EPSG (The European Petroleum Survey Group, http://www.epsg.org/ ) maintains a dataset of spatial reference objects. The SRID (Spatial Reference System Identifier) of the spatial reference system in the OGC standard is consistent with the spatial reference system ID of EPSG. unanimous.
EPSG was established in 1986 and was "reorganized" in 2005 as The OGP Surveying and Positioning Committee, which maintains and publishes the dataset parameters of the coordinate reference system and coordinate transformation descriptions. The dataset is widely accepted and used, distributed through a Web publishing platform, and provides storage files for Microsoft Access databases, and databases such as mySQL, Oracle and PostgreSQL are also available through SQL script files.
The organization publishes a dataset of coordinate reference systems and maintains dataset parameters of coordinate reference systems, as well as descriptions of coordinate transformations. The dataset encodes coordinate reference systems collected worldwide.
Domestic commonly used EPSG coordinate system comparison table:
| EPSG | coordinate system name | central meridian | Remark |
|---|---|---|---|
| 4513 | CGCS2000 / 3-degree Gauss-Kruger zone 25 | 75 | plus number |
| 4514 | CGCS2000 / 3-degree Gauss-Kruger zone 26 | 78 | plus number |
| 4515 | CGCS2000 / 3-degree Gauss-Kruger zone 27 | 81 | plus number |
| 4516 | CGCS2000 / 3-degree Gauss-Kruger zone 28 | 84 | plus number |
| 4517 | CGCS2000 / 3-degree Gauss-Kruger zone 29 | 87 | plus number |
| 4518 | CGCS2000 / 3-degree Gauss-Kruger zone 30 | 90 | plus number |
| 4519 | CGCS2000 / 3-degree Gauss-Kruger zone 31 | 93 | plus number |
| 4520 | CGCS2000 / 3-degree Gauss-Kruger zone 32 | 96 | plus number |
| 4521 | CGCS2000 / 3-degree Gauss-Kruger zone 33 | 99 | plus number |
| 4522 | CGCS2000 / 3-degree Gauss-Kruger zone 34 | 102 | plus number |
| 4523 | CGCS2000 / 3-degree Gauss-Kruger zone 35 | 105 | plus number |
| 4524 | CGCS2000 / 3-degree Gauss-Kruger zone 36 | 108 | plus number |
| 4525 | CGCS2000 / 3-degree Gauss-Kruger zone 37 | 111 | plus number |
| 4526 | CGCS2000 / 3-degree Gauss-Kruger zone 38 | 114 | plus number |
| 4527 | CGCS2000 / 3-degree Gauss-Kruger zone 39 | 117 | plus number |
| 4528 | CGCS2000 / 3-degree Gauss-Kruger zone 40 | 120 | plus number |
| 4529 | CGCS2000 / 3-degree Gauss-Kruger zone 41 | 123 | plus number |
| 4530 | CGCS2000 / 3-degree Gauss-Kruger zone 42 | 126 | plus number |
| 4531 | CGCS2000 / 3-degree Gauss-Kruger zone 43 | 129 | plus number |
| 4532 | CGCS2000 / 3-degree Gauss-Kruger zone 44 | 132 | plus number |
| 4533 | CGCS2000 / 3-degree Gauss-Kruger zone 45 | 135 | plus number |
| 4534 | CGCS2000 / 3-degree Gauss-Kruger CM 75E | 75 | without number |
| 4535 | CGCS2000 / 3-degree Gauss-Kruger CM 78E | 78 | without number |
| 4536 | CGCS2000 / 3-degree Gauss-Kruger CM 81E | 81 | without number |
| 4537 | CGCS2000 / 3-degree Gauss-Kruger CM 84E | 84 | without number |
