| 一、通過手機信號獲取基站信息 通過TelephonyManager 獲取lac:mcc:mnc:cell-id（基站信息）的解釋： MCC，Mobile Country Code，移動國家代碼（中國的為460）； MNC，Mobile Network Code，移動網絡號碼（中國移動為0，中國聯通為1，中國電信為2）； LAC，Location Area Code，位置區域碼； CID，Cell Identity，基站編號； BSSS，Base station signal strength，基站信號強度。 具體實現代碼如下： | package com.easipass.test;
import java.util.List;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.telephony.NeighboringCellInfo;
import android.telephony.TelephonyManager;
import android.telephony.cdma.CdmaCellLocation;
import android.telephony.gsm.GsmCellLocation;
import android.util.Log;
import android.view.View;
/*** 功能描述：通過手機信號獲取基站信息* # 通過TelephonyManager 獲取lac:mcc:mnc:cell-id* # MCC，Mobile Country Code，移動國家代碼（中國的為460）；* # MNC，Mobile Network Code，移動網絡號碼（中國移動為0，中國聯通為1，中國電信為2）； * # LAC，Location Area Code，位置區域碼；* # CID，Cell Identity，基站編號；* # BSSS，Base station signal strength，基站信號強度。* @author android_ls*/
public class GSMCellLocationActivity extends Activity {private static final String TAG = "GSMCellLocationActivity";@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);// 獲取基站信息findViewById(R.id.button1).setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {TelephonyManager mTelephonyManager = (TelephonyManager)
getSystemService(Context.TELEPHONY_SERVICE);// 返回值MCC + MNCString operator = mTelephonyManager.getNetworkOperator();int mcc = Integer.parseInt(operator.substring(0, 3));int mnc = Integer.parseInt(operator.substring(3));// 中國移動和中國聯通獲取LAC、CID的方式GsmCellLocation location = (GsmCellLocation) mTelephonyManager.getCellLocation();int lac = location.getLac();int cellId = location.getCid();Log.i(TAG, " MCC = " + mcc + "\t MNC = " + mnc + "\t LAC = " + lac + "\t CID = " + cellId);// 中國電信獲取LAC、CID的方式/*CdmaCellLocation location1 = (CdmaCellLocation) mTelephonyManager.getCellLocation();lac = location1.getNetworkId();cellId = location1.getBaseStationId();cellId /= 16;*/// 獲取鄰區基站信息List<NeighboringCellInfo> infos = mTelephonyManager.getNeighboringCellInfo();StringBuffer sb = new StringBuffer("總數 : " + infos.size() + "\n");for (NeighboringCellInfo info1 : infos) { // 根據鄰區總數進行循環sb.append(" LAC : " + info1.getLac()); // 取出當前鄰區的LACsb.append(" CID : " + info1.getCid()); // 取出當前鄰區的CIDsb.append(" BSSS : " + (-113 + 2 * info1.getRssi()) + "\n"); // 獲取鄰區基站信號強度}Log.i(TAG, " 獲取鄰區基站信息:" + sb.toString());}});}
}
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在AndroidManifest.xml添加獲取位置信息的權限： | <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
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點擊“獲取基站信息”的按鈕后，Logcat的日志輸出如下： 1、中國聯通： 2、中國移動： 一、通過手機信號獲取基站信息-單基站定位 | TelephonyManager mTelephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);// 返回值MCC + MNCString operator = mTelephonyManager.getNetworkOperator();mcc = Integer.parseInt(operator.substring(0, 3));mnc = Integer.parseInt(operator.substring(3));// 中國移動和中國聯通獲取LAC、CID的方式GsmCellLocation location = (GsmCellLocation) mTelephonyManager.getCellLocation();lac = location.getLac();cid = location.getCid();Log.i(TAG, "MCC = " + mcc + "\t MNC = " + mnc + "\t LAC = " + lac + "\t CID = " + cid);
