07 Nov 2022
Wirepas Network Tool ("WNT") is a highly scalable tool for monitoring & analyzing Wirepas network operation. It provides visibility of network KPIs, individual node behavior and visualization of the logical topology of a Wirepas network. It supports the import of floor plans to allow for the visualization of the physical network topology. It is possible to use the WNT client to initialize the Wirepas Positioning Engine ("WPE") with the known location of anchor nodes. Additionally, certain network parameters can be remotely managed from the WNT client. WNT also support updating node stack and application firmware.
Figure - WNT full stack overview
WNT works by gathering the diagnostics data from the network (diagnostics packets from the node devices) and relaying that information via a gateway device to a backend server that collects and analyzes the information.
The information can then be visualized in a WNT client application running on the user's personal computer. This document is intended to provide a getting started guide for users of the WNT client application.
The intended audience for this document are technically aware operators or developers of Wirepas Mesh powered networks, who wish to use the WNT client to understand a Wirepas Mesh network's behavior.
There are several technical and know-how pre-requisites for the successful use of the WNT client. These include:
- A provisioned WNT backend. This may be hosted on a cloud service, an on-premise data center or even a local server installation.
- A functioning Wirepas network including a gateway correctly configured to send data to the running instance of the WNT backend.
- The correct server details and credentials to allow the WNT client to connect to the WNT backend. NOTE: These will be provided by Wirepas in the case the backend instance is established by Wirepas on the customer's behalf.
- A computer running Windows 10/11 Professional x64 with enough free disk and RAM to install and execute the application. The PC should be equipped with at least 2GB RAM, 1 GHz< CPU frequency and 20GB of free disk space.
- Some familiarity with Wirepas Mesh operation, radio frequency communication and networking terminology.
- The WNT client must be able to communicate with the WNT backend over TCP/IP using ports 8811, 8812, 8813 and 8886. Ensure that any firewalls between the WNT client machine and backend instance are correctly configured to pass traffic on those ports.
The WNT client is provided as a self-extracting installer binary file.
Copy the self-extracting installer file to the local storage of the PC.
Once copied, launching the installer application will install the application to the PC local disk and make it ready for use. If an older version is already installed, then you will be automatically notified that the previous version will be removed. Follow the instructions on screen to uninstall the old version. When the old version is uninstalled:
Figure - Installation dialog
Clicking through the subsequent dialogues including license agreement and installation location will result in successful installation:
Clicking finish with the "Run Wirepas Network Tool…" checkbox selected will launch the application.
Note: multiple versions of the application can be used by installing them to different locations.
Configuring the client
When the client is run for the first-time after installation, you will be prompted to provide the login server address to complete. Using the information provided to you by the server administrator input the details into the server configuration dialog. The URL will be of the form:
Figure – Authentication address for WNT Client
If you have different services running on different hosts, uncheck the checkbox and remember to change server addresses according to your needs from general settings (see General Settings).
In cases you are connecting to different WNT backends using the same WNT Client: consider adding a shortcut for a WNT Client. See Section “Configuring WNT” .
WNT supports two user roles. An administrative user and an operator user. The administrative user has more capabilities than an operator. This role should be used with caution as important network parameters can be changed with administrative privileges that may result in the network behavior being modified. Many of the functions described in section 10 are only available to administrative users. As a main rule operator user cannot make any changes to the WNT application data, or to the node parameters.
Input the supplied username and password into the following dialog:
Figure - Credentials input dialog
If the credentials are accepted, then you will be logged into the system with the appropriate administrator or operator privileges.
Make sure to navigate to the Settings View -> General Settings (see Section "Settings View Screen" for details) and that the values in the server address fields match those supplied to you by the person or organization responsible for maintaining the WNT backend. The format of the server addresses is as shown in Figure below.
Figure - Server input dialog
Once the server settings are done and saved, the WNT client will reboot and start again with the view shown in Section "Getting Started".
Initial Network Setup
When the WNT client is launched for the first time there is no data displayed in any view, as nodes are not approved yet. In this case the user will see a yellow banner on top of the screen, which will guide the user to approve the nodes (step 3).
Figure - WNT screen when no nodes are approved, see yellow banner text
To begin monitoring a Wirepas the following initialization steps should be performed. These actions must be performed by a user with administrative privileges:
- In the Settings -> Networks view, associate the network ID as set in the network nodes (expressed in decimal format) with a descriptive network name. From WNT v1.4 and onwards a network is automatically created, and this step is not required.
