Đo lưới GPS dưới đường dây điện 500KV

25/05/2021
0 Đánh giá

Lâu  nay  mọi người  vẫn băn khoăn là : có  thể đo  lưới GPS  bằng phương pháp đo đo tĩnh , dưới đường dây điện 500KV không ? Qua kết quả  đo thực tế  cho thấy là hoàn toàn có thể làm việc này , xem chi tiết bên dưới .

Để có thể đo GPS và tính được  kết quả tốt xin đưa ra 3 yêu cầu chính :

    1.- Thiết bị tốt : cần dùng GPS 2 tần số  Trimble , Leica ( GPS1200).

    2.- Thời gian đo 1 ca GPS tối thiểu 90 phút .

    3.- Chọn thời gian đo tốt (tránh đo từ 11-14h)

    4.- Đồ hình đo GPS hợp lý 

 

SƠ ĐỒ LƯỚI ĐO GPS

 

                                                KẾT QUẢ XỬ LÝ CẠNH

Description: C:\ProgramData\LEICA Geosystems\LGO\Report style sheets\Logo.gif

KẾT QUẢ BÌNH SAI GPS ( Network Adjustment )

www.MOVE3.com

(c) 1993-2012 Grontmij

Licensed to Leica Geosystems AG

 

Created: 05/20/2021 21:58:34

Description: C:\ProgramData\LEICA Geosystems\LGO\Report style sheets\Hr.gifAdjustment Results Description: C:\ProgramData\LEICA Geosystems\LGO\Report style sheets\Hr.gif

Coordinates

 

Station

Coordinate

Corr

Sd

DC-1

Easting

605515.0588 m

0.0000 m

0.0078 m

 

 

Northing

1182946.3671 m

0.0000 m

0.0068 m

 

 

Height

1.9494 m

0.0000 m

0.0261 m

 

DC-2

Easting

605662.2173 m

0.0000 m

0.0054 m

 

 

Northing

1182842.5315 m

0.0000 m

0.0051 m

 

 

Height

2.5845 m

0.0000 m

0.0191 m

 

GPS-01BR

Easting

605507.1381 m

0.0000 m

-

fixed

 

Northing

1182627.8729 m

0.0000 m

-

fixed

 

Height

4.5899 m

0.0000 m

0.0161 m

 

GPS-01C

Easting

605625.7271 m

0.0000 m

-

fixed

 

Northing

1182663.1719 m

0.0000 m

-

fixed

 

Height

4.6157 m

0.0000 m

0.0141 m

 

GPS-02C

Easting

605343.1860 m

0.0000 m

-

fixed

 

Northing

1182909.2950 m

0.0000 m

-

fixed

 

Height

2.7910 m

0.0000 m

-

fixed

GPS-04CJ

Easting

605312.4374 m

0.0000 m

0.0033 m

 

 

Northing

1183152.3889 m

0.0000 m

0.0032 m

 

 

Height

3.1850 m

0.0000 m

0.0120 m

 

GPS-05CJ

Easting

605172.8436 m

0.0000 m

0.0036 m

 

 

Northing

1183262.1813 m

0.0000 m

0.0035 m

 

 

Height

2.6817 m

0.0000 m

0.0130 m

 

GPS-3VK

Easting

605272.1793 m

0.0000 m

0.0028 m

 

 

Northing

1183314.2860 m

0.0000 m

0.0031 m

 

 

Height

3.0280 m

0.0000 m

0.0079 m

 

GPS-4VK

Easting

605375.5395 m

0.0000 m

0.0018 m

 

 

Northing

1183395.3651 m

0.0000 m

0.0023 m

 

 

Height

4.1035 m

0.0000 m

0.0433 m

 

GPS-5VK

Easting

605494.9659 m

0.0000 m

0.0092 m

 

 

Northing

1183505.6484 m

0.0000 m

0.0096 m

 

 

Height

3.6590 m

0.0000 m

0.0324 m

 

