Unityの有料アセットの「iBeacon」のサンプルプログラム内で「rssi」と「accuracy」の値をどのように求めているのかを知りたい。

Question

前提・実現したいこと

Unityの有料アセットの「iBeacon」のサンプルプログラム内で「rssi」と「accuracy」の値をどのように求めているのかを知りたい。そのため、様々な方の知識をお借りしたいと思っております。
一部省略しております。

該当のソースコード

using UnityEngine;
using UnityEngine.UI;
using System;
using System.Collections;
using System.Collections.Generic;

internal class Example : MonoBehaviour {
	[SerializeField]
	private Text _statusText;

	[SerializeField]
	private GameObject _statusScreen;

	[SerializeField]
	private GameObject _menuScreen;

	[SerializeField]
	private Button _bluetoothButton;

	private Text _bluetoothText;

	/*** Beacon Properties ***/
	// Beacontype
	[SerializeField] //to access in editor, avoiding public varible declaration
	private Text txt_actualType;
	// Region
	[SerializeField]
	private Text txt_actualRegion;
	private string s_Region;
	// UUID, Namespace or Url
	[SerializeField]
	private Text txt_actualUUIDChar;
	[SerializeField]
	private Text txt_actualUUID;
	private string s_UUID;
	// Major/Minor or Instance
	[SerializeField]
	private Text txt_actualMajorChar;
	[SerializeField]
	private Text txt_actualMajor;
	private string s_Major;
	[SerializeField]
	private Text txt_actualMinorChar;
	[SerializeField]
	private Text txt_actualMinor;
	private string s_Minor;

	/** Input **/
	// beacontype
	[SerializeField]
	private Dropdown InputDropdown;
	private BeaconType bt_PendingType;
	private BeaconType bt_Type;
	// Region
	[SerializeField]
	private InputField input_Region;
	// UUID, Namespace or Url
	[SerializeField]
	private Text txt_inputUUIDChar;
	[SerializeField]
	private InputField input_UUID;
	// Major/Minor or Instance
	[SerializeField]
	private Text txt_inputMajorChar;
	[SerializeField]
	private InputField input_Major;
	[SerializeField]
	private Text txt_inputMinorChar;
	[SerializeField]
	private InputField input_Minor;

	// Beacon BroadcastMode (Send, Receive)
	[SerializeField]
	private Text txt_BroadcastMode_ButtonText;
	[SerializeField]
	private Text txt_BroadcastMode_LabelText;
	private BroadcastMode bm_Mode;

	// GameObject for found Beacons
	[SerializeField]
	private GameObject go_ScrollViewContent;

	// Receive
	private List<Beacon> mybeacons = new List<Beacon>();

	private void Start() {
		setBeaconPropertiesAtStart(); // please keep here!

		_bluetoothButton.onClick.AddListener(delegate() {
			BluetoothState.EnableBluetooth();
		});
		
		BluetoothState.BluetoothStateChangedEvent += delegate(BluetoothLowEnergyState state) {
			switch (state) {
			case BluetoothLowEnergyState.TURNING_OFF:
			case BluetoothLowEnergyState.TURNING_ON:
				break;
			case BluetoothLowEnergyState.UNKNOWN:
			case BluetoothLowEnergyState.RESETTING:
				SwitchToStatus();
				_statusText.text = "Checking Device…";
				break;
			case BluetoothLowEnergyState.UNAUTHORIZED:
				SwitchToStatus();
				_statusText.text = "You don't have the permission to use beacons.";
				break;
			case BluetoothLowEnergyState.UNSUPPORTED:
				SwitchToStatus();
				_statusText.text = "Your device doesn't support beacons.";
				break;
			case BluetoothLowEnergyState.POWERED_OFF:
				SwitchToMenu();
				_bluetoothButton.interactable = true;
				_bluetoothText.text = "Enable Bluetooth";
				break;
			case BluetoothLowEnergyState.POWERED_ON:
				SwitchToMenu();
				_bluetoothButton.interactable = false;
				_bluetoothText.text = "Bluetooth already enabled";
				break;
			case BluetoothLowEnergyState.IBEACON_ONLY:
				SwitchToMenu();
				_bluetoothButton.interactable = false;
				_bluetoothText.text = "iBeacon only";
				break;
			default:
				SwitchToStatus();
				_statusText.text = "Unknown Error";
				break;
			}
		};
		
