Specification :

Sokkia SRX 5" Fully Robotic, Auto-tracking Total Station with Bluetooth Technology, Red-tech EX
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Sokkia SRX Robotic Total Station

Manufacturer's Suggested List Price: $24,995

comes with Carlson 600+ RTS

only $480 per month

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The SRX from Sokkia is a fully-robotic, fully-tracking and auto-pointing robotic total station, with on-demand target reacquisition.

Sokkia's fully-tracking SRX uses the latest robotic technology. Sokkia's patented RED-tech EX technology offers the highest precision on all ranges of measurements. Sokkia's flagship Total Station has the latest technology on-board to make single-operator measuring quick, easy and accurate. The power and familiarity of a Windows CE operating system is on-board the SRX.

Sokkia's SRX has Bluetooth wireless technology for cable-free use, making this single-operator Total Station even more convenient. Multiple data interfaces, including USB and Compact Flash, make data in the field easy to transport back to the office. Saving data is easier than ever before with the options of USB or compact flash.

Sokkia's developers didn't stop there; they also enhanced the encoder with IACS technology. Groundbreaking new Independent Angle Calibration System (IACS) provides extremely reliable angle measurement with unprecedented stability.

You'll get these other items in the Package

# Sokkia Heavy Duty Wood Tripod
# 8 ft. Prism Pole

Redefining Robotics!!!
ro·bot·ics (r-bt'iks) n. 1. Intelligent instrument with the
ability to follow users walking behind objects. 2. Newest technology
including precise, long-range, reflectorless measurement and
patented IACS and RED-Tech EX technology. 3. Instrument with
multiple data interfaces including USB and Compact Flash.

RED-Tech EX
--->Enhanced, Extended performance

* Enhanced performance:
o The EDM beam size now changes to suit the target type and conditions for observation
* EXtended Range:
o Range for all measurement modes has been increased

Reflector (AP01 / 360º Prism ATP1)

Range AP01 : 1.3~5000m (average atmospheric condition)

: 1.3~6000m (good atmospheric condition)

Range ATP1 : 1.3~1000m (average atmospheric condition)

Accuracy : 1.5mm+2ppm* (1� instrument)

: 2mm+2ppm (1�~5� instrument)

Beam spot : ¦200mm @100m

Beam divergence : +/-3.5'

*with precision prism CPS12

Sheet (90x90mm)

Range : 1.3~500m

Accuracy : 3mm+2ppm (1�~5� instrument)

Sokkia SRX Features

* Because it's the time spent between points that's important.
* Stress-Free Complete Remote Control RED-tech EX - Precise Distance Measurement over a Wide Range of Situations Encoders Enhanced with IACS Technology Multiple Data Interfaces Fully Wireless
* STRESS-FREE COMPLETE REMOTE CONTROL
SRX eliminates the problems of previous remote control systems, which were often stressful and time-consuming to use.With SRX, there’s: - No more waiting for the total station to lock on to the prism - No more lost targets and unreliable tracking - No more accidental sighting of other reflective objects SRX achieves “stress-free complete remote control� with a combination of SRX series auto-tracking and an RCPR3 on-demand remote control system. This powerful combination eliminates operator stress and increases productivity immediately.
* On-Demand Remote Control System
The On-demand Remote Control System emits a laser fan beam that is detected by the RC detector unit in the SRX handle. SRX quickly rotates in the direction of the prism, auto-points and starts measurement right away. The RC-PR3 unit is equipped with a directional sensor to ensure that SRX always rotates in the shortest direction, dramatically speeding up one-touch target acquisition.
* Quick Start!
Simply press the measurement key and SRX will rotate toward the prism and immediately start measurement. SRX is available in both full robotic and upgradeable auto-pointing configurations.
* Focus on Where You’re Going!
With SRX, you can smoothly continue measurement even if buildings, trees or passing traffic interrupt the line of sight. Even the roughest terrain poses no problem for SRX. All you need to do is pay attention to your footing and SRX will take care of the rest. If target loss should occur, press the measurement key and the on-demand remote control unit will automatically capture the prism using the on-board directional sensor, allowing you to continue without missing a beat.
* False Sighting Recovery
If SRX gets caught sighting another reflective object, the ondemand remote control system quickly calls it back to the prism. Recovery and measurement are done at the push of a button.

Angles

The angle measurement system relies on Sokkia’s tried and true absolute encoder system, but with a new twist to the design. Sokkia’s engineers developed a patent-pending Independent Angle Calibration System (IACS) for the SRX. By virtue of having known angles that are fixed in the encoder system, the instrument can self-calibrate its encoders and apply corrections to the observed value after a complete observation of all its graduations over 360o on the horizontal and vertical circles. Sokkia claims to be able to reduce angular errors using this methodology to below 1 arc second; in fact, the smallest least count available with the SRX1 and SRX2 models is 0.5". Because this self-calibration system does not rely on external references, Sokkia claims that the instrument can be used as a standard to calibrate other instruments.

