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Method and system for reliable communication between dual processors of TBox

A dual-processor, processor technology, applied in the field of communication, can solve the problem that the MPU cannot process synchronously

Active Publication Date: 2020-04-10
WUHAN KOTEI INFORMATICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problems existing in the prior art, the present invention provides a method and system for reliable communication between TBox dual processors, and solves the problem in the prior art that MPU abnormality cannot be synchronized to the MCU for corresponding processing

Method used

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  • Method and system for reliable communication between dual processors of TBox
  • Method and system for reliable communication between dual processors of TBox

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Embodiment 1

[0047] Embodiment 1 provided by the present invention is an embodiment of a method for reliable communication between dual processors of TBox provided by the present invention, such as figure 2 Shown is an interactive schematic diagram of reliable communication between dual processors of TBox provided by the present invention. figure 2 It can be seen that this embodiment includes:

[0048] Step 1. Other processes of the MPU of the TBox periodically send the running status to the monitoring process, and the monitoring process establishes a data frame representing the running status of each other process.

[0049] After the system is started, the monitoring process establishes a data frame representing the running status of each other process, such as image 3 Shown is a schematic diagram of an embodiment of the structure of a data frame representing the running status of each process provided by the present invention. image 3 It can be seen that the data frame is a data data contai...

Embodiment 2

[0072] Embodiment 2 provided by the present invention is an embodiment of a TBox system for reliable communication between dual processors provided by the present invention, such as Figure 4 Shown is a structural block diagram of an embodiment of a TBox reliable communication system between dual processors provided by the present invention. Figure 4 It can be seen that the system includes: a data frame establishing module 101 and a data sending module 102 arranged in the MPU monitoring process, and an MPU monitoring module 103 arranged in the MCU.

[0073] The data frame establishment module 101 is used for receiving the running status periodically sent by other processes of the MPU of the TBox, and establishing a data frame representing the running status of each other process.

[0074] The other processes represent all processes in the MPU except the monitoring process.

[0075] The data sending module 102 periodically sends data frames to the MCU of TBox.

[0076] The MPU monitori...

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Abstract

The invention relates to a method and a system for reliable communication between dual processors of a TBox, and the method comprises the steps: enabling other processes of an MPU of the TBox to periodically send a running state to a monitoring process, and enabling the monitoring process to establish a data frame representing the running state of each other process; periodically sending the dataframes to the MCU of the TBox by the monitoring process; and judging the running condition of each process of the MPU by the MCU according to the received data frame. By monitoring the process of theMPU through the MCU, the situations that when the MPU is abnormal and cannot be recovered by itself, but the MCU does not know the state of the MPU, system function errors are caused, and services cannot run normally can be effectively avoided.

Description

Technical field [0001] The present invention relates to the field of communication, in particular to a method and system for reliable communication between dual processors of TBox. Background technique [0002] The current 4G TBox (Telematics BOX, telematics box) platform adopts the hardware architecture of MPU (Microprocessor Unit, microprocessor) + MCU. MPU is a high-performance ARM chip, which is mainly responsible for the business-related work of TBox, such as network Data transmission, emergency calls, etc. MCU is generally an MCU with CAN function, which is mainly responsible for CAN transceiver, power status management and diagnosis management of TBox. Therefore, a large amount of communication data will be generated between MPU and MCU. [0003] However, due to the complexity of the system, the MPU is prone to process crashes, the process cannot be reloaded or cannot be started automatically, but these abnormal states of the MPU cannot be synchronized to the MCU for corre...

Claims

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Application Information

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IPC IPC(8): G06F15/173
CPCG06F15/17337
Inventor 程德心李诒雯王晶
Owner WUHAN KOTEI INFORMATICS
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