android GSM+CDMA基站定位

android GSM+CDMA基站定位--获取移动网络相关信息

在googleAPI里提供了基站信息的获取类TelephonyManager，通过其方法getCellLocation 得到CellLocation即可获取到基站相关信息

但CellLocation是个抽象类，所以在具体使用时需要判断接入的网络制式来用其子类CdmaCellLocation或GsmCellLocation 来强转

CdmaCellLocation对应CDMA网，GsmCellLocation对应GSM网

三大网络运营商的网络制式对应如下：

移动2G 网--> GSM

移动3G 网--> TD-SCDMA

电信2G 网--> CDMA

电信3G 网--> CDMA2000

联通2G 网--> GSM

联通3G 网--> WCDMA

由此可见移动，联通2G 网都可使用GsmCellLocation

电信2G,3G网则使用CdmaCellLocation

那么移动3G和联通3G又当如何

其实经本人亲测，移动3G网也可使用GsmCellLocation，听说是TD-SCDMA衍生于GSM，具体原因咱也不用纠结了，反正能用就是了

而联通的WCDMA据说也可使用GsmCellLocation，那姑且就是这样吧，有条件的童鞋试一试吧。

对于网络制式的判断调用TelephonyManager.getNetworkType()可有多种情况，如下：

?NETWORK_TYPE_UNKNOWN

?NETWORK_TYPE_GPRS

?NETWORK_TYPE_EDGE

?NETWORK_TYPE_UMTS

?NETWORK_TYPE_HSDPA

?NETWORK_TYPE_HSUPA

?NETWORK_TYPE_HSPA

?NETWORK_TYPE_CDMA

?NETWORK_TYPE_EVDO_0

?NETWORK_TYPE_EVDO_A

?NETWORK_TYPE_EVDO_B

?NETWORK_TYPE_1xRTT

?NETWORK_TYPE_IDEN

?NETWORK_TYPE_LTE

?NETWORK_TYPE_EHRPD

通过对网络类型判断后获取对应基站信息代码片段如下:

Html代码

1.public static ArrayList getCellIDInfo(Context context) throws Ex

ception{

2.

3. TelephonyManager manager = (TelephonyManager) context.getSystemServi

ce(Context.TELEPHONY_SERVICE);

4.

5. ArrayListCellID = new ArrayList();

6. CellIDInfo currentCell = new CellIDInfo();

7.

8. int type = manager.getNetworkType();

9. Log.d(TAG, "getCellIDInfo-->NetworkType = " + type);

10. int phoneType = manager.getPhoneType();

11. Log.d(TAG, "getCellIDInfo-->phoneType = " + phoneType);

12.

13. if (type == https://www.360docs.net/doc/298975554.html,WORK_TYPE_GPRS // GSM

网

14. || type == https://www.360docs.net/doc/298975554.html,WORK_TYPE_EDGE

15. || type == https://www.360docs.net/doc/298975554.html,WORK_TYPE_HSDPA)

16. {

17. GsmCellLocation gsm = ((GsmCellLocation) manager.getCellLocation

());

18. if (gsm == null)

19. {

20. Log.e(TAG, "GsmCellLocation is null!!!");

21. return null;

22. }

23.

24.

25. int lac = gsm.getLac();

26. String mcc = manager.getNetworkOperator().substring(0, 3);

27. String mnc = manager.getNetworkOperator().substring(3, 5);

28. int cid = gsm.getCid();

29.

30.currentCell.cellId = gsm.getCid();

31.currentCell.mobileCountryCode = mcc;

32.currentCell.mobileNetworkCode = mnc;

33.currentCell.locationAreaCode = lac;

34.

35.currentCell.radioType = "gsm";

36.

37. CellID.add(currentCell);

38.

39. // 获得邻近基站信息

40. Listlist = manager.getNeighboringCellInfo

();

41. int size = list.size();

42. for (int i = 0; i

43.

44. CellIDInfo info = new CellIDInfo();

https://www.360docs.net/doc/298975554.html,.cellId = list.get(i).getCid();

https://www.360docs.net/doc/298975554.html,.mobileCountryCode = mcc;

https://www.360docs.net/doc/298975554.html,.mobileNetworkCode = mnc;

https://www.360docs.net/doc/298975554.html,.locationAreaCode = lac;

49.

50. CellID.add(info);

51. }

52.