| 4538 | CGCS2000 / 3-degree Gauss-Kruger CM 87E | 87 | without number |
| 4539 | CGCS2000 / 3-degree Gauss-Kruger CM 90E | 90 | without number |
| 4540 | CGCS2000 / 3-degree Gauss-Kruger CM 93E | 93 | without number |
| 4541 | CGCS2000 / 3-degree Gauss-Kruger CM 96E | 96 | without number |
| 4542 | CGCS2000 / 3-degree Gauss-Kruger CM 99E | 99 | without number |
| 4543 | CGCS2000 / 3-degree Gauss-Kruger CM 102E | 102 | without number |
| 4544 | CGCS2000 / 3-degree Gauss-Kruger CM 105E | 105 | without number |
| 4545 | CGCS2000 / 3-degree Gauss-Kruger CM 108E | 108 | without number |
| 4546 | CGCS2000 / 3-degree Gauss-Kruger CM 111E | 111 | without number |
| 4547 | CGCS2000 / 3-degree Gauss-Kruger CM 114E | 114 | without number |
| 4548 | CGCS2000 / 3-degree Gauss-Kruger CM 117E | 117 | without number |
| 4549 | CGCS2000 / 3-degree Gauss-Kruger CM 120E | 120 | without number |
| 4550 | CGCS2000 / 3-degree Gauss-Kruger CM 123E | 123 | without number |
| 4551 | CGCS2000 / 3-degree Gauss-Kruger CM 126E | 126 | without number |
| 4552 | CGCS2000 / 3-degree Gauss-Kruger CM 129E | 129 | without number |
| 4553 | CGCS2000 / 3-degree Gauss-Kruger CM 132E | 132 | without number |
| 4554 | CGCS2000 / 3-degree Gauss-Kruger CM 135E | 135 | without number |
| 2401 | Beijing_1954_3_Degree_GK_Zone_25 | 75 | plus number |
| 2402 | Beijing_1954_3_Degree_GK_Zone_26 | 78 | plus number |
| 2403 | Beijing_1954_3_Degree_GK_Zone_27 | 81 | 加带号 |
| 2404 | Beijing_1954_3_Degree_GK_Zone_28 | 84 | 加带号 |
| 2405 | Beijing_1954_3_Degree_GK_Zone_29 | 87 | 加带号 |
| 2406 | Beijing_1954_3_Degree_GK_Zone_30 | 90 | 加带号 |
| 2407 | Beijing_1954_3_Degree_GK_Zone_31 | 93 | 加带号 |
| 2408 | Beijing_1954_3_Degree_GK_Zone_32 | 96 | 加带号 |
| 2409 | Beijing_1954_3_Degree_GK_Zone_33 | 99 | 加带号 |
| 2410 | Beijing_1954_3_Degree_GK_Zone_34 | 102 | 加带号 |
| 2411 | Beijing_1954_3_Degree_GK_Zone_35 | 105 | 加带号 |
| 2412 | Beijing_1954_3_Degree_GK_Zone_36 | 108 | 加带号 |
| 2413 | Beijing_1954_3_Degree_GK_Zone_37 | 111 | 加带号 |
| 2414 | Beijing_1954_3_Degree_GK_Zone_38 | 114 | 加带号 |
| 2415 | Beijing_1954_3_Degree_GK_Zone_39 | 117 | 加带号 |
| 2416 | Beijing_1954_3_Degree_GK_Zone_40 | 120 | 加带号 |
| 2417 | Beijing_1954_3_Degree_GK_Zone_41 | 123 | 加带号 |
| 2418 | Beijing_1954_3_Degree_GK_Zone_42 | 126 | 加带号 |
| 2419 | Beijing_1954_3_Degree_GK_Zone_43 | 129 | 加带号 |
| 2420 | Beijing_1954_3_Degree_GK_Zone_44 | 132 | 加带号 |
| 2421 | Beijing_1954_3_Degree_GK_Zone_45 | 135 | 加带号 |
| 2422 | Beijing_1954_3_Degree_GK_CM_75E | 75 | 不加带号 |
| 2423 | Beijing_1954_3_Degree_GK_CM_78E | 78 | 不加带号 |
| 2424 | Beijing_1954_3_Degree_GK_CM_81E | 81 | 不加带号 |
| 2425 | Beijing_1954_3_Degree_GK_CM_84E | 84 | 不加带号 |
| 2426 | Beijing_1954_3_Degree_GK_CM_87E | 87 | 不加带号 |
| 2427 | Beijing_1954_3_Degree_GK_CM_90E | 90 | 不加带号 |
| 2428 | Beijing_1954_3_Degree_GK_CM_93E | 93 | 不加带号 |
| 2429 | Beijing_1954_3_Degree_GK_CM_96E | 96 | 不加带号 |
