A guide for beach operators and municipal account users who use the monitoring console in their daily work. For each screen it explains what you can do and how to operate it.
Item
Description
Audience
Beach operators, municipal account staff, and lifesavers
Scope
Beach Watch System (海辺のみまもりシステム) monitoring console (used in a browser)
Devices
PC, tablet, or mobile phone (all open in a browser)
Terms
The rectangular region drawn over the video is called the "rip current area" (the button is labeled "Draw area"). A single monitored beach location is simply called a "beach", matching the screens
This manual is served by the same server as the console. Open it from Open the operating manual on the sign-in screen, or with the ? button at the top right of each screen.
You can read it on a phone, tablet, or PC. The display automatically matches the device you open it on, and you can switch with the Device buttons above: PC, Tablet, or Phone. The selected device is kept in the page address (e.g. ?dev=pc), so you can share the link as is.
You can print it on paper with the browser's print function. The printout includes the steps for all devices.
While a device is selected, the steps for the other devices are not on the page. If the browser's in-page search (Ctrl+F) does not find a term, switch devices and search again.
2. Signing in and moving between screens
2.1 Signing in
Open the console in a browser and the sign-in screen appears. Enter the username and password you were given.
Sign-in screen. The version and creation date are shown at the bottom. "Open the operating manual" opens this manual.Sign-in screen. The version and creation date are shown at the bottom. "Open the operating manual" opens this manual.Sign-in screen. The version and creation date are shown at the bottom. "Open the operating manual" opens this manual.
Account type
Visible scope
Permissions
Administrator (admin)
All beaches
All operations, detection settings, account management, and sending notifications
Municipal account (…-lg)
Assigned beaches only
Viewing and operating every screen (including area and detection settings). Account management and sending notifications are admin only
After signing in, the buttons at the top right switch between Japanese / English and dark / light display. Switching takes effect without reloading, and the same settings apply the next time you open the console (the sign-in screen has only the EN button). On a phone, these buttons are inside the three-line menu at the top right.
2.2 Moving between screens
You move between five screens: Monitor, Manage, Notification settings, Alert log, and Visitors.
PC
Use the navigation at the top of the screen.
Tablet
Intended for landscape use. Use the navigation at the top of the screen.
In portrait the screen becomes narrower and the navigation moves to tabs at the bottom of the screen.
Phone
The navigation is the tabs at the bottom of the screen. Press a tab to move.
Right side of the top bar. The numbers match the table below. The navigation sits on the left.
No.
Item
Description
1
Beaches
Filters which beaches the whole console shows (accounts with two or more beaches)
2
?
Opens this operating manual
3
EN
Switches Japanese / English
4
◐
Switches dark / light display
5
Bell
Opens the notification center. A number appears when there are unread items
6
Sign out
Signs out of the console
Right side of the top bar. The numbers match the table below. The navigation sits on the left.Right side of the top bar. The numbers match the table below. The navigation sits on the left.
No.
Item
Description
1
Bell
Opens the notification center. A number appears when there are unread items
2
Three-line menu
Holds the operating manual, Japanese / English switch, dark / light switch, and sign-out. The beach selector is here too for accounts with two or more beaches
The three-line menu opened. From here you can open the manual, switch language / theme, and sign out (the beach selector appears for accounts with two or more beaches).Tabs at the bottom of the screen. The current screen has a blue line above its tab.
Use the Beaches selector at the top right (inside the three-line menu on a phone) to filter which beaches the whole console shows. The selection applies to the beach tabs and the beach bar on every screen. It is available to any account assigned two or more beaches — administrators see every beach, local-government accounts see only the beaches they are responsible for. Accounts assigned a single beach see neither the selector nor the beach bar, as there is nothing to choose from.
3. Monitor (/)
Shows the camera feeds of all beaches side by side. Because beach visitors may also see this screen, person-detection boxes and rescue areas are not displayed.
3.1 What you see
Monitor screen. Shows the cameras of your beaches together. Camera images are illustrative.Monitor screen. Shows the cameras of your beaches together. Camera images are illustrative.Monitor screen. Shows the cameras of your beaches together. Camera images are illustrative.
