osd-contiki/examples/sky-shell/src/se/sics/contiki/collect/SensorData.java

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/*
* Copyright (c) 2008, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: SensorData.java,v 1.1 2008/07/09 23:18:06 nifi Exp $
*
* -----------------------------------------------------------------
*
* SensorData
*
* Authors : Joakim Eriksson, Niclas Finne
* Created : 3 jul 2008
* Updated : $Date: 2008/07/09 23:18:06 $
* $Revision: 1.1 $
*/
package se.sics.contiki.collect;
/**
*
*/
public class SensorData {
public static final int TICKS_PER_SECOND = 4096;
private static final double VOLTAGE = 3;
private static final double POWER_CPU = 1.800 * VOLTAGE; /* mW */
private static final double POWER_LPM = 0.0545 * VOLTAGE; /* mW */
private static final double POWER_TRANSMIT = 17.7 * VOLTAGE; /* mW */
private static final double POWER_LISTEN = 20.0 * VOLTAGE; /* mW */
public static final int DATA_LEN = 0;
public static final int TIMESTAMP1 = 1;
public static final int TIMESTAMP2 = 2;
public static final int TIMESYNCTIMESTAMP = 3;
public static final int NODE_ID = 4;
public static final int SEQNO = 5;
public static final int HOPS = 6;
public static final int LATENCY = 7;
public static final int DATA_LEN2 = 8;
public static final int CLOCK = 9;
public static final int TIMESYNCHTIME = 10;
public static final int LIGHT1 = 11;
public static final int LIGHT2 = 12;
public static final int TEMPERATURE = 13;
public static final int HUMIDITY = 14;
public static final int RSSI = 15;
public static final int TIME_CPU = 16;
public static final int TIME_LPM = 17;
public static final int TIME_TRANSMIT = 18;
public static final int TIME_LISTEN = 19;
public static final int BEST_NEIGHBOR = 20;
public static final int BEST_NEIGHBOR_ETX = 21;
public static final int BEST_NEIGHBOR_RTMETRIC = 22;
public static final int VALUES_COUNT = 23;
private final Node node;
private final int[] values;
private final long time;
public SensorData(Node node, int[] values) {
this.node = node;
this.values = values;
this.time = ((values[TIMESTAMP1] << 16) + values[TIMESTAMP2]) * 1000;
}
public Node getNode() {
return node;
}
public String getNodeID() {
return node.getID();
}
public int getValue(int index) {
return values[index];
}
public long getTime() {
return time;
}
public String toString() {
StringBuilder sb = new StringBuilder();
for (int i = 0, n = values.length; i < n; i++) {
if (i > 0) sb.append(' ');
sb.append(values[i]);
}
return sb.toString();
}
public static SensorData parseSensorData(CollectServer server, String line) {
String[] components = line.split(" ");
if (components.length != SensorData.VALUES_COUNT) {
return null;
}
// Sensor data line (probably)
int[] data = parseToInt(components);
if (data == null || data[0] != VALUES_COUNT) {
System.err.println("Failed to parse data line: '" + line + "'");
return null;
}
String nodeID = mapNodeID(data[NODE_ID]);
Node node = server.addNode(nodeID);
return new SensorData(node, data);
}
public static String mapNodeID(int nodeID) {
return "" + (nodeID & 0xff) + '.' + ((nodeID >> 8) & 0xff);
}
private static int[] parseToInt(String[] text) {
try {
int[] data = new int[text.length];
for (int i = 0, n = data.length; i < n; i++) {
data[i] = Integer.parseInt(text[i]);
}
return data;
} catch (NumberFormatException e) {
return null;
}
}
public double getCPUPower() {
return (values[TIME_CPU] * POWER_CPU) / (values[TIME_CPU] + values[TIME_LPM]);
}
public double getLPMPower() {
return (values[TIME_LPM] * POWER_LPM) / (values[TIME_CPU] + values[TIME_LPM]);
}
public double getListenPower() {
return (values[TIME_LISTEN] * POWER_LISTEN) / (values[TIME_CPU] + values[TIME_LPM]);
}
public double getTransmitPower() {
return (values[TIME_TRANSMIT] * POWER_TRANSMIT) / (values[TIME_CPU] + values[TIME_LPM]);
}
public double getAveragePower() {
return (values[TIME_CPU] * POWER_CPU + values[TIME_LPM] * POWER_LPM
+ values[TIME_LISTEN] * POWER_LISTEN + values[TIME_TRANSMIT] * POWER_TRANSMIT)
/ (values[TIME_CPU] + values[TIME_LPM]);
}
public long getPowerMeasureTime() {
return (1000 * (values[TIME_CPU] + values[TIME_LPM])) / TICKS_PER_SECOND;
}
public double getTemperature() {
return -39.6 + 0.01 * values[TEMPERATURE];
}
public double getLatency() {
return values[LATENCY] / 4096.0;
}
public double getHumidity() {
// double v = values[HUMIDITY];
// double humidity = -4.0 + 0.0405 * v + -0.0000028 * v * v;
// // Correct humidity using temperature compensation
// return (getTemperature() - 25) * (0.01 + 0.00008*v + humidity);
return -4.0 + 405.0 * values[HUMIDITY] / 10000.0;
}
public double getLight1() {
// double v = (values[LIGHT1] * VOLTAGE) / 4096.0;
// return 0.625 * 1000000 * v * 10;
return 10.0 * values[LIGHT1] / 7.0;
}
public double getLight2() {
return 46.0 * values[LIGHT2] / 10.0;
}
public String getBestNeighborID() {
return values[BEST_NEIGHBOR] > 0 ? mapNodeID(values[BEST_NEIGHBOR]): null;
}
public double getBestNeighborETX() {
return values[BEST_NEIGHBOR_ETX] / 16.0;
}
}