Use the same software in the field and in the office.
Sets up the interface to a particular instrument - Total Station, GPS etc.
Establish the orientation parameters for tacheometric surveys.
Traverse and Tacheometric Reductions.
Connect the real-time GPS receiver directly to a laptop/notebook.
Dynamic mapping and setting out can be done in the field using a GPS system which is directly connected to uSMART software. Here are some advantages:
- No need for sketches as the final features comprise the sketch in true ground coordinates.
- Eliminates "gaps" in the Survey as the map/plan is dynamically created in the field.
- Eliminates the time consuming and often tedious task of post processing the field data.
- Simplifies the task of setting out known information as coordinate listings or ASCII files are NOT required i.e. the user can simply snap onto a feature in the drawing e.g. lift shaft on the 10th floor of a building under construction.
- Only the uSMART automated routines need to be done to complete the Survey e.g. break lines, TIN, contouring, sheet placement etc. The drawing of the actual plan can also be done as you are reading your data points.
All of the powerful uSMART Base Mapping routines are available via the GPS i.e. the GPS can be regarded as an absolute 3D mouse or more correctly a 3D digitiser. Routines such as Linear, SPoint, Bank, Structure, etc. are all available. These can also be highly effectively used with the stream settings e.g. following the edge of a road in a vehicle with a GPS while the feature is dynamically captured (e.g. in curve mode) at a user specified minimum and maximum interval with additional points automatically added around sharp curves.
Theodolite (Total Station)
Each observation taken in the field is reduced and passed directly onto the uSMART Base Mapping Module. In this way the map actually "grows" graphically on the screen. All the normal editing and manipulation tools are available. If you want to insert an extra point on the edge of the road for example after the road has already been drawn, this is easily accomplished. The software can be set to pan with each observation taken so that the road always remains in the centre of the screen with no user intervention.
Many of the common problems associated with the post-processing techniques of tacheometric survey are thus eliminated. Some of these are listed below:
- Far less chance of missing any feature as a direct graphical comparison can be made between the CAD drawing and the terrain.
- No need to make sketches; the CAD drawing is the sketch.
- Eliminates "gaps" in the survey in open terrain as they can be graphically identified and immediately filled in.
- The surveyor can position himself at or near the rod thus eliminating misidentification as a result of verbal communication. This is especially so with the self-tracking instruments.
- On returning to the office the tedious task of joining the points is totally eliminated. The contours need only be automatically generated (break lines already exist from the detail observed e.g. edge road, banks) and the final plot produced.
- Reduces or eliminates field checking time.
- No coding of observations is necessary as the particular feature is placed according to the command selected in the software.
- The user need only learn one software package as it is the same in the field and the office.
With this system the surveyor gets many bonus facilities such as being able to set out points both in 2 or 3 dimensions as well as offset points e.g. road staking. Lists of coordinates need not be stored as any graphical object automatically has coordinates for any desired point. It is therefore, for example, easy to graphically identify the lift shaft on the 3rd floor of a building and set this out directly. Points set out can also be observed and recorded.
On returning to the office the contours can be quickly and easily generated and sheets can be placed at any size with user specified title blocks. All grid lines or crosses are automatically drawn and labelled. Title block information can be added with an easy to use dialog interface (see uSMART Base Mapping Sheet for more information).
Users also have the ability to post-process their field observations. These will generally come from an electronic field logging package. All field formats are supported so any of the field packages can be utilised.
This module also contains a very efficient and easy to use traverse reduction routine as well as a very comprehensive tacheometric reduction routine. Virtually every aspect of the output of these two routines is fully configurable to the users' requirements.