Help Center
JGY guide & troubleshooting
This Help Center brings together the common operations and maintenance guides for the JGY construction machinery IoT and rental management system. Whether you are setting up your first T-BOX, managing rental contracts, or troubleshooting an issue, you will find the relevant steps here. It covers six areas — device binding, geofencing, risk-control lockout, reconciliation & settlement, FOTA upgrades, and troubleshooting — to help makers and rental operators run JGY reliably with a low barrier to entry.
Guides
Device Binding
Full flow from powering on the T-BOX to scanning and adding the host and binding the device to the dashboard, including app approval.
Geofencing
Draw polygon/rectangle/circle geofences in the web dashboard, set boundary-crossing alerts, and configure per device or group.
Risk-Control Lockout
Monitor renewal expiry in the finance center, issue global lockout tasks, and execute remote lock/unlock via relay output.
Reconciliation & Settlement
Create reconciliation statements, adjust (increase/reduce), approve, and e-sign; distinguish reconciliation from settlement for staged revenue confirmation.
FOTA Upgrades
Push FOTA firmware upgrades to T-BOX and inclination sensors via the remote platform, with local serial / Bluetooth / remote configuration.
Troubleshooting
Self-check steps for T-BOX offline, CAN-bus errors, inclination data deviation, and e-sign charge failures to locate and recover quickly.
Common Use Cases
- Onboarding new equipment by binding T-BOX in batch and configuring geofences
- Issuing remote lockout for overdue rentals and tracking unlocks
- Periodic reconciliation, settlement, and e-sign contract initiation
- Quick self-check when a T-BOX goes offline or CAN data is abnormal
What to do when something is wrong
Check device online status and alert logs in the web dashboard or app first: if the T-BOX is offline, verify power (9-36V) and SIM data; if CAN data is abnormal, check bus wiring and baud rate (125k/250k/500k); if inclination data deviates, watch fault codes (e.g. 0xBC dual-sensor difference over 3°). Contact support if unresolved.
FAQ
What network does T-BOX binding need?
T-BOX uses 4G with a SIM card — no on-site WiFi needed. Bluetooth and optional WiFi are available for local configuration.
How many devices can one dashboard manage?
On the Youan Cloud IoT PaaS it supports over a million devices with group management — single sites and cross-region rental chains alike.
How is risk-control lockout implemented?
Create a risk-control task in the finance center to issue a global lockout command for expired or overdue devices; the T-BOX executes lock via relay output and unlocks remotely after renewal or approval.
What if a T-BOX goes offline?
Check power (9-36V wide voltage) and SIM data; if both are normal and it remains offline, contact after-sales for remote diagnostics.