I. PTP Core Definition of the Embedded Module

PTP The embedded module is based on IEEE 1588 ( PTPv2/v2.1 ) Agreement A miniaturized, low-power, high-precision time synchronization core module, integrating a timing source interface, PTP Functions such as protocol processing and clock calibration can be directly embedded into hardware systems like industrial controllers, smart terminals, and IoT devices, providing sub-nanosecond time synchronization for end‑devices and serving as a core component for achieving native high‑precision device synchronization.

II. PTP Core Technical Architecture of Embedded Modules

(1) Hardware Miniaturization Design

• Core Processing Unit : Uses domestically produced low-power components MCU+FPGA Chip, integrated PTP Protocol stack, time synchronization algorithm, compact size (typical dimensions ≤50mm×50mm ), low power consumption ( ≤3W ), tailored to the limited space and power supply requirements of embedded devices.
• Time Source Interface : Supports BeiDou / GPS Dual-mode, single-Beidou timing module access, with simultaneous compatibility for external inputs. NTP/PTP Server signal input, supporting multi-source time signal switching and redundant backup.
• Communication interface : Equipped with UART 、 SPI 、I2C、 Ethernet It provides standard interfaces, enabling interaction with the main control chip of embedded devices and transmitting standard time and synchronization status data; it supports PPS 、 B Code signal input / Output, compatible with external device expansion.
• Clock unit : Built-in miniature temperature-compensated crystal oscillator ( OCXO ), independently maintains timekeeping during signal interruptions, with a timing accuracy of 5 μs/h , meeting the requirements of short-term signal outage scenarios.

(2) PTP Protocol Implementation and Synchronization Process

1. Protocol Parsing and Processing : The module is fully integrated. PTPv2/v2.1 Protocol stack, supports E2E (end-to-end), P2P (Point-to-point) Two modes, which can be used as a standard clock ( OC ) or boundary clock ( BC ) Access PTP The internet.
2. Baseline Time Acquisition : Obtain standard time via the built-in satellite module or an external interface, and generate it after parsing. PTP Synchronization message, via Ethernet The interface is sent to the embedded device’s main control unit.
3. High-Precision Time Synchronization : Employs hardware timestamping to capture at the physical layer PTP Message transmission and reception times are used to compute clock偏差 and transmission delay, and the local clock is corrected via a synchronization algorithm, achieving a synchronization accuracy of ≤10ns。
4. In-Device Time Distribution : Transmit the calibrated standard time via UART/SPI/I2C The interface is synchronized with the embedded device’s operating system and applications, while also supporting the external output of synchronization signals to enable coordinated synchronization across multiple devices.

III. PTP Core Features of the Embedded Module

• Miniaturization and low power consumption : Compact in size and low in power consumption, it is well-suited for space- and power-constrained environments such as embedded devices and smart terminals, and can be directly integrated into the device itself.
• Nanosecond-level synchronization accuracy Hardware timestamp + PTP Protocol optimization, synchronization accuracy ≤10ns , meeting the high-precision synchronization requirements of industrial control, smart devices, and other applications.
• PTP Protocol-native support : Built-in complete PTPv2/v2.1 Protocol stack—no additional protocol translation required; direct integration. PTP Networking, adapted for distributed high-precision synchronization scenarios.
• Strong adaptability to domestic solutions : Domestication of core chips, protocol stacks, and device drivers, with compatibility for domestic embedded operating systems (such as HarmonyOS and the Kylin Embedded Edition), thereby meeting the requirements of the information technology innovation ecosystem.
• Anti-interference, stable and reliable : Industrial-grade design, wide temperature range ( -40℃~85℃ ）、 Resistant to electromagnetic interference, moisture‑proof and dust‑proof, suitable for complex environments such as industrial sites and outdoor equipment.
• Integrated, flexible, and convenient : Standard interface design, providing a hardware development manual, drivers, SDK Development kit, supporting rapid integration into customer devices and shortening the product development cycle.

IV. PTP Mainstream Application Scenarios for Embedded Modules

(1) Industrial Intelligent Equipment

Industrial robots, smart sensors, PLC The controller, through its integrated module, achieves nanosecond‑level synchronization among devices, ensuring coordinated motion on the production line and consistent data‑acquisition timing, thereby enhancing the precision of smart manufacturing.

(II) IoT Terminals

5G IoT gateways and edge computing nodes synchronize the time of terminal devices via modules, ensuring the accuracy of timestamps in IoT data. Accurate , supporting applications such as data analytics and device interoperation.

(3) In-vehicle Electronic Equipment

Autonomous vehicles and connected‑car terminals employ integrated modules to synchronize the timing of vehicle sensors, navigation systems, and communication modules, thereby ensuring reliable decision‑making for autonomous driving. Accurate , Vehicle–road coordination is reliable.

(4) Medical Equipment

High-end medical imaging equipment ( CT 、 MRI ), surgical robots synchronize the timing of internal components via modular integration, ensuring reliable acquisition of imaging data. Accurate , Surgical maneuver coordination and safety.

(5) Military Industry and Scientific Research Equipment

Military‑grade embedded systems and portable scientific instruments feature miniaturized modules, low power consumption, and high reliability, making them well suited for field operations and mobile environments while ensuring precise time synchronization. Accurate Controllable.

V. China–Singapore Innovation DNPTP-E PTP Core Advantages of the Embedded Module

Beijing Zhongxinchuang Technology Co., Ltd. DNPTP-E PTP Embedded module It is a benchmark product in China’s embedded time‑synchronization field, with the following core advantages:

1. Miniature low-power : Size only 40mm×40mm , power consumption ≤2.5W , compatible with small embedded devices and portable terminals, with minimal footprint and power consumption.
2. High-precision synchronization performance : Synchronization accuracy reaches 2.8 ns , built-in miniature temperature-compensated crystal oscillator, timing accuracy 5 μs/h , supports BeiDou / GPS Dual-mode, single-Beidou timing, adaptable to a wide range of application scenarios.
3. Fully protocol-compatible : Full support PTPv2/v2.1 Protocol, compatible E2E/P2P Mode, can be used as OC/BC Clock integration, compatible with distributed systems. PTP Network architecture.
4. Fully compatible with domestic solutions : Domestic MCU+FPGA chip + Single-BDS timing module + A domestically developed protocol stack, compatible with the HarmonyOS and Kirin embedded editions, and certified under the Information Technology Innovation (ITI) program.
5. Industrial-grade environmental durability ： -40℃~85℃ Operates over a wide temperature range, resistant to electromagnetic interference, and protected against moisture and dust; it has passed military‑grade reliability testing and is suitable for harsh environments.
6. Quick integration support : Provides a complete development kit ( SDK , drivers, and manuals), with the technical team providing end-to-end support for integration and debugging, thereby shortening the customer’s time-to-market.