Installation and configuration

This chapter elaborates the procedures for the successful installation and configuration of the beRTK® in the HEIFU® ecosystem. Should you have any doubt, please contact Beyond Vision’s technical support.

beRTK® setup

To prepare the base station to perform well, you should follow the instructions below. You won’t be needing any tools besides the ones that are provided by Beyond Vision base station kit.

Initially, you should charge the batteries (please see section Device Care).

Note

Please be aware that for safety reasons, the batteries are shipped at storage levels. This means that they are at nearly half their capacity and should be charged before their first use.

After charging the batteries, you should insert them in the tray provided for each of them, taking care that there is only one way to insert them.

Fig. 108 Battery insertion in the beRTK®

Alternatively, you can connect the external wall adapter to run the beRTK® on mains power, if available. You should use the back power connector for this purpose.

Now, you can turn your beRTK® on and profit from the new acquisition.

If it is the first time you turn the beRTK® on or if you need to adjust any parameter, you should follow the instructions presented in the next section.

beRTK® configuration

In order to be able to configure the RTK base Station you should, after turning it on, connect to the RTKBASE SSID (the default password is: 1123581321) and access the following web site: 192.168.4.1

You should get the screen from the image bellow.

Fig. 109 Home Page

The Web RTK Base Configurations platform allows to do the following interactions with the system: * Check current status * Set the base position

• Manually

• Survey

• Configure Corrections messages output

• Connect to a Wi-Fi Network

• Allow to send raw configuration commands

• NTRIP stream configuration (needs internet connection to be used)

• Control the logger

• Configure the receiver serial ports and some global system configurations.

Status

The status page presents the following information regarding the GNSS receiver. The fields with (*) are only shown if the Position Mode is [Survey In].

Field	Values/Description
Position Mode	States if the current position is: [Survey In] [Manual]. Survey In–The Receiver computes its position using the previous ones. Manual – The position was set by the user on the “Set Position Manual” page
1.1 Survey Status (*)	States if survey is: [Not Running] or [Running]
1.2 Survey Time (*)	Survey duration
1.3 Survey Accuracy (m)(*)	Mean survey in 3D standard deviation
1.4 Survey Current Base Coordinates ECEF (cm) (*)	Mean Base position ECEF coordinates obtained through Survey In
Base Coordinates	Current Base coordinates
DOP (m)	Current dispersion of position
Number of Satellites	Number of satellites currently being tracked
Fix Type	This status is composed by two parts, the prefix: [no fix] [dead reckoning only] [2D-fix] [3D-fix] [GNSS + dead reckoning combined] [time only fix] The suffix can be any of those: [Good Pos.] – position is good to use [Not Good Pos.] – position is not good to use; [With Differential Corrections] – is receiving correction data.

Set Position Survey

This mode can be useful if the position where the base is going to be set is not known. This combined with a correction stream, allows the user to have a fast and precise base position acquisition. On this mode, the receiver computes its position using a computed mean of previous positions.

The following figure depicts the two parameters of the survey, the survey duration and the desired maximum 3D standard deviation. Only when the two conditions are reached, the position is considered accepted.

Fig. 110 Set Survey In mode

Manually setting the position

If the user knows the position where the base station is going to be installed, he can set it manually, avoiding the need of waiting for the Survey to be done.

It is possible to set the position on ECEF or LLA referential. The set positions can be accessed on the Saved Positions list.

Fig. 111 Page to set the position manually

Set RTCM Messages output

To optimize the amount of data sent through the radio, it is possible to enable/disable the messages and specific output rates. You should input in this field the desired ratio between the navigation rate and the RTCM Messages rate. For example, if the navigation rate is 10Hz, inputting a value of 10 on this field, the RTCM Messages rate will be 10Hz/10 = 1Hz.

Fig. 112 RTCM Messages configuration window

Set Wi-Fi Configuration

The base can connect to an available Wi-Fi network to allow reception of NTRIP correction data.

This page also provides the current available Wi-Fi SSIDs and, if connected, the base IP on that network.

Fig. 113 Setting the Wi-Fi configuration

Raw configurations

This option allows the user to perform advanced configuration of the RTK base chip, the u-Blox F9P. These configurations can be done using the raw syntax of the chip.

You can also send files with multiple commands for multiple configurations.

Warning

The raw configurations interface should only be used by an advanced user.

Fig. 114 Raw configuration window

NTRIP stream

The base station provides a wireless link that allows you to connect to an available NTRIP network making it possible to use any NTRIP stream in the area.

Fig. 115 NTRIP Configuration window

Logger

When it is not possible to use NTRIP streams combined with the survey mode or the base position is unknown and a precise position is needed, the only solution is to log the raw data and then post process it.

Fig. 116 Logger enabler window

Receiver configuration

This page provides some maintenance configurations, such as the receiver serial port configurations (UART1 and UART2) and rates. Using this window, you can also configure the USB device to use to establish communication with the RTK base chip.

It is also possible to soft power-off and soft reset the base and, if needed, you can do a cold start to the receiver.

Fig. 117 Receiver Configuration window

You can also do a factory reset to the module. With this option all the configurations you had previously set will be deleted.

beRTK® field deploy

Having your beRTK® ready, you should choose a good place to deploy the device. Please have the guidelines below in mind when choosing the right spot:

• Line of sight: It is recommended to choose a place that has line of sight to all the maneuvers that are supposed to be assisted by this base station;

• Open field: an open field spot is always a good option to increase the range of the base station broadcast. Elevated areas usually are the best to cover the areas around;

• Electromagnetic interference: avoid zones that by its nature are rich in electromagnetic interference (e.g. high voltages cabling, proximity of communications towers, etc.).

Warning

Avoid military areas or civil aviation areas, where the radio emitted by the base station can cause trouble or even be considered illegal.