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二、調用第三方公開的API（根據基站信息查找基站的經緯度值及地址信息） 1、組拼JSON形式的請求參數 | /*** 獲取JSON形式的基站信息* @param mcc 移動國家代碼（中國的為460）* @param mnc 移動網絡號碼（中國移動為0，中國聯通為1，中國電信為2）； * @param lac 位置區域碼* @param cid 基站編號* @return json* @throws JSONException*/private String getJsonCellPos(int mcc, int mnc, int lac, int cid) throws JSONException {JSONObject jsonCellPos = new JSONObject();jsonCellPos.put("version", "1.1.0");jsonCellPos.put("host", "maps.google.com");JSONArray array = new JSONArray();JSONObject json1 = new JSONObject();json1.put("location_area_code", "" + lac + "");json1.put("mobile_country_code", "" + mcc + "");json1.put("mobile_network_code", "" + mnc + "");json1.put("age", 0);json1.put("cell_id", "" + cid + "");array.put(json1);jsonCellPos.put("cell_towers", array);return jsonCellPos.toString();}
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2、通過HTTP協議網絡請求源碼： | request URL:http://www.minigps.net/minigps/map/google/location
Request Method:POST
Status Code:200 OK
Request Headersview source
Accept:application/json, text/javascript, */*; q=0.01
Accept-Charset:GBK,utf-8;q=0.7,*;q=0.3
Accept-Encoding:gzip,deflate,sdch
Accept-Language:zh-CN,zh;q=0.8
Connection:keep-alive
Content-Length:191
Content-Type:application/json; charset=UTF-8
Cookie:bdshare_firstime=1356366713546; JSESSIONID=68243935CD3355089CF07A3A22AAB372
Host:www.minigps.net
Origin:http://www.minigps.net
Referer:http://www.minigps.net/map.html
User-Agent:Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.4 (KHTML, like Gecko)
Chrome/22.0.1229.94 Safari/537.4
X-Requested-With:XMLHttpRequest
Request Payload
{"cell_towers":[{"mobile_network_code":"1","location_area_code":"43018","cell_id":"11152773","age":0,
"mobile_country_code":"460"}],"host":"maps.google.com","version":"1.1.0"}
Response Headersview source
Content-Type:application/json
Date:Sat, 03 Jan 2013 14:03:15 GMT
Server:Apache-Coyote/1.1
Transfer-Encoding:chunked
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3、用JAVA代碼具體實現 | /*** 調用第三方公開的API根據基站信息查找基站的經緯度值及地址信息*/public String httpPost(String url, String jsonCellPos) throws IOException{byte[] data = jsonCellPos.toString().getBytes();URL realUrl = new URL(url);HttpURLConnection httpURLConnection = (HttpURLConnection) realUrl.openConnection();httpURLConnection.setConnectTimeout(6 * 1000);httpURLConnection.setDoOutput(true);httpURLConnection.setDoInput(true);httpURLConnection.setUseCaches(false);httpURLConnection.setRequestMethod("POST");httpURLConnection.setRequestProperty("Accept", "application/json, text/javascript, */*; q=0.01");httpURLConnection.setRequestProperty("Accept-Charset", "GBK,utf-8;q=0.7,*;q=0.3");httpURLConnection.setRequestProperty("Accept-Encoding", "gzip,deflate,sdch");httpURLConnection.setRequestProperty("Accept-Language", "zh-CN,zh;q=0.8");httpURLConnection.setRequestProperty("Connection", "Keep-Alive");httpURLConnection.setRequestProperty("Content-Length", String.valueOf(data.length));httpURLConnection.setRequestProperty("Content-Type", "application/json; charset=UTF-8");httpURLConnection.setRequestProperty("Host", "www.minigps.net");httpURLConnection.setRequestProperty("Referer", "http://www.minigps.net/map.html");httpURLConnection.setRequestProperty("User-Agent","Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.4 (KHTML, like Gecko)
Chrome/22.0.1229.94 Safari/537.4X-Requested-With:XMLHttpRequest");httpURLConnection.setRequestProperty("X-Requested-With", "XMLHttpRequest");httpURLConnection.setRequestProperty("Host", "www.minigps.net");DataOutputStream outStream = new DataOutputStream(httpURLConnection.getOutputStream());outStream.write(data);outStream.flush();outStream.close();if (httpURLConnection.getResponseCode() == HttpURLConnection.HTTP_OK) {InputStream inputStream = httpURLConnection.getInputStream();return new String(read(inputStream));}return null;} |