- Optionally, in the Settings -> Building Floor plans view, add a floor plan by importing a bitmap image of the floor plan in one of the following formats: PNG or JPG.
- Approve the nodes in the Settings -> Node Management view by dragging them from the list on to the map.
- Select the networks to visualize gathered data from using the network selector drop down on the Overview Screen.
Clearing all filters
WNT Client supports extensive filtering functionality described in section. A common cause of observing no online nodes is that a filter is enabled. To ensure all nodes are visible ensure that all filters are removed by following the instructions in Section "Filtering Views".
Figure - Filter bars (inside the red circle)
When successfully logged in and all the devices in the network are approved in node management, the following screen (example) is displayed:
Figure - Overview screen
This screen is the central navigation point for the WNT client. It provides:
- The connection status to the WNT backend and network selector
- A number of widgets that can be explored, re-arranged and re-sized providing information on the monitored networks
- A navigation bar to move through different views
Connection Status Icon & Network Selection
At the top left of the main screen you will find a connection status icon that is also a drop-down menu. The color of the icon indicates the connection state of the client to the backend as follows:
Connection established to the WNT backend and correctly functioning
The client is trying to establish a connection to the WNT backend
Connection failed to the WNT backend
It is normal when starting the client to see an amber icon prior to green being displayed whilst the initial data is being loaded from the backend.
The Connection Status also includes a drop-down list of available networks sending data to the WNT backend that the client is connected to. Clicking on the drop down will result in a list of networks being displayed:
Figure - Available network selector dialog
From this list the networks for which data is visualized in the client can be selected. Note that there is an "ALL" option, but be aware that some configuration options are not possible when the "ALL" option is selected. Each of the networks can be named, see Section "Settings View Screen".
The dashboard widgets provide at-a-glance information about the network(s) previously selected from the "Network Selection" drop down list. All widgets include a date/time stamp of the time when the data was calculated. The widgets can be re-arranged, re-sized or maximized.
For all graph-based widgets, hovering the mouse pointer over the graph will display the numerical values associated with that entry.
Currently available dashboard widgets are:
The firmware version widget shows the count of nodes running a particular version of the Wirepas Mesh stack. This information is sent from the nodes only when they boot.
The battery voltage widget displays the distribution of nodes in three bins. In networks operating on mains power the voltage will always be reported as 2.7V or greater.
Low-priority traffic widget displays the number of nodes with a link quality binned as per the graph.
The aggregate transmission load reported by the network.
Latency binning for the low latency message operating mode.
Latency binning for the low energy message operating mode.
Max buffer usage tells how many of the nodes have messages in message buffers. A high max buffer usage usually indicates too heavy load on the network, which can be resolved e.g. by adding a new sink/gateway in the network.
RSSI value describes how well the nodes hear each other. Higher absolute value in dBm means worse quality than lower. E.g -90 dBm is poor, whereas -70 dBm is really good (nodes set their transmission power automatically so too good values are not to be expected, since they would just consume extra power). This diagram is valid for 2.4GHz nodes only.
Installation Quality describes how well the nodes radio link towards the sink will work. Value is calculated by different variables e.g. RSSI and alternative routes.
The value is NOT an indication of goodness of the overall topology. See  for details how this value is calculated.
Using the Navigation bar
To access different functionalities in the WNT client a navigation bar is provided on the left-hand side of the screen. At any time, the icons can be selected, which will change the information presented:
Clicking the overview icon show the overview screen.
A sortable list of nodes and associated information is displayed.
Events info list from node boot events and online status
Nodes are displayed on a world map or building floor plan.
Logical network topology for the selected networks can be visualized.
Allows selected attributes of any number of nodes to be compared via a graph.
All WNT tool configuration topics are managed from the settings view.
Left clicking on any value (number or graph) in a widget where the mouse pointer changes to a hand icon allows a filter to be created as described in Section “Filtering Views”.
You can access help in every page in WNT. Help icon is found on the right hand side of each page.
Clicking the icon will open you a help related to this page.
Nodes View Screen
The nodes view provides a sortable list of nodes and associated information:
Figure - Nodes View list screen
Rows in red indicate that the node is offline, and the backend has not received data in the last 3 diagnostics intervals. Yellow rows mean that node status is uncertain, and the backend has not received data for one diagnostics interval time period. Rows in black are currently online and reporting their data. Bold means that node is approved (moved to map or floorplan from Node management)
Figure - Context menu allows various option for target node(s)
From context menu user can for example set target node to act as an anchor in positioning engine.