KẾT QUẢ TINH SAI SỐ KHÉP VÒNG (Loops and Misclosures)

www.MOVE3.com

(c) 1993-2012 Grontmij

Licensed to Leica Geosystems AG

 

Created: 05/20/2021 21:59:52

Project name:

20-5-GS-NHABE

Date created:

05/20/2021 21:31:00

Time zone:

7h 00'

Coordinate system name:

HCM-VN2000-WGS84

Application software:

LEICA Geo Office 8.4

Processing kernel:

MOVE3 4.1
       

Description: C:\ProgramData\LEICA Geosystems\LGO\Report style sheets\Hr.gifGPS Baseline Loops Description: C:\ProgramData\LEICA Geosystems\LGO\Report style sheets\Hr.gif

Loop 1

 

From

To

dX[m]

dY[m]

dZ[m]

Epoch

 

DC-2

GPS-02C

308.8952

79.8446

66.6305

05/20/2021 14:20:00

 

GPS-02C

GPS-01C

-283.5510

-35.4263

-242.3922

05/20/2021 14:20:00

 

GPS-01C

DC-2

-25.3441

-44.4176

175.7620

05/20/2021 14:15:15

 

 

X:

0.0001 m

W-Test:

0.01

 

 

Y:

0.0006 m

 

0.01

 

 

Z:

0.0002 m

 

0.01

 

 

 

Easting:

-0.0003 m

W-Test:

-0.01

 

 

Northing:

0.0001 m

 

0.01

 

 

Height:

0.0006 m

 

0.01

 

 

 

Closing error:

0.0007 m

(0.8 ppm)

Ratio:(1:1263234)

 

 

Length:

883.6951 m

 

Loop 2

 

From

To

dX[m]

dY[m]

dZ[m]

Epoch

 

DC-1

GPS-5VK

46.9485

-92.5739

549.9135

05/20/2021 16:12:30

 

GPS-5VK

GPS-04CJ

157.1693

115.0758

-346.6285

05/20/2021 16:12:30

 

GPS-04CJ

DC-1

-204.1195

-22.5096

-203.2864

05/20/2021 14:48:30

 

 

X:

-0.0017 m

W-Test:

-0.03

 

 

Y:

-0.0077 m

 

-0.06

 

 

Z:

-0.0015 m

 

-0.03

 

 

 

Easting:

0.0039 m

W-Test:

0.06

 

 

Northing:

-0.0002 m

 

0.00

 

 

Height:

-0.0070 m

 

-0.06

 

 

 

Closing error:

0.0080 m

(6.4 ppm)

Ratio:(1:155059)

 

 

Length:

1246.1948 m

 

Loop 3

 

From

To

dX[m]

dY[m]

dZ[m]

Epoch

 

GPS-3VK

GPS-4VK

-95.2240

-43.1506

79.5465

05/20/2021 16:55:00

 

GPS-4VK

GPS-04CJ

48.4568

60.6667

-238.7146

05/20/2021 16:55:00

 

GPS-04CJ

GPS-3VK

46.7661

-17.5261

159.1700

05/20/2021 16:47:00

 

 

X:

-0.0011 m

W-Test:

-0.02

 

 

Y:

-0.0100 m

 

-0.08

 

 

Z:

0.0020 m

 

0.04

 

 

 

Easting:

0.0039 m

W-Test:

0.06

 

 

Northing:

0.0037 m

 

0.07

 

 

Height:

-0.0088 m

 

-0.07

 

 

 

Closing error:

0.0103 m

(18.7 ppm)

Ratio:(1:53410)

 

 

Length:

549.2122 m

 

Loop 4

 

From

To

dX[m]

dY[m]

dZ[m]

Epoch

 

GPS-05CJ

GPS-3VK

-92.6238

-37.4963

50.9555

05/20/2021 16:47:00

 

GPS-3VK

GPS-04CJ

-46.7661

17.5261

-159.1700

05/20/2021 16:47:00

 

