How To

 

The IPS web portal has been designed to address users belonging to different GNSS communities. This page is a simple guide for the user who wants to learn how to efficiently use the IPS service. For a more detailed explanation, you can download the web portal user manual. Nevertheless as a first important indication, for the best use of the IPS web portal functionalities, we strongly suggest to use the latest version of the Firefox or Chrome browsers. It is also possible to use Microsoft Edge but providing that the the latest updates are installed.

Registration

 

The access to the full potentialities of the IPS service requires a preliminary registration. An email will be sent to the user to confirm its registration and to provide it with the needed credentials (login and password). The IPS team assigns each user to a set of different communities also according to the expressed preferences.

In order to be registered, a user must follow the following few steps:

  • Select from the top banner the Register link;
  • In the Register page edit the fields (Firstname, Lastname, Email, Phone, Additional Information). Note that fields followed by ‘*’ are mandatory. Through the additional information, the user can inform the administrator about which User Communities he desires to belong to; once filled all the fields, click the Sign green button;
  • Then click on the IPS Helpdesk mail address shown at the bottom of the page;
  • User’s email message form will open already filled with the destination address and the guest registration-request information. Send the mail to forward the registration request to the web-portal administrator;
  • The registration can be considered successfully completed only after the reception of the answer from the portal administrator. Such email includes the login information for the first access.

 

Registered User

A registered user can access to different pages of the IPS web-portal, from those common to all users to the personal one that the user is free to configure and customize.

These pages are:

  • Web portal home page
  • User community page
  • Personal page

 

IPS Home Page

This is the home page of the IPS WEB portal. It provides an overview of the service’s objective and architecture and some examples of the products that a registered user can see.

Without logging-in, the user can access only to the following top banner links:

  • general information about the IPS and the publications available for download;
  • the registration form;
  • the "How To" page

 

User Community Page

This page shows a selection of the IPS products which are relevant to a specific user community. A community can be considered as a group of GNSS users which are associated to a specific application or to similar levels of performance in terms of accuracy, integrity, availability, continuity, etc.

During the registration phase, a user is associated to one or more communities, according to the expressed profile and request; the assigned pages are accessible through the second level links of the top banner.

 

Personal Page

The community and personal pages are a collection of widgets. A widget is the IPS basic element to present in a user-friendly way each generated product. There are several possible types of widgets, from maps to images including plots.

The generic widget has the following elements:

  • A top banner with the title of the product and the associated time tag; additionally, there could be a “cross” icon to delete the widget (only in the personal page) and a “bell” icon to configure alarms (only in the personal page and for the products that admit alarms);
  • An information field that reports some useful details about the product shown: description, input data used to generate it, file format and extension, time unit, and product refresh rate;
  • A content field which shows the product itself.

 

Search and Download

All the pages of the IPS web portal update the published products according to the specified refresh rate. At the same time, the system is able to store all the past products for retrieve and download actions.

The IPS portal makes available a page through which the user can download a tar gz compressed archive with the desired products generated in a given time interval. A triplet of strings (category, type and subtype) uniquely identifies each product. It is possible to specify the initial and final epoch of the search and the maximum number of product to be downloaded.

 

Caveats and Limitations

The IPS web portal is a complex system with a lot of processors that run in parallel to provide to a potential very large number of final users with a high number of products (over 160).

The IPS service is at the same time a prototype and therefore there are some limitations in the use of the several available options.

This is the complete list of such limitations:

  • In the search and download page, the maximum number of downloadable products is 100;
  • The maximum number of widgets that the user can create in the personal page is set to 10.
  • In order to avoid a too much complex and heavy web page, also for old PC and tablets that satisfy the minimum configuration requirements, it is suggested to limit the number of new Maps and Charts widgets created in the user personal page. Nevertheless, the system automatically limits the maximum number of displayed Maps to 2.
  • The maximum number of user defined Alarms is limited to 3;
  • When creating a map, the user will experience a web page refresh and a short latency in displaying map information on the widget map
  • In general, when a new widget is created in the personal area, the web page is refreshed and the refresh rate partially depends on the processing power of the client PC. If the page doesn’t contain maps or charts the refresh will be much faster. The residual latency depends on the web page dynamic building capacity at server side. The higher is the web server processing power, the less will be this effect: this is still a prototype and it is expected the performance will increase in the future. This refresh effect also appears in the user community pages when products are updated.