NET20User Manual
version：version 1.0
date：20131212-V1.0
Foreword
NET20 is a high performance CORS reference station receivers, which uses LINUXsystem and supports secondary development.NET20 can be used in different areas.if you want to use NET20,please read the instructions!
CONTENT
part one NET20Introduction 5
1.1 IN THE FRONT OF INSTRUMENT 5
1.2The back of the instrument 6
1.3Start the receiver 7
part two :Webapplication 7
2.1 The system statue 8
2.1.1The system information 9
2.1.2 GNSS STATUS 9
2.1.3 The satellite information 9
2.1.4 Transmit Data 10
2.1.5 Data Record 11
2.2 Configuration 13
2.2.1 Reference station 13
2.2.2 Network Settings 14
2.2.3 Transmit dataSettings 17
2.2.4Record Data Settings 18
2.2.5 Port configuration 18
2.2.6 Alert settings 28
2.2.7 Instruments Registration 28
2.3 Data Download 29
2.4 System Management 29
2.4.1 update 29
2.4.2 log 31
2.4.3 security 32
2.5 help 33
PART THREE:QUICK SETTING 34
part one NET20Introduction
1.1 IN THE FRONT OF INSTRUMENT
Receiver includes seven keys on the front panel、four LEDs and an OLED display.
chart1-1
After opening the NET20, the main screen displays the current time, the satellite position information. English is the default language,if you want to look for the IP please press left or right key. The key function as follow:
table1-1key / led
Key/led / funtionF1 / Save the current settings and back to the last menu
F2 / Return to the main interface from any menu
/ To move the cursor up and down,to modify the parameters
/ To move the cursor left and right
Power key / Turn on or off the device and OK key, go into submenuconfirm your selection by pressing
BLuebooth led / The led will turn into blue when the blueboothis linking
RTK sending led / If the Rtk data is sending ,the led will be light in 1s every time
static data recode led / If the static data is recoding ,the led will be light in 1s every time.
Power led / After trun on the NET20.The led is alwayslight.
1.2The back of the instrument
chart1-2
NET20 offers a variety of communication port.various communication port as described in Table 1-2.
table1-2port function
port / Function1：TNC port/GPS external antenna / Connect an external GPS antenna .
2：DB9 serial port / System terminal debugging
3：7pins Lemo port/COM1 / COM1 data output
4：2 pins charge port / Standard adapter
5：USB port / Connect pc to copy data
6：SIM card slot / Connect GPRS/CDMA
7：RJ45 Ethernet port / Connect Internet
1.3Start the receiver
Long press the red power key of the receiver panel to start theNET20 receiver, after the receiver enters initialization state. The main interface of OLED LCD screen as shown in figure 1-3.
chart1-3
Press left /right key to check the current DHCP model or what is the IP address in the static state.
chart1-4
part two :Webapplication
If you want to login the NET20.please entertheip in the browser. You can find the ip address on the oledscreen.Enter your username and password in the dialog box, the default user name and password is admin: password.
chart2-1
After authentication,you can login the homepage.It displays the reference station name, device information, software version, Ethernet parameter data and power.
chart2-2
Note: suggest to use googlebrower or IE8 and above
2.1 The system statue
2.1.1The system information
It displays the reference station name, device information, software version, Ethernet parameter data and power.
chart2-3
2.1.2 GNSS STATUS
It displays the real-time coordinate and the coordinate of base station and antenna parameter.
chart2-4
2.1.3 The satellite information
It displays the number of the used and the tracked satellites.
chart2-5
2.1.4 Transmit Data
Click “Start server”, the current interface can auto go to the interface of data settings.you must set the servername,serverip and port,differential data type.
Note：
a:as shown chart 2-6.input the password casual.But not to be empty.
b:The device support data connect automatically turn on and turn off.
c:Before setting the parameter,please back to the page of Reference station.you must makesure the the base station coordinate is Correct.If you want to use the knowedcoordinate,please input it.
chart2-6
Click “Submit” and back to the interface in the data transmitting state. At this time the status show “transmitting”, data size is increasing and the “start server” icon turn gray.TheRTK sending led light on the oled screen.
chart2-7
2.1.5 Data Record
As you know ,Data recode will save the static data.You must set some parameter like the file name、cut angle、interval.
It offers four naming rulesas follows:
table2-1filename rule
File name / annotationYYYYMMDDhhmmss.dat / Date and when minutes and seconds
YYYYMMDDhhmm.dat / Date and when minutes
DOYhhmm.dat / Annual day and when minutes
custom / Custom
Record length:After setting the record length,the file will be recorded depending on the setting.when you trun on the autorecord.the NET20 will record in every record length.
Convert to RINEX：convert the static data into RINEX and save by this datatype.
FTP Push：set the FTP server parameters，the NET20 will send the data to FTP server automatically.
chart2-8
chart2-9
After setting the parameters,click“submit”,, the interface skip to the data recording interface.click“start server”.you can start record data, while the “start record” button turn gray.
The led will trun to light on the oled screen.
chart2-10
2.2 Configuration
This section contains all the parameters of NET20, then will be introduced in the following sections.