Double clicking a row will open the Node Details screen (see Section Node Details Screen”).
The column on which data is sorted can be selected by clicking on a column heading. Click a second time on the column heading inverts the sorting criteria. For example, clicking once on the "battery voltage" column will sort smallest to largest. Clicking again will sort largest to smallest.
Node Details Screen
The node details screen can be activated from Node View list screen (by double clicking a node in the list) but also from a few other screens, including the topology screen. It allows for the details an individual node to be displayed and graphed over time.
Figure - Node details screen
For a full description of the meaning of all attributes, refer to the latest version of the Diagnostics Reference Manual .
Troubleshooting: When getting constant “Loading” text or “No data to show” in all diagrams can indicate error in fetching data from time-series database. This can be a result of e.g. exceeding the memory limit in server or disk quota issues , check WNT backend logs for more info , or contact support.
The information tab displays many diagnostic parameters collected from nodes in the network. It also allows a number of operations to be performed on the selected node:
Display the node in the map view. The selected node will be shown with a white background color.
Display the node in the topology view. The selected node will be shown with a white background color.
Go to the node management screen with this node selected.
Remove the node from the approved node list.
Add this node to the unicast node configuration list. See Section “Settings View Screen” for information on configurable parameters.
Delete the node from the WNT system. (does not delete diagnostics from time series database)
It is possible to copy node information data from information tab using the context menu.
Clicking on an attribute name selects it for graphing. Multiple attributes may be selected. For example, in the figure below, the uplink delay for normal and high priority traffic is being graphed as a time series.
Figure - Node details information tab
The time window for graphing can be changed using the buttons at the top right of the screen:
Figure - Node details zoom level selector
Zooming into the graph is achieved by right-click dragging to highlight the time period of interest. Zoom levels can be reset from the buttons described above.
The boots tab displays the boot count and reasons for boot. The data can be exported into an XML file and sent to Wirepas contact person for inspection if needed.
The neighborhood tab shows the previous hop and next hop neighbors and the sink of the selected node, using the same legends as the main Topology Screen. The selected node for the Node Details can be selected by double clicking the node graphics. Neighbors signal RSSI and radio power is based on next hop information. Therefore, the formula about the values we show on neighboring nodes is complicated. Next hop nodes from the selected node show the values from the source. Previous hop nodes from the selected node show the information from the target. You can see this value also on other interactive views by hovering the node.
Creating a filter
Right clicking on a row (or a number or rows selected with a shift click operation) will display a context sensitive menu with the following options:
- Copy information the clipboard
- Filter out all other nodes
- Filter out nodes
- Remove approval
Selecting the filter options will result in the creation of a new filter in the filter bar.
Events view Screen
Figure - Events view
Events view is the place where you can have a with quick look to see what has been happening in the network or track for specific events. This is very valid tool for detecting unreliable links and unwanted boots / activity in the network. Please note that address clashes and scratchpad transfers are only valid for WNT 4.1 or later.
Here are the different categories you can browse with events view:
- Find if some nodes in your network are booting
- Online status
- Nodes losing connectivity and toggling between online and offline
- Address clashes
- Some nodes are having same network and node address under the same sink in the network and cause clash
- Scratchpad transfers
- To find out that scratchpad transfers are not happening when there should not be any
Map View Screen
If a building floor plan has been uploaded to the backend (see Settings section below) and nodes positioned appropriately, then a world map will be displayed with the building floor plans and nodes rendered in the correct locations. The map is interactive and can be used with mouse or keyboard arrow keys and Page Up/Down.
Figure - Map View
On the map are rendered icons representing the location of buildings with floor plans and networks that have been placed. Positions where nodes are placed, are rendered as heatmap tiles when zoom level is accurate enough. On the most accurate level the node icons appear on the map replacing the heatmap tiles.
A network has been placed at this location on the map. See Section “Settings View Screen”.
A building with floor plan has been placed at this location on the map. See Section “Settings View Screen” ->Building Floor plans.
Icons surrounding the map, whether in world or building mode, allow for different operations to be performed:
Clicking the search icon allows you to find a node by network and node id combination: e.g. 11320266:8 or node name
Selecting the drop down allows the view to be toggled between the world (map) and in building view, where floorplans are displayed.