Display
Meaning
Solid red rectangle
Rip current detected by the AI
White rectangle
Manually set rip current area
⚠ Rip current detected
Warning shown while a rip current is present on that camera. For AI detections it stays for the "Alert pause" set in Notification settings (default 300 s = 5 min); a manually set area stays until it is cleared
Swimming status pill
Swimming permitted / Swim with caution / No swimming
"Today" badge
The day's alert count (per camera, cumulative from 0:00). While an alert is active it changes to ALERT
Auto cycle switch (bottom left)
Turns the automatic camera rotation (about every 10 seconds) on and off. On by default; shown only with 3 or more beaches (see 3.2)
Card while a rip current is detected. The red box is the detected region. While it is shown, the camera tabs also turn red, so you notice rip currents on cameras that are not on screen.Card while a rip current is detected. The red box is the detected region. While it is shown, the camera tabs also turn red, so you notice rip currents on cameras that are not on screen.Card while a rip current is detected. The red box is the detected region. While it is shown, the camera tabs also turn red, so you notice rip currents on cameras that are not on screen.
3.2 Operations
A single video card. The numbers match the table below. Camera images are illustrative.
No.
Item
Description
1
Beach name
Shows which beach this is. The municipality name is just below
2
Date and time
When the image was captured
3
Camera tabs
Press cam01, cam02, … to switch to another camera at that beach
4
Today
The day's alert count (per camera, cumulative from 0:00)
A single video card. The numbers match the table below. Camera images are illustrative.A single video card. The numbers match the table below. Camera images are illustrative.
No.
Item
Description
1
Beach name
Shows which beach this is. The municipality name is just below
2
Date and time
When the image was captured
3
Camera tabs
Press cam01, cam02, … to switch to another camera at that beach
4
Today
The day's alert count (per camera, cumulative from 0:00)
Beach bar: select a beach to open its detail screen (next chapter). "All" returns to the wall of all beaches. Monitor always starts on "All" (the wall of every beach). The other screens (Manage, Notifications, Alert log, Visitors) still remember the beach you last chose
Switching cameras: use the tabs at the bottom left of a card (cam01 / cam02 …)
Auto cycle: turn on the "Auto cycle" switch at the bottom left to step each card through its cameras about every 10 seconds (cam01 → cam02 → cam03 → cam01 …). Use it to watch every camera hands-free
The switch appears only when 3 or more beaches are shown (with 1–2 beaches all cameras are already side by side, so there is nothing to cycle)
It is on by default. Turning it off lasts until the screen is reopened
Cameras with an active rip current take priority: with one such camera the cycling stops on it; with several, only those cameras are cycled
With no active rip current, cameras with recent detections are shown first, otherwise the cameras rotate in order
Switching a tab by hand does not stop the cycling — the next step comes about 10 seconds later. To stay on one camera, turn Auto cycle off
Full screen: the button at the right end of the beach bar. Useful for permanent display
Pressing a card: opens that beach's detail (signage) screen
Double-clicking a card (double-tap on a phone or tablet): enlarges the card. Repeat to go back
PC
The F key also toggles full screen
Drag on the video to raise a rip current alert for that region (manual declaration)
Tablet and phone
Declaring a rip current by tracing the video with a finger is not available. This prevents a swipe meant to scroll the page from raising an alert by mistake.
To report a rip current manually, set it from the rip current area on the Manage screen. Setting it there raises the same alert.
4. Beach detail / Signage (/signage/{beach})
The screen shown to beach visitors. It lists every camera of one beach together with the swimming status, conditions, and notices.
The swimming status is a flag icon (blue = Swimming permitted / yellow = Swim with caution / red = No swimming)
Shows air temperature, water temperature, waves, wind, and tide times (air temperature, waves, and wind are fetched automatically from JMA)
Shows beach news and notices as a bulleted list
Shows the Water Safety App (JLA) QR codes (iOS / Android) at the bottom right
Cameras with an active rip current show ⚠ Rip current detected overlaid
Manually set rip current areas (white rectangles) are shown; rescue areas are not
Beach detail (signage) screen. The screen shown to beach visitors. Camera images are illustrative.Beach detail (signage) screen. The screen shown to beach visitors. Camera images are illustrative.Beach detail (signage) screen. The screen shown to beach visitors. Camera images are illustrative.
This screen is read-only. There are no settings to change here.
5. Manage — Responding to alerts (/manage)
The screen for day-to-day operations. Corresponds to the legacy "RipCurrent.Client app monitoring screen".
