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Receiving device, monitoring apparatus and computer program

A receiving device and monitoring machine technology, which is applied in computing, data exchange through path configuration, instruments, etc., can solve the problems of the function decline of the receiving device and the inability to process data, etc., and achieve the effect of small processing capacity

Active Publication Date: 2020-04-10
AUTONETWORKS TECH LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the receiving device can hardly process the data received from other ECUs different from the ECU, and the function of the receiving device is degraded.

Method used

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  • Receiving device, monitoring apparatus and computer program
  • Receiving device, monitoring apparatus and computer program
  • Receiving device, monitoring apparatus and computer program

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0049] figure 1 It is a block diagram showing the configuration of main parts of the communication system 1 in the first embodiment. The communication system 1 is appropriately mounted on a vehicle, and includes a relay device 2 and ECUs 3 a , 3 b , 3 c , 40 , 41 , 50 , and 51 . Three ECUs 3 a , 3 b , and 3 c are individually connected to the relay device 2 . Two communication buses 42 and 52 are also separately connected to the relay device 2 . Two ECUs 40 and 41 are separately connected to the communication bus 42 in addition to the relay device 2 . Two ECUs 50 and 51 are separately connected to the communication bus 52 in addition to the relay device 2 .

[0050] ECU3a, 3b, 3c, 40, 41, 50, 51 are each connected to the electrical equipment which is not shown in figure, and control the operation|movement of the electrical equipment connected to this apparatus. Furthermore, ECU3a, 3b, 3c, 40, 41, 50, 51 function as a communication device, and communicate with each other. ...

Embodiment approach 2

[0163] Figure 10 It is a flowchart showing the procedure of the monitoring process in Embodiment 2.

[0164] Hereinafter, regarding Embodiment 2, points different from Embodiment 1 will be described. Since the structures other than those described later are the same as those in Embodiment 1, the same reference numerals as in Embodiment 1 are attached to the same components as in Embodiment 1, and descriptions thereof will be omitted.

[0165] When comparing the communication system 1 in Embodiment 1 with the communication system 1 in Embodiment 2, the procedure of the monitoring process is different. The control unit 70 of the bus repeater 21 executes the monitoring process in Embodiment 2 at a monitoring cycle. Steps S21 to S25 and S27 to S31 of the monitoring process in Embodiment 2 are the same as steps S1 to S5 and S7 to S11 of the monitoring process in Embodiment 1, respectively. Therefore, detailed descriptions of steps S21 to S25 and S27 to S31 are omitted.

[0166...

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PUM

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Abstract

According to the present invention, in a relay device (2), a transmitting / receiving unit (60a) of an ECU relay (20) receives data. A first counter value increases when the amount of data, received bythe transmitting / receiving unit (60a), per unit time exceeds a first threshold value. A second counter value increases when the amount of data, received by the transmitting / receiving unit (60a), per unit time exceeds a second threshold value. The second threshold value is greater than the first threshold value. A control unit (70) of a bus relay (21) repeatedly monitors the first counter value. When the first counter value is increased, the control unit (70) shortens a period for monitoring the second counter value.

Description

technical field [0001] The present invention relates to a receiving device for receiving data, a monitoring machine for monitoring the receiving state of data, and a computer program. Background technique [0002] A plurality of ECUs (Electronic Control Units: Electronic Control Units) that control the respective operations of a plurality of electrical devices are mounted on the vehicle. Furthermore, a communication system in which a plurality of ECUs communicate with each other is installed in a large number of vehicles. As a communication system in which a plurality of ECUs communicate with each other, a communication system that includes a receiving device that receives data from one ECU and transmits the data received by the receiving device to other ECUs is considered. [0003] As a configuration that degrades the function of the receiving device, for example, a configuration in which the control program of the ECU that transmits data to the receiving device is falsifi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/55H04L12/40
CPCH04L12/40G06F21/55H04L2012/40215H04L2012/40273G06F2201/81G06F2201/88G06F11/3041H04L63/1458H04L63/1416G06F11/3003H04L63/1425
Inventor 立石博志上田浩史田中亮野田哲矢上口翔悟
Owner AUTONETWORKS TECH LTD