Any time a node icon is visible on the map view, double-clicking will take you to the Node Details screen (see Section “Nodes View Screen” for further details of node details screen functionality).
When in map view, the network operation is also showed as heat map, showing the green/yellow/red tiles in the map. The more detail heat map can be seen when zooming closely to the area in interest.
Figure - Heat map in map view
Creating a filter
Right click and drag on the map or a floorplan to select the nodes in that geographical area:
Figure - Map filter area selection
Selecting the "Filter Area" option will result in a new filter being created for those nodes. The result of this operation will be displayed as a new filter present in the bar at the top of the screen, for example:
Figure - Map filter coordinates display
Building Floor Plan View
On the map view, clicking on a building icon:
Will result in a floor plan with node locations being displayed. The currently selected building and floor is displayed at the top of the screen. It is possible to select alternative building or floors to be displayed from the drop down menus visible when left clicking on the currently displayed building name:
Figure - Building and floor selector
Selecting the "World" option from the drop down will return to the map view.
To setup buildings and floorplans use the tools in Settings->Building Floor plans screen. Further instructions are available in Section “Settings View Screen”.
Topology View Screen
The topology screen visualizes the logical routing topology of the network at the time the diagnostics data is collected. Firstly, the sinks associated with the selected networks can be chosen. This is done using the checkboxes or "select all" / "deselect all" buttons:
Figure - Topology View, sink chooser
Having selected one or more sinks, there are then two views available. In both cases node role, status and link quality can be seen at a glance:
Low energy node
Low latency node
The nodes and icons are color coded as follows:
- Green: A message has been successfully received from the node during the current diagnostic interval period.
- Yellow: No messages have been received from this node during the preceding one or two diagnostic interval periods.
- Red: No messages have been received from this node for more than two diagnostic interval periods.
- Blue: Planning node. This node is not a real physical node in the network but used just for planning. It only has metadata.
Double-clicking on a node displays the Node Details screen (see Section “Node Details Screen” for further details).
Clicking the "Set auto-update on" button ensures that the view is updated as new diagnostics data is received by the backend from the selected network(s).
Clicking the "Show organic" button will render the logical topology thus:
Figure - Organic topology view
This is useful to understand the current routing connections between nodes and the sink.
Clicking the "Show hierarchy" button results in the network topology being displayed thus:
Figure - Hierarchy topology view
This is useful to quickly visualize the maximum number of hops currently in the network. In this example the network is a maximum of two hops deep.
Comparison View Screen
The comparison view screen allows the selected attributes of any number of nodes to be compared via a graph. First the nodes to be compared are selected by clicking the node number. A checkmark will appear next to selected nodes. Then the diagnostics data to be compared is selected by clicking on the short description. Multiple nodes and values may be selected for comparison. A graph will be plotted with the selected nodes and diagnostic parameters. See Figure below - Two node comparison of channel reliability for details.
It is possible to:
- Pan the graph by dragging while left mouse button is pressed
- Zoom the time range from mouse wheel
- Select a time span for the graph using the buttons at the top right of the screen
- Reset the zoom level
- Zoom into the graph by right clicking and dragging to select the time range to highlight
Hovering the mouse pointer over a:
- Node Diagnostic type will display a short tool tip describing the attribute.
- Data point will display the numerical value and time stamp.
Figure - Three node comparison of channel reliability, with link quality
Settings View Screen
All WNT tool configuration topics are managed from the settings view screen. There are several sub-sections under the main Settings View Screen. The sub-sections are described below.
Various functionality may be accessed from the General Settings screen.
Figure - Server address settings dialog with examples
- Changing the server addresses for various services offered from the backend to the client. See Section “Gettings Started” for further details on initial setup. These details should be provided to you by the person or organization responsible for establishing the WNT backend.
- Viewing node and network values in hex or dec
- Performance optimization to draw less content in map views
- Checking connection status between the client and various server backends.
- Setting the measurement system used to input data on building floorplans.
- Logging out of the current session. NOTE: This will terminate the WNT client and user credentials must be inputted on restart.
- Automatically resetting the widget positions in the overview page
- Resetting node selection (last selected node)
- Clearing Image cache.
This page is for keeping your WNT client, WNT backend and gateways in sync. You should always keep the time difference between components at a maximum of 3 minutes. Otherwise some WNT features will not function as expected.
