{"id":4596,"date":"2023-11-17T03:05:22","date_gmt":"2023-11-17T03:05:22","guid":{"rendered":"https:\/\/skynetwave.com\/?p=4596"},"modified":"2023-11-17T03:31:14","modified_gmt":"2023-11-17T03:31:14","slug":"gps-land-surveying","status":"publish","type":"post","link":"https:\/\/skynetwave.com\/gps-land-surveying\/","title":{"rendered":"GPS Land Surveying: A Comprehensive Guide"},"content":{"rendered":"\n
With the technology being so accessible, how can everyday people use GPS land surveying to improve their lives? <\/p>\n\n\n\n
These days, it\u2019s hard to find a mobile smart device that doesn\u2019t have direct access to global positioning and navigation satellite systems.<\/p>\n\n\n\n
Depending on where you are, you should be able to connect to the North American Global Position System (GPS) or Global Navigation Satellite System (GNSS)<\/a>.\u00a0<\/p>\n\n\n\n Your smart devices can use these systems for more than just identifying your current location.<\/p>\n\n\n\n This guide will show you how to effectively use GPS for land surveying.<\/p>\n\n\n\n Land surveying describes measurements and recording data concerning a specific piece of land.\u00a0<\/p>\n\n\n\n It typically involves using physical markers and recording the distance and angles between them. <\/p>\n\n\n\n Surveying is used in fields and applications such as cartography (map making), architecture, engineering, and property development. <\/p>\n\n\n\n As with any other practice, there are different types of surveying. The two main categories are:<\/p>\n\n\n\n GPS uses a geodetic system to attain its coordinates and make its measurements. To be precise, it uses the World Geodetic System (WGS84)<\/a> as its reference system.\u00a0<\/p>\n\n\n\n GPS is particularly suitable for surveying because it can directly obtain the longitude and latitude coordinates<\/a>.\u00a0<\/p>\n\n\n\n This eliminates the need to manually measure the distances and angles between fixtures or points.<\/p>\n\n\n\n Albeit, GPS technology hasn\u2019t completely replaced all other modes and methods of surveying. <\/p>\n\n\n\n Surveyors sometimes deploy it with traditional tools and resources to produce a more complete picture.<\/p>\n\n\n\n While you can perform simple or preliminary surveying using a GPS-enabled smartphone and compass, professionals use more intricate tools. The receivers they use are far more sophisticated and powerful.<\/p>\n\n\n\n GPS uses a constellation of interconnected satellites that communicate using radio frequencies. <\/p>\n\n\n\n When a receiver initiates a request, at least four satellites respond. Each satellite will send its position concerning the receiver.<\/p>\n\n\n\n The satellite will also send a timestamp and the distance between the receiver and itself. <\/p>\n\n\n\n The receiver or GPS software can then use this data to ascertain the longitude, latitude, and height of the receiver.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p>\n\n\n\n There are different GPS surveying techniques. They all more or less rely on the above GPS functionality.<\/p>\n\n\n\n This method uses two surveying points. The GPS satellites record the distance or position of these points over an established period.<\/p>\n\n\n\n Because of the Earth\u2019s orbit and curvature, distortions in the data can occur. Hence, the static GPS baseline method takes multiple measurements over time to combat inaccuracies.<\/p>\n\n\n\n Incidentally, it has proven accurate with about a 30 mm margin for error.\u00a0\u00a0<\/p>\n\n\n\n GPS Receiver Base Station<\/em><\/p>\n\n\n\n Real-Time Kinematic observations are not all that different from static GPS baseline measurements. <\/p>\n\n\n\n Instead of two static receivers, this method uses a single static base station and mobile receiver (rover). <\/p>\n\n\n\n This allows us to measure the distance between the base station and multiple points. We typically perform these measurements in quick succession over long periods. <\/p>\n\n\n\n In real-time, we collect the measurements between the base and rover station for efficiency.\u00a0<\/p>\n\n\n\n Because we know the exact position of the base station, we can quickly amend or correct any discrepancies in the measurements. <\/p>\n\n\n\n Real-Time Kinematic Observation-based GPS surveying is almost as accurate as baseline measurements. However, it has a 20-kilometer range limit.\u00a0\u00a0<\/p>\n\n\n Engineer Setting Up a Reciever<\/em>\u00a0\u00a0\u00a0<\/p>\n\n\n\n While stationary, Real-Time Kinematic Observation base stations are temporary. Base stations in a CORS system are permanent.<\/p>\n\n\n\n Ultimately, CORS works exactly like the above-mentioned techniques. However, it allows us to measure the fixed-based station anywhere in a district.<\/p>\n\n\n\n Again, the reference receiver should be within a 20-kilometer radius of the base station.