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/AnalogMeasurement.cpp@91:423177e8a401, 2015-03-20 (annotated)

Committer:
xinlei
Date:
Fri Mar 20 13:55:21 2015 +0000
Revision:
91:423177e8a401
Parent:
89:8ab476939897
Child:
93:0acd11870c6a
Code refactoring to ease coupling

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Cumulocity 47:89ae46d5c466 1 #include "AnalogMeasurement.h"
Cumulocity 47:89ae46d5c466 2 #include "ComposedRecord.h"
Cumulocity 47:89ae46d5c466 3 #include "CharValue.h"
Cumulocity 47:89ae46d5c466 4 #include "IntegerValue.h"
Cumulocity 47:89ae46d5c466 5 #include "FloatValue.h"
xinlei 72:c5709ae7b193 6 #include "logging.h"
Cumulocity 47:89ae46d5c466 7
xinlei 77:f6717e4eccc4 8 #define THRESHOLD_PERCENT_ANA 0.02 // Percentage cut-off for avoiding sending similar analog sensor data.
xinlei 73:313975bfec96 9 // Time interval for forcing a sending even if analog sensor readings are constantly similar (in seconds).
xinlei 73:313975bfec96 10 #define TIME_LIMIT_ANA 900
xinlei 91:423177e8a401 11
xinlei 91:423177e8a401 12 AnalogIn _analog1(A0);
xinlei 91:423177e8a401 13 AnalogIn _analog2(A1);
xinlei 71:063c45e99578 14
xinlei 91:423177e8a401 15 AnalogMeasurement::AnalogMeasurement(AbstractSmartRest& client,
xinlei 91:423177e8a401 16 SmartRestTemplate& tpl,
xinlei 91:423177e8a401 17 long& deviceId,
xinlei 91:423177e8a401 18 DeviceIO& io,
xinlei 91:423177e8a401 19 DeviceInfo& deviceInfo,
xinlei 91:423177e8a401 20 DisplayInfo& displayInfo) :
xinlei 91:423177e8a401 21 _deviceId(deviceId),
xinlei 91:423177e8a401 22 _tpl(tpl),
Cumulocity 47:89ae46d5c466 23 _client(client),
xinlei 73:313975bfec96 24 _io(io),
xinlei 73:313975bfec96 25 _deviceInfo(deviceInfo),
xinlei 82:ca7430f50b2b 26 _displayInfo(displayInfo)
Cumulocity 47:89ae46d5c466 27 {
Cumulocity 47:89ae46d5c466 28 _init = false;
xinlei 71:063c45e99578 29 oldValues[0] = 0;
xinlei 71:063c45e99578 30 oldValues[1] = 0;
xinlei 71:063c45e99578 31 sendingTimer.start();
Cumulocity 47:89ae46d5c466 32 }
Cumulocity 47:89ae46d5c466 33
Cumulocity 47:89ae46d5c466 34 bool AnalogMeasurement::init()
Cumulocity 47:89ae46d5c466 35 {
Cumulocity 47:89ae46d5c466 36 if (_init)
Cumulocity 47:89ae46d5c466 37 return false;
Cumulocity 47:89ae46d5c466 38
Cumulocity 47:89ae46d5c466 39 // Insert measurement
Cumulocity 47:89ae46d5c466 40 // USAGE: 107,<DEVICE/ID>,<ANALOG1>,<ANALOG2>
Cumulocity 47:89ae46d5c466 41 if (!_tpl.add("10,107,POST,/measurement/measurements,application/vnd.com.nsn.cumulocity.measurement+json,application/vnd.com.nsn.cumulocity.measurement+json,%%,NOW UNSIGNED NUMBER NUMBER,\"{\"\"time\"\":\"\"%%\"\",\"\"source\"\":{\"\"id\"\":\"\"%%\"\"},\"\"type\"\":\"\"c8y_AnalogMeasurement\"\",\"\"c8y_AnalogMeasurement\"\":{\"\"A1\"\":{\"\"value\"\":%%,\"\"unit\"\":\"\"A\"\"},\"\"A2\"\":{\"\"value\"\":%%,\"\"unit\"\":\"\"A\"\"}}}\"\r\n"))
Cumulocity 47:89ae46d5c466 42 return false;
Cumulocity 47:89ae46d5c466 43
Cumulocity 47:89ae46d5c466 44 _init = true;