When an alert is raised, buttons appear directly below the camera image concerned.
Upper half of the Manage screen. A notice and action buttons appear below the alerting camera; the same height is reserved below the others, so tiles never shift. Camera images are illustrative.Upper half of the Manage screen. A notice and action buttons appear below the alerting camera; the same height is reserved below the others, so tiles never shift. Camera images are illustrative.Upper half of the Manage screen. A notice and action buttons appear below the alerting camera; the same height is reserved below the others, so tiles never shift. Camera images are illustrative.
Button
What it does
Start response
Records the time you acknowledged the situation and started responding
False alarm
Closes the alert as a false alarm. The rip current area (white rectangle) on that camera is also removed
Clear alert
Closes the alert once the response is over. The rip current area (white rectangle) on that camera is also removed
Only current alerts (raised within the last 10 minutes) are shown. Older ones disappear from this screen, but the records remain in the Alert log
The same space is reserved even while there is no alert, so the cameras do not shift when alerts appear or clear
6. Manage — Setting a rip current area manually
You can mark a region you judge dangerous yourself (one per camera). Corresponds to section 4.1 of the legacy manual.
6.1 Setting an area
PC
In "Rip current area (manual)", press Draw area in the row for the camera
Drag on the camera image to draw a white rectangle
Press Apply. Notifications start
Rip current area panel. The numbers match the table below.
No.
Item
Description
1
Draw area
Enters drawing mode. Press it, then trace the image
2
Apply
Starts notifying with the drawn region. Nothing is sent until you press it
3
Clear
Discards the draft, or clears an applied area
Dragging draws the white rectangle. The tag at the bottom right shows that drawing mode is on. Camera images are illustrative.
Shift+left-drag also draws, without pressing Draw area.
Tablet and phone
In "Rip current area (manual)", press Draw area in the row for the camera
Trace the camera image with a finger to draw the white rectangle
Press Apply. Notifications start
Press Stop drawing so you can scroll over the video with a finger again
Rip current area panel. The numbers match the table below.Rip current area panel. The numbers match the table below.
No.
Item
Description
1
Draw area
Enters drawing mode. Press it, then trace the image
2
Apply
Starts notifying with the drawn region. Nothing is sent until you press it
3
Clear
Discards the draft, or clears an applied area
Tracing with a finger draws the white rectangle. Camera images are illustrative.Tracing with a finger draws the white rectangle. Camera images are illustrative.
No Shift key is needed. The page does not scroll while you are drawing.
While you draw, the status is "Draft (not applied)". Nothing is notified until you press "Apply".While you draw, the status is "Draft (not applied)". Nothing is notified until you press "Apply".While you draw, the status is "Draft (not applied)". Nothing is notified until you press "Apply".
Nothing is notified until you press Apply. To redraw, simply trace again.
The camera in drawing mode shows an Editing rip current area tag at the bottom right of the image.
6.2 Clearing it
Press Clear. A confirmation dialog appears.
On a PC you can also right-click inside the white rectangle to clear it.
6.3 What starts when you apply it
The warning on the signage and monitor (⚠ Rip current detected)
Notifications to LINE and lifesaver smartwatches (with the detection image — the same one shown in the Alert log)
Detection of people entering the white rectangle
The alert in the response row of the Manage screen
Saving the camera image of that moment (with the white rectangle) — shown under "Detection images" in the Alert log
Do not forget to clear it. An applied rip current area keeps notifying until you press Clear, False alarm, or Clear alert.
7. Manage — Setting the rescue area
Define the region to watch (a polygon), and lifesavers are notified when a person is detected inside it. Corresponds to section 4.3 of the legacy manual.
7.1 Setting an area
PC
In "Rescue area", press Edit area in the row for the camera
Click on the camera image to place vertices and draw the boundary
Click the first point or press Done. Three or more points complete the area
Rescue area panel. The numbers match the table below.
No.
Item
Description
1
Edit area
Place vertices to draw the boundary. Pressing it again turns it into "Done"
2
Clear
Clears the applied area
3
Show
Toggles whether saved areas are overlaid on the camera images on this screen
Each click places a vertex. The first point is shown as a larger circle. Camera images are illustrative.
Right-click a vertex to delete it, or press Undo point to remove the last one. Vertices can be dragged.