4、讀取返回的JSON數據流代碼： | /*** 讀取IO流并以byte[]形式存儲* @param inputSream InputStream* @return byte[]* @throws IOException*/public byte[] read(InputStream inputSream) throws IOException {ByteArrayOutputStream outStream = new ByteArrayOutputStream();int len = -1;byte[] buffer = new byte[1024];while ((len = inputSream.read(buffer)) != -1) {outStream.write(buffer, 0, len);}outStream.close();inputSream.close();return outStream.toByteArray();}
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三、請求參數及返回結果的JSON形式： 1、請求的JSON參數值： | {"cell_towers":[{"mobile_network_code":"1","location_area_code":"43018","cell_id":"11152773","age":0,"mobile_country_code":"460"}],"host":"maps.google.com","version":"1.1.0"}
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2、返回的JSON結果值： | {"location":{"latitude":"31.211389541625977","longitude":"121.60332489013672","address":{"city":"上海市浦東新區居里路432號;浦東新區光啟安老院、第一三共制藥上海公司、SUNPLUS[附近]","country":"","country_code":"","county":"","postal_code":"","region":"","street":"","street_number":""}},"access_token":"dummytoken"}
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四、完整代碼及所需權限： Java代碼： | {"location":{"latitude":"31.211389541625977","longitude":"121.60332489013672","address":{"city":"上海市浦東新區居里路432號;浦東新區光啟安老院
、第一三共制藥上海公司、SUNPLUS[附近]","country":"","country_code":"","county":"","postal_code":"","region":"","street":"","street_number":""}},"access_token":"dummytoken"}
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在AndroidManifest.xml添加獲取位置信息的權限： | package com.easipass.test;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.telephony.TelephonyManager;
import android.telephony.gsm.GsmCellLocation;
import android.util.Log;
import android.view.View;
/*** 功能描述：單基站定位* @author android_ls*/
public class GSMCellLocationActivity extends Activity {private static final String TAG = "GSMCellLocationActivity";private int mcc;private int mnc;private int lac;private int cid;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);// 獲取基站信息findViewById(R.id.button1).setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {TelephonyManager mTelephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);// 返回值MCC + MNCString operator = mTelephonyManager.getNetworkOperator();mcc = Integer.parseInt(operator.substring(0, 3));mnc = Integer.parseInt(operator.substring(3));// 中國移動和中國聯通獲取LAC、CID的方式GsmCellLocation location = (GsmCellLocation) mTelephonyManager.getCellLocation();lac = location.getLac();cid = location.getCid();Log.i(TAG, "MCC = " + mcc + "\t MNC = " + mnc + "\t LAC = " + lac + "\t CID = " + cid);new Thread() {@Overridepublic void run() {try {String json = getJsonCellPos(mcc, mnc, lac, cid);Log.i(TAG, "request = " + json);String url = "http://www.minigps.net/minigps/map/google/location";String result = httpPost(url, json);Log.i(TAG, "result = " + result);} catch (Exception e) {// TODO Auto-generated catch blocke.printStackTrace();}}}.start();}});}/*** 調用第三方公開的API根據基站信息查找基站的經緯度值及地址信息*/public String httpPost(String url, String jsonCellPos) throws IOException{byte[] data = jsonCellPos.toString().getBytes();URL realUrl = new URL(url);HttpURLConnection httpURLConnection = (HttpURLConnection) realUrl.openConnection();httpURLConnection.setConnectTimeout(6 * 