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A 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 be processed synchronously

Active Publication Date: 2022-06-17
WUHAN KOTEI INFORMATICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • A method and system for reliable communication between dual processors of tbox
  • A method and system for reliable communication between dual processors of tbox
  • A 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 a TBox provided by the present invention, such as figure 2 Shown is an interactive schematic diagram of reliable communication between dual processors of a TBox provided by the present invention, which is composed of 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 creates 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 state of each process provided by the present invention, which is represented by image 3 It ...

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 system for reliable communication between dual processors of a TBox provided by the present invention, consisting of Figure 4 It can be known that the system includes: a data frame establishment module 101 and a data transmission 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 configured to receive the running status periodically sent by other processes of the MPU of the TBox, and establish a data frame representing the running status of each other process.

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

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

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Abstract

The present invention relates to a method and system for reliable communication between dual processors of TBox. The method includes: other processes of the MPU of TBox periodically send the running status to the monitoring process, and the monitoring process establishes data representing the running status of each other process frame; the monitoring process periodically sends data frames to the MCU of TBox; the MCU judges the running status of each process of the MPU according to the received data frames. Through the process monitoring of the MPU by the MCU, it can effectively avoid the situation that when the MPU is abnormal and cannot be recovered by itself, but the MCU does not know the status of the MPU, resulting in system function errors and abnormal business operations.

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 a 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 transfer, emergency calls, etc. The MCU is generally a MCU with CAN function, which is mainly responsible for the CAN transceiver, power status management and diagnosis management of the TBox. Therefore, a large amount of communication data will be generated between the MPU and the MCU. [0003] Due to the complexity of the system, the MPU is prone to process crashes, the process cannot be reloaded or cannot be self-started, etc. However, these abnormal states of the MPU cannot be synchronized to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F15/173
CPCG06F15/17337
Inventor 程德心李诒雯王晶
Owner WUHAN KOTEI INFORMATICS
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