Press Esc to leave editing.
Tablet and phone
In "Rescue area", press Edit area in the row for the camera
Tap the camera image point by point to place vertices and draw the boundary
Tap the first point or press Done. Three or more points complete the area
Rescue area panel. The numbers match the table below.Rescue area panel. The numbers match the table below.
No.
Item
Description
1
Edit area
Place vertices to draw the boundary. Pressing it again turns it into "Done"
2
Clear
Clears the applied area
3
Show
Toggles whether saved areas are overlaid on the camera images on this screen
Each tap places a vertex. The first point is shown as a larger circle. Camera images are illustrative.Each tap places a vertex. The first point is shown as a larger circle. Camera images are illustrative.
Long-press a vertex (about 0.5 s) to delete it, or press Undo point to remove the last one. Vertices can be moved with a finger.
7.2 Clearing it
Press Clear. A confirmation dialog appears.
7.3 What starts when you apply it
"Rescue area set" enters the notification center, together with the camera image of that moment
When a person is detected inside the area, lifesaver smartwatches and the notification center are notified
On this screen, people inside the watched area are shown with a red box. Clearing the area removes the boxes immediately
The switch at the top right of the card toggles the rescue area overlay on the video
A rescue area only defines the region to watch. Unlike a rip current area, it has no response buttons (Start response / False alarm / Clear alert). It only announces the setting and the entries.
8. Manage — Swimming status, water temperature, and notices
Choose the swimming status from the three flag buttons; it takes effect immediately (no apply button needed)
For the water temperature, enter a value and press Publish to signage
Tide times are fetched automatically from the JMA tide tables; no input is needed
The swimming status is a row of flag buttons. Pressing one takes effect immediately.The swimming status is a row of flag buttons. Pressing one takes effect immediately.The swimming status is a row of flag buttons. Pressing one takes effect immediately.Lower half of the Manage screen. From the left: swimming status & water temperature, notices, rip current area, and rescue area.On a tablet the four panels sit side by side (3 columns in landscape, 2 in portrait).On a phone the four panels stack vertically.
8.1 Beach news & notices
A bulleted list where one line is one item. Edit the lines, add more with + Add item, and delete with ×. Publish to signage pushes them to the signage, the monitor, and the smartphone app for beach visitors.
Each line of the notices is one item. Press "Publish to signage" to publish.Each line of the notices is one item. Press "Publish to signage" to publish.Each line of the notices is one item. Press "Publish to signage" to publish.
Pressing Enter while typing adds a line for the next item. Remove extra lines with ×.
9. Notification settings (/settings)
Sets the conditions for raising alerts, per detection type. Rip current detection covers rip currents, Person detection covers people, and Rescue area detection covers entry into the rescue areas of chapter 7.
Item
Meaning
Alert interval
Width of the window, in seconds, over which detections are counted
Detection count
An alert is raised when this many detections occur
Alert pause
Time, in seconds, during which no further alert is raised after one
Notification settings card. The numbers match the table below.
No.
Item
Description
1
Alert interval
Width of the window, in seconds, over which detections are counted
2
Detection count
An alert is raised when this many detections occur
3
Alert pause
Time, in seconds, during which no further alert is raised after one
4
What these values do
A diagram that redraws on the spot as you change the values
Notification settings card. The numbers match the table below.Notification settings card. The numbers match the table below.
No.
Item
Description
1
Alert interval
Width of the window, in seconds, over which detections are counted
2
Detection count
An alert is raised when this many detections occur
3
Alert pause
Time, in seconds, during which no further alert is raised after one
4
What these values do
A diagram that redraws on the spot as you change the values
The AI repeats its check about once per second. For example, with "Alert interval 60 s / Detection count 5 / Alert pause 300 s" the behavior is as follows.
5 detections within 60 seconds raise an alert
For the next 300 seconds no alert is raised, however many detections occur
After the 300 seconds, counting restarts from zero
The "What these values do" diagram on each card redraws on the spot as you change the values, so you can check the effect before saving. To err on the safe side, lower the detection count.
Saved values reach the inference server in about 60 seconds.
10. Alert log (/logs)
The screen for reviewing past alerts. Corresponds to the legacy "alert history screen".
