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Transmitter apparatus 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: 2010-03-31
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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  • Transmitter apparatus and communication system
  • Transmitter apparatus and communication system
  • Transmitter apparatus and communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0064] Picture 1-1 It is a figure explaining the structure of the communication system concerning Embodiment 1 of this 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. exist Picture 1-1Among them, a communication system S1 is constituted by the transmitter T1 mounted on the equipment A constituting FA (Factory Automation) and the receiving device R1 mounted on the equipment B constituting the FA. The device T1 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) (apparatus A) as a control device has, for example, an MPU (Micro Processing Unit) that controls processing in the programmable logic contro...

Embodiment approach 2

[0113] diagram 2-1 It is a figure explaining the structure of the communication system concerning Embodiment 2 of this 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. exist diagram 2-1 Among them, 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. In addition, the transmitter T2 mounted on the device B and the The receiving device R2 on the device A forms a further communication system S. 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] Figure 2-2 It is a block diagram for explaining the configuration of the transmission device T2 of the communication system S2 accord...

Embodiment approach 3

[0155] Figure 3-1 It is a figure explaining the structure of the communication system concerning Embodiment 3 of this 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. exist Figure 3-1 Among them, 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. In addition, the transmitter T3 mounted on the device B and the The receiving device R3 on the device A forms a further 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] Figure 3-2 It is a block diagram for explaining the configuration of the transmission device T3 of the communication system S3 accordi...

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PUM

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Abstract

A transmitter apparatus, which constitutes, together with a receiver apparatus, a communication system for performing message communication using error detection codes, comprises a determining means that determines, based on parameters related to a probability of non-detection of message transmission errors per unit time and also based on a data length of a message, whether the transmission errornon-detection probability of the message satisfies a requirement related to the transmission error non-detection probability included in the parameters. The transmitter apparatus divides, based on a determination result of the determining means, the message such that the requirement is satisfied or adds the error detection codes to the respective divided messages and then transmits the divided messages to the receiver apparatus.

Description

technical field [0001] The present invention relates to a sending device and a communication system, in particular to a [0002] There is a need for a communication transmission device and a communication system that guarantee a transmission error undetected probability per unit time. Background technique [0003] The technology 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 sends the information to 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 signal lengths on the transmitting side, CRCs are generated for each of the divided predetermined signal lengths, and the signal is transmitted, and the received signal is divided into predetermined signal l...

Claims

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Application Information

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IPC IPC(8): H04L1/00
CPCH04L1/0084H04L1/0061
Inventor 鹫尾和则有动聪金山泰人
Owner MITSUBISHI ELECTRIC CORP
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