Using JudoNet
This page walks through a competition day, from starting the service in the morning to clearing the database afterwards. If you have not read How JudoNet works, read that first.
The web page
Everything except starting the service happens in a browser.
http://localhost:5220 — on the JudoNet PC itself. From another PC on the venue network, replace localhost with the JudoNet PC's name or address, and expect read-only access.
It is http, not https, and the port is 5220. Older documentation gave a different address; if a bookmark does not work, this is why.
The left-hand menu
| Item | What it is |
|---|---|
| JudoNet + version | The version you are running. Quote it when reporting a problem. |
| Live data | The main screen — scoreboards, servers, recorders, alerts. |
| Access Token | Only shown when you have read-only access. Where you paste a token to get full access. |
| Settings | Ports, APIs, broadcast options. |
| Packets Explorer | Search the stored packets. |
| Queue Status | How much work JudoNet has in hand. |
| Language | English or French. Only changeable with full access. |
| Documentation | Opens this documentation in a new tab. |
| Connected to | The name of the PC running the service you are looking at. |
| Time information | The time zone, when the page last refreshed, and whether JudoNet's clock is correct. |
The time information at the bottom is worth a glance every so often. It says one of:
- JudoNet server time is correct. — all well.
- JudoNet server time is ahead / behind by N seconds — the clock has drifted.
- Trusted startup time was not established… — JudoNet could not reach a time server when it started, so timestamps are based on the PC's own clock and may be wrong.
The last one matters most. See time.
The activation controls
The five master switches sit fixed at the top of every page, so they are always reachable. What each one does is described in the master switches.
If more than one JudoNet is running on the network, only one may have Store Online, Display Online, Broadcast UDP to Graphics or Broadcast UDP to FR switched on. JudoNet highlights the conflict in orange on the Live data page but cannot prevent it.
Setting up for a competition
1. Start with a clean database
If the PC was used for a previous competition, stop the service and use Save Previous Competition Data & Clear Database in JudoNet Monitor. See backing up and clearing.
Do this before the competition, never during.
2. Start the service and open the page
In JudoNet Monitor, press START SERVICE, then Open In Browser.
Opening it this way signs you in with full access. If you reach the page any other way you will be read-only and unable to change anything.
3. Select the JudoManager server
On the Live data page, find the JudoManager Servers section and press SELECT on the server running your competition.
Only one server can be selected. Selecting it tells JudoNet which competition is running and — importantly — configures the API settings automatically to match whether that server uses JudoManager or Judobase. You do not choose that by hand.
Until a server is selected, JudoNet shows Please select a server on the Live data page. and cannot send anything online.
4. Enable the scoreboards
New scoreboards appear disabled — their Enable switch is grey. This is deliberate: a scoreboard JudoNet has never seen before might belong to somebody else, and enabling everything automatically would be dangerous during a competition.
Click the Enable switch on each scoreboard you want; it turns green.
Do not confuse the Enable switch with the Connection dot further along the row. The switch is what you set; the dot is what JudoNet reports, and red there means JudoNet cannot reach the scoreboard — not that it is switched off. See enabled and connected are different things.
Check while you are there that each mat has exactly one scoreboard. Two scoreboards claiming the same mat produces a duplicate-mat warning, and the data for that mat cannot be trusted until it is resolved.
5. Check the times
Look down the Live data page for anything saying Sync Time! or TZ mismatch! — against scoreboards, JudoManager servers, FairReplay Recorders or other JudoNets.
Fix them the day before if you possibly can. JudoNet can correct its own clock but nobody else's, and a scoreboard with the wrong time produces contests archived at the wrong moment and video cut from the wrong place.
6. Set the master switches
Turn on what this JudoNet is responsible for. At a normal single-JudoNet event that is all five.
If a second JudoNet is running as a backup, give it Store Locally only.
7. Watch the alerts
A red banner at the top of the page means there are active alerts. Click Show Alerts to jump to them. Clear the list before the competition starts, so anything appearing later is genuinely new.
During the competition
Once it is running, JudoNet needs very little. Things worth looking at:
- The alert banner. Red means something needs attention.
- The scoreboards. Every one you need should be enabled and show a green Connection, with sensible contest data, one per mat.
- Queue Status. The numbers should move and not pile up — see Queue Status.
- The network graph at the bottom of Live data. A rising line means the venue network is struggling.
Leave JudoNet Monitor open on the desktop. If the service stops unexpectedly its taskbar button flashes, and that is the only warning you get.
If a scoreboard disappears
A scoreboard that is switched off or unplugged goes offline in the list and raises an alert. When it comes back it reconnects by itself and the alert turns green.
Packets from the time it was away are lost — JudoNet can only record what it was told.
If you have to restart the JudoNet PC
- Start JudoNet Monitor.
- Press START SERVICE.
- Check the master switches are as you left them.
The database, settings and enabled scoreboards all survive a restart. Only the running of the service does not.
Finishing a competition
- Confirm everything has reached the platform — Queue Status should be quiet, with nothing waiting.
- Check Alerts and Errors for anything unresolved.
- Stop the service in JudoNet Monitor.
- Save Previous Competition Data & Clear Database, ready for next time.
Do not clear the database until you are sure the data has been sent. Once cleared, the only copy is the backup file — and the Video CutterV2 can no longer ask JudoNet for contest timings, so anything not yet cut cannot be cut.
Changing the language
JudoNet is available in English and French, chosen from the Language section at the bottom of the left-hand menu. The change applies immediately — no restart.
The selector only appears when you have full access; read-only users see the current language but cannot change it.