Hourly chart: shows the selected day's alert counts per camera. When the selected day is today it is marked (in progress). Hours when AI detection was not running (outside operating hours, node stopped, or in the future) are shown as no data — no point is drawn — to distinguish them from "0 alerts"
Type and camera filters: switch with the buttons. Counts are for the selected day
Detection image gallery: lists the selected day's detection images. In the enlarged view, use ← → to step through and the Space key to play continuously
History list: shows the ID, type, camera, detection image, raised time, and action for the selected day
Rip current detections distinguish (AI) = detected automatically from (manual) = declared or set by an operator
The "Action" column shows the operation pressed on the Manage screen (Start response / False alarm / Clear alert). Unhandled alerts show "—"
Shows the selected day's alert counts by hour and camera. Hours when AI detection was not running are left blank (no data).Shows the selected day's alert counts by hour and camera. Hours when AI detection was not running are left blank (no data).Shows the selected day's alert counts by hour and camera. Hours when AI detection was not running are left blank (no data).History list. Rip current detections are shown as (AI) or (manual).History list. If the table overflows, swipe sideways inside it.History list. If the table overflows, swipe sideways inside it.
PC
Hover over the chart to see the counts for that hour in a tooltip.
Tablet and phone
Tap the chart to see the counts for that hour in a tooltip. Slide a finger left or right to move between hours. If the table overflows, swipe sideways inside it.
11. Visitors (/people)
The screen for viewing an estimate of how many people were on the beach.
Choose the range with the Period (7 days, etc.) and the Date at the top. The top row shows four statistics: the period total, the selected day total, the peak hour, and the number of saved images
Shows cumulative detections per camera, by day and by hour. For the figures, open "Table (by day and camera)"
No line is drawn for future hours. "0 people" and "no data" are shown differently
Today's date and the current hour are marked (in progress) — their numbers are not final yet
Select a point on the hourly chart to filter the saved images to that hour
Saved images are shown 60 at a time; press Show more for more. They can be filtered by hour and camera, and played continuously from the enlarged view
Images are saved every minute for every camera and deleted automatically after 7 days
Shows cumulative detections by day and by hour.Shows cumulative detections by day and by hour.Shows cumulative detections by day and by hour.
12. Notification center (the bell on each screen)
Rip current alerts, area entries, rescue area settings (with an image), and messages from administrators appear in the list
The unread count appears on the bell badge. Opening a notification marks it as read
Administrators can use "Send a notification" to pick beaches and send a message to municipal accounts
Press the bell and it slides in from the right. Unread items have a colored line on the left.Press the bell to open it. Unread items have a colored line on the left.Press the bell to open it. Unread items have a colored line on the left.
13. Using a phone or tablet
The layout adapts to the screen size. Every operation can be completed by touch alone (no Shift key or right-click needed).
On a PC
On a phone or tablet
Shift+left-drag (rip current area)
Press Draw area, then trace with a finger
Right-click to delete a vertex (rescue area)
Long-press the vertex, or Undo point
Right-click to clear the rip current area
Press Clear
Hover over a chart to read the values
Tap the chart
Double-click to enlarge a video
Double-tap to enlarge
F key for full screen
The ⛶ Full screen button at the right end of the beach bar
Navigation at the top
Tabs at the bottom of the screen
The page does not scroll while you draw. While "Draw area" or Edit area is active, finger movement draws the shape.
To scroll the page, press Stop drawing or Done.
Landscape is recommended. Camera images are wide (16:9), so turning a phone sideways makes areas easier to draw.
14. Troubleshooting
Symptom
What to check
The video shows "NO SIGNAL"
The camera or the network is down. Wait a while and reload
The screen stops updating / the connection dropped
The connection to the server was lost. It reconnects automatically (every 5 to at most 60 seconds)
Too many alerts
In Notification settings, increase the "Detection count" or lengthen the "Alert pause"
No alerts are raised
Use the diagram in Notification settings to check that the detection count can be reached within the alert interval
No buttons in the response row
Only alerts raised within the last 10 minutes are shown. Check older ones in the Alert log
Tracing with a finger draws nothing
Check that Draw area is pressed. You cannot draw on a camera that already has an applied area (press Clear first)
Cannot scroll over the video
Drawing mode is still on. Press Stop drawing or Done
The screen shows outdated content
Reload the browser (the cache can persist just after a release)
15. Appendix: Mapping from the legacy system
Legacy system
New console
RipCurrent.Client app, monitoring screen
Manage (/manage)
RipCurrent.Client app, alert history screen
Alert log (/logs)
RipCurrent.ControlAlarm app, alarm settings
Notification settings (/settings)
RipCurrent.Server app (signage)
Beach detail / Signage (/signage/{beach})
Buttons below the camera view
Buttons directly below the camera images on the Manage screen (chapter 5)
Alert cancel
Clear alert
Start rescue / End rescue
Not carried over to the current console (consolidated into Start response, False alarm, and Clear alert)
16. Appendix: Revision history
Version: v1.0.2 (created 2026-08-26).
