MQTT Protocol Best Practices
Summary of Engineering Practices from Theme Design to QoS Selection.
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Technical Practice of Smart Hotel Terminals and Unmanned Retail: Access Protocols, Hardware Selection, Deployment O&M and Industry Observation.
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Charging Terminal Offline Self-Help: Five Steps to Network and Heartbeat Troubleshooting
Device shows offline but works onsite? Follow these five steps to locate whether it is a network, heartbeat, or platform side issue.
1 min read209 views9 sharesRead more
Interface design between the joint control system and the hotel PMS
How to align the room state, accounting and equipment events, with a list of the minimum available interfaces.
1 min read432 views25 sharesRead more
RS485 Combined Control System Wiring and Address Planning
Slave address allocation, terminal resistance and common ground processing when multiple cabinets are connected in parallel to reduce packet loss in on-site communication.
1 min read135 views21 sharesRead more
Hotel Room Code Charging Terminal: 7 Key Steps from Installation to Go-Live
Take the standard room as an example, combing through the entire process of financial positioning, wiring, powering, binding and acceptance, and attaching common rework points.
1 min read525 views0 sharesRead more
How to calculate the power supply and power consumption budget during the peak hours of the hotel
Put the vending machine, charging terminal and linkage control system into the same power consumption meter to avoid trip and voltage drop.
1 min read283 views23 sharesRead more
After the device data is on the cloud, how should the operation board be designed?
From 37 indicators to 8, this is the pit we have stepped on on 2000 devices.
1 min read395 views18 sharesRead more
Vending Machine MQTT Access: Theme Design and QoS Selection
From the shadow of the device to the issuance of instructions, explain how to divide the topic level, how to select the QoS, and how to handle offline messages.
1 min read98 views14 sharesRead more
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