Query Clocks fetches the date time from your WNT backend and gateways. You can see the timestamp and time difference between the WNT client, WNT backend and gateways.
You should keep your WNT backend and gateways connected to Network Time Protocol (NTP) service.
Unauthorized nodes appear in the list to the left of the screen. Drag and drop these onto the map view to authorize the nodes. Only authorized nodes are displayed in the WNT client screens. Nodes can be placed on the imported floor plan. Select the correct building from the dropdown at the top right of the screen:
At any point you can give your node a name and description to help you keep track of your nodes.RSSI offset text field and Positioning anchor node are related to WPE, which is described in Section “Positioning Engine”.
Note: you can configure your WNT views to e.g. show node name in map view, nodes list or topology. See more details in Configuring WNT UI in Section “Configuring WNT”.
There is also a possibility to add Planning nodes. These nodes are meant for planning and they are not real ones. One can however for example put an anchor installation map beforehand. If the node ids and network ids are put to match the real ones, the planning node will turn into real one in WNT as soon as the real node is connected to network. Planning nodes can be added by clicking the Drag to add node or by dragging directly to the map.
User can also set node name and description in this view.
It is possible to change attributes of individual nodes or the network from this screen. It is only available to administrative users. Configuration changes should be made with caution as setting incorrect values may result in the Wirepas ceasing to function correctly.
Broadcast tab affects the whole network whereas Unicast tab affects selected nodes. The workflow is similar in both tabs:
To change an attribute first highlight the attribute to change in the "Available attributes" selection list:
Select the "Add >>" button which will result in the highlighted attribute being added to the "Selected Attribute" list. A new attribute value can be inputted in the text box:
Figure – Broadcast tab with available commands
Clicking continue will move to the Process tab. No changes to the network or node are made at this point.
Broadcast attributes are those affecting the entire network. It is currently possible to change the following network wide attributes:
- Network address
- Network channel
- Cipher Key
- Authentication Key
- Channel Map (not shown anymore when Wirepas Mesh firmware is 4.0.50 or newer)
Unicast attributes are those affecting selected node(s) in a network. It is currently possible to change the following single node attributes:
Note: Default values are not the node current values.
- Node address
- Node role
- Sink mode
Figure - Node configuration process tab
The page shows overall information about the affected nodes and the attributes to be written to nodes.
Start configuration sends the configuration message to nodes in the network and checks responses from the nodes. Configure does not yet send the configuration message with the activation time, but it is more to make sure that the communication works with the nodes.
After the configuration responses have been received from the wanted nodes, the user can set an activation wait time, which indicates how long the nodes will until they activate the given command(s). The time taken depends on network complexity and approximation can be taken from the time it took to get the configuration done. It can vary from 4 minutes to hours. You can also check which nodes got your configuration command from the table in Figure below.
Figure - Activation ongoing
Start activation will send the activation message to the nodes which will take the command(s) into use after activation time and reboot.
Cancel will cancel the ongoing activation or configuration. The result will depend on the time when the cancel command was executed.
The Process page will update information while Configure/Activation/Cancel/Update Metadata/Reboot requests are being executed. The results are shown on the grid in the middle of the page.
Update Metadata will update the node state in Wirepas Network Tool. It is a good practice to do this after activation.
Finish will close the Process page.
It is mandatory to wait for responses from the nodes before moving to the next step as command propagation in the mesh network cannot be guaranteed. Move only to next step without getting all responses if you know why it has happened and how to fix the situation later.
Node Update (firmware)
From WNT 2.0 onwards WNT Client supports over the air update process (OTAP) to update the Wirepas stack and/or application firmware to the node devices. This means in short that the node device Wirepas stack firmware or just the application firmware can be updated without manually flashing the device.
It is worth noting that this operation is for advanced users only. Wirepas recommends to practice OTAP with small networks that can be easily flashed manually.
Running OTAP on live production networks will cause at least some downtime for the whole network even if everything would go as planned. In the worst case, where incorrectly configured scratchpad is sent to network, the end result might be a need to manually re-flash all the nodes in the network.
Updating nodes should be made with caution and following strictly the guidelines described in following sections.
See complete information about OTAP process and updating firmware in Wirepas network in  and .