\u00a0<\/p>\n\n\n\n We use CORS in applications such as surveying mining sites, government building projects, establishing wide area network infrastructure and other long-term engineering projects.\u00a0<\/p>\n\n\n\n Why use GPS surveying in place of traditional or more established forms? <\/p>\n\n\n\n Firstly, GPS surveying is reliable and flexible. Both satellite television and the internet have a bad reputation for service interruptions during bad weather<\/a>.<\/p>\n\n\n\n As such, shouldn\u2019t we worry about GPS facing outages or being non-functional due to visibility issues caused by weather anomalies or other connection-based problems?<\/p>\n\n\n\n GPS satellites can still ascertain their last-known or current positions and determine the distance.\u00a0<\/p>\n\n\n\n This makes GPS especially ideal for surveying coastal locations and waterways with very little land to use as reference points.\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/p>\n\n\n\n You can also take the measurements remotely using drones as rover stations. This makes GPS surveying safer – at least potentially.\u00a0<\/p>\n\n\n\n GPS and Drone Land Surveying<\/em><\/p>\n\n\n\n As we previously mentioned, GPS receivers and antennae are extremely mobile. GPS equipment for land surveying isn\u2019t the exception to the rule either. While they\u2019re typically larger, they are still fairly portable.<\/p>\n\n\n\n Like Starlink’s RV package, you can carry most of them in a backpack or mount them on top of a vehicle.\u00a0\u00a0<\/p>\n\n\n\n Land surveying through GPS is substantially faster than older methods. You can retrieve and compare measurements within minutes. This increases the productivity and speed of construction and engineering projects.<\/p>\n\n\n\n Satellite Constellation Orbiting Earth<\/em><\/p>\n\n\n\n No technology is perfect. There are downsides and disadvantages to GPS land surveying. For instance\u2026.<\/p>\n\n\n\n Receivers and base stations require a clear line of communication. Cloudy weather isn\u2019t the only possible impedance, either.<\/p>\n\n\n\n Antennas and stations must be placed in areas free from large trees and a concentration of tall buildings. <\/p>\n\n\n\n GPS surveying technology can be extremely accurate when placed in the right hands.\u00a0<\/p>\n\n\n\n However, low-grade equipment can yield inaccurate results, especially in unskilled or inexperienced hands.\u00a0<\/p>\n\n\n\n As such, firms and those in charge of the measurement process must utilize well-maintained, top-grade equipment.\u00a0<\/p>\n\n\n\n Moreover, you must hire people with sufficient experience and expertise.<\/p>\n\n\n\n Engineer Setting Up GPS Receiver<\/em><\/p>\n\n\n\n Top-grade GPS equipment can be costly. Sometimes, managers and firms may try to acquire cheaper alternatives. <\/p>\n\n\n\n Unfortunately, if you want the right expertise along with quality tools, you have to pay for it. <\/p>\n\n\n\n GPS land surveying will continue to be employed in commercial sites and roadwork for the foreseeable future. <\/p>\n\n\n\n The GPS isn\u2019t the only satellite system you can use for surveying. Galileo<\/a> may even be more accurate for land surveying than GPS is.\u00a0<\/p>\n\n\n\n Regardless of which satellite system you use, the benefits are evident. Consequently, we can expect to see this technology improve in the future. <\/p>\n","protected":false},"excerpt":{"rendered":" With the technology being so accessible, how can everyday people use GPS land surveying to improve their lives? These days, it\u2019s hard to find a mobile smart device that doesn\u2019t have direct access to global positioning and navigation satellite systems. Depending on where you are, you should be able to connect to the North American … <\/p>\nWhat is GPS Land Surveying<\/h2>\n\n\n\n
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How Does GPS Surveying Work?<\/h2>\n\n\n\n
Static GPS Baseline<\/h3>\n\n\n\n
The data is then fed into computer software that calculates and mathematically deduces the distance between these points.\u00a0<\/p>\n\n\n\n<\/figure>\n\n\n\n
Real-Time Kinematic Observations<\/h3>\n\n\n\n
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Continuously Operating Reference Stations (CORS)<\/h3>\n\n\n\n
Advantages of GPS Surveying<\/h2>\n\n\n\n
Flexible and Reliable<\/h3>\n\n\n\n
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Portable<\/h3>\n\n\n\n
Speed<\/h3>\n\n\n\n
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Disadvantages of GPS Surveying<\/h2>\n\n\n\n
Requires Clear-Line of Communication<\/h3>\n\n\n\n
Accuracy is Dependant on Equipment and Operators<\/h3>\n\n\n\n
<\/figure>\n\n\n\n
GPS Equipment Can Be Expensive <\/h3>\n\n\n\n
GPS Land Surveying: Conclusion<\/h2>\n\n\n\n