	}

	// Beacon Properties
	public void btn_changeUUID() { // onRelease
		// Beaconregion
		if (input_Region.text != null && input_Region.text != "")
			s_Region	= input_Region.text;
		// Beacontype
		bt_Type = bt_PendingType;
		// UUID, Namespace, Url
		if (input_UUID.text != null && input_UUID.text != "")
			s_UUID		= input_UUID.text;
		// Major or Instance on send
		if (input_Major .text != null && input_Major.text != "")
			s_Major		= input_Major.text;
		// Minor on send
		if (input_Minor .text != null && input_Minor.text != "")
			s_Minor		= input_Minor.text;
		input_Region.image.color = Color.white;
		input_Region.text = "";
		input_UUID.image.color	 = Color.white;
		input_UUID.text = "";
		input_Major.image.color	 = Color.white;
		input_Major.text = "";
		input_Minor.image.color	 = Color.white;
		input_Minor.text = "";
		InputDropdown.image.color = Color.white;
		SetBeaconProperties();
		SavePlayerPrefs();
	}
	
	// BroadcastMode
	
	private void SetBroadcastMode() { 
		// setText
		txt_BroadcastMode_LabelText.text = bm_Mode.ToString();
		if (bm_Mode == BroadcastMode.receive)
			txt_BroadcastMode_ButtonText.text = "Switch to " + BroadcastMode.send.ToString();
		else
			txt_BroadcastMode_ButtonText.text = "Switch to " + BroadcastMode.receive.ToString();
	}

	// BroadcastState
	public void btn_StartStop() {
		//Debug.Log("Button Start / Stop pressed");
		/*** Beacon will start ***/
		if (bs_State == BroadcastState.inactive) {
			// ReceiveMode
			if (bm_Mode == BroadcastMode.receive) {
				iBeaconReceiver.BeaconRangeChangedEvent += OnBeaconRangeChanged;
				// check if all mandatory propertis are filled
				if (s_Region == null || s_Region == "") {
					input_Region.image.color= Color.red;
					return;
				}
				if (bt_Type == BeaconType.Any) {
					iBeaconReceiver.regions = new iBeaconRegion[]{new iBeaconRegion(s_Region, new Beacon())};
				} else {
					if (s_UUID == null || s_UUID == "") {
						input_UUID.image.color= Color.red;
						return;
					}
					if (bt_Type == BeaconType.iBeacon) {
						iBeaconReceiver.regions = new iBeaconRegion[]{new iBeaconRegion(s_Region, new Beacon(s_UUID, Convert.ToInt32(s_Major), Convert.ToInt32(s_Minor)))};
					} 
					
				}
				// !!! Bluetooth has to be turned on !!! TODO
				iBeaconReceiver.Scan();
				Debug.Log ("Listening for beacons");
			}
			// SendMode
			else {
				// check if all mandatory propertis are filled
				if (s_Region == null || s_Region == "") {
					input_Region.image.color= Color.red;
					return;
				}
				 else {
					if (s_UUID == null || s_UUID == "") {
						input_UUID.image.color= Color.red;
						return;
					}
					else {
						if (s_Major == null || s_Major == "") {
							input_Major.image.color= Color.red;
							return;
						}
						else if (bt_Type == BeaconType.iBeacon) {
							if (s_Minor == null || s_Minor == "") {
								input_Major.image.color= Color.red;
								return;
							}
							iBeaconServer.region = new iBeaconRegion(s_Region, new Beacon(s_UUID, Convert.ToInt32(s_Major), Convert.ToInt32(s_Minor)));
							
