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Sending device and communication system

A technology of sending device and receiving device, which is applied in the direction of transmission system, digital transmission system, electrical components, etc., can solve problems such as inability to improve transmission efficiency, and achieve the effect of efficient communication

Inactive Publication Date: 2017-12-19
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in order to ensure the reliability of the expected communication accuracy, excessive data division and encoding are often performed, resulting in the problem that the transmission efficiency cannot be improved

Method used

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  • Sending device and communication system
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  • Sending device and communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0064] FIG. 1-1 is a diagram illustrating the configuration of a communication system according to Embodiment 1 of the present invention. The communication system S1 according to Embodiment 1 is configured by connecting a transmission device T1 and a reception device R1 via a communication line C. FIG. In Fig. 1-1, a communication system S1 is constituted by a transmitter T1 mounted on equipment A constituting FA (Factory Automation) and a receiving device R1 mounted on equipment B constituting FA. The transmitting device T1 on the device B and the receiving device R1 mounted on the device A constitute another communication system S1. The equipment A is, for example, a programmable logic controller (PLC) as a control device. The facility B is, for example, a processing device to be controlled.

[0065]A programmable logic controller (PLC) (device A) as a control device has, for example: an MPU (Micro Processing Unit) that controls processing within the programmable logic con...

Embodiment approach 2

[0113] FIG. 2-1 is a diagram illustrating the configuration of a communication system according to Embodiment 2 of the present invention. The communication system S2 according to Embodiment 2 is configured by connecting a transmission device T2 and a reception device R2 via a communication line C. FIG. In Fig. 2-1, a communication system S2 is constituted by the transmitter T2 mounted on the device A constituting the FA and the receiving device R2 mounted on the device B constituting the FA. The device T2 and the receiving device R2 mounted on the device A constitute another communication system S2. In addition, since the device A, the device B, etc. are the same as those in the first embodiment, the description in the first embodiment is referred to, and the description is omitted here.

[0114] FIG. 2-2 is a block diagram illustrating the configuration of the transmission device T2 of the communication system S2 according to the second embodiment. The transmitting device T...

Embodiment approach 3

[0155] FIG. 3-1 is a diagram illustrating the configuration of a communication system according to Embodiment 3 of the present invention. The communication system S3 according to Embodiment 3 is configured by connecting a transmission device T3 and a reception device R3 via a communication line C. FIG. In Fig. 3-1, a communication system S3 is constituted by the transmitter T3 mounted on the device A constituting the FA and the receiving device R3 mounted on the device B constituting the FA. The device T3 and the receiving device R3 mounted on the device A constitute another communication system S3. In addition, since the device A, the device B, etc. are the same as those in the first embodiment, the description in the first embodiment is referred to, and the description is omitted here.

[0156] FIG. 3-2 is a block diagram illustrating the configuration of the transmission device T3 of the communication system S3 according to the third embodiment. The transmitting device T3...

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Abstract

The present invention provides a transmitting device for constituting a communication system for communicating information with a receiving device using an error detection code, the transmitting device having a determination unit based on a correlation with a non-detection probability of an information transmission error per unit time parameter and the data length of the above-mentioned information, and judge whether the transmission error non-detection probability of the above-mentioned information satisfies the conditions related to the transmission error non-detection probability included in the above-mentioned parameters, and the sending device is based on the judgment result of the above-mentioned judging unit to satisfy The information is divided according to the above conditions, or the error detection codes are added to the divided information, and the information is transmitted to the receiving device.

Description

[0001] This application is a divisional application based on the Chinese National Application No. 200780053722.1 (PCT / JP2007 / 063742) (transmitting device and communication system) filed on July 10, 2007, the contents of which are cited below. technical field [0002] The present invention relates to a transmission device and a communication system, and more particularly to a transmission device and a communication system for performing communication requiring a guarantee of a transmission error undetected probability per unit time. Background technique [0003] The technique of improving the reliability of the communication accuracy rate in the existing signal transmission path is realized by adding an error detection code such as CRC (Cyclic Redundancy Check) to the information on the sending side and sending it, and the receiving side The received information code is verified. [0004] In addition, there is also an example in which the data is divided into predetermined si...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
Inventor 鹫尾和则有动聪金山泰人
Owner MITSUBISHI ELECTRIC CORP
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