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OKB Tehnoavtomatika - MPU-01 Protocol

This page describes the public protocol context for using the OKB Tehnoavtomatika MPU-01 tracker with Plaspy. It focuses on how the device communicates with Plaspy in general terms, what connection settings are used, and the practical points to consider when integrating the MPU-01 into a fleet monitoring workflow. The MPU-01 is a compact GPS tracker with a 50 channel high sensitivity receiver and GSM 900 1800 capability suitable for location reporting and SMS communication, and those capabilities are the operational basis for device reporting to a server like Plaspy.

Plaspy uses shared connection settings across supported devices and automatically detects the tracker protocol when the tracker reports to Plaspy endpoints. Exact protocol behavior and message details can vary by firmware version, hardware revision, and manufacturer implementation, so this page stays at a public, implementation neutral level while explaining how the MPU-01 typically communicates with Plaspy and what to check when configuring the device.

Protocol Overview​

The tracker protocol defines how the MPU-01 packages and sends location, status, and input/output data from the device to a remote server. For integration with Plaspy, the protocol's role is to deliver consistent, timestamped location reports and telemetry that Plaspy can interpret for position history, alerts, and live monitoring.

  • Enables the MPU-01 to transmit GPS coordinates and device status to a remote server for tracking and reporting.
  • Carries identifying information from the device so Plaspy can associate incoming reports with the correct asset.
  • Conveys telemetry such as input states, power or battery status, and basic device health indicators in addition to location.
  • Supports operation over common transport options so devices can report in a variety of network environments.
  • Provides the data foundation Plaspy needs to present maps, history, and operational alerts without requiring manual protocol selection.

How Plaspy Detects the Protocol​

Plaspy receives tracker reports on a shared endpoint and port and automatically identifies the tracker protocol used by an incoming device. When the MPU-01 is configured to report to the Plaspy endpoint, the platform will detect and handle the device messages so you normally do not need to select a protocol manually inside Plaspy.

  • Plaspy servers listen on d.plaspy.com and the IP 54.85.159.138 for device reports.
  • The platform uses port 8888 for all supported devices so a single outgoing port is required on the tracker.
  • Plaspy automatically detects the tracker protocol when the device sends data to the shared endpoint and port.
  • If the MPU-01 is sending to the Plaspy endpoint and using a supported transport, the device will typically be identified without manual intervention.
  • Ensure the MPU-01 is configured to report to the Plaspy domain or IP and the correct port so automatic detection can occur.

Transport and Connection Context​

Transport choice affects how the MPU-01 establishes sessions and delivers messages to Plaspy. The tracker may support both UDP and TCP; which one is used depends on the device configuration and network environment. For Plaspy, the shared connection settings simplify configuration because all devices use the same port and endpoint.

  • The MPU-01 may be configured to use either UDP or TCP on port 8888 depending on device support.
  • Devices can point to the Plaspy domain d.plaspy.com or directly to the IP 54.85.159.138 as the reporting endpoint.
  • All devices in Plaspy use the same port so outgoing device settings should use port 8888.
  • Choice between UDP and TCP can affect delivery guarantees and behavior on cellular networks; set the transport that best fits the deployment and device capabilities.
  • Confirm network and APN settings on the MPU-01 so the device can reach the Plaspy endpoint from the target SIM and operator.

Protocol Compatibility Notes​

  • Firmware versions can change message timing, supported fields, and configuration commands; verify the tracker firmware level when checking behavior.
  • Hardware revisions or optional configurations on the MPU-01 may alter available inputs, outputs, or telemetry fields reported to the server.
  • The manufacturer can provide multiple configuration modes for reporting intervals, event triggers, and SMS fallback that affect how often Plaspy receives updates.
  • Transport selection between UDP and TCP is a device configuration choice and may influence compatibility with specific network carriers.
  • Because Plaspy automatically detects protocols at the shared endpoint, correct device addressing to d.plaspy.com or 54.85.159.138 on port 8888 is essential for integration.
  • Always validate device behavior against the manufacturer documentation for the precise firmware build and hardware revision in use.

Why Protocol Understanding Matters​

Knowing the communication protocol and the practical connection details helps you set up the MPU-01 correctly, diagnose issues, and maintain reliable tracking over time. Understanding what the tracker sends and how it reaches Plaspy improves both initial deployment success and ongoing fleet operations.

  • Ensures the MPU-01 is configured to report to the correct Plaspy endpoint and port for automatic detection.
  • Helps to interpret device reported fields and map them to Plaspy telemetry and alerting options.
  • Aids in troubleshooting connectivity problems by narrowing issues to transport, APN, or firmware differences.
  • Supports planning for power management and reporting intervals appropriate to your use case and battery constraints.
  • Makes it easier to coordinate firmware updates or hardware replacements while maintaining consistent reporting to Plaspy.

Why Use Plaspy with This Protocol​

Using Plaspy with the OKB Tehnoavtomatika MPU-01 provides a simple pathway to capture location, status, and basic telemetry from the tracker into a centralized fleet management platform. Because the MPU-01 is compatible with Plaspy and Plaspy listens on a single shared port and endpoint, integrating a device into the platform is typically a matter of correct network and reporting configuration rather than selecting a complex protocol option.

If you want to learn more about Plaspy, visit https://www.plaspy.com. For the most current device specific protocol and firmware behavior, verify details with the manufacturer documentation at http://www.okb-ta.ru/ since protocol support and firmware implementations can change over time.

Tracker Communication

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