GPS-04CJ

GPS-05CJ

139.3908

19.9698

108.2137

05/20/2021 14:50:15

 

 

X:

0.0010 m

W-Test:

0.02

 

 

Y:

-0.0005 m

 

0.00

 

 

Z:

-0.0009 m

 

-0.03

 

 

 

Easting:

-0.0008 m

W-Test:

-0.01

 

 

Northing:

-0.0007 m

 

-0.02

 

 

Height:

-0.0009 m

 

-0.01

 

 

 

Closing error:

0.0014 m

(3.0 ppm)

Ratio:(1:328119)

 

 

Length:

456.5806 m

 

Loop 5

 

From

To

dX[m]

dY[m]

dZ[m]

Epoch

 

GPS-02C

GPS-05CJ

180.9827

-14.2681

347.2399

05/20/2021 14:50:15

 

GPS-05CJ

GPS-04CJ

-139.3908

-19.9698

-108.2137

05/20/2021 14:50:15

 

GPS-04CJ

GPS-02C

-41.5919

34.2378

-239.0262

05/20/2021 14:48:30

 

 

X:

0.0000 m

W-Test:

0.00

 

 

Y:

-0.0001 m

 

0.00

 

 

Z:

0.0000 m

 

0.00

 

 

 

Easting:

0.0000 m

W-Test:

0.00

 

 

Northing:

0.0000 m

 

0.00

 

 

Height:

-0.0001 m

 

0.00

 

 

 

Closing error:

0.0001 m

(0.1 ppm)

Ratio:(1:8889405)

 

 

Length:

814.4473 m

 

Loop 6

 

From

To

dX[m]

dY[m]

dZ[m]

Epoch

 

DC-1

GPS-5VK

46.9485

-92.5739

549.9135

05/20/2021 16:12:30

 

GPS-5VK

DC-2

-193.3192

69.4670

-652.2852

05/20/2021 16:12:30

 

DC-2

DC-1

146.3679

23.0974

102.3704

05/20/2021 14:15:15

 

 

X:

-0.0028 m

W-Test:

-0.05

 

 

Y:

-0.0095 m

 

-0.07

 

 

Z:

-0.0014 m

 

-0.03

 

 

 

Easting:

0.0054 m

W-Test:

0.08

 

 

Northing:

0.0002 m

 

0.00

 

 

Height:

-0.0084 m

 

-0.07

 

 

 

Closing error:

0.0100 m

(7.0 ppm)

Ratio:(1:142289)

 

 

Length:

1423.5929 m

 

Loop 7

 

From

To

dX[m]

dY[m]

dZ[m]

Epoch

 

GPS-5VK

GPS-04CJ

157.1693

115.0758

-346.6285

05/20/2021 16:12:30

 

GPS-04CJ

GPS-4VK

-48.4568

-60.6667

238.7146

05/20/2021 16:55:00

 

GPS-4VK

DC-2

-302.0301

15.0639

-544.3716

05/20/2021 16:55:00

 

DC-2

GPS-5VK

193.3192

-69.4670

652.2852

05/20/2021 16:12:30

 

 

X:

0.0015 m

W-Test:

0.03

 

 

Y:

0.0060 m

 

0.05

 

 

Z:

-0.0003 m

 

-0.01

 

 

 

Easting:

-0.0032 m

W-Test:

-0.05

 

 

Northing:

-0.0013 m

 

-0.03

 

 

Height:

0.0052 m

 

0.05

 

 

 

Closing error:

0.0062 m

(3.2 ppm)

Ratio:(1:314644)

 

 

Length:

1955.2315 m

 

Loop 8

 

From

To

dX[m]

dY[m]

dZ[m]

Epoch

 

GPS-04CJ

DC-1

-204.1195

-22.5096

-203.2864

05/20/2021 14:48:30

 

DC-1

GPS-02C

162.5271

56.7489

-35.7401

05/20/2021 14:20:00

 