53. }else if (type == https://www.360docs.net/doc/298975554.html,WORK_TYPE_CDMA // 电信c

dma网

54. || type == https://www.360docs.net/doc/298975554.html,WORK_TYPE_1xRTT

55. || type == https://www.360docs.net/doc/298975554.html,WORK_TYPE_EVDO_0

56. || type == https://www.360docs.net/doc/298975554.html,WORK_TYPE_EVDO_A)

57. {

58.

59. CdmaCellLocation cdma = (CdmaCellLocation) manager.getCellLocati

on();

60. if (cdma == null)

61. {

62. Log.e(TAG, "CdmaCellLocation is null!!!");

63. return null;

64. }

65.

66. int lac = cdma.getNetworkId();

67. String mcc = manager.getNetworkOperator().substring(0, 3);

68. String mnc = String.valueOf(cdma.getSystemId());

69. int cid = cdma.getBaseStationId();

70.

71.currentCell.cellId = cid;

72.currentCell.mobileCountryCode = mcc;

73.currentCell.mobileNetworkCode = mnc;

74.currentCell.locationAreaCode = lac;

75.

76.currentCell.radioType = "cdma";

77.

78. CellID.add(currentCell);

79.

80. // 获得邻近基站信息

81. Listlist = manager.getNeighboringCellInfo

();

82. int size = list.size();

83. for (int i = 0; i

84.

85. CellIDInfo info = new CellIDInfo();

https://www.360docs.net/doc/298975554.html,.cellId = list.get(i).getCid();

https://www.360docs.net/doc/298975554.html,.mobileCountryCode = mcc;

https://www.360docs.net/doc/298975554.html,.mobileNetworkCode = mnc;

https://www.360docs.net/doc/298975554.html,.locationAreaCode = lac;

90.

91. CellID.add(info);

92. }

93. }

94.

95. return CellID;

96.

97. }

从GOOGLE的API文档里总共有14钟网络类型，这里只罗列了其中7种，其他的主要是本人也不太清楚其对应到的网络制式是怎样的

所以部分童鞋的SIM卡网络制式不在这7种之内，自己根据实际情况看看它是归类于GSM 还是CDMA在添进去就可以了

网络上多数教程是讲GSM网获取基站的，而忽略了C网的基站

这里我们可以比较一下GSM 和CDMA 在获取基站信息时的不同之处

GSM:

int lac = gsm.getLac();

String mcc = manager.getNetworkOperator().substring(0, 3);

String mnc = manager.getNetworkOperator().substring(3, 5);

int cid = gsm.getCid();

CDMA:

int lac = cdma.getNetworkId();

String mcc = manager.getNetworkOperator().substring(0, 3);

String mnc = String.valueOf(cdma.getSystemId());

int cid = cdma.getBaseStationId();

在获取区域码LAC时GSM使用的是GsmCellLocation.getLac(),CDMA则用CdmaCellLocation.getNetworkId()来代替

在获取基站ID时GSM使用的是GsmCellLocation.getCid(),CDMA则用CdmaCellLocation.getBaseStationId()来代替

前面获取到的都是单个基站的信息，后面再获取周围邻近基站信息以辅助通过基站定位的精准性

TelephonyManager.getNeighboringCellInfo()，将其也放入基站信息LIST表中

最后通过google提供的gear接口获取经纬度，代码如下：

Html代码

1.public static Location callGear(List cellID) {

2. if (cellID == null || cellID.size() == 0)

3. return null;

4.

5. DefaultHttpClient client = new DefaultHttpClient();

6. HttpPost post = new HttpPost("https://www.360docs.net/doc/298975554.html,/loc/json

");

7. JSONObject holder = new JSONObject();

8.

9. try {

10. holder.put("version", "1.1.0");

11. holder.put("host", "https://www.360docs.net/doc/298975554.html,");

12. holder.put("home_mobile_country_code", cellID.get(0).

mobileCountryCode);

13. holder.put("home_mobile_network_code", cellID.get(0).

mobileNetworkCode);

14. holder.put("radio_type", cellID.get(0).radioType);

15. holder.put("request_address", true);

16. if ("460".equals(cellID.get(0).mobileCountryCod

e))

17. holder.put("address_language", "zh_CN");

18. else

19. holder.put("address_language", "en_US");

20.

21. JSONObject data,current_data;

22.

23. JSONArray array = new JSONArray();

24.

25.current_data = new JSONObject();

26. current_data.put("cell_id", cellID.get(0).cellId);

27. current_data.put("location_area_code", cellID.get(0).

locationAreaCode);

28. current_data.put("mobile_country_code", cellID.get

(0).mobileCountryCode);

29. current_data.put("mobile_network_code", cellID.get

(0).mobileNetworkCode);

30. current_data.put("age", 0);

31. current_data.put("signal_strength", -60);

32. current_data.put("timing_advance", 5555);

33. array.put(current_data);

34.

