ImpulseRadar PinpointR Manual de usuario

ImpulseRadar PinPointR User Manual V1.5.1

PinPointR

User manual

ImpulseRadar PinPointR User Manual V1.5.1 
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Content 
About this manual................................................................................................................................... 4 
Hardware overview ................................................................................................................................ 5 
GPR unit................................................................................................................................................... 5 
Connector panel.................................................................................................................................. 6 
Battery................................................................................................................................................. 6 
Push-cart.............................................................................................................................................. 7 
GPR unit removal procedure........................................................................................................... 9 
Odometer (wheel encoder)............................................................................................................. 9 
GPS mounting kit............................................................................................................................... 10 
Software overview................................................................................................................................ 11 
Wi-Fi and connectivity....................................................................................................................... 11 
Avoiding Wi-Fi and connectivity issues ............................................................................................. 12 
GPR unit Wi-Fi lock........................................................................................................................ 12 
Multiple Devices............................................................................................................................ 13 
Multiple GPR units......................................................................................................................... 13 
Key Wi-Fi actions ............................................................................................................................... 13 
ViewPoint Installation ........................................................................................................................... 13 
Security note ..................................................................................................................................... 13 
Wi-Fi pairing and password initialization.............................................................................................. 14 
Using ViewPoint .................................................................................................................................... 15 
Switching between different GPR units ............................................................................................ 15 
Preferences and Settings................................................................................................................... 15 
Description of GPR unit settings:................................................................................................... 16 
Description of user preferences:................................................................................................... 17 
Projects.............................................................................................................................................. 17 
Running a single line project and associated functionality........................................................... 18 
GPS-symbols and function............................................................................................................. 19 
Wheels........................................................................................................................................... 20 
Data viewing and adjustment ........................................................................................................... 20 
Markers ............................................................................................................................................. 22 
Generate PDF Summery and KMZ file............................................................................................... 23 
Restoring missed traces .................................................................................................................... 23 
Multi-line project........................................................................................................................... 23 
GPS-projects .................................................................................................................................. 27 
Viewing files ...................................................................................................................................... 27 

ImpulseRadar PinPointR User Manual V1.5.1

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Note on survey speed and settings ................................................................................................... 27

Appendix A –Specifications .................................................................................................................. 29

Appendix B –File-formats ..................................................................................................................... 30

Appendix C –GPS .................................................................................................................................. 33

Appendix D –Regulatory notices .......................................................................................................... 34

ImpulseRadar PinPointR User Manual V1.5.1

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About this manual

The ImpulseRadar PinPointR is a state-of-the-art, self-contained Ultra-Wide Band (UWB) Ground

Penetrating Radar (GPR) system. The dual frequencies and mechanical design combined with the

various accessories like the GPS mounting kit make the system suitable for different kind of locating

and mapping applications.

For information on other applications and/ or configurations, please contact your local ImpulseRadar

representative, or contact our sales team at sales@impulseradar.se

This manual is structured as follows:

•Section 1 –Hardware systems and accessories

•Section 2 –Software data acquisition and control

•Section 3 –Appendices additional notes and technical information

We welcome your feedback concerning this manual and its content. Please send your comments or

suggestions to us at [email protected]

ImpulseRadar PinPointR User Manual V1.5.1

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Hardware overview

The ImpulseRadar PinPointR is a dual-channel GPR system based on a modern real-time sampling (RTS)

technology platform, offering state-of-the-art data acquisition capabilities. The PinPointR system

incorporates two separate GPR-channels, co-located at the same mid-point, as well as an in-built GPS

as standard.

GPR unit Centre Frequency

•PinPointR 400 MHz and 800 MHz

The PinPointR is a push-cart system supported by several accessories, as shown in Figure 1 below.

Figure 1 System overview

Data collection is managed over an Ethernet Wi-Fi link and a suitable Android device running the

ImpulseRadar ViewPoint App (ViewPoint). With ViewPoint, the operator may collect single line data,

albeit with two frequencies, or a few different types of multi-line projects. Whether a single line of

project-based data has been collected, datasets may be directly imported into the ImpulseRadar

CrossPoint software (CrossPoint) for processing and evaluation in a Windows environment.

For information on other applications or configurations, please contact your local ImpulseRadar

representative, or contact our sales team at sales@impulseradar.se

GPR unit

The GPR unit has a field-rugged design equipped with both a low and high-frequency channel, making

it possible to detect shallow and deep utilities simultaneously. Power is supplied via a removable and

ImpulseRadar PinPointR User Manual V1.5.1

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rechargeable Li-ion battery, which is conveniently located on the top of the unit. Figure 2 shows the

location of the on/off button and the connector sockets for odometer and external GPS.

The unit also includes a high-quality differential GPS receiver. There is no external connection to this

component, although markings on the housing indicate the approximate internal location.

Figure 2 PinPointR GPR unit with a battery attached

Connector panel

Refer to the arrangement shown in Figure 2:

•Silver –On/off button. Press and hold the button for approximately two seconds to switch on

the unit. Once on, the button glows blue. A subsequent press will switch off the GPR unit.

•Blue –External GPS. It allows the connection of an external GPS to provide higher precision

positioning. Communication is via a serial RS232 link using the NMEA 0183, V2 protocol, and

GGA data string.

•Black –Measuring Wheel. It allows the connection of the odometer cable (wheel encoder)

from the push-cart.