Robotic Functions

In the auto tracking department, Sokkia has added some nice touches. The tracking system covers a broader area than what is covered by looking through the telescope. So the system will acquire the target even when the prism is near the telescope field of view but not within it. The auto pointing (or target centering) function uses a high speed area CCD (charge coupled device) running at 200 frames a second to recognize and calculate the relationship of the target’s position to the cross hairs. Then, depending on the user’s preference, the system will either (1) calculate the angular offset to the target and record the current angle values after adjusting for those offsets as the measurement data, or (2) pass the information to the servo motors to move the cross hairs exactly to the point before recording the angular values. Sokkia’s engineers claim that both methods produce equivalent results. The former method is obviously faster, but many surveyors prefer to see the cross hairs on the target before they are satisfied that the measurement is correct.
Sokkia’s technology for the tracking function is patent-pending as well. Taking advantage of the CCD’s fast imaging, the system compares the terrain with the target present in the foreground to quickly center on it. This is combined with sophisticated predictive software to find “lost� prisms. Incidentally, the prism is the ATP1 360o prism (also patented), which appears to look like competitors’ prisms, but is significantly different. First, it has a -7 mm offset. Some may see this as a negative, but it is necessary due to the physics involved in reducing angular errors (both horizontally and vertically) when sighting to it that are inherent in other 360o prism systems. Hopefully, more technical information on this will become available as Sokkia gears up for worldwide distribution of the product.
Communication between the total station and data collector to “drive� the total station uses Bluetooth 1, an implementation of Bluetooth technology that has not previously been offered in total stations. It allows communication per the Bluetooth standard up to 100 m. According to Sokkia’s engineers, this implementation allows ranges to several hundred meters.
To use the SRX in addition to the ATP1 prism on the pole, a data collector is offered with Bluetooth 2 (10 m range) or a cable to connect to the RC-PR3, which is also on the pole. The RC-PR3 has a Bluetooth 1 transceiver, a Bluetooth 2 transceiver, antenna, batteries and an infrared fan beam transmitter. When operational situations require directing the total station to find the prism, the “on-demand� system turns on the fan beam while simultaneously informing the total station to search for the fan beam. The receiver mounted in the handle of the total station then detects and provides feedback to the servo motors to turn the instrument in the appropriate direction until the regular auto tracking technology comes into play. Time to target is minimized by the incorporation of an electronic compass and clinometer inside the RC-PR3, providing angular information so the instrument always rotates in the shortest direction towards the target.

EDM
The SRX boasts improved Sokkia EDM reflectorless technology--called Red-Tech EX--featuring a coherent red laser EDM that uses phase modulation to generate accurate distances. Resolution is potentially increased by using a fine measuring wavelength of only 0.8 m, corresponding to a modulation frequency of 185 MHz. The instrument uses a total of five measuring frequencies. The optics of the instrument for projecting the laser (which also serves as the pointing laser when desired) keeps the laser spot at a smaller dimension at longer distances (~500 m) without making it too small for short-range measurements. When switched to prism mode, a diverging lens is added that broadens the EDM beam to +/-3.5 arc minutes to enable easier finding of the prism at all distances. New for Sokkia is a feature that monitors the random errors in the EDM measurement, and increases the number of repetitions until the desired standard deviation is reached. Under difficult measuring conditions, this means that measurements can take longer, but the user is assured of their precision.
The instrument is specified as having a range of 500 m, with a minimum distance of 0.3 m when measured reflectorless to the white side of a standard Kodak Gray Card. Single prism range is 6,000 m. EDM accuracy is specified at +/-(3 mm + 2 ppm) without prism, and +/-(2 mm + 2 ppm) with prism, except for the SRX1 model, which has a distance accuracy of +/-(1.5 mm + 2 ppm).

Additional Features

Although this product profile is not intended to be a comprehensive description of the SRX, the following is a list of additional features that are found on the instrument. The SRX is environmentally protected to an IP64 standard. Its variable speed tangent screws are electronic with mechanical resistance to feel more like mechanical tangent screws. Additionally, the total station features 64 Mb of onboard memory with more than 20 Mb available for data; serial and USB (slave and host) ports; a one-quarter VGA backlit touchscreen display; 32 alphanumeric backlit keys that can be dimmed; Compact Flash card support for up to 1 Gb; and a green/red guidelight for stakeout work with variable flash speeds so that it can be used even if the rod person is colorblind.

Two batteries are furnished standard with the instrument, enabling two to four hours of operating time per battery. When the SRX is in “native mode,� workflow for functions such as basic measurement, stakeout, and station and backsight setup can be viewed as a flow chart, and the step that the user wants to access can be selected simply by touching the appropriate box in the chart.

* More Features of the SRX
* Completely new environmental-friendly design
* New motors and jog dials for precise positioning and accurate aiming
* Side mounted trigger key
* New precise and reliable absolute encoders
* New dual-mode Auto-pointing and Auto-tracking
* New enhanced On-Demand Remote Control System
* Integrated long-range Bluetooth wireless technology
* New Enhanced EXtended reflectorless technology
* New touch screen color display
* Windows CE 5 operating system
* New On-board software
* Compact Flash Card support (up to 1GB) and USB ports
* Serial data/power port.
* Flexible power system
* Dust proof and waterproof construction even when external devices are connected

*

ATP1 360Ú Prism
No matter which way you sight it, Sokkia's unique ATP1 360Ú prism plays an important role in high-precision measurement by minimizing sighting error. The focally aligned 6-piece ATP1 offers the industry's best accuracy. Why set your sights on anything less than the best?
SRX Physical Specifications

*
Featuring advanced protection against water and dust, SRX is ideal for use in inclement weather, humid environments, or on dusty work sites. Dust and water proof environment protection is kept even when the external battery or the data collector are connected.