			}
			bs_State = BroadcastState.active;
			img_ButtonBroadcastState.color = Color.red;
		} else {
			if (bm_Mode == BroadcastMode.receive) {// Stop for receive
				iBeaconReceiver.Stop();
				iBeaconReceiver.BeaconRangeChangedEvent -= OnBeaconRangeChanged;
				removeFoundBeacons();
			} else { // Stop for send
				iBeaconServer.StopTransmit();
			}
			bs_State = BroadcastState.inactive;
			img_ButtonBroadcastState.color = Color.green;
		}
		SetBroadcastState();
		SavePlayerPrefs();
	}
	
	private void OnBeaconRangeChanged(Beacon[] beacons) { // 
		foreach (Beacon b in beacons) {
			var index = mybeacons.IndexOf(b);
			if (index == -1) {
				mybeacons.Add(b);
			} else {
				mybeacons[index] = b;
			}
		}
		for (int i = mybeacons.Count - 1; i >= 0; --i) {
			if (mybeacons[i].lastSeen.AddSeconds(10) < DateTime.Now) {
				mybeacons.RemoveAt(i);
			}
		}
		DisplayOnBeaconFound();
	}

	private void DisplayOnBeaconFound() {
		removeFoundBeacons();
		RectTransform rt_Content = (RectTransform)go_ScrollViewContent.transform;
		foreach (Beacon b in mybeacons) {
			// create clone of foundBeacons
			go_FoundBeaconClone = Instantiate(go_FoundBeacon);
			// make it child of the ScrollView
			go_FoundBeaconClone.transform.SetParent(go_ScrollViewContent.transform);
			// get resolution based scalefactor
			float f_scaler = ((RectTransform)go_FoundBeaconClone.transform).localScale.y;
			Vector2 v2_scale = new Vector2(1,1);
			// reset scalefactor
			go_FoundBeaconClone.transform.localScale = v2_scale;
			// get anchorposition
			Vector3 pos = go_ScrollViewContent.transform.position; 
			// positioning
			pos.y -= f_ScrollViewContentRectHeight/f_scaler * i_BeaconCounter;
			go_FoundBeaconClone.transform.position = pos;
			i_BeaconCounter++;
			// resize scrollviewcontent
			rt_Content.sizeDelta = new Vector2(f_ScrollViewContentRectWidth,f_ScrollViewContentRectHeight*i_BeaconCounter);
			go_FoundBeaconClone.SetActive(true);
			// adding reference to instance
			go_FoundBeaconCloneList.Add(go_FoundBeaconClone);
			// get textcomponents
			Text[]Texts	= go_FoundBeaconClone.GetComponentsInChildren<Text>();
			// deleting placeholder
			foreach (Text t in Texts)
				t.text = "";
			Debug.Log ("fond Beacon: " + b.ToString());
			switch (b.type) {
			case BeaconType.iBeacon:
				Texts[0].text 	= "UUID:";
				Texts[1].text 	= b.UUID.ToString();
				Texts[2].text 	= "Major:";
				Texts[3].text	= b.major.ToString();
				Texts[4].text 	= "Minor:";
				Texts[5].text	= b.minor.ToString();
				Texts[6].text 	= "Range:";
				Texts[7].text	= b.range.ToString();
				Texts[8].text 	= "Strength:";
				Texts[9].text	= b.strength.ToString() + " db";
				Texts[10].text 	= "Accuracy:";
				Texts[11].text	= b.accuracy.ToString().Substring(0,10) + " m";
				Texts[12].text 	= "Rssi:";
				Texts[13].text	= b.rssi.ToString() + " db";
				break;

			//省略
			default:
				break;
			}
		}
	}
}

Answer 1

rssiってbluetoothの電波強度だろうから、アンテナを通った後の電圧・電流をbluetoothレシーバが記録して、ドライバ経由で出してるのでは、、
10log10(mVA) dBmとか聞きたいわけではないと思いますが。

Answer 2

Beaconクラスに記述してあるんじゃないでしょうか？

Beaconクラスの変数か？プロパティか？をToStringで文字列にして値をtextに表示している部分しかないと思うのですが…？