2.2.1 Reference station
This section containsreference stationname,stationantenna parameters,referencenumber and time zone information, HTTP remotewebaccess port, set thereference stationcoordinates.
AntennaParameters:If you are usingan antennatypeprovided bytheweb, select the corresponding model, and then enter theactual referencestationantenna height.
Reference stationcoordinates:If you do notneeda knowncoordinate to start reference station, then click on the "current coordinates"as areference stationcoordinates,if you needa known coordinate to start reference station, enter the coordinates ofa known pointin accordance withthe appropriate format.
chart2-11
The web access port is 80.After settingmappingin the routerdevice,then you can access the NET20 byInternet.the page as follow:
chart2-12
2.2.2 Network Settings
Network settings mainly fordata linkwith NET20.
DHCP：If the model DHCP is enable,the NET20 receiver will auto get IP address, but the IP address may be changed.
chart2-13
WIFI hotspot：After click “submit”,you can usewifidirver to scan the NET20.The wifi hotspot is named by driver serial(for example NET203121001w). you do not need to input password.Acess NET20 by IP address 192.168.4.1.
chart2-14
chart2-15
Wifi client：When selectingWIFIclient,input theSSIDwhich can be searched, enterthepasswordof the WIFIhotspot, and then submit,you can seetheipin thesystem terminalorpanel interface(where different versions ofthe displaywill be different) .
chart2-16
The model 3G：You need to input the 3G SIM card to the card slot, open the 3G model and write the respondingAPN , then click “Submit” as shown in chart 2-17.
chart2-17
FTP server setting：If you choose the ftp serve enable. The NET20 will became the ftp server.other driver can access the NET20 by ftp client like filezilla. Now you can download the data .It offer Anonymous access or you can use user and password which you set.
chart2-18
When you access the NET20 by Ftp.The page of Ftp client will be shown as follow:
chart2-19
2.2.3 Transmit dataSettings
In the interface you can set the Caster name and IP address which one you want to receive data.
chart2-20
2.2.4Record Data Settings
In this interface we can set some parameters about the static data.
chart2-21
2.2.5 Port configuration
Port setting includes Bluetooth port、COM1 port and Socket settings.They can support the function as follow:
CMD (input/output):InstructionNET20
NMEA(output):SpecifiedoutputNMEA sentences
RTK(INPUT):Differential Input
RTK(OUTPUT):Differential output
RAW( output):Raw data output
By the way you can use com1 to connect the oem.
2.2.5.1Bluetooth
After opening the Bluetooth and choosing the output/input type .click “submit”,you can usbbluetoothdirver to scan the NET20.the Bluetooth of NET20 is named by driver serial(for example NET203121001w).
chart2-22
Now we use the PDA to access the NET20 by bluetooth.The page of PDAwill be shown as follow:
chart2-23
chart2-24
chart2-25
chart2-26
2.2.5.2 COM1
note：
a:Whendata transmission from com1, use theseven-wire connectionstandardto connect seven-pin in the back panel;
b:Whenthe baud rate of com1is consistent withthe baud of receiving device;
Chart2-27and chart2-28arethe process ofthe COM1 portoutputRTCM3 as follow:
chart2-27
chart2-28
Chart2-29and chart2-30arethe process ofdirectly connectingto serial COM1 portas follow:
chart2-29
chart2-30
2.2.5.3 SOCKET
Chart2-31and chart2-32arethe process ofoutputing NMEA with socketas follow:
chart2-31
chart2-32
Chart2-33and chart2-34arethe process ofoutputing RAW with socketas follow:
chart2-33
chart2-34
2.2.6 Alert settings
SetareminderwhenAbnormalphenomenon fromsystem orprogram, NET20 usee-mailorSMSto notifythe administratortoperform maintenancemanagerin time;
chart2-35
2.2.7 Instruments Registration
Enter the registration codeand click Submittocomplete whenNET20expired;
chart2-36
2.3 Data Download
Download datastored in theNET20insideby network;
And download data by using a USB cable connect to NET20;
chart2-37
2.4 System Management
2.4.1 update
Select theupgrade filestorage pathand open;
chart2-38
Clickupgrade after importing the file;
chart2-39
NET20will automatically restartto upgrade afterimporting;
chart2-40
2.4.2 log
It records the kernel ,os and app log.
chart2-41
chart2-42
chart2-43
2.4.3 security
Set upsecure loginprivileges, admin ismanaged accounts, and Gusetis a guestaccount, guest accountcan only viewinformation;
chart2-44
2.5 help
Later………
PART THREE:QUICK SETTING
You can quick set the receiver by the panel key. It includes six parts：start record, transmit the data, network set, antenna set, other set, device information.
Record the data: In the main interface, lightly press F2 key shown in figure 3-1.
Figure 3-1
Lightly press power key to confirm, go into “Start Record” quick set as shown in figure 3-2.
Figure 3-2
We can directly start and stop to record the static data.
Transmit data:
Figure 3-2
Figure 3-3
You can quickly set difference type, start and stop transmit data.
Network settings:
Figure 3-4
Other settings:
Figure 3-5
Device information：
Figure 3-6
Antenna settings:
Figure 3-7