35. if (cellID.size() > 2) {

36. for (int i = 1; i

37.data = new JSONObject();

38. data.put("cell_id", cellID.get(i).cellId);

39. data.put("location_area_code", cellID.get(i).lo

cationAreaCode);

40. data.put("mobile_country_code", cellID.get(i).m

obileCountryCode);

41. data.put("mobile_network_code", cellID.get(i).m

obileNetworkCode);

42. data.put("age", 0);

43. array.put(data);

44. }

45. }

46.

47.

48.

49.

50. holder.put("cell_towers", array);

51.

52. StringEntity se = new StringEntity(holder.toString

());

53. Log.e("Location send", holder.toString());

54. post.setEntity(se);

55. HttpResponse resp = client.execute(post);

56.

57. HttpEntity entity = resp.getEntity();

58.

59. BufferedReader br = new BufferedReader(

60. new InputStreamReader(entity.getCont

ent()));

61. StringBuffer sb = new StringBuffer();

62. String result = br.readLine();

63. while (result != null) {

64. Log.e("Locaiton reseive-->", result);

65. sb.append(result);

66.result = br.readLine();

67. }

68.

69.data = new JSONObject(sb.toString());

70.

71.data = (JSONObject) data.get("location");

72.

73. Location loc = new Location(https://www.360docs.net/doc/298975554.html,WORK_

PROVIDER);

74. loc.setLatitude((Double) data.get("latitude"));

75. loc.setLongitude((Double) data.get("longitude"));

76. loc.setAccuracy(Float.parseFloat(data.get("accuracy

").toString()));

77. loc.setTime( System.currentTimeMillis());//AppUtil.g

etUTCTime());

78. return loc;

79. } catch (JSONException e) {

80. e.printStackTrace();

81. return null;

82. } catch (UnsupportedEncodingException e) {

83. e.printStackTrace();

84. } catch (ClientProtocolException e) {

85. e.printStackTrace();

86. } catch (IOException e) {

87. e.printStackTrace();

88. }

89.

90. return null;

91. }

大家注意看这行holder.put("radio_type", cellID.get(0).radioType);

GSM就用"gsm",CDMA就用"cdma"

这个千万别搞混了，不然就获取不到信息了

值得一提的是C网获取基站再定位那偏差不是一般的大，是恨大，将近1千米了，大概是C网基站较少的缘故吧

最后通过经纬度获取地理位置信息，代码如下：

Java代码

1.public static String getAddress(Location itude) throws Exception {

2. String resultString = "";

3.

4./** 这里采用get方法，直接将参数加到URL上 */

5. String urlString = String.format("https://www.360docs.net/doc/298975554.html,/maps/geo?key

=abcdefg&q=%s,%s", itude.getLatitude(), itude.getLongitude());

6. Log.i("URL", urlString);

7.

8./** 新建HttpClient */

9. HttpClient client = new DefaultHttpClient();

10./** 采用GET方法 */

11. HttpGet get = new HttpGet(urlString);

12.try {

13./** 发起GET请求并获得返回数据 */

14. HttpResponse response = client.execute(get);

15. HttpEntity entity = response.getEntity();

16. BufferedReader buffReader = new BufferedReader(new InputStreamRe

ader(entity.getContent()));

17. StringBuffer strBuff = new StringBuffer();

18. String result = null;

19.while ((result = buffReader.readLine()) != null) {

20. strBuff.append(result);

21. }

22. resultString = strBuff.toString();

23.

24. Log.e("resultAdress--->", resultString);

25.

26./** 解析JSON数据，获得物理地址 */

27.if (resultString != null && resultString.length() > 0) {

28. JSONObject jsonobject = new JSONObject(resultString);

29. JSONArray jsonArray = new JSONArray(jsonobject.get("Placemar

k").toString());

30. resultString = "";

31.for (int i = 0; i < jsonArray.length(); i++) {

32. resultString = jsonArray.getJSONObject(i).getString("add

ress");

33. }

34. }

35. } catch (Exception e) {

36.throw new Exception("获取物理位置出现错误:" + e.getMessage());

37. } finally {

38. get.abort();

39. client = null;

40. }

41.

42.return resultString;

43. }

在获取地理位置的这个location事实上应该传入纠偏后的location，本文暂不做此处理，所以得到的地理信息位置是偶偏差的，大家注意

最后附上截图：