"\":%%,\"\"unit\"\":\"\"dBm\"\"},\"\"ber\"\":{\"\"value\"\":%%,\"\"unit\"\":\"\"%\"\"}}}\"\r\n"))
Cumulocity 41:804f6a0bda26 34 return false;
Cumulocity 41:804f6a0bda26 35
Cumulocity 41:804f6a0bda26 36 _init = true;
Cumulocity 41:804f6a0bda26 37 return true;
Cumulocity 41:804f6a0bda26 38 }
Cumulocity 41:804f6a0bda26 39
Cumulocity 41:804f6a0bda26 40 bool SignalQualityMeasurement::run()
Cumulocity 41:804f6a0bda26 41 {
xinlei 86:b49c4cfecc43 42 static char signal[25] = {0};
xinlei 93:0acd11870c6a 43 DeviceInfo::SignalQuality *signalQuality;
Cumulocity 41:804f6a0bda26 44 if ((signalQuality = _deviceInfo.signalQuality()) == NULL)
Cumulocity 41:804f6a0bda26 45 return false;
xinlei 86:b49c4cfecc43 46 if (signalQuality && signalQuality->rssi)
xinlei 86:b49c4cfecc43 47 snprintf(signal, sizeof(signal), "Network: %d dBm", signalQuality->rssi);
xinlei 86:b49c4cfecc43 48 else
xinlei 86:b49c4cfecc43 49 strncpy(signal, "Network: no coverage", sizeof(signal));
xinlei 96:5dfdc8568e9f 50 if (strcmp(LCDDisplay::inst().getSecondLine(), signal)) {
xinlei 96:5dfdc8568e9f 51 LCDDisplay::inst().setSecondLine(signal);
xinlei 93:0acd11870c6a 52 }
xinlei 77:f6717e4eccc4 53
xinlei 77:f6717e4eccc4 54 int data[2] = {signalQuality->rssi, signalQuality->ber};
xinlei 71:063c45e99578 55 if (abs(oldValues[0]-data[0]) <= abs(oldValues[0])*THRESHOLD_PERCENT_SIG &&
xinlei 71:063c45e99578 56 abs(oldValues[1]-data[1]) <= abs(oldValues[1])*THRESHOLD_PERCENT_SIG) {
xinlei 94:61d44636f020 57 time_t t_interval = time(NULL) - t_start;
xinlei 94:61d44636f020 58 if (t_interval < TIME_LIMIT_SIG) {
xinlei 96:5dfdc8568e9f 59 if (strcmp(LCDDisplay::inst().getThirdLine(), "")) {
xinlei 96:5dfdc8568e9f 60 LCDDisplay::inst().setThirdLine("");
xinlei 85:5dc5a50e4b06 61 }
xinlei 71:063c45e99578 62 return true;
xinlei 71:063c45e99578 63 } else {
xinlei 94:61d44636f020 64 aDebug("Signal: Timeout at %d s.\n", t_interval);
xinlei 77:f6717e4eccc4 65 }
xinlei 77:f6717e4eccc4 66 }
xinlei 77:f6717e4eccc4 67
xinlei 73:313975bfec96 68 char status[25] = {0};
xinlei 93:0acd11870c6a 69 snprintf(status, 25, "Send dBm %d,%d", data[0], data[1]);
xinlei 96:5dfdc8568e9f 70 LCDDisplay::inst().setThirdLine(status);
Cumulocity 41:804f6a0bda26 71 ComposedRecord record;
Cumulocity 41:804f6a0bda26 72 IntegerValue msgId(104);
Cumulocity 41:804f6a0bda26 73 IntegerValue devId(_deviceId);
Cumulocity 41:804f6a0bda26 74 IntegerValue rssi(signalQuality->rssi);
Cumulocity 41:804f6a0bda26 75 IntegerValue ber(signalQuality->ber);
Cumulocity 41:804f6a0bda26 76 if ((!record.add(msgId)) || (!record.add(devId)) || (!record.add(rssi)) || (!record.add(ber)))
Cumulocity 41:804f6a0bda26 77 return false;
Cumulocity 41:804f6a0bda26 78
xinlei 94:61d44636f020 79 time_t t0 = time(NULL);
Cumulocity 41:804f6a0bda26 80 if (_client.send(record) != SMARTREST_SUCCESS) {
xinlei 93:0acd11870c6a 81 aWarning("Signal: Send failed.\n");
Cumulocity 41:804f6a0bda26 82 _client.stop();
Cumulocity 41:804f6a0bda26 83 return false;
Cumulocity 41:804f6a0bda26 84 }
xinlei 94:61d44636f020 85 time_t t1 = time(NULL);
Cumulocity 41:804f6a0bda26 86 _client.stop();
xinlei 94:61d44636f020 87 aDebug("Signal: Sent in %d s.\n", t1-t0);
xinlei 71:063c45e99578 88 oldValues[0] = data[0];
xinlei 71:063c45e99578 89 oldValues[1] = data[1];
xinlei 94:61d44636f020 90 t_start = time(NULL);
Cumulocity 41:804f6a0bda26 91 return true;
Cumulocity 41:804f6a0bda26 92 }