Cumulocity 47:89ae46d5c466 45 return true;
Cumulocity 47:89ae46d5c466 46 }
Cumulocity 47:89ae46d5c466 47
Cumulocity 47:89ae46d5c466 48 bool AnalogMeasurement::run()
Cumulocity 47:89ae46d5c466 49 {
xinlei 85:5dc5a50e4b06 50 extern bool lastSensorReadingSent;
xinlei 91:423177e8a401 51 float data[2] = {(float)_analog1*100, (float)_analog2*100};
xinlei 91:423177e8a401 52
xinlei 71:063c45e99578 53 if (abs(oldValues[0]-data[0]) <= abs(oldValues[0])*THRESHOLD_PERCENT_ANA &&
xinlei 71:063c45e99578 54 abs(oldValues[1]-data[1]) <= abs(oldValues[1])*THRESHOLD_PERCENT_ANA) {
xinlei 71:063c45e99578 55 if (sendingTimer.read() < TIME_LIMIT_ANA) {
xinlei 85:5dc5a50e4b06 56 if (lastSensorReadingSent) {
xinlei 85:5dc5a50e4b06 57 _io.lcdPrint(_displayInfo.getFirstLine(), _displayInfo.getSecondLine());
xinlei 85:5dc5a50e4b06 58 lastSensorReadingSent=false;
xinlei 85:5dc5a50e4b06 59 }
xinlei 73:313975bfec96 60 aDebug("Similar analog readings found, no sending!\r\n");
xinlei 89:8ab476939897 61 // printf("[N] %f, %f\r\n", data[0], data[1]);
xinlei 71:063c45e99578 62 return true;
xinlei 71:063c45e99578 63 } else {
xinlei 77:f6717e4eccc4 64 aDebug("Analog sensor timed out at %f s, a sending is forced.\r\n", sendingTimer.read());
xinlei 91:423177e8a401 65 }
xinlei 71:063c45e99578 66 }
xinlei 91:423177e8a401 67
xinlei 89:8ab476939897 68 // printf("[Y] %f, %f (%f, %f)\r\n", data[0], data[1], oldValues[0], oldValues[1]);
xinlei 73:313975bfec96 69 char status[25] = {0};
xinlei 74:ca3001991fdc 70 snprintf(status, 25, "Sending Poti %.1f,%.1f", data[0], data[1]);
xinlei 84:3c8ceb12b773 71 _io.lcdPrint(_displayInfo.getFirstLine(), _displayInfo.getSecondLine(), status);
Cumulocity 47:89ae46d5c466 72 ComposedRecord record;
Cumulocity 47:89ae46d5c466 73 IntegerValue msgId(107);
Cumulocity 47:89ae46d5c466 74 IntegerValue devId(_deviceId);
xinlei 71:063c45e99578 75 FloatValue analog1(data[0], 1);
xinlei 71:063c45e99578 76 FloatValue analog2(data[1], 1);
Cumulocity 47:89ae46d5c466 77 if ((!record.add(msgId)) || (!record.add(devId)) || (!record.add(analog1)) || (!record.add(analog2)))
Cumulocity 47:89ae46d5c466 78 return false;
Cumulocity 47:89ae46d5c466 79
xinlei 73:313975bfec96 80 float t_start = sendingTimer.read();
Cumulocity 47:89ae46d5c466 81 if (_client.send(record) != SMARTREST_SUCCESS) {
xinlei 76:b07effe83fb8 82 aWarning("Sending analog readings failed.");
Cumulocity 47:89ae46d5c466 83 _client.stop();
Cumulocity 47:89ae46d5c466 84 return false;
Cumulocity 47:89ae46d5c466 85 }
xinlei 73:313975bfec96 86 float t_end = sendingTimer.read();
Cumulocity 47:89ae46d5c466 87 _client.stop();
xinlei 74:ca3001991fdc 88 aInfo("Analog readings sent in %.1f.\r\n", t_end-t_start);
xinlei 71:063c45e99578 89 oldValues[0] = data[0];
xinlei 71:063c45e99578 90 oldValues[1] = data[1];
xinlei 71:063c45e99578 91 sendingTimer.reset();
xinlei 85:5dc5a50e4b06 92 lastSensorReadingSent=true;
Cumulocity 47:89ae46d5c466 93 return true;
Cumulocity 47:89ae46d5c466 94 }