GPS-02C

GPS-04CJ

41.5919

-34.2378

239.0262

05/20/2021 14:48:30

 

 

X:

-0.0005 m

W-Test:

-0.02

 

 

Y:

0.0016 m

 

0.03

 

 

Z:

-0.0003 m

 

-0.01

 

 

 

Easting:

0.0000 m

W-Test:

0.00

 

 

Northing:

-0.0006 m

 

-0.03

 

 

Height:

0.0016 m

 

0.03

 

 

 

Closing error:

0.0017 m

(2.4 ppm)

Ratio:(1:419083)

 

 

Length:

709.8003 m

 

Loop 9

 

From

To

dX[m]

dY[m]

dZ[m]

Epoch

 

GPS-04CJ

GPS-5VK

-157.1693

-115.0758

346.6285

05/20/2021 16:12:30

 

GPS-5VK

GPS-05CJ

296.5595

135.0472

-238.4140

05/20/2021 16:12:30

 

GPS-05CJ

GPS-04CJ

-139.3908

-19.9698

-108.2137

05/20/2021 14:50:15

 

 

X:

-0.0006 m

W-Test:

-0.02

 

 

Y:

0.0016 m

 

0.02

 

 

Z:

0.0008 m

 

0.03

 

 

 

Easting:

0.0001 m

W-Test:

0.00

 

 

Northing:

0.0005 m

 

0.02

 

 

Height:

0.0018 m

 

0.03

 

 

 

Closing error:

0.0019 m

(1.9 ppm)

Ratio:(1:522792)

 

 

Length:

978.9699 m

 

Loop 10

 

From

To

dX[m]

dY[m]

dZ[m]

Epoch

 

DC-2

GPS-01BR

137.1756

84.7384

-210.0875

05/20/2021 14:15:15

 

GPS-01BR

GPS-01C

-111.8332

-40.3225

34.3250

05/20/2021 14:11:00

 

GPS-01C

DC-2

-25.3441

-44.4176

175.7620

05/20/2021 14:15:15

 

 

X:

-0.0017 m

W-Test:

-0.07

 

 

Y:

-0.0017 m

 

-0.03

 

 

Z:

-0.0005 m

 

-0.02

 

 

 

Easting:

0.0021 m

W-Test:

0.07

 

 

Northing:

-0.0003 m

 

-0.01

 

 

Height:

-0.0012 m

 

-0.02

 

 

 

Closing error:

0.0025 m

(4.3 ppm)

Ratio:(1:230457)

 

 

Length:

571.6165 m

 

Loop 11

 

From

To

dX[m]

dY[m]

dZ[m]

Epoch

 

GPS-01C

GPS-01BR

111.8332

40.3225

-34.3250

05/20/2021 14:11:00

 

GPS-01BR

GPS-02C

171.7190

-4.8972

276.7163

05/20/2021 14:20:00

 

GPS-02C

GPS-01C

-283.5510

-35.4263

-242.3922

05/20/2021 14:20:00

 

 

X:

0.0012 m

W-Test:

0.08

 

 

Y:

-0.0011 m

 

-0.03

 

 

Z:

-0.0009 m

 

-0.06

 

 

 

Easting:

-0.0008 m

W-Test:

-0.05

 

 

Northing:

-0.0007 m

 

-0.04

 

 

Height:

-0.0015 m

 

-0.04

 

 

 

Closing error:

0.0019 m

(2.3 ppm)

Ratio:(1:441092)

 

 

Length:

824.1545 m

 


 

Gọi ngay Mr.Tuấn - 0903.811.775

CÔNG TY CP TƯ VẤN THƯƠNG MẠI DỊCH VỤ KỸ THUẬT NGỌC CẢNH

Địa chỉ: VP: 55 Trần Quốc Toản, P. 8, Q. 3, TP. HCM
CN: 50/2/3B Nguyễn Đình Chiểu, P. 3, Q. Phú Nhuận, TP. HCM
Email: tuanleica99@gmail.com

 

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