| 2430 | Beijing_1954_3_Degree_GK_CM_99E | 99 | 不加带号 |
| 2431 | Beijing_1954_3_Degree_GK_CM_102E | 102 | 不加带号 |
| 2432 | Beijing_1954_3_Degree_GK_CM_105E | 105 | 不加带号 |
| 2433 | Beijing_1954_3_Degree_GK_CM_108E | 108 | 不加带号 |
| 2434 | Beijing_1954_3_Degree_GK_CM_111E | 111 | 不加带号 |
| 2435 | Beijing_1954_3_Degree_GK_CM_114E | 114 | 不加带号 |
| 2436 | Beijing_1954_3_Degree_GK_CM_117E | 117 | 不加带号 |
| 2437 | Beijing_1954_3_Degree_GK_CM_120E | 120 | 不加带号 |
| 2438 | Beijing_1954_3_Degree_GK_CM_123E | 123 | 不加带号 |
| 2439 | Beijing_1954_3_Degree_GK_CM_126E | 126 | 不加带号 |
| 2440 | Beijing_1954_3_Degree_GK_CM_129E | 129 | 不加带号 |
| 2441 | Beijing_1954_3_Degree_GK_CM_132E | 132 | 不加带号 |
| 2442 | Beijing_1954_3_Degree_GK_CM_135E | 135 | 不加带号 |
| 2349 | Xian_1980_3_Degree_GK_Zone_25 | 75 | 加带号 |
| 2350 | Xian_1980_3_Degree_GK_Zone_26 | 78 | 加带号 |
| 2351 | Xian_1980_3_Degree_GK_Zone_27 | 81 | 加带号 |
| 2352 | Xian_1980_3_Degree_GK_Zone_28 | 84 | 加带号 |
| 2353 | Xian_1980_3_Degree_GK_Zone_29 | 87 | 加带号 |
| 2354 | Xian_1980_3_Degree_GK_Zone_30 | 90 | 加带号 |
| 2355 | Xian_1980_3_Degree_GK_Zone_31 | 93 | 加带号 |
| 2356 | Xian_1980_3_Degree_GK_Zone_32 | 96 | 加带号 |
| 2357 | Xian_1980_3_Degree_GK_Zone_33 | 99 | 加带号 |
| 2358 | Xian_1980_3_Degree_GK_Zone_34 | 102 | 加带号 |
| 2359 | Xian_1980_3_Degree_GK_Zone_35 | 105 | 加带号 |
| 2360 | Xian_1980_3_Degree_GK_Zone_36 | 108 | 加带号 |
| 2361 | Xian_1980_3_Degree_GK_Zone_37 | 111 | 加带号 |
| 2362 | Xian_1980_3_Degree_GK_Zone_38 | 114 | 加带号 |
| 2363 | Xian_1980_3_Degree_GK_Zone_39 | 117 | 加带号 |
| 2364 | Xian_1980_3_Degree_GK_Zone_40 | 120 | 加带号 |
| 2365 | Xian_1980_3_Degree_GK_Zone_41 | 123 | 加带号 |
| 2366 | Xian_1980_3_Degree_GK_Zone_42 | 126 | 加带号 |
| 2367 | Xian_1980_3_Degree_GK_Zone_43 | 129 | 加带号 |
| 2368 | Xian_1980_3_Degree_GK_Zone_44 | 132 | 加带号 |
| 2369 | Xian_1980_3_Degree_GK_Zone_45 | 135 | 加带号 |
| 2370 | Xian_1980_3_Degree_GK_CM_75E | 75 | 不加带号 |
| 2371 | Xian_1980_3_Degree_GK_CM_78E | 78 | 不加带号 |
| 2372 | Xian_1980_3_Degree_GK_CM_81E | 81 | 不加带号 |
| 2373 | Xian_1980_3_Degree_GK_CM_84E | 84 | 不加带号 |
| 2374 | Xian_1980_3_Degree_GK_CM_87E | 87 | 不加带号 |
| 2375 | Xian_1980_3_Degree_GK_CM_90E | 90 | 不加带号 |
| 2376 | Xian_1980_3_Degree_GK_CM_93E | 93 | 不加带号 |
| 2377 | Xian_1980_3_Degree_GK_CM_96E | 96 | 不加带号 |
| 2378 | Xian_1980_3_Degree_GK_CM_99E | 99 | 不加带号 |
| 2379 | Xian_1980_3_Degree_GK_CM_102E | 102 | 不加带号 |
| 2380 | Xian_1980_3_Degree_GK_CM_105E | 105 | 不加带号 |
| 2381 | Xian_1980_3_Degree_GK_CM_108E | 108 | 不加带号 |
| 2382 | Xian_1980_3_Degree_GK_CM_111E | 111 | 不加带号 |
| 2383 | Xian_1980_3_Degree_GK_CM_114E | 114 | 不加带号 |
| 2384 | Xian_1980_3_Degree_GK_CM_117E | 117 | 不加带号 |
| 2385 | Xian_1980_3_Degree_GK_CM_120E | 120 | 不加带号 |
| 2386 | Xian_1980_3_Degree_GK_CM_123E | 123 | 不加带号 |
| 2387 | Xian_1980_3_Degree_GK_CM_126E | 126 | 不加带号 |
| 2388 | Xian_1980_3_Degree_GK_CM_129E | 129 | 不加带号 |
| 2389 | Xian_1980_3_Degree_GK_CM_132E | 132 | 不加带号 |
| 2390 | Xian_1980_3_Degree_GK_CM_135E | 135 | 不加带号 |