EElink - TK319 Protocol
This page describes the public protocol context for using the EElink TK319 tracker with the Plaspy platform. It focuses on how the device reports position and status to Plaspy using publicly available connection facts and how that communication fits into typical fleet and asset tracking workflows. The content is intended to help administrators and integrators understand the communication relationship without exposing proprietary or sensitive protocol internals.
The EElink TK319 is a 3G network GPS tracker offering GPS and LBS positioning, AGPS assistance, ACC detection, relay control, optional temperature sensing, and remote configuration options. Plaspy uses shared connection settings across supported devices and automatically detects the tracker protocol, while exact protocol behavior can vary with firmware version, hardware revision, and manufacturer implementation. That variability is why it is important to verify device configuration against current manufacturer documentation.
Protocol Overview
The protocol used by the TK319 defines how location, status, alarm, and I/O data are encoded and sent from the tracker to a remote server so that Plaspy can ingest and display meaningful telemetry. This page does not reproduce private packet formats but explains the role of the protocol in the end to end integration between the device and Plaspy.
- Enables the TK319 to report GPS and LBS locations plus supporting telemetry such as ACC state, battery status, and optional temperature readings.
- Carries periodic position updates for real time tracking and supports alarm or event driven reports for security and safety use cases.
- Provides a way for remote configuration to be applied via server commands or SMS instructions when supported by the device firmware.
- Allows the device to identify itself so Plaspy can associate incoming data with the correct asset record.
- Acts as the transportable payload that Plaspy automatically interprets once received at the shared Plaspy endpoint.
How Plaspy Detects the Protocol
Plaspy receives incoming data at a single, shared endpoint and automatically determines which tracker protocol is being used so administrators rarely need to select a protocol manually. Proper device configuration to point to the Plaspy endpoint is the typical requirement for automatic detection and onboarding.
- Plaspy listens on the common server endpoint d.plaspy.com and also accepts data addressed to 54.85.159.138.
- All devices supported by Plaspy use the same port for communication which simplifies device configuration.
- The common port used by Plaspy is 8888 so trackers should be configured to report to that port.
- Plaspy supports automatic protocol detection so users usually do not need to choose a protocol in the Plaspy interface if the tracker reports to the Plaspy endpoint.
- Detection and successful parsing do depend on the device actually sending recognizable, manufacturer consistent reports as implemented in its firmware.
Transport and Connection Context
The TK319 can be configured to use either UDP or TCP depending on device capabilities and installation preferences. For integration with Plaspy, the important configuration targets are the shared hostname and IP and the single port Plaspy uses for all devices.
- Devices may be configured to send to the hostname d.plaspy.com or the IP 54.85.159.138.
- Transport can be UDP or TCP depending on the device configuration and network considerations.
- Plaspy receives tracker reports on port 8888 for all supported devices.
- Choosing UDP or TCP affects reliability characteristics such as retransmission and connection overhead but does not change the logical data reported by the tracker.
- Ensure the vehicle or site network allows outbound traffic to the Plaspy endpoint and to port 8888 for the chosen transport type.
Protocol Compatibility Notes
- Firmware revisions can change the exact fields or message timing a TK319 sends; verify the device firmware version if you observe unexpected behavior.
- Hardware revisions or variant SKUs may implement slightly different reporting features such as additional I O pins or sensor inputs.
- Manufacturer side settings and remote configuration options can alter how frequently the tracker reports or which events trigger immediate uploads.
- Transport selection between UDP and TCP should match what the device supports and what the network environment prefers.
- If using optional sensors such as the temperature input or relay control, confirm how those channels are reported by your device firmware.
- Always validate critical deployment details against EElink documentation and release notes for the specific TK319 unit in use.
Why Protocol Understanding Matters
Understanding how the tracker communicates helps with reliable setup, faster troubleshooting, and predictable long term operation on Plaspy. Even with automatic detection, knowing the communication context reduces ambiguity during onboarding and when diagnosing connectivity or data quality issues.
- Ensures the device is pointed to the correct Plaspy endpoint and port so data flows reliably.
- Helps diagnose transport related issues such as blocked ports, UDP packet loss, or TCP session failures.
- Clarifies the relationship between firmware settings and the telemetry Plaspy receives so expected fields appear in the platform.
- Aids in confirming feature support like ACC detection, relay control, and temperature reporting for operational use cases.
- Reduces onboarding time by aligning device configuration with Plaspy expectations before deployment.
Why Use Plaspy with This Protocol
Using the EElink TK319 with Plaspy provides organizations a straightforward path to real time location, status alerts, and fleet level monitoring while leveraging Plaspy s automatic protocol detection and a single connection endpoint. The TK319 s mix of GPS and LBS positioning, ACC input, relay control, and optional sensors makes it suitable for many vehicle and asset tracking deployments that Plaspy supports.
To learn more about Plaspy and how the platform integrates with devices like the EElink TK319, visit https://www.plaspy.com. For the most current and device specific protocol details, firmware notes, and configuration instructions, verify information on the manufacturer website https://www.eelink.com.cn/ as protocol support and firmware behavior can change over time.
Tracker Communication
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