This screen displays the currently registered users in the system and their roles. It is also possible to add/delete and change a user's credentials and role:
Figure - User management dialog
Building Floor plans
The building floor plan settings screen allows existing floor plans to be managed and new floor plans to be added:
First a building must be added by clicking the add building button. This will create a new building named "NEW BUILDING". This can then be renamed appropriately. Multiple floors are supported per building. Then the floor plan graphic can be imported by drag and drop or file upload.
Figure - Building Floor plan management dialog
Clicking on the imported floor plan opens the floor plan settings dialog, where the anchor points can be selected by dragging the A, B, C and D markers to the correct location and then inputting the latitude, longitude and height of each point. The expected format is WGS84 coordinates:
Figure - Building Floorplan anchor point selector
It is mandatory that a distance between two known points, 1 and 2 is inputted to allow for positioning calculations if required. Failure to provide this will result in node areas and heat maps being incorrectly displayed in the world map.
Areas tab (WPE only)
It is possible to create areas inside the floor plans, but this information is only used when Wirepas Positioning Engine is in use.
To define an area, select the "add area" button at the top right corner of the screen:
Then type a friendly name in the "AREA NAME" textbox. Left click on the floorplan at the location of the first vertex of the polygon representing the area. Continue adding vertices by left clicking until the desired area is enclosed. Finish the polygon by right-clicking. To delete a vertex, hover the mouse-pointer over it and press the delete button on the keyboard. Make sure to click the green save button to commit the area.
Figure - Area selection in building floorplan
Clicking save will commit the data and then the floorplan will be visible in the building view parts of the WNT UI. Failure to set the coordinates will mean that the building name is displayed in red and is not visible in other parts of the UI.
After defining areas WPE will do a calculation to determine if a moving tag is positioned inside the area. If that is the case it will be visible in the node information page Map Area(s) column, See Figure - Nodes View list screen.
The Network settings screen displays the currently defined networks and allows for new networks to be added and existing ones to be deleted. The association between a network ID and a friendly network name can be defined when the network is defined. Changing the Network id is done from Remote API.
Figure - Network management dialog
This page contains also various network-wide parameters to be set.
- Configure the interval (in seconds) in which the network reports its diagnostics data to the WNT backend. When the diagnostics interval and the application data are applied, the values from the sink are shown in the list above. This list also contains an error, if one happened.
- Application configuration is persistent global data for whole whole network or just sinks. It is always sent by diagnostics interval change. When Set for sinksis selected remember to check the targeted sinks.
- Override if changed outside WNT ensures application data is set again to sinks in case they have been set outside WNT
- Delete all nodes in the backend. Please note that nodes come back if they send data after the deletion.
Position engine page shows the status of Wirepas Positioning Engine if it exists in the backend. It shows the state of the engine, version number and when the last status update was received.
If the status text appears as red, it means that Positioning Engine is not operating. Contact your service support if the positioning engine should be on.
Figure - Position engine status
The Import settings screens allows for the bulk import of node data to the world map via file upload. The data in the file must be correctly formatted XML format.
<node networkid="10000" nodeid="1" latitude="10.0001" longitude="10.0001" altitude="0" approved="true" />
<node networkid="10000" nodeid="2" latitude="10.1002" longitude="10.0001" altitude="0" approved="true" />
<node networkid="10000" name="testname" description="this is the desc" nodeid="99" latitude="44.6387" longitude="117" altitude="101" approved="false" />
Network and node ids are in decimal notation, and latitude and longitude in WGS84 format. At the moment altitude/height data is not used but must be defined for the nodes.
The about settings screen displays copyright information and licensing information relating to the WNT client.
This section is relevant only if you have WPE (positioning engine) running on the backend. This requires separate license.
The WPE services allow you to enhance your services with location data based on measurements provided by a Wirepas Mesh network properly configured for a positioning use case.
Checking current status of your position engine is described in Settings Section “Settings View Screen”.
Adding Anchor nodes to map view
Anchor nodes are shown with the following icon when dragged into the floor plan.
The anchor nodes should be positioned carefully to reflect their real-world position otherwise the WPE calculated position of mobile assets will not be accurate.