Releases from v0.16.0 to v0.22.0 carried a "-beta" suffix (trial release); it was dropped at v1.0.0.
This version number applies to this web console only. The lifesaver smartwatch
and the Water Safety App are separate products and are not affected by these updates.
The version of the running console is shown at the bottom of the sign-in screen
and at /api/health.
If the console and this manual show different versions, reload the browser.
Version
Main changes
v1.0.1
Security hardening: response headers, temporary lockout after repeated failed logins, session lifetime shortened from 12 to 8 hours
v1.0.0
Dropped the "-beta" suffix (the BETA badge disappears from the screen)
v0.22.0-beta
Monitor now always opens on "All" (the wall of every beach) instead of jumping to the beach chosen on another screen
v0.21.5-beta
Apogama now uses the northern Okinawa forecast area (where Onna Village belongs) instead of the central-southern one; temperature station moved from Naha to Nago
v0.21.4-beta
Removed the swimming-status label overlaid on video in 1–2 beach view (duplicated by the info band); "No swimming" can no longer be selected for the two Okinawa sites
v0.21.3-beta
For the two Okinawa sites only "No swimming" is hidden (permitted / caution are shown); the flag buttons on Manage are always available
v0.21.2-beta
Monitor info band: swimming status no longer shown for the two Okinawa sites; wind and wave text is no longer cut off
v0.21.1-beta
Added the calculation note (i marker) to the alert-log chart; the "i" icon is slightly larger again
v0.21.0-beta
The beach selector is now available to any account with two or more beaches (no longer admin-only)
v0.20.2-beta
The 20-minute chart tooltip now shows the time only; the "i" icon is slightly larger
v0.20.1-beta
The "i" description marker is now a line icon
v0.20.0-beta
Lab feedback (2026-08-15): beach order, auto-switch moved into the beach bar, descriptions behind i marks, "Detection"→"Notifications" and "People"→"Visitors", larger and stronger text and axis labels, save button right-aligned, sticky beach bar, total line on charts, visitor figures changed from cumulative to a 20-minute average [people/20min], swimming status hidden for the two Okinawa sites
v0.19.5-beta
Person / rescue-area detection defaults set to 60 s, 3 times, 60 s; "Rescue line detection" renamed to "Rescue area detection"
v0.19.4-beta
Auto cycle on the Monitor screen is now on by default (turning it off lasts until the screen is reopened)
v0.19.3-beta
Video-card badge changed to "Today N alerts" (from /5 min; per camera, cumulative from 0:00)
v0.19.2-beta
Y-axis units ([alerts] / [people]) on charts; "(in progress)" also on today / the current hour in hourly charts
v0.19.1-beta
Manual body text now uses the full width; hours running with zero detections show as "0" (no data = AI stopped only); Auto cycle switch added to 3.1
v0.19.0-beta
Alert-log "no data" hours (distinguished from 0 while AI is stopped), "(in progress)" on today in People counts, expanded Auto cycle notes
v0.18.2-beta
During an alert, person detection is pinned to the rip-current position at alarm time (same as the red frame on screen)
v0.18.1-beta
Manual fixes (alert-response figure, body-text wrapping, -beta labeling); alert-log stat renamed to "Peak hour (selected day)"
v0.18.0-beta
Live (MJPEG) camera view; automatic still-image fallback for unreachable cameras
v0.17.0-beta
Access records (IP, screen, time spent) stored; larger bottom tabs on phones
v0.16.0-beta
Beta labeling; phone three-line menu, vertical scrolling and footer; beach-detail fullscreen button and maximized cameras; home-screen icon