1000);httpURLConnection.setDoOutput(true);httpURLConnection.setDoInput(true);httpURLConnection.setUseCaches(false);httpURLConnection.setRequestMethod("POST");httpURLConnection.setRequestProperty("Accept", "application/json, text/javascript, */*; q=0.01");httpURLConnection.setRequestProperty("Accept-Charset", "GBK,utf-8;q=0.7,*;q=0.3");httpURLConnection.setRequestProperty("Accept-Encoding", "gzip,deflate,sdch");httpURLConnection.setRequestProperty("Accept-Language", "zh-CN,zh;q=0.8");httpURLConnection.setRequestProperty("Connection", "Keep-Alive");httpURLConnection.setRequestProperty("Content-Length", String.valueOf(data.length));httpURLConnection.setRequestProperty("Content-Type", "application/json; charset=UTF-8");httpURLConnection.setRequestProperty("Host", "www.minigps.net");httpURLConnection.setRequestProperty("Referer", "http://www.minigps.net/map.html");httpURLConnection.setRequestProperty("User-Agent","Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.4 (KHTML, like Gecko) Chrome
/22.0.1229.94 Safari/537.4X-Requested-With:XMLHttpRequest");httpURLConnection.setRequestProperty("X-Requested-With", "XMLHttpRequest");httpURLConnection.setRequestProperty("Host", "www.minigps.net");DataOutputStream outStream = new DataOutputStream(httpURLConnection.getOutputStream());outStream.write(data);outStream.flush();outStream.close();if (httpURLConnection.getResponseCode() == HttpURLConnection.HTTP_OK) {InputStream inputStream = httpURLConnection.getInputStream();return new String(read(inputStream));}return null;}/*** 獲取JSON形式的基站信息* @param mcc 移動國家代碼（中國的為460）* @param mnc 移動網絡號碼（中國移動為0，中國聯通為1，中國電信為2）； * @param lac 位置區域碼* @param cid 基站編號* @return json* @throws JSONException*/private String getJsonCellPos(int mcc, int mnc, int lac, int cid) throws JSONException {JSONObject jsonCellPos = new JSONObject();jsonCellPos.put("version", "1.1.0");jsonCellPos.put("host", "maps.google.com");JSONArray array = new JSONArray();JSONObject json1 = new JSONObject();json1.put("location_area_code", "" + lac + "");json1.put("mobile_country_code", "" + mcc + "");json1.put("mobile_network_code", "" + mnc + "");json1.put("age", 0);json1.put("cell_id", "" + cid + "");array.put(json1);jsonCellPos.put("cell_towers", array);return jsonCellPos.toString();}/*** 讀取IO流并以byte[]形式存儲* @param inputSream InputStream* @return byte[]* @throws IOException*/public byte[] read(InputStream inputSream) throws IOException {ByteArrayOutputStream outStream = new ByteArrayOutputStream();int len = -1;byte[] buffer = new byte[1024];while ((len = inputSream.read(buffer)) != -1) {outStream.write(buffer, 0, len);}outStream.close();inputSream.close();return outStream.toByteArray();}
}
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基站：類似于WIFI熱點，官方解釋，移動通信系統中，連接固定部分與無線部分，并通過空中的無線傳輸與移動臺相連的設備。基站即公用移動通信基站是無線電臺站的一種形式，是指在一定的無線電覆蓋區中，通過移動通信交換中心，與移動電話終端之間進行信息傳遞的無線電收發信電臺。 單基站定位是指：通過手機獲取當前連接到的基站信息，來確定用戶的大概位置（用戶可能在某個基站（手機當前連接的基站）發出的無線電覆蓋區域中）。 三基站或多基站：通過手機獲取附近區域的基站信息（不是用戶當前連接的基站，得到的是一組基站信息），來確定用戶的大概位置。
獲取鄰區基站信息： | // 獲取鄰區基站信息List<NeighboringCellInfo> infos = mTelephonyManager.getNeighboringCellInfo();StringBuffer sb = new StringBuffer("總數 : " + infos.size() + "\n");for (NeighboringCellInfo info1 : infos) { // 根據鄰區總數進行循環sb.append(" LAC : " + info1.getLac()); // 取出當前鄰區的LACsb.append(" CID : " + info1.getCid()); // 取出當前鄰區的CIDsb.append(" BSSS : " + (-113 + 2 * info1.getRssi()) + "\n"); // 獲取鄰區基站信號強度} |
注：中國聯通的基本上獲取不到附近的基站，我測的時候使用的是中國移動。 一、探索： 1、我猜想請求參數的Json是這樣組裝的： | JSONObject json = new JSONObject();json.put("version", "1.1.0");json.put("host", "maps.google.com");json.put("location_area_code", "6338");json.put("mobile_country_code", "460");json.put("mobile_network_code", "0");json.put("age", 0);JSONArray array = new JSONArray();JSONObject json1 = new JSONObject();json1.put("cell_id", "62291");json1.put("signal_strength", -95);array.put(json1);JSONObject json2 = new JSONObject();json2.put("cell_id", "62290");json2.put("signal_strength", -101);array.put(json2);json.put("cell_towers", array);