All cable connectors are of high-quality from Yamaichi. To insert or remove a cable connector, hold the

connector sleeve then gently push or pull the connector straight without turning. Each connector has

a key slot to prevent damage if incorrectly connected into the wrong socket.

Battery

The PinPointR is powered via a removable and rechargeable Li-ion battery, which is a nominal 8.7 Ah/

96.57 Wh, providing approximately 7-hours of continuous operation.

Note: ImpulseRadar Li-ion batteries are approved according to UN38.3 and can, therefore, be safely

hand-carried on passenger aircraft or shipped by air cargo.

ImpulseRadar PinPointR User Manual V1.5.1

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The battery fits securely to the top of the GPR unit. To insert, position it on the mounting plate and

slide it gently into place until you hear the locking pin engage (click). To remove, pull the locking pin

out, then gently slide the battery out and off from the mounting plate, as shown below in Figure 3.

Figure 3 Exchange the battery

Push-cart

The PinPointR push-cart allows the GPR unit to be manoeuvred easily over a range of surfaces. It

incorporates several useful features including a height-adjustable tray for the GPR unit itself, as well

as a foldable handle assembly, and a foot brake.

The GPR unit is mounted in a tray that is suspended under the push-cart hood by adjustable support

straps, as shown in Figure 4 below. This arrangement allows the unit to be positioned on or very close

to the ground’s surface and ‘float’ freely vertically while following the contour of the ground, but also

move over bumps and other small obstacles. When you receive the PinPointR system, the GPR unit

will already be fitted into the tray, but it is possible to remove it. However, this should only be

necessary should the tray become worn through prolonged and direct contact with the ground, or in

the rare instance that the GPR unit fails. Should this be necessary, follow the removal procedure

outlined below in conjunction with Figure 6.

ImpulseRadar PinPointR User Manual V1.5.1

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Figure 4 PinPointR push-cart features

The PinPointR push-cart incorporates a foldable handle assembly, so when the system is not in use, it

can be folded for easier storage and transportation, as shown above in Figure 4. When unfolded for

use, the handle assembly is fixed in place using a retaining screw. Depending on the model you have,

this screw may be a threaded steel bolt that is fully removable, or on newer models, the screw is held

in place within the handle assembly by a spring mechanism, as shown in Figure 5.

Figure 5 Retaining screw adjustment

Note: To ensure the proper operation of the spring-loaded retaining screw; you are advised to

periodically lubricate the retaining screw and the threaded insert into which in screws. How often will

depend on environmental factors, but should form part of general preventative maintenance for all

mechanical parts of the push-cart.

The push-cart also incorporates a simple brake mechanism on the rear-right wheel, which is easily

engaged or disengaged using your foot.

ImpulseRadar PinPointR User Manual V1.5.1

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Note: for safety, you are advised to engage the wheel brake any time the system is not under your

direct control, especially when working on a gradient.

GPR unit removal procedure

The following sequence is illustrated below in Figure 6.

1. Grip the wheel encoder connector as the picture shows and pull it out.

2. Remove the two rear and the front straps from the snap connectors and lift the cart-hood.

3. Disconnect the M5 screws that hold the GPR unit to the tray and slide the GPR unit out from

the skid tray.

4. Close the push-cart hood and refit the rear and front straps into the snap connectors.

5. Adjust the front and back straps to obtain the desired height.

6. Connect the odometer cable again to the socket with the black bezel.

Note: before lifting the push-cart hood, remember to disconnect the odometer cable first. Also, it is

essential to loosen the front strap to avoid tension on the strap connection point.

Figure 6 GPR unit fitting and height adjustments

Odometer (wheel encoder)

When the push-cart is moved over the survey area, the distance travelled is measured using an

odometer (wheel encoder), via a connection to the rear-right wheel. This odometer is also used to

trigger the GPR measurement process. Depending on the model you have, the odometer mechanism

may be via a belt drive (o-ring) or direct-drive. Older models use the belt-drive, where the odometer

is located above the centre of the wheel shaft and connected to it via a rubber o-ring. For newer models

using the direct drive, the odometer is mounted centrally and directly to the wheel axel, so no o-ring

is necessary.

If necessary, the o-ring can be replaced for belt-driven models by removing the wheel, as shown in

Figure 7. For this purpose, a spare o-ring is cable-tied to the encoder cable under the push-cart hood.

Note: when refitting the wheel, use blue Loctite or equivalent to help secure the M6 retaining screw.

ImpulseRadar PinPointR User Manual V1.5.1

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Figure 7 Belt or Direct Drive encoder and wheel assembly

GPS mounting kit

An optional GPS mounting kit is available for the push-cart

to support the connection of external GPS receivers, as

shown in Figure 8 (GPS receiver not included). This kit

contains extension poles, support arms, and an RS232 serial

cable to facilitate the connection between the GPR unit and

an external GPS receiver.

The GPS cable plugs into the GPR unit via the external GPS

socket (blue bezel), while the other end is terminated with a

standard 9-pin D-sub connector (male). When connecting an

external GPS receiver, it must have an RS232 serial output

via a wired connection. TheGPS receiver should have its own

RS232 serial cable that plugs into it, while the other end is

terminated with a standard 9-pin D-sub connector (female).

With the male and female D-sub connectors are joined, a

wired RS232 serial link is established between the external

GPS receiver and the GPR unit.

Refer to Appendix C –GPS for a description of the external

GPS cable and pin-outs.

Figure 8 GPS mounting kit assembly

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