Positioning mode in the map view
It is possible to select positioning mode from the map view by selecting this option from the drop down at the top right of the screen:
Figure - Positioning mode selector
This shows a simplified view of the building floorplan that allows the position of anchor nodes and mobile assets to be more easily seen. Anchor nodes are fixed in the real world and have a defined position on the floor plan. Mobile assets can be moved in the physical world, and if the WNT backend is connected to a WPE then the mobile assets will move automatically on the floorplan to reflect their position in the real world. An anchor node is represented on the map as the following icon:
Mobile asset nodes are represented as follows:The color of the icons changes to reflect the status of the node.The Positioning RSSI offset is meant for positioning anchors. This tells positioning engine how much the RSSI value is differing form the other anchors in the network and therefore will result in more accurate positioning. The value should be in a range of -127 to 127 dB. Setting this value requires some radio measurements from the nodes. One example case could be a case where anchor is packed in metallic casing, which reduces the radio range.
Anchor nodes are added and positioned from the Settings -> Node Management screen. Instructions are available in Section “Settings View Screen”.
Figure - Tags Anchors and Others
In Positioning mode user can filter the nodes by the positioning type. This can be helpful if you are looking just for the moving tags or concentrating only on putting anchors in their positions.
Areas in WPE
It is possible to define areas to position engine. This can be done in the Areas tab in Building Floor Plans view. See Section “Settings View Screen”.
In many places in the WNT client it is possible to select a node property to create a filter. The created filter is then applied globally throughout the client until it is cleared.
To create a filter from the:
- Overview screen: left click on any widget's data set.
- Nodes screen: right click on a table entry.
- Map screen: right click and drag an area to select nodes. Also, in the floor plan view, the floor or building can be added to the filter from the buttons on the bottom of the screen.
- Neighborhood screen: Selected nodes neighborhood can be added as a filter.
Once a filter is created, at the top of each screen the active filters will be displayed in a bar, and user can jump between filters by clicking the filter name. Hovering over an active filter name will give the property value on which the filter is set and display a cross mark to remove the filter. For example:
A NodeRole filter has been applied and the parameter is "not a sink".
Create a shortcut
One of the most usable things when running WNT client against multiple backends is to create a shortcut with server details added to directly connect to the wanted server:
In windows create normal shortcut and modify its Target:
"C:\Program Files\Wirepas Network Tool\WirepasNetworkTool.exe" yourbackend.extwirepas.com admin WNTADMINPASSWORDHERE true
Modify WNT Client XML files
It is possible to configure the UI of the WNT by modifying WNT UI xml files. Modifying the XML is not very straightforward, and it is not fully covered in document. XML is human readable document, and you can mix and match the properties visible in each section.
These sections however map directly to our source code and there are changes between code versions. Since this is not a proper API, we share properties.csv document in the installation folder of WNT starting from WNT 3.0 version. If you need some specific property name added to some of the views in prior WNT versions, do not hesitate to contact our FAE in order to request the property name for your WNT version.
General XML file and properties.csv is located in:
General: C:\Program Files\Wirepas Network Tool\ WirepasNetworkTool.exe.config
Instance specific XML file:
Adding property name to XML file
Here is one example where we add Name property to be visible on Canvas highlight on map. We have already added a name for the sink in the network using Node management. The same principle works for adding properties to the lists.
<setting name="NodeCanvasHighlightProperties" serializeAs="Xml">
<ArrayOfString xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
Figure - Node name now visible on highlight
Buffering Location updates on WNT client
In case you have a lot of moving nodes and WNT client gets slow it is possible to reduce the redraw rate of the nodes. Change is done by altering key BatchLocationUpdateIntervalMs, default value 1000.
It is possible to send Data Tx commands directly to node by using a hidden feature on node context menu. In this chapter we will show by an example how to add custom node commands according to your needs in your WNT client. (See  for more information about data Tx message).
Example: Open user.config
Add commands to NodeCommands setting.
<setting name="NodeCommands" serializeAs="Xml">
<ArrayOfString xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<string>Set node address, 255, 240, 1, 040001000D06010024000000030005021E00</string>
<string>Dummy command, 255, 240, 1, 040001000300</string>
In WNT clients node view: Right click on some node to open the context menu. You should see Node command Menu item.
Note that first command (set node address) will change the selected nodes address to 0x24 / 36 with 30s counter (change the value to something else if you already have node with address 0x24 / 36) (note that this command is actually a remote API message inside data Tx message) (see ).
Second command (Dummy) will not make any changes to the node but it will send that data message to node.
This way you can trigger your application specific actions from WNT client without writing any specific client.
It is possible to install WNT backend on customer server (in customer cloud) enabling customer to manage and configure it completely according to your needs.
See  .
Copyright © 2022 Wirepas Oy