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YulongDa - TK103 Protocol

This page covers the public protocol context for using the YulongDa TK103 tracker with Plaspy. It summarizes how the device communicates with a Plaspy server endpoint and what role the tracker reporting protocol plays in device identification, position reporting, and alarm delivery. The content focuses on public, non sensitive protocol context and does not reproduce manufacturer proprietary details.

Plaspy uses shared connection settings across its supported devices and automatically detects the tracker protocol when devices report to the Plaspy endpoint. Exact protocol behavior can vary by firmware version, hardware revision, and manufacturer implementation, so device behavior in the field may differ between TK103 units and firmware releases.

Protocol Overview​

The tracker communication protocol is the set of messages and conventions the TK103 uses to report location, status, and alarms to a remote server. For integration with Plaspy, the protocol enables the device to identify itself, transmit GPS and status data, and deliver alerts that Plaspy can interpret and present to users.

  • Enables device identification so Plaspy can associate incoming data with a specific TK103 unit.
  • Carries position updates and status fields used for tracking and geolocation features.
  • Transmits alarm and event messages such as vibration alerts, SOS presses, and ACC changes.
  • Supports transport over network connections to a remote endpoint so Plaspy can receive live reports.
  • Allows optional commands and configuration messages to be applied by the server or through manufacturer tooling when supported.

How Plaspy Detects the Protocol​

Plaspy accepts incoming connections at a single shared endpoint and uses automatic detection to recognize the protocol a device is using. This streamlined approach means users typically do not need to pick a protocol inside Plaspy if the tracker is configured to report correctly.

  • Plaspy server endpoint is reachable at d.plaspy.com and at the public server IP 54.85.159.138.
  • Plaspy listens on port 8888 and uses that same port for all supported devices.
  • Devices may be configured to use UDP or TCP to send data to the Plaspy endpoint.
  • When a properly configured tracker reports to the endpoint, Plaspy automatically detects the protocol and begins processing incoming messages.
  • In most cases, correct network and device reporting settings are sufficient for Plaspy to identify and attach the device to an account.

Transport and Connection Context​

Connection context describes how the TK103 establishes a link to Plaspy and which network options are commonly used. The TK103 can operate on cellular networks and may be set to use either UDP or TCP depending on device settings and network conditions.

  • The TK103 may be configured to report to d.plaspy.com or to the server IP 54.85.159.138.
  • Plaspy accepts connections over port 8888 and all devices supported by Plaspy use that same port.
  • Depending on the device and firmware, the TK103 can use either UDP or TCP transport to send reports to the server.
  • Transport selection can affect delivery characteristics such as retransmission behavior and latency, but not the high level protocol semantics Plaspy uses to interpret data.
  • Ensure the tracker has a working cellular data APN and network access so it can reach the Plaspy endpoint.

Protocol Compatibility Notes​

  • Firmware revisions can change how the TK103 formats or schedules reporting messages, so behavior may vary between units.
  • Hardware revisions and optional accessories like external relays or microphones can affect which events are reported and how they appear in messages.
  • Some units may default to UDP while others use TCP; confirm the device transport setting matches the intended configuration.
  • Manufacturer configuration commands or SIM card network restrictions can influence connectivity and reporting frequency.
  • Validate device behavior against official manufacturer documentation for the exact firmware installed on your unit.
  • When integrating many devices, test a small sample to confirm expected behavior before wide deployment.

Why Protocol Understanding Matters​

Understanding the TK103 communication protocol helps ensure a smooth setup with Plaspy, reduces time spent troubleshooting connectivity issues, and improves long term reliability for fleet operations and personal tracking.

  • Helps you verify that the device is reporting to d.plaspy.com or the server IP 54.85.159.138 on port 8888.
  • Guides correct selection of UDP or TCP transport for your network and reliability needs.
  • Makes it easier to interpret status and alarm events coming from the tracker during testing.
  • Supports faster resolution when firmware variations produce unexpected reporting patterns.
  • Assists in planning for optional accessory signals and how they should appear in monitoring data.

Why Use Plaspy with This Protocol​

Using the YulongDa TK103 with Plaspy provides a practical way to collect position, status, and alarm information from vehicles and assets. Plaspy centralizes incoming data from supported trackers, detects protocols automatically, and presents the resulting location and event information through its platform for operational insight.

If you manage vehicles or need reliable remote monitoring, pairing TK103 units with Plaspy can streamline deployment and reduce manual configuration. Learn more about Plaspy at https://www.plaspy.com. For the most current device specific protocol details and firmware behavior verify information with the manufacturer at http://www.yulongdatechnology.com.

Tracker Communication

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