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2、組拼好的JSON字符串： | {"mobile_network_code":"0","location_area_code":"6338","host":"maps.google.com","cell_towers":[{"signal_strength":-95,"cell_id":"62291"},{"signal_strength":-101,"cell_id":"62290"}],"age":0,"mobile_country_code":"460","version":"1.1.0"}
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3、通過HTTP請求返回的JSON形式結果： | {"location":{"latitude":"0.0","longitude":"0.0","address":{"city":"基站信息不存在，請從手機上讀取正確的基站信息。","country":"","country_code":"","county":"","postal_code":"","region":"","street":"","street_number":""}},"access_token":"dummytoken"}
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二、可行的方式： 1、通過單個附近的基站信息定位： 組裝參數： | /*** 獲取JSON形式的基站信息* @param mcc 移動國家代碼（中國的為460）* @param mnc 移動網絡號碼（中國移動為0，中國聯通為1，中國電信為2）； * @param lac 位置區域碼* @param cid 基站編號* @param bsss 基站信號強度* @return json* @throws JSONException*/private String getJsonCellPos(int mcc, int mnc, int lac, int cid, int bsss) throws JSONException {JSONObject jsonCellPos = new JSONObject();jsonCellPos.put("version", "1.1.0");jsonCellPos.put("host", "maps.google.com");JSONArray array = new JSONArray();JSONObject json1 = new JSONObject();json1.put("location_area_code", "" + lac + "");json1.put("mobile_country_code", "" + mcc + "");json1.put("mobile_network_code", "" + mnc + "");json1.put("age", 0);json1.put("cell_id", "" + cid + "");json1.put("signal_strength", bsss);array.put(json1);jsonCellPos.put("cell_towers", array);return jsonCellPos.toString();}
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請求的JSON字符串： | {"cell_towers":[{"mobile_network_code":"0","location_area_code":"6338","cell_id":"62291","signal_strength":-95,"age":0,"mobile_country_code":"460"}],"host":"maps.google.com","version":"1.1.0"}
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返回JSON形式結果： | {
"location":
{
 
; "latitude":"31.214667405",
"longitude":"121.59903152499999",
&nbs
p; "address":
{
 
; "city":"
上海市浦東新區郭守敬路;上海奧威科技開發公司、
科威國際技術轉移中心公司、張江高科技園區熱力中心[附近]",
"country":"",
"country_code":"",
 
; "county":"",
 
; "postal_code":"",
"region":"",
"street":"",
"street_number":""
}
},
"access_token":"dummytoken"
}
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2、通過多個附近的基站信息定位： 又一次猜想： 請求JSON： | {"cell_towers":[{"mobile_network_code":"0","location_area_code":"6338","cell_id":"62291","signal_strength":-95,"age":0,"mobile_country_code":"460"},{"mobile_network_code":"0","location_area_code":"6338","cell_id":"62290","signal_strength":-101,"age":1,"mobile_country_code":"460"}],"host":"maps.google.com","version":"1.1.0"}
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返回JSON： | {"location":{"latitude":"31.21485922285714","longitude":"121.59990774285711","address":{"city":"上海市浦東新區郭守敬路276號;上海奧威科技開發公司、科威國際技術轉移中心公司、
張江高科技園區熱力中心[附近]","country":"","country_code":"","county":"","postal_code":"","region":"","street":"","street_number":""}},"access_token":"dummytoken"}
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結論：第三方服務器端可能有限制，每次只接受JSONArray中的第一個元素。如果要想一次性查找附近多個基站的經緯度及所在的地址，就只能編寫for循環，一次一次的訪問第三方的服務器。 3、個人觀點：所謂的三點定位或多點定位，只是讓想知道用戶當前位置的人多了一個選擇而已。三點定位得到的是三個點，并非是一個比較準確的點。 4、補充： 基站在線定位查詢連接：?http://www.gpsspg.com/bs.htm |
